Title :
Differential-like cryptanalysis of a class of substitution-permutation networks
Author :
Chen, Z.G. ; Youssef, A.M. ; Tavares, S.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada
Abstract :
We introduce a practical differential-like attack on a class of substitution-permutation networks (SPN). Our attack is effective regardless of the key-scheduling algorithm and more efficient than classical differential cryptanalysis. In addition, it is shown that 64-bit SPNs with 8×8 s-boxes are resistant to our attack after 12 rounds
Keywords :
Markov processes; cryptography; Markov model; cryptanalysis; differential-like attack; key-scheduling algorithm; private key cipher; substitution-permutation networks; Cryptography; Electronic mail; Frequency; Predictive models; Upper bound;
Conference_Titel :
Electrical and Computer Engineering, 1998. IEEE Canadian Conference on
Conference_Location :
Waterloo, Ont.
Print_ISBN :
0-7803-4314-X
DOI :
10.1109/CCECE.1998.682777
