mirror of
https://github.com/kaspanet/kaspad.git
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f46dec449d
* [NOD-510] Change coinbase flags to kaspad. * [NOD-510] Removed superfluous spaces after periods in comments. * [NOD-510] Rename btcd -> kaspad in the root folder. * [NOD-510] Rename BtcEncode -> KaspaEncode and BtcDecode -> KaspaDecode. * [NOD-510] Rename BtcEncode -> KaspaEncode and BtcDecode -> KaspaDecode. * [NOD-510] Continue renaming btcd -> kaspad. * [NOD-510] Rename btcjson -> kaspajson. * [NOD-510] Rename file names inside kaspajson. * [NOD-510] Rename kaspajson -> jsonrpc. * [NOD-510] Finish renaming in addrmgr. * [NOD-510] Rename package btcec to ecc. * [NOD-510] Finish renaming stuff in blockdag. * [NOD-510] Rename stuff in cmd. * [NOD-510] Rename stuff in config. * [NOD-510] Rename stuff in connmgr. * [NOD-510] Rename stuff in dagconfig. * [NOD-510] Rename stuff in database. * [NOD-510] Rename stuff in docker. * [NOD-510] Rename stuff in integration. * [NOD-510] Rename jsonrpc to rpcmodel. * [NOD-510] Rename stuff in limits. * [NOD-510] Rename stuff in logger. * [NOD-510] Rename stuff in mempool. * [NOD-510] Rename stuff in mining. * [NOD-510] Rename stuff in netsync. * [NOD-510] Rename stuff in peer. * [NOD-510] Rename stuff in release. * [NOD-510] Rename stuff in rpcclient. * [NOD-510] Rename stuff in server. * [NOD-510] Rename stuff in signal. * [NOD-510] Rename stuff in txscript. * [NOD-510] Rename stuff in util. * [NOD-510] Rename stuff in wire. * [NOD-510] Fix failing tests. * [NOD-510] Fix merge errors. * [NOD-510] Fix go vet errors. * [NOD-510] Remove merged file that's no longer relevant. * [NOD-510] Add a comment above Op0. * [NOD-510] Fix some comments referencing Bitcoin Core. * [NOD-510] Fix some more comments referencing Bitcoin Core. * [NOD-510] Fix bitcoin -> kaspa. * [NOD-510] Fix more bitcoin -> kaspa. * [NOD-510] Fix comments, remove DisconnectBlock in addrindex. * [NOD-510] Rename KSPD to KASD. * [NOD-510] Fix comments and user agent.
89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
package main
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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"github.com/kaspanet/kaspad/ecc"
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"github.com/kaspanet/kaspad/txscript"
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"github.com/kaspanet/kaspad/util"
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"github.com/kaspanet/kaspad/wire"
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"os"
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)
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func main() {
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cfg, err := parseCommandLine()
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if err != nil {
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printErrorAndExit(err, "Failed to parse arguments")
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}
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privateKey, err := parsePrivateKey(cfg.PrivateKey)
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if err != nil {
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printErrorAndExit(err, "Failed to decode private key")
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}
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transaction, err := parseTransaction(cfg.Transaction)
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if err != nil {
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printErrorAndExit(err, "Failed to decode transaction")
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}
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scriptPubKey, err := createScriptPubKey(privateKey.PubKey())
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if err != nil {
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printErrorAndExit(err, "Failed to create scriptPubKey")
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}
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err = signTransaction(transaction, privateKey, scriptPubKey)
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if err != nil {
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printErrorAndExit(err, "Failed to sign transaction")
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}
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serializedTransaction, err := serializeTransaction(transaction)
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if err != nil {
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printErrorAndExit(err, "Failed to serialize transaction")
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}
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fmt.Printf("Signed Transaction (hex): %s\n\n", serializedTransaction)
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}
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func parsePrivateKey(privateKeyHex string) (*ecc.PrivateKey, error) {
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privateKeyBytes, err := hex.DecodeString(privateKeyHex)
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privateKey, _ := ecc.PrivKeyFromBytes(ecc.S256(), privateKeyBytes)
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return privateKey, err
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}
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func parseTransaction(transactionHex string) (*wire.MsgTx, error) {
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serializedTx, err := hex.DecodeString(transactionHex)
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var transaction wire.MsgTx
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err = transaction.Deserialize(bytes.NewReader(serializedTx))
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return &transaction, err
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}
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func createScriptPubKey(publicKey *ecc.PublicKey) ([]byte, error) {
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p2pkhAddress, err := util.NewAddressPubKeyHashFromPublicKey(publicKey.SerializeCompressed(), ActiveConfig().NetParams().Prefix)
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scriptPubKey, err := txscript.PayToAddrScript(p2pkhAddress)
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return scriptPubKey, err
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}
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func signTransaction(transaction *wire.MsgTx, privateKey *ecc.PrivateKey, scriptPubKey []byte) error {
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for i, transactionInput := range transaction.TxIn {
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signatureScript, err := txscript.SignatureScript(transaction, i, scriptPubKey, txscript.SigHashAll, privateKey, true)
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if err != nil {
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return err
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}
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transactionInput.SignatureScript = signatureScript
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}
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return nil
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}
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func serializeTransaction(transaction *wire.MsgTx) (string, error) {
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buf := bytes.NewBuffer(make([]byte, 0, transaction.SerializeSize()))
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err := transaction.Serialize(buf)
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serializedTransaction := hex.EncodeToString(buf.Bytes())
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return serializedTransaction, err
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}
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func printErrorAndExit(err error, message string) {
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fmt.Fprintf(os.Stderr, "%s: %s", message, err)
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os.Exit(1)
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}
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