Decrypt given data previously encoded with aes-192-ccm cipher algo. AES-192 in Counter with CBC-MAC mode. Provides authenticated encryption with a 192-bit key. Secure as long as a unique nonce is used. 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.