@ethereumjs/wallet
Version:
Utilities for handling Ethereum keys
71 lines • 2.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.EthereumHDKey = void 0;
// cspell:ignore xprv xpub
const index_js_1 = require("ethereum-cryptography/bip39/index.js");
const hdkey_js_1 = require("ethereum-cryptography/hdkey.js");
const util_1 = require("@ethereumjs/util");
const wallet_ts_1 = require("./wallet.js");
class EthereumHDKey {
constructor(hdkey) {
this._hdkey = hdkey;
}
/**
* Creates an instance based on a seed.
*/
static fromMasterSeed(seedBuffer) {
return new EthereumHDKey(hdkey_js_1.HDKey.fromMasterSeed(seedBuffer));
}
/**
* Creates an instance based on BIP39 mnemonic phrases
*/
static fromMnemonic(mnemonic, passphrase) {
return EthereumHDKey.fromMasterSeed((0, index_js_1.mnemonicToSeedSync)(mnemonic, passphrase));
}
/**
* Create an instance based on a BIP32 extended private or public key.
*/
static fromExtendedKey(base58Key) {
return new EthereumHDKey(hdkey_js_1.HDKey.fromExtendedKey(base58Key));
}
/**
* Returns a BIP32 extended private key (xprv)
*/
privateExtendedKey() {
if (!this._hdkey.privateExtendedKey) {
throw (0, util_1.EthereumJSErrorWithoutCode)('This is a public key only wallet');
}
return this._hdkey.privateExtendedKey;
}
/**
* Return a BIP32 extended public key (xpub)
*/
publicExtendedKey() {
return this._hdkey.publicExtendedKey;
}
/**
* Derives a node based on a path (e.g. m/44'/0'/0/1)
*/
derivePath(path) {
return new EthereumHDKey(this._hdkey.derive(path));
}
/**
* Derive a node based on a child index
*/
deriveChild(index) {
return new EthereumHDKey(this._hdkey.deriveChild(index));
}
/**
* Return a `Wallet` instance as seen above
*/
getWallet() {
if (this._hdkey.privateKey) {
return wallet_ts_1.Wallet.fromPrivateKey(this._hdkey.privateKey);
}
if (!this._hdkey.publicKey)
throw (0, util_1.EthereumJSErrorWithoutCode)('No hdkey');
return wallet_ts_1.Wallet.fromPublicKey(this._hdkey.publicKey, true);
}
}
exports.EthereumHDKey = EthereumHDKey;
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