Substitution-permutation networks resistant to differential and linear cryptanalysis
In this paper we examine a class of product ciphers referred to as substitution-permutation networks. We investigate the resistance of these cryptographic networks to two important attacks: differential cryptanalysis and linear cryptanalysis. In ...
Differential cryptanalysis of Lucifer
Differential cryptanalysis was introduced as an approach to analyze the security of DES-like cryptosystems. The first example of a DES-like cryptosystem was Lucifer, the direct predecessor of DES, which is still believed by many people to be much more ...
On-line/off-line digital signatures
A new type of signature scheme is proposed. It consists of two phases. The first phase is performed off-line, before the message to be signed is even known. The second phase is performed on-line, once the message to be signed is known, and is supposed ...
