SHA256 Cannot read properties of undefined

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Hello @JesterOC

You’re correct - Backendless does not provide a built-in Backendless.CryptoUtils or Backendless.Crypto object for cryptographic operations in custom code blocks (Cloud Code, API Services, or Event Handlers). That’s why you’re seeing the Cannot read properties of undefined (reading ‘SHA256’) error.

  1. Try to use JavaScript Crypto API:

Documentation:

async function generateLicenseKey(cleanEmail, secret) {
  const encoder = new TextEncoder();
  const data = encoder.encode(cleanEmail + secret);
  
  const hashBuffer = await crypto.subtle.digest('SHA-256', data);
  const hashArray = Array.from(new Uint8Array(hashBuffer));
  const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
  
  const license = hashHex.substring(0, 20).toUpperCase();
  return license;
}

const license = await generateLicenseKey(cleanEmail, secret);
  1. Node.js crypto:

Documentation:

const crypto = require('crypto');

function generateLicenseKey(cleanEmail, secret) {
  const raw = cleanEmail + secret;
  const hash = crypto.createHash('sha256').update(raw).digest('hex');
  const license = hash.substring(0, 20).toUpperCase();
  return license;
}

Useful link:
Encrypting data

Regards,
Volodymyr