bitcoin

package
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 Go to latest Published: Mar 13, 2020 License: MIT Imports: 32 Imported by: 0

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Constants

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const (
	// RedeemP2PKHSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a compressed P2PKH output.
	// It is calculated as:
	//
	//   - OP_DATA_73
	//   - 72 bytes DER signature + 1 byte sighash
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	RedeemP2PKHSigScriptSize = 1 + 73 + 1 + 33

	// RedeemP2SHMultisigSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a 2 of 3 P2SH multisig output with compressed keys.
	// It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_PUSHDATA
	//   - OP_2
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP3
	//   - OP_CHECKMULTISIG
	RedeemP2SH2of3MultisigSigScriptSize = 1 + 1 + 72 + 1 + 72 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 33 + 1 + 1

	// RedeemP2SH1of2MultisigSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a 1 of 2 P2SH multisig output with compressed keys.
	// It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_PUSHDATA
	//   - OP_1
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP2
	//   - OP_CHECKMULTISIG
	RedeemP2SH1of2MultisigSigScriptSize = 1 + 1 + 72 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 1

	// RedeemP2SHMultisigTimelock1SigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a compressed P2SH timelocked multisig using the timeout.
	// It is calculated as:
	//
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_0
	//   - OP_PUSHDATA
	//   - OP_IF
	//   - OP_2
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP3
	//   - OP_CHECKMULTISIG
	//   - OP_ELSE
	//   - OP_PUSHDATA
	//   - 2 byte block height
	//   - OP_CHECKSEQUENCEVERIFY
	//   - OP_DROP
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_CHECKSIG
	//   - OP_ENDIF
	RedeemP2SHMultisigTimelock1SigScriptSize = 1 + 72 + 1 + 1 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 33 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 33 + 1 + 1

	// RedeemP2SHMultisigTimelock2SigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a compressed P2SH timelocked multisig without using the timeout.
	// It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_1
	//   - OP_PUSHDATA
	//   - OP_IF
	//   - OP_2
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP3
	//   - OP_CHECKMULTISIG
	//   - OP_ELSE
	//   - OP_PUSHDATA
	//   - 2 byte block height
	//   - OP_CHECKSEQUENCEVERIFY
	//   - OP_DROP
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_CHECKSIG
	//   - OP_ENDIF
	RedeemP2SHMultisigTimelock2SigScriptSize = 1 + 1 + 72 + +1 + 72 + 1 + 1 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 33 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 33 + 1 + 1

	// P2PKHPkScriptSize is the size of a transaction output script that
	// pays to a compressed pubkey hash.  It is calculated as:
	//
	//   - OP_DUP
	//   - OP_HASH160
	//   - OP_DATA_20
	//   - 20 bytes pubkey hash
	//   - OP_EQUALVERIFY
	//   - OP_CHECKSIG
	P2PKHPkScriptSize = 1 + 1 + 1 + 20 + 1 + 1

	// RedeemP2PKHInputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2PKH output.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - signature script
	//   - 4 bytes sequence
	RedeemP2PKHInputSize = 32 + 4 + 1 + RedeemP2PKHSigScriptSize + 4

	// RedeemP2SH2of3MultisigInputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2SH 2 of 3 multisig output.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SH2of3MultisigInputSize = 32 + 4 + 1 + 4 + (RedeemP2SH2of3MultisigSigScriptSize / 4)

	// RedeemP2SH1of2MultisigInputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2SH 2 of 3 multisig output.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SH1of2MultisigInputSize = 32 + 4 + 1 + 4 + (RedeemP2SH1of2MultisigSigScriptSize / 4)

	// RedeemP2SHMultisigTimelock1InputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed p2sh timelocked multig output with using the timeout.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SHMultisigTimelock1InputSize = 32 + 4 + 1 + 4 + (RedeemP2SHMultisigTimelock1SigScriptSize / 4)

	// RedeemP2SHMultisigTimelock2InputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2SH timelocked multisig output without using the timeout.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SHMultisigTimelock2InputSize = 32 + 4 + 1 + 4 + (RedeemP2SHMultisigTimelock2SigScriptSize / 4)

	// P2PKHOutputSize is the serialize size of a transaction output with a
	// P2PKH output script.  It is calculated as:
	//
	//   - 8 bytes output value
	//   - 1 byte compact int encoding value 25
	//   - 25 bytes P2PKH output script
	P2PKHOutputSize = 8 + 1 + P2PKHPkScriptSize
)

Worst case script and input/output size estimates.

Variables

This section is empty.

Functions

func EstimateSerializeSize 

func EstimateSerializeSize(inputCount int, txOuts []*wire.TxOut, addChangeOutput bool, inputType InputType) int

EstimateSerializeSize returns a worst case serialize size estimate for a signed transaction that spends inputCount number of compressed P2PKH outputs and contains each transaction output from txOuts. The estimated size is incremented for an additional P2PKH change output if addChangeOutput is true.

func SumOutputSerializeSizes 

func SumOutputSerializeSizes(outputs []*wire.TxOut) (serializeSize int)

SumOutputSerializeSizes sums up the serialized size of the supplied outputs.

