Merge remote-tracking branch 'origin/v0.11.0-dev' into testsCheckSequenceVerify

Co-authored-by: Constantine Bitensky <constantinebitensky@gmail.com>

.github/workflows/go.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-16.04, macos-10.15 ]
+        os: [ ubuntu-16.04, macos-10.15, windows-2019 ]
     name: Testing on on ${{ matrix.os }}
     steps:
 

README.md

@@ -63,6 +63,8 @@ Join our discord server using the following link: https://discord.gg/YNYnNN5Pf2
 The [integrated github issue tracker](https://github.com/kaspanet/kaspad/issues)
 is used for this project.
 
+Issue priorities may be seen at https://github.com/orgs/kaspanet/projects/4
+
 ## Documentation
 
 The [documentation](https://github.com/kaspanet/docs) is a work-in-progress

app/app.go

@@ -85,12 +85,6 @@ func (app *kaspadApp) main(startedChan chan<- struct{}) error {
 		profiling.Start(app.cfg.Profile, log)
 	}
 
-	// Perform upgrades to kaspad as new versions require it.
-	if err := doUpgrades(); err != nil {
-		log.Error(err)
-		return err
-	}
-
 	// Return now if an interrupt signal was triggered.
 	if signal.InterruptRequested(interrupt) {
 		return nil
@@ -163,12 +157,6 @@ func (app *kaspadApp) main(startedChan chan<- struct{}) error {
 	return nil
 }
 
-// doUpgrades performs upgrades to kaspad as new versions require it.
-// currently it's a placeholder we got from kaspad upstream, that does nothing
-func doUpgrades() error {
-	return nil
-}
-
 // dbPath returns the path to the block database given a database type.
 func databasePath(cfg *config.Config) string {
 	return filepath.Join(cfg.AppDir, "data")
@@ -181,6 +169,17 @@ func removeDatabase(cfg *config.Config) error {
 
 func openDB(cfg *config.Config) (database.Database, error) {
 	dbPath := databasePath(cfg)
+
+	err := checkDatabaseVersion(dbPath)
+	if err != nil {
+		return nil, err
+	}
+
 	log.Infof("Loading database from '%s'", dbPath)
-	return ldb.NewLevelDB(dbPath, leveldbCacheSizeMiB)
+	db, err := ldb.NewLevelDB(dbPath, leveldbCacheSizeMiB)
+	if err != nil {
+		return nil, err
+	}
+
+	return db, nil
 }

app/appmessage/domainconverters.go

@@ -163,14 +163,10 @@ func outpointToDomainOutpoint(outpoint *Outpoint) *externalapi.DomainOutpoint {
 func RPCTransactionToDomainTransaction(rpcTransaction *RPCTransaction) (*externalapi.DomainTransaction, error) {
 	inputs := make([]*externalapi.DomainTransactionInput, len(rpcTransaction.Inputs))
 	for i, input := range rpcTransaction.Inputs {
-		transactionID, err := transactionid.FromString(input.PreviousOutpoint.TransactionID)
+		previousOutpoint, err := RPCOutpointToDomainOutpoint(input.PreviousOutpoint)
 		if err != nil {
 			return nil, err
 		}
-		previousOutpoint := &externalapi.DomainOutpoint{
-			TransactionID: *transactionID,
-			Index:         input.PreviousOutpoint.Index,
-		}
 		signatureScript, err := hex.DecodeString(input.SignatureScript)
 		if err != nil {
 			return nil, err
@@ -213,6 +209,36 @@ func RPCTransactionToDomainTransaction(rpcTransaction *RPCTransaction) (*externa
 	}, nil
 }
 
+// RPCOutpointToDomainOutpoint converts RPCOutpoint to  DomainOutpoint
+func RPCOutpointToDomainOutpoint(outpoint *RPCOutpoint) (*externalapi.DomainOutpoint, error) {
+	transactionID, err := transactionid.FromString(outpoint.TransactionID)
+	if err != nil {
+		return nil, err
+	}
+	return &externalapi.DomainOutpoint{
+		TransactionID: *transactionID,
+		Index:         outpoint.Index,
+	}, nil
+}
+
+// RPCUTXOEntryToUTXOEntry converts RPCUTXOEntry to UTXOEntry
+func RPCUTXOEntryToUTXOEntry(entry *RPCUTXOEntry) (externalapi.UTXOEntry, error) {
+	script, err := hex.DecodeString(entry.ScriptPublicKey.Script)
+	if err != nil {
+		return nil, err
+	}
+
+	return utxo.NewUTXOEntry(
+		entry.Amount,
+		&externalapi.ScriptPublicKey{
+			Script:  script,
+			Version: entry.ScriptPublicKey.Version,
+		},
+		entry.IsCoinbase,
+		entry.BlockDAAScore,
+	), nil
+}
+
 // DomainTransactionToRPCTransaction converts DomainTransactions to RPCTransactions
 func DomainTransactionToRPCTransaction(transaction *externalapi.DomainTransaction) *RPCTransaction {
 	inputs := make([]*RPCTransactionInput, len(transaction.Inputs))
@@ -257,22 +283,27 @@ func OutpointAndUTXOEntryPairsToDomainOutpointAndUTXOEntryPairs(
 
 	domainOutpointAndUTXOEntryPairs := make([]*externalapi.OutpointAndUTXOEntryPair, len(outpointAndUTXOEntryPairs))
 	for i, outpointAndUTXOEntryPair := range outpointAndUTXOEntryPairs {
-		domainOutpointAndUTXOEntryPairs[i] = &externalapi.OutpointAndUTXOEntryPair{
-			Outpoint: &externalapi.DomainOutpoint{
-				TransactionID: outpointAndUTXOEntryPair.Outpoint.TxID,
-				Index:         outpointAndUTXOEntryPair.Outpoint.Index,
-			},
-			UTXOEntry: utxo.NewUTXOEntry(
-				outpointAndUTXOEntryPair.UTXOEntry.Amount,
-				outpointAndUTXOEntryPair.UTXOEntry.ScriptPublicKey,
-				outpointAndUTXOEntryPair.UTXOEntry.IsCoinbase,
-				outpointAndUTXOEntryPair.UTXOEntry.BlockDAAScore,
-			),
-		}
+		domainOutpointAndUTXOEntryPairs[i] = outpointAndUTXOEntryPairToDomainOutpointAndUTXOEntryPair(outpointAndUTXOEntryPair)
 	}
 	return domainOutpointAndUTXOEntryPairs
 }
 
+func outpointAndUTXOEntryPairToDomainOutpointAndUTXOEntryPair(
+	outpointAndUTXOEntryPair *OutpointAndUTXOEntryPair) *externalapi.OutpointAndUTXOEntryPair {
+	return &externalapi.OutpointAndUTXOEntryPair{
+		Outpoint: &externalapi.DomainOutpoint{
+			TransactionID: outpointAndUTXOEntryPair.Outpoint.TxID,
+			Index:         outpointAndUTXOEntryPair.Outpoint.Index,
+		},
+		UTXOEntry: utxo.NewUTXOEntry(
+			outpointAndUTXOEntryPair.UTXOEntry.Amount,
+			outpointAndUTXOEntryPair.UTXOEntry.ScriptPublicKey,
+			outpointAndUTXOEntryPair.UTXOEntry.IsCoinbase,
+			outpointAndUTXOEntryPair.UTXOEntry.BlockDAAScore,
+		),
+	}
+}
+
 // DomainOutpointAndUTXOEntryPairsToOutpointAndUTXOEntryPairs converts
 // domain OutpointAndUTXOEntryPairs to OutpointAndUTXOEntryPairs
 func DomainOutpointAndUTXOEntryPairsToOutpointAndUTXOEntryPairs(

app/appmessage/message.go

@@ -137,6 +137,11 @@ const (
 	CmdPruningPointUTXOSetOverrideNotificationMessage
 	CmdStopNotifyingPruningPointUTXOSetOverrideRequestMessage
 	CmdStopNotifyingPruningPointUTXOSetOverrideResponseMessage
+	CmdEstimateNetworkHashesPerSecondRequestMessage
+	CmdEstimateNetworkHashesPerSecondResponseMessage
+	CmdNotifyVirtualDaaScoreChangedRequestMessage
+	CmdNotifyVirtualDaaScoreChangedResponseMessage
+	CmdVirtualDaaScoreChangedNotificationMessage
 )
 
 // ProtocolMessageCommandToString maps all MessageCommands to their string representation
@@ -248,6 +253,11 @@ var RPCMessageCommandToString = map[MessageCommand]string{
 	CmdPruningPointUTXOSetOverrideNotificationMessage:             "PruningPointUTXOSetOverrideNotification",
 	CmdStopNotifyingPruningPointUTXOSetOverrideRequestMessage:     "StopNotifyingPruningPointUTXOSetOverrideRequest",
 	CmdStopNotifyingPruningPointUTXOSetOverrideResponseMessage:    "StopNotifyingPruningPointUTXOSetOverrideResponse",
+	CmdEstimateNetworkHashesPerSecondRequestMessage:               "EstimateNetworkHashesPerSecondRequest",
+	CmdEstimateNetworkHashesPerSecondResponseMessage:              "EstimateNetworkHashesPerSecondResponse",
+	CmdNotifyVirtualDaaScoreChangedRequestMessage:                 "NotifyVirtualDaaScoreChangedRequest",
+	CmdNotifyVirtualDaaScoreChangedResponseMessage:                "NotifyVirtualDaaScoreChangedResponse",
+	CmdVirtualDaaScoreChangedNotificationMessage:                  "VirtualDaaScoreChangedNotification",
 }
 
 // Message is an interface that describes a kaspa message. A type that

app/appmessage/rpc_estimate_network_hashes_per_second.go

@@ -0,0 +1,43 @@
+package appmessage
+
+// EstimateNetworkHashesPerSecondRequestMessage is an appmessage corresponding to
+// its respective RPC message
+type EstimateNetworkHashesPerSecondRequestMessage struct {
+	baseMessage
+	StartHash  string
+	WindowSize uint32
+}
+
+// Command returns the protocol command string for the message
+func (msg *EstimateNetworkHashesPerSecondRequestMessage) Command() MessageCommand {
+	return CmdEstimateNetworkHashesPerSecondRequestMessage
+}
+
+// NewEstimateNetworkHashesPerSecondRequestMessage returns a instance of the message
+func NewEstimateNetworkHashesPerSecondRequestMessage(startHash string, windowSize uint32) *EstimateNetworkHashesPerSecondRequestMessage {
+	return &EstimateNetworkHashesPerSecondRequestMessage{
+		StartHash:  startHash,
+		WindowSize: windowSize,
+	}
+}
+
+// EstimateNetworkHashesPerSecondResponseMessage is an appmessage corresponding to
+// its respective RPC message
+type EstimateNetworkHashesPerSecondResponseMessage struct {
+	baseMessage
+	NetworkHashesPerSecond uint64
+
+	Error *RPCError
+}
+
+// Command returns the protocol command string for the message
+func (msg *EstimateNetworkHashesPerSecondResponseMessage) Command() MessageCommand {
+	return CmdEstimateNetworkHashesPerSecondResponseMessage
+}
+
+// NewEstimateNetworkHashesPerSecondResponseMessage returns a instance of the message
+func NewEstimateNetworkHashesPerSecondResponseMessage(networkHashesPerSecond uint64) *EstimateNetworkHashesPerSecondResponseMessage {
+	return &EstimateNetworkHashesPerSecondResponseMessage{
+		NetworkHashesPerSecond: networkHashesPerSecond,
+	}
+}

app/appmessage/rpc_get_block.go

@@ -4,8 +4,8 @@ package appmessage
 // its respective RPC message
 type GetBlockRequestMessage struct {
 	baseMessage
-	Hash                          string
-	IncludeTransactionVerboseData bool
+	Hash                string
+	IncludeTransactions bool
 }
 
 // Command returns the protocol command string for the message
@@ -14,10 +14,10 @@ func (msg *GetBlockRequestMessage) Command() MessageCommand {
 }
 
 // NewGetBlockRequestMessage returns a instance of the message
-func NewGetBlockRequestMessage(hash string, includeTransactionVerboseData bool) *GetBlockRequestMessage {
+func NewGetBlockRequestMessage(hash string, includeTransactions bool) *GetBlockRequestMessage {
 	return &GetBlockRequestMessage{
-		Hash:                          hash,
-		IncludeTransactionVerboseData: includeTransactionVerboseData,
+		Hash:                hash,
+		IncludeTransactions: includeTransactions,
 	}
 }
 

app/appmessage/rpc_get_block_dag_info.go

@@ -28,6 +28,7 @@ type GetBlockDAGInfoResponseMessage struct {
 	Difficulty          float64
 	PastMedianTime      int64
 	PruningPointHash    string
+	VirtualDAAScore     uint64
 
 	Error *RPCError
 }

app/appmessage/rpc_get_blocks.go

@@ -4,9 +4,9 @@ package appmessage
 // its respective RPC message
 type GetBlocksRequestMessage struct {
 	baseMessage
-	LowHash                       string
-	IncludeBlocks                 bool
-	IncludeTransactionVerboseData bool
+	LowHash             string
+	IncludeBlocks       bool
+	IncludeTransactions bool
 }
 
 // Command returns the protocol command string for the message
@@ -16,11 +16,11 @@ func (msg *GetBlocksRequestMessage) Command() MessageCommand {
 
 // NewGetBlocksRequestMessage returns a instance of the message
 func NewGetBlocksRequestMessage(lowHash string, includeBlocks bool,
-	includeTransactionVerboseData bool) *GetBlocksRequestMessage {
+	includeTransactions bool) *GetBlocksRequestMessage {
 	return &GetBlocksRequestMessage{
-		LowHash:                       lowHash,
-		IncludeBlocks:                 includeBlocks,
-		IncludeTransactionVerboseData: includeTransactionVerboseData,
+		LowHash:             lowHash,
+		IncludeBlocks:       includeBlocks,
+		IncludeTransactions: includeTransactions,
 	}
 }
 

app/appmessage/rpc_get_info.go

@@ -11,8 +11,8 @@ func (msg *GetInfoRequestMessage) Command() MessageCommand {
 	return CmdGetInfoRequestMessage
 }
 
-// NewGeInfoRequestMessage returns a instance of the message
-func NewGeInfoRequestMessage() *GetInfoRequestMessage {
+// NewGetInfoRequestMessage returns a instance of the message
+func NewGetInfoRequestMessage() *GetInfoRequestMessage {
 	return &GetInfoRequestMessage{}
 }
 

app/appmessage/rpc_notify_virtual_daa_score_changed.go

@@ -0,0 +1,55 @@
+package appmessage
+
+// NotifyVirtualDaaScoreChangedRequestMessage is an appmessage corresponding to
+// its respective RPC message
+type NotifyVirtualDaaScoreChangedRequestMessage struct {
+	baseMessage
+}
+
+// Command returns the protocol command string for the message
+func (msg *NotifyVirtualDaaScoreChangedRequestMessage) Command() MessageCommand {
+	return CmdNotifyVirtualDaaScoreChangedRequestMessage
+}
+
+// NewNotifyVirtualDaaScoreChangedRequestMessage returns a instance of the message
+func NewNotifyVirtualDaaScoreChangedRequestMessage() *NotifyVirtualDaaScoreChangedRequestMessage {
+	return &NotifyVirtualDaaScoreChangedRequestMessage{}
+}
+
+// NotifyVirtualDaaScoreChangedResponseMessage is an appmessage corresponding to
+// its respective RPC message
+type NotifyVirtualDaaScoreChangedResponseMessage struct {
+	baseMessage
+	Error *RPCError
+}
+
+// Command returns the protocol command string for the message
+func (msg *NotifyVirtualDaaScoreChangedResponseMessage) Command() MessageCommand {
+	return CmdNotifyVirtualDaaScoreChangedResponseMessage
+}
+
+// NewNotifyVirtualDaaScoreChangedResponseMessage returns a instance of the message
+func NewNotifyVirtualDaaScoreChangedResponseMessage() *NotifyVirtualDaaScoreChangedResponseMessage {
+	return &NotifyVirtualDaaScoreChangedResponseMessage{}
+}
+
+// VirtualDaaScoreChangedNotificationMessage is an appmessage corresponding to
+// its respective RPC message
+type VirtualDaaScoreChangedNotificationMessage struct {
+	baseMessage
+	VirtualDaaScore uint64
+}
+
+// Command returns the protocol command string for the message
+func (msg *VirtualDaaScoreChangedNotificationMessage) Command() MessageCommand {
+	return CmdVirtualDaaScoreChangedNotificationMessage
+}
+
+// NewVirtualDaaScoreChangedNotificationMessage returns a instance of the message
+func NewVirtualDaaScoreChangedNotificationMessage(
+	virtualDaaScore uint64) *VirtualDaaScoreChangedNotificationMessage {
+
+	return &VirtualDaaScoreChangedNotificationMessage{
+		VirtualDaaScore: virtualDaaScore,
+	}
+}

app/component_manager.go

@@ -4,23 +4,17 @@ import (
 	"fmt"
 	"sync/atomic"
 
-	"github.com/kaspanet/kaspad/domain/utxoindex"
-
-	infrastructuredatabase "github.com/kaspanet/kaspad/infrastructure/db/database"
-
-	"github.com/kaspanet/kaspad/domain"
-
-	"github.com/kaspanet/kaspad/infrastructure/network/addressmanager"
-
-	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/id"
-
-	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/app/protocol"
 	"github.com/kaspanet/kaspad/app/rpc"
+	"github.com/kaspanet/kaspad/domain"
+	"github.com/kaspanet/kaspad/domain/consensus"
+	"github.com/kaspanet/kaspad/domain/utxoindex"
 	"github.com/kaspanet/kaspad/infrastructure/config"
+	infrastructuredatabase "github.com/kaspanet/kaspad/infrastructure/db/database"
+	"github.com/kaspanet/kaspad/infrastructure/network/addressmanager"
 	"github.com/kaspanet/kaspad/infrastructure/network/connmanager"
-	"github.com/kaspanet/kaspad/infrastructure/network/dnsseed"
 	"github.com/kaspanet/kaspad/infrastructure/network/netadapter"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/id"
 	"github.com/kaspanet/kaspad/util/panics"
 )
 
@@ -50,8 +44,6 @@ func (a *ComponentManager) Start() {
 		panics.Exit(log, fmt.Sprintf("Error starting the net adapter: %+v", err))
 	}
 
-	a.maybeSeedFromDNS()
-
 	a.connectionManager.Start()
 }
 
@@ -82,7 +74,13 @@ func (a *ComponentManager) Stop() {
 func NewComponentManager(cfg *config.Config, db infrastructuredatabase.Database, interrupt chan<- struct{}) (
 	*ComponentManager, error) {
 
-	domain, err := domain.New(cfg.ActiveNetParams, db, cfg.IsArchivalNode)
+	consensusConfig := consensus.Config{
+		Params:                          *cfg.ActiveNetParams,
+		IsArchival:                      cfg.IsArchivalNode,
+		EnableSanityCheckPruningUTXOSet: cfg.EnableSanityCheckPruningUTXOSet,
+	}
+
+	domain, err := domain.New(&consensusConfig, db)
 	if err != nil {
 		return nil, err
 	}
@@ -155,23 +153,6 @@ func setupRPC(
 	return rpcManager
 }
 
-func (a *ComponentManager) maybeSeedFromDNS() {
-	if !a.cfg.DisableDNSSeed {
-		dnsseed.SeedFromDNS(a.cfg.NetParams(), a.cfg.DNSSeed, false, nil,
-			a.cfg.Lookup, func(addresses []*appmessage.NetAddress) {
-				// Kaspad uses a lookup of the dns seeder here. Since seeder returns
-				// IPs of nodes and not its own IP, we can not know real IP of
-				// source. So we'll take first returned address as source.
-				a.addressManager.AddAddresses(addresses...)
-			})
-
-		dnsseed.SeedFromGRPC(a.cfg.NetParams(), a.cfg.GRPCSeed, false, nil,
-			func(addresses []*appmessage.NetAddress) {
-				a.addressManager.AddAddresses(addresses...)
-			})
-	}
-}
-
 // P2PNodeID returns the network ID associated with this ComponentManager
 func (a *ComponentManager) P2PNodeID() *id.ID {
 	return a.netAdapter.ID()

app/db_version.go

@@ -0,0 +1,57 @@
+package app
+
+import (
+	"os"
+	"path"
+	"strconv"
+
+	"github.com/pkg/errors"
+)
+
+const currentDatabaseVersion = 1
+
+func checkDatabaseVersion(dbPath string) (err error) {
+	versionFileName := versionFilePath(dbPath)
+
+	versionBytes, err := os.ReadFile(versionFileName)
+	if err != nil {
+		if os.IsNotExist(err) { // If version file doesn't exist, we assume that the database is new
+			return createDatabaseVersionFile(dbPath, versionFileName)
+		}
+		return err
+	}
+
+	databaseVersion, err := strconv.Atoi(string(versionBytes))
+	if err != nil {
+		return err
+	}
+
+	if databaseVersion != currentDatabaseVersion {
+		// TODO: Once there's more then one database version, it might make sense to add upgrade logic at this point
+		return errors.Errorf("Invalid database version %d. Expected version: %d", databaseVersion, currentDatabaseVersion)
+	}
+
+	return nil
+}
+
+func createDatabaseVersionFile(dbPath string, versionFileName string) error {
+	err := os.MkdirAll(dbPath, 0700)
+	if err != nil {
+		return err
+	}
+
+	versionFile, err := os.Create(versionFileName)
+	if err != nil {
+		return nil
+	}
+	defer versionFile.Close()
+
+	versionString := strconv.Itoa(currentDatabaseVersion)
+	_, err = versionFile.Write([]byte(versionString))
+	return err
+}
+
+func versionFilePath(dbPath string) string {
+	dbVersionFileName := path.Join(dbPath, "version")
+	return dbVersionFileName
+}

app/protocol/flowcontext/blocks.go

@@ -37,12 +37,14 @@ func (f *FlowContext) OnNewBlock(block *externalapi.DomainBlock,
 		newBlockInsertionResults = append(newBlockInsertionResults, unorphaningResult.blockInsertionResult)
 	}
 
+	allAcceptedTransactions := make([]*externalapi.DomainTransaction, 0)
 	for i, newBlock := range newBlocks {
 		log.Debugf("OnNewBlock: passing block %s transactions to mining manager", hash)
-		_, err = f.Domain().MiningManager().HandleNewBlockTransactions(newBlock.Transactions)
+		acceptedTransactions, err := f.Domain().MiningManager().HandleNewBlockTransactions(newBlock.Transactions)
 		if err != nil {
 			return err
 		}
+		allAcceptedTransactions = append(allAcceptedTransactions, acceptedTransactions...)
 
 		if f.onBlockAddedToDAGHandler != nil {
 			log.Debugf("OnNewBlock: calling f.onBlockAddedToDAGHandler for block %s", hash)
@@ -54,7 +56,7 @@ func (f *FlowContext) OnNewBlock(block *externalapi.DomainBlock,
 		}
 	}
 
-	return nil
+	return f.broadcastTransactionsAfterBlockAdded(newBlocks, allAcceptedTransactions)
 }
 
 // OnPruningPointUTXOSetOverride calls the handler function whenever the UTXO set
@@ -67,9 +69,9 @@ func (f *FlowContext) OnPruningPointUTXOSetOverride() error {
 }
 
 func (f *FlowContext) broadcastTransactionsAfterBlockAdded(
-	block *externalapi.DomainBlock, transactionsAcceptedToMempool []*externalapi.DomainTransaction) error {
+	addedBlocks []*externalapi.DomainBlock, transactionsAcceptedToMempool []*externalapi.DomainTransaction) error {
 
-	f.updateTransactionsToRebroadcast(block)
+	f.updateTransactionsToRebroadcast(addedBlocks)
 
 	// Don't relay transactions when in IBD.
 	if f.IsIBDRunning() {

app/protocol/flowcontext/transactions.go

@@ -25,14 +25,17 @@ func (f *FlowContext) AddTransaction(tx *externalapi.DomainTransaction) error {
 	return f.Broadcast(inv)
 }
 
-func (f *FlowContext) updateTransactionsToRebroadcast(block *externalapi.DomainBlock) {
+func (f *FlowContext) updateTransactionsToRebroadcast(addedBlocks []*externalapi.DomainBlock) {
 	f.transactionsToRebroadcastLock.Lock()
 	defer f.transactionsToRebroadcastLock.Unlock()
-	// Note: if the block is red, its transactions won't be rebroadcasted
-	// anymore, although they are not included in the UTXO set.
-	// This is probably ok, since red blocks are quite rare.
-	for _, tx := range block.Transactions {
-		delete(f.transactionsToRebroadcast, *consensushashing.TransactionID(tx))
+
+	for _, block := range addedBlocks {
+		// Note: if a transaction is included in the DAG but not accepted,
+		// it won't be rebroadcast anymore, although it is not included in
+		// the UTXO set
+		for _, tx := range block.Transactions {
+			delete(f.transactionsToRebroadcast, *consensushashing.TransactionID(tx))
+		}
 	}
 }
 

app/protocol/flows/testing/handle_relay_invs_test.go

@@ -10,6 +10,7 @@ import (
 	"github.com/kaspanet/kaspad/app/protocol/flows/blockrelay"
 	peerpkg "github.com/kaspanet/kaspad/app/protocol/peer"
 	"github.com/kaspanet/kaspad/domain"
+	"github.com/kaspanet/kaspad/domain/consensus"
 	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
 	"github.com/kaspanet/kaspad/domain/consensus/ruleerrors"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/blockheader"
@@ -129,6 +130,14 @@ type fakeRelayInvsContext struct {
 	rwLock                                        sync.RWMutex
 }
 
+func (f *fakeRelayInvsContext) EstimateNetworkHashesPerSecond(startHash *externalapi.DomainHash, windowSize int) (uint64, error) {
+	panic(errors.Errorf("called unimplemented function from test '%s'", f.testName))
+}
+
+func (f *fakeRelayInvsContext) GetBlockEvenIfHeaderOnly(blockHash *externalapi.DomainHash) (*externalapi.DomainBlock, error) {
+	panic("implement me")
+}
+
 func (f *fakeRelayInvsContext) GetBlockRelations(blockHash *externalapi.DomainHash) ([]*externalapi.DomainHash, *externalapi.DomainHash, []*externalapi.DomainHash, error) {
 	panic(errors.Errorf("called unimplemented function from test '%s'", f.testName))
 }
@@ -1496,7 +1505,7 @@ func TestHandleRelayInvs(t *testing.T) {
 		},
 	}
 
-	testutils.ForAllNets(t, true, func(t *testing.T, params *dagconfig.Params) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
 		for _, test := range tests {
 
 			// This is done to avoid race condition
@@ -1511,7 +1520,7 @@ func TestHandleRelayInvs(t *testing.T) {
 				errChan := make(chan error)
 				context := &fakeRelayInvsContext{
 					testName:    test.name,
-					params:      params,
+					params:      &consensusConfig.Params,
 					finishedIBD: make(chan struct{}),
 
 					trySetIBDRunningResponse:    true,

app/protocol/flows/testing/receiveaddresses_test.go

@@ -1,15 +1,16 @@
 package testing
 
 import (
+	"testing"
+	"time"
+
 	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/app/protocol/flows/addressexchange"
 	peerpkg "github.com/kaspanet/kaspad/app/protocol/peer"
+	"github.com/kaspanet/kaspad/domain/consensus"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
-	"github.com/kaspanet/kaspad/domain/dagconfig"
 	"github.com/kaspanet/kaspad/infrastructure/network/addressmanager"
 	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
-	"testing"
-	"time"
 )
 
 type fakeReceiveAddressesContext struct{}
@@ -19,7 +20,7 @@ func (f fakeReceiveAddressesContext) AddressManager() *addressmanager.AddressMan
 }
 
 func TestReceiveAddressesErrors(t *testing.T) {
-	testutils.ForAllNets(t, true, func(t *testing.T, params *dagconfig.Params) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
 		incomingRoute := router.NewRoute()
 		outgoingRoute := router.NewRoute()
 		peer := peerpkg.New(nil)

app/protocol/flows/transactionrelay/handle_relayed_transactions_test.go

@@ -0,0 +1,189 @@
+package transactionrelay_test
+
+import (
+	"errors"
+	"github.com/kaspanet/kaspad/app/protocol/flows/transactionrelay"
+	"github.com/kaspanet/kaspad/app/protocol/protocolerrors"
+	"github.com/kaspanet/kaspad/domain"
+	"github.com/kaspanet/kaspad/domain/consensus"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
+	"github.com/kaspanet/kaspad/infrastructure/logger"
+	"github.com/kaspanet/kaspad/util/panics"
+	"strings"
+	"testing"
+
+	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/infrastructure/config"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
+)
+
+type mocTransactionsRelayContext struct {
+	netAdapter                  *netadapter.NetAdapter
+	domain                      domain.Domain
+	sharedRequestedTransactions *transactionrelay.SharedRequestedTransactions
+}
+
+func (m *mocTransactionsRelayContext) NetAdapter() *netadapter.NetAdapter {
+	return m.netAdapter
+}
+
+func (m *mocTransactionsRelayContext) Domain() domain.Domain {
+	return m.domain
+}
+
+func (m *mocTransactionsRelayContext) SharedRequestedTransactions() *transactionrelay.SharedRequestedTransactions {
+	return m.sharedRequestedTransactions
+}
+
+func (m *mocTransactionsRelayContext) Broadcast(appmessage.Message) error {
+	return nil
+}
+
+func (m *mocTransactionsRelayContext) OnTransactionAddedToMempool() {
+}
+
+// TestHandleRelayedTransactionsNotFound tests the flow of  HandleRelayedTransactions when the peer doesn't
+// have the requested transactions in the mempool.
+func TestHandleRelayedTransactionsNotFound(t *testing.T) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
+
+		var log = logger.RegisterSubSystem("PROT")
+		var spawn = panics.GoroutineWrapperFunc(log)
+		factory := consensus.NewFactory()
+		tc, teardown, err := factory.NewTestConsensus(consensusConfig, "TestHandleRelayedTransactionsNotFound")
+		if err != nil {
+			t.Fatalf("Error setting up test consensus: %+v", err)
+		}
+		defer teardown(false)
+
+		sharedRequestedTransactions := transactionrelay.NewSharedRequestedTransactions()
+		adapter, err := netadapter.NewNetAdapter(config.DefaultConfig())
+		if err != nil {
+			t.Fatalf("Failed to create a NetAdapter: %v", err)
+		}
+		domainInstance, err := domain.New(consensusConfig, tc.Database())
+		if err != nil {
+			t.Fatalf("Failed to set up a domain instance: %v", err)
+		}
+		context := &mocTransactionsRelayContext{
+			netAdapter:                  adapter,
+			domain:                      domainInstance,
+			sharedRequestedTransactions: sharedRequestedTransactions,
+		}
+		incomingRoute := router.NewRoute()
+		defer incomingRoute.Close()
+		peerIncomingRoute := router.NewRoute()
+		defer peerIncomingRoute.Close()
+
+		txID1 := externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01})
+		txID2 := externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02})
+		txIDs := []*externalapi.DomainTransactionID{txID1, txID2}
+		invMessage := appmessage.NewMsgInvTransaction(txIDs)
+		err = incomingRoute.Enqueue(invMessage)
+		if err != nil {
+			t.Fatalf("Unexpected error from incomingRoute.Enqueue: %v", err)
+		}
+		// The goroutine is representing the peer's actions.
+		spawn("peerResponseToTheTransactionsRequest", func() {
+			msg, err := peerIncomingRoute.Dequeue()
+			if err != nil {
+				t.Fatalf("Dequeue: %v", err)
+			}
+			inv := msg.(*appmessage.MsgRequestTransactions)
+
+			if len(txIDs) != len(inv.IDs) {
+				t.Fatalf("TestHandleRelayedTransactions: expected %d transactions ID, but got %d", len(txIDs), len(inv.IDs))
+			}
+
+			for i, id := range inv.IDs {
+				if txIDs[i].String() != id.String() {
+					t.Fatalf("TestHandleRelayedTransactions: expected equal txID: expected %s, but got %s", txIDs[i].String(), id.String())
+				}
+				err = incomingRoute.Enqueue(appmessage.NewMsgTransactionNotFound(txIDs[i]))
+				if err != nil {
+					t.Fatalf("Unexpected error from incomingRoute.Enqueue: %v", err)
+				}
+			}
+			// Insert an unexpected message type to stop the infinity loop.
+			err = incomingRoute.Enqueue(&appmessage.MsgAddresses{})
+			if err != nil {
+				t.Fatalf("Unexpected error from incomingRoute.Enqueue: %v", err)
+			}
+		})
+
+		err = transactionrelay.HandleRelayedTransactions(context, incomingRoute, peerIncomingRoute)
+		// Since we inserted an unexpected message type to stop the infinity loop,
+		// we expect the error will be infected from this specific message and also the
+		// error will count as a protocol message.
+		if protocolErr := (protocolerrors.ProtocolError{}); err == nil || !errors.As(err, &protocolErr) {
+			t.Fatalf("Expected to protocol error")
+		} else {
+			if !protocolErr.ShouldBan {
+				t.Fatalf("Exepcted shouldBan true, but got false.")
+			}
+			if !strings.Contains(err.Error(), "unexpected Addresses [code 3] message in the block relay flow while expecting an inv message") {
+				t.Fatalf("Unexpected error: expected: an error due to existence of an Addresses message "+
+					"in the block relay flow, but got: %v", protocolErr.Cause)
+			}
+		}
+	})
+}
+
+// TestOnClosedIncomingRoute verifies that an appropriate error message will be returned when
+// trying to dequeue a message from a closed route.
+func TestOnClosedIncomingRoute(t *testing.T) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
+
+		factory := consensus.NewFactory()
+		tc, teardown, err := factory.NewTestConsensus(consensusConfig, "TestOnClosedIncomingRoute")
+		if err != nil {
+			t.Fatalf("Error setting up test consensus: %+v", err)
+		}
+		defer teardown(false)
+
+		sharedRequestedTransactions := transactionrelay.NewSharedRequestedTransactions()
+		adapter, err := netadapter.NewNetAdapter(config.DefaultConfig())
+		if err != nil {
+			t.Fatalf("Failed to creat a NetAdapter : %v", err)
+		}
+		domainInstance, err := domain.New(consensusConfig, tc.Database())
+		if err != nil {
+			t.Fatalf("Failed to set up a domain instance: %v", err)
+		}
+		context := &mocTransactionsRelayContext{
+			netAdapter:                  adapter,
+			domain:                      domainInstance,
+			sharedRequestedTransactions: sharedRequestedTransactions,
+		}
+		incomingRoute := router.NewRoute()
+		outgoingRoute := router.NewRoute()
+		defer outgoingRoute.Close()
+
+		txID := externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01})
+		txIDs := []*externalapi.DomainTransactionID{txID}
+
+		err = incomingRoute.Enqueue(&appmessage.MsgInvTransaction{TxIDs: txIDs})
+		if err != nil {
+			t.Fatalf("Unexpected error from incomingRoute.Enqueue: %v", err)
+		}
+		incomingRoute.Close()
+		err = transactionrelay.HandleRelayedTransactions(context, incomingRoute, outgoingRoute)
+		if err == nil || !errors.Is(err, router.ErrRouteClosed) {
+			t.Fatalf("Unexpected error: expected: %v, got : %v", router.ErrRouteClosed, err)
+		}
+	})
+}

app/protocol/flows/transactionrelay/handle_requested_transactions_test.go

@@ -0,0 +1,88 @@
+package transactionrelay_test
+
+import (
+	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/app/protocol/flows/transactionrelay"
+	"github.com/kaspanet/kaspad/domain"
+	"github.com/kaspanet/kaspad/domain/consensus"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
+	"github.com/kaspanet/kaspad/infrastructure/config"
+	"github.com/kaspanet/kaspad/infrastructure/logger"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
+	"github.com/kaspanet/kaspad/util/panics"
+	"github.com/pkg/errors"
+	"testing"
+)
+
+// TestHandleRequestedTransactionsNotFound tests the flow of  HandleRequestedTransactions
+// when the requested transactions don't found in the mempool.
+func TestHandleRequestedTransactionsNotFound(t *testing.T) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
+		var log = logger.RegisterSubSystem("PROT")
+		var spawn = panics.GoroutineWrapperFunc(log)
+		factory := consensus.NewFactory()
+		tc, teardown, err := factory.NewTestConsensus(consensusConfig, "TestHandleRequestedTransactionsNotFound")
+		if err != nil {
+			t.Fatalf("Error setting up test Consensus: %+v", err)
+		}
+		defer teardown(false)
+
+		sharedRequestedTransactions := transactionrelay.NewSharedRequestedTransactions()
+		adapter, err := netadapter.NewNetAdapter(config.DefaultConfig())
+		if err != nil {
+			t.Fatalf("Failed to create a NetAdapter: %v", err)
+		}
+		domainInstance, err := domain.New(consensusConfig, tc.Database())
+		if err != nil {
+			t.Fatalf("Failed to set up a domain Instance: %v", err)
+		}
+		context := &mocTransactionsRelayContext{
+			netAdapter:                  adapter,
+			domain:                      domainInstance,
+			sharedRequestedTransactions: sharedRequestedTransactions,
+		}
+		incomingRoute := router.NewRoute()
+		outgoingRoute := router.NewRoute()
+		defer outgoingRoute.Close()
+
+		txID1 := externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01})
+		txID2 := externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02})
+		txIDs := []*externalapi.DomainTransactionID{txID1, txID2}
+		msg := appmessage.NewMsgRequestTransactions(txIDs)
+		err = incomingRoute.Enqueue(msg)
+		if err != nil {
+			t.Fatalf("Unexpected error from incomingRoute.Enqueue: %v", err)
+		}
+		// The goroutine is representing the peer's actions.
+		spawn("peerResponseToTheTransactionsMessages", func() {
+			for i, id := range txIDs {
+				msg, err := outgoingRoute.Dequeue()
+				if err != nil {
+					t.Fatalf("Dequeue: %s", err)
+				}
+				outMsg := msg.(*appmessage.MsgTransactionNotFound)
+				if txIDs[i].String() != outMsg.ID.String() {
+					t.Fatalf("TestHandleRelayedTransactions: expected equal txID: expected %s, but got %s", txIDs[i].String(), id.String())
+				}
+			}
+			// Closed the incomingRoute for stop the infinity loop.
+			incomingRoute.Close()
+		})
+
+		err = transactionrelay.HandleRequestedTransactions(context, incomingRoute, outgoingRoute)
+		// Make sure the error is due to the closed route.
+		if err == nil || !errors.Is(err, router.ErrRouteClosed) {
+			t.Fatalf("Unexpected error: expected: %v, got : %v", router.ErrRouteClosed, err)
+		}
+	})
+}

app/protocol/protocol.go

@@ -1,8 +1,6 @@
 package protocol
 
 import (
-	"github.com/kaspanet/kaspad/app/protocol/flows/rejects"
-	"github.com/kaspanet/kaspad/infrastructure/network/connmanager"
 	"sync"
 	"sync/atomic"
 
