Decrypt given data previously encoded with aes-256-ccm cipher algo. AES with 256-bit key in Counter with CBC-MAC (CCM) mode, which combines CTR mode encryption with CBC-MAC authentication. Developed for resource-constrained environments, commonly used in wireless security protocols like WPA2. Secure when used correctly, but requires careful nonce management to avoid vulnerabilities. Our decryption process assumes the IV string is prepended in the encoded string during the encryption process. You can not decrypt and get the correct results if the IV or passphrase mismatch occurs between encryption and decryption process.