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:
 
@@ -63,6 +63,9 @@ jobs:
         with:
           go-version: 1.16
 
+      - name: Delete the stability tests from coverage
+        run: rm -r stability-tests
+
       - name: Create coverage file
         run: go test -v -covermode=atomic -coverpkg=./... -coverprofile coverage.txt ./...
 

README.md

@@ -56,13 +56,15 @@ $ kaspad
 ```
 
 ## Discord
-Join our discord server using the following link: https://discord.gg/WmGhhzk
+Join our discord server using the following link: https://discord.gg/YNYnNN5Pf2
 
 ## Issue Tracker
 
 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
@@ -163,15 +157,9 @@ 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.DataDir, "db")
+	return filepath.Join(cfg.AppDir, "data")
 }
 
 func removeDatabase(cfg *config.Config) error {
@@ -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

@@ -3,6 +3,7 @@ package appmessage
 import (
 	"encoding/hex"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/blockheader"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/hashes"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/utxo"
 
 	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
@@ -83,7 +84,6 @@ func DomainTransactionToMsgTx(domainTransaction *externalapi.DomainTransaction)
 		LockTime:     domainTransaction.LockTime,
 		SubnetworkID: domainTransaction.SubnetworkID,
 		Gas:          domainTransaction.Gas,
-		PayloadHash:  domainTransaction.PayloadHash,
 		Payload:      domainTransaction.Payload,
 	}
 }
@@ -133,7 +133,6 @@ func MsgTxToDomainTransaction(msgTx *MsgTx) *externalapi.DomainTransaction {
 		LockTime:     msgTx.LockTime,
 		SubnetworkID: msgTx.SubnetworkID,
 		Gas:          msgTx.Gas,
-		PayloadHash:  msgTx.PayloadHash,
 		Payload:      payload,
 	}
 }
@@ -164,14 +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
@@ -198,10 +193,6 @@ func RPCTransactionToDomainTransaction(rpcTransaction *RPCTransaction) (*externa
 	if err != nil {
 		return nil, err
 	}
-	payloadHash, err := externalapi.NewDomainHashFromString(rpcTransaction.PayloadHash)
-	if err != nil {
-		return nil, err
-	}
 	payload, err := hex.DecodeString(rpcTransaction.Payload)
 	if err != nil {
 		return nil, err
@@ -214,11 +205,40 @@ func RPCTransactionToDomainTransaction(rpcTransaction *RPCTransaction) (*externa
 		LockTime:     rpcTransaction.LockTime,
 		SubnetworkID: *subnetworkID,
 		Gas:          rpcTransaction.LockTime,
-		PayloadHash:  *payloadHash,
 		Payload:      payload,
 	}, 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))
@@ -244,7 +264,6 @@ func DomainTransactionToRPCTransaction(transaction *externalapi.DomainTransactio
 		}
 	}
 	subnetworkID := transaction.SubnetworkID.String()
-	payloadHash := transaction.PayloadHash.String()
 	payload := hex.EncodeToString(transaction.Payload)
 	return &RPCTransaction{
 		Version:      transaction.Version,
@@ -253,7 +272,6 @@ func DomainTransactionToRPCTransaction(transaction *externalapi.DomainTransactio
 		LockTime:     transaction.LockTime,
 		SubnetworkID: subnetworkID,
 		Gas:          transaction.LockTime,
-		PayloadHash:  payloadHash,
 		Payload:      payload,
 	}
 }
@@ -265,22 +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.BlockBlueScore,
-			),
-		}
+		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(
@@ -297,9 +320,76 @@ func DomainOutpointAndUTXOEntryPairsToOutpointAndUTXOEntryPairs(
 				Amount:          outpointAndUTXOEntryPair.UTXOEntry.Amount(),
 				ScriptPublicKey: outpointAndUTXOEntryPair.UTXOEntry.ScriptPublicKey(),
 				IsCoinbase:      outpointAndUTXOEntryPair.UTXOEntry.IsCoinbase(),
-				BlockBlueScore:  outpointAndUTXOEntryPair.UTXOEntry.BlockBlueScore(),
+				BlockDAAScore:   outpointAndUTXOEntryPair.UTXOEntry.BlockDAAScore(),
 			},
 		}
 	}
 	return domainOutpointAndUTXOEntryPairs
 }
+
+// DomainBlockToRPCBlock converts DomainBlocks to RPCBlocks
+func DomainBlockToRPCBlock(block *externalapi.DomainBlock) *RPCBlock {
+	header := &RPCBlockHeader{
+		Version:              uint32(block.Header.Version()),
+		ParentHashes:         hashes.ToStrings(block.Header.ParentHashes()),
+		HashMerkleRoot:       block.Header.HashMerkleRoot().String(),
+		AcceptedIDMerkleRoot: block.Header.AcceptedIDMerkleRoot().String(),
+		UTXOCommitment:       block.Header.UTXOCommitment().String(),
+		Timestamp:            block.Header.TimeInMilliseconds(),
+		Bits:                 block.Header.Bits(),
+		Nonce:                block.Header.Nonce(),
+	}
+	transactions := make([]*RPCTransaction, len(block.Transactions))
+	for i, transaction := range block.Transactions {
+		transactions[i] = DomainTransactionToRPCTransaction(transaction)
+	}
+	return &RPCBlock{
+		Header:       header,
+		Transactions: transactions,
+	}
+}
+
+// RPCBlockToDomainBlock converts `block` into a DomainBlock
+func RPCBlockToDomainBlock(block *RPCBlock) (*externalapi.DomainBlock, error) {
+	parentHashes := make([]*externalapi.DomainHash, len(block.Header.ParentHashes))
+	for i, parentHash := range block.Header.ParentHashes {
+		domainParentHashes, err := externalapi.NewDomainHashFromString(parentHash)
+		if err != nil {
+			return nil, err
+		}
+		parentHashes[i] = domainParentHashes
+	}
+	hashMerkleRoot, err := externalapi.NewDomainHashFromString(block.Header.HashMerkleRoot)
+	if err != nil {
+		return nil, err
+	}
+	acceptedIDMerkleRoot, err := externalapi.NewDomainHashFromString(block.Header.AcceptedIDMerkleRoot)
+	if err != nil {
+		return nil, err
+	}
+	utxoCommitment, err := externalapi.NewDomainHashFromString(block.Header.UTXOCommitment)
+	if err != nil {
+		return nil, err
+	}
+	header := blockheader.NewImmutableBlockHeader(
+		uint16(block.Header.Version),
+		parentHashes,
+		hashMerkleRoot,
+		acceptedIDMerkleRoot,
+		utxoCommitment,
+		block.Header.Timestamp,
+		block.Header.Bits,
+		block.Header.Nonce)
+	transactions := make([]*externalapi.DomainTransaction, len(block.Transactions))
+	for i, transaction := range block.Transactions {
+		domainTransaction, err := RPCTransactionToDomainTransaction(transaction)
+		if err != nil {
+			return nil, err
+		}
+		transactions[i] = domainTransaction
+	}
+	return &externalapi.DomainBlock{
+		Header:       header,
+		Transactions: transactions,
+	}, nil
+}

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/p2p_msgblock.go

@@ -15,19 +15,6 @@ import (
 // backing array multiple times.
 const defaultTransactionAlloc = 2048
 
-// MaxMassAcceptedByBlock is the maximum total transaction mass a block may accept.
-const MaxMassAcceptedByBlock = 10000000
-
-// MaxMassPerTx is the maximum total mass a transaction may have.
-const MaxMassPerTx = MaxMassAcceptedByBlock / 2
-
-// MaxTxPerBlock is the maximum number of transactions that could
-// possibly fit into a block.
-const MaxTxPerBlock = (MaxMassAcceptedByBlock / minTxPayload) + 1
-
-// MaxBlockParents is the maximum allowed number of parents for block.
