Hybrid key management scheme for preventing man-in-middle attack in heterogeneous sensor networks
Yong Chun Xu, Fen Liu · 2017
With the development of Internet of things technology which considerably contributed to the research of heterogeneous sensor networks (HWSNs), the design of key management schemes and protocols is one of the most important aspects of HWSNs research. Besides, the key management in HWSNs meets many new challenges due to its intrinsic properties. In this paper, a hybrid key management scheme (NHKM) based on ECC and symmetric cryptosystem, achieving authentication of the node's public key by using certificates and nonce signature, can well prevent man-in-middle (MIM) attack. The simulation results show the overall effectiveness of the NHKM scheme, revealing better performance in terms of network connectivity, resource cost, scalability and resilience.