Documentation
¶
Overview ¶
Package dogecoin implements Dogecoin transaction building and signing for the manager service. Dogecoin uses the same transaction format as Bitcoin, so we leverage btcsuite libraries.
Package dogecoin implements Dogecoin transaction building and signing for the manager service.
Index ¶
- Constants
- func ApplySignatureToInput(tx *wire.MsgTx, inputIndex int, signatures [][]byte, redeemScript []byte) error
- func BuildP2PKHScriptPubKey(pubkeyHash []byte) ([]byte, error)
- func BuildP2SHAddress(redeemScript []byte) []byte
- func BuildP2SHScriptPubKey(scriptHash []byte) ([]byte, error)
- func BuildRedeemScript(emitterChain vaa.ChainID, emitterContract vaa.Address, ...) ([]byte, error)
- func BuildScriptPubKey(addrType vaa.UTXOAddressType, address []byte) ([]byte, error)
- func DoubleSha256(data []byte) []byte
- func EncodeDERSignature(r, s []byte, hashType txscript.SigHashType) []byte
- func Hash160(data []byte) []byte
- func VoutToBytes(vout uint32) []byte
- type UnsignedTransaction
- func (ut *UnsignedTransaction) ComputeAllSighashes(hashType txscript.SigHashType) ([][]byte, error)
- func (ut *UnsignedTransaction) ComputeSighash(inputIndex int, hashType txscript.SigHashType) ([]byte, error)
- func (ut *UnsignedTransaction) InputCount() int
- func (ut *UnsignedTransaction) OutputCount() int
- func (ut *UnsignedTransaction) SerializeForBroadcast() ([]byte, error)
- func (ut *UnsignedTransaction) TxHash() chainhash.Hash
Constants ¶
const SighashAll = txscript.SigHashAll
SighashAll is the sighash type for signing all inputs and outputs.
Variables ¶
This section is empty.
Functions ¶
func ApplySignatureToInput ¶
func ApplySignatureToInput( tx *wire.MsgTx, inputIndex int, signatures [][]byte, redeemScript []byte, ) error
ApplySignatureToInput applies a signature to a specific input for P2SH multisig. This builds the scriptSig: OP_0 <sig1> <sig2> ... <redeemScript>
func BuildP2PKHScriptPubKey ¶
BuildP2PKHScriptPubKey builds a P2PKH scriptPubKey for a 20-byte pubkey hash. Format: OP_DUP OP_HASH160 <20-byte hash> OP_EQUALVERIFY OP_CHECKSIG
func BuildP2SHAddress ¶
BuildP2SHAddress computes the P2SH address (script hash) for a redeem script. Returns the 20-byte script hash.
func BuildP2SHScriptPubKey ¶
BuildP2SHScriptPubKey builds a P2SH scriptPubKey for a 20-byte script hash. Format: OP_HASH160 <20-byte hash> OP_EQUAL
func BuildRedeemScript ¶
func BuildRedeemScript( emitterChain vaa.ChainID, emitterContract vaa.Address, recipientAddress [32]byte, m uint8, pubkeys [][]byte, ) ([]byte, error)
BuildRedeemScript builds the redeem script as specified in the whitepaper. Format:
<emitter_chain> (2 bytes, u16 BE) <emitter_contract> (32 bytes) OP_2DROP <recipient_address> (32 bytes) OP_DROP OP_M <pubkeys...> OP_N OP_CHECKMULTISIG
func BuildScriptPubKey ¶
func BuildScriptPubKey(addrType vaa.UTXOAddressType, address []byte) ([]byte, error)
BuildScriptPubKey builds a scriptPubKey for the given address type and address bytes.
func DoubleSha256 ¶
DoubleSha256 computes the double SHA256 hash used in Bitcoin/Dogecoin.
func EncodeDERSignature ¶
func EncodeDERSignature(r, s []byte, hashType txscript.SigHashType) []byte
EncodeDERSignature ensures a signature is properly DER-encoded with sighash type appended. The input should be the raw ECDSA signature (r, s) values.
func VoutToBytes ¶
VoutToBytes converts a vout index to little-endian bytes.
Types ¶
type UnsignedTransaction ¶
type UnsignedTransaction struct {
// Tx is the unsigned wire transaction.
Tx *wire.MsgTx
// RedeemScripts contains the redeem script for each input, indexed by input index.
RedeemScripts [][]byte
}
UnsignedTransaction represents an unsigned Dogecoin transaction with metadata needed for signing.
func BuildUnsignedTransaction ¶
func BuildUnsignedTransaction( payload *vaa.UTXOUnlockPayload, redeemScript []byte, ) (*UnsignedTransaction, error)
BuildUnsignedTransaction constructs an unsigned Dogecoin transaction from a UTXO unlock payload. The redeemScript is used for P2SH inputs and must be provided for sighash computation.
func (*UnsignedTransaction) ComputeAllSighashes ¶
func (ut *UnsignedTransaction) ComputeAllSighashes(hashType txscript.SigHashType) ([][]byte, error)
ComputeAllSighashes computes the sighash for all inputs.
func (*UnsignedTransaction) ComputeSighash ¶
func (ut *UnsignedTransaction) ComputeSighash(inputIndex int, hashType txscript.SigHashType) ([]byte, error)
ComputeSighash computes the sighash for a specific input using the legacy sighash algorithm. This is used for P2SH multisig signing in Dogecoin.
func (*UnsignedTransaction) InputCount ¶
func (ut *UnsignedTransaction) InputCount() int
InputCount returns the number of inputs in the transaction.
func (*UnsignedTransaction) OutputCount ¶
func (ut *UnsignedTransaction) OutputCount() int
OutputCount returns the number of outputs in the transaction.
func (*UnsignedTransaction) SerializeForBroadcast ¶
func (ut *UnsignedTransaction) SerializeForBroadcast() ([]byte, error)
SerializeForBroadcast serializes the transaction for network broadcast. Note: This should only be called after all signatures have been applied.
func (*UnsignedTransaction) TxHash ¶
func (ut *UnsignedTransaction) TxHash() chainhash.Hash
TxHash returns the transaction hash (txid) in the standard Bitcoin/Dogecoin format.
Source Files