基于数据云处理的物理特征安全验证系统  

Physical Feature Security Verification System Based on Data Processing in the Cloud

作　　者：刘雍煌 宋欢欢 郁子阳[1,2,3] 李闻 文红 LIU Yonghuang;SONG Huanhuan;YU Ziyang;LI Wen;WEN Hong(School of Aeronautics and Astronautics,UESTC,Chengdu Sichuan 611731,China;Aircraft Swarm Intelligent Sensing and Cooperative Control Key Lab.of Sichuan Province,UESTC,Chengdu Sichuan 611731,China;Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province,UESTC,Chengdu Sichuan 611731,China)

机构地区：[1]电子科技大学航空航天学院,四川成都611731 [2]电子科技大学飞行器集群智能感知与协同控制四川省重点实验室,四川成都611731 [3]电子科技大学四川省智慧物联通信技术工程研究中心,四川成都611731

出　　处：《通信技术》2023年第7期876-881,共6页Communications Technology

基　　金：四川省自然科学基金(2022NSFSC0946)。

摘　　要：与传统加密技术相比,物理层安全技术利用信道噪声实现与明文等长的密钥加密效果,窃听者即使拥有强大的破解计算能力,在没有主信道信息的前提下依然无法破译保密数据,在未来的通信系统中极有可能实现“一次一密”,为无线通信系统提供了强有力的安全保障。提出了基于数据云处理的物理特征安全验证系统,基站和合法用户可以高效获取信道信息,窃听者可凭借云服务器强大的存储及计算资源不限时地进行保密信号破译。基于此系统,设计并验证了联合预编码及人工噪声的物理层安全方案,填补了该方案原型机验证平台的空白,为验证物理层安全技术的无条件安全特性提供了有力支撑。Compared with conventional encryption techniques,physical layer security technology achieves encryption with a key of the same length as the plaintext by utilizing channel noise.Even if eavesdroppers possess powerful decryption capabilities,they cannot decipher confidential data without the main channel information.In future communication systems,it is highly likely to achieve“one-time pad”and provide strong security guarantees for wireless communication systems.This paper proposes a physical feature authentication system based on cloud data processing.The base station and legitimate users can efficiently obtain channel information,while eavesdroppers can use the powerful storage and computing resources of cloud servers to decrypt secret signals at any time.Based on this system,this paper designs and verifies a physical layer security scheme based on joint precoding and artificial noise,which fills the gap in the prototype verification platform of this scheme and provides strong support for verifying the unconditional security features of physical layer security technology.

关 键 词：物理层安全 软件无线电 预编码 人工噪声 误比特率 

分 类 号：TN918[电子电信—通信与信息系统]