-const MaxBlockParents = 10
-
 // TxLoc holds locator data for the offset and length of where a transaction is
 // located within a MsgBlock data buffer.
 type TxLoc struct {

app/appmessage/p2p_msgpruningpointutxosetchunk.go

@@ -31,6 +31,6 @@ type OutpointAndUTXOEntryPair struct {
 type UTXOEntry struct {
 	Amount          uint64
 	ScriptPublicKey *externalapi.ScriptPublicKey
-	BlockBlueScore  uint64
+	BlockDAAScore   uint64
 	IsCoinbase      bool
 }

app/appmessage/p2p_msgtx.go

@@ -6,7 +6,6 @@ package appmessage
 
 import (
 	"encoding/binary"
-	"github.com/kaspanet/kaspad/domain/consensus/utils/hashes"
 	"strconv"
 
 	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
@@ -133,7 +132,6 @@ type MsgTx struct {
 	LockTime     uint64
 	SubnetworkID externalapi.DomainSubnetworkID
 	Gas          uint64
-	PayloadHash  externalapi.DomainHash
 	Payload      []byte
 }
 
@@ -179,7 +177,6 @@ func (msg *MsgTx) Copy() *MsgTx {
 		LockTime:     msg.LockTime,
 		SubnetworkID: msg.SubnetworkID,
 		Gas:          msg.Gas,
-		PayloadHash:  msg.PayloadHash,
 	}
 
 	if msg.Payload != nil {
@@ -280,18 +277,12 @@ func newMsgTx(version uint16, txIn []*TxIn, txOut []*TxOut, subnetworkID *extern
 		txOut = make([]*TxOut, 0, defaultTxInOutAlloc)
 	}
 
-	var payloadHash externalapi.DomainHash
-	if *subnetworkID != subnetworks.SubnetworkIDNative {
-		payloadHash = *hashes.PayloadHash(payload)
-	}
-
 	return &MsgTx{
 		Version:      version,
 		TxIn:         txIn,
 		TxOut:        txOut,
 		SubnetworkID: *subnetworkID,
 		Gas:          gas,
-		PayloadHash:  payloadHash,
 		Payload:      payload,
 		LockTime:     lockTime,
 	}

app/appmessage/p2p_msgtx_test.go

@@ -133,8 +133,8 @@ func TestTx(t *testing.T) {
 
 // TestTxHash tests the ability to generate the hash of a transaction accurately.
 func TestTxHashAndID(t *testing.T) {
-	txHash1Str := "4bee9ee495bd93a755de428376bd582a2bb6ec37c041753b711c0606d5745c13"
-	txID1Str := "f868bd20e816256b80eac976821be4589d24d21141bd1cec6e8005d0c16c6881"
+	txHash1Str := "93663e597f6c968d32d229002f76408edf30d6a0151ff679fc729812d8cb2acc"
+	txID1Str := "24079c6d2bdf602fc389cc307349054937744a9c8dc0f07c023e6af0e949a4e7"
 	wantTxID1, err := transactionid.FromString(txID1Str)
 	if err != nil {
 		t.Fatalf("NewTxIDFromStr: %v", err)
@@ -185,14 +185,14 @@ func TestTxHashAndID(t *testing.T) {
 			spew.Sprint(tx1ID), spew.Sprint(wantTxID1))
 	}
 
-	hash2Str := "cb1bdb4a83d4885535fb3cceb5c96597b7df903db83f0ffcd779d703affd8efd"
+	hash2Str := "8dafd1bec24527d8e3b443ceb0a3b92fffc0d60026317f890b2faf5e9afc177a"
 	wantHash2, err := externalapi.NewDomainHashFromString(hash2Str)
 	if err != nil {
 		t.Errorf("NewTxIDFromStr: %v", err)
 		return
 	}
 
-	id2Str := "ca080073d4ddf5b84443a0964af633f3c70a5b290fd3bc35a7e6f93fd33f9330"
+	id2Str := "89ffb49474637502d9059af38b8a95fc2f0d3baef5c801d7a9b9c8830671b711"
 	wantID2, err := transactionid.FromString(id2Str)
 	if err != nil {
 		t.Errorf("NewTxIDFromStr: %v", err)

app/appmessage/p2p_msgversion_test.go

@@ -19,7 +19,7 @@ func TestVersion(t *testing.T) {
 
 	// Create version message data.
 	tcpAddrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 16111}
-	me := NewNetAddress(tcpAddrMe, SFNodeNetwork)
+	me := NewNetAddress(tcpAddrMe)
 	generatedID, err := id.GenerateID()
 	if err != nil {
 		t.Fatalf("id.GenerateID: %s", err)

app/appmessage/p2p_netaddress.go

@@ -15,9 +15,6 @@ type NetAddress struct {
 	// Last time the address was seen.
 	Timestamp mstime.Time
 
-	// Bitfield which identifies the services supported by the address.
-	Services ServiceFlag
-
 	// IP address of the peer.
 	IP net.IP
 
@@ -26,17 +23,6 @@ type NetAddress struct {
 	Port uint16
 }
 
-// HasService returns whether the specified service is supported by the address.
-func (na *NetAddress) HasService(service ServiceFlag) bool {
-	return na.Services&service == service
-}
-
-// AddService adds service as a supported service by the peer generating the
-// message.
-func (na *NetAddress) AddService(service ServiceFlag) {
-	na.Services |= service
-}
-
 // TCPAddress converts the NetAddress to *net.TCPAddr
 func (na *NetAddress) TCPAddress() *net.TCPAddr {
 	return &net.TCPAddr{
@@ -47,20 +33,19 @@ func (na *NetAddress) TCPAddress() *net.TCPAddr {
 
 // NewNetAddressIPPort returns a new NetAddress using the provided IP, port, and
 // supported services with defaults for the remaining fields.
-func NewNetAddressIPPort(ip net.IP, port uint16, services ServiceFlag) *NetAddress {
-	return NewNetAddressTimestamp(mstime.Now(), services, ip, port)
+func NewNetAddressIPPort(ip net.IP, port uint16) *NetAddress {
+	return NewNetAddressTimestamp(mstime.Now(), ip, port)
 }
 
 // NewNetAddressTimestamp returns a new NetAddress using the provided
 // timestamp, IP, port, and supported services. The timestamp is rounded to
 // single millisecond precision.
 func NewNetAddressTimestamp(
-	timestamp mstime.Time, services ServiceFlag, ip net.IP, port uint16) *NetAddress {
+	timestamp mstime.Time, ip net.IP, port uint16) *NetAddress {
 	// Limit the timestamp to one millisecond precision since the protocol
 	// doesn't support better.
 	na := NetAddress{
 		Timestamp: timestamp,
-		Services:  services,
 		IP:        ip,
 		Port:      port,
 	}
@@ -69,6 +54,6 @@ func NewNetAddressTimestamp(
 
 // NewNetAddress returns a new NetAddress using the provided TCP address and
 // supported services with defaults for the remaining fields.
-func NewNetAddress(addr *net.TCPAddr, services ServiceFlag) *NetAddress {
-	return NewNetAddressIPPort(addr.IP, uint16(addr.Port), services)
+func NewNetAddress(addr *net.TCPAddr) *NetAddress {
+	return NewNetAddressIPPort(addr.IP, uint16(addr.Port))
 }

app/appmessage/p2p_netaddress_test.go

@@ -15,7 +15,7 @@ func TestNetAddress(t *testing.T) {
 	port := 16111
 
 	// Test NewNetAddress.
-	na := NewNetAddress(&net.TCPAddr{IP: ip, Port: port}, 0)
+	na := NewNetAddress(&net.TCPAddr{IP: ip, Port: port})
 
 	// Ensure we get the same ip, port, and services back out.
 	if !na.IP.Equal(ip) {
@@ -25,21 +25,4 @@ func TestNetAddress(t *testing.T) {
 		t.Errorf("NetNetAddress: wrong port - got %v, want %v", na.Port,
 			port)
 	}
-	if na.Services != 0 {
-		t.Errorf("NetNetAddress: wrong services - got %v, want %v",
-			na.Services, 0)
-	}
-	if na.HasService(SFNodeNetwork) {
-		t.Errorf("HasService: SFNodeNetwork service is set")
-	}
-
-	// Ensure adding the full service node flag works.
