bscript

package
v2.0.0-beta.7 Latest Latest
Warning

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

 Go to latest Published: Sep 22, 2021 License: ISC Imports: 12 Imported by: 48

Documentation

Index

Constants

View Source 
const (
	Op0                   byte = 0x00 // 0
	OpZERO                byte = 0x00 // 0
	OpFALSE               byte = 0x00 // 0
	OpDATA1               byte = 0x01 // 1
	OpDATA2               byte = 0x02 // 2
	OpDATA3               byte = 0x03 // 3
	OpDATA4               byte = 0x04 // 4
	OpDATA5               byte = 0x05 // 5
	OpDATA6               byte = 0x06 // 6
	OpDATA7               byte = 0x07 // 7
	OpDATA8               byte = 0x08 // 8
	OpDATA9               byte = 0x09 // 9
	OpDATA10              byte = 0x0a // 10
	OpDATA11              byte = 0x0b // 11
	OpDATA12              byte = 0x0c // 12
	OpDATA13              byte = 0x0d // 13
	OpDATA14              byte = 0x0e // 14
	OpDATA15              byte = 0x0f // 15
	OpDATA16              byte = 0x10 // 16
	OpDATA17              byte = 0x11 // 17
	OpDATA18              byte = 0x12 // 18
	OpDATA19              byte = 0x13 // 19
	OpDATA20              byte = 0x14 // 20
	OpDATA21              byte = 0x15 // 21
	OpDATA22              byte = 0x16 // 22
	OpDATA23              byte = 0x17 // 23
	OpDATA24              byte = 0x18 // 24
	OpDATA25              byte = 0x19 // 25
	OpDATA26              byte = 0x1a // 26
	OpDATA27              byte = 0x1b // 27
	OpDATA28              byte = 0x1c // 28
	OpDATA29              byte = 0x1d // 29
	OpDATA30              byte = 0x1e // 30
	OpDATA31              byte = 0x1f // 31
	OpDATA32              byte = 0x20 // 32
	OpDATA33              byte = 0x21 // 33
	OpDATA34              byte = 0x22 // 34
	OpDATA35              byte = 0x23 // 35
	OpDATA36              byte = 0x24 // 36
	OpDATA37              byte = 0x25 // 37
	OpDATA38              byte = 0x26 // 38
	OpDATA39              byte = 0x27 // 39
	OpDATA40              byte = 0x28 // 40
	OpDATA41              byte = 0x29 // 41
	OpDATA42              byte = 0x2a // 42
	OpDATA43              byte = 0x2b // 43
	OpDATA44              byte = 0x2c // 44
	OpDATA45              byte = 0x2d // 45
	OpDATA46              byte = 0x2e // 46
	OpDATA47              byte = 0x2f // 47
	OpDATA48              byte = 0x30 // 48
	OpDATA49              byte = 0x31 // 49
	OpDATA50              byte = 0x32 // 50
	OpDATA51              byte = 0x33 // 51
	OpDATA52              byte = 0x34 // 52
	OpDATA53              byte = 0x35 // 53
	OpDATA54              byte = 0x36 // 54
	OpDATA55              byte = 0x37 // 55
	OpDATA56              byte = 0x38 // 56
	OpDATA57              byte = 0x39 // 57
	OpDATA58              byte = 0x3a // 58
	OpDATA59              byte = 0x3b // 59
	OpDATA60              byte = 0x3c // 60
	OpDATA61              byte = 0x3d // 61
	OpDATA62              byte = 0x3e // 62
	OpDATA63              byte = 0x3f // 63
	OpDATA64              byte = 0x40 // 64
	OpDATA65              byte = 0x41 // 65
	OpDATA66              byte = 0x42 // 66
	OpDATA67              byte = 0x43 // 67
	OpDATA68              byte = 0x44 // 68
	OpDATA69              byte = 0x45 // 69
	OpDATA70              byte = 0x46 // 70
	OpDATA71              byte = 0x47 // 71
	OpDATA72              byte = 0x48 // 72
	OpDATA73              byte = 0x49 // 73
	OpDATA74              byte = 0x4a // 74
	OpDATA75              byte = 0x4b // 75
	OpPUSHDATA1           byte = 0x4c // 76
	OpPUSHDATA2           byte = 0x4d // 77
	OpPUSHDATA4           byte = 0x4e // 78
	Op1NEGATE             byte = 0x4f // 79
	OpRESERVED            byte = 0x50 // 80
	OpBASE                byte = 0x50 // 80
	Op1                   byte = 0x51 // 81
	OpONE                 byte = 0x51 // 81
