International Journal of Computer Applications
Wireless Sensor Networks (WSN) are a heterogeneous system with a collection of sensors distributed unbalanced patterns in remote areas, and often in unfriendly environments, without any pre-deployed architecture, and with limited hardware inside them. As the use of wireless sensor networks continuously growing, it should require efficient security mechanisms. Therefore to ensure the security of communication and data access control in WSN plays a vital role and has top significance. Because sensor networks may interact with sensitive data and operate in hostile unattended environments, it is necessary that these security issues should be addressed from the beginning of design of the system itself.