SNPDAC: Secure Network Protocol with Data Access Controlling in WSN

secure communication refers to exchange of information in encrypted form, so that adversary or unauthorized party could not access the sensitive information. In Wireless Sensor Networks (WSN) due to resource limitations security and privacy becomes very key issue as each of sensor nodes collects sensitive information and transmit over the network. Since Sensor networks does not support the traditional security mechanisms we have concentrated on data access control more precisely in order to avoid data leakage or unauthorized party. Here we are discussing the issue of data access control in WSN with help of Key-lock match method to prevent unauthorized access to data reports. Along with the real time implementation we are detecting replay attack considering some traditional cryptographic methods. Results show that we achieve higher security than the existing methods.