Evaluation of Authentication and Key Agreement Approaches of 5G Networks

In the ever-evolving landscape of cellular telecommunication systems, the global proliferation of 5G networks has marked a transformative era. The 5G network, distinguished by its high-speed download rates, reduced end-to-end delay, and seamless integration of innovative network solutions, emerges as a pivotal player, particularly for real-time applications such as the IoT. Amidst its myriad advantages, the 5G network is not impervious to security challenges, spanning authentication mechanisms, privacy concerns, and potential cyber threats, encompassing DoS and DDoS attacks, MitM attacks, and eavesdropping. This research manuscript is purposefully crafted to delve into the security intricacies within the 5G system, casting a spotlight on the 5G-AKA protocol employed for mutual authentication between subscribers and the network. While the 5G-AKA protocol lays a foundation for security, the study systematically emphasizes the exigency for enhancements to meet the ever-changing security landscape adequately. The overarching purpose of this paper is to offer a comprehensive exploration of the security vulnerabilities and potential threats in 5G networks, with a laser focus on specific vulnerabilities including DoS/DDoS, Jamming, MitM, spoofing, and eavesdropping attacks. The research methodology is robust, featuring an exhaustive survey of related works, synthesizing insights from diverse studies, and critically evaluating proposed solutions. Evaluation criteria are meticulously crafted, considering performance metrics and resistance factors such as the cryptosystem employed, resistance to Signalling, Replay, Redirection, Impersonation attacks, and more. Security properties, spanning confidentiality, integrity, protection, KFS/KBS, optimized handover, etc., are scrutinized. Additionally, the study investigates the array of testing and simulation tools, such as AVISPA, Matlab, Scyther, and BAN Logic, strategically utilized in the research. The results gleaned from this comprehensive inquiry underscore the pivotal role played by the 5G-AKA protocol in securing the network through mutual authentication and key agreement. Beyond identification, the study delineates security vulnerabilities, magnifying the indispensable need for robust security mechanisms and protocols. This holds particular significance in the context of IoT devices and applications. Addressing these vulnerabilities emerges as a linchpin for preserving network integrity and ensuring the delivery of high-quality services for IoT applications. Notably, the manuscript concludes by highlighting the ongoing initiatives in developing and implementing robust security methodologies and protocols, underlining their indispensability for the success and widespread adoption of the 5G network. In essence, this survey paper serves as an invitation to scholars for further academic exploration into the critical realm of 5G security, encapsulating purpose, scope, method, and results within its comprehensive purview.