-	na.AddService(SFNodeNetwork)
-	if na.Services != SFNodeNetwork {
-		t.Errorf("AddService: wrong services - got %v, want %v",
-			na.Services, SFNodeNetwork)
-	}
-	if !na.HasService(SFNodeNetwork) {
-		t.Errorf("HasService: SFNodeNetwork service not set")
-	}
 }

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,
 	}
 }
 
@@ -25,7 +25,7 @@ func NewGetBlockRequestMessage(hash string, includeTransactionVerboseData bool)
 // its respective RPC message
 type GetBlockResponseMessage struct {
 	baseMessage
-	BlockVerboseData *BlockVerboseData
+	Block *RPCBlock
 
 	Error *RPCError
 }
@@ -39,71 +39,3 @@ func (msg *GetBlockResponseMessage) Command() MessageCommand {
 func NewGetBlockResponseMessage() *GetBlockResponseMessage {
 	return &GetBlockResponseMessage{}
 }
-
-// BlockVerboseData holds verbose data about a block
-type BlockVerboseData struct {
-	Hash                   string
-	Version                uint16
-	VersionHex             string
-	HashMerkleRoot         string
-	AcceptedIDMerkleRoot   string
-	UTXOCommitment         string
-	TxIDs                  []string
-	TransactionVerboseData []*TransactionVerboseData
-	Time                   int64
-	Nonce                  uint64
-	Bits                   string
-	Difficulty             float64
-	ParentHashes           []string
-	ChildrenHashes         []string
-	SelectedParentHash     string
-	BlueScore              uint64
-	IsHeaderOnly           bool
-}
-
-// TransactionVerboseData holds verbose data about a transaction
-type TransactionVerboseData struct {
-	TxID                      string
-	Hash                      string
-	Size                      uint64
-	Version                   uint16
-	LockTime                  uint64
-	SubnetworkID              string
-	Gas                       uint64
-	PayloadHash               string
-	Payload                   string
-	TransactionVerboseInputs  []*TransactionVerboseInput
-	TransactionVerboseOutputs []*TransactionVerboseOutput
-	BlockHash                 string
-	Time                      uint64
-	BlockTime                 uint64
-}
-
-// TransactionVerboseInput holds data about a transaction input
-type TransactionVerboseInput struct {
-	TxID        string
-	OutputIndex uint32
-	ScriptSig   *ScriptSig
-	Sequence    uint64
-}
-
-// ScriptSig holds data about a script signature
-type ScriptSig struct {
-	Asm string
-	Hex string
-}
-
-// TransactionVerboseOutput holds data about a transaction output
-type TransactionVerboseOutput struct {
-	Value        uint64
-	Index        uint32
-	ScriptPubKey *ScriptPubKeyResult
-}
-
-// ScriptPubKeyResult holds data about a script public key
-type ScriptPubKeyResult struct {
-	Hex     string
-	Type    string
-	Address string
-	Version uint16
-}

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_block_template.go

@@ -23,7 +23,7 @@ func NewGetBlockTemplateRequestMessage(payAddress string) *GetBlockTemplateReque
 // its respective RPC message
 type GetBlockTemplateResponseMessage struct {
 	baseMessage
-	MsgBlock *MsgBlock
+	Block    *RPCBlock
 	IsSynced bool
 
 	Error *RPCError
@@ -35,9 +35,9 @@ func (msg *GetBlockTemplateResponseMessage) Command() MessageCommand {
 }
 
 // NewGetBlockTemplateResponseMessage returns a instance of the message
-func NewGetBlockTemplateResponseMessage(msgBlock *MsgBlock, isSynced bool) *GetBlockTemplateResponseMessage {
+func NewGetBlockTemplateResponseMessage(block *RPCBlock, isSynced bool) *GetBlockTemplateResponseMessage {
 	return &GetBlockTemplateResponseMessage{
-		MsgBlock: msgBlock,
+		Block:    block,
 		IsSynced: isSynced,
 	}
 }

app/appmessage/rpc_get_blocks.go

@@ -4,9 +4,9 @@ package appmessage
 // its respective RPC message
 type GetBlocksRequestMessage struct {
 	baseMessage
-	LowHash                       string
-	IncludeBlockVerboseData       bool
-	IncludeTransactionVerboseData bool
+	LowHash             string
+	IncludeBlocks       bool
+	IncludeTransactions bool
 }
 
 // Command returns the protocol command string for the message
@@ -15,12 +15,12 @@ func (msg *GetBlocksRequestMessage) Command() MessageCommand {
 }
 
 // NewGetBlocksRequestMessage returns a instance of the message
-func NewGetBlocksRequestMessage(lowHash string, includeBlockVerboseData bool,
-	includeTransactionVerboseData bool) *GetBlocksRequestMessage {
+func NewGetBlocksRequestMessage(lowHash string, includeBlocks bool,
+	includeTransactions bool) *GetBlocksRequestMessage {
 	return &GetBlocksRequestMessage{
-		LowHash:                       lowHash,
-		IncludeBlockVerboseData:       includeBlockVerboseData,
-		IncludeTransactionVerboseData: includeTransactionVerboseData,
+		LowHash:             lowHash,
+		IncludeBlocks:       includeBlocks,
+		IncludeTransactions: includeTransactions,
 	}
 }
 
@@ -28,8 +28,8 @@ func NewGetBlocksRequestMessage(lowHash string, includeBlockVerboseData bool,
 // its respective RPC message
 type GetBlocksResponseMessage struct {
 	baseMessage
-	BlockHashes      []string
-	BlockVerboseData []*BlockVerboseData
+	BlockHashes []string
+	Blocks      []*RPCBlock
 
 	Error *RPCError
 }
@@ -40,11 +40,6 @@ func (msg *GetBlocksResponseMessage) Command() MessageCommand {
 }
 
 // NewGetBlocksResponseMessage returns a instance of the message
-func NewGetBlocksResponseMessage(blockHashes []string, blockHexes []string,
-	blockVerboseData []*BlockVerboseData) *GetBlocksResponseMessage {
-
-	return &GetBlocksResponseMessage{
-		BlockHashes:      blockHashes,
-		BlockVerboseData: blockVerboseData,
-	}
+func NewGetBlocksResponseMessage() *GetBlocksResponseMessage {
+	return &GetBlocksResponseMessage{}
 }

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{}
 }
 
@@ -20,7 +20,8 @@ func NewGeInfoRequestMessage() *GetInfoRequestMessage {
 // its respective RPC message
 type GetInfoResponseMessage struct {
 	baseMessage
-	P2PID string
+	P2PID       string
+	MempoolSize uint64
 
 	Error *RPCError
 }
@@ -31,8 +32,9 @@ func (msg *GetInfoResponseMessage) Command() MessageCommand {
 }
 
 // NewGetInfoResponseMessage returns a instance of the message
-func NewGetInfoResponseMessage(p2pID string) *GetInfoResponseMessage {
+func NewGetInfoResponseMessage(p2pID string, mempoolSize uint64) *GetInfoResponseMessage {
 	return &GetInfoResponseMessage{
-		P2PID: p2pID,
+		P2PID:       p2pID,
+		MempoolSize: mempoolSize,
 	}
 }

app/appmessage/rpc_get_mempool_entry.go

@@ -28,8 +28,8 @@ type GetMempoolEntryResponseMessage struct {
 
 // MempoolEntry represents a transaction in the mempool.
 type MempoolEntry struct {
-	Fee                    uint64
-	TransactionVerboseData *TransactionVerboseData
+	Fee         uint64
+	Transaction *RPCTransaction
 }
 
 // Command returns the protocol command string for the message
@@ -38,11 +38,11 @@ func (msg *GetMempoolEntryResponseMessage) Command() MessageCommand {
 }
 
 // NewGetMempoolEntryResponseMessage returns a instance of the message
-func NewGetMempoolEntryResponseMessage(fee uint64, transactionVerboseData *TransactionVerboseData) *GetMempoolEntryResponseMessage {
+func NewGetMempoolEntryResponseMessage(fee uint64, transaction *RPCTransaction) *GetMempoolEntryResponseMessage {
 	return &GetMempoolEntryResponseMessage{
 		Entry: &MempoolEntry{
-			Fee:                    fee,
-			TransactionVerboseData: transactionVerboseData,
+			Fee:         fee,
+			Transaction: transaction,
 		},
 	}
 }

app/appmessage/rpc_notify_block_added.go

@@ -37,8 +37,7 @@ func NewNotifyBlockAddedResponseMessage() *NotifyBlockAddedResponseMessage {
 // its respective RPC message
 type BlockAddedNotificationMessage struct {
 	baseMessage
-	Block            *MsgBlock
-	BlockVerboseData *BlockVerboseData
+	Block *RPCBlock
 }
 
 // Command returns the protocol command string for the message
@@ -47,9 +46,8 @@ func (msg *BlockAddedNotificationMessage) Command() MessageCommand {
 }
 
 // NewBlockAddedNotificationMessage returns a instance of the message
-func NewBlockAddedNotificationMessage(block *MsgBlock, blockVerboseData *BlockVerboseData) *BlockAddedNotificationMessage {
+func NewBlockAddedNotificationMessage(block *RPCBlock) *BlockAddedNotificationMessage {
 	return &BlockAddedNotificationMessage{
-		Block:            block,
