Optimization of the High Nonlinear S-Boxes Generation Method
نویسندگان
چکیده
منابع مشابه
A Method For Generation Of High-Nonlinear S-Boxes Based On Gradient Descent
Criteria based on the analysis of the properties of vectorial Boolean functions for selection of substitutions (S-boxes) for symmetric cryptographic primitives are given. We propose an improved gradient descent method for increasing performance of nonlinear vectorial Boolean functions generation with optimal cryptographic properties. Substitutions are generated by proposed method for the most c...
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Substitution boxes are important parts in many block and stream ciphers. The emergence of a range of crypto-attacks has led to the development of criteria for repelling such attacks. The non-linearity criterion provides some protection against wellknown attacks, such as linear cryptanalysis and differential cryptanalysis. The open problem is constructed by generating methods which will be rapid...
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A. M. Youssef and S. E. Tavares Department Of Electrical and Computer Engineering Queen’s University Kingston, Ontario, Canada, K7L 3N6 Phone : (613) 545–2945 Fax : (613) 545–6615 email : [email protected] Indexing terms: Cryptography, Private-key cryptosystems, Substitution boxes, Combinatorics. Abstract Nonlinearity is a crucial requirement for the substitution boxes in secure block ciphe...
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15 صفحه اولPerfect nonlinear S-boxes on the real-line
The objective of this contribution is to introduce an analogue to the classical secret-key block ciphers, such as DES, IDEA or AES, in the nondenumerable setting, namely where cleartexts, plaintexts and keys are real numbers. The nonlinear part of traditional secret-key block ciphers, the S-boxes, is designed to provide confusion i.e. to resist to several kind of cryptanalysis such as algebraic...
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ژورنال
عنوان ژورنال: Tatra Mountains Mathematical Publications
سال: 2017
ISSN: 1210-3195
DOI: 10.1515/tmmp-2017-0020