Types

type BitcoinWallet 

type BitcoinWallet struct {
	// contains filtered or unexported fields
}

func NewBitcoinWallet 

func NewBitcoinWallet(cfg config.CoinConfig, mnemonic string, params *chaincfg.Params, proxy proxy.Dialer, cache cache.Cacher, disableExchangeRates bool) (*BitcoinWallet, error)

func (*BitcoinWallet) AddTransactionListener 

func (w *BitcoinWallet) AddTransactionListener(callback func(wi.TransactionCallback))

func (*BitcoinWallet) AddWatchedAddresses 

func (w *BitcoinWallet) AddWatchedAddresses(addrs ...btc.Address) error

func (*BitcoinWallet) AddressToScript 

func (w *BitcoinWallet) AddressToScript(addr btc.Address) ([]byte, error)

func (*BitcoinWallet) AssociateTransactionWithOrder 

func (w *BitcoinWallet) AssociateTransactionWithOrder(cb wi.TransactionCallback)

AssociateTransactionWithOrder used for ORDER_PAYMENT message

func (*BitcoinWallet) Balance 

func (w *BitcoinWallet) Balance() (confirmed, unconfirmed int64)

func (*BitcoinWallet) Broadcast 

func (w *BitcoinWallet) Broadcast(tx *wire.MsgTx) error

Build a client.Transaction so we can ingest it into the wallet service then broadcast

func (*BitcoinWallet) BumpFee 

func (w *BitcoinWallet) BumpFee(txid chainhash.Hash) (*chainhash.Hash, error)

func (*BitcoinWallet) ChainTip 

func (w *BitcoinWallet) ChainTip() (uint32, chainhash.Hash)

func (*BitcoinWallet) ChildKey 

func (w *BitcoinWallet) ChildKey(keyBytes []byte, chaincode []byte, isPrivateKey bool) (*hd.ExtendedKey, error)

func (*BitcoinWallet) Close 

func (w *BitcoinWallet) Close()

func (*BitcoinWallet) CreateMultisigSignature 

func (w *BitcoinWallet) CreateMultisigSignature(ins []wi.TransactionInput, outs []wi.TransactionOutput, key *hd.ExtendedKey, redeemScript []byte, feePerByte uint64) ([]wi.Signature, error)

func (*BitcoinWallet) CurrencyCode 

func (w *BitcoinWallet) CurrencyCode() string

func (*BitcoinWallet) CurrentAddress 

func (w *BitcoinWallet) CurrentAddress(purpose wi.KeyPurpose) btc.Address

func (*BitcoinWallet) DecodeAddress 

func (w *BitcoinWallet) DecodeAddress(addr string) (btc.Address, error)

func (*BitcoinWallet) DumpTables 

func (w *BitcoinWallet) DumpTables(wr io.Writer)

func (*BitcoinWallet) EstimateFee 

func (w *BitcoinWallet) EstimateFee(ins []wi.TransactionInput, outs []wi.TransactionOutput, feePerByte uint64) uint64

func (*BitcoinWallet) EstimateSpendFee 

func (w *BitcoinWallet) EstimateSpendFee(amount int64, feeLevel wi.FeeLevel) (uint64, error)

func (*BitcoinWallet) ExchangeRates 

func (w *BitcoinWallet) ExchangeRates() wi.ExchangeRates

func (*BitcoinWallet) GenerateMultisigScript 

func (w *BitcoinWallet) GenerateMultisigScript(keys []hd.ExtendedKey, threshold int, timeout time.Duration, timeoutKey *hd.ExtendedKey) (addr btc.Address, redeemScript []byte, err error)

func (*BitcoinWallet) GetConfirmations 

func (w *BitcoinWallet) GetConfirmations(txid chainhash.Hash) (uint32, uint32, error)

func (*BitcoinWallet) GetFeePerByte 

func (w *BitcoinWallet) GetFeePerByte(feeLevel wi.FeeLevel) uint64

func (*BitcoinWallet) GetTransaction 

func (w *BitcoinWallet) GetTransaction(txid chainhash.Hash) (wi.Txn, error)

func (*BitcoinWallet) HasKey 

func (w *BitcoinWallet) HasKey(addr btc.Address) bool

func (*BitcoinWallet) IsDust 

func (w *BitcoinWallet) IsDust(amount int64) bool

func (*BitcoinWallet) MasterPrivateKey 

func (w *BitcoinWallet) MasterPrivateKey() *hd.ExtendedKey

func (*BitcoinWallet) MasterPublicKey 

func (w *BitcoinWallet) MasterPublicKey() *hd.ExtendedKey

func (*BitcoinWallet) Multisign 

func (w *BitcoinWallet) Multisign(ins []wi.TransactionInput, outs []wi.TransactionOutput, sigs1 []wi.Signature, sigs2 []wi.Signature, redeemScript []byte, feePerByte uint64, broadcast bool) ([]byte, error)

func (*BitcoinWallet) NewAddress 

func (w *BitcoinWallet) NewAddress(purpose wi.KeyPurpose) btc.Address

func (*BitcoinWallet) Params 

func (w *BitcoinWallet) Params() *chaincfg.Params

func (*BitcoinWallet) ReSyncBlockchain 

func (w *BitcoinWallet) ReSyncBlockchain(fromTime time.Time)

func (*BitcoinWallet) ScriptToAddress 

func (w *BitcoinWallet) ScriptToAddress(script []byte) (btc.Address, error)

func (*BitcoinWallet) Spend 

func (w *BitcoinWallet) Spend(amount int64, addr btc.Address, feeLevel wi.FeeLevel, referenceID string, spendAll bool) (*chainhash.Hash, error)

func (*BitcoinWallet) Start 

func (w *BitcoinWallet) Start()

func (*BitcoinWallet) SweepAddress 

func (w *BitcoinWallet) SweepAddress(ins []wi.TransactionInput, address *btc.Address, key *hd.ExtendedKey, redeemScript *[]byte, feeLevel wi.FeeLevel) (*chainhash.Hash, error)

func (*BitcoinWallet) Transactions 

func (w *BitcoinWallet) Transactions() ([]wi.Txn, error)

type InputType 

type InputType int
const (
	P2PKH InputType = iota
	P2SH_1of2_Multisig
	P2SH_2of3_Multisig
	P2SH_Multisig_Timelock_1Sig
	P2SH_Multisig_Timelock_2Sigs
)

Source Files

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