Encrypt given data using aes-192-cfb8 cipher algo. AES with 192-bit key in CFB mode with a feedback size of 8 bits, enabling byte-oriented encryption. A variant of AES-CFB optimized for environments needing byte-level encryption. More secure than CFB1 but still not as widely adopted as other AES modes. Our encryption process prepends the IV string used during the encryption process in the encrypted data so that it can be used during decryption.