We describe two different attacks against the iso/iec 9796-1 signature standard for RSA and Rabin. Both attacks consist in an existential forgery under a chosen-message attack: the...
We present the first signature scheme which is “short”, stateless and secure under the RSA assumption in the standard model. Prior short, standard model signatures in the RSA...
Clinical studies are often conducted as multi-centered studies involving participants at different locations. Thus it becomes obvious that using mobile platforms and remote data e...
Abstract. Performance evaluation of the Advanced Encryption Standard candidates has led to intensive study of both hardware and software implementations. However, although plentifu...
Administration of large-scale RBAC systems is a challenging open problem. We propose a principled approach in designing and analyzing administrative models for RBAC. We identify s...