wallet.ts
A collection of utilities for building cryptocurrency wallets, written in TypeScript. Requires Node.js 12.0.0+.
(BIP 32)
Hierarchical Deterministic Walletsconst { randomBytes } = require("crypto");
const { HDKey } = require("wallet.ts");
const seed = randomBytes(66);
const masterKey = HDKey.parseMasterSeed(seed);
// => HDKey {...}
const extendedPrivateKey = masterKey.derive("m/44'/60'/0'/0")
.extendedPrivateKey;
// => "xprvA2FBfTJAyLjF5..."
const childKey = HDKey.parseExtendedKey(extendedPrivateKey);
// => HDKey {...}
const wallet = childKey.derive("0");
// => HDKey {...}
const walletPrivateKey = wallet.privateKey;
// => <Buffer 44 04 ce 4a ...>
const walletPublicKey = wallet.publicKey;
// => <Buffer 03 e9 f6 10 ...>
(BIP 39)
Mnemonic code for generating deterministic keysconst { randomBytes } = require("crypto");
const { Mnemonic } = require("wallet.ts");
const mnemonic = Mnemonic.generate(randomBytes(32));
// => Mnemonic {...}
const phrase = mnemonic.phrase;
// => "capital find public couple ..."
const words = mnemonic.words;
// => [ "capital", "find", "public", "couple", ...]
const seed = mnemonic.toSeed();
// => <Buffer cd 07 60 43 ...>
Ethereum Address / EIP 55 checksum
const { EthereumAddress } = require("wallet.ts");
const publicKey = Buffer.from(
"028a8c59fa27d1e0f1643081ff80c3cf0392902acbf76ab0dc9c414b8d115b0ab3",
"hex"
);
const address = EthereumAddress.from(publicKey).address;
// => "0xD11A13f484E2f2bD22d93c3C3131f61c05E876a9"
const valid = EthereumAddress.isValid(address);
// => true
const checksumAddress = EthereumAddress.checksumAddress(
"0xd11a13f484e2f2bd22d93c3c3131f61c05e876a9"
);
// => "0xD11A13f484E2f2bD22d93c3C3131f61c05E876a9"
Bitcoin Address (deprecated)
const { BitcoinAddress } = require("wallet.ts");
const publicKey = Buffer.from(
"0250863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b2352",
"hex"
);
const address = BitcoinAddress.from(publicKey).address;
// => "1PMycacnJaSqwwJqjawXBErnLsZ7RkXUAs"
const valid = BitcoinAddress.isValid(address);
// => true
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Copyright © 2017-2018 HardFork Inc.
This project is licensed under the ISC license.