›› 2003, Vol. 20 ›› Issue (1): 31-38.DOI: 10.7523/j.issn.2095-6134.2003.1.005
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Zhang Ruwen
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Abstract:
Proposes a method for seeking the upper bounds of maximum linear bias for these ciphers. This technique consists of two steps. Firstly, we give the mathematical relationship between linear bias of ciphers and linear bias of round function F and S box respectively by carrying out strictly mathematical expression of linear bias for ciphers. Next we determine the upper bounds of linear bias for ciphers. Using this method we give the upper bounds of linear bias within 32 rounds.
Key words: linear cryptanalysis, linear bias expression, ciphers, S-box
CLC Number:
TP309
Zhang Ruwen. Linear Cryptanalysis for a Class of Generalized Feistel Ciphers[J]. , 2003, 20(1): 31-38.
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URL: http://journal.ucas.ac.cn/EN/10.7523/j.issn.2095-6134.2003.1.005
http://journal.ucas.ac.cn/EN/Y2003/V20/I1/31
[1] 吴文玲,贺也平.一类广义Feistel密码的安全性评估.电子与信息学报,2002,24(9):1177~1184[2] C Adams. CAST-256. http://nist.gov/aes[3] M Matsui. Linear cryptanalysis method for DES ciper. In:Advances in Cryptology-Eurocrypt'93, LNCS 765. Springer-Verlag,1993. 386~397
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