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. In this paper we investigate a new way for protecting block ciphers against classes of attacks (including differential and linear cryptanalysis) which is based on the notion of decorrelation distanc...
Blowfish is a sixteen-rounds Feistel cipher in which the F function is a part of the private key. In this paper, we show that the disclosure of F allows to perform a differential cryptanalysis which c...
We explain how to forge public parameters for the Digital Signature Standard with two known messages which always produce the same set of valid signatures (what we call a collision). This attack is th...
We explain how to forge public parameters for the Digital Signature Standard with two known messages which always produce the same set of valid signatures (what we call a collision). This attack is th...
We explain how to forge public parameters for the Digital Signature Standard with two known messages which always produce the same set of valid signatures (what we call a collision). This attack is th...
We explain how to forge public parameters for the Digital Signature Standard with two known messages which always produce the same set of valid signatures (what we call a collision). This attack is th...
Linear cryptanalysis and differential cryptanalysis are the most important methods of attack against block ciphers. Their efficiency have been demonstrated against several ciphers, including the Data ...