Alternatives of DES

Question

Write down the Alternatives of DES.

Answer 1

Over the years, many new block cipher algorithms have been intended as alternatives to DES. One is FEAL, the cipher for which several attacks have been found out. IDEA is a cipher designed through Massey and Lai that seems much more promising as well as two more recent designs is SAFER and RC5. Additionally, the U.S. government announced in the year of1993 the algorithm called Skipjack as part of its Capstone project. Skipjack operates onto 64-bit blocks of data, as does DES, however uses 80-bit keys, as opposed to 56-bit keys in DES. But, the details of Skipjack are categorized, so Skipjack is only accessible in hardware from government-endorsed manufacturers.