Security in collaborative peer groups is an active research topic. Most previous work focused on key management without addressing an important pre-requisite: admission control, i...
Most people consider frequent software updates a nuisance. However, we show how this common phenomenon can be turned into a feature that protects against software piracy. We defin...
Security is a fundamental precondition for the acceptance of mobile agent systems. In this paper we discuss protocols to improve agent security by distributing critical data and op...
Mobile agents are programs that can migrate from machine to machine in a heterogeneous, partially disconnected network. As mobile agents move across a network, they consume resour...
In this paper, we propose a new approach for constructing selectively convertible undeniable signature schemes, and present two efficient schemes based on RSA. Our approach allows ...