Key management for a large-scale wireless sensor network

In this paper, we focus on the key management issue in a large-scale wireless sensor network (WSN). Employing an end-to-end data security method and a distributed key revocation, a key management protocol is designed accordingly. The performance analysis shows that our proposed protocol outperforms LEDS [15] in terms of efficiency of resilience. By the analysis of key storage overheads, we demonstrate that this overhead of our proposed protocol is fewer than that of [18].