AAKA-D2D: Anonymous Authentication and Key Agreement Protocol in D2D Communications

Abstract

Device-to-Device (D2D) communication is proposed as a promising technology in 5G system for communications between mobile devices geographical proximity. Despite significant benefits, new application scenarios and system architecture, for instance, open direct channel, expose D2D communications to unique security threats. Providing a secure and privacy-preserving D2D communication system is essential for the success of D2D services. In this paper, we propose AAKA-D2D, an anonymous authentication and key agreement secure protocol for D2D communications, by which two User Equipments (UE) in close proximity could mutually authenticate without leaking their real identities and negotiate a session key for secure communications in D2D session without disclosing communication contents to Core Network (CN). Formal security analysis indicates that AAKA-D2D satisfies the security requirements. The comprehensive performance evaluation show that AAKA-D2D can increase the computational performance by about 20% and decrease on communication overhead by half compared to related works. © 2019 IEEE.