txscript

package
v1.0.6 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Jun 22, 2026 License: ISC Imports: 5 Imported by: 0

Documentation

Overview

Package txscript provides compat stubs for the removed Bitcoin script engine.

Index

Constants

View Source 
const (
	SigHashAll            SigHashType   = 1
	SigHashDefault        SigHashType   = 0
	StandardVerifyFlags                 = 0
	NonStandardTy         ScriptClass   = 0
	PubKeyTy              ScriptClass   = 1
	PubKeyHashTy          ScriptClass   = 2
	WitnessV0PubKeyHashTy ScriptClass   = 3
	ScriptHashTy          ScriptClass   = 4
	WitnessV0ScriptHashTy ScriptClass   = 5
	MultiSigTy            ScriptClass   = 6
	NullDataTy            ScriptClass   = 7
	WitnessV1TaprootTy    ScriptClass   = 8
	TapscriptLeafVersion  uint8         = 0xc0
	TapscriptTypeFullTree TapscriptType = 0
)
View Source 
const (
	OP_0                   = 0x00
	OP_FALSE               = 0x00
	OP_PUSHDATA1           = 0x4c
	OP_PUSHDATA2           = 0x4d
	OP_PUSHDATA4           = 0x4e
	OP_1                   = 0x51
	OP_TRUE                = 0x51
	OP_IF                  = 0x63
	OP_ELSE                = 0x67
	OP_ENDIF               = 0x68
	OP_RETURN              = 0x6a
	OP_DUP                 = 0x76
	OP_EQUAL               = 0x87
	OP_EQUALVERIFY         = 0x88
	OP_2DUP                = 0x6e
	OP_HASH160             = 0xa9
	OP_CHECKSIG            = 0xac
	OP_CHECKSIGVERIFY      = 0xad
	OP_CHECKMULTISIG       = 0xae
	OP_CHECKMULTISIGVERIFY = 0xaf
	OP_INVALIDOPCODE       = 0xff

	// SigHash types
	SigHashSingle       SigHashType = 3
	SigHashNone         SigHashType = 2
	SigHashAnyOneCanPay SigHashType = 0x80
)

--- OP codes ---

Variables

View Source 
var ErrUnsupportedScriptType = fmt.Errorf("unsupported script type")

Functions

func CalcMultiSigStats 

func CalcMultiSigStats(script []byte) (int, int, error)

func ComputeTaprootKeyNoScript 

func ComputeTaprootKeyNoScript(internalKey *nogoec.PublicKey) *nogoec.PublicKey

func ComputeTaprootOutputKey 

func ComputeTaprootOutputKey(internalKey *nogoec.PublicKey, scriptRoot []byte) *nogoec.PublicKey

func DisasmString 

func DisasmString(script []byte) (string, error)

DisasmString returns a human-readable disassembly of the script. Compat stub — script validation is removed per NogoCore design.

func GetKey 

func GetKey(s SecretsSource, addr address.Address) (*nogoec.PrivateKey, bool, error)

func GetPreciseSigOpCount 

func GetPreciseSigOpCount(a, b []byte, c bool) int

func GetSigOpCount 

func GetSigOpCount(script []byte) int

GetSigOpCount returns the number of signature operations in a script. Compat stub.

func Hash160 

func Hash160(data []byte) []byte

func IsCoinBaseTx 

func IsCoinBaseTx(tx *wire.MsgTx) bool

func IsPayToAnchorScript 

func IsPayToAnchorScript(script []byte) bool

func IsPayToScriptHash 

func IsPayToScriptHash(script []byte) bool

func IsPayToTaproot 

func IsPayToTaproot(script []byte) bool

func IsPayToWitnessPubKeyHash 

func IsPayToWitnessPubKeyHash(script []byte) bool

func IsPushOnlyScript 

func IsPushOnlyScript(script []byte) bool

func IsUnspendable 

func IsUnspendable(script []byte) bool

func IsWitnessProgram 

func IsWitnessProgram(script []byte) bool

func MultiSigScript 

func MultiSigScript(pubKeys interface{}, nRequired int) ([]byte, error)

MultiSigScript creates a multisig script. Compat stub.

func PayToAddrScript 

func PayToAddrScript(addr address.Address) ([]byte, error)

func PushedData 

func PushedData(script []byte) ([][]byte, error)

PushedData extracts all data pushed in a script. Compat stub.

func RawTxInSignature 

func RawTxInSignature(tx *wire.MsgTx, idx int, subScript []byte,
	hashType SigHashType, key *nogoec.PrivateKey) ([]byte, error)

RawTxInSignature generates a raw signature for the transaction input. Compat stub.

func SignTxOutput 

func SignTxOutput(chainParams *chaincfg.Params, tx *wire.MsgTx, idx int, pkScript []byte, hashType SigHashType, kdb KeyDB, sdb ScriptDB, previousScript []byte) ([]byte, error)

func TaprootWitnessSignature 

func TaprootWitnessSignature(tx *wire.MsgTx, sigHashes *TxSigHashes, idx int,
	amt int64, pkScript []byte, hashType SigHashType,
	privKey *nogoec.PrivateKey) ([][]byte, error)

TaprootWitnessSignature returns a valid witness stack that can be used to spend the key-spend path of a taproot output. Compat wrapper stub.

func ValidateTransactionScripts 

func ValidateTransactionScripts(tx *wire.MsgTx, view *UtxoViewpoint, flags int, sigCache *SigCache, hashCache *HashCache) error

func WitnessSignature 

func WitnessSignature(tx *wire.MsgTx, sigHashes *TxSigHashes, idx int, amt int64,
	subscript []byte, hashType SigHashType, privKey *nogoec.PrivateKey,
	compress bool) ([][]byte, error)

WitnessSignature creates an input witness stack for tx to spend BTC sent to a P2WPKH / P2WSH output. Compat wrapper stub.

