Recent Survey on Security in Wireless Sensor Network

A Wireless Sensor Network (WSN) is a prominent technology where a huge number of wireless sensors are deployed to observe the changes of environmental conditions. Due to their vast area of applications they are nowadays attracting a lot of interest in wireless and mobile computing research community. Wireless Sensor Networks are the most challenging and emerging technology for the research due to their essential reach in the field linked with their low processing power and associated low energy. However, due to their wireless medium which is broadcast in nature, these networks are unprotected to number of security threats that can badly affect their performance. This problem will more and more dangerous upon the introduction of some mission-critical applications. Due to the unfriendly nature of their deployment environments, the wireless medium and the constrained nature of resources on tiny sensor devices used in such networks, security produces more series challenges compared to the traditional networks. Security is therefore important and challenging task in WSNs. This paper consider major features of security in wireless sensor networks and some existing security attacks.