Abstract. We present the first implementation of a theorem prover running on a smart card. The prover is written in Java and implements a dual tableau calculus. Due to the limited ...
In trust negotiation and other distributed proving systems, networked entities cooperate to form proofs that are justified by collections of certified attributes. These attributes...
In the setting of concurrent self composition, a single protocol is executed many times concurrently by a single set of parties. In this paper, we prove lower bounds and impossibi...
Online trading invariably involves dealings between strangers, so it is important for one party to be able to judge objectively the trustworthiness of the other. In such a setting,...
Several credential systems have been proposed in which users can authenticate to service providers anonymously. Since anonymity can give users the license to misbehave, some varia...
Patrick P. Tsang, Man Ho Au, Apu Kapadia, Sean W. ...