Novel Protection from Internal Attacks in Wireless Sensor Networks

Due to wireless sensor networks are easy and rapid deployed, low cost, low power, self-organized, cooperatively collect the environmental information and realize the integration of the physical world and communication network, they become part of our daily life. However, security threats to WSNs become increasingly diversified and preventions are getting harder and harder due to the open nature of the wireless medium. For example, an adversary can easily eavesdrop and replay or inject fabricated messages. Different cryptographic methods are very limited. This is because of internal attack, such as node compromise, becomes another major problem that is different from traditional WSN security problem as it allows an adversary to enter inside the security perimeter of the network. This situation raised a serious challenge for the security of WSNs. In this paper we are investigating internal attacks of wireless sensor networks, with an example of multi-hop and a single sinker, by which we present our novel algorithm with controllable robust protecting from internal attacks of a wireless sensor network. The final experimental works showed that the proposed algorithm does work well at the designed level.