Linear cryptanalysis method for DES cipher
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
ICICS '99 Proceedings of the Second International Conference on Information and Communication Security
A New Version of the Stream Cipher SNOW
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
Linear Cryptanalysis Using Multiple Approximations
CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on Advances in Cryptology
Multidimensional Linear Cryptanalysis of Reduced Round Serpent
ACISP '08 Proceedings of the 13th Australasian conference on Information Security and Privacy
Multidimensional Extension of Matsui's Algorithm 2
Fast Software Encryption
INDOCRYPT'05 Proceedings of the 6th international conference on Cryptology in India
Improved linear distinguishers for SNOW 2.0
FSE'06 Proceedings of the 13th international conference on Fast Software Encryption
The Independence of Linear Approximations in Symmetric Cryptanalysis
IEEE Transactions on Information Theory
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Linear cryptanalysis and linear approximation methods in general are among the most important cryptanalysis methods of symmetric ciphers and their components. Recently, these methods have been extended to efficiently exploit multiple linear approximations simultaneously. It is known that high nonlinearity of Boolean functions and S-boxes is a desirable property and that the bent functions offer the strongest resistance against cryptanalysis using single linear approximations. The goal of this paper is to investigate to which extent resistance against the multidimensional extension of the linear cryptanalysis method can be achieved. For this purpose some common highly nonlinear Boolean functions as well as a basic LFSR based key stream generator using a nonlinear filter function are investigated.