研究目的

This paper designed and analyzed two secure group key establishment mechanisms for multicasting in WSNs in the context of IoT applications. The key derivations also implicitly authenticate group members, whereas the key can be further used for securing multicast messages.

研究成果

The paper concludes that the two secure group key establishment mechanisms for multicasting in WSNs in the context of IoT applications are efficient and secure. Protocol 2 always outperforms protocol 1 in terms of energy consumption. Protocol 1 is more appropriate for distributed IoT applications, which require group members to highly contribute to the key computation and need greater randomness. Protocol 2 is more suitable for centralized IoT applications, where mostly cryptographic operations are performed by a central entity and edge nodes have very low energy profiles.

研究不足

The paper does not consider the sleeping patterns of the nodes and path losses in the communication links since they are out of the scope of the key objective of this paper. Therefore, it is assumed that the members of the multicast group will eventually receive the initiator requests and the rest of the messages without failures.