-		BlockVerboseData: blockVerboseData,
+		Block: block,
 	}
 }

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/appmessage/rpc_submit_block.go

@@ -4,7 +4,7 @@ package appmessage
 // its respective RPC message
 type SubmitBlockRequestMessage struct {
 	baseMessage
-	Block *MsgBlock
+	Block *RPCBlock
 }
 
 // Command returns the protocol command string for the message
@@ -13,7 +13,7 @@ func (msg *SubmitBlockRequestMessage) Command() MessageCommand {
 }
 
 // NewSubmitBlockRequestMessage returns a instance of the message
-func NewSubmitBlockRequestMessage(block *MsgBlock) *SubmitBlockRequestMessage {
+func NewSubmitBlockRequestMessage(block *RPCBlock) *SubmitBlockRequestMessage {
 	return &SubmitBlockRequestMessage{
 		Block: block,
 	}
@@ -57,3 +57,35 @@ func (msg *SubmitBlockResponseMessage) Command() MessageCommand {
 func NewSubmitBlockResponseMessage() *SubmitBlockResponseMessage {
 	return &SubmitBlockResponseMessage{}
 }
+
+// RPCBlock is a kaspad block representation meant to be
+// used over RPC
+type RPCBlock struct {
+	Header       *RPCBlockHeader
+	Transactions []*RPCTransaction
+	VerboseData  *RPCBlockVerboseData
+}
+
+// RPCBlockHeader is a kaspad block header representation meant to be
+// used over RPC
+type RPCBlockHeader struct {
+	Version              uint32
+	ParentHashes         []string
+	HashMerkleRoot       string
+	AcceptedIDMerkleRoot string
+	UTXOCommitment       string
+	Timestamp            int64
+	Bits                 uint32
+	Nonce                uint64
+}
+
+// RPCBlockVerboseData holds verbose data about a block
+type RPCBlockVerboseData struct {
+	Hash               string
+	Difficulty         float64
+	SelectedParentHash string
+	TransactionIDs     []string
+	IsHeaderOnly       bool
+	BlueScore          uint64
+	ChildrenHashes     []string
+}

app/appmessage/rpc_submit_transaction.go

@@ -49,8 +49,8 @@ type RPCTransaction struct {
 	LockTime     uint64
 	SubnetworkID string
 	Gas          uint64
-	PayloadHash  string
 	Payload      string
+	VerboseData  *RPCTransactionVerboseData
 }
 
 // RPCTransactionInput is a kaspad transaction input representation
@@ -59,6 +59,7 @@ type RPCTransactionInput struct {
 	PreviousOutpoint *RPCOutpoint
 	SignatureScript  string
 	Sequence         uint64
+	VerboseData      *RPCTransactionInputVerboseData
 }
 
 // RPCScriptPublicKey is a kaspad ScriptPublicKey representation
@@ -72,6 +73,7 @@ type RPCScriptPublicKey struct {
 type RPCTransactionOutput struct {
 	Amount          uint64
 	ScriptPublicKey *RPCScriptPublicKey
+	VerboseData     *RPCTransactionOutputVerboseData
 }
 
 // RPCOutpoint is a kaspad outpoint representation meant to be used
@@ -86,6 +88,25 @@ type RPCOutpoint struct {
 type RPCUTXOEntry struct {
 	Amount          uint64
 	ScriptPublicKey *RPCScriptPublicKey
-	BlockBlueScore  uint64
+	BlockDAAScore   uint64
 	IsCoinbase      bool
 }
+
+// RPCTransactionVerboseData holds verbose data about a transaction
+type RPCTransactionVerboseData struct {
+	TransactionID string
+	Hash          string
+	Size          uint64
+	BlockHash     string
+	BlockTime     uint64
+}
+
+// RPCTransactionInputVerboseData holds data about a transaction input
+type RPCTransactionInputVerboseData struct {
+}
+
+// RPCTransactionOutputVerboseData holds data about a transaction output
+type RPCTransactionOutputVerboseData struct {
+	ScriptPublicKeyType    string
+	ScriptPublicKeyAddress string
+}

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()
 }
 
@@ -72,6 +64,8 @@ func (a *ComponentManager) Stop() {
 		log.Errorf("Error stopping the net adapter: %+v", err)
 	}
 
+	a.protocolManager.Close()
+
 	return
 }
 
@@ -80,7 +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
 	}
@@ -153,23 +153,6 @@ func setupRPC(
 	return rpcManager
 }
 
-func (a *ComponentManager) maybeSeedFromDNS() {
-	if !a.cfg.DisableDNSSeed {
-		dnsseed.SeedFromDNS(a.cfg.NetParams(), a.cfg.DNSSeed, appmessage.SFNodeNetwork, 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, appmessage.SFNodeNetwork, 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/flow_context.go

@@ -61,6 +61,8 @@ type FlowContext struct {
 
 	orphans      map[externalapi.DomainHash]*externalapi.DomainBlock
 	orphansMutex sync.RWMutex
+
+	shutdownChan chan struct{}
 }
 
 // New returns a new instance of FlowContext.
@@ -79,9 +81,21 @@ func New(cfg *config.Config, domain domain.Domain, addressManager *addressmanage
 		transactionsToRebroadcast:   make(map[externalapi.DomainTransactionID]*externalapi.DomainTransaction),
 		orphans:                     make(map[externalapi.DomainHash]*externalapi.DomainBlock),
 		timeStarted:                 mstime.Now().UnixMilliseconds(),
+		shutdownChan:                make(chan struct{}),
 	}
 }
 
+// Close signals to all flows the the protocol manager is closed.
+func (f *FlowContext) Close() {
+	close(f.shutdownChan)
+}
+
+// ShutdownChan is a chan where flows can subscribe to shutdown
+// event.
+func (f *FlowContext) ShutdownChan() <-chan struct{} {
+	return f.shutdownChan
+}
+
 // SetOnBlockAddedToDAGHandler sets the onBlockAddedToDAG handler
 func (f *FlowContext) SetOnBlockAddedToDAGHandler(onBlockAddedToDAGHandler OnBlockAddedToDAGHandler) {
 	f.onBlockAddedToDAGHandler = onBlockAddedToDAGHandler

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/blockrelay/handle_request_headers.go

@@ -50,7 +50,7 @@ func (flow *handleRequestHeadersFlow) start() error {
 			// GetHashesBetween is a relatively heavy operation so we limit it
 			// in order to avoid locking the consensus for too long
 			const maxBlueScoreDifference = 1 << 10
-			blockHashes, err := flow.Domain().Consensus().GetHashesBetween(lowHash, highHash, maxBlueScoreDifference)
+			blockHashes, _, err := flow.Domain().Consensus().GetHashesBetween(lowHash, highHash, maxBlueScoreDifference)
 			if err != nil {
 				return err
 			}

app/protocol/flows/ping/send.go

@@ -13,6 +13,7 @@ import (
 
 // SendPingsContext is the interface for the context needed for the SendPings flow.
 type SendPingsContext interface {
+	ShutdownChan() <-chan struct{}
 }
 
 type sendPingsFlow struct {
@@ -39,7 +40,13 @@ func (flow *sendPingsFlow) start() error {
 	ticker := time.NewTicker(pingInterval)
 	defer ticker.Stop()
 
-	for range ticker.C {
+	for {
+		select {
+		case <-flow.ShutdownChan():
+			return nil
+		case <-ticker.C:
+		}
+
 		nonce, err := random.Uint64()
 		if err != nil {
 			return err
@@ -62,5 +69,4 @@ func (flow *sendPingsFlow) start() error {
 		}
 		flow.peer.SetPingIdle()
 	}
-	return nil
 }

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"
@@ -129,7 +130,15 @@ type fakeRelayInvsContext struct {
 	rwLock                                        sync.RWMutex
 }
 
-func (f *fakeRelayInvsContext) GetBlockChildren(blockHash *externalapi.DomainHash) ([]*externalapi.DomainHash, error) {
+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))
 }
 
@@ -181,7 +190,7 @@ func (f *fakeRelayInvsContext) GetBlockAcceptanceData(blockHash *externalapi.Dom
 	panic(errors.Errorf("called unimplemented function from test '%s'", f.testName))
 }
 
-func (f *fakeRelayInvsContext) GetHashesBetween(lowHash, highHash *externalapi.DomainHash, maxBlueScoreDifference uint64) ([]*externalapi.DomainHash, error) {
+func (f *fakeRelayInvsContext) GetHashesBetween(lowHash, highHash *externalapi.DomainHash, maxBlueScoreDifference uint64) (hashes []*externalapi.DomainHash, actualHighHash *externalapi.DomainHash, err 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/manager.go

@@ -2,6 +2,9 @@ package protocol
 
 import (
 	"fmt"
+	"github.com/pkg/errors"
+	"sync"
+	"sync/atomic"
 
 	"github.com/kaspanet/kaspad/domain"
 
@@ -17,7 +20,9 @@ import (
 
 // Manager manages the p2p protocol
 type Manager struct {
-	context *flowcontext.FlowContext
+	context          *flowcontext.FlowContext
+	routersWaitGroup sync.WaitGroup
+	isClosed         uint32
 }
 
 // NewManager creates a new instance of the p2p protocol manager
@@ -32,6 +37,18 @@ func NewManager(cfg *config.Config, domain domain.Domain, netAdapter *netadapter
 	return &manager, nil
 }
 
+// Close closes the protocol manager and waits until all p2p flows
+// finish.
