Decrypt given data previously encoded with aes192 cipher algo. AES with 192-bit key, a middle-ground between AES-128 and AES-256. Defined in the AES standard as an option alongside AES-128 and AES-256. Secure but not widely used compared to AES-128 and AES-256. 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.