Irrational Numbers Based on DES Encryption Algorithm
Guo‐Ping Jiang · Journal of Nanjing University of Posts and Telecommunications · 2009
DES and AES method for data encryption are discussed in this paper,and the analysis of security is also given,then an improved scheme based on irrational numbers is proposed.The encryption algorithm,which takes advantage of pseudo-chaos characteristics of irrational numbers,can expand key space,enhance the randomness of sub-keys and use different sub-keys in each group of 16 rounds.Therefore,the proposed scheme can obtain the same key space with AES algorithm by spending the same running time with DES algorithm.