A Novel Protection for Wireless Sensor Networks from Internal Attacks

Abstract—Wireless sensor networks (WSNs) are becoming part of our daily life as they are widely used due to they 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. However, due to their open nature of the wireless medium an adversary can easily eavesdrop and replay or inject fabricated messages. Different cryptographic methods can be used to defend against some of such attacks. But for node compromised those methods can do little, which is another major problem of WSN security as it allows an adversary to enter inside the security perimeter of the network, which raised a serious challenge for WSNs. This paper is focusing on investigating internal attacks of wireless sensor networks with multi-hop and single sinker. Our novel algorithm, called 2 by 2 (2x2) method, enable to effectively protect WSN from internal attacks such as blackhole, Sybil attacks, node replication, etc