	OpTRUE                byte = 0x51 // 81
	Op2                   byte = 0x52 // 82
	Op3                   byte = 0x53 // 83
	Op4                   byte = 0x54 // 84
	Op5                   byte = 0x55 // 85
	Op6                   byte = 0x56 // 86
	Op7                   byte = 0x57 // 87
	Op8                   byte = 0x58 // 88
	Op9                   byte = 0x59 // 89
	Op10                  byte = 0x5a // 90
	Op11                  byte = 0x5b // 91
	Op12                  byte = 0x5c // 92
	Op13                  byte = 0x5d // 93
	Op14                  byte = 0x5e // 94
	Op15                  byte = 0x5f // 95
	Op16                  byte = 0x60 // 96
	OpNOP                 byte = 0x61 // 97
	OpVER                 byte = 0x62 // 98
	OpIF                  byte = 0x63 // 99
	OpNOTIF               byte = 0x64 // 100
	OpVERIF               byte = 0x65 // 101
	OpVERNOTIF            byte = 0x66 // 102
	OpELSE                byte = 0x67 // 103
	OpENDIF               byte = 0x68 // 104
	OpVERIFY              byte = 0x69 // 105
	OpRETURN              byte = 0x6a // 106
	OpTOALTSTACK          byte = 0x6b // 107
	OpFROMALTSTACK        byte = 0x6c // 108
	Op2DROP               byte = 0x6d // 109
	Op2DUP                byte = 0x6e // 110
	Op3DUP                byte = 0x6f // 111
	Op2OVER               byte = 0x70 // 112
	Op2ROT                byte = 0x71 // 113
	Op2SWAP               byte = 0x72 // 114
	OpIFDUP               byte = 0x73 // 115
	OpDEPTH               byte = 0x74 // 116
	OpDROP                byte = 0x75 // 117
	OpDUP                 byte = 0x76 // 118
	OpNIP                 byte = 0x77 // 119
	OpOVER                byte = 0x78 // 120
	OpPICK                byte = 0x79 // 121
	OpROLL                byte = 0x7a // 122
	OpROT                 byte = 0x7b // 123
	OpSWAP                byte = 0x7c // 124
	OpTUCK                byte = 0x7d // 125
	OpCAT                 byte = 0x7e // 126
	OpSPLIT               byte = 0x7f // 127
	OpNUM2BIN             byte = 0x80 // 128
	OpBIN2NUM             byte = 0x81 // 129
	OpSIZE                byte = 0x82 // 130
	OpINVERT              byte = 0x83 // 131
	OpAND                 byte = 0x84 // 132
	OpOR                  byte = 0x85 // 133
	OpXOR                 byte = 0x86 // 134
	OpEQUAL               byte = 0x87 // 135
	OpEQUALVERIFY         byte = 0x88 // 136
	OpRESERVED1           byte = 0x89 // 137
	OpRESERVED2           byte = 0x8a // 138
	Op1ADD                byte = 0x8b // 139
	Op1SUB                byte = 0x8c // 140
	Op2MUL                byte = 0x8d // 141
	Op2DIV                byte = 0x8e // 142
	OpNEGATE              byte = 0x8f // 143
	OpABS                 byte = 0x90 // 144
	OpNOT                 byte = 0x91 // 145
	Op0NOTEQUAL           byte = 0x92 // 146
	OpADD                 byte = 0x93 // 147
	OpSUB                 byte = 0x94 // 148
	OpMUL                 byte = 0x95 // 149
	OpDIV                 byte = 0x96 // 150
	OpMOD                 byte = 0x97 // 151
	OpLSHIFT              byte = 0x98 // 152
	OpRSHIFT              byte = 0x99 // 153
	OpBOOLAND             byte = 0x9a // 154
	OpBOOLOR              byte = 0x9b // 155
	OpNUMEQUAL            byte = 0x9c // 156
	OpNUMEQUALVERIFY      byte = 0x9d // 157
	OpNUMNOTEQUAL         byte = 0x9e // 158
	OpLESSTHAN            byte = 0x9f // 159
	OpGREATERTHAN         byte = 0xa0 // 160
	OpLESSTHANOREQUAL     byte = 0xa1 // 161
	OpGREATERTHANOREQUAL  byte = 0xa2 // 162
	OpMIN                 byte = 0xa3 // 163
	OpMAX                 byte = 0xa4 // 164
	OpWITHIN              byte = 0xa5 // 165
	OpRIPEMD160           byte = 0xa6 // 166
	OpSHA1                byte = 0xa7 // 167
	OpSHA256              byte = 0xa8 // 168
	OpHASH160             byte = 0xa9 // 169
	OpHASH256             byte = 0xaa // 170