@@ -11,10 +9,12 @@ import (
 	"github.com/kaspanet/kaspad/app/protocol/flows/blockrelay"
 	"github.com/kaspanet/kaspad/app/protocol/flows/handshake"
 	"github.com/kaspanet/kaspad/app/protocol/flows/ping"
+	"github.com/kaspanet/kaspad/app/protocol/flows/rejects"
 	"github.com/kaspanet/kaspad/app/protocol/flows/transactionrelay"
 	peerpkg "github.com/kaspanet/kaspad/app/protocol/peer"
 	"github.com/kaspanet/kaspad/app/protocol/protocolerrors"
 	"github.com/kaspanet/kaspad/infrastructure/network/addressmanager"
+	"github.com/kaspanet/kaspad/infrastructure/network/connmanager"
 	"github.com/kaspanet/kaspad/infrastructure/network/netadapter"
 	routerpkg "github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
 	"github.com/pkg/errors"
@@ -106,7 +106,7 @@ func (m *Manager) handleError(err error, netConnection *netadapter.NetConnection
 			log.Warnf("Banning %s (reason: %s)", netConnection, protocolErr.Cause)
 
 			err := m.context.ConnectionManager().Ban(netConnection)
-			if !errors.Is(err, connmanager.ErrCannotBanPermanent) {
+			if err != nil && !errors.Is(err, connmanager.ErrCannotBanPermanent) {
 				panic(err)
 			}
 

app/rpc/manager.go

@@ -64,6 +64,11 @@ func (m *Manager) NotifyBlockAddedToDAG(block *externalapi.DomainBlock, blockIns
 		return err
 	}
 
+	err = m.notifyVirtualDaaScoreChanged()
+	if err != nil {
+		return err
+	}
+
 	err = m.notifyVirtualSelectedParentChainChanged(blockInsertionResult)
 	if err != nil {
 		return err
@@ -153,6 +158,19 @@ func (m *Manager) notifyVirtualSelectedParentBlueScoreChanged() error {
 	return m.context.NotificationManager.NotifyVirtualSelectedParentBlueScoreChanged(notification)
 }
 
+func (m *Manager) notifyVirtualDaaScoreChanged() error {
+	onEnd := logger.LogAndMeasureExecutionTime(log, "RPCManager.NotifyVirtualDaaScoreChanged")
+	defer onEnd()
+
+	virtualInfo, err := m.context.Domain.Consensus().GetVirtualInfo()
+	if err != nil {
+		return err
+	}
+
+	notification := appmessage.NewVirtualDaaScoreChangedNotificationMessage(virtualInfo.DAAScore)
+	return m.context.NotificationManager.NotifyVirtualDaaScoreChanged(notification)
+}
+
 func (m *Manager) notifyVirtualSelectedParentChainChanged(blockInsertionResult *externalapi.BlockInsertionResult) error {
 	onEnd := logger.LogAndMeasureExecutionTime(log, "RPCManager.NotifyVirtualSelectedParentChainChanged")
 	defer onEnd()

app/rpc/rpc.go

@@ -44,6 +44,8 @@ var handlers = map[appmessage.MessageCommand]handler{
 	appmessage.CmdGetInfoRequestMessage:                                     rpchandlers.HandleGetInfo,
 	appmessage.CmdNotifyPruningPointUTXOSetOverrideRequestMessage:           rpchandlers.HandleNotifyPruningPointUTXOSetOverrideRequest,
 	appmessage.CmdStopNotifyingPruningPointUTXOSetOverrideRequestMessage:    rpchandlers.HandleStopNotifyingPruningPointUTXOSetOverrideRequest,
+	appmessage.CmdEstimateNetworkHashesPerSecondRequestMessage:              rpchandlers.HandleEstimateNetworkHashesPerSecond,
+	appmessage.CmdNotifyVirtualDaaScoreChangedRequestMessage:                rpchandlers.HandleNotifyVirtualDaaScoreChanged,
 }
 
 func (m *Manager) routerInitializer(router *router.Router, netConnection *netadapter.NetConnection) {

app/rpc/rpccontext/notificationmanager.go

@@ -30,6 +30,7 @@ type NotificationListener struct {
 	propagateFinalityConflictResolvedNotifications              bool
 	propagateUTXOsChangedNotifications                          bool
 	propagateVirtualSelectedParentBlueScoreChangedNotifications bool
+	propagateVirtualDaaScoreChangedNotifications                bool
 	propagatePruningPointUTXOSetOverrideNotifications           bool
 
 	propagateUTXOsChangedNotificationAddresses map[utxoindex.ScriptPublicKeyString]*UTXOsChangedNotificationAddress
@@ -181,6 +182,25 @@ func (nm *NotificationManager) NotifyVirtualSelectedParentBlueScoreChanged(
 	return nil
 }
 
+// NotifyVirtualDaaScoreChanged notifies the notification manager that the DAG's
+// virtual DAA score has changed
+func (nm *NotificationManager) NotifyVirtualDaaScoreChanged(
+	notification *appmessage.VirtualDaaScoreChangedNotificationMessage) error {
+
+	nm.RLock()
+	defer nm.RUnlock()
+
+	for router, listener := range nm.listeners {
+		if listener.propagateVirtualDaaScoreChangedNotifications {
+			err := router.OutgoingRoute().Enqueue(notification)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
 // NotifyPruningPointUTXOSetOverride notifies the notification manager that the UTXO index
 // reset due to pruning point change via IBD.
 func (nm *NotificationManager) NotifyPruningPointUTXOSetOverride() error {
@@ -308,6 +328,12 @@ func (nl *NotificationListener) PropagateVirtualSelectedParentBlueScoreChangedNo
 	nl.propagateVirtualSelectedParentBlueScoreChangedNotifications = true
 }
 
+// PropagateVirtualDaaScoreChangedNotifications instructs the listener to send
+// virtual DAA score notifications to the remote listener
+func (nl *NotificationListener) PropagateVirtualDaaScoreChangedNotifications() {
+	nl.propagateVirtualDaaScoreChangedNotifications = true
+}
+
 // PropagatePruningPointUTXOSetOverrideNotifications instructs the listener to send pruning point UTXO set override notifications
 // to the remote listener.
 func (nl *NotificationListener) PropagatePruningPointUTXOSetOverrideNotifications() {

app/rpc/rpccontext/verbosedata.go

@@ -2,11 +2,12 @@ package rpccontext
 
 import (
 	"encoding/hex"
-	difficultyPackage "github.com/kaspanet/kaspad/util/difficulty"
-	"github.com/pkg/errors"
 	"math"
 	"math/big"
 
+	difficultyPackage "github.com/kaspanet/kaspad/util/difficulty"
+	"github.com/pkg/errors"
+
 	"github.com/kaspanet/kaspad/domain/consensus/utils/hashes"
 
 	"github.com/kaspanet/kaspad/domain/consensus/utils/estimatedsize"
@@ -62,12 +63,15 @@ func (ctx *Context) PopulateBlockWithVerboseData(block *appmessage.RPCBlock, dom
 	}
 
 	block.VerboseData = &appmessage.RPCBlockVerboseData{
-		Hash:               blockHash.String(),
-		Difficulty:         ctx.GetDifficultyRatio(domainBlockHeader.Bits(), ctx.Config.ActiveNetParams),
-		ChildrenHashes:     hashes.ToStrings(childrenHashes),
-		SelectedParentHash: selectedParentHash.String(),
-		IsHeaderOnly:       blockInfo.BlockStatus == externalapi.StatusHeaderOnly,
-		BlueScore:          blockInfo.BlueScore,
+		Hash:           blockHash.String(),
+		Difficulty:     ctx.GetDifficultyRatio(domainBlockHeader.Bits(), ctx.Config.ActiveNetParams),
+		ChildrenHashes: hashes.ToStrings(childrenHashes),
+		IsHeaderOnly:   blockInfo.BlockStatus == externalapi.StatusHeaderOnly,
+		BlueScore:      blockInfo.BlueScore,
+	}
+	// selectedParentHash will be nil in the genesis block
+	if selectedParentHash != nil {
+		block.VerboseData.SelectedParentHash = selectedParentHash.String()
 	}
 
 	if blockInfo.BlockStatus == externalapi.StatusHeaderOnly {
@@ -76,7 +80,7 @@ func (ctx *Context) PopulateBlockWithVerboseData(block *appmessage.RPCBlock, dom
 
 	// Get the block if we didn't receive it previously
 	if domainBlock == nil {
-		domainBlock, err = ctx.Domain.Consensus().GetBlock(blockHash)
+		domainBlock, err = ctx.Domain.Consensus().GetBlockEvenIfHeaderOnly(blockHash)
 		if err != nil {
 			return err
 		}

app/rpc/rpchandlers/estimate_network_hashes_per_second.go

@@ -0,0 +1,39 @@
+package rpchandlers
+
+import (
+	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/app/rpc/rpccontext"
+	"github.com/kaspanet/kaspad/domain/consensus/model"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
+)
+
+// HandleEstimateNetworkHashesPerSecond handles the respectively named RPC command
+func HandleEstimateNetworkHashesPerSecond(
+	context *rpccontext.Context, _ *router.Router, request appmessage.Message) (appmessage.Message, error) {
+
+	estimateNetworkHashesPerSecondRequest := request.(*appmessage.EstimateNetworkHashesPerSecondRequestMessage)
+
+	windowSize := int(estimateNetworkHashesPerSecondRequest.WindowSize)
+	startHash := model.VirtualBlockHash
+	if estimateNetworkHashesPerSecondRequest.StartHash != "" {
+		var err error
+		startHash, err = externalapi.NewDomainHashFromString(estimateNetworkHashesPerSecondRequest.StartHash)
+		if err != nil {
+			response := &appmessage.EstimateNetworkHashesPerSecondResponseMessage{}
+			response.Error = appmessage.RPCErrorf("StartHash '%s' is not a valid block hash",
+				estimateNetworkHashesPerSecondRequest.StartHash)
+			return response, nil
+		}
+	}
+
+	networkHashesPerSecond, err := context.Domain.Consensus().EstimateNetworkHashesPerSecond(startHash, windowSize)
+	if err != nil {
+		response := &appmessage.EstimateNetworkHashesPerSecondResponseMessage{}
+		response.Error = appmessage.RPCErrorf("could not resolve network hashes per "+
+			"second for startHash %s and window size %d: %s", startHash, windowSize, err)
+		return response, nil
+	}
+
+	return appmessage.NewEstimateNetworkHashesPerSecondResponseMessage(networkHashesPerSecond), nil
+}

app/rpc/rpchandlers/get_block.go

@@ -20,18 +20,22 @@ func HandleGetBlock(context *rpccontext.Context, _ *router.Router, request appme
 		return errorMessage, nil
 	}
 
-	header, err := context.Domain.Consensus().GetBlockHeader(hash)
+	block, err := context.Domain.Consensus().GetBlockEvenIfHeaderOnly(hash)
 	if err != nil {
 		errorMessage := &appmessage.GetBlockResponseMessage{}
 		errorMessage.Error = appmessage.RPCErrorf("Block %s not found", hash)
 		return errorMessage, nil
 	}
-	block := &externalapi.DomainBlock{Header: header}
 
 	response := appmessage.NewGetBlockResponseMessage()
-	response.Block = appmessage.DomainBlockToRPCBlock(block)
 
-	err = context.PopulateBlockWithVerboseData(response.Block, header, nil, getBlockRequest.IncludeTransactionVerboseData)
+	if getBlockRequest.IncludeTransactions {
+		response.Block = appmessage.DomainBlockToRPCBlock(block)
+	} else {
+		response.Block = appmessage.DomainBlockToRPCBlock(&externalapi.DomainBlock{Header: block.Header})
+	}
+
+	err = context.PopulateBlockWithVerboseData(response.Block, block.Header, block, getBlockRequest.IncludeTransactions)
 	if err != nil {
 		if errors.Is(err, rpccontext.ErrBuildBlockVerboseDataInvalidBlock) {
 			errorMessage := &appmessage.GetBlockResponseMessage{}

app/rpc/rpchandlers/get_block_dag_info.go

@@ -35,6 +35,7 @@ func HandleGetBlockDAGInfo(context *rpccontext.Context, _ *router.Router, _ appm
 	response.VirtualParentHashes = hashes.ToStrings(virtualInfo.ParentHashes)
 	response.Difficulty = context.GetDifficultyRatio(virtualInfo.Bits, context.Config.ActiveNetParams)
 	response.PastMedianTime = virtualInfo.PastMedianTime
+	response.VirtualDAAScore = virtualInfo.DAAScore
 
 	pruningPoint, err := context.Domain.Consensus().PruningPoint()
 	if err != nil {

app/rpc/rpchandlers/get_blocks.go

@@ -18,11 +18,11 @@ const (
 func HandleGetBlocks(context *rpccontext.Context, _ *router.Router, request appmessage.Message) (appmessage.Message, error) {
 	getBlocksRequest := request.(*appmessage.GetBlocksRequestMessage)
 
-	// Validate that user didn't set IncludeTransactionVerboseData without setting IncludeBlocks
-	if !getBlocksRequest.IncludeBlocks && getBlocksRequest.IncludeTransactionVerboseData {
+	// Validate that user didn't set IncludeTransactions without setting IncludeBlocks
+	if !getBlocksRequest.IncludeBlocks && getBlocksRequest.IncludeTransactions {
 		return &appmessage.GetBlocksResponseMessage{
 			Error: appmessage.RPCErrorf(
-				"If includeTransactionVerboseData is set, then includeBlockVerboseData must be set as well"),
+				"If includeTransactions is set, then includeBlockVerboseData must be set as well"),
 		}, nil
 	}
 
@@ -84,19 +84,24 @@ func HandleGetBlocks(context *rpccontext.Context, _ *router.Router, request appm
 	response := appmessage.NewGetBlocksResponseMessage()
 	response.BlockHashes = hashes.ToStrings(blockHashes)
 	if getBlocksRequest.IncludeBlocks {
-		blocks := make([]*appmessage.RPCBlock, len(blockHashes))
+		rpcBlocks := make([]*appmessage.RPCBlock, len(blockHashes))
 		for i, blockHash := range blockHashes {
-			blockHeader, err := context.Domain.Consensus().GetBlockHeader(blockHash)
+			block, err := context.Domain.Consensus().GetBlockEvenIfHeaderOnly(blockHash)
 			if err != nil {
 				return nil, err
 			}
-			block := &externalapi.DomainBlock{Header: blockHeader}
-			blocks[i] = appmessage.DomainBlockToRPCBlock(block)
-			err = context.PopulateBlockWithVerboseData(blocks[i], blockHeader, nil, getBlocksRequest.IncludeTransactionVerboseData)
+
+			if getBlocksRequest.IncludeTransactions {
+				rpcBlocks[i] = appmessage.DomainBlockToRPCBlock(block)
+			} else {
+				rpcBlocks[i] = appmessage.DomainBlockToRPCBlock(&externalapi.DomainBlock{Header: block.Header})
+			}
+			err = context.PopulateBlockWithVerboseData(rpcBlocks[i], block.Header, nil, getBlocksRequest.IncludeTransactions)
 			if err != nil {
 				return nil, err
 			}
 		}
+		response.Blocks = rpcBlocks
 	}
 
 	return response, nil

app/rpc/rpchandlers/get_blocks_test.go

@@ -15,7 +15,6 @@ import (
 	"github.com/kaspanet/kaspad/domain/consensus/model/testapi"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/hashes"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
-	"github.com/kaspanet/kaspad/domain/dagconfig"
 	"github.com/kaspanet/kaspad/domain/miningmanager"
 	"github.com/kaspanet/kaspad/infrastructure/config"
 )
@@ -28,18 +27,18 @@ func (d fakeDomain) Consensus() externalapi.Consensus           { return d }
 func (d fakeDomain) MiningManager() miningmanager.MiningManager { return nil }
 
 func TestHandleGetBlocks(t *testing.T) {
-	testutils.ForAllNets(t, true, func(t *testing.T, params *dagconfig.Params) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
 		stagingArea := model.NewStagingArea()
 
 		factory := consensus.NewFactory()
-		tc, teardown, err := factory.NewTestConsensus(params, false, "TestHandleGetBlocks")
+		tc, teardown, err := factory.NewTestConsensus(consensusConfig, "TestHandleGetBlocks")
 		if err != nil {
 			t.Fatalf("Error setting up consensus: %+v", err)
 		}
 		defer teardown(false)
 
 		fakeContext := rpccontext.Context{
-			Config: &config.Config{Flags: &config.Flags{NetworkFlags: config.NetworkFlags{ActiveNetParams: params}}},
+			Config: &config.Config{Flags: &config.Flags{NetworkFlags: config.NetworkFlags{ActiveNetParams: &consensusConfig.Params}}},
 			Domain: fakeDomain{tc},
 		}
 
@@ -81,7 +80,7 @@ func TestHandleGetBlocks(t *testing.T) {
 		//        \       |      /
 		//               etc.
 		expectedOrder := make([]*externalapi.DomainHash, 0, 40)
-		mergingBlock := params.GenesisHash
+		mergingBlock := consensusConfig.GenesisHash
 		for i := 0; i < 10; i++ {
 			splitBlocks := make([]*externalapi.DomainHash, 0, 3)
 			for j := 0; j < 3; j++ {
@@ -134,13 +133,13 @@ func TestHandleGetBlocks(t *testing.T) {
 				virtualSelectedParent, actualBlocks.BlockHashes)
 		}
 
-		expectedOrder = append([]*externalapi.DomainHash{params.GenesisHash}, expectedOrder...)
+		expectedOrder = append([]*externalapi.DomainHash{consensusConfig.GenesisHash}, expectedOrder...)
 		actualOrder := getBlocks(nil)
 		if !reflect.DeepEqual(actualOrder.BlockHashes, hashes.ToStrings(expectedOrder)) {
 			t.Fatalf("TestHandleGetBlocks \nexpected: %v \nactual:\n%v", expectedOrder, actualOrder.BlockHashes)
 		}
 
-		requestAllExplictly := getBlocks(params.GenesisHash)
+		requestAllExplictly := getBlocks(consensusConfig.GenesisHash)
 		if !reflect.DeepEqual(requestAllExplictly.BlockHashes, hashes.ToStrings(expectedOrder)) {
 			t.Fatalf("TestHandleGetBlocks \nexpected: \n%v\n. actual:\n%v", expectedOrder, requestAllExplictly.BlockHashes)
 		}

app/rpc/rpchandlers/notify_virtual_daa_score_changed.go

@@ -0,0 +1,19 @@
+package rpchandlers
+
+import (
+	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/app/rpc/rpccontext"
+	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
+)
+
+// HandleNotifyVirtualDaaScoreChanged handles the respectively named RPC command
+func HandleNotifyVirtualDaaScoreChanged(context *rpccontext.Context, router *router.Router, _ appmessage.Message) (appmessage.Message, error) {
+	listener, err := context.NotificationManager.Listener(router)
+	if err != nil {
+		return nil, err
+	}
+	listener.PropagateVirtualDaaScoreChangedNotifications()
+
+	response := appmessage.NewNotifyVirtualDaaScoreChangedResponseMessage()
+	return response, nil
+}

changelog.txt

@@ -1,11 +1,95 @@
+Kaspad v0.10.2 - 2021-05-18
+===========================
+Non-breaking changes:
+* Fix getBlock and getBlocks RPC commands to return blocks and transactions properly (#1716)
+* serializeAddress should always serialize as IPv6, since it assumes the IP size is 16 bytes (#1720)
+* Add VirtualDaaScore to GetBlockDagInfo (#1719)
+* Fix calcTxSequenceLockFromReferencedUTXOEntries for loop break condition (#1723)
+* Fix overflow when checking coinbase maturity and don't ban peers that send transactions with immature spend (#1722)
+
+Kaspad v0.10.1 - 2021-05-11
+===========================
+* Calculate virtual's acceptance data and multiset after importing a new pruning point (#1700)
+
+Kaspad v0.10.0 - 2021-04-26
+===========================
+Major changes include:
+* Implementing a signature hashing scheme similar to BIP-143
+* Replacing HASH160 with BLAKE2B
+* Replacing ECMH with MuHash
+* Removing RIPEMD160 and SHA1 from the codebase entirely
+* Making P2PKH transactions non-standard
+* Vastly enhancing the CLI wallet
+* Restructuring kaspad's app/home directory
+* Modifying block and transaction types in the RPC to be easier to consume clientside
+
+A partial list of the more-important commits is as follows:
+* Fix data race in GetBlockChildren (#1579)
+* Remove payload hash (#1583)
+* Add the mempool size to getInfo RPC command (#1584)
+* Change the difficulty to be calculated based on the same block instead of its selected parent (#1591)
+* Adjust the difficulty in the first difficultyAdjustmentWindowSize blocks (#1592)
+* Adding DAA score (#1596)
+* Use DAA score where needed (#1602)
+* Remove the Services field from NetAddress. (#1610)
+* Fix getBlocks to not add the anticone when some blocks were filtered by GetHashesBetween (#1611)
+* Restructure the default ~/.kaspad directory layout (#1613)
+* Replace the HomeDir flag with a AppDir flag (#1615)
+* Implement BIP-143-like sighash (#1598)
+* Change --datadir to --appdir and remove symmetrical connection in stability tests (#1617)
+* Use BLAKE2B instead of HASH160, and get rid of any usage of RIPEMD160 and SHA1 (#1618)
+* Replace ECMH with Muhash (#1624)
+* Add support for multiple staging areas (#1633)
+* Make sure the ghostdagDataStore cache is at least DifficultyAdjustmentBlockWindow sized (#1635)
+* Resolve each block status in it's own staging area (#1634)
+* Add mass limit to mempool (#1627)
+* In RPC, use RPCTransactions and RPCBlocks instead of TransactionMessages and BlockMessages (#1609)
+* Use go-secp256k1 v0.0.5 (#1640)
+* Add a show-address subcommand to kaspawallet (#1653)
+* Replace p2pkh with p2pk (#1650)
+* Implement importing private keys into the wallet (#1655)
+* Add dump unencrypted data sub command to the wallet (#1661)
+* Add ECDSA support (#1657)
+* Add OpCheckMultiSigECDSA (#1663)
+* Add ECDSA support to the wallet (#1664)
+* Make moving the pruning point faster (#1660)
+* Implement new mechanism for updating UTXO Diffs (#1671)
+
+Kaspad v0.9.2 - 2021-03-31
+===========================
+* Increase the route capacity of InvTransaction messages. (#1603) (#1637)
+
+Kaspad v0.9.1 - 2021-03-14
+===========================
+* Testnet network reset
+
+Kaspad v0.9.0 - 2021-03-04
+===========================
+
+* Merge big subdags in pick virtual parents (#1574)
+* Write in the reject message the tx rejection reason (#1573)
+* Add nil checks for protowire (#1570)
+* Increase getBlocks limit to 1000 (#1572)
+* Return RPC error if getBlock's lowHash doesn't exist (#1569)
+* Add default dns-seeder to testnet (#1568)
+* Fix utxoindex deserialization (#1566)
+* Add pruning point hash to GetBlockDagInfo response (#1565)
+* Use EmitUnpopulated so that kaspactl prints all fields, even the default ones (#1561)
+* Stop logging an error whenever an RPC/P2P connection is canceled  (#1562)
+* Cleanup the logger and make it asynchronous (#1524)
+* Close all iterators (#1542)
+* Add childrenHashes to GetBlock/s RPC commands (#1560)
+* Add ScriptPublicKey.Version to RPC (#1559)
+* Fix the target block rate to create less bursty mining (#1554)
+
 Kaspad v0.8.10 - 2021-02-25
 ===========================
 
-[*] Fix bug where invalid mempool transactions were not removed (#1551)
-[*] Add RPC reconnection to the miner (#1552)
-[*] Remove virtual diff parents - only selectedTip is virtualDiffParent now (#1550)
-[*] Fix UTXO index (#1548)
-[*] Prevent fast failing (#1545)
-[*] Increase the sleep time in kaspaminer when the node is not synced (#1544)
-[*] Disallow header only blocks on RPC, relay and when requesting IBD full blocks (#1537)
-[*] Make templateManager hold a DomainBlock and isSynced bool instead of a GetBlockTemplateResponseMessage (#1538)
+* Fix bug where invalid mempool transactions were not removed (#1551)
+* Add RPC reconnection to the miner (#1552)
+* Remove virtual diff parents - only selectedTip is virtualDiffParent now (#1550)
+* Fix UTXO index (#1548)
+* Prevent fast failing (#1545)
+* Increase the sleep time in kaspaminer when the node is not synced (#1544)
+* Disallow header only blocks on RPC, relay and when requesting IBD full blocks (#1537)
+* Make templateManager hold a DomainBlock and isSynced bool instead of a GetBlockTemplateResponseMessage (#1538)

cmd/genkeypair/README.md

@@ -0,0 +1,9 @@
+genkeypair
+========
+
+A tool for generating private-key-address pairs.
+
+Note: This tool prints unencrypted private keys and is not recommended for day
+to day use, and is intended mainly for tests.
+
+In order to manage your funds it's recommended to use [kaspawallet](../kaspawallet)

cmd/genkeypair/config.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"github.com/jessevdk/go-flags"
+	"github.com/kaspanet/kaspad/infrastructure/config"
+)
+
+type configFlags struct {
+	config.NetworkFlags
+}
+
+func parseConfig() (*configFlags, error) {
+	cfg := &configFlags{}
+	parser := flags.NewParser(cfg, flags.PrintErrors|flags.HelpFlag)
+	_, err := parser.Parse()
+	if err != nil {
+		return nil, err
+	}
+
+	err = cfg.ResolveNetwork(parser)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}

cmd/genkeypair/main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/util"
+)
+
+func main() {
+	cfg, err := parseConfig()
+	if err != nil {
+		panic(err)
+	}
+
+	privateKey, publicKey, err := libkaspawallet.CreateKeyPair(false)
+	if err != nil {
+		panic(err)
+	}
+
+	addr, err := util.NewAddressPublicKey(publicKey, cfg.NetParams().Prefix)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("Private key: %x\n", privateKey)
+	fmt.Printf("Address: %s\n", addr)
+}

cmd/kaspactl/command_parser.go

@@ -48,6 +48,10 @@ func setField(commandValue reflect.Value, parameterValue reflect.Value, paramete
 }
 
 func stringToValue(parameterDesc *parameterDescription, valueStr string) (reflect.Value, error) {
+	if valueStr == "-" {
+		return reflect.Zero(parameterDesc.typeof), nil
+	}
+
 	var value interface{}
 	var err error
 	switch parameterDesc.typeof.Kind() {

cmd/kaspactl/commands.go

@@ -24,6 +24,7 @@ var commandTypes = []reflect.Type{
 	reflect.TypeOf(protowire.KaspadMessage_GetVirtualSelectedParentBlueScoreRequest{}),
 	reflect.TypeOf(protowire.KaspadMessage_GetVirtualSelectedParentChainFromBlockRequest{}),
 	reflect.TypeOf(protowire.KaspadMessage_ResolveFinalityConflictRequest{}),
+	reflect.TypeOf(protowire.KaspadMessage_EstimateNetworkHashesPerSecondRequest{}),
 
 	reflect.TypeOf(protowire.KaspadMessage_GetBlockTemplateRequest{}),
 	reflect.TypeOf(protowire.KaspadMessage_SubmitBlockRequest{}),

cmd/kaspactl/config.go

@@ -27,7 +27,8 @@ func parseConfig() (*configFlags, error) {
 	}
 	parser := flags.NewParser(cfg, flags.HelpFlag)
 	parser.Usage = "kaspactl [OPTIONS] [COMMAND] [COMMAND PARAMETERS].\n\nCommand can be supplied only if --json is not used." +
-		"\n\nUse `kaspactl --list-commands` to get a list of all commands and their parameters"
+		"\n\nUse `kaspactl --list-commands` to get a list of all commands and their parameters." +
+		"\nFor optional parameters- use '-' without quotes to not pass the parameter.\n"
 	remainingArgs, err := parser.Parse()
 	if err != nil {
 		return nil, err

cmd/kaspaminer/client.go

@@ -5,72 +5,32 @@ import (
 	"github.com/kaspanet/kaspad/infrastructure/logger"
 	"github.com/kaspanet/kaspad/infrastructure/network/rpcclient"
 	"github.com/pkg/errors"
-	"sync"
-	"sync/atomic"
 	"time"
 )
 
 const minerTimeout = 10 * time.Second
 
 type minerClient struct {
-	isReconnecting uint32
-	clientLock     sync.RWMutex
-	rpcClient      *rpcclient.RPCClient
+	*rpcclient.RPCClient
 
 	cfg                        *configFlags
 	blockAddedNotificationChan chan struct{}
 }
 
-func (mc *minerClient) safeRPCClient() *rpcclient.RPCClient {
-	mc.clientLock.RLock()
-	defer mc.clientLock.RUnlock()
-	return mc.rpcClient
-}
-
-func (mc *minerClient) reconnect() {
-	swapped := atomic.CompareAndSwapUint32(&mc.isReconnecting, 0, 1)
-	if !swapped {
-		return
-	}
-
-	defer atomic.StoreUint32(&mc.isReconnecting, 0)
-
-	mc.clientLock.Lock()
-	defer mc.clientLock.Unlock()
-
-	retryDuration := time.Second
-	const maxRetryDuration = time.Minute
-	log.Infof("Reconnecting RPC connection")
-	for {
-		err := mc.connect()
-		if err == nil {
-			return
-		}
-
-		if retryDuration < time.Minute {
-			retryDuration *= 2
-		} else {
-			retryDuration = maxRetryDuration
-		}
-
-		log.Errorf("Got error '%s' while reconnecting. Trying again in %s", err, retryDuration)
-		time.Sleep(retryDuration)
-	}
-}
-
 func (mc *minerClient) connect() error {
 	rpcAddress, err := mc.cfg.NetParams().NormalizeRPCServerAddress(mc.cfg.RPCServer)
 	if err != nil {
 		return err
 	}
-	mc.rpcClient, err = rpcclient.NewRPCClient(rpcAddress)
+	rpcClient, err := rpcclient.NewRPCClient(rpcAddress)
 	if err != nil {
 		return err
 	}
-	mc.rpcClient.SetTimeout(minerTimeout)
-	mc.rpcClient.SetLogger(backendLog, logger.LevelTrace)
+	mc.RPCClient = rpcClient
+	mc.SetTimeout(minerTimeout)
+	mc.SetLogger(backendLog, logger.LevelTrace)
 
-	err = mc.rpcClient.RegisterForBlockAddedNotifications(func(_ *appmessage.BlockAddedNotificationMessage) {
+	err = mc.RegisterForBlockAddedNotifications(func(_ *appmessage.BlockAddedNotificationMessage) {
 		select {
 		case mc.blockAddedNotificationChan <- struct{}{}:
 		default:

cmd/kaspaminer/main.go

@@ -40,7 +40,7 @@ func main() {
 	if err != nil {
 		panic(errors.Wrap(err, "error connecting to the RPC server"))
 	}
-	defer client.safeRPCClient().Disconnect()
+	defer client.Disconnect()
 
 	miningAddr, err := util.DecodeAddress(cfg.MiningAddr, cfg.ActiveNetParams.Prefix)
 	if err != nil {

cmd/kaspaminer/mineloop.go

@@ -6,18 +6,14 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/kaspanet/kaspad/cmd/kaspaminer/templatemanager"
-	"github.com/kaspanet/kaspad/domain/consensus/model/pow"
-	"github.com/kaspanet/kaspad/util/difficulty"
-
-	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
-
-	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
-
 	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/cmd/kaspaminer/templatemanager"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/pow"
 	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
-
 	"github.com/kaspanet/kaspad/util"
+	"github.com/kaspanet/kaspad/util/difficulty"
 	"github.com/pkg/errors"
 )
 
@@ -114,13 +110,17 @@ func logHashRate() {
 
 func handleFoundBlock(client *minerClient, block *externalapi.DomainBlock) error {
 	blockHash := consensushashing.BlockHash(block)
-	log.Infof("Submitting block %s to %s", blockHash, client.safeRPCClient().Address())
+	log.Infof("Submitting block %s to %s", blockHash, client.Address())
 
