Results 71 to 80 of about 721 (175)
Algebraic Techniques in Linear Cryptanalysis
Proceedings of the 2012 2nd International Conference on Computer and Information Applications (ICCIA 2012), 2012 Linear cryptanalysis is a statistical analysis method. Linear cryptanalysis constructs probabilistic patterns first and then distinguishes the cipher from a random permutation using lots of plaintext-ciphertext pairs. Linear cryptanalysis has a big data complexity. Algebraic attack attempts to exploit the algebraic structure of the cipher by expressing
Hong Ru Wei, Ya Fei Zheng
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Security against differential and linear cryptanalysis for general SPT models
Tongxin xuebao, 2012 To use SP network in stream ciphers safely and efficiently,the ability against differential and linear cryptanalysis of SPT models was studied,where S and T denote different layers for substitution,in which compression could be achieved,and P denotes the
Feng-mei LIU +4 more
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Improved Slender-Set Linear Cryptanalysis [PDF]
, 2015 In 2013, Borghoff et al. introduced a slender-set linear cryptanalysis on PRESENT-like ciphers with key-dependent secret S-boxes. In this paper, we propose an improved slender-set linear attack to PRESENT-like ciphers with secret S-boxes. We investigate three new cryptanalytic techniques, and use them to recover the secret S-boxes efficiently.
Guo-Qiang Liu, Chen-Hui Jin, Chuan-Da Qi
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Differential-Linear Cryptanalysis of Serpent [PDF]
, 2003 Serpent is a 128-bit SP-Network block cipher consisting of 32 rounds with variable key length (up to 256 bits long). It was selected as one of the 5 AES finalists. The best known attack so far is a linear attack on an 11-round reduced variant.
Eli Biham, Orr Dunkelman, Nathan Keller
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On a Linear Cryptanalysis of a Family of Modified DES Ciphers with Even Weight S-Boxes
Cybernetics and Information Technologies, 2016 We investigate the effect of inserting extra linearity in the Data Encryption Standard (DES) through appropriate nonsingular linear encodings of the output of the individual S-boxes.
Borissov Yuri +2 more
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Revisiting the shuffle of generalized Feistel structure
CybersecurityThe Generalized Feistel Structure ( $$\texttt{GFS}$$ GFS ) is one of the most widely used frameworks in symmetric cipher design. In FES 2010, Suzaki and Minematsu strengthened the cryptanalysis security of $$\texttt{GFS}$$ GFS by searching for shuffles ...
Yincen Chen +4 more
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Probability distributions of correlation and differentials in block ciphers
Journal of Mathematical Cryptology, 2007 We study the probability distributions of difference propagation probabilities and input-output correlations for functions and block ciphers of given dimensions, for several of them for the first time.
Daemen Joan, Rijmen Vincent
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Differential-Linear Cryptanalysis of Reduced Round ChaCha
IACR Transactions on Symmetric CryptologyChaCha is a well-known stream cipher that has been used in many network protocols and software. In this paper, we study the security of reduced round ChaCha. First, by considering the differential-linear hull effect, we improve the correlation of a four-
Zhichao Xu, Hong Xu, Lin Tan, Wenfeng Qi
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New Linear Trails and Linear Hulls of CHAM
IEEE AccessCHAM is a family of lightweight block ciphers with block sizes of 64 bits and 128 bits. CHAM performs very well in lightweight environments and is known to be one of the block ciphers that can be implemented with the smallest hardware area. In this paper,
Dongyoung Roh
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Linear cryptanalysis of stream ciphers [PDF]
, 1995 Starting from recent results on a linear statistical weakness of keystream generators and on linear correlation properties of combiners with memory, linear cryptanalysis of stream ciphers based on the linear sequential circuit approximation of finite-state machines is introduced as a general method for assessing the strength of stream ciphers.
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