Generate a secret key

import { generateSecretKey } from '@stacks/wallet-sdk';

// Generate a 24-word mnemonic (256 bits of entropy)
const mnemonic24 = generateSecretKey();
// Example: "aunt birth lounge misery utility blind holiday walnut fuel make gift parent gap picnic exact various express sphere family nerve oil drill engage youth"

// Generate a 12-word mnemonic (128 bits of entropy)
const mnemonic12 = generateSecretKey(128);
// Example: "winter crash infant long upset beauty cram tank short remain obtain sauce"

// Different entropy levels
const entropy128 = generateSecretKey(128);  // 12 words - Good security
const entropy256 = generateSecretKey(256);  // 24 words - Excellent security

// Custom entropy (advanced use)
import { mnemonicFromEntropy } from '@stacks/wallet-sdk';
import { randomBytes } from 'crypto';

const customEntropy = randomBytes(32); // 256 bits
const customMnemonic = mnemonicFromEntropy(customEntropy);

import { validateMnemonic } from '@stacks/wallet-sdk';

const userMnemonic = "winter crash infant long upset beauty cram tank short remain obtain sauce";

if (validateMnemonic(userMnemonic)) {
  console.log("Valid mnemonic phrase");
} else {
  console.log("Invalid mnemonic phrase");
}

import { 
  generateSecretKey, 
  generateWallet,
  getStxAddress 
} from '@stacks/wallet-sdk';

async function createNewWallet() {
  // Step 1: Generate mnemonic
  const mnemonic = generateSecretKey(256);
  console.log("Save this mnemonic securely:", mnemonic);
  
  // Step 2: Create wallet from mnemonic
  const wallet = await generateWallet({
    secretKey: mnemonic,
    password: 'wallet-password',
  });
  
  // Step 3: Get first account
  const account = wallet.accounts[0];
  const address = getStxAddress({ account, transactionVersion: 1 });
  
  return {
    mnemonic,
    address,
    publicKey: account.stxPublicKey,
  };
}