Most ad hoc networks do not implement any network access control, leaving these networks vulnerable to resource consumption attacks where a malicious node injects packets into the...
A (t, n) threshold signature scheme allows t or more group members to generate signatures on behalf of a group with n members, while any t−1 or less members cannot do the same th...
Abstract. We present a new cryptographic auction protocol that prevents extraction of bid information despite any collusion of participants. This requirement is stronger than commo...
The ElGamal encryption scheme has been proposed several years ago and is one of the few probabilistic encryption schemes. However, its security has never been concretely proven bas...
This material was presented in a series of lectures at fosad, a summer school on Foundations of Security Analysis and Design, at the University of Bologna Center at Bertinoro in Se...