Security Frameworks for Wireless Sensor Networks-Review

Due to significant advances in miniaturization, low power circuit design but reasonably efficient to carry the sensitive information through wireless communication, wireless sensor network (WSN) have attracted attention a lot in recent years. WSN's are being used in many applications like health monitoring, military purposes, and home automation. Since WSN suffer from many constraints including lower processing power, low battery life, small memory and wireless communication channel, security becomes the main concern to deal with such kind of networks. Due to these well accepted limitations, WSN is not able to deal with traditional cryptographic algorithms. This paper gives an overview of cryptographic frameworks designed so far and also a comparison of existing schemes is tabled