+func (m *Manager) Close() {
+	if !atomic.CompareAndSwapUint32(&m.isClosed, 0, 1) {
+		panic(errors.New("The protocol manager was already closed"))
+	}
+
+	atomic.StoreUint32(&m.isClosed, 1)
+	m.context.Close()
+	m.routersWaitGroup.Wait()
+}
+
 // Peers returns the currently active peers
 func (m *Manager) Peers() []*peerpkg.Peer {
 	return m.context.Peers()
@@ -53,11 +70,13 @@ func (m *Manager) AddBlock(block *externalapi.DomainBlock) error {
 	return m.context.AddBlock(block)
 }
 
-func (m *Manager) runFlows(flows []*flow, peer *peerpkg.Peer, errChan <-chan error) error {
+func (m *Manager) runFlows(flows []*flow, peer *peerpkg.Peer, errChan <-chan error, flowsWaitGroup *sync.WaitGroup) error {
+	flowsWaitGroup.Add(len(flows))
 	for _, flow := range flows {
 		executeFunc := flow.executeFunc // extract to new variable so that it's not overwritten
 		spawn(fmt.Sprintf("flow-%s", flow.name), func() {
 			executeFunc(peer)
+			flowsWaitGroup.Done()
 		})
 	}
 

app/protocol/protocol.go

@@ -1,20 +1,20 @@
 package protocol
 
 import (
+	"sync"
 	"sync/atomic"
 
-	"github.com/kaspanet/kaspad/app/protocol/flows/rejects"
-	"github.com/kaspanet/kaspad/infrastructure/network/connmanager"
-
 	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/app/protocol/flows/addressexchange"
 	"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"
@@ -41,6 +41,13 @@ func (m *Manager) routerInitializer(router *routerpkg.Router, netConnection *net
 	// After flows were registered - spawn a new thread that will wait for connection to finish initializing
 	// and start receiving messages
 	spawn("routerInitializer-runFlows", func() {
+		m.routersWaitGroup.Add(1)
+		defer m.routersWaitGroup.Done()
+
+		if atomic.LoadUint32(&m.isClosed) == 1 {
+			panic(errors.Errorf("tried to initialize router when the protocol manager is closed"))
+		}
+
 		isBanned, err := m.context.ConnectionManager().IsBanned(netConnection)
 		if err != nil && !errors.Is(err, addressmanager.ErrAddressNotFound) {
 			panic(err)
@@ -79,11 +86,17 @@ func (m *Manager) routerInitializer(router *routerpkg.Router, netConnection *net
 
 		removeHandshakeRoutes(router)
 
-		err = m.runFlows(flows, peer, errChan)
+		flowsWaitGroup := &sync.WaitGroup{}
+		err = m.runFlows(flows, peer, errChan, flowsWaitGroup)
 		if err != nil {
 			m.handleError(err, netConnection, router.OutgoingRoute())
+			// We call `flowsWaitGroup.Wait()` in two places instead of deferring, because
+			// we already defer `m.routersWaitGroup.Done()`, so we try to avoid error prone
+			// and confusing use of multiple dependent defers.
+			flowsWaitGroup.Wait()
 			return
 		}
+		flowsWaitGroup.Wait()
 	})
 }
 
@@ -93,7 +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)
 			}
 
@@ -238,7 +251,7 @@ func (m *Manager) registerTransactionRelayFlow(router *routerpkg.Router, isStopp
 	outgoingRoute := router.OutgoingRoute()
 
 	return []*flow{
-		m.registerFlow("HandleRelayedTransactions", router,
+		m.registerFlowWithCapacity("HandleRelayedTransactions", 10_000, router,
 			[]appmessage.MessageCommand{appmessage.CmdInvTransaction, appmessage.CmdTx, appmessage.CmdTransactionNotFound}, isStopping, errChan,
 			func(incomingRoute *routerpkg.Route, peer *peerpkg.Peer) error {
 				return transactionrelay.HandleRelayedTransactions(m.context, incomingRoute, outgoingRoute)
@@ -274,6 +287,24 @@ func (m *Manager) registerFlow(name string, router *routerpkg.Router, messageTyp
 		panic(err)
 	}
 
+	return m.registerFlowForRoute(route, name, isStopping, errChan, initializeFunc)
+}
+
+func (m *Manager) registerFlowWithCapacity(name string, capacity int, router *routerpkg.Router,
+	messageTypes []appmessage.MessageCommand, isStopping *uint32,
+	errChan chan error, initializeFunc flowInitializeFunc) *flow {
+
+	route, err := router.AddIncomingRouteWithCapacity(capacity, messageTypes)
+	if err != nil {
+		panic(err)
+	}
+
+	return m.registerFlowForRoute(route, name, isStopping, errChan, initializeFunc)
+}
+
+func (m *Manager) registerFlowForRoute(route *routerpkg.Route, name string, isStopping *uint32,
+	errChan chan error, initializeFunc flowInitializeFunc) *flow {
+
 	return &flow{
 		name: name,
 		executeFunc: func(peer *peerpkg.Peer) {

app/rpc/manager.go

@@ -64,17 +64,22 @@ 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
 	}
 
-	msgBlock := appmessage.DomainBlockToMsgBlock(block)
-	blockVerboseData, err := m.context.BuildBlockVerboseData(block.Header, block, false)
+	rpcBlock := appmessage.DomainBlockToRPCBlock(block)
+	err = m.context.PopulateBlockWithVerboseData(rpcBlock, block.Header, block, false)
 	if err != nil {
 		return err
 	}
-	blockAddedNotification := appmessage.NewBlockAddedNotificationMessage(msgBlock, blockVerboseData)
+	blockAddedNotification := appmessage.NewBlockAddedNotificationMessage(rpcBlock)
 	return m.context.NotificationManager.NotifyBlockAdded(blockAddedNotification)
 }
 
@@ -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/utxos_by_addresses.go

@@ -24,7 +24,7 @@ func ConvertUTXOOutpointEntryPairsToUTXOsByAddressesEntries(address string, pair
 			UTXOEntry: &appmessage.RPCUTXOEntry{
 				Amount:          utxoEntry.Amount(),
 				ScriptPublicKey: &appmessage.RPCScriptPublicKey{Script: hex.EncodeToString(utxoEntry.ScriptPublicKey().Script), Version: utxoEntry.ScriptPublicKey().Version},
-				BlockBlueScore:  utxoEntry.BlockBlueScore(),
+				BlockDAAScore:   utxoEntry.BlockDAAScore(),
 				IsCoinbase:      utxoEntry.IsCoinbase(),
 			},
 		})

app/rpc/rpccontext/verbosedata.go

@@ -2,14 +2,10 @@ package rpccontext
 
 import (
 	"encoding/hex"
-	"fmt"
 	"math"
 	"math/big"
-	"strconv"
 
-	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
-	"github.com/kaspanet/kaspad/infrastructure/logger"
-	"github.com/kaspanet/kaspad/util/difficulty"
+	difficultyPackage "github.com/kaspanet/kaspad/util/difficulty"
 	"github.com/pkg/errors"
 
 	"github.com/kaspanet/kaspad/domain/consensus/utils/hashes"
@@ -17,8 +13,6 @@ import (
 	"github.com/kaspanet/kaspad/domain/consensus/utils/estimatedsize"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
 
-	"github.com/kaspanet/kaspad/domain/consensus/utils/subnetworks"
-
 	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
@@ -28,79 +22,6 @@ import (
 // ErrBuildBlockVerboseDataInvalidBlock indicates that a block that was given to BuildBlockVerboseData is invalid.
 var ErrBuildBlockVerboseDataInvalidBlock = errors.New("ErrBuildBlockVerboseDataInvalidBlock")
 
-// BuildBlockVerboseData builds a BlockVerboseData from the given blockHeader.
-// A block may optionally also be given if it's available in the calling context.
-func (ctx *Context) BuildBlockVerboseData(blockHeader externalapi.BlockHeader, block *externalapi.DomainBlock,
-	includeTransactionVerboseData bool) (*appmessage.BlockVerboseData, error) {
-
-	onEnd := logger.LogAndMeasureExecutionTime(log, "BuildBlockVerboseData")
-	defer onEnd()
-
-	hash := consensushashing.HeaderHash(blockHeader)
-
-	blockInfo, err := ctx.Domain.Consensus().GetBlockInfo(hash)
-	if err != nil {
-		return nil, err
-	}
-
-	if blockInfo.BlockStatus == externalapi.StatusInvalid {
-		return nil, errors.Wrap(ErrBuildBlockVerboseDataInvalidBlock, "cannot build verbose data for "+
-			"invalid block")
-	}
-
-	childrenHashes, err := ctx.Domain.Consensus().GetBlockChildren(hash)
-	if err != nil {
-		return nil, err
-	}
-
-	result := &appmessage.BlockVerboseData{
-		Hash:                 hash.String(),
-		Version:              blockHeader.Version(),
-		VersionHex:           fmt.Sprintf("%08x", blockHeader.Version()),
-		HashMerkleRoot:       blockHeader.HashMerkleRoot().String(),
-		AcceptedIDMerkleRoot: blockHeader.AcceptedIDMerkleRoot().String(),
-		UTXOCommitment:       blockHeader.UTXOCommitment().String(),
-		ParentHashes:         hashes.ToStrings(blockHeader.ParentHashes()),
-		ChildrenHashes:       hashes.ToStrings(childrenHashes),
-		Nonce:                blockHeader.Nonce(),
-		Time:                 blockHeader.TimeInMilliseconds(),
-		Bits:                 strconv.FormatInt(int64(blockHeader.Bits()), 16),
-		Difficulty:           ctx.GetDifficultyRatio(blockHeader.Bits(), ctx.Config.ActiveNetParams),
-		BlueScore:            blockInfo.BlueScore,
-		IsHeaderOnly:         blockInfo.BlockStatus == externalapi.StatusHeaderOnly,
-	}
-
-	if blockInfo.BlockStatus != externalapi.StatusHeaderOnly {
-		if block == nil {
-			block, err = ctx.Domain.Consensus().GetBlock(hash)
-			if err != nil {
-				return nil, err
-			}
-		}
-
-		txIDs := make([]string, len(block.Transactions))
-		for i, tx := range block.Transactions {
-			txIDs[i] = consensushashing.TransactionID(tx).String()
-		}
-		result.TxIDs = txIDs
-
-		if includeTransactionVerboseData {
-			transactionVerboseData := make([]*appmessage.TransactionVerboseData, len(block.Transactions))
-			for i, tx := range block.Transactions {
-				txID := consensushashing.TransactionID(tx).String()
-				data, err := ctx.BuildTransactionVerboseData(tx, txID, blockHeader, hash.String())
-				if err != nil {
-					return nil, err
-				}
-				transactionVerboseData[i] = data
-			}
-			result.TransactionVerboseData = transactionVerboseData
-		}
-	}
-
-	return result, nil
-}
-
 // GetDifficultyRatio returns the proof-of-work difficulty as a multiple of the
 // minimum difficulty using the passed bits field from the header of a block.