-	rejectReason, err := client.safeRPCClient().SubmitBlock(block)
+	rejectReason, err := client.SubmitBlock(block)
 	if err != nil {
 		if nativeerrors.Is(err, router.ErrTimeout) {
-			log.Warnf("Got timeout while submitting block %s to %s: %s", blockHash, client.safeRPCClient().Address(), err)
-			client.reconnect()
+			log.Warnf("Got timeout while submitting block %s to %s: %s", blockHash, client.Address(), err)
+			return client.Reconnect()
+		}
+		if nativeerrors.Is(err, router.ErrRouteClosed) {
+			log.Debugf("Got route is closed while requesting block template from %s. "+
+				"The client is most likely reconnecting", client.Address())
 			return nil
 		}
 		if rejectReason == appmessage.RejectReasonIsInIBD {
@@ -129,7 +129,7 @@ func handleFoundBlock(client *minerClient, block *externalapi.DomainBlock) error
 			time.Sleep(waitTime)
 			return nil
 		}
-		return errors.Wrapf(err, "Error submitting block %s to %s", blockHash, client.safeRPCClient().Address())
+		return errors.Wrapf(err, "Error submitting block %s to %s", blockHash, client.Address())
 	}
 	return nil
 }
@@ -188,19 +188,27 @@ func getBlockForMining(mineWhenNotSynced bool) *externalapi.DomainBlock {
 
 func templatesLoop(client *minerClient, miningAddr util.Address, errChan chan error) {
 	getBlockTemplate := func() {
-		template, err := client.safeRPCClient().GetBlockTemplate(miningAddr.String())
+		template, err := client.GetBlockTemplate(miningAddr.String())
 		if nativeerrors.Is(err, router.ErrTimeout) {
-			log.Warnf("Got timeout while requesting block template from %s: %s", client.safeRPCClient().Address(), err)
-			client.reconnect()
+			log.Warnf("Got timeout while requesting block template from %s: %s", client.Address(), err)
+			reconnectErr := client.Reconnect()
+			if reconnectErr != nil {
+				errChan <- reconnectErr
+			}
+			return
+		}
+		if nativeerrors.Is(err, router.ErrRouteClosed) {
+			log.Debugf("Got route is closed while requesting block template from %s. "+
+				"The client is most likely reconnecting", client.Address())
 			return
 		}
 		if err != nil {
-			errChan <- errors.Wrapf(err, "Error getting block template from %s", client.safeRPCClient().Address())
+			errChan <- errors.Wrapf(err, "Error getting block template from %s", client.Address())
 			return
 		}
 		err = templatemanager.Set(template)
 		if err != nil {
-			errChan <- errors.Wrapf(err, "Error setting block template from %s", client.safeRPCClient().Address())
+			errChan <- errors.Wrapf(err, "Error setting block template from %s", client.Address())
 			return
 		}
 	}

cmd/kaspawallet/balance.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/util"
+)
+
+func balance(conf *balanceConfig) error {
+	daemonClient, tearDown, err := client.Connect(conf.DaemonAddress)
+	if err != nil {
+		return err
+	}
+	defer tearDown()
+
+	ctx, cancel := context.WithTimeout(context.Background(), daemonTimeout)
+	defer cancel()
+	response, err := daemonClient.GetBalance(ctx, &pb.GetBalanceRequest{})
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Balance:\t\tKAS %f\n", float64(response.Available)/util.SompiPerKaspa)
+	if response.Pending > 0 {
+		fmt.Printf("Pending balance:\tKAS %f\n", float64(response.Pending)/util.SompiPerKaspa)
+	}
+
+	return nil
+}

cmd/kaspawallet/broadcast.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"context"
+	"encoding/hex"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+)
+
+func broadcast(conf *broadcastConfig) error {
+	daemonClient, tearDown, err := client.Connect(conf.DaemonAddress)
+	if err != nil {
+		return err
+	}
+	defer tearDown()
+
+	ctx, cancel := context.WithTimeout(context.Background(), daemonTimeout)
+	defer cancel()
+
+	transaction, err := hex.DecodeString(conf.Transaction)
+	if err != nil {
+		return err
+	}
+
+	response, err := daemonClient.Broadcast(ctx, &pb.BroadcastRequest{Transaction: transaction})
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Transaction was sent successfully")
+	fmt.Printf("Transaction ID: \t%s\n", response.TxID)
+
+	return nil
+}

cmd/kaspawallet/common.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+const daemonTimeout = 2 * time.Minute
+
+func printErrorAndExit(err error) {
+	fmt.Fprintf(os.Stderr, "%s\n", err)
+	os.Exit(1)
+}

cmd/kaspawallet/config.go

@@ -0,0 +1,229 @@
+package main
+
+import (
+	"github.com/kaspanet/kaspad/infrastructure/config"
+	"github.com/pkg/errors"
+	"os"
+
+	"github.com/jessevdk/go-flags"
+)
+
+const (
+	createSubCmd                    = "create"
+	balanceSubCmd                   = "balance"
+	sendSubCmd                      = "send"
+	createUnsignedTransactionSubCmd = "create-unsigned-transaction"
+	signSubCmd                      = "sign"
+	broadcastSubCmd                 = "broadcast"
+	showAddressSubCmd               = "show-address"
+	dumpUnencryptedDataSubCmd       = "dump-unencrypted-data"
+	startDaemonSubCmd               = "start-daemon"
+)
+
+const (
+	defaultListen    = "localhost:8082"
+	defaultRPCServer = "localhost"
+)
+
+type configFlags struct {
+	config.NetworkFlags
+}
+
+type createConfig struct {
+	KeysFile          string `long:"keys-file" short:"f" description:"Keys file location (default: ~/.kaspawallet/keys.json (*nix), %USERPROFILE%\\AppData\\Local\\Kaspawallet\\key.json (Windows))"`
+	Password          string `long:"password" short:"p" description:"Wallet password"`
+	Yes               bool   `long:"yes" short:"y" description:"Assume \"yes\" to all questions"`
+	MinimumSignatures uint32 `long:"min-signatures" short:"m" description:"Minimum required signatures" default:"1"`
+	NumPrivateKeys    uint32 `long:"num-private-keys" short:"k" description:"Number of private keys" default:"1"`
+	NumPublicKeys     uint32 `long:"num-public-keys" short:"n" description:"Total number of keys" default:"1"`
+	ECDSA             bool   `long:"ecdsa" description:"Create an ECDSA wallet"`
+	Import            bool   `long:"import" short:"i" description:"Import private keys (as opposed to generating them)"`
+	config.NetworkFlags
+}
+
+type balanceConfig struct {
+	DaemonAddress string `long:"daemonaddress" short:"d" description:"Wallet daemon server to connect to (default: localhost:8082)"`
+	config.NetworkFlags
+}
+
+type sendConfig struct {
+	KeysFile      string  `long:"keys-file" short:"f" description:"Keys file location (default: ~/.kaspawallet/keys.json (*nix), %USERPROFILE%\\AppData\\Local\\Kaspawallet\\key.json (Windows))"`
+	Password      string  `long:"password" short:"p" description:"Wallet password"`
+	DaemonAddress string  `long:"daemonaddress" short:"d" description:"Wallet daemon server to connect to (default: localhost:8082)"`
+	ToAddress     string  `long:"to-address" short:"t" description:"The public address to send Kaspa to" required:"true"`
+	SendAmount    float64 `long:"send-amount" short:"v" description:"An amount to send in Kaspa (e.g. 1234.12345678)" required:"true"`
+	config.NetworkFlags
+}
+
+type createUnsignedTransactionConfig struct {
+	DaemonAddress string  `long:"daemonaddress" short:"d" description:"Wallet daemon server to connect to (default: localhost:8082)"`
+	ToAddress     string  `long:"to-address" short:"t" description:"The public address to send Kaspa to" required:"true"`
+	SendAmount    float64 `long:"send-amount" short:"v" description:"An amount to send in Kaspa (e.g. 1234.12345678)" required:"true"`
+	config.NetworkFlags
+}
+
+type signConfig struct {
+	KeysFile    string `long:"keys-file" short:"f" description:"Keys file location (default: ~/.kaspawallet/keys.json (*nix), %USERPROFILE%\\AppData\\Local\\Kaspawallet\\key.json (Windows))"`
+	Password    string `long:"password" short:"p" description:"Wallet password"`
+	Transaction string `long:"transaction" short:"t" description:"The unsigned transaction to sign on (encoded in hex)" required:"true"`
+	config.NetworkFlags
+}
+
+type broadcastConfig struct {
+	DaemonAddress string `long:"daemonaddress" short:"d" description:"Wallet daemon server to connect to (default: localhost:8082)"`
+	Transaction   string `long:"transaction" short:"t" description:"The signed transaction to broadcast (encoded in hex)" required:"true"`
+	config.NetworkFlags
+}
+
+type showAddressConfig struct {
+	DaemonAddress string `long:"daemonaddress" short:"d" description:"Wallet daemon server to connect to (default: localhost:8082)"`
+	config.NetworkFlags
+}
+
+type startDaemonConfig struct {
+	KeysFile  string `long:"keys-file" short:"f" description:"Keys file location (default: ~/.kaspawallet/keys.json (*nix), %USERPROFILE%\\AppData\\Local\\Kaspawallet\\key.json (Windows))"`
+	Password  string `long:"password" short:"p" description:"Wallet password"`
+	RPCServer string `long:"rpcserver" short:"s" description:"RPC server to connect to"`
+	Listen    string `short:"l" long:"listen" description:"Address to listen on (default: 0.0.0.0:8082)"`
+	config.NetworkFlags
+}
+
+type dumpUnencryptedDataConfig struct {
+	KeysFile string `long:"keys-file" short:"f" description:"Keys file location (default: ~/.kaspawallet/keys.json (*nix), %USERPROFILE%\\AppData\\Local\\Kaspawallet\\key.json (Windows))"`
+	Password string `long:"password" short:"p" description:"Wallet password"`
+	Yes      bool   `long:"yes" short:"y" description:"Assume \"yes\" to all questions"`
+	config.NetworkFlags
+}
+
+func parseCommandLine() (subCommand string, config interface{}) {
+	cfg := &configFlags{}
+	parser := flags.NewParser(cfg, flags.PrintErrors|flags.HelpFlag)
+
+	createConf := &createConfig{}
+	parser.AddCommand(createSubCmd, "Creates a new wallet",
+		"Creates a private key and 3 public addresses, one for each of MainNet, TestNet and DevNet", createConf)
+
+	balanceConf := &balanceConfig{DaemonAddress: defaultListen}
+	parser.AddCommand(balanceSubCmd, "Shows the balance of a public address",
+		"Shows the balance for a public address in Kaspa", balanceConf)
+
+	sendConf := &sendConfig{DaemonAddress: defaultListen}
+	parser.AddCommand(sendSubCmd, "Sends a Kaspa transaction to a public address",
+		"Sends a Kaspa transaction to a public address", sendConf)
+
+	createUnsignedTransactionConf := &createUnsignedTransactionConfig{DaemonAddress: defaultListen}
+	parser.AddCommand(createUnsignedTransactionSubCmd, "Create an unsigned Kaspa transaction",
+		"Create an unsigned Kaspa transaction", createUnsignedTransactionConf)
+
+	signConf := &signConfig{}
+	parser.AddCommand(signSubCmd, "Sign the given partially signed transaction",
+		"Sign the given partially signed transaction", signConf)
+
+	broadcastConf := &broadcastConfig{DaemonAddress: defaultListen}
+	parser.AddCommand(broadcastSubCmd, "Broadcast the given transaction",
+		"Broadcast the given transaction", broadcastConf)
+
+	showAddressConf := &showAddressConfig{DaemonAddress: defaultListen}
+	parser.AddCommand(showAddressSubCmd, "Shows the public address of the current wallet",
+		"Shows the public address of the current wallet", showAddressConf)
+
+	dumpUnencryptedDataConf := &dumpUnencryptedDataConfig{}
+	parser.AddCommand(dumpUnencryptedDataSubCmd, "Prints the unencrypted wallet data",
+		"Prints the unencrypted wallet data including its private keys. Anyone that sees it can access "+
+			"the funds. Use only on safe environment.", dumpUnencryptedDataConf)
+
+	startDaemonConf := &startDaemonConfig{
+		RPCServer: defaultRPCServer,
+		Listen:    defaultListen,
+	}
+	parser.AddCommand(startDaemonSubCmd, "Start the wallet daemon", "Start the wallet daemon", startDaemonConf)
+
+	_, err := parser.Parse()
+
+	if err != nil {
+		var flagsErr *flags.Error
+		if ok := errors.As(err, &flagsErr); ok && flagsErr.Type == flags.ErrHelp {
+			os.Exit(0)
+		} else {
+			os.Exit(1)
+		}
+		return "", nil
+	}
+
+	switch parser.Command.Active.Name {
+	case createSubCmd:
+		combineNetworkFlags(&createConf.NetworkFlags, &cfg.NetworkFlags)
+		err := createConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = createConf
+	case balanceSubCmd:
+		combineNetworkFlags(&balanceConf.NetworkFlags, &cfg.NetworkFlags)
+		err := balanceConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = balanceConf
+	case sendSubCmd:
+		combineNetworkFlags(&sendConf.NetworkFlags, &cfg.NetworkFlags)
+		err := sendConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = sendConf
+	case createUnsignedTransactionSubCmd:
+		combineNetworkFlags(&createUnsignedTransactionConf.NetworkFlags, &cfg.NetworkFlags)
+		err := createUnsignedTransactionConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = createUnsignedTransactionConf
+	case signSubCmd:
+		combineNetworkFlags(&signConf.NetworkFlags, &cfg.NetworkFlags)
+		err := signConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = signConf
+	case broadcastSubCmd:
+		combineNetworkFlags(&broadcastConf.NetworkFlags, &cfg.NetworkFlags)
+		err := broadcastConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = broadcastConf
+	case showAddressSubCmd:
+		combineNetworkFlags(&showAddressConf.NetworkFlags, &cfg.NetworkFlags)
+		err := showAddressConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = showAddressConf
+	case dumpUnencryptedDataSubCmd:
+		combineNetworkFlags(&dumpUnencryptedDataConf.NetworkFlags, &cfg.NetworkFlags)
+		err := dumpUnencryptedDataConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = dumpUnencryptedDataConf
+	case startDaemonSubCmd:
+		combineNetworkFlags(&startDaemonConf.NetworkFlags, &cfg.NetworkFlags)
+		err := startDaemonConf.ResolveNetwork(parser)
+		if err != nil {
+			printErrorAndExit(err)
+		}
+		config = startDaemonConf
+	}
+
+	return parser.Command.Active.Name, config
+}
+
+func combineNetworkFlags(dst, src *config.NetworkFlags) {
+	dst.Testnet = dst.Testnet || src.Testnet
+	dst.Simnet = dst.Simnet || src.Simnet
+	dst.Devnet = dst.Devnet || src.Devnet
+	if dst.OverrideDAGParamsFile == "" {
+		dst.OverrideDAGParamsFile = src.OverrideDAGParamsFile
+	}
+}

cmd/kaspawallet/create.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/utils"
+	"github.com/pkg/errors"
+	"os"
+
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/keys"
+)
+
+func create(conf *createConfig) error {
+	var encryptedMnemonics []*keys.EncryptedMnemonic
+	var signerExtendedPublicKeys []string
+	var err error
+	isMultisig := conf.NumPublicKeys > 1
+	if !conf.Import {
+		encryptedMnemonics, signerExtendedPublicKeys, err = keys.CreateMnemonics(conf.NetParams(), conf.NumPrivateKeys, conf.Password, isMultisig)
+	} else {
+		encryptedMnemonics, signerExtendedPublicKeys, err = keys.ImportMnemonics(conf.NetParams(), conf.NumPrivateKeys, conf.Password, isMultisig)
+	}
+	if err != nil {
+		return err
+	}
+
+	for i, extendedPublicKey := range signerExtendedPublicKeys {
+		fmt.Printf("Extended public key of mnemonic #%d:\n%s\n\n", i+1, extendedPublicKey)
+	}
+
+	extendedPublicKeys := make([]string, conf.NumPrivateKeys, conf.NumPublicKeys)
+	copy(extendedPublicKeys, signerExtendedPublicKeys)
+	reader := bufio.NewReader(os.Stdin)
+	for i := conf.NumPrivateKeys; i < conf.NumPublicKeys; i++ {
+		fmt.Printf("Enter public key #%d here:\n", i+1)
+		extendedPublicKey, err := utils.ReadLine(reader)
+		if err != nil {
+			return err
+		}
+
+		_, err = bip32.DeserializeExtendedKey(string(extendedPublicKey))
+		if err != nil {
+			return errors.Wrapf(err, "%s is invalid extended public key", string(extendedPublicKey))
+		}
+
+		fmt.Println()
+
+		extendedPublicKeys = append(extendedPublicKeys, string(extendedPublicKey))
+	}
+
+	cosignerIndex, err := libkaspawallet.MinimumCosignerIndex(signerExtendedPublicKeys, extendedPublicKeys)
+	if err != nil {
+		return err
+	}
+
+	file := keys.File{
+		EncryptedMnemonics: encryptedMnemonics,
+		ExtendedPublicKeys: extendedPublicKeys,
+		MinimumSignatures:  conf.MinimumSignatures,
+		CosignerIndex:      cosignerIndex,
+		ECDSA:              conf.ECDSA,
+	}
+
+	err = file.SetPath(conf.NetParams(), conf.KeysFile, conf.Yes)
+	if err != nil {
+		return err
+	}
+
+	err = file.Save()
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Wrote the keys into %s\n", file.Path())
+	return nil
+}

cmd/kaspawallet/create_unsigned_tx.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"context"
+	"encoding/hex"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/util"
+)
+
+func createUnsignedTransaction(conf *createUnsignedTransactionConfig) error {
+	daemonClient, tearDown, err := client.Connect(conf.DaemonAddress)
+	if err != nil {
+		return err
+	}
+	defer tearDown()
+
+	ctx, cancel := context.WithTimeout(context.Background(), daemonTimeout)
+	defer cancel()
+
+	sendAmountSompi := uint64(conf.SendAmount * util.SompiPerKaspa)
+	response, err := daemonClient.CreateUnsignedTransaction(ctx, &pb.CreateUnsignedTransactionRequest{
+		Address: conf.ToAddress,
+		Amount:  sendAmountSompi,
+	})
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Created unsigned transaction")
+	fmt.Println(hex.EncodeToString(response.UnsignedTransaction))
+	return nil
+}

cmd/kaspawallet/daemon/client/client.go

@@ -0,0 +1,18 @@
+package client
+
+import (
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"google.golang.org/grpc"
+)
+
+// Connect connects to the kaspawalletd server, and returns the client instance
+func Connect(address string) (pb.KaspawalletdClient, func(), error) {
+	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return pb.NewKaspawalletdClient(conn), func() {
+		conn.Close()
+	}, nil
+}

cmd/kaspawallet/daemon/pb/generate.go

@@ -0,0 +1,3 @@
+//go:generate protoc --go_out=. --go-grpc_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative kaspawalletd.proto
+
+package pb

cmd/kaspawallet/daemon/pb/kaspawalletd.pb.go

@@ -0,0 +1,730 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.12.3
+// source: kaspawalletd.proto
+
+package pb
+
+import (
+	proto "github.com/golang/protobuf/proto"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type GetBalanceRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *GetBalanceRequest) Reset() {
+	*x = GetBalanceRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetBalanceRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetBalanceRequest) ProtoMessage() {}
+
+func (x *GetBalanceRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetBalanceRequest.ProtoReflect.Descriptor instead.
+func (*GetBalanceRequest) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{0}
+}
+
+type GetBalanceResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Available uint64 `protobuf:"varint,1,opt,name=available,proto3" json:"available,omitempty"`
+	Pending   uint64 `protobuf:"varint,2,opt,name=pending,proto3" json:"pending,omitempty"`
+}
+
+func (x *GetBalanceResponse) Reset() {
+	*x = GetBalanceResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetBalanceResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetBalanceResponse) ProtoMessage() {}
+
+func (x *GetBalanceResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetBalanceResponse.ProtoReflect.Descriptor instead.
+func (*GetBalanceResponse) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *GetBalanceResponse) GetAvailable() uint64 {
+	if x != nil {
+		return x.Available
+	}
+	return 0
+}
+
+func (x *GetBalanceResponse) GetPending() uint64 {
+	if x != nil {
+		return x.Pending
+	}
+	return 0
+}
+
+type CreateUnsignedTransactionRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	Amount  uint64 `protobuf:"varint,2,opt,name=amount,proto3" json:"amount,omitempty"`
+}
+
+func (x *CreateUnsignedTransactionRequest) Reset() {
+	*x = CreateUnsignedTransactionRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CreateUnsignedTransactionRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateUnsignedTransactionRequest) ProtoMessage() {}
+
+func (x *CreateUnsignedTransactionRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreateUnsignedTransactionRequest.ProtoReflect.Descriptor instead.
+func (*CreateUnsignedTransactionRequest) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *CreateUnsignedTransactionRequest) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+func (x *CreateUnsignedTransactionRequest) GetAmount() uint64 {
+	if x != nil {
+		return x.Amount
+	}
+	return 0
+}
+
+type CreateUnsignedTransactionResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	UnsignedTransaction []byte `protobuf:"bytes,1,opt,name=unsignedTransaction,proto3" json:"unsignedTransaction,omitempty"`
+}
+
+func (x *CreateUnsignedTransactionResponse) Reset() {
+	*x = CreateUnsignedTransactionResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CreateUnsignedTransactionResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateUnsignedTransactionResponse) ProtoMessage() {}
+
+func (x *CreateUnsignedTransactionResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreateUnsignedTransactionResponse.ProtoReflect.Descriptor instead.
+func (*CreateUnsignedTransactionResponse) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *CreateUnsignedTransactionResponse) GetUnsignedTransaction() []byte {
+	if x != nil {
+		return x.UnsignedTransaction
+	}
+	return nil
+}
+
+type GetReceiveAddressRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *GetReceiveAddressRequest) Reset() {
+	*x = GetReceiveAddressRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetReceiveAddressRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetReceiveAddressRequest) ProtoMessage() {}
+
+func (x *GetReceiveAddressRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetReceiveAddressRequest.ProtoReflect.Descriptor instead.
+func (*GetReceiveAddressRequest) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{4}
+}
+
+type GetReceiveAddressResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+}
+
+func (x *GetReceiveAddressResponse) Reset() {
+	*x = GetReceiveAddressResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetReceiveAddressResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetReceiveAddressResponse) ProtoMessage() {}
+
+func (x *GetReceiveAddressResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetReceiveAddressResponse.ProtoReflect.Descriptor instead.
+func (*GetReceiveAddressResponse) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *GetReceiveAddressResponse) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+type BroadcastRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Transaction []byte `protobuf:"bytes,1,opt,name=transaction,proto3" json:"transaction,omitempty"`
+}
+
+func (x *BroadcastRequest) Reset() {
+	*x = BroadcastRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BroadcastRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BroadcastRequest) ProtoMessage() {}
+
+func (x *BroadcastRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use BroadcastRequest.ProtoReflect.Descriptor instead.
+func (*BroadcastRequest) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *BroadcastRequest) GetTransaction() []byte {
+	if x != nil {
+		return x.Transaction
+	}
+	return nil
+}
+
+type BroadcastResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	TxID string `protobuf:"bytes,1,opt,name=txID,proto3" json:"txID,omitempty"`
+}
+
+func (x *BroadcastResponse) Reset() {
+	*x = BroadcastResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BroadcastResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BroadcastResponse) ProtoMessage() {}
+
+func (x *BroadcastResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use BroadcastResponse.ProtoReflect.Descriptor instead.
+func (*BroadcastResponse) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *BroadcastResponse) GetTxID() string {
+	if x != nil {
+		return x.TxID
+	}
+	return ""
+}
+
+type ShutdownRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *ShutdownRequest) Reset() {
+	*x = ShutdownRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ShutdownRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ShutdownRequest) ProtoMessage() {}
+
+func (x *ShutdownRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ShutdownRequest.ProtoReflect.Descriptor instead.
+func (*ShutdownRequest) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{8}
+}
+
+type ShutdownResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *ShutdownResponse) Reset() {
+	*x = ShutdownResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_kaspawalletd_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ShutdownResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ShutdownResponse) ProtoMessage() {}
+
+func (x *ShutdownResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_kaspawalletd_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ShutdownResponse.ProtoReflect.Descriptor instead.
+func (*ShutdownResponse) Descriptor() ([]byte, []int) {
+	return file_kaspawalletd_proto_rawDescGZIP(), []int{9}
+}
+
+var File_kaspawalletd_proto protoreflect.FileDescriptor
+
+var file_kaspawalletd_proto_rawDesc = []byte{
+	0x0a, 0x12, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x77, 0x61, 0x6c, 0x6c, 0x65, 0x74, 0x64, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x22, 0x13, 0x0a, 0x11, 0x47, 0x65, 0x74, 0x42, 0x61, 0x6c, 0x61, 0x6e,
+	0x63, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x22, 0x4c, 0x0a, 0x12, 0x47, 0x65, 0x74,
+	0x42, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12,
+	0x1c, 0x0a, 0x09, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, 0x62, 0x6c, 0x65, 0x18, 0x01, 0x20, 0x01,
+	0x28, 0x04, 0x52, 0x09, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, 0x62, 0x6c, 0x65, 0x12, 0x18, 0x0a,
+	0x07, 0x70, 0x65, 0x6e, 0x64, 0x69, 0x6e, 0x67, 0x18, 0x02, 0x20, 0x01, 0x28, 0x04, 0x52, 0x07,
+	0x70, 0x65, 0x6e, 0x64, 0x69, 0x6e, 0x67, 0x22, 0x54, 0x0a, 0x20, 0x43, 0x72, 0x65, 0x61, 0x74,
+	0x65, 0x55, 0x6e, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63,
+	0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x18, 0x0a, 0x07, 0x61,
+	0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x61, 0x64,
+	0x64, 0x72, 0x65, 0x73, 0x73, 0x12, 0x16, 0x0a, 0x06, 0x61, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x04, 0x52, 0x06, 0x61, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0x55, 0x0a,
+	0x21, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x55, 0x6e, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54,
+	0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
+	0x73, 0x65, 0x12, 0x30, 0x0a, 0x13, 0x75, 0x6e, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72,
+	0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52,
+	0x13, 0x75, 0x6e, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63,
+	0x74, 0x69, 0x6f, 0x6e, 0x22, 0x1a, 0x0a, 0x18, 0x47, 0x65, 0x74, 0x52, 0x65, 0x63, 0x65, 0x69,
+	0x76, 0x65, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x22, 0x35, 0x0a, 0x19, 0x47, 0x65, 0x74, 0x52, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x41, 0x64,
+	0x64, 0x72, 0x65, 0x73, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x18, 0x0a,
+	0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07,
+	0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x22, 0x34, 0x0a, 0x10, 0x42, 0x72, 0x6f, 0x61, 0x64,
+	0x63, 0x61, 0x73, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x20, 0x0a, 0x0b, 0x74,
+	0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c,
+	0x52, 0x0b, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x22, 0x27, 0x0a,
+	0x11, 0x42, 0x72, 0x6f, 0x61, 0x64, 0x63, 0x61, 0x73, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
+	0x73, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x78, 0x49, 0x44, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x04, 0x74, 0x78, 0x49, 0x44, 0x22, 0x11, 0x0a, 0x0f, 0x53, 0x68, 0x75, 0x74, 0x64, 0x6f,
+	0x77, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x22, 0x12, 0x0a, 0x10, 0x53, 0x68, 0x75,
+	0x74, 0x64, 0x6f, 0x77, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x32, 0xe4, 0x02,
+	0x0a, 0x0c, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x77, 0x61, 0x6c, 0x6c, 0x65, 0x74, 0x64, 0x12, 0x37,
+	0x0a, 0x0a, 0x47, 0x65, 0x74, 0x42, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x65, 0x12, 0x12, 0x2e, 0x47,
+	0x65, 0x74, 0x42, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x13, 0x2e, 0x47, 0x65, 0x74, 0x42, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x65, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x64, 0x0a, 0x19, 0x43, 0x72, 0x65, 0x61, 0x74,
+	0x65, 0x55, 0x6e, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63,
+	0x74, 0x69, 0x6f, 0x6e, 0x12, 0x21, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x55, 0x6e, 0x73,
+	0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e,
+	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x22, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65,
+	0x55, 0x6e, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74,
+	0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x4c, 0x0a,
+	0x11, 0x47, 0x65, 0x74, 0x52, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x41, 0x64, 0x64, 0x72, 0x65,
+	0x73, 0x73, 0x12, 0x19, 0x2e, 0x47, 0x65, 0x74, 0x52, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x41,
+	0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1a, 0x2e,
+	0x47, 0x65, 0x74, 0x52, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73,
+	0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x31, 0x0a, 0x08, 0x53,
+	0x68, 0x75, 0x74, 0x64, 0x6f, 0x77, 0x6e, 0x12, 0x10, 0x2e, 0x53, 0x68, 0x75, 0x74, 0x64, 0x6f,
+	0x77, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x11, 0x2e, 0x53, 0x68, 0x75, 0x74,
+	0x64, 0x6f, 0x77, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x34,
+	0x0a, 0x09, 0x42, 0x72, 0x6f, 0x61, 0x64, 0x63, 0x61, 0x73, 0x74, 0x12, 0x11, 0x2e, 0x42, 0x72,
+	0x6f, 0x61, 0x64, 0x63, 0x61, 0x73, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x12,
+	0x2e, 0x42, 0x72, 0x6f, 0x61, 0x64, 0x63, 0x61, 0x73, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
+	0x73, 0x65, 0x22, 0x00, 0x42, 0x36, 0x5a, 0x34, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
+	0x6f, 0x6d, 0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x6e, 0x65, 0x74, 0x2f, 0x6b, 0x61, 0x73, 0x70,
+	0x61, 0x64, 0x2f, 0x63, 0x6d, 0x64, 0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x77, 0x61, 0x6c, 0x6c,
+	0x65, 0x74, 0x2f, 0x64, 0x61, 0x65, 0x6d, 0x6f, 0x6e, 0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_kaspawalletd_proto_rawDescOnce sync.Once
+	file_kaspawalletd_proto_rawDescData = file_kaspawalletd_proto_rawDesc
+)
+
+func file_kaspawalletd_proto_rawDescGZIP() []byte {
+	file_kaspawalletd_proto_rawDescOnce.Do(func() {
+		file_kaspawalletd_proto_rawDescData = protoimpl.X.CompressGZIP(file_kaspawalletd_proto_rawDescData)
+	})
+	return file_kaspawalletd_proto_rawDescData
+}
+
+var file_kaspawalletd_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_kaspawalletd_proto_goTypes = []interface{}{
+	(*GetBalanceRequest)(nil),                 // 0: GetBalanceRequest
+	(*GetBalanceResponse)(nil),                // 1: GetBalanceResponse
+	(*CreateUnsignedTransactionRequest)(nil),  // 2: CreateUnsignedTransactionRequest
+	(*CreateUnsignedTransactionResponse)(nil), // 3: CreateUnsignedTransactionResponse
+	(*GetReceiveAddressRequest)(nil),          // 4: GetReceiveAddressRequest
+	(*GetReceiveAddressResponse)(nil),         // 5: GetReceiveAddressResponse
+	(*BroadcastRequest)(nil),                  // 6: BroadcastRequest
+	(*BroadcastResponse)(nil),                 // 7: BroadcastResponse
+	(*ShutdownRequest)(nil),                   // 8: ShutdownRequest
+	(*ShutdownResponse)(nil),                  // 9: ShutdownResponse
+}
+var file_kaspawalletd_proto_depIdxs = []int32{
+	0, // 0: kaspawalletd.GetBalance:input_type -> GetBalanceRequest
+	2, // 1: kaspawalletd.CreateUnsignedTransaction:input_type -> CreateUnsignedTransactionRequest
+	4, // 2: kaspawalletd.GetReceiveAddress:input_type -> GetReceiveAddressRequest
+	8, // 3: kaspawalletd.Shutdown:input_type -> ShutdownRequest
+	6, // 4: kaspawalletd.Broadcast:input_type -> BroadcastRequest
+	1, // 5: kaspawalletd.GetBalance:output_type -> GetBalanceResponse
+	3, // 6: kaspawalletd.CreateUnsignedTransaction:output_type -> CreateUnsignedTransactionResponse
+	5, // 7: kaspawalletd.GetReceiveAddress:output_type -> GetReceiveAddressResponse
+	9, // 8: kaspawalletd.Shutdown:output_type -> ShutdownResponse
+	7, // 9: kaspawalletd.Broadcast:output_type -> BroadcastResponse
+	5, // [5:10] is the sub-list for method output_type
+	0, // [0:5] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_kaspawalletd_proto_init() }
+func file_kaspawalletd_proto_init() {
+	if File_kaspawalletd_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_kaspawalletd_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetBalanceRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetBalanceResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CreateUnsignedTransactionRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CreateUnsignedTransactionResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetReceiveAddressRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetReceiveAddressResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BroadcastRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BroadcastResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ShutdownRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_kaspawalletd_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ShutdownResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_kaspawalletd_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   10,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_kaspawalletd_proto_goTypes,
+		DependencyIndexes: file_kaspawalletd_proto_depIdxs,
+		MessageInfos:      file_kaspawalletd_proto_msgTypes,
+	}.Build()
+	File_kaspawalletd_proto = out.File
+	file_kaspawalletd_proto_rawDesc = nil
+	file_kaspawalletd_proto_goTypes = nil
+	file_kaspawalletd_proto_depIdxs = nil
+}

cmd/kaspawallet/daemon/pb/kaspawalletd.proto

@@ -0,0 +1,49 @@
+syntax = "proto3";
+
+option go_package = "github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb";
+
+service kaspawalletd {
+  rpc GetBalance (GetBalanceRequest) returns (GetBalanceResponse) {}
+  rpc CreateUnsignedTransaction (CreateUnsignedTransactionRequest) returns (CreateUnsignedTransactionResponse) {}
+  rpc GetReceiveAddress (GetReceiveAddressRequest) returns (GetReceiveAddressResponse) {}
+  rpc Shutdown (ShutdownRequest) returns (ShutdownResponse) {}
+  rpc Broadcast (BroadcastRequest) returns (BroadcastResponse) {}
+}
+
+message GetBalanceRequest {
+}
+
+message GetBalanceResponse {
+  uint64 available = 1;
+  uint64 pending = 2;
+}
+
+message CreateUnsignedTransactionRequest {
+  string address = 1;
+  uint64 amount = 2;
+}
+
+message CreateUnsignedTransactionResponse {
+  bytes unsignedTransaction = 1;
+}
+
+message GetReceiveAddressRequest {
+}
+
+message GetReceiveAddressResponse {
+  string address = 1;
+}
+
+message BroadcastRequest {
+  bytes transaction = 1;
+}
+
+message BroadcastResponse {
+  string txID = 1;
+}
+
+message ShutdownRequest {
+}
+
+message ShutdownResponse {
+}

cmd/kaspawallet/daemon/pb/kaspawalletd_grpc.pb.go

@@ -0,0 +1,234 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+
+package pb
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion6
+
+// KaspawalletdClient is the client API for Kaspawalletd service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type KaspawalletdClient interface {
+	GetBalance(ctx context.Context, in *GetBalanceRequest, opts ...grpc.CallOption) (*GetBalanceResponse, error)
+	CreateUnsignedTransaction(ctx context.Context, in *CreateUnsignedTransactionRequest, opts ...grpc.CallOption) (*CreateUnsignedTransactionResponse, error)
+	GetReceiveAddress(ctx context.Context, in *GetReceiveAddressRequest, opts ...grpc.CallOption) (*GetReceiveAddressResponse, error)
+	Shutdown(ctx context.Context, in *ShutdownRequest, opts ...grpc.CallOption) (*ShutdownResponse, error)
+	Broadcast(ctx context.Context, in *BroadcastRequest, opts ...grpc.CallOption) (*BroadcastResponse, error)
+}
+
+type kaspawalletdClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewKaspawalletdClient(cc grpc.ClientConnInterface) KaspawalletdClient {
+	return &kaspawalletdClient{cc}
+}
+
+func (c *kaspawalletdClient) GetBalance(ctx context.Context, in *GetBalanceRequest, opts ...grpc.CallOption) (*GetBalanceResponse, error) {
+	out := new(GetBalanceResponse)
+	err := c.cc.Invoke(ctx, "/kaspawalletd/GetBalance", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *kaspawalletdClient) CreateUnsignedTransaction(ctx context.Context, in *CreateUnsignedTransactionRequest, opts ...grpc.CallOption) (*CreateUnsignedTransactionResponse, error) {
+	out := new(CreateUnsignedTransactionResponse)
+	err := c.cc.Invoke(ctx, "/kaspawalletd/CreateUnsignedTransaction", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *kaspawalletdClient) GetReceiveAddress(ctx context.Context, in *GetReceiveAddressRequest, opts ...grpc.CallOption) (*GetReceiveAddressResponse, error) {
+	out := new(GetReceiveAddressResponse)
+	err := c.cc.Invoke(ctx, "/kaspawalletd/GetReceiveAddress", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *kaspawalletdClient) Shutdown(ctx context.Context, in *ShutdownRequest, opts ...grpc.CallOption) (*ShutdownResponse, error) {
+	out := new(ShutdownResponse)
+	err := c.cc.Invoke(ctx, "/kaspawalletd/Shutdown", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *kaspawalletdClient) Broadcast(ctx context.Context, in *BroadcastRequest, opts ...grpc.CallOption) (*BroadcastResponse, error) {
+	out := new(BroadcastResponse)
+	err := c.cc.Invoke(ctx, "/kaspawalletd/Broadcast", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// KaspawalletdServer is the server API for Kaspawalletd service.
+// All implementations must embed UnimplementedKaspawalletdServer
+// for forward compatibility
+type KaspawalletdServer interface {
+	GetBalance(context.Context, *GetBalanceRequest) (*GetBalanceResponse, error)
+	CreateUnsignedTransaction(context.Context, *CreateUnsignedTransactionRequest) (*CreateUnsignedTransactionResponse, error)
+	GetReceiveAddress(context.Context, *GetReceiveAddressRequest) (*GetReceiveAddressResponse, error)
+	Shutdown(context.Context, *ShutdownRequest) (*ShutdownResponse, error)
+	Broadcast(context.Context, *BroadcastRequest) (*BroadcastResponse, error)
+	mustEmbedUnimplementedKaspawalletdServer()
+}
+
+// UnimplementedKaspawalletdServer must be embedded to have forward compatible implementations.
+type UnimplementedKaspawalletdServer struct {
+}
+
+func (*UnimplementedKaspawalletdServer) GetBalance(context.Context, *GetBalanceRequest) (*GetBalanceResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetBalance not implemented")
+}
+func (*UnimplementedKaspawalletdServer) CreateUnsignedTransaction(context.Context, *CreateUnsignedTransactionRequest) (*CreateUnsignedTransactionResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CreateUnsignedTransaction not implemented")
+}
+func (*UnimplementedKaspawalletdServer) GetReceiveAddress(context.Context, *GetReceiveAddressRequest) (*GetReceiveAddressResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetReceiveAddress not implemented")
+}
+func (*UnimplementedKaspawalletdServer) Shutdown(context.Context, *ShutdownRequest) (*ShutdownResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Shutdown not implemented")
+}
+func (*UnimplementedKaspawalletdServer) Broadcast(context.Context, *BroadcastRequest) (*BroadcastResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Broadcast not implemented")
+}
+func (*UnimplementedKaspawalletdServer) mustEmbedUnimplementedKaspawalletdServer() {}
+
+func RegisterKaspawalletdServer(s *grpc.Server, srv KaspawalletdServer) {
+	s.RegisterService(&_Kaspawalletd_serviceDesc, srv)
+}
+
+func _Kaspawalletd_GetBalance_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetBalanceRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(KaspawalletdServer).GetBalance(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/kaspawalletd/GetBalance",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(KaspawalletdServer).GetBalance(ctx, req.(*GetBalanceRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Kaspawalletd_CreateUnsignedTransaction_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateUnsignedTransactionRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(KaspawalletdServer).CreateUnsignedTransaction(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/kaspawalletd/CreateUnsignedTransaction",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(KaspawalletdServer).CreateUnsignedTransaction(ctx, req.(*CreateUnsignedTransactionRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Kaspawalletd_GetReceiveAddress_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetReceiveAddressRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(KaspawalletdServer).GetReceiveAddress(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/kaspawalletd/GetReceiveAddress",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(KaspawalletdServer).GetReceiveAddress(ctx, req.(*GetReceiveAddressRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Kaspawalletd_Shutdown_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ShutdownRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(KaspawalletdServer).Shutdown(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/kaspawalletd/Shutdown",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(KaspawalletdServer).Shutdown(ctx, req.(*ShutdownRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Kaspawalletd_Broadcast_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(BroadcastRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(KaspawalletdServer).Broadcast(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/kaspawalletd/Broadcast",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(KaspawalletdServer).Broadcast(ctx, req.(*BroadcastRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _Kaspawalletd_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "kaspawalletd",
+	HandlerType: (*KaspawalletdServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "GetBalance",
+			Handler:    _Kaspawalletd_GetBalance_Handler,
+		},
+		{
+			MethodName: "CreateUnsignedTransaction",
+			Handler:    _Kaspawalletd_CreateUnsignedTransaction_Handler,
+		},
+		{
+			MethodName: "GetReceiveAddress",
+			Handler:    _Kaspawalletd_GetReceiveAddress_Handler,
+		},
+		{
+			MethodName: "Shutdown",
+			Handler:    _Kaspawalletd_Shutdown_Handler,
+		},
+		{
+			MethodName: "Broadcast",
+			Handler:    _Kaspawalletd_Broadcast_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "kaspawalletd.proto",
+}

