34 lines
689 B
JavaScript
34 lines
689 B
JavaScript
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// OP_HASH160 {scriptHash} OP_EQUAL
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var bscript = require('../../script')
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var types = require('../../types')
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var typeforce = require('typeforce')
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var OPS = require('../../opcodes.json')
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function check (script) {
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var buffer = bscript.compile(script)
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return buffer.length === 23 &&
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buffer[0] === OPS.OP_HASH160 &&
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buffer[1] === 0x14 &&
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buffer[22] === OPS.OP_EQUAL
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}
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function encode (scriptHash) {
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typeforce(types.Hash160bit, scriptHash)
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return bscript.compile([OPS.OP_HASH160, scriptHash, OPS.OP_EQUAL])
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}
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function decode (buffer) {
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typeforce(check, buffer)
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return buffer.slice(2, 22)
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}
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module.exports = {
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check: check,
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decode: decode,
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encode: encode
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}
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