A reputation-based method against combinations of internal attacks in WSNs

The security problems of wireless sensor networks (WSNs) have already arisen and taken an important role in recent years among the international research community. Among all the safety threatens, a series of harmful attacks against WSNs is known as internal attacks, where the adversary captures sensor node and turns it into malicious node. Furthermore, it is still not easy to detect all these attacks, especially when internal attacks try to combine with each other. This paper presents a reputation-based method aimed to defend against the combination of internal attacks, like on-off attack, camouflage attack and constant attack. In the end, simulation shows that the practicability of the method and proves that the method enhances the reliability and security of networks.