scure-bip39
Secure, audited & minimal implementation of BIP39 mnemonic phrases.
Developed for js-ethereum-cryptography. Check out scure-bip32 if you need hierarchical deterministic wallets ("HD Wallets").
The library has been audited by Cure53 on Jan 5, 2022. Check out the audit PDF & URL. Before the audit it was called micro-base39.
Usage
npm install @scure/bip39
Or
yarn add @scure/bip39
API
import * as bip39 from '@scure/bip39';
import { wordlist } from '@scure/bip39/wordlists/english';
// Generate 12 random words
const mn = bip39.generateMnemonic(wordlist);
console.log(mn);
// Reversible; convert mnemonic to byte array
bip39.entropyToMnemonic(bip39.mnemonicToEntropy(mn, wordlist));
// Validate
bip39.validateMnemonic(mn, wordlist);
// Irreversible, there is no seedToMnemonic
bip39.mnemonicToSeedSync(mn, 'password');
This submodule contains the word lists defined by BIP39 for Czech, English, French, Italian, Japanese, Korean, Simplified and Traditional Chinese, and Spanish. These are not imported by default, as that would increase bundle sizes too much. Instead, you should import and use them explicitly.
function generateMnemonic(wordlist: string[], strength?: number): string;
function mnemonicToEntropy(mnemonic: string, wordlist: string[]): Uint8Array;
function entropyToMnemonic(entropy: Uint8Array, wordlist: string[]): string;
function validateMnemonic(mnemonic: string, wordlist: string[]): boolean;
function mnemonicToSeed(mnemonic: string, passphrase?: string): Promise<Uint8Array>;
function mnemonicToSeedSync(mnemonic: string, passphrase?: string): Uint8Array;
All wordlists:
import { wordlist } from '@scure/bip39/wordlists/czech';
import { wordlist } from '@scure/bip39/wordlists/english';
import { wordlist } from '@scure/bip39/wordlists/french';
import { wordlist } from '@scure/bip39/wordlists/italian';
import { wordlist } from '@scure/bip39/wordlists/japanese';
import { wordlist } from '@scure/bip39/wordlists/korean';
import { wordlist } from '@scure/bip39/wordlists/simplified-chinese';
import { wordlist } from '@scure/bip39/wordlists/spanish';
import { wordlist } from '@scure/bip39/wordlists/traditional-chinese';
License
Copyright (c) 2022 Patricio Palladino, Paul Miller (paulmillr.com)
Using react-native-random-bytes instead of the one provided with the package kinda solves the issue, but that's of course
something I really don't want to do.
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