An Access Control Protocol for Wireless Sensor Network Using Double Trapdoor Chameleon Hash Function

Wireless sensor network (wsn),a type of communication system,is normally deployed into the unattended environment where the intended user can get access to the network. the sensor nodes collect data from this environment. if the data are valuable and confidential,then security measures are needed to protect them from the unauthorized access. this situation requires an access control protocol (acp) in the design of sensor network because of sensor nodes which are vulnerable to various malicious attacks during the authentication and key establishment and the new node addition phase. in this paper,we propose a secured acp for such wsn. this protocol is based on elliptic curve discrete log problem (ecdlp) and double trapdoor chameleon hash function which secures the wsn from malicious attacks such as node masquerading attack,replay attack,man-in-the-middle attack,and forgery attacks. proposed acp has a special feature known as session key security. also,the proposed acp is more efficient as it requires only one modular multiplication during the initialization phase. � 2016 tejeshwari thakur.