Bayesian System for Differential Cryptanalysis of DES
نویسندگان
چکیده
منابع مشابه
Algebraic-Differential Cryptanalysis of DES
Algebraic cryptanalysis is as a general framework that permits to assess the security of a wide range of cryptographic schemes. However, the feasibility of algebraic cryptanalysis against block ciphers remains the source of speculation and especially in targeting modern block ciphers. The main problem is that the size of the corresponding algebraic system is so huge (thousand of variables and e...
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The key schedule of the Data Encryption Standard is analyzed, and it is shown that the properties of the permuted choice PC-2 transformation and the number of bits that are left shifted during the key generation are critical for the security of the algorithm. More precisely, we were able to mount a low complexity related-key attack on DES with slightly modified key schedule although no related-...
متن کاملDifferential Cryptanalysis of the Full 16-Round DES
In this paper we develop the first known attack which is capable of breaking the full 16 round DES in less than the complexity of exhaustive search. The da ta analysis phase computes the key by analyzing about 2% ciphertexts in 237 time. The 2% usable ciphertexts are obtained during the data collection phase from a larger pool of 247 chosen plaintexts by a simple bit repetition criteria which d...
متن کاملDifferential Cryptanalysis of the full 16-round DES
of n, if p > 2 ?40:2 then the number of analyzed plaintexts is two and the complexity of the data analysis phase is 2 32. However, using about four times as many chosen plaintexts, we can use the clique algorithm (described in 1]) and reduce the time complexity of the data analysis phase to less than a second on a personal computer. The known plaintext attacks need about 2 32 p ?0:5 known plain...
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The main goal of this diploma work is the implementation of Matsui’s linear cryptanalysis of DES and a statistical and theoretical analysis of its complexity and success probability. In order to achieve this goal, we implement first a very fast DES routine on the Intel Pentium III MMX architecture which is fully optimised for linear cryptanalysis. New implementation concepts are applied, result...
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ژورنال
عنوان ژورنال: IERI Procedia
سال: 2014
ISSN: 2212-6678
DOI: 10.1016/j.ieri.2014.08.004