Performance Evaluation of Trust Management in Pervasive Computing

In pervasive computing, interactions are possible among users, devices and applications anytime and anywhere. Security and privacy are critical issues in this environment because pervasive computing environments´ decentralized and distributed nature means that classical, centralized security management mechanisms are not directly applicable. Pervasive computing´s similarity to human society makes trust an effective solution to handle security and privacy problems in pervasive computing environments In this paper we present a specific framework for implementing the distributed trust scheme based on our previous work. This work is inspired by a study on security and privacy requirements in a pervasive computing environment´s actual applications. We have evaluated the performance using simulation experiments with performance metrics of throughput, packet loss ratio and message overhead. The results demonstrate the proposed approach´s usefulness.