Date Added: Oct 2010
Delay Tolerant Networks (DTNs) have been identified as one of the key areas in the field of wireless communications. They are characterized by large end-to-end communication latency and the lack of end-to-end path from a source to its destination. These characteristics pose several challenges to the security of DTNs. Especially, Byzantine attacks give serious damages to the network in terms of latency and data availability. Using reputation-based trust management systems is shown to be an effective way to handle the adversarial behavior in Mobile Ad-Hoc NETworks (MANETs). However, because of the unique characteristics of DTNs, the techniques to build a trust mechanism for MANETs do not apply to DTNs.