Secure Group Communication in Wireless Sensor Networks: A survey
Wireless Sensor Networks (WSN) consist of a large number of sensor nodes which are often deployed in an unattended harsh environment. As they are exposed to a wide range of attacks, sensor based applications have then to be secured. In this paper, we presented an updated survey of different Secure Group Communication (SGC) schemes in WSN. We examined both components of the existing SGC schemes namely the group key management and the group membership management, and discussed their performance and security. We also classified existing schemes to three different approaches: centralized, contributory, and hybrid. Additionally, we provided recommendations on which scheme to use for specific WSN constraints and specific application requirements. Finally, we pointed out the challenges that researchers have to address while giving them directions to potential solutions. 2015 Published by Elsevier Ltd. 67 68 69
J. Netw. Comput. Appl.