 func (ctx *Context) GetDifficultyRatio(bits uint32, params *dagconfig.Params) float64 {
@@ -108,7 +29,7 @@ func (ctx *Context) GetDifficultyRatio(bits uint32, params *dagconfig.Params) fl
 	// converted back to a number. Note this is not the same as the proof of
 	// work limit directly because the block difficulty is encoded in a block
 	// with the compact form which loses precision.
-	target := difficulty.CompactToBig(bits)
+	target := difficultyPackage.CompactToBig(bits)
 
 	difficulty := new(big.Rat).SetFrac(params.PowMax, target)
 	diff, _ := difficulty.Float64()
@@ -119,106 +40,128 @@ func (ctx *Context) GetDifficultyRatio(bits uint32, params *dagconfig.Params) fl
 	return diff
 }
 
-// BuildTransactionVerboseData builds a TransactionVerboseData from
-// the given parameters
-func (ctx *Context) BuildTransactionVerboseData(tx *externalapi.DomainTransaction, txID string,
-	blockHeader externalapi.BlockHeader, blockHash string) (
-	*appmessage.TransactionVerboseData, error) {
+// PopulateBlockWithVerboseData populates the given `block` with verbose
+// data from `domainBlockHeader` and optionally from `domainBlock`
+func (ctx *Context) PopulateBlockWithVerboseData(block *appmessage.RPCBlock, domainBlockHeader externalapi.BlockHeader,
+	domainBlock *externalapi.DomainBlock, includeTransactionVerboseData bool) error {
 
-	onEnd := logger.LogAndMeasureExecutionTime(log, "BuildTransactionVerboseData")
-	defer onEnd()
+	blockHash := consensushashing.HeaderHash(domainBlockHeader)
 
-	var payloadHash string
-	if tx.SubnetworkID != subnetworks.SubnetworkIDNative {
-		payloadHash = tx.PayloadHash.String()
+	blockInfo, err := ctx.Domain.Consensus().GetBlockInfo(blockHash)
+	if err != nil {
+		return err
 	}
 
-	txReply := &appmessage.TransactionVerboseData{
-		TxID:                      txID,
-		Hash:                      consensushashing.TransactionHash(tx).String(),
-		Size:                      estimatedsize.TransactionEstimatedSerializedSize(tx),
-		TransactionVerboseInputs:  ctx.buildTransactionVerboseInputs(tx),
-		TransactionVerboseOutputs: ctx.buildTransactionVerboseOutputs(tx, nil),
-		Version:                   tx.Version,
-		LockTime:                  tx.LockTime,
-		SubnetworkID:              tx.SubnetworkID.String(),
-		Gas:                       tx.Gas,
-		PayloadHash:               payloadHash,
-		Payload:                   hex.EncodeToString(tx.Payload),
+	if blockInfo.BlockStatus == externalapi.StatusInvalid {
+		return errors.Wrap(ErrBuildBlockVerboseDataInvalidBlock, "cannot build verbose data for "+
+			"invalid block")
 	}
 
-	if blockHeader != nil {
-		txReply.Time = uint64(blockHeader.TimeInMilliseconds())
-		txReply.BlockTime = uint64(blockHeader.TimeInMilliseconds())
-		txReply.BlockHash = blockHash
+	_, selectedParentHash, childrenHashes, err := ctx.Domain.Consensus().GetBlockRelations(blockHash)
+	if err != nil {
+		return err
 	}
 
-	return txReply, nil
-}
+	block.VerboseData = &appmessage.RPCBlockVerboseData{
+		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()
+	}
 
-func (ctx *Context) buildTransactionVerboseInputs(tx *externalapi.DomainTransaction) []*appmessage.TransactionVerboseInput {
-	inputs := make([]*appmessage.TransactionVerboseInput, len(tx.Inputs))
-	for i, transactionInput := range tx.Inputs {
-		// The disassembled string will contain [error] inline
-		// if the script doesn't fully parse, so ignore the
-		// error here.
-		disbuf, _ := txscript.DisasmString(constants.MaxScriptPublicKeyVersion, transactionInput.SignatureScript)
+	if blockInfo.BlockStatus == externalapi.StatusHeaderOnly {
+		return nil
+	}
 
-		input := &appmessage.TransactionVerboseInput{}
-		input.TxID = transactionInput.PreviousOutpoint.TransactionID.String()
-		input.OutputIndex = transactionInput.PreviousOutpoint.Index
-		input.Sequence = transactionInput.Sequence
-		input.ScriptSig = &appmessage.ScriptSig{
-			Asm: disbuf,
-			Hex: hex.EncodeToString(transactionInput.SignatureScript),
+	// Get the block if we didn't receive it previously
+	if domainBlock == nil {
+		domainBlock, err = ctx.Domain.Consensus().GetBlockEvenIfHeaderOnly(blockHash)
+		if err != nil {
+			return err
 		}
-		inputs[i] = input
 	}
 
-	return inputs
-}
+	transactionIDs := make([]string, len(domainBlock.Transactions))
+	for i, transaction := range domainBlock.Transactions {
+		transactionIDs[i] = consensushashing.TransactionID(transaction).String()
+	}
+	block.VerboseData.TransactionIDs = transactionIDs
 
-// buildTransactionVerboseOutputs returns a slice of JSON objects for the outputs of the passed
-// transaction.
-func (ctx *Context) buildTransactionVerboseOutputs(tx *externalapi.DomainTransaction, filterAddrMap map[string]struct{}) []*appmessage.TransactionVerboseOutput {
-	outputs := make([]*appmessage.TransactionVerboseOutput, len(tx.Outputs))
-	for i, transactionOutput := range tx.Outputs {
-
-		// Ignore the error here since an error means the script
-		// couldn't parse and there is no additional information about
-		// it anyways.
-		scriptClass, addr, _ := txscript.ExtractScriptPubKeyAddress(
-			transactionOutput.ScriptPublicKey, ctx.Config.ActiveNetParams)
-
-		// Encode the addresses while checking if the address passes the
-		// filter when needed.
-		passesFilter := len(filterAddrMap) == 0
-		var encodedAddr string
-		if addr != nil {
-			encodedAddr = addr.EncodeAddress()
-
-			// If the filter doesn't already pass, make it pass if
-			// the address exists in the filter.