cmd/kaspawallet/daemon/server/address.go

@@ -0,0 +1,83 @@
+package server
+
+import (
+	"context"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/util"
+	"github.com/pkg/errors"
+)
+
+func (s *server) changeAddress() (util.Address, error) {
+	err := s.keysFile.SetLastUsedInternalIndex(s.keysFile.LastUsedInternalIndex() + 1)
+	if err != nil {
+		return nil, err
+	}
+
+	err = s.keysFile.Save()
+	if err != nil {
+		return nil, err
+	}
+
+	walletAddr := &walletAddress{
+		index:         s.keysFile.LastUsedInternalIndex(),
+		cosignerIndex: s.keysFile.CosignerIndex,
+		keyChain:      internalKeychain,
+	}
+	path := s.walletAddressPath(walletAddr)
+	return libkaspawallet.Address(s.params, s.keysFile.ExtendedPublicKeys, s.keysFile.MinimumSignatures, path, s.keysFile.ECDSA)
+}
+
+func (s *server) GetReceiveAddress(_ context.Context, request *pb.GetReceiveAddressRequest) (*pb.GetReceiveAddressResponse, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	if !s.isSynced() {
+		return nil, errors.New("server is not synced")
+	}
+
+	err := s.keysFile.SetLastUsedExternalIndex(s.keysFile.LastUsedExternalIndex() + 1)
+	if err != nil {
+		return nil, err
+	}
+
+	err = s.keysFile.Save()
+	if err != nil {
+		return nil, err
+	}
+
+	walletAddr := &walletAddress{
+		index:         s.keysFile.LastUsedExternalIndex(),
+		cosignerIndex: s.keysFile.CosignerIndex,
+		keyChain:      externalKeychain,
+	}
+	path := s.walletAddressPath(walletAddr)
+	address, err := libkaspawallet.Address(s.params, s.keysFile.ExtendedPublicKeys, s.keysFile.MinimumSignatures, path, s.keysFile.ECDSA)
+	if err != nil {
+		return nil, err
+	}
+
+	return &pb.GetReceiveAddressResponse{Address: address.String()}, nil
+}
+
+func (s *server) walletAddressString(wAddr *walletAddress) (string, error) {
+	path := s.walletAddressPath(wAddr)
+	addr, err := libkaspawallet.Address(s.params, s.keysFile.ExtendedPublicKeys, s.keysFile.MinimumSignatures, path, s.keysFile.ECDSA)
+	if err != nil {
+		return "", err
+	}
+
+	return addr.String(), nil
+}
+
+func (s *server) walletAddressPath(wAddr *walletAddress) string {
+	if s.isMultisig() {
+		return fmt.Sprintf("m/%d/%d/%d", wAddr.cosignerIndex, wAddr.keyChain, wAddr.index)
+	}
+	return fmt.Sprintf("m/%d/%d", wAddr.keyChain, wAddr.index)
+}
+
+func (s *server) isMultisig() bool {
+	return len(s.keysFile.ExtendedPublicKeys) > 1
+}

cmd/kaspawallet/daemon/server/balance.go

@@ -0,0 +1,37 @@
+package server
+
+import (
+	"context"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+)
+
+func (s *server) GetBalance(_ context.Context, _ *pb.GetBalanceRequest) (*pb.GetBalanceResponse, error) {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	dagInfo, err := s.rpcClient.GetBlockDAGInfo()
+	if err != nil {
+		return nil, err
+	}
+
+	var availableBalance, pendingBalance uint64
+	for _, entry := range s.utxos {
+		if isUTXOSpendable(entry, dagInfo.VirtualDAAScore, s.params.BlockCoinbaseMaturity) {
+			availableBalance += entry.UTXOEntry.Amount()
+		} else {
+			pendingBalance += entry.UTXOEntry.Amount()
+		}
+	}
+
+	return &pb.GetBalanceResponse{
+		Available: availableBalance,
+		Pending:   pendingBalance,
+	}, nil
+}
+
+func isUTXOSpendable(entry *walletUTXO, virtualDAAScore uint64, coinbaseMaturity uint64) bool {
+	if !entry.UTXOEntry.IsCoinbase() {
+		return true
+	}
+	return entry.UTXOEntry.BlockDAAScore()+coinbaseMaturity < virtualDAAScore
+}

cmd/kaspawallet/daemon/server/broadcast.go

@@ -0,0 +1,33 @@
+package server
+
+import (
+	"context"
+	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/infrastructure/network/rpcclient"
+	"github.com/pkg/errors"
+)
+
+func (s *server) Broadcast(_ context.Context, request *pb.BroadcastRequest) (*pb.BroadcastResponse, error) {
+	tx, err := libkaspawallet.ExtractTransaction(request.Transaction, s.keysFile.ECDSA)
+	if err != nil {
+		return nil, err
+	}
+
+	txID, err := sendTransaction(s.rpcClient, tx)
+	if err != nil {
+		return nil, err
+	}
+
+	return &pb.BroadcastResponse{TxID: txID}, nil
+}
+
+func sendTransaction(client *rpcclient.RPCClient, tx *externalapi.DomainTransaction) (string, error) {
+	submitTransactionResponse, err := client.SubmitTransaction(appmessage.DomainTransactionToRPCTransaction(tx))
+	if err != nil {
+		return "", errors.Wrapf(err, "error submitting transaction")
+	}
+	return submitTransactionResponse.TransactionID, nil
+}

cmd/kaspawallet/daemon/server/common.go

@@ -0,0 +1,15 @@
+package server
+
+import "github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+
+type walletUTXO struct {
+	Outpoint  *externalapi.DomainOutpoint
+	UTXOEntry externalapi.UTXOEntry
+	address   *walletAddress
+}
+
+type walletAddress struct {
+	index         uint32
+	cosignerIndex uint32
+	keyChain      uint8
+}

cmd/kaspawallet/daemon/server/create_unsigned_transaction.go

@@ -0,0 +1,95 @@
+package server
+
+import (
+	"context"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/util"
+	"github.com/pkg/errors"
+)
+
+func (s *server) CreateUnsignedTransaction(_ context.Context, request *pb.CreateUnsignedTransactionRequest) (*pb.CreateUnsignedTransactionResponse, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	if !s.isSynced() {
+		return nil, errors.New("server is not synced")
+	}
+
+	err := s.refreshExistingUTXOs()
+	if err != nil {
+		return nil, err
+	}
+
+	toAddress, err := util.DecodeAddress(request.Address, s.params.Prefix)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: Implement a better fee estimation mechanism
+	const feePerInput = 1000
+	selectedUTXOs, changeSompi, err := s.selectUTXOs(request.Amount, feePerInput)
+	if err != nil {
+		return nil, err
+	}
+
+	changeAddress, err := s.changeAddress()
+	if err != nil {
+		return nil, err
+	}
+
+	unsignedTransaction, err := libkaspawallet.CreateUnsignedTransaction(s.keysFile.ExtendedPublicKeys,
+		s.keysFile.MinimumSignatures,
+		[]*libkaspawallet.Payment{{
+			Address: toAddress,
+			Amount:  request.Amount,
+		}, {
+			Address: changeAddress,
+			Amount:  changeSompi,
+		}}, selectedUTXOs)
+	if err != nil {
+		return nil, err
+	}
+
+	return &pb.CreateUnsignedTransactionResponse{UnsignedTransaction: unsignedTransaction}, nil
+}
+
+func (s *server) selectUTXOs(spendAmount uint64, feePerInput uint64) (
+	selectedUTXOs []*libkaspawallet.UTXO, changeSompi uint64, err error) {
+
+	selectedUTXOs = []*libkaspawallet.UTXO{}
+	totalValue := uint64(0)
+
+	dagInfo, err := s.rpcClient.GetBlockDAGInfo()
+	if err != nil {
+		return nil, 0, err
+	}
+
+	for _, utxo := range s.utxos {
+		if !isUTXOSpendable(utxo, dagInfo.VirtualDAAScore, s.params.BlockCoinbaseMaturity) {
+			continue
+		}
+
+		selectedUTXOs = append(selectedUTXOs, &libkaspawallet.UTXO{
+			Outpoint:       utxo.Outpoint,
+			UTXOEntry:      utxo.UTXOEntry,
+			DerivationPath: s.walletAddressPath(utxo.address),
+		})
+		totalValue += utxo.UTXOEntry.Amount()
+
+		fee := feePerInput * uint64(len(selectedUTXOs))
+		totalSpend := spendAmount + fee
+		if totalValue >= totalSpend {
+			break
+		}
+	}
+
+	fee := feePerInput * uint64(len(selectedUTXOs))
+	totalSpend := spendAmount + fee
+	if totalValue < totalSpend {
+		return nil, 0, errors.Errorf("Insufficient funds for send: %f required, while only %f available",
+			float64(totalSpend)/util.SompiPerKaspa, float64(totalValue)/util.SompiPerKaspa)
+	}
+
+	return selectedUTXOs, totalValue - totalSpend, nil
+}

cmd/kaspawallet/daemon/server/log.go

@@ -0,0 +1,47 @@
+package server
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/kaspanet/kaspad/util"
+
+	"github.com/kaspanet/kaspad/infrastructure/logger"
+	"github.com/kaspanet/kaspad/util/panics"
+)
+
+var (
+	backendLog = logger.NewBackend()
+	log        = backendLog.Logger("KSWD")
+	spawn      = panics.GoroutineWrapperFunc(log)
+
+	defaultAppDir     = util.AppDir("kaspawallet", false)
+	defaultLogFile    = filepath.Join(defaultAppDir, "daemon.log")
+	defaultErrLogFile = filepath.Join(defaultAppDir, "daemon_err.log")
+)
+
+func initLog(logFile, errLogFile string) {
+	log.SetLevel(logger.LevelDebug)
+	err := backendLog.AddLogFile(logFile, logger.LevelTrace)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error adding log file %s as log rotator for level %s: %s", logFile, logger.LevelTrace, err)
+		os.Exit(1)
+	}
+	err = backendLog.AddLogFile(errLogFile, logger.LevelWarn)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error adding log file %s as log rotator for level %s: %s", errLogFile, logger.LevelWarn, err)
+		os.Exit(1)
+	}
+	err = backendLog.AddLogWriter(os.Stdout, logger.LevelInfo)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error adding stdout to the loggerfor level %s: %s", logger.LevelWarn, err)
+		os.Exit(1)
+	}
+	err = backendLog.Run()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error starting the logger: %s ", err)
+		os.Exit(1)
+	}
+
+}

cmd/kaspawallet/daemon/server/rpc.go

@@ -0,0 +1,15 @@
+package server
+
+import (
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/kaspanet/kaspad/infrastructure/network/rpcclient"
+)
+
+func connectToRPC(params *dagconfig.Params, rpcServer string) (*rpcclient.RPCClient, error) {
+	rpcAddress, err := params.NormalizeRPCServerAddress(rpcServer)
+	if err != nil {
+		return nil, err
+	}
+
+	return rpcclient.NewRPCClient(rpcAddress)
+}

cmd/kaspawallet/daemon/server/server.go

@@ -0,0 +1,109 @@
+package server
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"sync"
+	"time"
+
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/keys"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/kaspanet/kaspad/infrastructure/network/rpcclient"
+	"github.com/kaspanet/kaspad/infrastructure/os/signal"
+	"github.com/kaspanet/kaspad/util/panics"
+	"github.com/pkg/errors"
+
+	"google.golang.org/grpc"
+)
+
+type server struct {
+	pb.UnimplementedKaspawalletdServer
+
+	rpcClient *rpcclient.RPCClient
+	params    *dagconfig.Params
+
+	lock               sync.RWMutex
+	utxos              map[externalapi.DomainOutpoint]*walletUTXO
+	nextSyncStartIndex uint32
+	keysFile           *keys.File
+	shutdown           chan struct{}
+}
+
+// Start starts the kaspawalletd server
+func Start(params *dagconfig.Params, listen, rpcServer string, keysFilePath string) error {
+	initLog(defaultLogFile, defaultErrLogFile)
+
+	defer panics.HandlePanic(log, "MAIN", nil)
+	interrupt := signal.InterruptListener()
+
+	listener, err := net.Listen("tcp", listen)
+	if err != nil {
+		return (errors.Wrapf(err, "Error listening to tcp at %s", listen))
+	}
+	log.Infof("Listening on %s", listen)
+
+	rpcClient, err := connectToRPC(params, rpcServer)
+	if err != nil {
+		return (errors.Wrapf(err, "Error connecting to RPC server %s", rpcServer))
+	}
+
+	keysFile, err := keys.ReadKeysFile(params, keysFilePath)
+	if err != nil {
+		return (errors.Wrapf(err, "Error connecting to RPC server %s", rpcServer))
+	}
+
+	serverInstance := &server{
+		rpcClient:          rpcClient,
+		params:             params,
+		utxos:              make(map[externalapi.DomainOutpoint]*walletUTXO),
+		nextSyncStartIndex: 0,
+		keysFile:           keysFile,
+		shutdown:           make(chan struct{}),
+	}
+
+	spawn("serverInstance.sync", func() {
+		err := serverInstance.sync()
+		if err != nil {
+			printErrorAndExit(errors.Wrap(err, "error syncing the wallet"))
+		}
+	})
+
+	grpcServer := grpc.NewServer()
+	pb.RegisterKaspawalletdServer(grpcServer, serverInstance)
+
+	spawn("grpcServer.Serve", func() {
+		err := grpcServer.Serve(listener)
+		if err != nil {
+			printErrorAndExit(errors.Wrap(err, "Error serving gRPC"))
+		}
+	})
+
+	select {
+	case <-serverInstance.shutdown:
+	case <-interrupt:
+		const stopTimeout = 2 * time.Second
+
+		stopChan := make(chan interface{})
+		spawn("gRPCServer.Stop", func() {
+			grpcServer.GracefulStop()
+			close(stopChan)
+		})
+
+		select {
+		case <-stopChan:
+		case <-time.After(stopTimeout):
+			log.Warnf("Could not gracefully stop: timed out after %s", stopTimeout)
+			grpcServer.Stop()
+		}
+	}
+
+	return nil
+}
+
+func printErrorAndExit(err error) {
+	fmt.Fprintf(os.Stderr, "%+v\n", err)
+	os.Exit(1)
+}

cmd/kaspawallet/daemon/server/shutdown.go

@@ -0,0 +1,13 @@
+package server
+
+import (
+	"context"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+)
+
+func (s *server) Shutdown(ctx context.Context, request *pb.ShutdownRequest) (*pb.ShutdownResponse, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	close(s.shutdown)
+	return &pb.ShutdownResponse{}, nil
+}

cmd/kaspawallet/daemon/server/sync.go

@@ -0,0 +1,263 @@
+package server
+
+import (
+	"github.com/kaspanet/kaspad/app/appmessage"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/pkg/errors"
+	"time"
+)
+
+const (
+	// externalKeychain is the key chain that is used to create receive addresses
+	externalKeychain = 0
+	// internalKeychain is used to create change addresses
+	internalKeychain = 1
+)
+
+var keyChains = []uint8{externalKeychain, internalKeychain}
+
+type walletAddressSet map[string]*walletAddress
+
+func (was walletAddressSet) strings() []string {
+	addresses := make([]string, 0, len(was))
+	for addr := range was {
+		addresses = append(addresses, addr)
+	}
+	return addresses
+}
+
+func (s *server) sync() error {
+	ticker := time.NewTicker(time.Second)
+	defer ticker.Stop()
+
+	for range ticker.C {
+		err := s.collectUTXOsFromRecentAddresses()
+		if err != nil {
+			return err
+		}
+
+		err = s.collectUTXOsFromFarAddresses()
+		if err != nil {
+			return err
+		}
+
+		err = s.refreshExistingUTXOsWithLock()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+const numIndexesToQuery = 100
+
+// addressesToQuery scans the addresses in the given range. Because
+// each cosigner in a multisig has its own unique path for generating
+// addresses it goes over all the cosigners and add their addresses
+// for each key chain.
+func (s *server) addressesToQuery(start, end uint32) (walletAddressSet, error) {
+	addresses := make(walletAddressSet)
+	for index := start; index < end; index++ {
+		for cosignerIndex := uint32(0); cosignerIndex < uint32(len(s.keysFile.ExtendedPublicKeys)); cosignerIndex++ {
+			for _, keychain := range keyChains {
+				address := &walletAddress{
+					index:         index,
+					cosignerIndex: cosignerIndex,
+					keyChain:      keychain,
+				}
+				addressString, err := s.walletAddressString(address)
+				if err != nil {
+					return nil, err
+				}
+				addresses[addressString] = address
+			}
+		}
+	}
+
+	return addresses, nil
+}
+
+// collectUTXOsFromFarAddresses collects numIndexesToQuery UTXOs
+// from the last point it stopped in the previous call.
+func (s *server) collectUTXOsFromFarAddresses() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	err := s.collectUTXOs(s.nextSyncStartIndex, s.nextSyncStartIndex+numIndexesToQuery)
+	if err != nil {
+		return err
+	}
+
+	s.nextSyncStartIndex += numIndexesToQuery
+	return nil
+}
+
+func (s *server) maxUsedIndex() uint32 {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	maxUsedIndex := s.keysFile.LastUsedExternalIndex()
+	if s.keysFile.LastUsedInternalIndex() > maxUsedIndex {
+		maxUsedIndex = s.keysFile.LastUsedInternalIndex()
+	}
+
+	return maxUsedIndex
+}
+
+// collectUTXOsFromRecentAddresses collects UTXOs from used addresses until
+// the address with the index of the last used address + 1000.
+// collectUTXOsFromRecentAddresses scans addresses in batches of numIndexesToQuery,
+// and releases the lock between scans.
+func (s *server) collectUTXOsFromRecentAddresses() error {
+	maxUsedIndex := s.maxUsedIndex()
+	for i := uint32(0); i < maxUsedIndex+1000; i += numIndexesToQuery {
+		err := s.collectUTXOsWithLock(i, i+numIndexesToQuery)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (s *server) collectUTXOsWithLock(start, end uint32) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	return s.collectUTXOs(start, end)
+}
+
+func (s *server) collectUTXOs(start, end uint32) error {
+	addressSet, err := s.addressesToQuery(start, end)
+	if err != nil {
+		return err
+	}
+
+	getUTXOsByAddressesResponse, err := s.rpcClient.GetUTXOsByAddresses(addressSet.strings())
+	if err != nil {
+		return err
+	}
+
+	err = s.updateLastUsedIndexes(addressSet, getUTXOsByAddressesResponse)
+	if err != nil {
+		return err
+	}
+
+	err = s.updateUTXOs(addressSet, getUTXOsByAddressesResponse)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *server) updateUTXOs(addressSet walletAddressSet,
+	getUTXOsByAddressesResponse *appmessage.GetUTXOsByAddressesResponseMessage) error {
+
+	for _, entry := range getUTXOsByAddressesResponse.Entries {
+		err := s.addEntryToUTXOSet(entry, addressSet)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (s *server) updateLastUsedIndexes(addressSet walletAddressSet,
+	getUTXOsByAddressesResponse *appmessage.GetUTXOsByAddressesResponseMessage) error {
+
+	lastUsedExternalIndex := s.keysFile.LastUsedExternalIndex()
+	lastUsedInternalIndex := s.keysFile.LastUsedInternalIndex()
+
+	for _, entry := range getUTXOsByAddressesResponse.Entries {
+		walletAddress, ok := addressSet[entry.Address]
+		if !ok {
+			return errors.Errorf("Got result from address %s even though it wasn't requested", entry.Address)
+		}
+
+		if walletAddress.cosignerIndex != s.keysFile.CosignerIndex {
+			continue
+		}
+
+		if walletAddress.keyChain == externalKeychain {
+			if walletAddress.index > lastUsedExternalIndex {
+				lastUsedExternalIndex = walletAddress.index
+			}
+			continue
+		}
+
+		if walletAddress.index > lastUsedInternalIndex {
+			lastUsedInternalIndex = walletAddress.index
+		}
+	}
+
+	err := s.keysFile.SetLastUsedExternalIndex(lastUsedExternalIndex)
+	if err != nil {
+		return err
+	}
+
+	return s.keysFile.SetLastUsedInternalIndex(lastUsedInternalIndex)
+}
+
+func (s *server) refreshExistingUTXOsWithLock() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	return s.refreshExistingUTXOs()
+}
+
+func (s *server) addEntryToUTXOSet(entry *appmessage.UTXOsByAddressesEntry, addressSet walletAddressSet) error {
+	outpoint, err := appmessage.RPCOutpointToDomainOutpoint(entry.Outpoint)
+	if err != nil {
+		return err
+	}
+
+	utxoEntry, err := appmessage.RPCUTXOEntryToUTXOEntry(entry.UTXOEntry)
+	if err != nil {
+		return err
+	}
+
+	address, ok := addressSet[entry.Address]
+	if !ok {
+		return errors.Errorf("Got result from address %s even though it wasn't requested", entry.Address)
+	}
+
+	s.utxos[*outpoint] = &walletUTXO{
+		Outpoint:  outpoint,
+		UTXOEntry: utxoEntry,
+		address:   address,
+	}
+
+	return nil
+}
+
+func (s *server) refreshExistingUTXOs() error {
+	addressSet := make(walletAddressSet, len(s.utxos))
+	for _, utxo := range s.utxos {
+		addressString, err := s.walletAddressString(utxo.address)
+		if err != nil {
+			return err
+		}
+
+		addressSet[addressString] = utxo.address
+	}
+
+	getUTXOsByAddressesResponse, err := s.rpcClient.GetUTXOsByAddresses(addressSet.strings())
+	if err != nil {
+		return err
+	}
+
+	s.utxos = make(map[externalapi.DomainOutpoint]*walletUTXO, len(getUTXOsByAddressesResponse.Entries))
+	for _, entry := range getUTXOsByAddressesResponse.Entries {
+		err := s.addEntryToUTXOSet(entry, addressSet)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (s *server) isSynced() bool {
+	return s.nextSyncStartIndex > s.keysFile.LastUsedInternalIndex() && s.nextSyncStartIndex > s.keysFile.LastUsedExternalIndex()
+}

cmd/kaspawallet/dump_unencrypted_data.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/keys"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/utils"
+	"os"
+
+	"github.com/pkg/errors"
+)
+
+func dumpUnencryptedData(conf *dumpUnencryptedDataConfig) error {
+	if !conf.Yes {
+		err := confirmDump()
+		if err != nil {
+			return err
+		}
+	}
+
+	keysFile, err := keys.ReadKeysFile(conf.NetParams(), conf.KeysFile)
+	if err != nil {
+		return err
+	}
+
+	mnemonics, err := keysFile.DecryptMnemonics(conf.Password)
+	if err != nil {
+		return err
+	}
+
+	mnemonicPublicKeys := make(map[string]struct{})
+	for i, mnemonic := range mnemonics {
+		fmt.Printf("Mnemonic #%d:\n%s\n\n", i+1, mnemonic)
+		publicKey, err := libkaspawallet.MasterPublicKeyFromMnemonic(conf.NetParams(), mnemonic, len(keysFile.ExtendedPublicKeys) > 1)
+		if err != nil {
+			return err
+		}
+
+		mnemonicPublicKeys[publicKey] = struct{}{}
+	}
+
+	i := 1
+	for _, extendedPublicKey := range keysFile.ExtendedPublicKeys {
+		if _, exists := mnemonicPublicKeys[extendedPublicKey]; exists {
+			continue
+		}
+
+		fmt.Printf("Extended Public key #%d:\n%s\n\n", i, extendedPublicKey)
+		i++
+	}
+
+	fmt.Printf("Minimum number of signatures: %d\n", keysFile.MinimumSignatures)
+	return nil
+}
+
+func confirmDump() error {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Printf("This operation will print your unencrypted keys on the screen. Anyone that sees this information " +
+		"will be able to steal your funds. Are you sure you want to proceed (y/N)? ")
+	line, err := utils.ReadLine(reader)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println()
+
+	if string(line) != "y" {
+		return errors.Errorf("Dump aborted by user")
+	}
+
+	return nil
+}

cmd/kaspawallet/keys/create.go

@@ -0,0 +1,118 @@
+package keys
+
+import (
+	"bufio"
+	"crypto/rand"
+	"crypto/subtle"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/utils"
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/pkg/errors"
+	"github.com/tyler-smith/go-bip39"
+	"os"
+)
+
+// CreateMnemonics generates `numKeys` number of mnemonics.
+func CreateMnemonics(params *dagconfig.Params, numKeys uint32, cmdLinePassword string, isMultisig bool) (encryptedPrivateKeys []*EncryptedMnemonic, extendedPublicKeys []string, err error) {
+	mnemonics := make([]string, numKeys)
+	for i := uint32(0); i < numKeys; i++ {
+		var err error
+		mnemonics[i], err = libkaspawallet.CreateMnemonic()
+		if err != nil {
+			return nil, nil, err
+		}
+	}
+
+	return encryptedMnemonicExtendedPublicKeyPairs(params, mnemonics, cmdLinePassword, isMultisig)
+}
+
+// ImportMnemonics imports a `numKeys` of mnemonics.
+func ImportMnemonics(params *dagconfig.Params, numKeys uint32, cmdLinePassword string, isMultisig bool) (encryptedPrivateKeys []*EncryptedMnemonic, extendedPublicKeys []string, err error) {
+	mnemonics := make([]string, numKeys)
+	for i := uint32(0); i < numKeys; i++ {
+		fmt.Printf("Enter mnemonic #%d here:\n", i+1)
+		reader := bufio.NewReader(os.Stdin)
+		mnemonic, err := utils.ReadLine(reader)
+		if err != nil {
+			return nil, nil, err
+		}
+
+		if !bip39.IsMnemonicValid(string(mnemonic)) {
+			return nil, nil, errors.Errorf("mnemonic is invalid")
+		}
+
+		mnemonics[i] = string(mnemonic)
+	}
+	return encryptedMnemonicExtendedPublicKeyPairs(params, mnemonics, cmdLinePassword, isMultisig)
+}
+
+func encryptedMnemonicExtendedPublicKeyPairs(params *dagconfig.Params, mnemonics []string, cmdLinePassword string, isMultisig bool) (
+	encryptedPrivateKeys []*EncryptedMnemonic, extendedPublicKeys []string, err error) {
+	password := []byte(cmdLinePassword)
+	if len(password) == 0 {
+
+		password = getPassword("Enter password for the key file:")
+		confirmPassword := getPassword("Confirm password:")
+
+		if subtle.ConstantTimeCompare(password, confirmPassword) != 1 {
+			return nil, nil, errors.New("Passwords are not identical")
+		}
+	}
+
+	encryptedPrivateKeys = make([]*EncryptedMnemonic, 0, len(mnemonics))
+	for _, mnemonic := range mnemonics {
+		extendedPublicKey, err := libkaspawallet.MasterPublicKeyFromMnemonic(params, mnemonic, isMultisig)
+		if err != nil {
+			return nil, nil, err
+		}
+
+		extendedPublicKeys = append(extendedPublicKeys, extendedPublicKey)
+
+		encryptedPrivateKey, err := encryptMnemonic(mnemonic, password)
+		if err != nil {
+			return nil, nil, err
+		}
+		encryptedPrivateKeys = append(encryptedPrivateKeys, encryptedPrivateKey)
+	}
+
+	return encryptedPrivateKeys, extendedPublicKeys, nil
+}
+
+func generateSalt() ([]byte, error) {
+	salt := make([]byte, 16)
+	_, err := rand.Read(salt)
+	if err != nil {
+		return nil, err
+	}
+
+	return salt, nil
+}
+
+func encryptMnemonic(mnemonic string, password []byte) (*EncryptedMnemonic, error) {
+	mnemonicBytes := []byte(mnemonic)
+
+	salt, err := generateSalt()
+	if err != nil {
+		return nil, err
+	}
+
+	aead, err := getAEAD(password, salt)
+	if err != nil {
+		return nil, err
+	}
+
+	// Select a random nonce, and leave capacity for the ciphertext.
+	nonce := make([]byte, aead.NonceSize(), aead.NonceSize()+len(mnemonicBytes)+aead.Overhead())
+	if _, err := rand.Read(nonce); err != nil {
+		return nil, err
+	}
+
+	// Encrypt the message and append the ciphertext to the nonce.
+	cipher := aead.Seal(nonce, nonce, []byte(mnemonicBytes), nil)
+
+	return &EncryptedMnemonic{
+		cipher: cipher,
+		salt:   salt,
+	}, nil
+}

cmd/kaspawallet/keys/get_password.go

@@ -0,0 +1,41 @@
+package keys
+
+import (
+	"fmt"
+	"golang.org/x/term"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+// getPassword was adapted from https://gist.github.com/jlinoff/e8e26b4ffa38d379c7f1891fd174a6d0#file-getpassword2-go
+func getPassword(prompt string) []byte {
+	// Get the initial state of the terminal.
+	initialTermState, e1 := term.GetState(int(syscall.Stdin))
+	if e1 != nil {
+		panic(e1)
+	}
+
+	// Restore it in the event of an interrupt.
+	// CITATION: Konstantin Shaposhnikov - https://groups.google.com/forum/#!topic/golang-nuts/kTVAbtee9UA
+	c := make(chan os.Signal)
+	signal.Notify(c, os.Interrupt, os.Kill)
+	go func() {
+		<-c
+		_ = term.Restore(int(syscall.Stdin), initialTermState)
+		os.Exit(1)
+	}()
+
+	// Now get the password.
+	fmt.Print(prompt)
+	p, err := term.ReadPassword(int(syscall.Stdin))
+	fmt.Println()
+	if err != nil {
+		panic(err)
+	}
+
+	// Stop looking for ^C on the channel.
+	signal.Stop(c)
+
+	return p
+}

cmd/kaspawallet/keys/keys.go

@@ -0,0 +1,306 @@
+package keys
+
+import (
+	"bufio"
+	"crypto/cipher"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/utils"
+	"os"
+	"path/filepath"
+	"runtime"
+
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/kaspanet/kaspad/util"
+	"github.com/pkg/errors"
+	"golang.org/x/crypto/argon2"
+	"golang.org/x/crypto/chacha20poly1305"
+)
+
+var (
+	defaultAppDir = util.AppDir("kaspawallet", false)
+)
+
+func defaultKeysFile(netParams *dagconfig.Params) string {
+	return filepath.Join(defaultAppDir, netParams.Name, "keys.json")
+}
+
+type encryptedPrivateKeyJSON struct {
+	Cipher string `json:"cipher"`
+	Salt   string `json:"salt"`
+}
+
+type keysFileJSON struct {
+	EncryptedPrivateKeys  []*encryptedPrivateKeyJSON `json:"encryptedMnemonics"`
+	ExtendedPublicKeys    []string                   `json:"publicKeys"`
+	MinimumSignatures     uint32                     `json:"minimumSignatures"`
+	CosignerIndex         uint32                     `json:"cosignerIndex"`
+	LastUsedExternalIndex uint32                     `json:"lastUsedExternalIndex"`
+	LastUsedInternalIndex uint32                     `json:"lastUsedInternalIndex"`
+	ECDSA                 bool                       `json:"ecdsa"`
+}
+
+// EncryptedMnemonic represents an encrypted mnemonic
+type EncryptedMnemonic struct {
+	cipher []byte
+	salt   []byte
+}
+
+// File holds all the data related to the wallet keys
+type File struct {
+	EncryptedMnemonics    []*EncryptedMnemonic
+	ExtendedPublicKeys    []string
+	MinimumSignatures     uint32
+	CosignerIndex         uint32
+	lastUsedExternalIndex uint32
+	lastUsedInternalIndex uint32
+	ECDSA                 bool
+	path                  string
+}
+
+func (d *File) toJSON() *keysFileJSON {
+	encryptedPrivateKeysJSON := make([]*encryptedPrivateKeyJSON, len(d.EncryptedMnemonics))
+	for i, encryptedPrivateKey := range d.EncryptedMnemonics {
+		encryptedPrivateKeysJSON[i] = &encryptedPrivateKeyJSON{
+			Cipher: hex.EncodeToString(encryptedPrivateKey.cipher),
+			Salt:   hex.EncodeToString(encryptedPrivateKey.salt),
+		}
+	}
+
+	return &keysFileJSON{
+		EncryptedPrivateKeys:  encryptedPrivateKeysJSON,
+		ExtendedPublicKeys:    d.ExtendedPublicKeys,
+		MinimumSignatures:     d.MinimumSignatures,
+		ECDSA:                 d.ECDSA,
+		CosignerIndex:         d.CosignerIndex,
+		LastUsedExternalIndex: d.lastUsedExternalIndex,
+		LastUsedInternalIndex: d.lastUsedInternalIndex,
+	}
+}
+
+func (d *File) fromJSON(fileJSON *keysFileJSON) error {
+	d.MinimumSignatures = fileJSON.MinimumSignatures
+	d.ECDSA = fileJSON.ECDSA
+	d.ExtendedPublicKeys = fileJSON.ExtendedPublicKeys
+	d.CosignerIndex = fileJSON.CosignerIndex
+	d.lastUsedExternalIndex = fileJSON.LastUsedExternalIndex
+	d.lastUsedInternalIndex = fileJSON.LastUsedInternalIndex
+
+	d.EncryptedMnemonics = make([]*EncryptedMnemonic, len(fileJSON.EncryptedPrivateKeys))
+	for i, encryptedPrivateKeyJSON := range fileJSON.EncryptedPrivateKeys {
+		cipher, err := hex.DecodeString(encryptedPrivateKeyJSON.Cipher)
+		if err != nil {
+			return err
+		}
+
+		salt, err := hex.DecodeString(encryptedPrivateKeyJSON.Salt)
+		if err != nil {
+			return err
+		}
+
+		d.EncryptedMnemonics[i] = &EncryptedMnemonic{
+			cipher: cipher,
+			salt:   salt,
+		}
+	}
+
+	return nil
+}
+
+// SetPath sets the path where the file is saved to.
+func (d *File) SetPath(params *dagconfig.Params, path string, forceOverride bool) error {
+	if path == "" {
+		path = defaultKeysFile(params)
+	}
+
+	if !forceOverride {
+		exists, err := pathExists(path)
+		if err != nil {
+			return err
+		}
+
+		if exists {
+			reader := bufio.NewReader(os.Stdin)
+			fmt.Printf("The file %s already exists. Are you sure you want to override it (type 'y' to approve)? ", d.path)
+			line, err := utils.ReadLine(reader)
+			if err != nil {
+				return err
+			}
+
+			if string(line) != "y" {
+				return errors.Errorf("aborted setting the file path to %s", path)
+			}
+		}
+	}
+	d.path = path
+	return nil
+}
+
+// Path returns the file path.
+func (d *File) Path() string {
+	return d.path
+}
+
+// SetLastUsedExternalIndex sets the last used index in the external key
+// chain, and saves the file with the updated data.
+func (d *File) SetLastUsedExternalIndex(index uint32) error {
+	if d.lastUsedExternalIndex == index {
+		return nil
+	}
+
+	d.lastUsedExternalIndex = index
+	return d.Save()
+}
+
+// LastUsedExternalIndex returns the last used index in the external key
+// chain and saves the file with the updated data.
+func (d *File) LastUsedExternalIndex() uint32 {
+	return d.lastUsedExternalIndex
+}
+
+// SetLastUsedInternalIndex sets the last used index in the internal key chain, and saves the file.
+func (d *File) SetLastUsedInternalIndex(index uint32) error {
+	if d.lastUsedInternalIndex == index {
+		return nil
+	}
+
+	d.lastUsedInternalIndex = index
+	return d.Save()
+}
+
+// LastUsedInternalIndex returns the last used index in the internal key chain
+func (d *File) LastUsedInternalIndex() uint32 {
+	return d.lastUsedInternalIndex
+}
+
+// DecryptMnemonics asks the user to enter the password for the private keys and
+// returns the decrypted private keys.
+func (d *File) DecryptMnemonics(cmdLinePassword string) ([]string, error) {
+	password := []byte(cmdLinePassword)
+	if len(password) == 0 {
+		password = getPassword("Password:")
+	}
+	privateKeys := make([]string, len(d.EncryptedMnemonics))
+	for i, encryptedPrivateKey := range d.EncryptedMnemonics {
+		var err error
+		privateKeys[i], err = decryptMnemonic(encryptedPrivateKey, password)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return privateKeys, nil
+}
+
+// ReadKeysFile returns the data related to the keys file
+func ReadKeysFile(netParams *dagconfig.Params, path string) (*File, error) {
+	if path == "" {
+		path = defaultKeysFile(netParams)
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+
+	decoder := json.NewDecoder(file)
+	decoder.DisallowUnknownFields()
+	decodedFile := &keysFileJSON{}
+	err = decoder.Decode(&decodedFile)
+	if err != nil {
+		return nil, err
+	}
+
+	keysFile := &File{
+		path: path,
+	}
+	err = keysFile.fromJSON(decodedFile)
+	if err != nil {
+		return nil, err
+	}
+
+	return keysFile, nil
+}
+
+func createFileDirectoryIfDoesntExist(path string) error {
+	dir := filepath.Dir(path)
+	exists, err := pathExists(dir)
+	if err != nil {
+		return err
+	}
+
+	if exists {
+		return nil
+	}
+
+	return os.MkdirAll(dir, 0700)
+}
+
+func pathExists(path string) (bool, error) {
+	_, err := os.Stat(path)
+
+	if err == nil {
+		return true, nil
+	}
+
+	if os.IsNotExist(err) {
+		return false, nil
+
+	}
+
+	return false, err
+}
+
+// Save writes the file contents to the disk.
+func (d *File) Save() error {
+	if d.path == "" {
+		return errors.New("cannot save a file with uninitialized path")
+	}
+
+	err := createFileDirectoryIfDoesntExist(d.path)
+	if err != nil {
+		return err
+	}
+
+	file, err := os.OpenFile(d.path, os.O_WRONLY|os.O_CREATE, 0600)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	encoder := json.NewEncoder(file)
+	err = encoder.Encode(d.toJSON())
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func getAEAD(password, salt []byte) (cipher.AEAD, error) {
+	key := argon2.IDKey(password, salt, 1, 64*1024, uint8(runtime.NumCPU()), 32)
+	return chacha20poly1305.NewX(key)
+}
+
+func decryptMnemonic(encryptedPrivateKey *EncryptedMnemonic, password []byte) (string, error) {
+	aead, err := getAEAD(password, encryptedPrivateKey.salt)
+	if err != nil {
+		return "", err
+	}
+
+	if len(encryptedPrivateKey.cipher) < aead.NonceSize() {
+		return "", errors.New("ciphertext too short")
+	}
+
+	// Split nonce and ciphertext.
+	nonce, ciphertext := encryptedPrivateKey.cipher[:aead.NonceSize()], encryptedPrivateKey.cipher[aead.NonceSize():]
+
+	// Decrypt the message and check it wasn't tampered with.
+	decrypted, err := aead.Open(nil, nonce, ciphertext, nil)
+	if err != nil {
+		return "", err
+	}
+
+	return string(decrypted), nil
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/alphabet.go