	OpCODESEPARATOR       byte = 0xab // 171
	OpCHECKSIG            byte = 0xac // 172
	OpCHECKSIGVERIFY      byte = 0xad // 173
	OpCHECKMULTISIG       byte = 0xae // 174
	OpCHECKMULTISIGVERIFY byte = 0xaf // 175
	OpNOP1                byte = 0xb0 // 176
	OpNOP2                byte = 0xb1 // 177
	OpCHECKLOCKTIMEVERIFY byte = 0xb1 // 177
	OpNOP3                byte = 0xb2 // 178
	OpCHECKSEQUENCEVERIFY byte = 0xb2 // 178
	OpNOP4                byte = 0xb3 // 179
	OpNOP5                byte = 0xb4 // 180
	OpNOP6                byte = 0xb5 // 181
	OpNOP7                byte = 0xb6 // 182
	OpNOP8                byte = 0xb7 // 183
	OpNOP9                byte = 0xb8 // 184
	OpNOP10               byte = 0xb9 // 185
	OpUNKNOWN186          byte = 0xba // 186
	OpUNKNOWN187          byte = 0xbb // 187
	OpUNKNOWN188          byte = 0xbc // 188
	OpUNKNOWN189          byte = 0xbd // 189
	OpUNKNOWN190          byte = 0xbe // 190
	OpUNKNOWN191          byte = 0xbf // 191
	OpUNKNOWN192          byte = 0xc0 // 192
	OpUNKNOWN193          byte = 0xc1 // 193
	OpUNKNOWN194          byte = 0xc2 // 194
	OpUNKNOWN195          byte = 0xc3 // 195
	OpUNKNOWN196          byte = 0xc4 // 196
	OpUNKNOWN197          byte = 0xc5 // 197
	OpUNKNOWN198          byte = 0xc6 // 198
	OpUNKNOWN199          byte = 0xc7 // 199
	OpUNKNOWN200          byte = 0xc8 // 200
	OpUNKNOWN201          byte = 0xc9 // 201
	OpUNKNOWN202          byte = 0xca // 202
	OpUNKNOWN203          byte = 0xcb // 203
	OpUNKNOWN204          byte = 0xcc // 204
	OpUNKNOWN205          byte = 0xcd // 205
	OpUNKNOWN206          byte = 0xce // 206
	OpUNKNOWN207          byte = 0xcf // 207
	OpUNKNOWN208          byte = 0xd0 // 208
	OpUNKNOWN209          byte = 0xd1 // 209
	OpUNKNOWN210          byte = 0xd2 // 210
	OpUNKNOWN211          byte = 0xd3 // 211
	OpUNKNOWN212          byte = 0xd4 // 212
	OpUNKNOWN213          byte = 0xd5 // 213
	OpUNKNOWN214          byte = 0xd6 // 214
	OpUNKNOWN215          byte = 0xd7 // 215
	OpUNKNOWN216          byte = 0xd8 // 216
	OpUNKNOWN217          byte = 0xd9 // 217
	OpUNKNOWN218          byte = 0xda // 218
	OpUNKNOWN219          byte = 0xdb // 219
	OpUNKNOWN220          byte = 0xdc // 220
	OpUNKNOWN221          byte = 0xdd // 221
	OpUNKNOWN222          byte = 0xde // 222
	OpUNKNOWN223          byte = 0xdf // 223
	OpUNKNOWN224          byte = 0xe0 // 224
	OpUNKNOWN225          byte = 0xe1 // 225
	OpUNKNOWN226          byte = 0xe2 // 226
	OpUNKNOWN227          byte = 0xe3 // 227
	OpUNKNOWN228          byte = 0xe4 // 228
	OpUNKNOWN229          byte = 0xe5 // 229
	OpUNKNOWN230          byte = 0xe6 // 230
	OpUNKNOWN231          byte = 0xe7 // 231
	OpUNKNOWN232          byte = 0xe8 // 232
	OpUNKNOWN233          byte = 0xe9 // 233
	OpUNKNOWN234          byte = 0xea // 234
	OpUNKNOWN235          byte = 0xeb // 235
	OpUNKNOWN236          byte = 0xec // 236
	OpUNKNOWN237          byte = 0xed // 237
	OpUNKNOWN238          byte = 0xee // 238
	OpUNKNOWN239          byte = 0xef // 239
	OpUNKNOWN240          byte = 0xf0 // 240
	OpUNKNOWN241          byte = 0xf1 // 241
	OpUNKNOWN242          byte = 0xf2 // 242
	OpUNKNOWN243          byte = 0xf3 // 243
	OpUNKNOWN244          byte = 0xf4 // 244
	OpUNKNOWN245          byte = 0xf5 // 245
	OpUNKNOWN246          byte = 0xf6 // 246
	OpUNKNOWN247          byte = 0xf7 // 247
	OpUNKNOWN248          byte = 0xf8 // 248
	OpUNKNOWN249          byte = 0xf9 // 249
	OpSMALLINTEGER        byte = 0xfa // 250 - bitcoin core internal
	OpPUBKEYS             byte = 0xfb // 251 - bitcoin core internal
	OpUNKNOWN252          byte = 0xfc // 252
	OpPUBKEYHASH          byte = 0xfd // 253 - bitcoin core internal
	OpPUBKEY              byte = 0xfe // 254 - bitcoin core internal
	OpINVALIDOPCODE       byte = 0xff // 255 - bitcoin core
)

