针对LTE⁃Unlicensed与WiFi跨技术通信的攻击  

Attacks Towards the Cross⁃Technology Communication Between LTE⁃Unlicensed and WiFi

作　　者：刘子威 林峰[1,2] 任奎 LIU Ziwei;LIN Feng;REN Kui(Institute of Cyberspace Reseach,Zhejiang University,Hangzhou 310027,China;Key Laboratory of Blockchain and Cyberspace Governance of Zhejiang Province,Hangzhou 310027,China)

机构地区：[1]浙江大学网络空间安全研究中心,浙江杭州310027 [2]浙江省区块链与网络空间治理重点实验室,浙江杭州310027

出　　处：《无线电通信技术》2021年第4期449-458,共10页Radio Communications Technology

基　　金：国家重点研发计划(2020AAA0107700);国家自然科学基金项目(62032021,61772236,61972348);浙江省重点研发计划项目(2019C03133);浙江省引进培育领军型创新创业团队(2018R01005);阿里巴巴-浙江大学前沿技术联合研究中心;网络空间国际治理研究基地。

摘　　要：跨技术通信(Cross⁃technology Communication,CTC)是近年来兴起的实现异质设备之间通信的新技术。前期的工作主要关注协议与性能,而对它的安全性缺乏足够的研究。基于此问题,提出了针对LTE⁃Unlicensed与WiFi之间CTC的干扰攻击以及相应的防御措施。首先利用通用软件无线电和商用无线路由器实现了LTE⁃Unlicensed到WiFi的CTC的软硬件系统平台,并基于WiFi的FFT数据汇报功能提出并验证了多种低成本、隐蔽的干扰攻击方案。实验结果表示所提的攻击方案是有效的,其中反应型干扰能显著降低CTC 73.4%的包传输率。Cross⁃technology communication(CTC)is an emerging technology for the communication between heterogeneous devices in recent years.The previous work mainly focused on the protocol and performance of CTC,but lacked research on its security.This paper presents the jamming attack towards the CTC between LTE⁃Unlicensed and WiFi and corresponding countermeasures.To ver⁃ify potential attacks,we first implemented CTC hardware and software integrated platform between LTE⁃Unlicensed and WiFi using soft⁃ware defined radios and commercial wireless routers.Then,we proposed and verified a variety of low⁃cost,stealthy jamming attack schemes based on WiFi′s FFT data reporting function.Experimental results show that attack schemes proposed in this paper are effec⁃tive,in which reactive jamming can significantly reduce CTC packet delivery ratio of 73.4%.

关 键 词：非授权频段的LTE 跨技术通信 信号干扰 隐蔽攻击 

分 类 号：TN914[电子电信—通信与信息系统]