@@ -0,0 +1,49 @@
+// Copyright (c) 2015 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+// AUTOGENERATED by genalphabet.go; do not edit.
+
+package base58
+
+const (
+	// alphabet is the modified base58 alphabet used by Bitcoin.
+	alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
+
+	alphabetIdx0 = '1'
+)
+
+var b58 = [256]byte{
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 0, 1, 2, 3, 4, 5, 6,
+	7, 8, 255, 255, 255, 255, 255, 255,
+	255, 9, 10, 11, 12, 13, 14, 15,
+	16, 255, 17, 18, 19, 20, 21, 255,
+	22, 23, 24, 25, 26, 27, 28, 29,
+	30, 31, 32, 255, 255, 255, 255, 255,
+	255, 33, 34, 35, 36, 37, 38, 39,
+	40, 41, 42, 43, 255, 44, 45, 46,
+	47, 48, 49, 50, 51, 52, 53, 54,
+	55, 56, 57, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255,
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/base58.go

@@ -0,0 +1,75 @@
+// Copyright (c) 2013-2015 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package base58
+
+import (
+	"math/big"
+)
+
+//go:generate go run genalphabet.go
+
+var bigRadix = big.NewInt(58)
+var bigZero = big.NewInt(0)
+
+// Decode decodes a modified base58 string to a byte slice.
+func Decode(b string) []byte {
+	answer := big.NewInt(0)
+	j := big.NewInt(1)
+
+	scratch := new(big.Int)
+	for i := len(b) - 1; i >= 0; i-- {
+		tmp := b58[b[i]]
+		if tmp == 255 {
+			return []byte("")
+		}
+		scratch.SetInt64(int64(tmp))
+		scratch.Mul(j, scratch)
+		answer.Add(answer, scratch)
+		j.Mul(j, bigRadix)
+	}
+
+	tmpval := answer.Bytes()
+
+	var numZeros int
+	for numZeros = 0; numZeros < len(b); numZeros++ {
+		if b[numZeros] != alphabetIdx0 {
+			break
+		}
+	}
+	flen := numZeros + len(tmpval)
+	val := make([]byte, flen)
+	copy(val[numZeros:], tmpval)
+
+	return val
+}
+
+// Encode encodes a byte slice to a modified base58 string.
+func Encode(b []byte) string {
+	x := new(big.Int)
+	x.SetBytes(b)
+
+	answer := make([]byte, 0, len(b)*136/100)
+	for x.Cmp(bigZero) > 0 {
+		mod := new(big.Int)
+		x.DivMod(x, bigRadix, mod)
+		answer = append(answer, alphabet[mod.Int64()])
+	}
+
+	// leading zero bytes
+	for _, i := range b {
+		if i != 0 {
+			break
+		}
+		answer = append(answer, alphabetIdx0)
+	}
+
+	// reverse
+	alen := len(answer)
+	for i := 0; i < alen/2; i++ {
+		answer[i], answer[alen-1-i] = answer[alen-1-i], answer[i]
+	}
+
+	return string(answer)
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/base58_test.go

@@ -0,0 +1,98 @@
+// Copyright (c) 2013-2017 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package base58_test
+
+import (
+	"bytes"
+	"encoding/hex"
+	"testing"
+
+	"github.com/btcsuite/btcutil/base58"
+)
+
+var stringTests = []struct {
+	in  string
+	out string
+}{
+	{"", ""},
+	{" ", "Z"},
+	{"-", "n"},
+	{"0", "q"},
+	{"1", "r"},
+	{"-1", "4SU"},
+	{"11", "4k8"},
+	{"abc", "ZiCa"},
+	{"1234598760", "3mJr7AoUXx2Wqd"},
+	{"abcdefghijklmnopqrstuvwxyz", "3yxU3u1igY8WkgtjK92fbJQCd4BZiiT1v25f"},
+	{"00000000000000000000000000000000000000000000000000000000000000", "3sN2THZeE9Eh9eYrwkvZqNstbHGvrxSAM7gXUXvyFQP8XvQLUqNCS27icwUeDT7ckHm4FUHM2mTVh1vbLmk7y"},
+}
+
+var invalidStringTests = []struct {
+	in  string
+	out string
+}{
+	{"0", ""},
+	{"O", ""},
+	{"I", ""},
+	{"l", ""},
+	{"3mJr0", ""},
+	{"O3yxU", ""},
+	{"3sNI", ""},
+	{"4kl8", ""},
+	{"0OIl", ""},
+	{"!@#$%^&*()-_=+~`", ""},
+}
+
+var hexTests = []struct {
+	in  string
+	out string
+}{
+	{"61", "2g"},
+	{"626262", "a3gV"},
+	{"636363", "aPEr"},
+	{"73696d706c792061206c6f6e6720737472696e67", "2cFupjhnEsSn59qHXstmK2ffpLv2"},
+	{"00eb15231dfceb60925886b67d065299925915aeb172c06647", "1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L"},
+	{"516b6fcd0f", "ABnLTmg"},
+	{"bf4f89001e670274dd", "3SEo3LWLoPntC"},
+	{"572e4794", "3EFU7m"},
+	{"ecac89cad93923c02321", "EJDM8drfXA6uyA"},
+	{"10c8511e", "Rt5zm"},
+	{"00000000000000000000", "1111111111"},
+}
+
+func TestBase58(t *testing.T) {
+	// Encode tests
+	for x, test := range stringTests {
+		tmp := []byte(test.in)
+		if res := base58.Encode(tmp); res != test.out {
+			t.Errorf("Encode test #%d failed: got: %s want: %s",
+				x, res, test.out)
+			continue
+		}
+	}
+
+	// Decode tests
+	for x, test := range hexTests {
+		b, err := hex.DecodeString(test.in)
+		if err != nil {
+			t.Errorf("hex.DecodeString failed failed #%d: got: %s", x, test.in)
+			continue
+		}
+		if res := base58.Decode(test.out); !bytes.Equal(res, b) {
+			t.Errorf("Decode test #%d failed: got: %q want: %q",
+				x, res, test.in)
+			continue
+		}
+	}
+
+	// Decode with invalid input
+	for x, test := range invalidStringTests {
+		if res := base58.Decode(test.in); string(res) != test.out {
+			t.Errorf("Decode invalidString test #%d failed: got: %q want: %q",
+				x, res, test.out)
+			continue
+		}
+	}
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/base58bench_test.go

@@ -0,0 +1,35 @@
+// Copyright (c) 2013-2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package base58_test
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/btcsuite/btcutil/base58"
+)
+
+func BenchmarkBase58Encode(b *testing.B) {
+	b.StopTimer()
+	data := bytes.Repeat([]byte{0xff}, 5000)
+	b.SetBytes(int64(len(data)))
+	b.StartTimer()
+
+	for i := 0; i < b.N; i++ {
+		base58.Encode(data)
+	}
+}
+
+func BenchmarkBase58Decode(b *testing.B) {
+	b.StopTimer()
+	data := bytes.Repeat([]byte{0xff}, 5000)
+	encoded := base58.Encode(data)
+	b.SetBytes(int64(len(encoded)))
+	b.StartTimer()
+
+	for i := 0; i < b.N; i++ {
+		base58.Decode(encoded)
+	}
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/base58check.go

@@ -0,0 +1,52 @@
+// Copyright (c) 2013-2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package base58
+
+import (
+	"crypto/sha256"
+	"errors"
+)
+
+// ErrChecksum indicates that the checksum of a check-encoded string does not verify against
+// the checksum.
+var ErrChecksum = errors.New("checksum error")
+
+// ErrInvalidFormat indicates that the check-encoded string has an invalid format.
+var ErrInvalidFormat = errors.New("invalid format: version and/or checksum bytes missing")
+
+// checksum: first four bytes of sha256^2
+func checksum(input []byte) (cksum [4]byte) {
+	h := sha256.Sum256(input)
+	h2 := sha256.Sum256(h[:])
+	copy(cksum[:], h2[:4])
+	return
+}
+
+// CheckEncode prepends a version byte and appends a four byte checksum.
+func CheckEncode(input []byte, version byte) string {
+	b := make([]byte, 0, 1+len(input)+4)
+	b = append(b, version)
+	b = append(b, input[:]...)
+	cksum := checksum(b)
+	b = append(b, cksum[:]...)
+	return Encode(b)
+}
+
+// CheckDecode decodes a string that was encoded with CheckEncode and verifies the checksum.
+func CheckDecode(input string) (result []byte, version byte, err error) {
+	decoded := Decode(input)
+	if len(decoded) < 5 {
+		return nil, 0, ErrInvalidFormat
+	}
+	version = decoded[0]
+	var cksum [4]byte
+	copy(cksum[:], decoded[len(decoded)-4:])
+	if checksum(decoded[:len(decoded)-4]) != cksum {
+		return nil, 0, ErrChecksum
+	}
+	payload := decoded[1 : len(decoded)-4]
+	result = append(result, payload...)
+	return
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/base58check_test.go

@@ -0,0 +1,66 @@
+// Copyright (c) 2013-2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package base58_test
+
+import (
+	"testing"
+
+	"github.com/btcsuite/btcutil/base58"
+)
+
+var checkEncodingStringTests = []struct {
+	version byte
+	in      string
+	out     string
+}{
+	{20, "", "3MNQE1X"},
+	{20, " ", "B2Kr6dBE"},
+	{20, "-", "B3jv1Aft"},
+	{20, "0", "B482yuaX"},
+	{20, "1", "B4CmeGAC"},
+	{20, "-1", "mM7eUf6kB"},
+	{20, "11", "mP7BMTDVH"},
+	{20, "abc", "4QiVtDjUdeq"},
+	{20, "1234598760", "ZmNb8uQn5zvnUohNCEPP"},
+	{20, "abcdefghijklmnopqrstuvwxyz", "K2RYDcKfupxwXdWhSAxQPCeiULntKm63UXyx5MvEH2"},
+	{20, "00000000000000000000000000000000000000000000000000000000000000", "bi1EWXwJay2udZVxLJozuTb8Meg4W9c6xnmJaRDjg6pri5MBAxb9XwrpQXbtnqEoRV5U2pixnFfwyXC8tRAVC8XxnjK"},
+}
+
+func TestBase58Check(t *testing.T) {
+	for x, test := range checkEncodingStringTests {
+		// test encoding
+		if res := base58.CheckEncode([]byte(test.in), test.version); res != test.out {
+			t.Errorf("CheckEncode test #%d failed: got %s, want: %s", x, res, test.out)
+		}
+
+		// test decoding
+		res, version, err := base58.CheckDecode(test.out)
+		if err != nil {
+			t.Errorf("CheckDecode test #%d failed with err: %v", x, err)
+		} else if version != test.version {
+			t.Errorf("CheckDecode test #%d failed: got version: %d want: %d", x, version, test.version)
+		} else if string(res) != test.in {
+			t.Errorf("CheckDecode test #%d failed: got: %s want: %s", x, res, test.in)
+		}
+	}
+
+	// test the two decoding failure cases
+	// case 1: checksum error
+	_, _, err := base58.CheckDecode("3MNQE1Y")
+	if err != base58.ErrChecksum {
+		t.Error("Checkdecode test failed, expected ErrChecksum")
+	}
+	// case 2: invalid formats (string lengths below 5 mean the version byte and/or the checksum
+	// bytes are missing).
+	testString := ""
+	for len := 0; len < 4; len++ {
+		// make a string of length `len`
+		_, _, err = base58.CheckDecode(testString)
+		if err != base58.ErrInvalidFormat {
+			t.Error("Checkdecode test failed, expected ErrInvalidFormat")
+		}
+	}
+
+}

cmd/kaspawallet/libkaspawallet/bip32/base58/cov_report.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+# This script uses gocov to generate a test coverage report.
+# The gocov tool my be obtained with the following command:
+#   go get github.com/axw/gocov/gocov
+#
+# It will be installed to $GOPATH/bin, so ensure that location is in your $PATH.
+
+# Check for gocov.
+type gocov >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+	echo >&2 "This script requires the gocov tool."
+	echo >&2 "You may obtain it with the following command:"
+	echo >&2 "go get github.com/axw/gocov/gocov"
+	exit 1
+fi
+gocov test | gocov report

cmd/kaspawallet/libkaspawallet/bip32/base58/doc.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+/*
+Package base58 provides an API for working with modified base58 and Base58Check
+encodings.
+
+Modified Base58 Encoding
+
+Standard base58 encoding is similar to standard base64 encoding except, as the
+name implies, it uses a 58 character alphabet which results in an alphanumeric
+string and allows some characters which are problematic for humans to be
+excluded.  Due to this, there can be various base58 alphabets.
+
+The modified base58 alphabet used by Bitcoin, and hence this package, omits the
+0, O, I, and l characters that look the same in many fonts and are therefore
+hard to humans to distinguish.
+
+Base58Check Encoding Scheme
+
+The Base58Check encoding scheme is primarily used for Bitcoin addresses at the
+time of this writing, however it can be used to generically encode arbitrary
+byte arrays into human-readable strings along with a version byte that can be
+used to differentiate the same payload.  For Bitcoin addresses, the extra
+version is used to differentiate the network of otherwise identical public keys
+which helps prevent using an address intended for one network on another.
+*/
+package base58

cmd/kaspawallet/libkaspawallet/bip32/base58/example_test.go

@@ -0,0 +1,71 @@
+// Copyright (c) 2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package base58_test
+
+import (
+	"fmt"
+
+	"github.com/btcsuite/btcutil/base58"
+)
+
+// This example demonstrates how to decode modified base58 encoded data.
+func ExampleDecode() {
+	// Decode example modified base58 encoded data.
+	encoded := "25JnwSn7XKfNQ"
+	decoded := base58.Decode(encoded)
+
+	// Show the decoded data.
+	fmt.Println("Decoded Data:", string(decoded))
+
+	// Output:
+	// Decoded Data: Test data
+}
+
+// This example demonstrates how to encode data using the modified base58
+// encoding scheme.
+func ExampleEncode() {
+	// Encode example data with the modified base58 encoding scheme.
+	data := []byte("Test data")
+	encoded := base58.Encode(data)
+
+	// Show the encoded data.
+	fmt.Println("Encoded Data:", encoded)
+
+	// Output:
+	// Encoded Data: 25JnwSn7XKfNQ
+}
+
+// This example demonstrates how to decode Base58Check encoded data.
+func ExampleCheckDecode() {
+	// Decode an example Base58Check encoded data.
+	encoded := "1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa"
+	decoded, version, err := base58.CheckDecode(encoded)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	// Show the decoded data.
+	fmt.Printf("Decoded data: %x\n", decoded)
+	fmt.Println("Version Byte:", version)
+
+	// Output:
+	// Decoded data: 62e907b15cbf27d5425399ebf6f0fb50ebb88f18
+	// Version Byte: 0
+}
+
+// This example demonstrates how to encode data using the Base58Check encoding
+// scheme.
+func ExampleCheckEncode() {
+	// Encode example data with the Base58Check encoding scheme.
+	data := []byte("Test data")
+	encoded := base58.CheckEncode(data, 0)
+
+	// Show the encoded data.
+	fmt.Println("Encoded Data:", encoded)
+
+	// Output:
+	// Encoded Data: 182iP79GRURMp7oMHDU
+}

cmd/kaspawallet/libkaspawallet/bip32/bip32.go

@@ -0,0 +1,46 @@
+package bip32
+
+import "crypto/rand"
+
+// GenerateSeed generates seed that can be used to initialize a master key.
+func GenerateSeed() ([]byte, error) {
+	randBytes := make([]byte, 32)
+	_, err := rand.Read(randBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	return randBytes, nil
+}
+
+// NewMasterWithPath returns a new master key based on the given seed and version, with a derivation
+// to the given path.
+func NewMasterWithPath(seed []byte, version [4]byte, pathString string) (*ExtendedKey, error) {
+	masterKey, err := NewMaster(seed, version)
+	if err != nil {
+		return nil, err
+	}
+
+	return masterKey.DeriveFromPath(pathString)
+}
+
+// NewPublicMasterWithPath returns a new public master key based on the given seed and version, with a derivation
+// to the given path.
+func NewPublicMasterWithPath(seed []byte, version [4]byte, pathString string) (*ExtendedKey, error) {
+	masterKey, err := NewMaster(seed, version)
+	if err != nil {
+		return nil, err
+	}
+
+	path, err := parsePath(pathString)
+	if err != nil {
+		return nil, err
+	}
+
+	descendantKey, err := masterKey.path(path)
+	if err != nil {
+		return nil, err
+	}
+
+	return descendantKey.Public()
+}

cmd/kaspawallet/libkaspawallet/bip32/bip32_test.go

@@ -0,0 +1,420 @@
+package bip32
+
+import (
+	"encoding/hex"
+	"math/rand"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestBIP32SpecVectors(t *testing.T) {
+	type testPath struct {
+		path               string
+		extendedPublicKey  string
+		extendedPrivateKey string
+	}
+
+	type testVector struct {
+		seed    string
+		version [4]byte
+		paths   []testPath
+	}
+
+	// test vectors are copied from https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#Test_Vectors
+	testVectors := []testVector{
+		{
+			seed:    "000102030405060708090a0b0c0d0e0f",
+			version: BitcoinMainnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8",
+					extendedPrivateKey: "xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "xpub68Gmy5EdvgibQVfPdqkBBCHxA5htiqg55crXYuXoQRKfDBFA1WEjWgP6LHhwBZeNK1VTsfTFUHCdrfp1bgwQ9xv5ski8PX9rL2dZXvgGDnw",
+					extendedPrivateKey: "xprv9uHRZZhk6KAJC1avXpDAp4MDc3sQKNxDiPvvkX8Br5ngLNv1TxvUxt4cV1rGL5hj6KCesnDYUhd7oWgT11eZG7XnxHrnYeSvkzY7d2bhkJ7",
+				},
+				{
+					path:               "m/0'/1",
+					extendedPublicKey:  "xpub6ASuArnXKPbfEwhqN6e3mwBcDTgzisQN1wXN9BJcM47sSikHjJf3UFHKkNAWbWMiGj7Wf5uMash7SyYq527Hqck2AxYysAA7xmALppuCkwQ",
+					extendedPrivateKey: "xprv9wTYmMFdV23N2TdNG573QoEsfRrWKQgWeibmLntzniatZvR9BmLnvSxqu53Kw1UmYPxLgboyZQaXwTCg8MSY3H2EU4pWcQDnRnrVA1xe8fs",
+				},
+				{
+					path:               "m/0'/1/2'",
+					extendedPublicKey:  "xpub6D4BDPcP2GT577Vvch3R8wDkScZWzQzMMUm3PWbmWvVJrZwQY4VUNgqFJPMM3No2dFDFGTsxxpG5uJh7n7epu4trkrX7x7DogT5Uv6fcLW5",
+					extendedPrivateKey: "xprv9z4pot5VBttmtdRTWfWQmoH1taj2axGVzFqSb8C9xaxKymcFzXBDptWmT7FwuEzG3ryjH4ktypQSAewRiNMjANTtpgP4mLTj34bhnZX7UiM",
+				},
+				{
+					path:               "m/0'/1/2'/2",
+					extendedPublicKey:  "xpub6FHa3pjLCk84BayeJxFW2SP4XRrFd1JYnxeLeU8EqN3vDfZmbqBqaGJAyiLjTAwm6ZLRQUMv1ZACTj37sR62cfN7fe5JnJ7dh8zL4fiyLHV",
+					extendedPrivateKey: "xprvA2JDeKCSNNZky6uBCviVfJSKyQ1mDYahRjijr5idH2WwLsEd4Hsb2Tyh8RfQMuPh7f7RtyzTtdrbdqqsunu5Mm3wDvUAKRHSC34sJ7in334",
+				},
+				{
+					path:               "m/0'/1/2'/2/1000000000",
+					extendedPublicKey:  "xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy",
+					extendedPrivateKey: "xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76",
+				},
+			},
+		},
+		{
+			seed:    "000102030405060708090a0b0c0d0e0f",
+			version: KaspaMainnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "kpub2C2CKMtB3F5r4LEGRnS3o73omeQB3KJ5QfAzC5R3t9bpChBEZNitvn92JYeCTMtnR7oE1im7DhsxGqV72JErXFG9G3YnTHRnZPkGZLFE6PZ",
+					extendedPrivateKey: "kprv5y2qurMHCsXYqr9oKku3Ry75DcZgdraE3SFPPh1SKp4qKtr61qQeNypYTGztwUUiVauHWmjxaQXeUKHxj4QCuDG4ULpZHkvBoH9XX19ynXm",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "kpub2EHcK5Be8WCqCwMydYJgg99v6TxXRPn66GbtAAoArLo6ZyUQycFz3vVS5pCuCfoKRL5nsxJXxLx3FETEyKyEb8isTgM3NbL15KsprxXRXYP",
+					extendedPrivateKey: "kprv61JFuZekJ8eXzTHWXWmgK1DBYS831w4Ej3gHMnPZJ1G7hB9GS4wjW8AxEYMEMBrgCdnyt54pxmNXC5KgNegPhHLaYDVhXid5WHnNxE7Nir6",
+				},
+				{
+					path:               "m/0'/1",
+					extendedPublicKey:  "kpub2GTjWrjXXD5u3PQRMoCZGt3a9qwdRRWP2bGikSZynybJoWyYhQgJ1VPfVtfUccWfP3hqfNke4wSWqYC4Sf98GnYoktBtrELGi4Qc9xmGTUP",
+					extendedPrivateKey: "kprv63UP7MCdgqXbpuKxFmfYuk6qbp791xnXfNM7x4ANEe4KvieQ9sN3Th5BebYHx7dieiYfgtfG3UKwL1quVzUNUSq23zTRbUPwB66kV2rWPC8",
+				},
+				{
+					path:               "m/0'/1/2'",
+					extendedPublicKey:  "kpub2K51ZPZPE5wJuZCWcPbvdt5iNzp9gy6NN8WPzms8xqxkDNAfWAWiuvwb3urK4UwyjZoaGkjFSt1VHsLM9kgfLEheLnA2wBPxRkKkFDqc9zP",
+					extendedPrivateKey: "kprv665f9t2VPiP1h583WN4vGk8ypxyfHWNWzuaoCPTXQWRmLZqWxdCUN8d7CdkuvM9DABa4HMcBTt9qZDaf61PZbYGgQc1ykQdsnMqy7fTCNrm",
+				},
+				{
+					path:               "m/0'/1/2'/2",
+					extendedPublicKey:  "kpub2MJQPpgLQZcHz2gEJep1XPF2Tp6tKZQZocPhFjPcHHXMaTo2ZwD67WQWjEqhUH6iCsvkQmDCVcubrHgMF47s3qAuFZiDmNHnSSEbPpuRWiZ",
+					extendedPrivateKey: "kprv68K3zK9SaC3zmYbmCdH1AFJHunGPv6giSPU6TLyziwzNhfTt2PtqZi62sxANP1YeDyhkuGqkNhc12QV7HRvunvrior75JVTawLK8d8zN34Z",
+				},
+				{
+					path:               "m/0'/1/2'/2/1000000000",
+					extendedPublicKey:  "kpub2P2AsWHaXgzVWNTgRCNjq6F2G3gC94DbbrnFW1mkVMurHbCR6MTkNcZaN4keKYBRgaDHv7912pcCSi5NLuchu6L2878JZqsRFPrWduDKq9i",
+					extendedPrivateKey: "kprv6A2pTzkghKSCHtPDKAqjTxJHi1qhjbVkEdrehdN8w2NsQnsGYp9VppF6WowaHvfiqP71gdphDk982aVUpVwdutWG9LsJRQDJDfsVNMbtSap",
+				},
+			},
+		},
+		{
+			seed:    "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542",
+			version: BitcoinMainnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB",
+					extendedPrivateKey: "xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U",
+				},
+				{
+					path:               "m/0",
+					extendedPublicKey:  "xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH",
+					extendedPrivateKey: "xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt",
+				},
+				{
+					path:               "m/0/2147483647'",
+					extendedPublicKey:  "xpub6ASAVgeehLbnwdqV6UKMHVzgqAG8Gr6riv3Fxxpj8ksbH9ebxaEyBLZ85ySDhKiLDBrQSARLq1uNRts8RuJiHjaDMBU4Zn9h8LZNnBC5y4a",
+					extendedPrivateKey: "xprv9wSp6B7kry3Vj9m1zSnLvN3xH8RdsPP1Mh7fAaR7aRLcQMKTR2vidYEeEg2mUCTAwCd6vnxVrcjfy2kRgVsFawNzmjuHc2YmYRmagcEPdU9",
+				},
+				{
+					path:               "m/0/2147483647'/1",
+					extendedPublicKey:  "xpub6DF8uhdarytz3FWdA8TvFSvvAh8dP3283MY7p2V4SeE2wyWmG5mg5EwVvmdMVCQcoNJxGoWaU9DCWh89LojfZ537wTfunKau47EL2dhHKon",
+					extendedPrivateKey: "xprv9zFnWC6h2cLgpmSA46vutJzBcfJ8yaJGg8cX1e5StJh45BBciYTRXSd25UEPVuesF9yog62tGAQtHjXajPPdbRCHuWS6T8XA2ECKADdw4Ef",
+				},
+				{
+					path:               "m/0/2147483647'/1/2147483646'",
+					extendedPublicKey:  "xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL",
+					extendedPrivateKey: "xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc",
+				},
+				{
+					path:               "m/0/2147483647'/1/2147483646'/2",
+					extendedPublicKey:  "xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt",
+					extendedPrivateKey: "xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j",
+				},
+			},
+		},
+		{
+			seed:    "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542",
+			version: KaspaMainnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "kpub2C2CKMtB3F5r3wjbXwWLFJma1qYbiwYu6ExiV29srXigVgCRjXVqMgJceejBAcFkKg31vPRGcnPCzdDL9VA1fAG67ykFHmvSsmRNqKZg1po",
+					extendedPrivateKey: "kprv5y2qurMHCsXYqTf8RuyKtApqToi7KUq3j237gdkGJCBhcssHBzBaosz8oLmx7z2ojdeiG4CQrWZqZr24mUnuWaapvktoS6pvNXmkszbHsFE",
+				},
+				{
+					path:               "m/0",
+					extendedPublicKey:  "kpub2FHwb5a8XFuvaDKtfitDK7B6NoHrRv3BeQi5eqBKvwaeBeeQJnquWWssE7h4xhGBXzXBncR21sEB9ne22drRzkvNQ2UvC84q1FY3GVzjZr1",
+					extendedPrivateKey: "kprv62JbBa3EgtMdMjFRZhMCwyEMpmTN2TKLHBnUrSmiNc3fJrKFmFXexiZPNr3km3se9HtYA4c9HfyxvMetKmHxSokDvwJrpazfVwgKFEAdr1L",
+				},
+				{
+					path:               "m/0/2147483647'",
+					extendedPublicKey:  "kpub2GSzqgbeuA62k5Y56AsrnSremYWkyQCsjZncaE66agM2dwsrvgGDiafTqVwBiRsHKWSjSTGdK5empTWMoYLYiuNzw76yYrKqsdoe7KSjW9n",
+					extendedPrivateKey: "kprv63TeSB4m4nXjXbTbz9LrRJuvDWgGZwV2NLs1mqgV2Lp3m9YiP8wyAnLyzCXjVJc83XDRw5onLgV5MbPf48u627BnMfYCb6ivHj1r1gJwAAq",
+				},
+				{
+					path:               "m/0/2147483647'/1",
+					extendedPublicKey:  "kpub2KFyFhab4oPDqhDD9q2RkPnt75PG5b8941HURHkRtZhUJmk2EBnvcV3qgJ8KWJZZuguHH6MrxCxbuFmNiSmVzEquXPJpmPm3oQUbMkjZU7h",
+					extendedPrivateKey: "kprv66GcrC3hERpvdD8k3oVRPFr9Z3Ymg8QHgnMscuLpLEAVRyQsgeUg4gjMpzjMX1opMUa8gNtAkEAHgJAp72RU2b15VS51SChJmXSaVHSHVgJ",
+				},
+				{
+					path:               "m/0/2147483647'/1/2147483646'",
+					extendedPublicKey:  "kpub2LS1AfWwgCLw8eSotJqy7uV51ord8Zke5i1Mx1SqjKxim84xKriw91QwJxFphg61s8Yv5bRZzpHTYtvmQKt1hbYMoHdKKgrTfdZAtem6FS7",
+					extendedPrivateKey: "kprv67Sem9z3qpndvANLnHJxkmYLTn28j72niV5m9d3EAzRjtKjonKQgbD6TThTk9SC6u3rpzCfA8bjsVRGBcyKxiRgFKNcKaQiw77T6Z6V751r",
+				},
+				{
+					path:               "m/0/2147483647'/1/2147483646'/2",
+					extendedPublicKey:  "kpub2Mo386jTCNfAsudhcNyf6es3QsPjNtfijsdFMnoLN7pJqKQXVVehKaMwPML6qFSiPBm9MWvytXJT3KzGERZv1rPwSTTQG49CLvkMZGaHgA1",
+					extendedPrivateKey: "kprv68ogibCZN16sfRZEWMSejWvJrqZEyRwsNeheZQPionHKxX5NwxLSmn3TY78kJTHAwMiZGxHyahaZXy9hMHhBmQQy8E7pdpreoUnedk17vmK",
+				},
+			},
+		},
+		{
+			seed:    "4b381541583be4423346c643850da4b320e46a87ae3d2a4e6da11eba819cd4acba45d239319ac14f863b8d5ab5a0d0c64d2e8a1e7d1457df2e5a3c51c73235be",
+			version: BitcoinMainnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "xpub661MyMwAqRbcEZVB4dScxMAdx6d4nFc9nvyvH3v4gJL378CSRZiYmhRoP7mBy6gSPSCYk6SzXPTf3ND1cZAceL7SfJ1Z3GC8vBgp2epUt13",
+					extendedPrivateKey: "xprv9s21ZrQH143K25QhxbucbDDuQ4naNntJRi4KUfWT7xo4EKsHt2QJDu7KXp1A3u7Bi1j8ph3EGsZ9Xvz9dGuVrtHHs7pXeTzjuxBrCmmhgC6",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "xpub68NZiKmJWnxxS6aaHmn81bvJeTESw724CRDs6HbuccFQN9Ku14VQrADWgqbhhTHBaohPX4CjNLf9fq9MYo6oDaPPLPxSb7gwQN3ih19Zm4Y",
+					extendedPrivateKey: "xprv9uPDJpEQgRQfDcW7BkF7eTya6RPxXeJCqCJGHuCJ4GiRVLzkTXBAJMu2qaMWPrS7AANYqdq6vcBcBUdJCVVFceUvJFjaPdGZ2y9WACViL4L",
+				},
+			},
+		},
+		{
+			seed:    "4b381541583be4423346c643850da4b320e46a87ae3d2a4e6da11eba819cd4acba45d239319ac14f863b8d5ab5a0d0c64d2e8a1e7d1457df2e5a3c51c73235be",
+			version: KaspaMainnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "kpub2C2CKMtB3F5r31Bm4L18TJ2btUshUoiAoajGtKBS8DoUTvRhPfjoJwY98eG9zCqPVknskPJH1TD4RvrEzCCT5VvEFDeU2LNHfUw5MkWwVFF",
+					extendedPrivateKey: "kprv5y2qurMHCsXYpX7HxJU86A5sLT3D5LzKSMog5vmpZtGVb86Yr8RYm9DfHLW851G8pLKTpytWkwJYvVdNzuwLJ465T3TSdYAtfFS7Xx2owSo",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "kpub2EPQ4KiJicTCEYHAHULdWYnGaqV5df85D4yDhYsH4XiqiwZ9yAWfPQKrSN6fiZS8h8HiXM41rQQZ4PnavS8dekCAvKbMaBs69fHz2AFgp7S",
+					extendedPrivateKey: "kprv61Q3epBQtEtu24ChBSod9QqY2oebECQDqr3cuATfWCBrr9E1RdCQqc1Nb6rUQxb4GUxsqvgPQfw1a3GXa8X63pHhtBNVNhShnGPmVHW2UAU",
+				},
+			},
+		},
+		{
+			seed:    "4b381541583be4423346c643850da4b320e46a87ae3d2a4e6da11eba819cd4acba45d239319ac14f863b8d5ab5a0d0c64d2e8a1e7d1457df2e5a3c51c73235be",
+			version: KaspaTestnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "ktub1vi816jr1DomD4Qct6C1n3qZ98kvP4TCgq21QUVkJ1xTADT74WfStAQAv5NA5ACsLYRLiAEs2YMz91LoWXh6YY6bFd6BidfhFE7dxhSVK7H",
+					extendedPrivateKey: "ktrv5himbbCxArFTzaL9n4f1Qutpb6vRybjMKc6Qc668jgRUHR7xWyMCLN5h4mc89xdcf7wvnkq6n2TUda7wXFRym6GSTSuAKqUJEzcg8smnbs9",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "ktub1y5Kk4ZygbB7QbW27EXWqJbDqVNJXus76KFxDiBbEKspREaZe1SJxdBtDoCfoWocXuvBV7zbsVZUmUH9SmdH7nNXvj35GVAVjQUYd41EFiN",
+					extendedPrivateKey: "ktrv5k5yLZ35rDcpC7RZ1CzWUAeVHTXp8T9Fj6LMRKmyfzLqYSFR6U84QpsQNXxUVuxY7GbLohcyRm5wH7m66U1jWrU4tapD4zk7N1aL6C3rnp7",
+				},
+			},
+		},
+		{
+			seed:    "4b381541583be4423346c643850da4b320e46a87ae3d2a4e6da11eba819cd4acba45d239319ac14f863b8d5ab5a0d0c64d2e8a1e7d1457df2e5a3c51c73235be",
+			version: KaspaDevnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "kdub4zZ57oeuxodRE6ZjEtX6KnUpww7hSaHbRg745QUF8GSe3Y6EKZa6tkjuJvCw8cTYni4dWNgh3tr5HoER7gTzpEyQcM4VNJmxyu9H2k8C3SL",
+					extendedPrivateKey: "kdrv8mZiiJ828S581cVG8rz5xeY6PuHD37Zk4TBTH24dZvufAjm5n2FrLxRRTcSuDQtJ7HbDayGvoNwZnN1Z8QCt2o9FpAsTyWaZyfeKCvnUDsn",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "kdub52vGrmV3eAzmRdf8U2rbP3EVeHj5bRhVqALzteA64aN1JZDgu4LxyDXcce3Sry4Hz5ZUHLSRtr3ZvGAm3vQBPVFMHT1NvAGmU5WBhDEnN5e",
+					extendedPrivateKey: "kdrv8ovvTFx9ooSUD9afN1Kb1uHm6FtbBxyeTwRQ6FkUWEq2RktYMX2iRRD8mNoFZNDDZSEdbv4oT7a2RuehhcndnZLtFJnWifrP6gbyAN52eWX",
+				},
+			},
+		},
+		{
+			seed:    "4b381541583be4423346c643850da4b320e46a87ae3d2a4e6da11eba819cd4acba45d239319ac14f863b8d5ab5a0d0c64d2e8a1e7d1457df2e5a3c51c73235be",
+			version: KaspaSimnetPrivate,
+			paths: []testPath{
+				{
+					path:               "m",
+					extendedPublicKey:  "ksub8Dp9tLuSVjDpAnKQ1sEyyZfrLiYhUQ7jd5TD92tgeX7mTQdyCwZYDNuhiN2WC23BwhGKgKvoJaWSPERp5gSuV4h2QEt1JwHyrSCjoEf5VHR",
+					extendedPrivateKey: "ksrv3h87jvsCMMY9HKHc8DaPaA1jmh2mK4vq3mrRrWrPEFKNcvPCaYjx2tHqYCMLkgu1qonn9ScvgKMgeUG5pkgVdEgB579ytyAQBLrnezdttFb",
+				},
+				{
+					path:               "m/0'",
+					extendedPublicKey:  "ksub8GBMdJjaB6bANKQoF1aV2pRX35A5dFXe2Zh9xGaXaq38iRmRnSLQHqhR25s1vNdw94mATHgY9Xhw1hNA1vP64Jxy5LptrnnnLcZeTbX9Sng",
+					extendedPrivateKey: "ksrv3jVKUthL2iuVUrP1MMutdQmQU3e9TvLjTG6NfkYEAZEjswWfA3Wp7M5Yqxhh6eDwHxSCAPQoL3z9J1uEPyGFNzsoWF52e8SDJMpScP8xuRw",
+				},
+			},
+		},
+	}
+
+	for i, vector := range testVectors {
+		seed, err := hex.DecodeString(vector.seed)
+		if err != nil {
+			t.Fatalf("DecodeString: %+v", err)
+		}
+
+		masterKey, err := NewMaster(seed, vector.version)
+		if err != nil {
+			t.Fatalf("NewMaster: %+v", err)
+		}
+
+		for j, path := range vector.paths {
+			extendedPrivateKey, err := masterKey.DeriveFromPath(path.path)
+			if err != nil {
+				t.Fatalf("Path: %+v", err)
+			}
+
+			if extendedPrivateKey.String() != path.extendedPrivateKey {
+				t.Fatalf("Test (%d, %d): expected extended private key %s but got %s", i, j, path.extendedPrivateKey, extendedPrivateKey.String())
+			}
+
+			decodedExtendedPrivateKey, err := DeserializeExtendedKey(extendedPrivateKey.String())
+			if err != nil {
+				t.Fatalf("DeserializeExtendedKey: %+v", err)
+			}
+
+			if extendedPrivateKey.String() != decodedExtendedPrivateKey.String() {
+				t.Fatalf("Test (%d, %d): deserializing and serializing the extended private key didn't preserve the data", i, j)
+			}
+
+			extendedPublicKey, err := extendedPrivateKey.Public()
+			if err != nil {
+				t.Fatalf("Public: %+v", err)
+			}
+
+			if extendedPublicKey.String() != path.extendedPublicKey {
+				t.Fatalf("Test (%d, %d): expected extended public key %s but got %s", i, j, path.extendedPublicKey, extendedPublicKey.String())
+			}
+
+			decodedExtendedPublicKey, err := DeserializeExtendedKey(extendedPublicKey.String())
+			if err != nil {
+				t.Fatalf("DeserializeExtendedPublicKey: %+v", err)
+			}
+
+			if extendedPublicKey.String() != decodedExtendedPublicKey.String() {
+				t.Fatalf("Test (%d, %d): deserializing and serializing the ext pub didn't preserve the data", i, j)
+			}
+		}
+	}
+}
+
+// TestExtendedKey_DeriveFromPath checks that path that derive from extended private key and extended
+// public key lead to the same public keys.
+func TestExtendedKey_DeriveFromPath(t *testing.T) {
+	r := rand.New(rand.NewSource(0))
+	seed, err := GenerateSeed()
+	if err != nil {
+		t.Fatalf("GenerateSeed: %+v", err)
+	}
+
+	master, err := NewMaster(seed, KaspaMainnetPrivate)
+	if err != nil {
+		t.Fatalf("GenerateSeed: %+v", err)
+	}
+
+	masterPublic, err := master.Public()
+	if err != nil {
+		t.Fatalf("Public: %+v", err)
+	}
+
+	for i := 0; i < 10; i++ {
+		numIndexes := 1 + r.Intn(100)
+		indexes := make([]string, numIndexes)
+		for i := 0; i < numIndexes; i++ {
+			index := r.Intn(hardenedIndexStart)
+			indexes[i] = strconv.Itoa(int(index))
+		}
+
+		indexesStr := strings.Join(indexes, "/")
+		pathPrivate := "m/" + indexesStr
+		pathPublic := "M/" + indexesStr
+
+		extendedPrivateKey, err := master.DeriveFromPath(pathPrivate)
+		if err != nil {
+			t.Fatalf("Path: %+v", err)
+		}
+
+		extendedPublicKeyFromPrivateKey, err := extendedPrivateKey.Public()
+		if err != nil {
+			t.Fatalf("Public: %+v", err)
+		}
+
+		extendedPublicKey, err := masterPublic.DeriveFromPath(pathPublic)
+		if err != nil {
+			t.Fatalf("Path: %+v", err)
+		}
+
+		if extendedPublicKeyFromPrivateKey.String() != extendedPublicKey.String() {
+			t.Fatalf("Path gives different result from private and public master keys")
+		}
+	}
+}
+
+// TestPublicParentPublicChildDerivation was copied and modified from https://github.com/tyler-smith/go-bip32/blob/master/bip32_test.go
+func TestPublicParentPublicChildDerivation(t *testing.T) {
+	// Generated using https://iancoleman.github.io/bip39/
+	// Root key:
+	// xprv9s21ZrQH143K2Cfj4mDZBcEecBmJmawReGwwoAou2zZzG45bM6cFPJSvobVTCB55L6Ld2y8RzC61CpvadeAnhws3CHsMFhNjozBKGNgucYm
+	// Derivation Path m/44'/60'/0'/0:
+	// xprv9zy5o7z1GMmYdaeQdmabWFhUf52Ytbpe3G5hduA4SghboqWe7aDGWseN8BJy1GU72wPjkCbBE1hvbXYqpCecAYdaivxjNnBoSNxwYD4wHpW
+	// xpub6DxSCdWu6jKqr4isjo7bsPeDD6s3J4YVQV1JSHZg12Eagdqnf7XX4fxqyW2sLhUoFWutL7tAELU2LiGZrEXtjVbvYptvTX5Eoa4Mamdjm9u
+	extendedMasterPublic, err := DeserializeExtendedKey("xpub6DxSCdWu6jKqr4isjo7bsPeDD6s3J4YVQV1JSHZg12Eagdqnf7XX4fxqyW2sLhUoFWutL7tAELU2LiGZrEXtjVbvYptvTX5Eoa4Mamdjm9u")
+	if err != nil {
+		t.Fatalf("DeserializeExtendedPublicKey: %+v", err)
+	}
+
+	type testChildKey struct {
+		pathFragment uint32
+		privKey      string
+		pubKey       string
+		hexPubKey    string
+	}
+
+	expectedChildren := []testChildKey{
+		{pathFragment: 0, hexPubKey: "0243187e1a2ba9ba824f5f81090650c8f4faa82b7baf93060d10b81f4b705afd46"},
+		{pathFragment: 1, hexPubKey: "023790d11eb715c4320d8e31fba3a09b700051dc2cdbcce03f44b11c274d1e220b"},
+		{pathFragment: 2, hexPubKey: "0302c5749c3c75cea234878ae3f4d8f65b75d584bcd7ed0943b016d6f6b59a2bad"},
+		{pathFragment: 3, hexPubKey: "03f0440c94e5b14ea5b15875934597afff541bec287c6e65dc1102cafc07f69699"},
+		{pathFragment: 4, hexPubKey: "026419d0d8996707605508ac44c5871edc7fe206a79ef615b74f2eea09c5852e2b"},
+		{pathFragment: 5, hexPubKey: "02f63c6f195eea98bdb163c4a094260dea71d264b21234bed4df3899236e6c2298"},
+		{pathFragment: 6, hexPubKey: "02d74709cd522081064858f393d009ead5a0ecd43ede3a1f57befcc942025cb5f9"},
+		{pathFragment: 7, hexPubKey: "03e54bb92630c943d38bbd8a4a2e65fca7605e672d30a0e545a7198cbb60729ceb"},
+		{pathFragment: 8, hexPubKey: "027e9d5acd14d39c4938697fba388cd2e8f31fc1c5dc02fafb93a10a280de85199"},
+		{pathFragment: 9, hexPubKey: "02a167a9f0d57468fb6abf2f3f7967e2cadf574314753a06a9ef29bc76c54638d2"},
+
+		{pathFragment: 100, hexPubKey: "020db9ba00ddf68428e3f5bfe54252bbcd75b21e42f51bf3bfc4172bf0e5fa7905"},
+		{pathFragment: 101, hexPubKey: "0299e3790956570737d6164e6fcda5a3daa304065ca95ba46bc73d436b84f34d46"},
+		{pathFragment: 102, hexPubKey: "0202e0732c4c5d2b1036af173640e01957998cfd4f9cdaefab6ffe76eb869e2c59"},
+		{pathFragment: 103, hexPubKey: "03d050adbd996c0c5d737ff638402dfbb8c08e451fef10e6d62fb57887c1ac6cb2"},
+		{pathFragment: 104, hexPubKey: "038d466399e2d68b4b16043ad4d88893b3b2f84fc443368729a973df1e66f4f530"},
+		{pathFragment: 105, hexPubKey: "034811e2f0c8c50440c08c2c9799b99c911c036e877e8325386ff61723ae3ffdce"},
+		{pathFragment: 106, hexPubKey: "026339fd5842921888e711a6ba9104a5f0c94cc0569855273cf5faefdfbcd3cc29"},
+		{pathFragment: 107, hexPubKey: "02833705c1069fab2aa92c6b0dac27807290d72e9f52378d493ac44849ca003b22"},
+		{pathFragment: 108, hexPubKey: "032d2639bde1eb7bdf8444bd4f6cc26a9d1bdecd8ea15fac3b992c3da68d9d1df5"},
+		{pathFragment: 109, hexPubKey: "02479c6d4a64b93a2f4343aa862c938fbc658c99219dd7bebb4830307cbd76c9e9"},
+	}
+
+	for i, child := range expectedChildren {
+		extendedPublicKey, err := extendedMasterPublic.Child(child.pathFragment)
+		if err != nil {
+			t.Fatalf("Child: %+v", err)
+		}
+
+		publicKey, err := extendedPublicKey.PublicKey()
+		if err != nil {
+			t.Fatalf("PublicKey: %+v", err)
+		}
+
+		pubKeyBytes, err := publicKey.Serialize()
+		if err != nil {
+			t.Fatalf("Serialize: %+v", err)
+		}
+
+		pubKeyHex := hex.EncodeToString(pubKeyBytes[:])
+		if child.hexPubKey != pubKeyHex {
+			t.Fatalf("Test #%d: expected public key %s but got %s", i, child.hexPubKey, pubKeyHex)
+		}
+	}
+}

