Security Attacks, challenges and Mechanisms for security in Wireless Sensor Network: A survey

The main objective of the paper is to discuss about different types of Security attacks and challenges on WSN, we also present the effect of the attack and the defense mechanisms in Wireless sensor networks which are prone to attacks due to its characteristics. Security attacks are identified and classified based on attacker location, based on transmission of information, based on different protocols etc.. and the different security measures that can be applied to defend against different attacks. This survey paper focuses on various aspects of different security attacks, their effects and defense mechanisms corresponding to each attack etc. So this paper helps researchers to have an idea about the security issues, existing attacks and they can also use the ideas and concepts to build more secure wireless sensor network system in future. A direction can be obtained to develop new security mechanisms to protect new possible attacks along with existing ones.