منابع مشابه
Algebraic Cryptanalysis of Simplified AES
Simplified AES was developed in 2003 as a teaching tool to help students understand AES. It was designed so that the two primary attacks on symmetric-key block ciphers of that time, differential cryptanalysis and linear cryptanalysis, are not trivial on simplified AES. Algebraic cryptanalysis is a technique that uses modern equation solvers to attack cryptographic algorithms. There have been so...
متن کاملAlgebraic Cryptanalysis of Aes: an Overview
In this paper, we examine algebraic attacks on the Advanced Encryption Standard (AES, also known as Rijndael). We begin with a brief review of the history of AES, followed by a description of the AES algorithm. We then discuss the problem of solving systems of multivariate quadratic equations over arbitrary fields (the MQ problem), as well as some recent general methods for solving it, namely r...
متن کاملA Simplified Representation of AES
We show that the so-called super S-box representation of AES – that provides a simplified view of two consecutive AES rounds – can be further simplified. In the untwisted representation of AES presented here, two consecutive AES rounds are viewed as the composition of a non-linear transformation S and an affine transformation R that respectively operate on the four 32-bit columns and on the fou...
متن کاملImpossible Differential Cryptanalysis of Mini-AES
Impossible differential cryptanalysis is one of the cryptanalysis methods that are applicable to the new Advanced Encryption Standard (AES). In this paper, we present an introduction to the method by applying it on Mini-AES, the mini version of the AES published in Cryptologia recently.
متن کاملAlgebraic Cryptanalysis of Sms4
The SMS4 block cipher is part of the Chinese WAPI wireless standard. It is a 32-round block cipher with 128-bit blocks and 128-bit keys. This paper explores algebraic attacks on SMS4 using Gröbner basis attacks on equation systems over GF(2) and GF(28), as well as attacks using a SAT solver derived from the GF(2) model.
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ژورنال
عنوان ژورنال: Cryptologia
سال: 2009
ISSN: 0161-1194,1558-1586
DOI: 10.1080/01611190903185328