cmd/kaspawallet/libkaspawallet/bip32/child_key_derivation.go

@@ -0,0 +1,152 @@
+package bip32
+
+import (
+	"encoding/binary"
+	"github.com/kaspanet/go-secp256k1"
+	"github.com/pkg/errors"
+)
+
+const hardenedIndexStart = 0x80000000
+
+// NewMaster returns a new extended private key based on the given seed and version
+func NewMaster(seed []byte, version [4]byte) (*ExtendedKey, error) {
+	mac := newHMACWriter([]byte("Bitcoin seed"))
+	mac.InfallibleWrite(seed)
+	I := mac.Sum(nil)
+
+	var iL, iR [32]byte
+	copy(iL[:], I[:32])
+	copy(iR[:], I[32:])
+
+	privateKey, err := secp256k1.DeserializeECDSAPrivateKeyFromSlice(iL[:])
+	if err != nil {
+		return nil, err
+	}
+
+	return &ExtendedKey{
+		privateKey:        privateKey,
+		Version:           version,
+		Depth:             0,
+		ParentFingerprint: [4]byte{},
+		ChildNumber:       0,
+		ChainCode:         iR,
+	}, nil
+}
+
+func isHardened(i uint32) bool {
+	return i >= hardenedIndexStart
+}
+
+// Child return the i'th derived child of extKey.
+func (extKey *ExtendedKey) Child(i uint32) (*ExtendedKey, error) {
+	I, err := extKey.calcI(i)
+	if err != nil {
+		return nil, err
+	}
+
+	var iL, iR [32]byte
+	copy(iL[:], I[:32])
+	copy(iR[:], I[32:])
+
+	fingerPrint, err := extKey.calcFingerprint()
+	if err != nil {
+		return nil, err
+	}
+
+	childExt := &ExtendedKey{
+		Version:           extKey.Version,
+		Depth:             extKey.Depth + 1,
+		ParentFingerprint: fingerPrint,
+		ChildNumber:       i,
+		ChainCode:         iR,
+	}
+
+	if extKey.privateKey != nil {
+		childExt.privateKey, err = privateKeyAdd(extKey.privateKey, iL)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		publicKey, err := extKey.PublicKey()
+		if err != nil {
+			return nil, err
+		}
+
+		childExt.publicKey, err = pointAdd(publicKey, iL)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return childExt, nil
+}
+
+func (extKey *ExtendedKey) calcFingerprint() ([4]byte, error) {
+	publicKey, err := extKey.PublicKey()
+	if err != nil {
+		return [4]byte{}, err
+	}
+
+	serializedPoint, err := publicKey.Serialize()
+	if err != nil {
+		return [4]byte{}, err
+	}
+
+	hash := hash160(serializedPoint[:])
+	var fingerprint [4]byte
+	copy(fingerprint[:], hash[:4])
+	return fingerprint, nil
+}
+
+func privateKeyAdd(k *secp256k1.ECDSAPrivateKey, tweak [32]byte) (*secp256k1.ECDSAPrivateKey, error) {
+	kCopy := *k
+	err := kCopy.Add(tweak)
+	if err != nil {
+		return nil, err
+	}
+
+	return &kCopy, nil
+}
+
+func (extKey *ExtendedKey) calcI(i uint32) ([]byte, error) {
+	if isHardened(i) && !extKey.IsPrivate() {
+		return nil, errors.Errorf("Cannot calculate hardened child for public key")
+	}
+
+	mac := newHMACWriter(extKey.ChainCode[:])
+	if isHardened(i) {
+		mac.InfallibleWrite([]byte{0x00})
+		mac.InfallibleWrite(extKey.privateKey.Serialize()[:])
+	} else {
+		publicKey, err := extKey.PublicKey()
+		if err != nil {
+			return nil, err
+		}
+
+		serializedPublicKey, err := publicKey.Serialize()
+		if err != nil {
+			return nil, errors.Wrap(err, "error serializing public key")
+		}
+
+		mac.InfallibleWrite(serializedPublicKey[:])
+	}
+
+	mac.InfallibleWrite(serializeUint32(i))
+	return mac.Sum(nil), nil
+}
+
+func serializeUint32(v uint32) []byte {
+	serialized := make([]byte, 4)
+	binary.BigEndian.PutUint32(serialized, v)
+	return serialized
+}
+
+func pointAdd(point *secp256k1.ECDSAPublicKey, tweak [32]byte) (*secp256k1.ECDSAPublicKey, error) {
+	pointCopy := *point
+	err := pointCopy.Add(tweak)
+	if err != nil {
+		return nil, err
+	}
+
+	return &pointCopy, nil
+}

cmd/kaspawallet/libkaspawallet/bip32/extended_key.go

@@ -0,0 +1,104 @@
+package bip32
+
+import (
+	"github.com/btcsuite/btcutil/base58"
+	"github.com/kaspanet/go-secp256k1"
+	"github.com/pkg/errors"
+)
+
+// ExtendedKey is a bip32 extended key
+type ExtendedKey struct {
+	privateKey        *secp256k1.ECDSAPrivateKey
+	publicKey         *secp256k1.ECDSAPublicKey
+	Version           [4]byte
+	Depth             uint8
+	ParentFingerprint [4]byte
+	ChildNumber       uint32
+	ChainCode         [32]byte
+}
+
+// PrivateKey returns the ECDSA private key associated with the extended key
+func (extKey *ExtendedKey) PrivateKey() *secp256k1.ECDSAPrivateKey {
+	return extKey.privateKey
+}
+
+// PublicKey returns the ECDSA public key associated with the extended key
+func (extKey *ExtendedKey) PublicKey() (*secp256k1.ECDSAPublicKey, error) {
+	if extKey.publicKey != nil {
+		return extKey.publicKey, nil
+	}
+
+	publicKey, err := extKey.privateKey.ECDSAPublicKey()
+	if err != nil {
+		return nil, err
+	}
+
+	extKey.publicKey = publicKey
+	return publicKey, nil
+}
+
+// IsPrivate returns whether the extended key is private
+func (extKey *ExtendedKey) IsPrivate() bool {
+	return extKey.privateKey != nil
+}
+
+// Public returns public version of the extended key
+func (extKey *ExtendedKey) Public() (*ExtendedKey, error) {
+	if !extKey.IsPrivate() {
+		return extKey, nil
+	}
+
+	publicKey, err := extKey.PublicKey()
+	if err != nil {
+		return nil, errors.Wrap(err, "error calculating publicKey")
+	}
+
+	version, err := toPublicVersion(extKey.Version)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ExtendedKey{
+		publicKey:         publicKey,
+		Version:           version,
+		Depth:             extKey.Depth,
+		ParentFingerprint: extKey.ParentFingerprint,
+		ChildNumber:       extKey.ChildNumber,
+		ChainCode:         extKey.ChainCode,
+	}, nil
+}
+
+// DeriveFromPath returns the extended key derived from the given path
+func (extKey *ExtendedKey) DeriveFromPath(pathString string) (*ExtendedKey, error) {
+	path, err := parsePath(pathString)
+	if err != nil {
+		return nil, err
+	}
+
+	return extKey.path(path)
+}
+
+func (extKey *ExtendedKey) path(path *path) (*ExtendedKey, error) {
+	descendantExtKey := extKey
+	for _, index := range path.indexes {
+		var err error
+		descendantExtKey, err = descendantExtKey.Child(index)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if path.isPublic {
+		return descendantExtKey.Public()
+	}
+
+	return descendantExtKey, nil
+}
+
+func (extKey *ExtendedKey) String() string {
+	serialized, err := extKey.serialize()
+	if err != nil {
+		panic(errors.Wrap(err, "error serializing key"))
+	}
+	return base58.Encode(serialized)
+}

cmd/kaspawallet/libkaspawallet/bip32/hash.go

@@ -0,0 +1,58 @@
+package bip32
+
+import (
+	"bytes"
+	"crypto/hmac"
+	"crypto/sha256"
+	"crypto/sha512"
+	"github.com/pkg/errors"
+	"golang.org/x/crypto/ripemd160"
+	"hash"
+)
+
+func newHMACWriter(key []byte) hmacWriter {
+	return hmacWriter{
+		Hash: hmac.New(sha512.New, key),
+	}
+}
+
+type hmacWriter struct {
+	hash.Hash
+}
+
+func (hw hmacWriter) InfallibleWrite(p []byte) {
+	_, err := hw.Write(p)
+	if err != nil {
+		panic(errors.Wrap(err, "writing to hmac should never fail"))
+	}
+}
+
+func calcChecksum(data []byte) []byte {
+	return doubleSha256(data)[:checkSumLen]
+}
+
+func doubleSha256(data []byte) []byte {
+	inner := sha256.Sum256(data)
+	outer := sha256.Sum256(inner[:])
+	return outer[:]
+}
+
+// validateChecksum validates that the last checkSumLen bytes of the
+// given data are its valid checksum.
+func validateChecksum(data []byte) error {
+	checksum := data[len(data)-checkSumLen:]
+	expectedChecksum := calcChecksum(data[:len(data)-checkSumLen])
+	if !bytes.Equal(expectedChecksum, checksum) {
+		return errors.Errorf("expected checksum %x but got %x", expectedChecksum, checksum)
+	}
+
+	return nil
+}
+
+func hash160(data []byte) []byte {
+	sha := sha256.New()
+	ripe := ripemd160.New()
+	sha.Write(data)
+	ripe.Write(sha.Sum(nil))
+	return ripe.Sum(nil)
+}

cmd/kaspawallet/libkaspawallet/bip32/path.go

@@ -0,0 +1,60 @@
+package bip32
+
+import (
+	"github.com/pkg/errors"
+	"strconv"
+	"strings"
+)
+
+type path struct {
+	isPublic bool
+	indexes  []uint32
+}
+
+func parsePath(pathString string) (*path, error) {
+	parts := strings.Split(pathString, "/")
+	isPublic := false
+	switch parts[0] {
+	case "m":
+		isPublic = false
+	case "M":
+		isPublic = true
+	default:
+		return nil, errors.Errorf("%s is an invalid extended key type", parts[0])
+	}
+
+	indexParts := parts[1:]
+	indexes := make([]uint32, len(indexParts))
+	for i, part := range indexParts {
+		var err error
+		indexes[i], err = parseIndex(part)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return &path{
+		isPublic: isPublic,
+		indexes:  indexes,
+	}, nil
+}
+
+func parseIndex(indexString string) (uint32, error) {
+	const isHardenedSuffix = "'"
+	isHardened := strings.HasSuffix(indexString, isHardenedSuffix)
+	trimmedIndexString := strings.TrimSuffix(indexString, isHardenedSuffix)
+	index, err := strconv.Atoi(trimmedIndexString)
+	if err != nil {
+		return 0, err
+	}
+
+	if index >= hardenedIndexStart {
+		return 0, errors.Errorf("max index value is %d but got %d", hardenedIndexStart, index)
+	}
+
+	if isHardened {
+		return uint32(index) + hardenedIndexStart, nil
+	}
+
+	return uint32(index), nil
+}

cmd/kaspawallet/libkaspawallet/bip32/serialization.go

@@ -0,0 +1,148 @@
+package bip32
+
+import (
+	"encoding/binary"
+	"github.com/kaspanet/go-secp256k1"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32/base58"
+	"github.com/pkg/errors"
+)
+
+const (
+	versionSerializationLen     = 4
+	depthSerializationLen       = 1
+	fingerprintSerializationLen = 4
+	childNumberSerializationLen = 4
+	chainCodeSerializationLen   = 32
+	keySerializationLen         = 33
+	checkSumLen                 = 4
+)
+
+const extendedKeySerializationLen = versionSerializationLen +
+	depthSerializationLen +
+	fingerprintSerializationLen +
+	childNumberSerializationLen +
+	chainCodeSerializationLen +
+	keySerializationLen +
+	checkSumLen
+
+// DeserializeExtendedKey deserialized the given base58 string and returns an extended key
+func DeserializeExtendedKey(extKeyString string) (*ExtendedKey, error) {
+	serializedBytes := base58.Decode(extKeyString)
+	return deserializeExtendedPrivateKey(serializedBytes)
+}
+
+func deserializeExtendedPrivateKey(serialized []byte) (*ExtendedKey, error) {
+	if len(serialized) != extendedKeySerializationLen {
+		return nil, errors.Errorf("key length must be %d bytes but got %d", extendedKeySerializationLen, len(serialized))
+	}
+
+	err := validateChecksum(serialized)
+	if err != nil {
+		return nil, err
+	}
+
+	extKey := &ExtendedKey{}
+
+	copy(extKey.Version[:], serialized[:versionSerializationLen])
+	extKey.Depth = serialized[versionSerializationLen]
+	copy(extKey.ParentFingerprint[:], serialized[versionSerializationLen+depthSerializationLen:])
+	extKey.ChildNumber = binary.BigEndian.Uint32(
+		serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen:],
+	)
+	copy(
+		extKey.ChainCode[:],
+		serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen+childNumberSerializationLen:],
+	)
+
+	isPrivate := isPrivateVersion(extKey.Version)
+	if isPrivate {
+		privateKeyPadding := serialized[versionSerializationLen+
+			depthSerializationLen+
+			fingerprintSerializationLen+
+			childNumberSerializationLen+
+			chainCodeSerializationLen]
+		if privateKeyPadding != 0 {
+			return nil, errors.Errorf("expected 0 padding for private key but got %d", privateKeyPadding)
+		}
+
+		extKey.privateKey, err = secp256k1.DeserializeECDSAPrivateKeyFromSlice(serialized[versionSerializationLen+
+			depthSerializationLen+
+			fingerprintSerializationLen+
+			childNumberSerializationLen+
+			chainCodeSerializationLen+1 : versionSerializationLen+
+			depthSerializationLen+
+			fingerprintSerializationLen+
+			childNumberSerializationLen+
+			chainCodeSerializationLen+
+			keySerializationLen])
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		extKey.publicKey, err = secp256k1.DeserializeECDSAPubKey(serialized[versionSerializationLen+
+			depthSerializationLen+
+			fingerprintSerializationLen+
+			childNumberSerializationLen+
+			chainCodeSerializationLen : versionSerializationLen+
+			depthSerializationLen+
+			fingerprintSerializationLen+
+			childNumberSerializationLen+
+			chainCodeSerializationLen+
+			keySerializationLen])
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return extKey, nil
+}
+
+func (extKey *ExtendedKey) serialize() ([]byte, error) {
+	var serialized [extendedKeySerializationLen]byte
+	copy(serialized[:], extKey.Version[:])
+	serialized[versionSerializationLen] = extKey.Depth
+	copy(serialized[versionSerializationLen+depthSerializationLen:], extKey.ParentFingerprint[:])
+	binary.BigEndian.PutUint32(
+		serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen:],
+		extKey.ChildNumber,
+	)
+	copy(
+		serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen+childNumberSerializationLen:],
+		extKey.ChainCode[:],
+	)
+
+	if extKey.IsPrivate() {
+		serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen+childNumberSerializationLen+chainCodeSerializationLen] = 0
+		copy(
+			serialized[versionSerializationLen+
+				depthSerializationLen+
+				fingerprintSerializationLen+
+				childNumberSerializationLen+
+				chainCodeSerializationLen+
+				1:],
+			extKey.privateKey.Serialize()[:],
+		)
+	} else {
+		publicKey, err := extKey.PublicKey()
+		if err != nil {
+			return nil, err
+		}
+
+		serializedPublicKey, err := publicKey.Serialize()
+		if err != nil {
+			return nil, err
+		}
+
+		copy(
+			serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen+childNumberSerializationLen+chainCodeSerializationLen:],
+			serializedPublicKey[:],
+		)
+	}
+
+	checkSum := doubleSha256(serialized[:len(serialized)-checkSumLen])
+	copy(
+		serialized[versionSerializationLen+depthSerializationLen+fingerprintSerializationLen+childNumberSerializationLen+chainCodeSerializationLen+keySerializationLen:],
+		checkSum,
+	)
+	return serialized[:], nil
+}

cmd/kaspawallet/libkaspawallet/bip32/version.go

@@ -0,0 +1,137 @@
+package bip32
+
+import "github.com/pkg/errors"
+
+// BitcoinMainnetPrivate is the version that is used for
+// bitcoin mainnet bip32 private extended keys.
+// Ecnodes to xprv in base58.
+var BitcoinMainnetPrivate = [4]byte{
+	0x04,
+	0x88,
+	0xad,
+	0xe4,
+}
+
+// BitcoinMainnetPublic is the version that is used for
+// bitcoin mainnet bip32 public extended keys.
+// Ecnodes to xpub in base58.
+var BitcoinMainnetPublic = [4]byte{
+	0x04,
+	0x88,
+	0xb2,
+	0x1e,
+}
+
+// KaspaMainnetPrivate is the version that is used for
+// kaspa mainnet bip32 private extended keys.
+// Ecnodes to xprv in base58.
+var KaspaMainnetPrivate = [4]byte{
+	0x03,
+	0x8f,
+	0x2e,
+	0xf4,
+}
+
+// KaspaMainnetPublic is the version that is used for
+// kaspa mainnet bip32 public extended keys.
+// Ecnodes to kpub in base58.
+var KaspaMainnetPublic = [4]byte{
+	0x03,
+	0x8f,
+	0x33,
+	0x2e,
+}
+
+// KaspaTestnetPrivate is the version that is used for
+// kaspa testnet bip32 public extended keys.
+// Ecnodes to ktrv in base58.
+var KaspaTestnetPrivate = [4]byte{
+	0x03,
+	0x90,
+	0x9e,
+	0x07,
+}
+
+// KaspaTestnetPublic is the version that is used for
+// kaspa testnet bip32 public extended keys.
+// Ecnodes to ktub in base58.
+var KaspaTestnetPublic = [4]byte{
+	0x03,
+	0x90,
+	0xa2,
+	0x41,
+}
+
+// KaspaDevnetPrivate is the version that is used for
+// kaspa devnet bip32 public extended keys.
+// Ecnodes to kdrv in base58.
+var KaspaDevnetPrivate = [4]byte{
+	0x03,
+	0x8b,
+	0x3d,
+	0x80,
+}
+
+// KaspaDevnetPublic is the version that is used for
+// kaspa devnet bip32 public extended keys.
+// Ecnodes to xdub in base58.
+var KaspaDevnetPublic = [4]byte{
+	0x03,
+	0x8b,
+	0x41,
+	0xba,
+}
+
+// KaspaSimnetPrivate is the version that is used for
+// kaspa simnet bip32 public extended keys.
+// Ecnodes to ksrv in base58.
+var KaspaSimnetPrivate = [4]byte{
+	0x03,
+	0x90,
+	0x42,
+	0x42,
+}
+
+// KaspaSimnetPublic is the version that is used for
+// kaspa simnet bip32 public extended keys.
+// Ecnodes to xsub in base58.
+var KaspaSimnetPublic = [4]byte{
+	0x03,
+	0x90,
+	0x46,
+	0x7d,
+}
+
+func toPublicVersion(version [4]byte) ([4]byte, error) {
+	switch version {
+	case BitcoinMainnetPrivate:
+		return BitcoinMainnetPublic, nil
+	case KaspaMainnetPrivate:
+		return KaspaMainnetPublic, nil
+	case KaspaTestnetPrivate:
+		return KaspaTestnetPublic, nil
+	case KaspaDevnetPrivate:
+		return KaspaDevnetPublic, nil
+	case KaspaSimnetPrivate:
+		return KaspaSimnetPublic, nil
+	}
+
+	return [4]byte{}, errors.Errorf("unknown version %x", version)
+}
+
+func isPrivateVersion(version [4]byte) bool {
+	switch version {
+	case BitcoinMainnetPrivate:
+		return true
+	case KaspaMainnetPrivate:
+		return true
+	case KaspaTestnetPrivate:
+		return true
+	case KaspaDevnetPrivate:
+		return true
+	case KaspaSimnetPrivate:
+		return true
+	}
+
+	return false
+}

cmd/kaspawallet/libkaspawallet/bip39.go

@@ -0,0 +1,82 @@
+package libkaspawallet
+
+import (
+	"fmt"
+
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/pkg/errors"
+	"github.com/tyler-smith/go-bip39"
+)
+
+// CreateMnemonic creates a new bip-39 compatible mnemonic
+func CreateMnemonic() (string, error) {
+	const bip39BitSize = 256
+	entropy, _ := bip39.NewEntropy(bip39BitSize)
+	return bip39.NewMnemonic(entropy)
+}
+
+// Purpose and CoinType constants
+const (
+	SingleSignerPurpose = 44
+	// Note: this is not entirely compatible to BIP 45 since
+	// BIP 45 doesn't have a coin type in its derivation path.
+	MultiSigPurpose = 45
+	// TODO: Register the coin type in https://github.com/satoshilabs/slips/blob/master/slip-0044.md
+	CoinType = 111111
+)
+
+func defaultPath(isMultisig bool) string {
+	purpose := SingleSignerPurpose
+	if isMultisig {
+		purpose = MultiSigPurpose
+	}
+
+	return fmt.Sprintf("m/%d'/%d'/0'", purpose, CoinType)
+}
+
+// MasterPublicKeyFromMnemonic returns the master public key with the correct derivation for the given mnemonic.
+func MasterPublicKeyFromMnemonic(params *dagconfig.Params, mnemonic string, isMultisig bool) (string, error) {
+	path := defaultPath(isMultisig)
+	extendedKey, err := extendedKeyFromMnemonicAndPath(mnemonic, path, params)
+	if err != nil {
+		return "", err
+	}
+
+	extendedPublicKey, err := extendedKey.Public()
+	if err != nil {
+		return "", err
+	}
+
+	return extendedPublicKey.String(), nil
+}
+
+func extendedKeyFromMnemonicAndPath(mnemonic string, path string, params *dagconfig.Params) (*bip32.ExtendedKey, error) {
+	seed := bip39.NewSeed(mnemonic, "")
+	version, err := versionFromParams(params)
+	if err != nil {
+		return nil, err
+	}
+
+	master, err := bip32.NewMasterWithPath(seed, version, path)
+	if err != nil {
+		return nil, err
+	}
+
+	return master, nil
+}
+
+func versionFromParams(params *dagconfig.Params) ([4]byte, error) {
+	switch params.Name {
+	case dagconfig.MainnetParams.Name:
+		return bip32.KaspaMainnetPrivate, nil
+	case dagconfig.TestnetParams.Name:
+		return bip32.KaspaTestnetPrivate, nil
+	case dagconfig.DevnetParams.Name:
+		return bip32.KaspaDevnetPrivate, nil
+	case dagconfig.SimnetParams.Name:
+		return bip32.KaspaSimnetPrivate, nil
+	}
+
+	return [4]byte{}, errors.Errorf("unknown network %s", params.Name)
+}

cmd/kaspawallet/libkaspawallet/keypair.go

@@ -0,0 +1,169 @@
+package libkaspawallet
+
+import (
+	"math"
+	"sort"
+	"strings"
+
+	"github.com/kaspanet/go-secp256k1"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/kaspanet/kaspad/util"
+	"github.com/pkg/errors"
+)
+
+// CreateKeyPair generates a private-public key pair
+func CreateKeyPair(ecdsa bool) ([]byte, []byte, error) {
+	if ecdsa {
+		return createKeyPairECDSA()
+	}
+
+	return createKeyPair()
+}
+
+func createKeyPair() ([]byte, []byte, error) {
+	keyPair, err := secp256k1.GenerateSchnorrKeyPair()
+	if err != nil {
+		return nil, nil, errors.Wrap(err, "Failed to generate private key")
+	}
+	publicKey, err := keyPair.SchnorrPublicKey()
+	if err != nil {
+		return nil, nil, errors.Wrap(err, "Failed to generate public key")
+	}
+	publicKeySerialized, err := publicKey.Serialize()
+	if err != nil {
+		return nil, nil, errors.Wrap(err, "Failed to serialize public key")
+	}
+
+	return keyPair.SerializePrivateKey()[:], publicKeySerialized[:], nil
+}
+
+func createKeyPairECDSA() ([]byte, []byte, error) {
+	keyPair, err := secp256k1.GenerateECDSAPrivateKey()
+	if err != nil {
+		return nil, nil, errors.Wrap(err, "Failed to generate private key")
+	}
+	publicKey, err := keyPair.ECDSAPublicKey()
+	if err != nil {
+		return nil, nil, errors.Wrap(err, "Failed to generate public key")
+	}
+	publicKeySerialized, err := publicKey.Serialize()
+	if err != nil {
+		return nil, nil, errors.Wrap(err, "Failed to serialize public key")
+	}
+
+	return keyPair.Serialize()[:], publicKeySerialized[:], nil
+}
+
+// PublicKeyFromPrivateKey returns the public key associated with a private key
+func PublicKeyFromPrivateKey(privateKeyBytes []byte) ([]byte, error) {
+	keyPair, err := secp256k1.DeserializeSchnorrPrivateKeyFromSlice(privateKeyBytes)
+	if err != nil {
+		return nil, errors.Wrap(err, "Failed to deserialize private key")
+	}
+
+	publicKey, err := keyPair.SchnorrPublicKey()
+	if err != nil {
+		return nil, errors.Wrap(err, "Failed to generate public key")
+	}
+
+	publicKeySerialized, err := publicKey.Serialize()
+	if err != nil {
+		return nil, errors.Wrap(err, "Failed to serialize public key")
+	}
+
+	return publicKeySerialized[:], nil
+}
+
+// Address returns the address associated with the given public keys and minimum signatures parameters.
+func Address(params *dagconfig.Params, extendedPublicKeys []string, minimumSignatures uint32, path string, ecdsa bool) (util.Address, error) {
+	sortPublicKeys(extendedPublicKeys)
+	if uint32(len(extendedPublicKeys)) < minimumSignatures {
+		return nil, errors.Errorf("The minimum amount of signatures (%d) is greater than the amount of "+
+			"provided public keys (%d)", minimumSignatures, len(extendedPublicKeys))
+	}
+
+	if len(extendedPublicKeys) == 1 {
+		return p2pkAddress(params, extendedPublicKeys[0], path, ecdsa)
+	}
+
+	redeemScript, err := multiSigRedeemScript(extendedPublicKeys, minimumSignatures, path, ecdsa)
+	if err != nil {
+		return nil, err
+	}
+
+	return util.NewAddressScriptHash(redeemScript, params.Prefix)
+}
+
+func p2pkAddress(params *dagconfig.Params, extendedPublicKey string, path string, ecdsa bool) (util.Address, error) {
+	extendedKey, err := bip32.DeserializeExtendedKey(extendedPublicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	derivedKey, err := extendedKey.DeriveFromPath(path)
+	if err != nil {
+		return nil, err
+	}
+
+	publicKey, err := derivedKey.PublicKey()
+	if err != nil {
+		return nil, err
+	}
+
+	if ecdsa {
+		serializedECDSAPublicKey, err := publicKey.Serialize()
+		if err != nil {
+			return nil, err
+		}
+		return util.NewAddressPublicKeyECDSA(serializedECDSAPublicKey[:], params.Prefix)
+	}
+
+	schnorrPublicKey, err := publicKey.ToSchnorr()
+	if err != nil {
+		return nil, err
+	}
+
+	serializedSchnorrPublicKey, err := schnorrPublicKey.Serialize()
+	if err != nil {
+		return nil, err
+	}
+
+	return util.NewAddressPublicKey(serializedSchnorrPublicKey[:], params.Prefix)
+}
+
+func sortPublicKeys(extendedPublicKeys []string) {
+	sort.Slice(extendedPublicKeys, func(i, j int) bool {
+		return strings.Compare(extendedPublicKeys[i], extendedPublicKeys[j]) < 0
+	})
+}
+
+func cosignerIndex(extendedPublicKey string, sortedExtendedPublicKeys []string) (uint32, error) {
+	cosignerIndex := sort.SearchStrings(sortedExtendedPublicKeys, extendedPublicKey)
+	if cosignerIndex == len(sortedExtendedPublicKeys) {
+		return 0, errors.Errorf("couldn't find extended public key %s", extendedPublicKey)
+	}
+
+	return uint32(cosignerIndex), nil
+}
+
+// MinimumCosignerIndex returns the minimum index for the cosigner from the set of all extended public keys.
+func MinimumCosignerIndex(cosignerExtendedPublicKeys, allExtendedPublicKeys []string) (uint32, error) {
+	allExtendedPublicKeysCopy := make([]string, len(allExtendedPublicKeys))
+	copy(allExtendedPublicKeysCopy, allExtendedPublicKeys)
+	sortPublicKeys(allExtendedPublicKeysCopy)
+
+	min := uint32(math.MaxUint32)
+	for _, extendedPublicKey := range cosignerExtendedPublicKeys {
+		cosignerIndex, err := cosignerIndex(extendedPublicKey, allExtendedPublicKeysCopy)
+		if err != nil {
+			return 0, err
+		}
+
+		if cosignerIndex < min {
+			min = cosignerIndex
+		}
+	}
+
+	return min, nil
+}

