import hashlib import hmac

# Combine the user ID, license key, and machine ID into a single string machine_id = "" # This would need to be obtained from the machine combined_string = f"{user_id}{license_key}{machine_id}"

NI7-REGISTER- CODE- GENERATOR- STRING- HMAC

# Check if the registration code has the correct format if len(parts) != 4 or parts[0] != "NI7": return False

# Generate an HMAC signature using SHA-256 signature = hmac.new(license_key.encode(), combined_string.encode(), hashlib.sha256).hexdigest()