The algorithm as a standard
On 26 May 2002, DES was finally superseded by the Advanced Encryption Standard (AES), following a public competition. On 19 May 2005, FIPS 46-3 was officially withdrawn, but NIST has approved Triple DES through the year 2030 for sensitive government information.
What algorithm does DES use?
DES is based on the Feistel block cipher, called LUCIFER, developed in 1971 by IBM cryptography researcher Horst Feistel. DES uses 16 rounds of the Feistel structure, using a different key for each round.
Which encryption key is used for DES algorithm?
The DES algorithm uses a 56-bit key, and as expected from something with such a small key size, it is a symmetric key encryption algorithm—asymmetric keys are usually more than a thousand bits in length.
