Encrypt given data using des-ede3-cfb cipher algo. Triple DES (DES-EDE3) in CFB (Cipher Feedback) mode, encrypting data in smaller units by feeding back ciphertext into the encryption process. CFB mode is used to convert block ciphers into stream ciphers, with Triple DES (EDE3) providing the underlying encryption. Triple DES (EDE3) with CFB is more secure than DES alone but still has performance and security issues due to the algorithm's age. Our encryption process prepends the IV string used during the encryption process in the encrypted data so that it can be used during decryption.