Decrypt given data previously encoded with 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 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.