From the May/June 2013 issue

To Lie or to Comply: Defending against Flood Attacks in Disruption Tolerant Networks

By Qinghua Li, Wei Gao, Sencun Zhu, Guohong Cao

Disruption Tolerant Networks (DTNs) utilize the mobility of nodes and the opportunistic contacts among nodes for data communications. Due to the limitation in network resources such as contact opportunity and buffer space, DTNs are vulnerable to flood attacks in which attackers send as many packets or packet replicas as possible to the network, in order to deplete or overuse the limited network resources. In this paper, we employ rate limiting to defend against flood attacks in DTNs, such that each node has a limit over the number of packets that it can generate in each time interval and a limit over the number of replicas that it can generate for each packet. We propose a distributed scheme to detect if a node has violated its rate limits.

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Editorials and Announcements

Announcements

• Print on Demand is Now Available for OnlinePlus Titles
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Call for Papers

• Special Issue on "Security and Privacy in Mobile Platforms"
  Submission Deadline: July 30, 2013
• Open call for papers for TDSC

Editorials

• Editorial by Ravi Sandhu (January/February 2012)
• Editorial by Ravi Sandhu (July-Sept 2010)
• Editorial by Ravi Sandhu (Jan-March 2010)

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