International Journal of Computer Applications Technology and Research
Wireless sensor networks gains its importance because of the critical applications in which it is involved like industrial automation, healthcare applications, military and surveillance. Among security attacks in wireless sensor networks the authors consider an active attack, node replication attack and colluding attack. They use localized algorithms, ((i.e.) replication detection is done at the node level and eliminated without the intervention of the base station) to solve replication attacks and colluding attacks. Replication attacks are detected to using a unique key pair and cryptographic hash function.