BitCoin Script constants. See https://wiki.bitcoinsv.io/index.php/Opcodes_used_in_Bitcoin_Script

View Source 
const (
	ScriptTypePubKey      = "pubkey"
	ScriptTypePubKeyHash  = "pubkeyhash"
	ScriptTypeNonStandard = "nonstandard"
	ScriptTypeMultiSig    = "multisig"
	ScriptTypeNullData    = "nulldata"
)

ScriptKey types.

View Source 
const CurrentVersion = 1

CurrentVersion provides the ability to update the structure of the data that follows it.

View Source 
const NetworkMainnet = 1

NetworkMainnet specifies that the data is only valid for use on the main network.

View Source 
const NetworkTestnet = 2

NetworkTestnet specifies that the data is only valid for use on the test network.

View Source 
const PrefixScript = "bitcoin-script"

PrefixScript is the prefix in the BIP276 standard which specifies if it is a script or template.

View Source 
const PrefixTemplate = "bitcoin-template"

PrefixTemplate is the prefix in the BIP276 standard which specifies if it is a script or template.

Variables

View Source 
var (
	ErrInvalidPKLen  = errors.New("invalid public key length")
	ErrInvalidOpCode = errors.New("invalid opcode data")
	ErrEmptyScript   = errors.New("script is empty")
	ErrNotP2PKH      = errors.New("not a P2PKH")
)

Sentinel errors raised by the package.

Functions

func Base58EncodeMissingChecksum 

func Base58EncodeMissingChecksum(input []byte) string

Base58EncodeMissingChecksum appends a checksum to a byte sequence then encodes into base58 encoding.

func DecodeParts 

func DecodeParts(b []byte) ([][]byte, error)

DecodeParts takes bytes and decodes the opcodes in it returning an array of opcode parts (which could be opcodes or data pushed to the stack).

func DecodeStringParts 

func DecodeStringParts(s string) ([][]byte, error)

DecodeStringParts takes a hex string and decodes the opcodes in it returning an array of opcode parts (which could be opcodes or data pushed to the stack).

func EncodeBIP276 

func EncodeBIP276(script BIP276) string

EncodeBIP276 is used to encode specific (non-standard) scripts in BIP276 format. See https://github.com/moneybutton/bips/blob/master/bip-0276.mediawiki

func EncodeParts 

func EncodeParts(parts [][]byte) ([]byte, error)

EncodeParts takes an array of byte slices and returns a single byte slice with the appropriate OP_PUSH commands embedded. The output can be encoded to a hex string and viewed as a BitCoin script hex string.

