Decrypt given data previously encoded with des-ede-ofb cipher algo. Triple DES (DES-EDE) in OFB (Output Feedback) mode, converting the block cipher into a stream cipher with feedback. OFB mode was added to Triple DES for better handling of data streams and is used when error propagation needs to be minimized. Triple DES in OFB mode is more secure than ECB but still suffers from the limitations of Triple DES, which is slower and less secure than newer ciphers. 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.