Decrypt given data previously encoded with aes-192-ocb cipher algo. AES with 192-bit key in Offset Codebook (OCB) mode, which offers authenticated encryption with minimal overhead. A patented encryption mode designed for efficiency and parallelism. Secure but less commonly used due to patent restrictions, which limited its adoption. 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.