Device-to-Device (D2D) communication is one of the key components of 4G/5G mobile networks since it enhances network capacity and enables support for public applications. On the other hand, device authentication in D2D is an inherent problem since devices connect and leave the network frequently and freely. Recently, "3rd Generation Partnership Project (3GPP)" has adopted the Authentication Key Agreement (AKA) protocol for 5G New Radio (NR) networks, where the Home Network (HN) first authenticates the User Equipment (UE) and then produces sessions keys. However, in D2D communication, data is directly conveyed between communicating entities (independently from the HN), which makes the AKA protocol not very suited for this technology. In this paper, we propose a new framework based on Physical Layer Security (PLS) that targets device authentication and key establishment in D2D/5G communication systems. The proposed protocol uses common channel characteristics and asymmetric cryptography to ensure legitimate authentication, without relying on the core network. Finally, security and performance analysis are presented to prove the proposed scheme's efficiency and immunity against different types of authentication attacks.
Lightweight and Secure D2D Authentication & Key Management Based on PLS
2019-09-01
388972 byte
Conference paper
Electronic Resource
English
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