Collaborative Research: SaTC: CORE: Small: Understanding the Limitations of Wireless Network Security Designs Leveraging Wireless Properties: New Threats and Defenses in Practice

今天的许多无线设备都以小规模、低成本的设计为特色，以符合物联网系统和应用的要求。因此，这些设备中的许多不能执行密码操作或需要避免这样的操作以保存能量(例如，植入式医疗设备)。然而，这些设备通常处理敏感数据。一个重要的研究方向是通过利用无线网络中独特的无线信道属性，同时考虑正式的对手模型，来创建高效、轻量级但又安全的此类设备设计。在这个项目中，通过对手驱动的方法来解决这一挑战，以提高无线网络的安全性。该项目的创新之处在于：(I)利用无线信道特性创建更强大、更实用的对手模型，以了解当今物联网系统安全设计的局限性；(Ii)设计新的防御策略，以进一步推进最先进的无线网络安全设计。该项目的广泛意义和重要性正在推动网络安全领域的最新进展，包括本科生培训机会、公开分发培训材料和开展外联活动。该项目针对现有研究中的三个设计方面创建了新的对手驱动方法：(I)利用信道状态信息作为唯一的网络配置文件；(Ii)从无线信道建立秘密；(Iii)使用无线信道隐藏秘密。具体地说，该项目包括基于系统设计和实际评估的三个研究推力：(I)创建针对基于信道状态信息的用户或位置分析/验证的新攻击，并设计网络对策；(Ii)建立新的对手模型和设计无线密钥建立框架；(Iii)提出新的对手驱动的无线信道安全信息交换框架。该项目涉及基于真实世界无线实验的全面评估，以验证和改进建议的设计。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

Many of today's wireless devices feature small-scale, low-cost designs to align with the requirements of Internet of Things systems and applications. Thus, many of these devices cannot perform cryptographic operations or need to avoid such operations to preserve energy (e.g., implantable medical devices). However, these devices commonly handle sensitive data. An important research direction is to create efficient, lightweight yet secure designs of such devices by leveraging unique wireless channel properties in wireless networks while considering formal adversary models. In this project, this challenge is tackled via an adversary-driven approach to improve wireless network security. The project's novelties are: (i) creating stronger, practical adversary models to understand the limitations of today's security designs of IoT systems leveraging the wireless channel properties and (ii) designing new defense strategies to further advance the state-of-the-art wireless network security designs. The project's broader significance and importance are advancing the state-of-the-art in network security, including undergraduate student training opportunities, openly disseminated training materials, and conducting outreach activities.This project creates new adversary-driven approaches targeting the three design aspects in existing studies: (i) leveraging the channel state information as a unique network profile, (ii) establishing a secret from the wireless channel, and (iii) hiding a secret using the wireless channel. Specifically, the project encompasses three research thrusts based on both system designs and practical evaluations: (i) creating new attacks against channel state information-based user or location profiling/verification and designing network countermeasures; (ii) formulating new adversary models and designing frameworks for wireless secret key establishment, and (iii) proposing new adversary-driven secure information exchange frameworks using the wireless channel. The project involves comprehensive evaluations based on real-world wireless experiments to validate and improve the proposed designs.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.