-			if _, exists := filterAddrMap[encodedAddr]; exists {
-				passesFilter = true
+	if includeTransactionVerboseData {
+		for _, transaction := range block.Transactions {
+			err := ctx.PopulateTransactionWithVerboseData(transaction, domainBlockHeader)
+			if err != nil {
+				return err
 			}
 		}
-
-		if !passesFilter {
-			continue
-		}
-
-		output := &appmessage.TransactionVerboseOutput{}
-		output.Index = uint32(i)
-		output.Value = transactionOutput.Value
-		output.ScriptPubKey = &appmessage.ScriptPubKeyResult{
-			Version: transactionOutput.ScriptPublicKey.Version,
-			Address: encodedAddr,
-			Hex:     hex.EncodeToString(transactionOutput.ScriptPublicKey.Script),
-			Type:    scriptClass.String(),
-		}
-		outputs[i] = output
 	}
 
-	return outputs
+	return nil
+}
+
+// PopulateTransactionWithVerboseData populates the given `transaction` with
+// verbose data from `domainTransaction`
+func (ctx *Context) PopulateTransactionWithVerboseData(
+	transaction *appmessage.RPCTransaction, domainBlockHeader externalapi.BlockHeader) error {
+
+	domainTransaction, err := appmessage.RPCTransactionToDomainTransaction(transaction)
+	if err != nil {
+		return err
+	}
+
+	transaction.VerboseData = &appmessage.RPCTransactionVerboseData{
+		TransactionID: consensushashing.TransactionID(domainTransaction).String(),
+		Hash:          consensushashing.TransactionHash(domainTransaction).String(),
+		Size:          estimatedsize.TransactionEstimatedSerializedSize(domainTransaction),
+	}
+	if domainBlockHeader != nil {
+		transaction.VerboseData.BlockHash = consensushashing.HeaderHash(domainBlockHeader).String()
+		transaction.VerboseData.BlockTime = uint64(domainBlockHeader.TimeInMilliseconds())
+	}
+	for _, input := range transaction.Inputs {
+		ctx.populateTransactionInputWithVerboseData(input)
+	}
+	for _, output := range transaction.Outputs {
+		err := ctx.populateTransactionOutputWithVerboseData(output)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (ctx *Context) populateTransactionInputWithVerboseData(transactionInput *appmessage.RPCTransactionInput) {
+	transactionInput.VerboseData = &appmessage.RPCTransactionInputVerboseData{}
+}
+
+func (ctx *Context) populateTransactionOutputWithVerboseData(transactionOutput *appmessage.RPCTransactionOutput) error {
+	scriptPublicKey, err := hex.DecodeString(transactionOutput.ScriptPublicKey.Script)
+	if err != nil {
+		return err
+	}
+	domainScriptPublicKey := &externalapi.ScriptPublicKey{
+		Script:  scriptPublicKey,
+		Version: transactionOutput.ScriptPublicKey.Version,
+	}
+
+	// Ignore the error here since an error means the script
+	// couldn't be parsed and there's no additional information about
+	// it anyways
+	scriptPublicKeyType, scriptPublicKeyAddress, _ := txscript.ExtractScriptPubKeyAddress(
+		domainScriptPublicKey, ctx.Config.ActiveNetParams)
+
+	var encodedScriptPublicKeyAddress string
+	if scriptPublicKeyAddress != nil {
+		encodedScriptPublicKeyAddress = scriptPublicKeyAddress.EncodeAddress()
+	}
+	transactionOutput.VerboseData = &appmessage.RPCTransactionOutputVerboseData{
+		ScriptPublicKeyType:    scriptPublicKeyType.String(),
+		ScriptPublicKeyAddress: encodedScriptPublicKeyAddress,
+	}
+	return nil
 }

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

@@ -20,7 +20,7 @@ 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)
@@ -29,7 +29,13 @@ func HandleGetBlock(context *rpccontext.Context, _ *router.Router, request appme
 
 	response := appmessage.NewGetBlockResponseMessage()
 
-	blockVerboseData, err := context.BuildBlockVerboseData(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{}
@@ -39,7 +45,5 @@ func HandleGetBlock(context *rpccontext.Context, _ *router.Router, request appme
 		return nil, err
 	}
 
-	response.BlockVerboseData = blockVerboseData
-
 	return response, nil
 }

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_block_template.go

@@ -31,12 +31,12 @@ func HandleGetBlockTemplate(context *rpccontext.Context, _ *router.Router, reque
 	if err != nil {
 		return nil, err
 	}
-	msgBlock := appmessage.DomainBlockToMsgBlock(templateBlock)
+	rpcBlock := appmessage.DomainBlockToRPCBlock(templateBlock)
 
 	isSynced, err := context.ProtocolManager.ShouldMine()
 	if err != nil {
 		return nil, err
 	}
 
-	return appmessage.NewGetBlockTemplateResponseMessage(msgBlock, isSynced), nil
+	return appmessage.NewGetBlockTemplateResponseMessage(rpcBlock, isSynced), 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 IncludeBlockVerboseData
-	if !getBlocksRequest.IncludeBlockVerboseData && 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
 	}
 
@@ -55,8 +55,7 @@ func HandleGetBlocks(context *rpccontext.Context, _ *router.Router, request appm
 	if err != nil {
 		return nil, err
 	}
-	blockHashes, err := context.Domain.Consensus().GetHashesBetween(
-		lowHash, virtualSelectedParent, maxBlocksInGetBlocksResponse)
+	blockHashes, highHash, err := context.Domain.Consensus().GetHashesBetween(lowHash, virtualSelectedParent, maxBlocksInGetBlocksResponse)
 	if err != nil {
 		return nil, err
 	}
@@ -64,9 +63,10 @@ func HandleGetBlocks(context *rpccontext.Context, _ *router.Router, request appm
 	// prepend low hash to make it inclusive
 	blockHashes = append([]*externalapi.DomainHash{lowHash}, blockHashes...)
 
-	// If there are no maxBlocksInGetBlocksResponse between lowHash and virtualSelectedParent -
-	// add virtualSelectedParent's anticone
-	if len(blockHashes) < maxBlocksInGetBlocksResponse {
+	// If the high hash is equal to virtualSelectedParent it means GetHashesBetween didn't skip any hashes, and
+	// there's space to add the virtualSelectedParent's anticone, otherwise you can't add the anticone because
+	// there's no guarantee that all of the anticone root ancestors will be present.
+	if highHash.Equal(virtualSelectedParent) {
 		virtualSelectedParentAnticone, err := context.Domain.Consensus().Anticone(virtualSelectedParent)
 		if err != nil {
 			return nil, err
@@ -81,26 +81,28 @@ func HandleGetBlocks(context *rpccontext.Context, _ *router.Router, request appm
 	}
 
 	// Prepare the response
-	response := &appmessage.GetBlocksResponseMessage{
-		BlockHashes: hashes.ToStrings(blockHashes),
-	}
-
-	// Retrieve all block data in case BlockVerboseData was requested
-	if getBlocksRequest.IncludeBlockVerboseData {
-		response.BlockVerboseData = make([]*appmessage.BlockVerboseData, len(blockHashes))
+	response := appmessage.NewGetBlocksResponseMessage()
+	response.BlockHashes = hashes.ToStrings(blockHashes)
+	if getBlocksRequest.IncludeBlocks {
+		rpcBlocks := make([]*appmessage.RPCBlock, len(blockHashes))
 		for i, blockHash := range blockHashes {
-			blockHeader, err := context.Domain.Consensus().GetBlockHeader(blockHash)
-			if err != nil {
-				return nil, err
-			}
-			blockVerboseData, err := context.BuildBlockVerboseData(blockHeader, nil,
-				getBlocksRequest.IncludeTransactionVerboseData)
+			block, err := context.Domain.Consensus().GetBlockEvenIfHeaderOnly(blockHash)
 			if err != nil {
 				return nil, err
 			}
 
-			response.BlockVerboseData[i] = blockVerboseData
+			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

@@ -5,6 +5,8 @@ import (
 	"sort"
 	"testing"
 
+	"github.com/kaspanet/kaspad/domain/consensus/model"
+
 	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/app/rpc/rpccontext"
 	"github.com/kaspanet/kaspad/app/rpc/rpchandlers"
@@ -13,7 +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"
 )
@@ -26,16 +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},
 		}
 
@@ -55,7 +58,7 @@ func TestHandleGetBlocks(t *testing.T) {
 			antipast := make([]*externalapi.DomainHash, 0, len(slice))
 
 			for _, blockHash := range slice {
-				isInPastOfPovBlock, err := tc.DAGTopologyManager().IsAncestorOf(blockHash, povBlock)
+				isInPastOfPovBlock, err := tc.DAGTopologyManager().IsAncestorOf(stagingArea, blockHash, povBlock)
 				if err != nil {
 					t.Fatalf("Failed doing reachability check: '%v'", err)
 				}
@@ -77,7 +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++ {
@@ -87,7 +90,7 @@ func TestHandleGetBlocks(t *testing.T) {
 				}
 				splitBlocks = append(splitBlocks, blockHash)
 			}
-			sort.Sort(sort.Reverse(testutils.NewTestGhostDAGSorter(splitBlocks, tc, t)))
+			sort.Sort(sort.Reverse(testutils.NewTestGhostDAGSorter(stagingArea, splitBlocks, tc, t)))
 			restOfSplitBlocks, selectedParent := splitBlocks[:len(splitBlocks)-1], splitBlocks[len(splitBlocks)-1]
 			expectedOrder = append(expectedOrder, selectedParent)
 			expectedOrder = append(expectedOrder, restOfSplitBlocks...)