For example '76a9140d6cf2ef7bc915d109f77357a71b64fc25e2e11488ac' is the hex string of a P2PKH output script.

func PushDataPrefix 

func PushDataPrefix(data []byte) ([]byte, error)

PushDataPrefix takes a single byte slice of data and returns its OP_PUSHDATA BitCoin encoding prefix based on its length.

For example, the data byte slice '022a8c1a18378885db9054676f17a27f4219045e' would be encoded as '14022a8c1a18378885db9054676f17a27f4219045e' in BitCoin. The OP_PUSHDATA prefix is '14' since the length of the data is 20 bytes (0x14 in decimal is 20).

func ValidateAddress 

func ValidateAddress(address string) (bool, error)

ValidateAddress checks if an address string is a valid BitCoin address (ex. P2PKH, BIP276). Checks both mainnet and testnet.

Types

type Address 

type Address struct {
	AddressString string
	PublicKeyHash string
}

An Address struct contains the address string as well as the hash160 hexstring of the public key. The address string will be human readable and specific to the network type, but the public key hash is useful because it stays the same regardless of the network type (mainnet, testnet).

func NewAddressFromPublicKey 

func NewAddressFromPublicKey(pubKey *bec.PublicKey, mainnet bool) (*Address, error)

NewAddressFromPublicKey takes a bec public key and returns an Address struct pointer. If mainnet parameter is true it will return a mainnet address (starting with a 1). Otherwise (mainnet is false) it will return a testnet address (starting with an m or n).

func NewAddressFromPublicKeyHash 

func NewAddressFromPublicKeyHash(hash []byte, mainnet bool) (*Address, error)

NewAddressFromPublicKeyHash takes a public key hash in bytes and returns an Address struct pointer. If mainnet parameter is true it will return a mainnet address (starting with a 1). Otherwise (mainnet is false) it will return a testnet address (starting with an m or n).

func NewAddressFromPublicKeyString 

func NewAddressFromPublicKeyString(pubKey string, mainnet bool) (*Address, error)

NewAddressFromPublicKeyString takes a public key string and returns an Address struct pointer. If mainnet parameter is true it will return a mainnet address (starting with a 1). Otherwise (mainnet is false) it will return a testnet address (starting with an m or n).

func NewAddressFromString 

func NewAddressFromString(addr string) (*Address, error)

NewAddressFromString takes a string address (P2PKH) and returns a pointer to an Address which contains the address string as well as the public key hash string.

type BIP276 

type BIP276 struct {
	Prefix  string
	Version int
	Network int
	Data    []byte
}

BIP276 proposes a scheme for encoding typed bitcoin related data in a user friendly way see https://github.com/moneybutton/bips/blob/master/bip-0276.mediawiki

func DecodeBIP276 

func DecodeBIP276(text string) (*BIP276, error)

DecodeBIP276 is used to decode BIP276 formatted data into specific (non-standard) scripts. See https://github.com/moneybutton/bips/blob/master/bip-0276.mediawiki

type Script 

type Script []byte

Script type

func NewFromASM 

func NewFromASM(str string) (*Script, error)

NewFromASM creates a new script from a BitCoin ASM formatted string.

func NewFromBytes 

func NewFromBytes(b []byte) *Script

NewFromBytes wraps a byte slice with the Script type.

func NewFromHexString 

func NewFromHexString(s string) (*Script, error)

NewFromHexString creates a new script from a hex encoded string.

func NewP2PKHFromAddress 

func NewP2PKHFromAddress(addr string) (*Script, error)

NewP2PKHFromAddress takes an address and creates a P2PKH script from it.

func NewP2PKHFromPubKeyBytes 

func NewP2PKHFromPubKeyBytes(pubKeyBytes []byte) (*Script, error)

NewP2PKHFromPubKeyBytes takes public key bytes (in compressed format) and creates a P2PKH script from it.

func NewP2PKHFromPubKeyEC 

func NewP2PKHFromPubKeyEC(pubKey *bec.PublicKey) (*Script, error)

NewP2PKHFromPubKeyEC takes a public key hex string (in compressed format) and creates a P2PKH script from it.

