Differential Cryptanalysis of Snefru, Khafre, REDOC-II, LOKI and Lucifer

In [1,2] we introduced the notion of differential cryptanalysis based an chosen plaintext attacks. In [3,4] we described the application of differential cryptanalysis to Feal[13,12] and extended the method to known plaintext attacks. In this paper we apply differential cryptanalytic methods to the hash function Snefru[10] and to the cryptosystems Khafre[11], REDOC-II[6,7], LOKI[5] and Lucifer[8].