cmd/kaspawallet/libkaspawallet/serialization/protoserialization/generate.go

@@ -0,0 +1,3 @@
+//go:generate protoc --go_out=. --go-grpc_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative wallet.proto
+
+package protoserialization

cmd/kaspawallet/libkaspawallet/serialization/protoserialization/wallet.pb.go

@@ -0,0 +1,926 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.12.3
+// source: wallet.proto
+
+package protoserialization
+
+import (
+	proto "github.com/golang/protobuf/proto"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type PartiallySignedTransaction struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Tx                    *TransactionMessage     `protobuf:"bytes,1,opt,name=tx,proto3" json:"tx,omitempty"`
+	PartiallySignedInputs []*PartiallySignedInput `protobuf:"bytes,2,rep,name=partiallySignedInputs,proto3" json:"partiallySignedInputs,omitempty"`
+}
+
+func (x *PartiallySignedTransaction) Reset() {
+	*x = PartiallySignedTransaction{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PartiallySignedTransaction) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PartiallySignedTransaction) ProtoMessage() {}
+
+func (x *PartiallySignedTransaction) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PartiallySignedTransaction.ProtoReflect.Descriptor instead.
+func (*PartiallySignedTransaction) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *PartiallySignedTransaction) GetTx() *TransactionMessage {
+	if x != nil {
+		return x.Tx
+	}
+	return nil
+}
+
+func (x *PartiallySignedTransaction) GetPartiallySignedInputs() []*PartiallySignedInput {
+	if x != nil {
+		return x.PartiallySignedInputs
+	}
+	return nil
+}
+
+type PartiallySignedInput struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	RedeemScript         []byte                 `protobuf:"bytes,1,opt,name=redeemScript,proto3" json:"redeemScript,omitempty"`
+	PrevOutput           *TransactionOutput     `protobuf:"bytes,2,opt,name=prevOutput,proto3" json:"prevOutput,omitempty"`
+	MinimumSignatures    uint32                 `protobuf:"varint,3,opt,name=minimumSignatures,proto3" json:"minimumSignatures,omitempty"`
+	PubKeySignaturePairs []*PubKeySignaturePair `protobuf:"bytes,4,rep,name=pubKeySignaturePairs,proto3" json:"pubKeySignaturePairs,omitempty"`
+	DerivationPath       string                 `protobuf:"bytes,5,opt,name=DerivationPath,proto3" json:"DerivationPath,omitempty"`
+}
+
+func (x *PartiallySignedInput) Reset() {
+	*x = PartiallySignedInput{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PartiallySignedInput) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PartiallySignedInput) ProtoMessage() {}
+
+func (x *PartiallySignedInput) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PartiallySignedInput.ProtoReflect.Descriptor instead.
+func (*PartiallySignedInput) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *PartiallySignedInput) GetRedeemScript() []byte {
+	if x != nil {
+		return x.RedeemScript
+	}
+	return nil
+}
+
+func (x *PartiallySignedInput) GetPrevOutput() *TransactionOutput {
+	if x != nil {
+		return x.PrevOutput
+	}
+	return nil
+}
+
+func (x *PartiallySignedInput) GetMinimumSignatures() uint32 {
+	if x != nil {
+		return x.MinimumSignatures
+	}
+	return 0
+}
+
+func (x *PartiallySignedInput) GetPubKeySignaturePairs() []*PubKeySignaturePair {
+	if x != nil {
+		return x.PubKeySignaturePairs
+	}
+	return nil
+}
+
+func (x *PartiallySignedInput) GetDerivationPath() string {
+	if x != nil {
+		return x.DerivationPath
+	}
+	return ""
+}
+
+type PubKeySignaturePair struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ExtendedPubKey string `protobuf:"bytes,1,opt,name=extendedPubKey,proto3" json:"extendedPubKey,omitempty"`
+	Signature      []byte `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty"`
+}
+
+func (x *PubKeySignaturePair) Reset() {
+	*x = PubKeySignaturePair{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PubKeySignaturePair) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PubKeySignaturePair) ProtoMessage() {}
+
+func (x *PubKeySignaturePair) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PubKeySignaturePair.ProtoReflect.Descriptor instead.
+func (*PubKeySignaturePair) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *PubKeySignaturePair) GetExtendedPubKey() string {
+	if x != nil {
+		return x.ExtendedPubKey
+	}
+	return ""
+}
+
+func (x *PubKeySignaturePair) GetSignature() []byte {
+	if x != nil {
+		return x.Signature
+	}
+	return nil
+}
+
+type SubnetworkId struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Bytes []byte `protobuf:"bytes,1,opt,name=bytes,proto3" json:"bytes,omitempty"`
+}
+
+func (x *SubnetworkId) Reset() {
+	*x = SubnetworkId{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SubnetworkId) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SubnetworkId) ProtoMessage() {}
+
+func (x *SubnetworkId) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SubnetworkId.ProtoReflect.Descriptor instead.
+func (*SubnetworkId) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *SubnetworkId) GetBytes() []byte {
+	if x != nil {
+		return x.Bytes
+	}
+	return nil
+}
+
+type TransactionMessage struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Version      uint32               `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
+	Inputs       []*TransactionInput  `protobuf:"bytes,2,rep,name=inputs,proto3" json:"inputs,omitempty"`
+	Outputs      []*TransactionOutput `protobuf:"bytes,3,rep,name=outputs,proto3" json:"outputs,omitempty"`
+	LockTime     uint64               `protobuf:"varint,4,opt,name=lockTime,proto3" json:"lockTime,omitempty"`
+	SubnetworkId *SubnetworkId        `protobuf:"bytes,5,opt,name=subnetworkId,proto3" json:"subnetworkId,omitempty"`
+	Gas          uint64               `protobuf:"varint,6,opt,name=gas,proto3" json:"gas,omitempty"`
+	Payload      []byte               `protobuf:"bytes,8,opt,name=payload,proto3" json:"payload,omitempty"`
+}
+
+func (x *TransactionMessage) Reset() {
+	*x = TransactionMessage{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TransactionMessage) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TransactionMessage) ProtoMessage() {}
+
+func (x *TransactionMessage) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TransactionMessage.ProtoReflect.Descriptor instead.
+func (*TransactionMessage) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *TransactionMessage) GetVersion() uint32 {
+	if x != nil {
+		return x.Version
+	}
+	return 0
+}
+
+func (x *TransactionMessage) GetInputs() []*TransactionInput {
+	if x != nil {
+		return x.Inputs
+	}
+	return nil
+}
+
+func (x *TransactionMessage) GetOutputs() []*TransactionOutput {
+	if x != nil {
+		return x.Outputs
+	}
+	return nil
+}
+
+func (x *TransactionMessage) GetLockTime() uint64 {
+	if x != nil {
+		return x.LockTime
+	}
+	return 0
+}
+
+func (x *TransactionMessage) GetSubnetworkId() *SubnetworkId {
+	if x != nil {
+		return x.SubnetworkId
+	}
+	return nil
+}
+
+func (x *TransactionMessage) GetGas() uint64 {
+	if x != nil {
+		return x.Gas
+	}
+	return 0
+}
+
+func (x *TransactionMessage) GetPayload() []byte {
+	if x != nil {
+		return x.Payload
+	}
+	return nil
+}
+
+type TransactionInput struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	PreviousOutpoint *Outpoint `protobuf:"bytes,1,opt,name=previousOutpoint,proto3" json:"previousOutpoint,omitempty"`
+	SignatureScript  []byte    `protobuf:"bytes,2,opt,name=signatureScript,proto3" json:"signatureScript,omitempty"`
+	Sequence         uint64    `protobuf:"varint,3,opt,name=sequence,proto3" json:"sequence,omitempty"`
+}
+
+func (x *TransactionInput) Reset() {
+	*x = TransactionInput{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TransactionInput) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TransactionInput) ProtoMessage() {}
+
+func (x *TransactionInput) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TransactionInput.ProtoReflect.Descriptor instead.
+func (*TransactionInput) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *TransactionInput) GetPreviousOutpoint() *Outpoint {
+	if x != nil {
+		return x.PreviousOutpoint
+	}
+	return nil
+}
+
+func (x *TransactionInput) GetSignatureScript() []byte {
+	if x != nil {
+		return x.SignatureScript
+	}
+	return nil
+}
+
+func (x *TransactionInput) GetSequence() uint64 {
+	if x != nil {
+		return x.Sequence
+	}
+	return 0
+}
+
+type Outpoint struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	TransactionId *TransactionId `protobuf:"bytes,1,opt,name=transactionId,proto3" json:"transactionId,omitempty"`
+	Index         uint32         `protobuf:"varint,2,opt,name=index,proto3" json:"index,omitempty"`
+}
+
+func (x *Outpoint) Reset() {
+	*x = Outpoint{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Outpoint) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Outpoint) ProtoMessage() {}
+
+func (x *Outpoint) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Outpoint.ProtoReflect.Descriptor instead.
+func (*Outpoint) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *Outpoint) GetTransactionId() *TransactionId {
+	if x != nil {
+		return x.TransactionId
+	}
+	return nil
+}
+
+func (x *Outpoint) GetIndex() uint32 {
+	if x != nil {
+		return x.Index
+	}
+	return 0
+}
+
+type TransactionId struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Bytes []byte `protobuf:"bytes,1,opt,name=bytes,proto3" json:"bytes,omitempty"`
+}
+
+func (x *TransactionId) Reset() {
+	*x = TransactionId{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TransactionId) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TransactionId) ProtoMessage() {}
+
+func (x *TransactionId) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TransactionId.ProtoReflect.Descriptor instead.
+func (*TransactionId) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *TransactionId) GetBytes() []byte {
+	if x != nil {
+		return x.Bytes
+	}
+	return nil
+}
+
+type ScriptPublicKey struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Script  []byte `protobuf:"bytes,1,opt,name=script,proto3" json:"script,omitempty"`
+	Version uint32 `protobuf:"varint,2,opt,name=version,proto3" json:"version,omitempty"`
+}
+
+func (x *ScriptPublicKey) Reset() {
+	*x = ScriptPublicKey{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ScriptPublicKey) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ScriptPublicKey) ProtoMessage() {}
+
+func (x *ScriptPublicKey) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ScriptPublicKey.ProtoReflect.Descriptor instead.
+func (*ScriptPublicKey) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *ScriptPublicKey) GetScript() []byte {
+	if x != nil {
+		return x.Script
+	}
+	return nil
+}
+
+func (x *ScriptPublicKey) GetVersion() uint32 {
+	if x != nil {
+		return x.Version
+	}
+	return 0
+}
+
+type TransactionOutput struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value           uint64           `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
+	ScriptPublicKey *ScriptPublicKey `protobuf:"bytes,2,opt,name=scriptPublicKey,proto3" json:"scriptPublicKey,omitempty"`
+}
+
+func (x *TransactionOutput) Reset() {
+	*x = TransactionOutput{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_wallet_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TransactionOutput) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TransactionOutput) ProtoMessage() {}
+
+func (x *TransactionOutput) ProtoReflect() protoreflect.Message {
+	mi := &file_wallet_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TransactionOutput.ProtoReflect.Descriptor instead.
+func (*TransactionOutput) Descriptor() ([]byte, []int) {
+	return file_wallet_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *TransactionOutput) GetValue() uint64 {
+	if x != nil {
+		return x.Value
+	}
+	return 0
+}
+
+func (x *TransactionOutput) GetScriptPublicKey() *ScriptPublicKey {
+	if x != nil {
+		return x.ScriptPublicKey
+	}
+	return nil
+}
+
+var File_wallet_proto protoreflect.FileDescriptor
+
+var file_wallet_proto_rawDesc = []byte{
+	0x0a, 0x0c, 0x77, 0x61, 0x6c, 0x6c, 0x65, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x12,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69,
+	0x6f, 0x6e, 0x22, 0xb4, 0x01, 0x0a, 0x1a, 0x50, 0x61, 0x72, 0x74, 0x69, 0x61, 0x6c, 0x6c, 0x79,
+	0x53, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f,
+	0x6e, 0x12, 0x36, 0x0a, 0x02, 0x74, 0x78, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x26, 0x2e,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69,
+	0x6f, 0x6e, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x4d, 0x65,
+	0x73, 0x73, 0x61, 0x67, 0x65, 0x52, 0x02, 0x74, 0x78, 0x12, 0x5e, 0x0a, 0x15, 0x70, 0x61, 0x72,
+	0x74, 0x69, 0x61, 0x6c, 0x6c, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x49, 0x6e, 0x70, 0x75,
+	0x74, 0x73, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x28, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x50, 0x61,
+	0x72, 0x74, 0x69, 0x61, 0x6c, 0x6c, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x49, 0x6e, 0x70,
+	0x75, 0x74, 0x52, 0x15, 0x70, 0x61, 0x72, 0x74, 0x69, 0x61, 0x6c, 0x6c, 0x79, 0x53, 0x69, 0x67,
+	0x6e, 0x65, 0x64, 0x49, 0x6e, 0x70, 0x75, 0x74, 0x73, 0x22, 0xb4, 0x02, 0x0a, 0x14, 0x50, 0x61,
+	0x72, 0x74, 0x69, 0x61, 0x6c, 0x6c, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x49, 0x6e, 0x70,
+	0x75, 0x74, 0x12, 0x22, 0x0a, 0x0c, 0x72, 0x65, 0x64, 0x65, 0x65, 0x6d, 0x53, 0x63, 0x72, 0x69,
+	0x70, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x0c, 0x72, 0x65, 0x64, 0x65, 0x65, 0x6d,
+	0x53, 0x63, 0x72, 0x69, 0x70, 0x74, 0x12, 0x45, 0x0a, 0x0a, 0x70, 0x72, 0x65, 0x76, 0x4f, 0x75,
+	0x74, 0x70, 0x75, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x25, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e,
+	0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x75, 0x74, 0x70, 0x75,
+	0x74, 0x52, 0x0a, 0x70, 0x72, 0x65, 0x76, 0x4f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x12, 0x2c, 0x0a,
+	0x11, 0x6d, 0x69, 0x6e, 0x69, 0x6d, 0x75, 0x6d, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72,
+	0x65, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x11, 0x6d, 0x69, 0x6e, 0x69, 0x6d, 0x75,
+	0x6d, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x73, 0x12, 0x5b, 0x0a, 0x14, 0x70,
+	0x75, 0x62, 0x4b, 0x65, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x50, 0x61,
+	0x69, 0x72, 0x73, 0x18, 0x04, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x27, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x50,
+	0x75, 0x62, 0x4b, 0x65, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x50, 0x61,
+	0x69, 0x72, 0x52, 0x14, 0x70, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74,
+	0x75, 0x72, 0x65, 0x50, 0x61, 0x69, 0x72, 0x73, 0x12, 0x26, 0x0a, 0x0e, 0x44, 0x65, 0x72, 0x69,
+	0x76, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x50, 0x61, 0x74, 0x68, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x0e, 0x44, 0x65, 0x72, 0x69, 0x76, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x50, 0x61, 0x74, 0x68,
+	0x22, 0x5b, 0x0a, 0x13, 0x50, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74,
+	0x75, 0x72, 0x65, 0x50, 0x61, 0x69, 0x72, 0x12, 0x26, 0x0a, 0x0e, 0x65, 0x78, 0x74, 0x65, 0x6e,
+	0x64, 0x65, 0x64, 0x50, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x0e, 0x65, 0x78, 0x74, 0x65, 0x6e, 0x64, 0x65, 0x64, 0x50, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x12,
+	0x1c, 0x0a, 0x09, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x18, 0x02, 0x20, 0x01,
+	0x28, 0x0c, 0x52, 0x09, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x22, 0x24, 0x0a,
+	0x0c, 0x53, 0x75, 0x62, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x49, 0x64, 0x12, 0x14, 0x0a,
+	0x05, 0x62, 0x79, 0x74, 0x65, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x05, 0x62, 0x79,
+	0x74, 0x65, 0x73, 0x22, 0xbb, 0x02, 0x0a, 0x12, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74,
+	0x69, 0x6f, 0x6e, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x76, 0x65,
+	0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x76, 0x65, 0x72,
+	0x73, 0x69, 0x6f, 0x6e, 0x12, 0x3c, 0x0a, 0x06, 0x69, 0x6e, 0x70, 0x75, 0x74, 0x73, 0x18, 0x02,
+	0x20, 0x03, 0x28, 0x0b, 0x32, 0x24, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69,
+	0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61,
+	0x63, 0x74, 0x69, 0x6f, 0x6e, 0x49, 0x6e, 0x70, 0x75, 0x74, 0x52, 0x06, 0x69, 0x6e, 0x70, 0x75,
+	0x74, 0x73, 0x12, 0x3f, 0x0a, 0x07, 0x6f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x73, 0x18, 0x03, 0x20,
+	0x03, 0x28, 0x0b, 0x32, 0x25, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61,
+	0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63,
+	0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x52, 0x07, 0x6f, 0x75, 0x74, 0x70,
+	0x75, 0x74, 0x73, 0x12, 0x1a, 0x0a, 0x08, 0x6c, 0x6f, 0x63, 0x6b, 0x54, 0x69, 0x6d, 0x65, 0x18,
+	0x04, 0x20, 0x01, 0x28, 0x04, 0x52, 0x08, 0x6c, 0x6f, 0x63, 0x6b, 0x54, 0x69, 0x6d, 0x65, 0x12,
+	0x44, 0x0a, 0x0c, 0x73, 0x75, 0x62, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x49, 0x64, 0x18,
+	0x05, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x20, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72,
+	0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x53, 0x75, 0x62, 0x6e, 0x65,
+	0x74, 0x77, 0x6f, 0x72, 0x6b, 0x49, 0x64, 0x52, 0x0c, 0x73, 0x75, 0x62, 0x6e, 0x65, 0x74, 0x77,
+	0x6f, 0x72, 0x6b, 0x49, 0x64, 0x12, 0x10, 0x0a, 0x03, 0x67, 0x61, 0x73, 0x18, 0x06, 0x20, 0x01,
+	0x28, 0x04, 0x52, 0x03, 0x67, 0x61, 0x73, 0x12, 0x18, 0x0a, 0x07, 0x70, 0x61, 0x79, 0x6c, 0x6f,
+	0x61, 0x64, 0x18, 0x08, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x07, 0x70, 0x61, 0x79, 0x6c, 0x6f, 0x61,
+	0x64, 0x22, 0xa2, 0x01, 0x0a, 0x10, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f,
+	0x6e, 0x49, 0x6e, 0x70, 0x75, 0x74, 0x12, 0x48, 0x0a, 0x10, 0x70, 0x72, 0x65, 0x76, 0x69, 0x6f,
+	0x75, 0x73, 0x4f, 0x75, 0x74, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b,
+	0x32, 0x1c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x4f, 0x75, 0x74, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x52, 0x10,
+	0x70, 0x72, 0x65, 0x76, 0x69, 0x6f, 0x75, 0x73, 0x4f, 0x75, 0x74, 0x70, 0x6f, 0x69, 0x6e, 0x74,
+	0x12, 0x28, 0x0a, 0x0f, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x53, 0x63, 0x72,
+	0x69, 0x70, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x0f, 0x73, 0x69, 0x67, 0x6e, 0x61,
+	0x74, 0x75, 0x72, 0x65, 0x53, 0x63, 0x72, 0x69, 0x70, 0x74, 0x12, 0x1a, 0x0a, 0x08, 0x73, 0x65,
+	0x71, 0x75, 0x65, 0x6e, 0x63, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x04, 0x52, 0x08, 0x73, 0x65,
+	0x71, 0x75, 0x65, 0x6e, 0x63, 0x65, 0x22, 0x69, 0x0a, 0x08, 0x4f, 0x75, 0x74, 0x70, 0x6f, 0x69,
+	0x6e, 0x74, 0x12, 0x47, 0x0a, 0x0d, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f,
+	0x6e, 0x49, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x21, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x54,
+	0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x49, 0x64, 0x52, 0x0d, 0x74, 0x72,
+	0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x49, 0x64, 0x12, 0x14, 0x0a, 0x05, 0x69,
+	0x6e, 0x64, 0x65, 0x78, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x05, 0x69, 0x6e, 0x64, 0x65,
+	0x78, 0x22, 0x25, 0x0a, 0x0d, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e,
+	0x49, 0x64, 0x12, 0x14, 0x0a, 0x05, 0x62, 0x79, 0x74, 0x65, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x0c, 0x52, 0x05, 0x62, 0x79, 0x74, 0x65, 0x73, 0x22, 0x43, 0x0a, 0x0f, 0x53, 0x63, 0x72, 0x69,
+	0x70, 0x74, 0x50, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x4b, 0x65, 0x79, 0x12, 0x16, 0x0a, 0x06, 0x73,
+	0x63, 0x72, 0x69, 0x70, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x06, 0x73, 0x63, 0x72,
+	0x69, 0x70, 0x74, 0x12, 0x18, 0x0a, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x02,
+	0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x22, 0x78, 0x0a,
+	0x11, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x75, 0x74, 0x70,
+	0x75, 0x74, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x04, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x12, 0x4d, 0x0a, 0x0f, 0x73, 0x63, 0x72, 0x69,
+	0x70, 0x74, 0x50, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x4b, 0x65, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28,
+	0x0b, 0x32, 0x23, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69,
+	0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x53, 0x63, 0x72, 0x69, 0x70, 0x74, 0x50, 0x75, 0x62,
+	0x6c, 0x69, 0x63, 0x4b, 0x65, 0x79, 0x52, 0x0f, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x50, 0x75,
+	0x62, 0x6c, 0x69, 0x63, 0x4b, 0x65, 0x79, 0x42, 0x5c, 0x5a, 0x5a, 0x67, 0x69, 0x74, 0x68, 0x75,
+	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x6e, 0x65, 0x74, 0x2f, 0x6b,
+	0x61, 0x73, 0x70, 0x61, 0x64, 0x2f, 0x63, 0x6d, 0x64, 0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x77,
+	0x61, 0x6c, 0x6c, 0x65, 0x74, 0x2f, 0x6c, 0x69, 0x62, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x77, 0x61,
+	0x6c, 0x6c, 0x65, 0x74, 0x2f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a, 0x61, 0x74, 0x69,
+	0x6f, 0x6e, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x69, 0x7a,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_wallet_proto_rawDescOnce sync.Once
+	file_wallet_proto_rawDescData = file_wallet_proto_rawDesc
+)
+
+func file_wallet_proto_rawDescGZIP() []byte {
+	file_wallet_proto_rawDescOnce.Do(func() {
+		file_wallet_proto_rawDescData = protoimpl.X.CompressGZIP(file_wallet_proto_rawDescData)
+	})
+	return file_wallet_proto_rawDescData
+}
+
+var file_wallet_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_wallet_proto_goTypes = []interface{}{
+	(*PartiallySignedTransaction)(nil), // 0: protoserialization.PartiallySignedTransaction
+	(*PartiallySignedInput)(nil),       // 1: protoserialization.PartiallySignedInput
+	(*PubKeySignaturePair)(nil),        // 2: protoserialization.PubKeySignaturePair
+	(*SubnetworkId)(nil),               // 3: protoserialization.SubnetworkId
+	(*TransactionMessage)(nil),         // 4: protoserialization.TransactionMessage
+	(*TransactionInput)(nil),           // 5: protoserialization.TransactionInput
+	(*Outpoint)(nil),                   // 6: protoserialization.Outpoint
+	(*TransactionId)(nil),              // 7: protoserialization.TransactionId
+	(*ScriptPublicKey)(nil),            // 8: protoserialization.ScriptPublicKey
+	(*TransactionOutput)(nil),          // 9: protoserialization.TransactionOutput
+}
+var file_wallet_proto_depIdxs = []int32{
+	4,  // 0: protoserialization.PartiallySignedTransaction.tx:type_name -> protoserialization.TransactionMessage
+	1,  // 1: protoserialization.PartiallySignedTransaction.partiallySignedInputs:type_name -> protoserialization.PartiallySignedInput
+	9,  // 2: protoserialization.PartiallySignedInput.prevOutput:type_name -> protoserialization.TransactionOutput
+	2,  // 3: protoserialization.PartiallySignedInput.pubKeySignaturePairs:type_name -> protoserialization.PubKeySignaturePair
+	5,  // 4: protoserialization.TransactionMessage.inputs:type_name -> protoserialization.TransactionInput
+	9,  // 5: protoserialization.TransactionMessage.outputs:type_name -> protoserialization.TransactionOutput
+	3,  // 6: protoserialization.TransactionMessage.subnetworkId:type_name -> protoserialization.SubnetworkId
+	6,  // 7: protoserialization.TransactionInput.previousOutpoint:type_name -> protoserialization.Outpoint
+	7,  // 8: protoserialization.Outpoint.transactionId:type_name -> protoserialization.TransactionId
+	8,  // 9: protoserialization.TransactionOutput.scriptPublicKey:type_name -> protoserialization.ScriptPublicKey
+	10, // [10:10] is the sub-list for method output_type
+	10, // [10:10] is the sub-list for method input_type
+	10, // [10:10] is the sub-list for extension type_name
+	10, // [10:10] is the sub-list for extension extendee
+	0,  // [0:10] is the sub-list for field type_name
+}
+
+func init() { file_wallet_proto_init() }
+func file_wallet_proto_init() {
+	if File_wallet_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_wallet_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PartiallySignedTransaction); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PartiallySignedInput); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PubKeySignaturePair); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SubnetworkId); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TransactionMessage); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TransactionInput); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Outpoint); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TransactionId); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ScriptPublicKey); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_wallet_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TransactionOutput); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_wallet_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   10,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_wallet_proto_goTypes,
+		DependencyIndexes: file_wallet_proto_depIdxs,
+		MessageInfos:      file_wallet_proto_msgTypes,
+	}.Build()
+	File_wallet_proto = out.File
+	file_wallet_proto_rawDesc = nil
+	file_wallet_proto_goTypes = nil
+	file_wallet_proto_depIdxs = nil
+}

cmd/kaspawallet/libkaspawallet/serialization/protoserialization/wallet.proto

@@ -0,0 +1,60 @@
+syntax = "proto3";
+package protoserialization;
+
+option go_package = "github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/serialization/protoserialization";
+
+message PartiallySignedTransaction{
+  TransactionMessage tx = 1;
+  repeated PartiallySignedInput partiallySignedInputs = 2;
+}
+
+message PartiallySignedInput{
+  bytes redeemScript = 1;
+  TransactionOutput prevOutput = 2;
+  uint32 minimumSignatures = 3;
+  repeated PubKeySignaturePair pubKeySignaturePairs = 4;
+  string DerivationPath = 5;
+}
+
+message PubKeySignaturePair{
+  string extendedPubKey = 1;
+  bytes signature = 2;
+}
+
+message SubnetworkId{
+  bytes bytes = 1;
+}
+
+message TransactionMessage{
+  uint32 version = 1;
+  repeated TransactionInput inputs = 2;
+  repeated TransactionOutput outputs = 3;
+  uint64 lockTime = 4;
+  SubnetworkId subnetworkId = 5;
+  uint64 gas = 6;
+  bytes payload = 8;
+}
+
+message TransactionInput{
+  Outpoint previousOutpoint = 1;
+  bytes signatureScript = 2;
+  uint64 sequence = 3;
+}
+
+message Outpoint{
+  TransactionId transactionId = 1;
+  uint32 index = 2;
+}
+
+message TransactionId{
+  bytes bytes = 1;
+}
+message ScriptPublicKey {
+  bytes script = 1;
+  uint32 version = 2;
+}
+
+message TransactionOutput{
+  uint64 value = 1;
+  ScriptPublicKey scriptPublicKey = 2;
+}

cmd/kaspawallet/libkaspawallet/serialization/serialization.go

@@ -0,0 +1,273 @@
+package serialization
+
+import (
+	"github.com/golang/protobuf/proto"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/serialization/protoserialization"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/subnetworks"
+	"github.com/pkg/errors"
+	"math"
+)
+
+// PartiallySignedTransaction is a type that is intended
+// to be transferred between multiple parties so each
+// party will be able to sign the transaction before
+// it's fully signed.
+type PartiallySignedTransaction struct {
+	Tx                    *externalapi.DomainTransaction
+	PartiallySignedInputs []*PartiallySignedInput
+}
+
+// PartiallySignedInput represents an input signed
+// only by some of the relevant parties.
+type PartiallySignedInput struct {
+	PrevOutput           *externalapi.DomainTransactionOutput
+	MinimumSignatures    uint32
+	PubKeySignaturePairs []*PubKeySignaturePair
+	DerivationPath       string
+}
+
+// PubKeySignaturePair is a pair of public key and (potentially) its associated signature
+type PubKeySignaturePair struct {
+	ExtendedPublicKey string
+	Signature         []byte
+}
+
+// DeserializePartiallySignedTransaction deserializes a byte slice into PartiallySignedTransaction.
+func DeserializePartiallySignedTransaction(serializedPartiallySignedTransaction []byte) (*PartiallySignedTransaction, error) {
+	protoPartiallySignedTransaction := &protoserialization.PartiallySignedTransaction{}
+	err := proto.Unmarshal(serializedPartiallySignedTransaction, protoPartiallySignedTransaction)
+	if err != nil {
+		return nil, err
+	}
+
+	return partiallySignedTransactionFromProto(protoPartiallySignedTransaction)
+}
+
+// SerializePartiallySignedTransaction serializes a PartiallySignedTransaction.
+func SerializePartiallySignedTransaction(partiallySignedTransaction *PartiallySignedTransaction) ([]byte, error) {
+	return proto.Marshal(partiallySignedTransactionToProto(partiallySignedTransaction))
+}
+
+func partiallySignedTransactionFromProto(protoPartiallySignedTransaction *protoserialization.PartiallySignedTransaction) (*PartiallySignedTransaction, error) {
+	tx, err := transactionFromProto(protoPartiallySignedTransaction.Tx)
+	if err != nil {
+		return nil, err
+	}
+
+	inputs := make([]*PartiallySignedInput, len(protoPartiallySignedTransaction.PartiallySignedInputs))
+	for i, protoInput := range protoPartiallySignedTransaction.PartiallySignedInputs {
+		inputs[i], err = partiallySignedInputFromProto(protoInput)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return &PartiallySignedTransaction{
+		Tx:                    tx,
+		PartiallySignedInputs: inputs,
+	}, nil
+}
+
+func partiallySignedTransactionToProto(partiallySignedTransaction *PartiallySignedTransaction) *protoserialization.PartiallySignedTransaction {
+	protoInputs := make([]*protoserialization.PartiallySignedInput, len(partiallySignedTransaction.PartiallySignedInputs))
+	for i, input := range partiallySignedTransaction.PartiallySignedInputs {
+		protoInputs[i] = partiallySignedInputToProto(input)
+	}
+
+	return &protoserialization.PartiallySignedTransaction{
+		Tx:                    transactionToProto(partiallySignedTransaction.Tx),
+		PartiallySignedInputs: protoInputs,
+	}
+}
+
+func partiallySignedInputFromProto(protoPartiallySignedInput *protoserialization.PartiallySignedInput) (*PartiallySignedInput, error) {
+	output, err := transactionOutputFromProto(protoPartiallySignedInput.PrevOutput)
+	if err != nil {
+		return nil, err
+	}
+
+	pubKeySignaturePairs := make([]*PubKeySignaturePair, len(protoPartiallySignedInput.PubKeySignaturePairs))
+	for i, protoPair := range protoPartiallySignedInput.PubKeySignaturePairs {
+		pubKeySignaturePairs[i] = pubKeySignaturePairFromProto(protoPair)
+	}
+
+	return &PartiallySignedInput{
+		PrevOutput:           output,
+		MinimumSignatures:    protoPartiallySignedInput.MinimumSignatures,
+		PubKeySignaturePairs: pubKeySignaturePairs,
+		DerivationPath:       protoPartiallySignedInput.DerivationPath,
+	}, nil
+}
+
+func partiallySignedInputToProto(partiallySignedInput *PartiallySignedInput) *protoserialization.PartiallySignedInput {
+	protoPairs := make([]*protoserialization.PubKeySignaturePair, len(partiallySignedInput.PubKeySignaturePairs))
+	for i, pair := range partiallySignedInput.PubKeySignaturePairs {
+		protoPairs[i] = pubKeySignaturePairToProto(pair)
+	}
+
+	return &protoserialization.PartiallySignedInput{
+		PrevOutput:           transactionOutputToProto(partiallySignedInput.PrevOutput),
+		MinimumSignatures:    partiallySignedInput.MinimumSignatures,
+		PubKeySignaturePairs: protoPairs,
+		DerivationPath:       partiallySignedInput.DerivationPath,
+	}
+}
+
+func pubKeySignaturePairFromProto(protoPubKeySignaturePair *protoserialization.PubKeySignaturePair) *PubKeySignaturePair {
+	return &PubKeySignaturePair{
+		ExtendedPublicKey: protoPubKeySignaturePair.ExtendedPubKey,
+		Signature:         protoPubKeySignaturePair.Signature,
+	}
+}
+
+func pubKeySignaturePairToProto(pubKeySignaturePair *PubKeySignaturePair) *protoserialization.PubKeySignaturePair {
+	return &protoserialization.PubKeySignaturePair{
+		ExtendedPubKey: pubKeySignaturePair.ExtendedPublicKey,
+		Signature:      pubKeySignaturePair.Signature,
+	}
+}
+
+func transactionFromProto(protoTransaction *protoserialization.TransactionMessage) (*externalapi.DomainTransaction, error) {
+	if protoTransaction.Version > math.MaxUint16 {
+		return nil, errors.Errorf("protoTransaction.Version is %d and is too big to be a uint16", protoTransaction.Version)
+	}
+
+	inputs := make([]*externalapi.DomainTransactionInput, len(protoTransaction.Inputs))
+	for i, protoInput := range protoTransaction.Inputs {
+		var err error
+		inputs[i], err = transactionInputFromProto(protoInput)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	outputs := make([]*externalapi.DomainTransactionOutput, len(protoTransaction.Outputs))
+	for i, protoOutput := range protoTransaction.Outputs {
+		var err error
+		outputs[i], err = transactionOutputFromProto(protoOutput)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	subnetworkID, err := subnetworks.FromBytes(protoTransaction.SubnetworkId.Bytes)
+	if err != nil {
+		return nil, err
+	}
+
+	return &externalapi.DomainTransaction{
+		Version:      uint16(protoTransaction.Version),
+		Inputs:       inputs,
+		Outputs:      outputs,
+		LockTime:     protoTransaction.LockTime,
+		SubnetworkID: *subnetworkID,
+		Gas:          protoTransaction.Gas,
+		Payload:      protoTransaction.Payload,
+	}, nil
+}
+
+func transactionToProto(tx *externalapi.DomainTransaction) *protoserialization.TransactionMessage {
+	protoInputs := make([]*protoserialization.TransactionInput, len(tx.Inputs))
+	for i, input := range tx.Inputs {
+		protoInputs[i] = transactionInputToProto(input)
+	}
+
+	protoOutputs := make([]*protoserialization.TransactionOutput, len(tx.Outputs))
+	for i, output := range tx.Outputs {
+		protoOutputs[i] = transactionOutputToProto(output)
+	}
+
+	return &protoserialization.TransactionMessage{
+		Version:      uint32(tx.Version),
+		Inputs:       protoInputs,
+		Outputs:      protoOutputs,
+		LockTime:     tx.LockTime,
+		SubnetworkId: &protoserialization.SubnetworkId{Bytes: tx.SubnetworkID[:]},
+		Gas:          tx.Gas,
+		Payload:      tx.Payload,
+	}
+}
+
+func transactionInputFromProto(protoInput *protoserialization.TransactionInput) (*externalapi.DomainTransactionInput, error) {
+	outpoint, err := outpointFromProto(protoInput.PreviousOutpoint)
+	if err != nil {
+		return nil, err
+	}
+
+	return &externalapi.DomainTransactionInput{
+		PreviousOutpoint: *outpoint,
+		SignatureScript:  protoInput.SignatureScript,
+		Sequence:         protoInput.Sequence,
+	}, nil
+}
+
+func transactionInputToProto(input *externalapi.DomainTransactionInput) *protoserialization.TransactionInput {
+	return &protoserialization.TransactionInput{
+		PreviousOutpoint: outpointToProto(&input.PreviousOutpoint),
+		SignatureScript:  input.SignatureScript,
+		Sequence:         input.Sequence,
+	}
+}
+
+func outpointFromProto(protoOutpoint *protoserialization.Outpoint) (*externalapi.DomainOutpoint, error) {
+	txID, err := transactionIDFromProto(protoOutpoint.TransactionId)
+	if err != nil {
+		return nil, err
+	}
+	return &externalapi.DomainOutpoint{
+		TransactionID: *txID,
+		Index:         protoOutpoint.Index,
+	}, nil
+}
+
+func outpointToProto(outpoint *externalapi.DomainOutpoint) *protoserialization.Outpoint {
+	return &protoserialization.Outpoint{
+		TransactionId: &protoserialization.TransactionId{Bytes: outpoint.TransactionID.ByteSlice()},
+		Index:         outpoint.Index,
+	}
+}
+
+func transactionIDFromProto(protoTxID *protoserialization.TransactionId) (*externalapi.DomainTransactionID, error) {
+	if protoTxID == nil {
+		return nil, errors.Errorf("protoTxID is nil")
+	}
+
+	return externalapi.NewDomainTransactionIDFromByteSlice(protoTxID.Bytes)
+}
+
+func transactionOutputFromProto(protoOutput *protoserialization.TransactionOutput) (*externalapi.DomainTransactionOutput, error) {
+	scriptPublicKey, err := scriptPublicKeyFromProto(protoOutput.ScriptPublicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	return &externalapi.DomainTransactionOutput{
+		Value:           protoOutput.Value,
+		ScriptPublicKey: scriptPublicKey,
+	}, nil
+}
+
+func transactionOutputToProto(output *externalapi.DomainTransactionOutput) *protoserialization.TransactionOutput {
+	return &protoserialization.TransactionOutput{
+		Value:           output.Value,
+		ScriptPublicKey: scriptPublicKeyToProto(output.ScriptPublicKey),
+	}
+}
+
+func scriptPublicKeyFromProto(protoScriptPublicKey *protoserialization.ScriptPublicKey) (*externalapi.ScriptPublicKey, error) {
+	if protoScriptPublicKey.Version > math.MaxUint16 {
+		return nil, errors.Errorf("protoOutput.ScriptPublicKey.Version is %d and is too big to be a uint16", protoScriptPublicKey.Version)
+	}
+	return &externalapi.ScriptPublicKey{
+		Script:  protoScriptPublicKey.Script,
+		Version: uint16(protoScriptPublicKey.Version),
+	}, nil
+}
+
+func scriptPublicKeyToProto(scriptPublicKey *externalapi.ScriptPublicKey) *protoserialization.ScriptPublicKey {
+	return &protoserialization.ScriptPublicKey{
+		Script:  scriptPublicKey.Script,
+		Version: uint32(scriptPublicKey.Version),
+	}
+}