Types

type ComputedPkScript 

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

ComputedPkScript wraps the result of ComputePkScript, providing an Address() method compatible with newer btcd API.

func ComputePkScript 

func ComputePkScript(sigScript []byte, witness wire.TxWitness) (*ComputedPkScript, error)

ComputePkScript reconstructs the pkScript from a signature script and optional witness data. Compat stub.

func (*ComputedPkScript) Address 

func (c *ComputedPkScript) Address(params *chaincfg.Params) (address.Address, error)

Address returns the address derived from the computed pkScript.

type ControlBlock 

type ControlBlock struct {
	InternalKey *nogoec.PublicKey
	RootNode    *TapLeaf
}

func AssembleTaprootScriptTree 

func AssembleTaprootScriptTree(leaves ...TapLeaf) *ControlBlock

func ParseControlBlock 

func ParseControlBlock(b []byte) (*ControlBlock, error)

func (*ControlBlock) RootHash 

func (c *ControlBlock) RootHash(script []byte) []byte

func (*ControlBlock) ToBytes 

func (c *ControlBlock) ToBytes() ([]byte, error)

type Engine 

type Engine struct{}

Engine represents a virtual machine that executes scripts. Compat stub.

func NewEngine 

func NewEngine(scriptPubKey []byte, tx *wire.MsgTx, txIdx int, flags ScriptFlags,
	sigCache *SigCache, hashCache *TxSigHashes, inputAmount int64,
	prevOutFetcher PrevOutputFetcher) (*Engine, error)

NewEngine returns a new script engine. Compat stub.

func (*Engine) Execute 

func (e *Engine) Execute() error

Execute executes the scripts in the engine. Compat stub.

type HashCache 

type HashCache struct{}

type KeyClosure 

type KeyClosure func(address.Address) (*nogoec.PrivateKey, bool, error)

KeyClosure is a closure function type that provides keys.

type KeyDB 

type KeyDB interface{}

type MultiPrevOutFetcher 

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

func NewMultiPrevOutFetcher 

func NewMultiPrevOutFetcher(tx *wire.MsgTx) *MultiPrevOutFetcher

func (*MultiPrevOutFetcher) AddPrevOut 

func (f *MultiPrevOutFetcher) AddPrevOut(op wire.OutPoint, txOut *wire.TxOut)

func (*MultiPrevOutFetcher) FetchPrevOutput 

func (f *MultiPrevOutFetcher) FetchPrevOutput(op wire.OutPoint) *wire.TxOut

type PrevOutputFetcher 

type PrevOutputFetcher interface {
	FetchPrevOutput(wire.OutPoint) *wire.TxOut
}

PrevOutputFetcher defines an interface for fetching previous output info.

type ScriptBuilder 

type ScriptBuilder []byte

func NewScriptBuilder 

func NewScriptBuilder() *ScriptBuilder

NewScriptBuilder returns a new ScriptBuilder.

func (*ScriptBuilder) AddData 

func (b *ScriptBuilder) AddData(data []byte) *ScriptBuilder

AddData adds the passed data as a data push to the script builder.

func (*ScriptBuilder) AddOp 

func (b *ScriptBuilder) AddOp(op byte) *ScriptBuilder

AddOp adds the passed opcode to the script builder.

func (*ScriptBuilder) Script 

func (b *ScriptBuilder) Script() ([]byte, error)

Script returns the built script. Compat stub.

type ScriptClass 

type ScriptClass int

func ExtractPkScriptAddrs 

func ExtractPkScriptAddrs(script []byte, params *chaincfg.Params) (ScriptClass, []address.Address, int, error)

func GetScriptClass 

func GetScriptClass(script []byte) (ScriptClass, error)

GetScriptClass returns the class of the script. Compat stub.

func (ScriptClass) String 

func (s ScriptClass) String() string

String returns the string representation of the ScriptClass.

type ScriptClosure 

type ScriptClosure func(address.Address) ([]byte, error)

ScriptClosure is a closure function type that provides scripts.

type ScriptDB 

type ScriptDB interface{}

type ScriptFlags 

type ScriptFlags = int

ScriptFlags defines flags for script execution.

type SecretsSource 

type SecretsSource interface {
	ChainParams() *chaincfg.Params
	GetKey(addr address.Address) (*nogoec.PrivateKey, bool, error)
}

type SigCache 

type SigCache struct{}

type SigHashType 

type SigHashType uint32

type TapLeaf 

type TapLeaf struct {
	LeafVersion uint8
	Script      []byte
}

func (*TapLeaf) TapHash 

func (t *TapLeaf) TapHash() []byte

type TapscriptType 

type TapscriptType uint8

type TxSigHashes 

type TxSigHashes struct{}

func NewTxSigHashes 

func NewTxSigHashes(tx *wire.MsgTx, fetcher PrevOutputFetcher) *TxSigHashes

type UtxoViewpoint 

type UtxoViewpoint struct{}

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.