func NewP2PKHFromPubKeyHash 

func NewP2PKHFromPubKeyHash(pubKeyHash []byte) (*Script, error)

NewP2PKHFromPubKeyHash takes a public key hex string (in compressed format) and creates a P2PKH script from it.

func NewP2PKHFromPubKeyHashStr 

func NewP2PKHFromPubKeyHashStr(pubKeyHash string) (*Script, error)

NewP2PKHFromPubKeyHashStr takes a public key hex string (in compressed format) and creates a P2PKH script from it.

func NewP2PKHFromPubKeyStr 

func NewP2PKHFromPubKeyStr(pubKey string) (*Script, error)

NewP2PKHFromPubKeyStr takes a public key hex string (in compressed format) and creates a P2PKH script from it.

func NewP2PKHUnlockingScript 

func NewP2PKHUnlockingScript(pubKey []byte, sig []byte, sigHashFlag sighash.Flag) (*Script, error)

NewP2PKHUnlockingScript creates a new unlocking script which spends a P2PKH locking script from a public key, a signature, and a SIGHASH flag.

func (*Script) Addresses 

func (s *Script) Addresses() ([]string, error)

Addresses will return all addresses found in the script, if any.

func (*Script) AppendOpCode 

func (s *Script) AppendOpCode(o uint8) *Script

AppendOpCode appends an opcode type to the script

func (*Script) AppendPushData 

func (s *Script) AppendPushData(d []byte) error

AppendPushData takes data bytes and appends them to the script with proper PUSHDATA prefixes

func (*Script) AppendPushDataArray 

func (s *Script) AppendPushDataArray(d [][]byte) error

AppendPushDataArray takes an array of data bytes and appends them to the script with proper PUSHDATA prefixes

func (*Script) AppendPushDataHexString 

func (s *Script) AppendPushDataHexString(str string) error

AppendPushDataHexString takes a hex string and appends them to the script with proper PUSHDATA prefixes

func (*Script) AppendPushDataString 

func (s *Script) AppendPushDataString(str string) error

AppendPushDataString takes a string and appends its UTF-8 encoding to the script with proper PUSHDATA prefixes

func (*Script) AppendPushDataStrings 

func (s *Script) AppendPushDataStrings(strs []string) error

AppendPushDataStrings takes an array of strings and appends their UTF-8 encoding to the script with proper PUSHDATA prefixes

func (*Script) Equals 

func (s *Script) Equals(b *Script) bool

Equals will compare the script to b and return true if they match.

func (*Script) EqualsBytes 

func (s *Script) EqualsBytes(b []byte) bool

EqualsBytes will compare the script to a byte representation of a script, b, and return true if they match.

func (*Script) EqualsHex 

func (s *Script) EqualsHex(h string) bool

EqualsHex will compare the script to a hex string h, if they match then true is returned otherwise false.

func (*Script) IsData 

func (s *Script) IsData() bool

IsData returns true if this is a data output script. This means the script starts with OP_RETURN or OP_FALSE OP_RETURN.

func (*Script) IsMultiSigOut 

func (s *Script) IsMultiSigOut() bool

IsMultiSigOut returns true if this is a multisig output script.

func (*Script) IsP2PK 

func (s *Script) IsP2PK() bool

IsP2PK returns true if this is a public key output script.

func (*Script) IsP2PKH 

func (s *Script) IsP2PKH() bool

IsP2PKH returns true if this is a pay to pubkey hash output script.

func (*Script) IsP2SH 

func (s *Script) IsP2SH() bool

IsP2SH returns true if this is a p2sh output script. TODO: remove all p2sh stuff from repo

func (*Script) PublicKeyHash 

func (s *Script) PublicKeyHash() ([]byte, error)

PublicKeyHash returns a public key hash byte array if the script is a P2PKH script.

func (*Script) ScriptType 

func (s *Script) ScriptType() string

ScriptType returns the type of script this is as a string.

func (*Script) String 

func (s *Script) String() string

String implements the stringer interface and returns the hex string of script.

func (*Script) ToASM 

func (s *Script) ToASM() (string, error)

ToASM returns the string ASM opcodes of the script.

Source Files

View all Source files

Directories

Path Synopsis
Package interpreter implements the bitcoin transaction script language.
 Package interpreter implements the bitcoin transaction script language.

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