In undeniable signature schemes, zero-knowledgeness and non-transferability have been identified so far. In this paper, by separating these two notions, we show the first 3-move ...
McEliece cryptosystem is a public-key cryptosystem based on error-correcting codes. It constitutes one of the few alternatives to cryptosystems relying on number theory. We present...
The University of Calgary is attacking the problems of spam and spyware from the angle of education. "Spam and Spyware" is a computer science course offered at both the ...
We propose a general framework for differential and linear cryptanalysis of block ciphers when the block is not a bitstring. We prove piling-up lemmas for the generalized different...
Tseng et al. have introduced in 2003 an authenticated encryption scheme by using self-certified public keys. Based on this scheme several authors have proposed new signature schem...