@okxweb3/coin-bitcoin
Version:
@ok/coin-bitcoin is a Bitcoin SDK for building Web3 wallets and applications. It supports BTC, BSV, DOGE, LTC, and TBTC, enabling private key management, transaction signing, address generation, and inscriptions like BRC-20, Runes, CAT, and Atomicals.
73 lines • 2.97 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.makeConverter = void 0;
const varuint = __importStar(require("../varint"));
const bip32Derivation = __importStar(require("./bip32Derivation"));
const isValidBIP340Key = (pubkey) => pubkey.length === 32;
function makeConverter(TYPE_BYTE) {
const parent = bip32Derivation.makeConverter(TYPE_BYTE, isValidBIP340Key);
function decode(keyVal) {
const nHashes = varuint.decode(keyVal.value);
const nHashesLen = varuint.encodingLength(nHashes);
const base = parent.decode({
key: keyVal.key,
value: keyVal.value.slice(nHashesLen + nHashes * 32),
});
const leafHashes = new Array(nHashes);
for (let i = 0, _offset = nHashesLen; i < nHashes; i++, _offset += 32) {
leafHashes[i] = keyVal.value.slice(_offset, _offset + 32);
}
return { ...base, leafHashes };
}
function encode(data) {
const base = parent.encode(data);
const nHashesLen = varuint.encodingLength(data.leafHashes.length);
const nHashesBuf = Buffer.allocUnsafe(nHashesLen);
varuint.encode(data.leafHashes.length, nHashesBuf);
const value = Buffer.concat([nHashesBuf, ...data.leafHashes, base.value]);
return { ...base, value };
}
const expected = '{ ' +
'masterFingerprint: Buffer; ' +
'pubkey: Buffer; ' +
'path: string; ' +
'leafHashes: Buffer[]; ' +
'}';
function check(data) {
return (Array.isArray(data.leafHashes) &&
data.leafHashes.every((leafHash) => Buffer.isBuffer(leafHash) && leafHash.length === 32) &&
parent.check(data));
}
return {
decode,
encode,
check,
expected,
canAddToArray: parent.canAddToArray,
};
}
exports.makeConverter = makeConverter;
//# sourceMappingURL=tapBip32Derivation.js.map