D2D通信安全与隐私保护研究

D2D通信作为一项新兴无线通信技术在下一代移动通信中受到广泛关注，但其安全性尚未得到充分研究。本项目针对D2D通信在多个场景下的安全通信和隐私保护需求，凝练出D2D群组通信安全环境构建和用户隐私保护、D2D中继通信安全环境构建和用户隐私保护、D2D通信安全切换三个科学问题；针对这三个科学问题，本项目拟从隐私保护D2D群组通信安全、隐私保护D2D中继通信安全、隐私保护D2D安全切换展开研究，分别设计基于数字签名和群组密钥协商的匿名群组通信安全协议，实现隐私保护的D2D群组安全通信；设计基于群签名和密钥交换算法的D2D中继通信安全协议，实现隐私保护的D2D安全中继通信；设计基于群组认证方案的D2D安全切换协议，为D2D通信提供安全且隐私保护的切换服务。本项目的成果将为D2D通信的安全和隐私保护提供重要的理论基础与技术支持，促进D2D通信在下一代移动通信中的安全应用。

D2D (Device-to-Device) communication, as a promising wireless communication technology in Next Generation Wireless Networks (NGWN), has received widespread attentions recently. However, the security issues in D2D communication remain underappreciated. According to the security and privacy preservation requirements of D2D communications under diversified communication scenarios, this project concludes the following three scientific problems: secure communication in D2D group communication with privacy preservation, secure communication in D2D relay communication with privacy preservation and secure handover in D2D communications. Based on these three scientific problems, this project intends to research on the following three aspects: security and privacy preservation of D2D group communication, D2D relay communication and handover in D2D communication. The project builds the following three schemes: a signature and group key agreement-based authentication and key agreement (AKA) protocol for D2D group communication to guarantee the establishment of group session with privacy preservation, a group signature and Diffie-Hellman key exchange-based AKA protocol for D2D relay communications and a group-based authentication protocol for user handover in D2D communications. The research achievements of the project will provide important theoretical bases and technology supports for security and privacy preservation mechanism for D2D user in diverse scenarios and promote the development of D2D communication in NGWN.