CAREER: Building Secure Wireless Communication Systems via Physical Layer Resources

职业：通过物理层资源构建安全的无线通信系统

• 批准号: 1760889
• 负责人: Lifeng Lai
• 金额: $ 3.78万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2018-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1760889&HistoricalAwards=false
• 关键词: CAREER; Building; Secure; Wireless; Communication

Due to the open nature of wireless communications, it is important to provide a comprehensive security solution to protect information exchanged over the wireless medium. Two approaches have been adopted in the existing studies. In the first approach, physical layer properties of wireless channels are exploited to achieve provably secure information transmission. However, the study of practical models that involve active attackers and dishonest legitimate users has been limited. In the second approach, cryptographic schemes that can deal with general practical models are adopted. However, these schemes ignore the physical properties of wireless channels and rely on unproved intractability assumptions. It is critical to create synergies between these two approaches and design secure wireless systems that can deal with general scenarios while providing analytical security guarantees.This project aims to systematically exploit wireless channel physical layer resources to design secure wireless systems that provide provable confidentiality, integrity and privacy. Two main thrusts are investigated in this project. In the first thrust, a layered design approach, which uses physical layer resources to generate information theoretically secure keys needed for upper layer security primitives, is developed. In the second thrust, a cross-layer design approach that explicitly exploits physical layer resources in the design of upper layer security primitives is studied. This approach involves the development of novel performance metrics that have elements from both information theory and cryptography and the design of schemes under these new metrics. The research is fully integrated with three phases of engineering education: a) outreach to high school students; b) project- and research-oriented undergraduate student education; and c) graduate students training through new course development, mentoring and industry collaboration.

由于无线通信的开放性，提供全面的安全解决方案来保护通过无线介质交换的信息非常重要。现有研究采用了两种方法。在第一种方法中，利用无线信道的物理层属性来实现可证明安全的信息传输。然而，对涉及主动攻击者和不诚实合法用户的实际模型的研究仍然有限。在第二种方法中，采用可以处理一般实用模型的密码方案。然而，这些方案忽略了无线信道的物理特性，并依赖于未经证实的棘手假设。在这两种方法之间建立协同作用并设计能够处理一般场景同时提供分析安全保证的安全无线系统至关重要。该项目旨在系统地利用无线信道物理层资源来设计安全无线系统，提供可证明的机密性、完整性和安全性。隐私。该项目研究了两个主要目标。在第一个推力中，开发了一种分层设计方法，该方法使用物理层资源来生成上层安全原语所需的理论上安全的密钥。在第二个主旨中，研究了一种跨层设计方法，该方法在上层安全原语的设计中显式地利用物理层资源。这种方法涉及开发具有信息论和密码学元素的新颖性能指标，以及在这些新指标下的方案设计。该研究与工程教育的三个阶段完全结合：a）向高中生推广； b) 以项目和研究为导向的本科生教育； c) 通过新课程开发、指导和行业合作对研究生进行培训。