Device-to-Device (D2D) communications play a key role in the next generation mobile communication networks and wireless systems (5G) and the Internet of Things ecosystem. D2D group communications are significant for group based services. In spite of its benefits, new application scenarios and new system architecture expose the D2D group communications to unique security threats. Although there are numerous studies on security and privacy in two-user D2D communications, a lack of solutions on secure and privacy-preserving D2D group communications would restrict their wide usage. In this paper, we propose two privacy-preserving authentication and key Agreement protocols (PPAKA-HAMC and PPAKA-IBS) to guarantee secure and anonymous D2D group communications. In our protocols, a group of D2D users mutually authenticate with each other without leaking their identity information while negotiate a common D2D group session key for secure communications in a D2D session. Formal security analysis and comprehensive performance evaluation show security and effectivity of our protocols.

中文翻译：

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D2D 群组通信的隐私保护身份验证和密钥协商协议


设备到设备（D2D）通信在下一代移动通信网络和无线系统（5G）以及物联网生态系统中发挥着关键作用。 D2D 群组通信对于基于群组的服务非常重要。尽管有其好处，但新的应用场景和新的系统架构使D2D群组通信面临独特的安全威胁。尽管关于双用户 D2D 通信的安全性和隐私性的研究很多，但缺乏安全和保护隐私的 D2D 群组通信的解决方案将限制其广泛使用。在本文中，我们提出了两种隐私保护身份验证和密钥协商协议（PPAKA-HAMC 和 PPAKA-IBS）来保证安全和匿名的 D2D 组通信。在我们的协议中，一组 D2D 用户在不泄露其身份信息的情况下相互进行身份验证，同时协商通用的 D2D 组会话密钥以在 D2D 会话中进行安全通信。正式的安全分析和综合性能评估表明了我们协议的安全性和有效性。