@@ -130,13 +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/get_info.go

@@ -8,6 +8,10 @@ import (
 
 // HandleGetInfo handles the respectively named RPC command
 func HandleGetInfo(context *rpccontext.Context, _ *router.Router, _ appmessage.Message) (appmessage.Message, error) {
-	response := appmessage.NewGetInfoResponseMessage(context.NetAdapter.ID().String())
+	response := appmessage.NewGetInfoResponseMessage(
+		context.NetAdapter.ID().String(),
+		uint64(context.Domain.MiningManager().TransactionCount()),
+	)
+
 	return response, nil
 }

app/rpc/rpchandlers/get_mempool_entries.go

@@ -3,25 +3,22 @@ package rpchandlers
 import (
 	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/app/rpc/rpccontext"
-	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
 	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
 )
 
 // HandleGetMempoolEntries handles the respectively named RPC command
 func HandleGetMempoolEntries(context *rpccontext.Context, _ *router.Router, _ appmessage.Message) (appmessage.Message, error) {
-
 	transactions := context.Domain.MiningManager().AllTransactions()
 	entries := make([]*appmessage.MempoolEntry, 0, len(transactions))
-	for _, tx := range transactions {
-		transactionVerboseData, err := context.BuildTransactionVerboseData(
-			tx, consensushashing.TransactionID(tx).String(), nil, "")
+	for _, transaction := range transactions {
+		rpcTransaction := appmessage.DomainTransactionToRPCTransaction(transaction)
+		err := context.PopulateTransactionWithVerboseData(rpcTransaction, nil)
 		if err != nil {
 			return nil, err
 		}
-
 		entries = append(entries, &appmessage.MempoolEntry{
-			Fee:                    tx.Fee,
-			TransactionVerboseData: transactionVerboseData,
+			Fee:         transaction.Fee,
+			Transaction: rpcTransaction,
 		})
 	}
 

app/rpc/rpchandlers/get_mempool_entry.go

@@ -24,12 +24,11 @@ func HandleGetMempoolEntry(context *rpccontext.Context, _ *router.Router, reques
 		errorMessage.Error = appmessage.RPCErrorf("Transaction %s was not found", transactionID)
 		return errorMessage, nil
 	}
-
-	transactionVerboseData, err := context.BuildTransactionVerboseData(
-		transaction, getMempoolEntryRequest.TxID, nil, "")
+	rpcTransaction := appmessage.DomainTransactionToRPCTransaction(transaction)
+	err = context.PopulateTransactionWithVerboseData(rpcTransaction, nil)
 	if err != nil {
 		return nil, err
 	}
 
-	return appmessage.NewGetMempoolEntryResponseMessage(transaction.Fee, transactionVerboseData), nil
+	return appmessage.NewGetMempoolEntryResponseMessage(transaction.Fee, rpcTransaction), nil
 }

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
+}

app/rpc/rpchandlers/submit_block.go

@@ -14,9 +14,6 @@ import (
 func HandleSubmitBlock(context *rpccontext.Context, _ *router.Router, request appmessage.Message) (appmessage.Message, error) {
 	submitBlockRequest := request.(*appmessage.SubmitBlockRequestMessage)
 
-	msgBlock := submitBlockRequest.Block
-	domainBlock := appmessage.MsgBlockToDomainBlock(msgBlock)
-
 	if context.ProtocolManager.IsIBDRunning() {
 		return &appmessage.SubmitBlockResponseMessage{
 			Error:        appmessage.RPCErrorf("Block not submitted - IBD is running"),
@@ -24,7 +21,15 @@ func HandleSubmitBlock(context *rpccontext.Context, _ *router.Router, request ap
 		}, nil
 	}
 
-	err := context.ProtocolManager.AddBlock(domainBlock)
+	domainBlock, err := appmessage.RPCBlockToDomainBlock(submitBlockRequest.Block)
+	if err != nil {
+		return &appmessage.SubmitBlockResponseMessage{
+			Error:        appmessage.RPCErrorf("Could not parse block: %s", err),
+			RejectReason: appmessage.RejectReasonBlockInvalid,
+		}, nil
+	}
+
+	err = context.ProtocolManager.AddBlock(domainBlock)
 	if err != nil {
 		isProtocolOrRuleError := errors.As(err, &ruleerrors.RuleError{}) || errors.As(err, &protocolerrors.ProtocolError{})
 		if !isProtocolOrRuleError {

app/rpc/rpchandlers/unban.go

@@ -16,7 +16,7 @@ func HandleUnban(context *rpccontext.Context, _ *router.Router, request appmessa
 		errorMessage.Error = appmessage.RPCErrorf("Could not parse IP %s", unbanRequest.IP)
 		return errorMessage, nil
 	}
-	err := context.AddressManager.Unban(appmessage.NewNetAddressIPPort(ip, 0, 0))
+	err := context.AddressManager.Unban(appmessage.NewNetAddressIPPort(ip, 0))
 	if err != nil {
 		errorMessage := &appmessage.UnbanResponseMessage{}
 		errorMessage.Error = appmessage.RPCErrorf("Could not unban IP: %s", err)

changelog.txt

@@ -1,3 +1,63 @@
+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
 ===========================

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/config.go

@@ -24,9 +24,9 @@ const (
 
 var (
 	// Default configuration options
-	defaultHomeDir    = util.AppDataDir("kaspaminer", false)
-	defaultLogFile    = filepath.Join(defaultHomeDir, defaultLogFilename)
-	defaultErrLogFile = filepath.Join(defaultHomeDir, defaultErrLogFilename)
+	defaultAppDir     = util.AppDir("kaspaminer", false)
+	defaultLogFile    = filepath.Join(defaultAppDir, defaultLogFilename)
+	defaultErrLogFile = filepath.Join(defaultAppDir, defaultErrLogFilename)
 	defaultRPCServer  = "localhost"
 )
 

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"
 )
 
@@ -44,34 +40,32 @@ func mineLoop(client *minerClient, numberOfBlocks uint64, targetBlocksPerSecond
 
 	spawn("blocksLoop", func() {
 		const windowSize = 10
-		var expectedDurationForWindow time.Duration
-		var windowExpectedEndTime time.Time
 		hasBlockRateTarget := targetBlocksPerSecond != 0
+		var windowTicker, blockTicker *time.Ticker
+		// We use tickers to limit the block rate:
+		// 1. windowTicker -> makes sure that the last windowSize blocks take at least windowSize*targetBlocksPerSecond.
+		// 2. blockTicker -> makes sure that each block takes at least targetBlocksPerSecond/windowSize.
+		// that way we both allow for fluctuation in block rate but also make sure they're not too big (by an order of magnitude)
 		if hasBlockRateTarget {
-			expectedDurationForWindow = time.Duration(float64(windowSize)/targetBlocksPerSecond) * time.Second
-			windowExpectedEndTime = time.Now().Add(expectedDurationForWindow)
+			windowRate := time.Duration(float64(time.Second) / (targetBlocksPerSecond / windowSize))
+			blockRate := time.Duration(float64(time.Second) / (targetBlocksPerSecond * windowSize))
+			log.Infof("Minimum average time per %d blocks: %s, smaller minimum time per block: %s", windowSize, windowRate, blockRate)
+			windowTicker = time.NewTicker(windowRate)
+			blockTicker = time.NewTicker(blockRate)
+			defer windowTicker.Stop()
+			defer blockTicker.Stop()
 		}
-		blockInWindowIndex := 0
-
-		sleepTime := 0 * time.Second
-
-		for {
+		windowStart := time.Now()
+		for blockIndex := 1; ; blockIndex++ {
 			foundBlockChan <- mineNextBlock(mineWhenNotSynced)
-
 			if hasBlockRateTarget {
-				blockInWindowIndex++
-				if blockInWindowIndex == windowSize-1 {
-					deviation := windowExpectedEndTime.Sub(time.Now())
-					if deviation > 0 {
-						sleepTime = deviation / windowSize
-						log.Infof("Finished to mine %d blocks %s earlier than expected. Setting the miner "+
-							"to sleep %s between blocks to compensate",
-							windowSize, deviation, sleepTime)
-					}
-					blockInWindowIndex = 0
-					windowExpectedEndTime = time.Now().Add(expectedDurationForWindow)
+				<-blockTicker.C
+				if (blockIndex % windowSize) == 0 {
+					tickerStart := time.Now()
+					<-windowTicker.C
+					log.Infof("Finished mining %d blocks in: %s. slept for: %s", windowSize, time.Since(windowStart), time.Since(tickerStart))
+					windowStart = time.Now()
 				}
-				time.Sleep(sleepTime)
 			}
 		}
 	})
@@ -116,13 +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 {
@@ -131,7 +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
 }
@@ -190,17 +188,29 @@ 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.Address())
 			return
 		}
-		templatemanager.Set(template)
 	}
 
 	getBlockTemplate()

cmd/kaspaminer/templatemanager/templatemanager.go

@@ -23,10 +23,14 @@ func Get() (*externalapi.DomainBlock, bool) {
 }
 
 // Set sets the current template to work on
-func Set(template *appmessage.GetBlockTemplateResponseMessage) {
-	block := appmessage.MsgBlockToDomainBlock(template.MsgBlock)
+func Set(template *appmessage.GetBlockTemplateResponseMessage) error {
+	block, err := appmessage.RPCBlockToDomainBlock(template.Block)
+	if err != nil {
+		return err
+	}
 	lock.Lock()
 	defer lock.Unlock()
 	currentTemplate = block
 	isSynced = template.IsSynced
+	return nil
 }

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{
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+	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()
+}