@hdwallet/core
Version:
A complete Hierarchical Deterministic (HD) Wallet generator for 200+ cryptocurrencies, built with TypeScript.
58 lines • 3.02 kB
JavaScript
;
// SPDX-License-Identifier: MIT
Object.defineProperty(exports, "__esModule", { value: true });
exports.P2SHAddress = void 0;
const base58_1 = require("../libs/base58");
const consts_1 = require("../consts");
const eccs_1 = require("../eccs");
const cryptocurrencies_1 = require("../cryptocurrencies");
const crypto_1 = require("../crypto");
const exceptions_1 = require("../exceptions");
const utils_1 = require("../utils");
const address_1 = require("./address");
class P2SHAddress extends address_1.Address {
static scriptAddressPrefix = cryptocurrencies_1.Bitcoin.NETWORKS.MAINNET.SCRIPT_ADDRESS_PREFIX;
static alphabet = cryptocurrencies_1.Bitcoin.PARAMS.ALPHABET;
static getName() {
return 'P2SH';
}
static encode(publicKey, options = {
scriptAddressPrefix: this.scriptAddressPrefix,
publicKeyType: consts_1.PUBLIC_KEY_TYPES.COMPRESSED,
alphabet: this.alphabet
}) {
const prefixValue = options.scriptAddressPrefix ?? this.scriptAddressPrefix;
const prefixBytes = (0, utils_1.integerToBytes)(prefixValue);
const pk = (0, eccs_1.validateAndGetPublicKey)(publicKey, eccs_1.SLIP10Secp256k1PublicKey);
const rawBytes = options.publicKeyType === consts_1.PUBLIC_KEY_TYPES.UNCOMPRESSED
? pk.getRawUncompressed() : pk.getRawCompressed();
const pubKeyHash = (0, crypto_1.hash160)(rawBytes);
const redeemScriptHex = '76a914' + (0, utils_1.bytesToString)(pubKeyHash) + '88ac';
const redeemScript = (0, utils_1.getBytes)(redeemScriptHex);
const scriptHash = (0, crypto_1.hash160)(redeemScript);
const payload = (0, utils_1.concatBytes)(prefixBytes, scriptHash);
const alphabet = options.alphabet ?? this.alphabet;
return (0, utils_1.ensureString)((0, base58_1.checkEncode)(payload, alphabet));
}
static decode(address, options = {
scriptAddressPrefix: this.scriptAddressPrefix,
alphabet: this.alphabet
}) {
const prefixValue = options.scriptAddressPrefix ?? this.scriptAddressPrefix;
const prefixBytes = (0, utils_1.getBytes)((0, utils_1.integerToBytes)(prefixValue));
const alphabet = options.alphabet ?? this.alphabet;
const decoded = (0, base58_1.checkDecode)(address, alphabet);
const expectedLen = prefixBytes.length + 20;
if (decoded.length !== expectedLen) {
throw new exceptions_1.AddressError('Invalid length', { expected: expectedLen, got: decoded.length });
}
const gotPrefix = decoded.slice(0, prefixBytes.length);
if (!(0, utils_1.equalBytes)(prefixBytes, gotPrefix)) {
throw new exceptions_1.AddressError('Invalid prefix', { expected: (0, utils_1.bytesToHex)(prefixBytes), got: (0, utils_1.bytesToHex)(gotPrefix) });
}
const scriptHash = decoded.slice(prefixBytes.length);
return (0, utils_1.bytesToString)(scriptHash);
}
}
exports.P2SHAddress = P2SHAddress;
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