const crypto = require('crypto');

// Data to authenticate
const data = 'Node.js Crypto HMAC Example';

// Secret key
const secretKey = 'my-secret-key';

// Function to create HMAC with different algorithms
function createHmacWithAlgorithm(algorithm, data, key) {
  const hmac = crypto.createHmac(algorithm, key);
  hmac.update(data);
  return hmac.digest('hex');
}

// Test various HMAC algorithms
const algorithms = ['md5', 'sha1', 'sha256', 'sha512', 'sha3-256', 'sha3-512'];

console.log(`Data: "${data}"`);
console.log(`Secret Key: "${secretKey}"`);
console.log('------------------------------------');

algorithms.forEach(algorithm => {
  try {
    const digest = createHmacWithAlgorithm(algorithm, data, secretKey);
    console.log(`HMAC-${algorithm}: ${digest}`);
    console.log(`Length: ${digest.length / 2} bytes (${digest.length * 4} bits)`);
    console.log('------------------------------------');
  } catch (error) {
    console.log(`HMAC-${algorithm}: Not supported - ${error.message}`);
    console.log('------------------------------------');
  }
});