This paper explores practical and conceptual implications of using Server-Aided Signatures (SAS). SAS is a signature method that relies on partially-trusted servers for generating...
Abstract. McEliece is one of the oldest known public key cryptosystems. Though it was less widely studied than RSA, it is remarkable that all known attacks are still exponential. I...
Nicolas Courtois, Matthieu Finiasz, Nicolas Sendri...
We undertook a project to secure the distribution of medical information using Wax. This is a proprietary hypertext-based system used for information such as treatment protocols, d...
In order to achieve a high performance in a real implementation of the non-repudiation service it is necessary to estimate timeouts, TTP features, publication key time, number of o...
Classic security systems use a trust model centered in the authentication procedure, which depends on a naming service. Even when using a Public Key Infrastructure as X.509, such s...
Altair Olivo Santin, Joni da Silva Fraga, Carlos M...