This work is motivated by the observation that in DES-like ciphexs it is possible to choose the round functions in such a way that every non-trivial one-round characteristic has sm...
A scheme for ensuring access rights untransferability in a client-serverecenario with a central authority and where servers hold no access information about clients is presented in...
RSA-FDH and many other schemes secure in the Random-Oracle Model (ROM) require a hash function with output size larger than standard sizes. We show that the random-oracle instanti...