… to the study of linear relationships in symmetric block ciphers. A block cipher is designed so
… However, linear relationships within the cipher can still exist if the texts and components of …

… linear structures in “DES-like ciphers” which we also prove. … are blockciphers composed of
“simple” blockciphers (“rounds”). In 54 we explain how linear structures of product ciphers can …

… , it is shown how to break block ciphers operating on GF(q) where … how to discover more
general non-linear relations p(x, y) = 0 … As a demonstration, we break up to 10 rounds of a cipher …

… art of secret key block ciphers. We focus on the main application of block ciphers, namely
for encryption. The most important known attacks on block ciphers are linear cryptanalysis and …

… in the iterative ciphers with weak and strong linear transformations. The results allow
establishing independence of cipher durability to attack of linear and differential cryptanalysis from …

… Before studying the correlation of linear hulls over block ciphers… are often encountered as
parts of block ciphers, namely the XOR-… for block ciphers based on zero-correlation linear hulls. …

… linear components can be constructed efficiently from Maximum-Distance Separable codes.
The presented block cipher … In this paper we only consider block ciphers where n = n . The …

… One objective of the linear hull search was to double check if the linear relations we
derived in (1), (5) and (6) actually had the predicted biases (which have been confirmed). An …

… block mini-version of SAFER a 4.75-round relation with bias ϵ = 2−16 has been identified.
These linear relations … -homomorphic linear relations, more rounds of the SAFER block cipher …

… statistical attacks on block cipher and discuss their relations. Sect. … Linear cryptanalysis [12]
uses a linear relation between bits from … The strength of the linear relation is measured by its …