Decrypt given data previously encoded with des-ede3-cfb1 cipher algo. Triple DES (DES-EDE3) in CFB1 mode, where only one bit of feedback is used to encrypt data one bit at a time. CFB1 mode was developed to handle fine-grained encryption of small data units while using Triple DES for enhanced security. Triple DES in CFB1 mode is more secure than single DES but still considered outdated due to its slow performance and vulnerability to modern attacks. 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.