wallet.ts

!CI

A collection of utilities for building cryptocurrency wallets, written in
TypeScript. Requires Node.js 12.0.0+.

Hierarchical Deterministic Wallets (BIP 32)

``javascript
const { 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;
// =>

const walletPublicKey = wallet.publicKey;
// =>
`

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Mnemonic code for generating deterministic keys (BIP 39)

`javascript
const { 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();
// =>
`

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Ethereum Address / EIP 55 checksum

`javascript
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"
`

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Bitcoin Address (deprecated)

`javascript
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.