Data Encryption Standard -- DES
Data Encry...
> >DES is a symmetrical encryption algorithm. The origins of DES go back to the early 1970s. DES Challenge III was a joint effort between distributed.net and Deep Crack. The key was found in just 22 hours 15 minutes in January 1999. DES is not secure due to its shorter key length, making it vulnerable to brute-force attacks. It was replaced by Advanced Encryption Standard (AES).
DES is a block cipher. It encrypts data in blocks of size 64 bits each.
The same algorithm and key are used for encryption and decryption, with minor differences.
64-bit key is required but the actual key length is only 56 bits. All least-significant-bits of each byte are discarded.