Superficial Discussion of the DES Algorithm
Tan Xin-liang · Journal of Yiyang Teachers College · 2001
The DES algorithm,ie,Data Encryption Standard algorithm.The algorithm begins with an initial permutation,then after 16 substitution-permutation rounds,it finishes with an inverse initial permutation.When we consider the questions about the security of the DES,the design of the algorithm,number of iterations and key length all should be attached importance.The DES has weaknesses that concerns complements and choice of keys,so do in design.