@bitgo/utxo-lib
Version:
Client-side Bitcoin JavaScript library
27 lines • 3.62 kB
JavaScript
;
// [pubKeys[0:n-1] OP_CHECKSIGVERIFY] pubKeys[n-1] OP_CHECKSIG
Object.defineProperty(exports, "__esModule", { value: true });
exports.check = check;
const __1 = require("../../");
const __2 = require("../../");
const noble_ecc_1 = require("../../noble_ecc");
function check(script, allowIncomplete) {
const chunks = __1.script.decompile(script);
if (chunks.length < 3)
return false;
const ops = chunks.filter((_, index) => index % 2 === 1);
if (ops[ops.length - 1] !== __2.opcodes.OP_CHECKSIG)
return false;
if (!ops.slice(0, -1).every((op) => op === __2.opcodes.OP_CHECKSIGVERIFY))
return false;
if (chunks.length / 2 > 16)
return false;
if (allowIncomplete)
return true;
const keys = chunks.filter((_, index) => index % 2 === 0);
return keys.every(noble_ecc_1.ecc.isXOnlyPoint);
}
check.toJSON = () => {
return 'taproot n-of-n output';
};
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