@bitgo/utxo-lib
Version:
Client-side Bitcoin JavaScript library
57 lines • 7.28 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getKey = getKey;
exports.getKeyTriple = getKeyTriple;
exports.getUncompressedKeyTriple = getUncompressedKeyTriple;
exports.getKeyName = getKeyName;
exports.getDefaultCosigner = getDefaultCosigner;
exports.getWalletKeysForSeed = getWalletKeysForSeed;
exports.getDefaultWalletKeys = getDefaultWalletKeys;
const crypto = require("crypto");
const WalletKeys_1 = require("../bitgo/wallet/WalletKeys");
const secp256k1_1 = require("@bitgo/secp256k1");
const networks_1 = require("../networks");
const bip32 = (0, secp256k1_1.BIP32Factory)(secp256k1_1.ecc);
function getKey(seed) {
return bip32.fromSeed(crypto.createHash('sha256').update(seed).digest());
}
function getKeyTriple(seed) {
return [getKey(seed + '.0'), getKey(seed + '.1'), getKey(seed + '.2')];
}
function getUncompressedKey(input) {
// Using input for deterministic randomness
return secp256k1_1.ECPair.makeRandom({
compressed: false,
network: networks_1.networks.testnet,
rng: () => {
return Buffer.alloc(32, input);
},
});
}
function getUncompressedKeyTriple(inputs) {
return [getUncompressedKey(inputs[0]), getUncompressedKey(inputs[1]), getUncompressedKey(inputs[2])];
}
function getKeyName(triple, k) {
return ['user', 'backup', 'bitgo'][triple.indexOf(k)];
}
function getDefaultCosigner(keyset, signer) {
const eq = (a, b) => a === b || (Buffer.isBuffer(a) && Buffer.isBuffer(b) && a.equals(b));
const [user, backup, bitgo] = keyset;
if (eq(signer, user)) {
return bitgo;
}
if (eq(signer, backup)) {
return bitgo;
}
if (eq(signer, bitgo)) {
return user;
}
throw new Error(`signer not in pubkeys`);
}
function getWalletKeysForSeed(seed) {
return new WalletKeys_1.RootWalletKeys(getKeyTriple(seed));
}
function getDefaultWalletKeys() {
return getWalletKeysForSeed('default');
}
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hwb3J0IGZ1bmN0aW9uIGdldFdhbGxldEtleXNGb3JTZWVkKHNlZWQ6IHN0cmluZyk6IFJvb3RXYWxsZXRLZXlzIHtcbiAgcmV0dXJuIG5ldyBSb290V2FsbGV0S2V5cyhnZXRLZXlUcmlwbGUoc2VlZCkpO1xufVxuXG5leHBvcnQgZnVuY3Rpb24gZ2V0RGVmYXVsdFdhbGxldEtleXMoKTogUm9vdFdhbGxldEtleXMge1xuICByZXR1cm4gZ2V0V2FsbGV0S2V5c0ZvclNlZWQoJ2RlZmF1bHQnKTtcbn1cbiJdfQ==