Decrypt given data previously encoded with des3 cipher algo. Triple DES (3DES), using a combination of DES applied three times to provide stronger encryption than DES. Triple DES was introduced as a workaround to DES's short key length. It applies DES three times for added security but remains slower than modern ciphers. While more secure than DES, Triple DES is now considered outdated and is being replaced by AES due to its inefficiency and vulnerability to certain attacks.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.