نتایج جستجو برای: cryptanalysis
تعداد نتایج: 12443 فیلتر نتایج به سال:
We introduce tuple cryptanalysis, a variant of structural cryptanalysis techniques as square, saturation, integral, internal collision, or multiset cryptanalysis, the main difference being that tuple cryptanalysis considers ordered rather than unordered multisets. This allows cryptanalysts to better trace structural properties within a cipher’s internal state. Unlike previous works that focus o...
In [12], T. Matsumoto and H. Imai designed an asymmetric cryptosystem, called C∗, for authentication, encryption and signature. This C∗ scheme was broken in [13] due to unexpected algebraic properties. In this paper, we study some new “candidate” asymmetric cryptosystems based on the idea of hiding one or two rounds of small S-box computations with secret functions of degree one or two. The pub...
we give a survey of recent applications of group rings to combinatorics and tocryptography, including their use in the di erential cryptanalysis of block ciphers.
In this letter, we study the marginal density of the XOR distribution table, and the linear approximation table entries of regular substitution boxes (s-boxes). Based on this, we show that the fraction of good s-boxes (with regard to immunity against linear and differential cryptanalysis) increases dramatically with the number of input variables. Introduction Differential cryptanalysis [1], and...
This report presents a response to the call for candidates issued by the National Institute for Standards and Technologies (the Advanced Encryption Standard project). The proposed candidate | called DFC as for \Decorrelated Fast Cipher" | is based on Vaudenay's decor-relation technique. This provides provable security against several classes of attacks which include the basic version of Biham a...
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