A Group Authentication Scheme with Privacy-preserving for D2D Communications in 5G HetNets

Abstract

The next-generation mobile communication, which is 5G wireless mobile networks, has become the paradigm to bring not only solutions for the rising demand for huge data traffic, and massively connected devices such as IoT but also new services. One of the promising solutions is that device-to-device communications are expected to play a key role to improve efficiency and have low latency. Most importantly, D2D communications will be the key enabler for group-based services. However, the new case scenarios and new system architecture of 5G Heterogeneous Networks are vulnerable against various attacks since the 5G is still in the early stage. It is utmost important to have a secure and privacy-preserving scheme for D2D communications in 5G HetNets. Even though various research studies have been done by the researchers for D2D communications but many of them fail to address the heterogenous access scenarios, identity protection, and group authentication. In this paper, we propose a certificateless privacy-preserving authentication and key agreement scheme for D2D communications in 5G HetNets using identity-based encryption and elliptic curve digital signature algorithm (ECDSA) to achieve secure and robust communication. The proposed scheme has been analyzed in terms of security and performance. The result of the formal verification using AVISPA and performance analysis shows that the scheme is secure, lightweight and efficient.