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Improvements for Finding Impossible Differentials of Block Cipher Structures
block cipher cryptanalysis impossible differential
2017/12/19
In this paper we improve Wu and Wang's method for finding impossible differentials of block cipher structures. This improvement is more general than Wu and Wang's method that it can find more impossib...
Security Evaluation against Differential Cryptanalysis for Block Cipher Structures
block cipher structures active S-boxes integer programming differential cryptanalysis
2012/3/23
Estimating immunity against differential and linear cryptanalysis is essential in designing secure block ciphers. A practical measure to achieve it is to find the minimal number of active S-boxes, or ...
Unified Impossible Differential Cryptanalysis on Block Cipher Structures
Differential Cryptanalysis Block Cipher Structures
2009/12/29
In this paper, we propose a systematic search method for finding the impossible differential characteristic
for block cipher structures, better than the U-method introduced by Kim et al [6]. This met...
Impossible Boomerang Attack for Block Cipher Structures
Block Ciphers Impossible Boomerang Attack Impossible Boomerang Distinguishers
2009/10/9
Impossible boomerang attack [5] (IBA) is a new variant of di erential cryptanalysis
against block ciphers. Evident from its name, it combines the ideas of both impossible di erential cryptanalysis an...