@hdwallet/core/lib.esm/seeds/electrum/v2.js

A complete Hierarchical Deterministic (HD) Wallet generator for 200+ cryptocurrencies, built with TypeScript.

// SPDX-License-Identifier: MIT
import { Seed } from '../seed';
import { ElectrumV2Mnemonic, ELECTRUM_V2_MNEMONIC_TYPES } from '../../mnemonics';
import { pbkdf2HmacSha512 } from '../../crypto';
import { bytesToString } from '../../utils';
import { MnemonicError, SeedError } from '../../exceptions';
export class ElectrumV2Seed extends Seed {
    static seedSaltModifier = 'electrum';
    static seedPbkdf2Rounds = 2048;
    static getName() {
        return 'Electrum-V2';
    }
    static fromMnemonic(mnemonic, options = {
        mnemonicType: ELECTRUM_V2_MNEMONIC_TYPES.STANDARD
    }) {
        const phrase = typeof mnemonic === 'string' ? mnemonic : mnemonic.getMnemonic();
        if (!ElectrumV2Mnemonic.isValid(phrase, { mnemonicType: options.mnemonicType })) {
            throw new MnemonicError(`Invalid ${this.getName()} mnemonic words`);
        }
        const saltBase = (this.seedSaltModifier + (options.passphrase ?? '')).normalize('NFKD');
        const seedBytes = pbkdf2HmacSha512(phrase, saltBase, this.seedPbkdf2Rounds);
        return bytesToString(seedBytes);
    }
    getMnemonicType() {
        if (!this.options?.mnemonicType) {
            throw new SeedError('mnemonicType is not found');
        }
        return this.options?.mnemonicType;
    }
}
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