42 lines
849 B
JavaScript
42 lines
849 B
JavaScript
|
// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
|
||
|
|
|
||
|
|
var bscript = require('../../script')
|
||
|
|
var types = require('../../types')
|
||
|
|
var typeforce = require('typeforce')
|
||
|
|
var OPS = require('../../opcodes.json')
|
||
|
|
|
||
|
|
function check (script) {
|
||
|
|
var buffer = bscript.compile(script)
|
||
|
|
|
||
|
|
return buffer.length === 25 &&
|
||
|
|
buffer[0] === OPS.OP_DUP &&
|
||
|
|
buffer[1] === OPS.OP_HASH160 &&
|
||
|
|
buffer[2] === 0x14 &&
|
||
|
|
buffer[23] === OPS.OP_EQUALVERIFY &&
|
||
|
|
buffer[24] === OPS.OP_CHECKSIG
|
||
|
|
}
|
||
|
|
|
||
|
|
function encode (pubKeyHash) {
|
||
|
|
typeforce(types.Hash160bit, pubKeyHash)
|
||
|
|
|
||
|
|
return bscript.compile([
|
||
|
|
OPS.OP_DUP,
|
||
|
|
OPS.OP_HASH160,
|
||
|
|
pubKeyHash,
|
||
|
|
OPS.OP_EQUALVERIFY,
|
||
|
|
OPS.OP_CHECKSIG
|
||
|
|
])
|
||
|
|
}
|
||
|
|
|
||
|
|
function decode (buffer) {
|
||
|
|
typeforce(check, buffer)
|
||
|
|
|
||
|
|
return buffer.slice(3, 23)
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
check: check,
|
||
|
|
decode: decode,
|
||
|
|
encode: encode
|
||
|
|
}
|