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Security Vulnerabilities in Handover Authentication Mechanism of 5G Network

机译：5G网络切换认证机制中的安全漏洞

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摘要

The main objective of the Third Generation Partnership Project (3GPP) is to fulfill the increasing security demands of IoT-based applications with the evolution of Fifth Generation (5G) mobile telecommunication technology. In June 2018, the 3GPP has published the study report of the handover architecture and security functions of in 5G communication network. In this paper, we discuss the 5G handover key mechanism with its key hierarchy. In addition, the inter-gNB handover authentication mechanism in 5G communication network is analyzed and identify the security vulnerabilities such as false base-station attack, de-synchronization attack, key compromise, etc. In addition, the handover mechanism suffers from authentication complexity due to high signaling overhead. To overcome these problems, we recommend some countermeasures as pre-authentication of communication entities, delegation of authentication and pre-distribution of secret keys. This is first work in the 5G handover security analysis. We anticipate that the above security issues and key resilience problem can be avoided from the proposed solutions.
机译：第三代合作伙伴计划（3GPP）的主要目标是履行基于IOT的应用程序的增加，并在第五代（5G）移动电信技术的演变中增加了基于IOT的应用。 2018年6月，3GPP已发表于5G通信网络的切换架构和安全功能的研究报告。在本文中，我们将5G切换密钥机制与其密钥层次结构讨论。此外，分析了5G通信网络中的GNB Inter-GNB切换认证机制，并识别诸如假基站攻击，解除同步攻击，关键折衷等的安全漏洞，此外，切换机制遭受身份验证复杂性高信令开销。为了克服这些问题，我们建议一些对策作为通信实体的预认证，委托认证和秘密密钥预先分配的委托。这是5G切换安全分析中的第一工作。我们预计可以避免提出的解决方案可以避免上述安全问题和关键弹性问题。

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