cmd/kaspawallet/libkaspawallet/sign.go

@@ -0,0 +1,99 @@
+package libkaspawallet
+
+import (
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/serialization"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/utxo"
+	"github.com/kaspanet/kaspad/domain/dagconfig"
+	"github.com/pkg/errors"
+)
+
+func rawTxInSignature(extendedKey *bip32.ExtendedKey, tx *externalapi.DomainTransaction, idx int, hashType consensushashing.SigHashType,
+	sighashReusedValues *consensushashing.SighashReusedValues, ecdsa bool) ([]byte, error) {
+
+	privateKey := extendedKey.PrivateKey()
+	if ecdsa {
+		return txscript.RawTxInSignatureECDSA(tx, idx, hashType, privateKey, sighashReusedValues)
+	}
+
+	schnorrKeyPair, err := privateKey.ToSchnorr()
+	if err != nil {
+		return nil, err
+	}
+
+	return txscript.RawTxInSignature(tx, idx, hashType, schnorrKeyPair, sighashReusedValues)
+}
+
+// Sign signs the transaction with the given private keys
+func Sign(params *dagconfig.Params, mnemonics []string, serializedPSTx []byte, ecdsa bool) ([]byte, error) {
+	partiallySignedTransaction, err := serialization.DeserializePartiallySignedTransaction(serializedPSTx)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, mnemonic := range mnemonics {
+		err = sign(params, mnemonic, partiallySignedTransaction, ecdsa)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return serialization.SerializePartiallySignedTransaction(partiallySignedTransaction)
+}
+
+func sign(params *dagconfig.Params, mnemonic string, partiallySignedTransaction *serialization.PartiallySignedTransaction, ecdsa bool) error {
+	if isTransactionFullySigned(partiallySignedTransaction) {
+		return nil
+	}
+
+	sighashReusedValues := &consensushashing.SighashReusedValues{}
+	for i, partiallySignedInput := range partiallySignedTransaction.PartiallySignedInputs {
+		prevOut := partiallySignedInput.PrevOutput
+		partiallySignedTransaction.Tx.Inputs[i].UTXOEntry = utxo.NewUTXOEntry(
+			prevOut.Value,
+			prevOut.ScriptPublicKey,
+			false, // This is a fake value, because it's irrelevant for the signature
+			0,     // This is a fake value, because it's irrelevant for the signature
+		)
+	}
+
+	signed := false
+	for i, partiallySignedInput := range partiallySignedTransaction.PartiallySignedInputs {
+		isMultisig := len(partiallySignedInput.PubKeySignaturePairs) > 1
+		path := defaultPath(isMultisig)
+		extendedKey, err := extendedKeyFromMnemonicAndPath(mnemonic, path, params)
+		if err != nil {
+			return err
+		}
+
+		derivedKey, err := extendedKey.DeriveFromPath(partiallySignedInput.DerivationPath)
+		if err != nil {
+			return err
+		}
+
+		derivedPublicKey, err := derivedKey.Public()
+		if err != nil {
+			return err
+		}
+
+		for _, pair := range partiallySignedInput.PubKeySignaturePairs {
+			if pair.ExtendedPublicKey == derivedPublicKey.String() {
+				pair.Signature, err = rawTxInSignature(derivedKey, partiallySignedTransaction.Tx, i, consensushashing.SigHashAll, sighashReusedValues, ecdsa)
+				if err != nil {
+					return err
+				}
+
+				signed = true
+			}
+		}
+	}
+
+	if !signed {
+		return errors.Errorf("Public key doesn't match any of the transaction public keys")
+	}
+
+	return nil
+}

cmd/kaspawallet/libkaspawallet/transaction.go

@@ -0,0 +1,256 @@
+package libkaspawallet
+
+import (
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/serialization"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/subnetworks"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
+	"github.com/kaspanet/kaspad/util"
+	"github.com/pkg/errors"
+)
+
+// Payment contains a recipient payment details
+type Payment struct {
+	Address util.Address
+	Amount  uint64
+}
+
+// UTXO is a type that stores a UTXO and meta data
+// that is needed in order to sign it and create
+// transactions with it.
+type UTXO struct {
+	Outpoint       *externalapi.DomainOutpoint
+	UTXOEntry      externalapi.UTXOEntry
+	DerivationPath string
+}
+
+// CreateUnsignedTransaction creates an unsigned transaction
+func CreateUnsignedTransaction(
+	extendedPublicKeys []string,
+	minimumSignatures uint32,
+	payments []*Payment,
+	selectedUTXOs []*UTXO) ([]byte, error) {
+
+	sortPublicKeys(extendedPublicKeys)
+	unsignedTransaction, err := createUnsignedTransaction(extendedPublicKeys, minimumSignatures, payments, selectedUTXOs)
+	if err != nil {
+		return nil, err
+	}
+
+	return serialization.SerializePartiallySignedTransaction(unsignedTransaction)
+}
+
+func multiSigRedeemScript(extendedPublicKeys []string, minimumSignatures uint32, path string, ecdsa bool) ([]byte, error) {
+	scriptBuilder := txscript.NewScriptBuilder()
+	scriptBuilder.AddInt64(int64(minimumSignatures))
+	for _, key := range extendedPublicKeys {
+		extendedKey, err := bip32.DeserializeExtendedKey(key)
+		if err != nil {
+			return nil, err
+		}
+
+		derivedKey, err := extendedKey.DeriveFromPath(path)
+		if err != nil {
+			return nil, err
+		}
+
+		publicKey, err := derivedKey.PublicKey()
+		if err != nil {
+			return nil, err
+		}
+
+		var serializedPublicKey []byte
+		if ecdsa {
+			serializedECDSAPublicKey, err := publicKey.Serialize()
+			if err != nil {
+				return nil, err
+			}
+			serializedPublicKey = serializedECDSAPublicKey[:]
+		} else {
+			schnorrPublicKey, err := publicKey.ToSchnorr()
+			if err != nil {
+				return nil, err
+			}
+
+			serializedSchnorrPublicKey, err := schnorrPublicKey.Serialize()
+			if err != nil {
+				return nil, err
+			}
+			serializedPublicKey = serializedSchnorrPublicKey[:]
+		}
+
+		scriptBuilder.AddData(serializedPublicKey)
+	}
+	scriptBuilder.AddInt64(int64(len(extendedPublicKeys)))
+
+	if ecdsa {
+		scriptBuilder.AddOp(txscript.OpCheckMultiSigECDSA)
+	} else {
+		scriptBuilder.AddOp(txscript.OpCheckMultiSig)
+	}
+
+	return scriptBuilder.Script()
+}
+
+func createUnsignedTransaction(
+	extendedPublicKeys []string,
+	minimumSignatures uint32,
+	payments []*Payment,
+	selectedUTXOs []*UTXO) (*serialization.PartiallySignedTransaction, error) {
+
+	inputs := make([]*externalapi.DomainTransactionInput, len(selectedUTXOs))
+	partiallySignedInputs := make([]*serialization.PartiallySignedInput, len(selectedUTXOs))
+	for i, utxo := range selectedUTXOs {
+		emptyPubKeySignaturePairs := make([]*serialization.PubKeySignaturePair, len(extendedPublicKeys))
+		for i, extendedPublicKey := range extendedPublicKeys {
+			extendedKey, err := bip32.DeserializeExtendedKey(extendedPublicKey)
+			if err != nil {
+				return nil, err
+			}
+
+			derivedKey, err := extendedKey.DeriveFromPath(utxo.DerivationPath)
+			if err != nil {
+				return nil, err
+			}
+
+			emptyPubKeySignaturePairs[i] = &serialization.PubKeySignaturePair{
+				ExtendedPublicKey: derivedKey.String(),
+			}
+		}
+
+		inputs[i] = &externalapi.DomainTransactionInput{PreviousOutpoint: *utxo.Outpoint}
+		partiallySignedInputs[i] = &serialization.PartiallySignedInput{
+			PrevOutput: &externalapi.DomainTransactionOutput{
+				Value:           utxo.UTXOEntry.Amount(),
+				ScriptPublicKey: utxo.UTXOEntry.ScriptPublicKey(),
+			},
+			MinimumSignatures:    minimumSignatures,
+			PubKeySignaturePairs: emptyPubKeySignaturePairs,
+			DerivationPath:       utxo.DerivationPath,
+		}
+	}
+
+	outputs := make([]*externalapi.DomainTransactionOutput, len(payments))
+	for i, payment := range payments {
+		scriptPublicKey, err := txscript.PayToAddrScript(payment.Address)
+		if err != nil {
+			return nil, err
+		}
+
+		outputs[i] = &externalapi.DomainTransactionOutput{
+			Value:           payment.Amount,
+			ScriptPublicKey: scriptPublicKey,
+		}
+	}
+
+	domainTransaction := &externalapi.DomainTransaction{
+		Version:      constants.MaxTransactionVersion,
+		Inputs:       inputs,
+		Outputs:      outputs,
+		LockTime:     0,
+		SubnetworkID: subnetworks.SubnetworkIDNative,
+		Gas:          0,
+		Payload:      nil,
+	}
+
+	return &serialization.PartiallySignedTransaction{
+		Tx:                    domainTransaction,
+		PartiallySignedInputs: partiallySignedInputs,
+	}, nil
+}
+
+// IsTransactionFullySigned returns whether the transaction is fully signed and ready to broadcast.
+func IsTransactionFullySigned(partiallySignedTransactionBytes []byte) (bool, error) {
+	partiallySignedTransaction, err := serialization.DeserializePartiallySignedTransaction(partiallySignedTransactionBytes)
+	if err != nil {
+		return false, err
+	}
+
+	return isTransactionFullySigned(partiallySignedTransaction), nil
+}
+
+func isTransactionFullySigned(partiallySignedTransaction *serialization.PartiallySignedTransaction) bool {
+	for _, input := range partiallySignedTransaction.PartiallySignedInputs {
+		numSignatures := 0
+		for _, pair := range input.PubKeySignaturePairs {
+			if pair.Signature != nil {
+				numSignatures++
+			}
+		}
+		if uint32(numSignatures) < input.MinimumSignatures {
+			return false
+		}
+	}
+	return true
+}
+
+// ExtractTransaction extracts a domain transaction from partially signed transaction after all of the
+// relevant parties have signed it.
+func ExtractTransaction(partiallySignedTransactionBytes []byte, ecdsa bool) (*externalapi.DomainTransaction, error) {
+	partiallySignedTransaction, err := serialization.DeserializePartiallySignedTransaction(partiallySignedTransactionBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	return extractTransaction(partiallySignedTransaction, ecdsa)
+}
+
+func extractTransaction(partiallySignedTransaction *serialization.PartiallySignedTransaction, ecdsa bool) (*externalapi.DomainTransaction, error) {
+	for i, input := range partiallySignedTransaction.PartiallySignedInputs {
+		isMultisig := len(input.PubKeySignaturePairs) > 1
+		scriptBuilder := txscript.NewScriptBuilder()
+		if isMultisig {
+			signatureCount := 0
+			for _, pair := range input.PubKeySignaturePairs {
+				if pair.Signature != nil {
+					scriptBuilder.AddData(pair.Signature)
+					signatureCount++
+				}
+			}
+			if uint32(signatureCount) < input.MinimumSignatures {
+				return nil, errors.Errorf("missing %d signatures", input.MinimumSignatures-uint32(signatureCount))
+			}
+
+			redeemScript, err := partiallySignedInputMultisigRedeemScript(input, ecdsa)
+			if err != nil {
+				return nil, err
+			}
+
+			scriptBuilder.AddData(redeemScript)
+			sigScript, err := scriptBuilder.Script()
+			if err != nil {
+				return nil, err
+			}
+
+			partiallySignedTransaction.Tx.Inputs[i].SignatureScript = sigScript
+		} else {
+			if len(input.PubKeySignaturePairs) > 1 {
+				return nil, errors.Errorf("Cannot sign on P2PK when len(input.PubKeySignaturePairs) > 1")
+			}
+
+			if input.PubKeySignaturePairs[0].Signature == nil {
+				return nil, errors.Errorf("missing signature")
+			}
+
+			sigScript, err := txscript.NewScriptBuilder().
+				AddData(input.PubKeySignaturePairs[0].Signature).
+				Script()
+			if err != nil {
+				return nil, err
+			}
+			partiallySignedTransaction.Tx.Inputs[i].SignatureScript = sigScript
+		}
+	}
+	return partiallySignedTransaction.Tx, nil
+}
+
+func partiallySignedInputMultisigRedeemScript(input *serialization.PartiallySignedInput, ecdsa bool) ([]byte, error) {
+	extendedPublicKeys := make([]string, len(input.PubKeySignaturePairs))
+	for i, pair := range input.PubKeySignaturePairs {
+		extendedPublicKeys[i] = pair.ExtendedPublicKey
+	}
+
+	return multiSigRedeemScript(extendedPublicKeys, input.MinimumSignatures, "m", ecdsa)
+}

cmd/kaspawallet/libkaspawallet/transaction_test.go

@@ -0,0 +1,311 @@
+package libkaspawallet_test
+
+import (
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/domain/consensus"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/utxo"
+	"github.com/kaspanet/kaspad/util"
+	"strings"
+	"testing"
+)
+
+func forSchnorrAndECDSA(t *testing.T, testFunc func(t *testing.T, ecdsa bool)) {
+	t.Run("schnorr", func(t *testing.T) {
+		testFunc(t, false)
+	})
+
+	t.Run("ecdsa", func(t *testing.T) {
+		testFunc(t, true)
+	})
+}
+
+func TestMultisig(t *testing.T) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
+		params := &consensusConfig.Params
+		forSchnorrAndECDSA(t, func(t *testing.T, ecdsa bool) {
+			consensusConfig.BlockCoinbaseMaturity = 0
+			tc, teardown, err := consensus.NewFactory().NewTestConsensus(consensusConfig, "TestMultisig")
+			if err != nil {
+				t.Fatalf("Error setting up tc: %+v", err)
+			}
+			defer teardown(false)
+
+			const numKeys = 3
+			mnemonics := make([]string, numKeys)
+			publicKeys := make([]string, numKeys)
+			for i := 0; i < numKeys; i++ {
+				var err error
+				mnemonics[i], err = libkaspawallet.CreateMnemonic()
+				if err != nil {
+					t.Fatalf("CreateMnemonic: %+v", err)
+				}
+
+				publicKeys[i], err = libkaspawallet.MasterPublicKeyFromMnemonic(&consensusConfig.Params, mnemonics[i], true)
+				if err != nil {
+					t.Fatalf("MasterPublicKeyFromMnemonic: %+v", err)
+				}
+			}
+
+			const minimumSignatures = 2
+			path := "m/1/2/3"
+			address, err := libkaspawallet.Address(params, publicKeys, minimumSignatures, path, ecdsa)
+			if err != nil {
+				t.Fatalf("Address: %+v", err)
+			}
+
+			if _, ok := address.(*util.AddressScriptHash); !ok {
+				t.Fatalf("The address is of unexpected type")
+			}
+
+			scriptPublicKey, err := txscript.PayToAddrScript(address)
+			if err != nil {
+				t.Fatalf("PayToAddrScript: %+v", err)
+			}
+
+			coinbaseData := &externalapi.DomainCoinbaseData{
+				ScriptPublicKey: scriptPublicKey,
+				ExtraData:       nil,
+			}
+
+			fundingBlockHash, _, err := tc.AddBlock([]*externalapi.DomainHash{consensusConfig.GenesisHash}, coinbaseData, nil)
+			if err != nil {
+				t.Fatalf("AddBlock: %+v", err)
+			}
+
+			block1Hash, _, err := tc.AddBlock([]*externalapi.DomainHash{fundingBlockHash}, nil, nil)
+			if err != nil {
+				t.Fatalf("AddBlock: %+v", err)
+			}
+
+			block1, err := tc.GetBlock(block1Hash)
+			if err != nil {
+				t.Fatalf("GetBlock: %+v", err)
+			}
+
+			block1Tx := block1.Transactions[0]
+			block1TxOut := block1Tx.Outputs[0]
+			selectedUTXOs := []*libkaspawallet.UTXO{
+				{
+					Outpoint: &externalapi.DomainOutpoint{
+						TransactionID: *consensushashing.TransactionID(block1.Transactions[0]),
+						Index:         0,
+					},
+					UTXOEntry:      utxo.NewUTXOEntry(block1TxOut.Value, block1TxOut.ScriptPublicKey, true, 0),
+					DerivationPath: path,
+				},
+			}
+
+			unsignedTransaction, err := libkaspawallet.CreateUnsignedTransaction(publicKeys, minimumSignatures,
+				[]*libkaspawallet.Payment{{
+					Address: address,
+					Amount:  10,
+				}}, selectedUTXOs)
+			if err != nil {
+				t.Fatalf("CreateUnsignedTransaction: %+v", err)
+			}
+
+			isFullySigned, err := libkaspawallet.IsTransactionFullySigned(unsignedTransaction)
+			if err != nil {
+				t.Fatalf("IsTransactionFullySigned: %+v", err)
+			}
+
+			if isFullySigned {
+				t.Fatalf("Transaction is not expected to be signed")
+			}
+
+			_, err = libkaspawallet.ExtractTransaction(unsignedTransaction, ecdsa)
+			if err == nil || !strings.Contains(err.Error(), fmt.Sprintf("missing %d signatures", minimumSignatures)) {
+				t.Fatal("Unexpectedly succeed to extract a valid transaction out of unsigned transaction")
+			}
+
+			signedTxStep1, err := libkaspawallet.Sign(params, mnemonics[:1], unsignedTransaction, ecdsa)
+			if err != nil {
+				t.Fatalf("Sign: %+v", err)
+			}
+
+			isFullySigned, err = libkaspawallet.IsTransactionFullySigned(signedTxStep1)
+			if err != nil {
+				t.Fatalf("IsTransactionFullySigned: %+v", err)
+			}
+
+			if isFullySigned {
+				t.Fatalf("Transaction is not expected to be fully signed")
+			}
+
+			signedTxStep2, err := libkaspawallet.Sign(params, mnemonics[1:2], signedTxStep1, ecdsa)
+			if err != nil {
+				t.Fatalf("Sign: %+v", err)
+			}
+
+			extractedSignedTxStep2, err := libkaspawallet.ExtractTransaction(signedTxStep2, ecdsa)
+			if err != nil {
+				t.Fatalf("ExtractTransaction: %+v", err)
+			}
+
+			signedTxOneStep, err := libkaspawallet.Sign(params, mnemonics[:2], unsignedTransaction, ecdsa)
+			if err != nil {
+				t.Fatalf("Sign: %+v", err)
+			}
+
+			extractedSignedTxOneStep, err := libkaspawallet.ExtractTransaction(signedTxOneStep, ecdsa)
+			if err != nil {
+				t.Fatalf("ExtractTransaction: %+v", err)
+			}
+
+			// We check IDs instead of comparing the actual transactions because the actual transactions have different
+			// signature scripts due to non deterministic signature scheme.
+			if !consensushashing.TransactionID(extractedSignedTxStep2).Equal(consensushashing.TransactionID(extractedSignedTxOneStep)) {
+				t.Fatalf("Expected extractedSignedTxOneStep and extractedSignedTxStep2 IDs to be equal")
+			}
+
+			_, insertionResult, err := tc.AddBlock([]*externalapi.DomainHash{block1Hash}, nil, []*externalapi.DomainTransaction{extractedSignedTxStep2})
+			if err != nil {
+				t.Fatalf("AddBlock: %+v", err)
+			}
+
+			addedUTXO := &externalapi.DomainOutpoint{
+				TransactionID: *consensushashing.TransactionID(extractedSignedTxStep2),
+				Index:         0,
+			}
+			if !insertionResult.VirtualUTXODiff.ToAdd().Contains(addedUTXO) {
+				t.Fatalf("Transaction wasn't accepted in the DAG")
+			}
+		})
+	})
+}
+
+func TestP2PK(t *testing.T) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
+		params := &consensusConfig.Params
+		forSchnorrAndECDSA(t, func(t *testing.T, ecdsa bool) {
+			consensusConfig.BlockCoinbaseMaturity = 0
+			tc, teardown, err := consensus.NewFactory().NewTestConsensus(consensusConfig, "TestMultisig")
+			if err != nil {
+				t.Fatalf("Error setting up tc: %+v", err)
+			}
+			defer teardown(false)
+
+			const numKeys = 1
+			mnemonics := make([]string, numKeys)
+			publicKeys := make([]string, numKeys)
+			for i := 0; i < numKeys; i++ {
+				var err error
+				mnemonics[i], err = libkaspawallet.CreateMnemonic()
+				if err != nil {
+					t.Fatalf("CreateMnemonic: %+v", err)
+				}
+
+				publicKeys[i], err = libkaspawallet.MasterPublicKeyFromMnemonic(&consensusConfig.Params, mnemonics[i], false)
+				if err != nil {
+					t.Fatalf("MasterPublicKeyFromMnemonic: %+v", err)
+				}
+			}
+
+			const minimumSignatures = 1
+			path := "m/1/2/3"
+			address, err := libkaspawallet.Address(params, publicKeys, minimumSignatures, path, ecdsa)
+			if err != nil {
+				t.Fatalf("Address: %+v", err)
+			}
+
+			if ecdsa {
+				if _, ok := address.(*util.AddressPublicKeyECDSA); !ok {
+					t.Fatalf("The address is of unexpected type")
+				}
+			} else {
+				if _, ok := address.(*util.AddressPublicKey); !ok {
+					t.Fatalf("The address is of unexpected type")
+				}
+			}
+
+			scriptPublicKey, err := txscript.PayToAddrScript(address)
+			if err != nil {
+				t.Fatalf("PayToAddrScript: %+v", err)
+			}
+
+			coinbaseData := &externalapi.DomainCoinbaseData{
+				ScriptPublicKey: scriptPublicKey,
+				ExtraData:       nil,
+			}
+
+			fundingBlockHash, _, err := tc.AddBlock([]*externalapi.DomainHash{consensusConfig.GenesisHash}, coinbaseData, nil)
+			if err != nil {
+				t.Fatalf("AddBlock: %+v", err)
+			}
+
+			block1Hash, _, err := tc.AddBlock([]*externalapi.DomainHash{fundingBlockHash}, nil, nil)
+			if err != nil {
+				t.Fatalf("AddBlock: %+v", err)
+			}
+
+			block1, err := tc.GetBlock(block1Hash)
+			if err != nil {
+				t.Fatalf("GetBlock: %+v", err)
+			}
+
+			block1Tx := block1.Transactions[0]
+			block1TxOut := block1Tx.Outputs[0]
+			selectedUTXOs := []*libkaspawallet.UTXO{
+				{
+					Outpoint: &externalapi.DomainOutpoint{
+						TransactionID: *consensushashing.TransactionID(block1.Transactions[0]),
+						Index:         0,
+					},
+					UTXOEntry:      utxo.NewUTXOEntry(block1TxOut.Value, block1TxOut.ScriptPublicKey, true, 0),
+					DerivationPath: path,
+				},
+			}
+
+			unsignedTransaction, err := libkaspawallet.CreateUnsignedTransaction(publicKeys, minimumSignatures,
+				[]*libkaspawallet.Payment{{
+					Address: address,
+					Amount:  10,
+				}}, selectedUTXOs)
+			if err != nil {
+				t.Fatalf("CreateUnsignedTransaction: %+v", err)
+			}
+
+			isFullySigned, err := libkaspawallet.IsTransactionFullySigned(unsignedTransaction)
+			if err != nil {
+				t.Fatalf("IsTransactionFullySigned: %+v", err)
+			}
+
+			if isFullySigned {
+				t.Fatalf("Transaction is not expected to be signed")
+			}
+
+			_, err = libkaspawallet.ExtractTransaction(unsignedTransaction, ecdsa)
+			if err == nil || !strings.Contains(err.Error(), "missing signature") {
+				t.Fatal("Unexpectedly succeed to extract a valid transaction out of unsigned transaction")
+			}
+
+			signedTx, err := libkaspawallet.Sign(params, mnemonics, unsignedTransaction, ecdsa)
+			if err != nil {
+				t.Fatalf("Sign: %+v", err)
+			}
+
+			tx, err := libkaspawallet.ExtractTransaction(signedTx, ecdsa)
+			if err != nil {
+				t.Fatalf("ExtractTransaction: %+v", err)
+			}
+
+			_, insertionResult, err := tc.AddBlock([]*externalapi.DomainHash{block1Hash}, nil, []*externalapi.DomainTransaction{tx})
+			if err != nil {
+				t.Fatalf("AddBlock: %+v", err)
+			}
+
+			addedUTXO := &externalapi.DomainOutpoint{
+				TransactionID: *consensushashing.TransactionID(tx),
+				Index:         0,
+			}
+			if !insertionResult.VirtualUTXODiff.ToAdd().Contains(addedUTXO) {
+				t.Fatalf("Transaction wasn't accepted in the DAG")
+			}
+		})
+	})
+}

cmd/kaspawallet/main.go

@@ -0,0 +1,35 @@
+package main
+
+import "github.com/pkg/errors"
+
+func main() {
+	subCmd, config := parseCommandLine()
+
+	var err error
+	switch subCmd {
+	case createSubCmd:
+		err = create(config.(*createConfig))
+	case balanceSubCmd:
+		err = balance(config.(*balanceConfig))
+	case sendSubCmd:
+		err = send(config.(*sendConfig))
+	case createUnsignedTransactionSubCmd:
+		err = createUnsignedTransaction(config.(*createUnsignedTransactionConfig))
+	case signSubCmd:
+		err = sign(config.(*signConfig))
+	case broadcastSubCmd:
+		err = broadcast(config.(*broadcastConfig))
+	case showAddressSubCmd:
+		err = showAddress(config.(*showAddressConfig))
+	case dumpUnencryptedDataSubCmd:
+		err = dumpUnencryptedData(config.(*dumpUnencryptedDataConfig))
+	case startDaemonSubCmd:
+		err = startDaemon(config.(*startDaemonConfig))
+	default:
+		err = errors.Errorf("Unknown sub-command '%s'\n", subCmd)
+	}
+
+	if err != nil {
+		printErrorAndExit(err)
+	}
+}

cmd/kaspawallet/send.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/keys"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+	"github.com/kaspanet/kaspad/util"
+	"github.com/pkg/errors"
+)
+
+func send(conf *sendConfig) error {
+	keysFile, err := keys.ReadKeysFile(conf.NetParams(), conf.KeysFile)
+	if err != nil {
+		return err
+	}
+
+	if len(keysFile.ExtendedPublicKeys) > len(keysFile.EncryptedMnemonics) {
+		return errors.Errorf("Cannot use 'send' command for multisig wallet without all of the keys")
+	}
+
+	daemonClient, tearDown, err := client.Connect(conf.DaemonAddress)
+	if err != nil {
+		return err
+	}
+	defer tearDown()
+
+	ctx, cancel := context.WithTimeout(context.Background(), daemonTimeout)
+	defer cancel()
+
+	sendAmountSompi := uint64(conf.SendAmount * util.SompiPerKaspa)
+	createUnsignedTransactionResponse, err := daemonClient.CreateUnsignedTransaction(ctx, &pb.CreateUnsignedTransactionRequest{
+		Address: conf.ToAddress,
+		Amount:  sendAmountSompi,
+	})
+	if err != nil {
+		return err
+	}
+
+	mnemonics, err := keysFile.DecryptMnemonics(conf.Password)
+	if err != nil {
+		return err
+	}
+
+	signedTransaction, err := libkaspawallet.Sign(conf.NetParams(), mnemonics, createUnsignedTransactionResponse.UnsignedTransaction, keysFile.ECDSA)
+	if err != nil {
+		return err
+	}
+
+	ctx2, cancel2 := context.WithTimeout(context.Background(), daemonTimeout)
+	defer cancel2()
+	broadcastResponse, err := daemonClient.Broadcast(ctx2, &pb.BroadcastRequest{
+		Transaction: signedTransaction,
+	})
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Transaction was sent successfully")
+	fmt.Printf("Transaction ID: \t%s\n", broadcastResponse.TxID)
+
+	return nil
+}

cmd/kaspawallet/show_address.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
+)
+
+func showAddress(conf *showAddressConfig) error {
+	daemonClient, tearDown, err := client.Connect(conf.DaemonAddress)
+	if err != nil {
+		return err
+	}
+	defer tearDown()
+
+	ctx, cancel := context.WithTimeout(context.Background(), daemonTimeout)
+	defer cancel()
+
+	response, err := daemonClient.GetReceiveAddress(ctx, &pb.GetReceiveAddressRequest{})
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Address:\n%s\n", response.Address)
+	return nil
+}

cmd/kaspawallet/sign.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"encoding/hex"
+	"fmt"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/keys"
+	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet"
+)
+
+func sign(conf *signConfig) error {
+	keysFile, err := keys.ReadKeysFile(conf.NetParams(), conf.KeysFile)
+	if err != nil {
+		return err
+	}
+
+	partiallySignedTransaction, err := hex.DecodeString(conf.Transaction)
+	if err != nil {
+		return err
+	}
+
+	privateKeys, err := keysFile.DecryptMnemonics(conf.Password)
+	if err != nil {
+		return err
+	}
+
+	updatedPartiallySignedTransaction, err := libkaspawallet.Sign(conf.NetParams(), privateKeys, partiallySignedTransaction, keysFile.ECDSA)
+	if err != nil {
+		return err
+	}
+
+	isFullySigned, err := libkaspawallet.IsTransactionFullySigned(updatedPartiallySignedTransaction)
+	if err != nil {
+		return err
+	}
+
+	if isFullySigned {
+		fmt.Println("The transaction is signed and ready to broadcast")
+	} else {
+		fmt.Println("Successfully signed transaction")
+	}
+
+	fmt.Printf("Transaction: %x\n", updatedPartiallySignedTransaction)
+	return nil
+}

cmd/kaspawallet/start_daemon.go

@@ -0,0 +1,7 @@
+package main
+
+import "github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/server"
+
+func startDaemon(conf *startDaemonConfig) error {
+	return server.Start(conf.NetParams(), conf.Listen, conf.RPCServer, conf.KeysFile)
+}

cmd/kaspawallet/utils/readline.go

@@ -0,0 +1,18 @@
+package utils
+
+import (
+	"bufio"
+	"strings"
+
+	"github.com/pkg/errors"
+)
+
+// ReadLine reads one line from the given reader with trimmed white space.
+func ReadLine(reader *bufio.Reader) (string, error) {
+	line, err := reader.ReadBytes('\n')
+	if err != nil {
+		return "", errors.WithStack(err)
+	}
+
+	return strings.TrimSpace(string(line)), nil
+}

cmd/wallet/README.md

@@ -1,48 +0,0 @@
-WALLET
-======
-
-## IMPORTANT:
-
-### This software is for TESTING ONLY. Do NOT use it for handling real money.
-
-`wallet` is a simple, no-frills wallet software operated via the command line.\
-It is capable of generating wallet key-pairs, printing a wallet's current balance, and sending simple transactions.
-
-## Requirements
-
-Go 1.16 or later.
-
-## Installation
-
-#### Build from Source
-
-- Install Go according to the installation instructions here:
-  http://golang.org/doc/install
-
-- Ensure Go was installed properly and is a supported version:
-
-```bash
-$ go version
-```
-
-- Run the following commands to obtain and install kaspad including all dependencies:
-
-```bash
-$ git clone https://github.com/kaspanet/kaspad
-$ cd kaspad/cmd/wallet
-$ go install .
-```
-
-- Wallet should now be installed in `$(go env GOPATH)/bin`. If you did
-  not already add the bin directory to your system path during Go installation,
-  you are encouraged to do so now.
-
-
-Usage
------
-
-* Create a new wallet key-pair: `wallet create --testnet`
-* Print a wallet's current balance:
-  `wallet balance --testnet --address=kaspatest:000000000000000000000000000000000000000000`
-* Send funds to another wallet:
-  `wallet send --testnet --private-key=0000000000000000000000000000000000000000000000000000000000000000 --send-amount=50 --to-address=kaspatest:000000000000000000000000000000000000000000`

cmd/wallet/balance.go

@@ -1,40 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/kaspanet/kaspad/infrastructure/network/rpcclient"
-
-	"github.com/kaspanet/kaspad/util"
-)
-
-func balance(conf *balanceConfig) error {
-	client, err := rpcclient.NewRPCClient(conf.RPCServer)
-	if err != nil {
-		return err
-	}
-	getUTXOsByAddressesResponse, err := client.GetUTXOsByAddresses([]string{conf.Address})
-	if err != nil {
-		return err
-	}
-	virtualSelectedParentBlueScoreResponse, err := client.GetVirtualSelectedParentBlueScore()
-	if err != nil {
-		return err
-	}
-	virtualSelectedParentBlueScore := virtualSelectedParentBlueScoreResponse.BlueScore
-
-	var availableBalance, pendingBalance uint64
-	for _, entry := range getUTXOsByAddressesResponse.Entries {
-		if isUTXOSpendable(entry, virtualSelectedParentBlueScore, conf.ActiveNetParams.BlockCoinbaseMaturity) {
-			availableBalance += entry.UTXOEntry.Amount
-		} else {
-			pendingBalance += entry.UTXOEntry.Amount
-		}
-	}
-
-	fmt.Printf("Balance:\t\tKAS %f\n", float64(availableBalance)/util.SompiPerKaspa)
-	if pendingBalance > 0 {
-		fmt.Printf("Pending balance:\tKAS %f\n", float64(pendingBalance)/util.SompiPerKaspa)
-	}
-
-	return nil
-}

cmd/wallet/common.go

@@ -1,21 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/kaspanet/kaspad/app/appmessage"
-	"os"
-)
-
-func isUTXOSpendable(entry *appmessage.UTXOsByAddressesEntry, virtualSelectedParentBlueScore uint64, coinbaseMaturity uint64) bool {
-	if !entry.UTXOEntry.IsCoinbase {
-		return true
-	}
-	blockBlueScore := entry.UTXOEntry.BlockDAAScore
-	// TODO: Check for a better alternative than virtualSelectedParentBlueScore
-	return blockBlueScore+coinbaseMaturity < virtualSelectedParentBlueScore
-}
-
-func printErrorAndExit(err error) {
-	fmt.Fprintf(os.Stderr, "%s\n", err)
-	os.Exit(1)
-}