Detection Mechanism of Blackhole Nodes Based on Attack Features in DTN
Qu Wang · Jisuanji gongcheng · 2014
The nodes in the delay tolerant networks rely on the cooperation among nodes to forward the messages to destinations. How to effectively enhance the cooperation among nodes in Delay Tolerant Network(DTN)is a challenge,and the Blackhole attack is a typical incorporation behavior. In order to detect and restrain the Blackhole attack,a Blackhole nodes detection mechanism based on attack features is proposed,which extracts three essential features of the Blackhole attack:the forged high relay capacity,the imbalance of the number of messages forwarded between nodes and high message loss rate. The mechanism exploits the local vote and the cooperative detection among nodes to determine the probability that a node is a blackhole node. Simulations results show that the blackhole nodes detection mechanism based on attack features named AFD-Prophet can improve the delivery rate while not increasing the delivery delay in comparison with the reputation-based detection protocol T-Prophet.