Create & Generate Mnemonic using BIP39
The following example shows how to create and generate mnemonics using BIP39.
const { mnemonicGenerate, mnemonicToSeed, mnemonicValidate, naclKeypairFromSeed } = require('@polkadot/util-crypto');
async function main () {
// Create mnemonic string for Alice using BIP39
const mnemonicAlice = mnemonicGenerate();
console.log(`Generated mnemonic: ${mnemonicAlice}`);
// Validate the mnemic string that was generated
const isValidMnemonic = mnemonicValidate(mnemonicAlice);
console.log(`isValidMnemonic: ${isValidMnemonic}`);
// Create valid seed from mnemonic as u8a and convert it to a string
// FIXME - Replace with mnemonicToSeed once exposed
const seedAlice = mnemonicToSeed(mnemonicAlice);
// Generate new public/secret keypair for Alice from the supplied seed
const { secretKey, publicKey } = naclKeypairFromSeed(seedAlice);
// Encrypt, Sign and Validate the message. See Example 'Sign & Verify Message'
}
main().catch(console.error).finally(_ => process.exit());