CIF: Small: Collaborative Research: Realizing the Vision of Information-Theoretic Security for Wireless Communications

通过无线媒体传输的大量敏感数据使得无线通信安全成为至关重要的问题。无线网络安全的标准实施解决方案基于模块化方法，其中传输和加密分别执行。因此，最先进的加密算法与底层网络的特性无关，但这种分离方法越来越难以证明其合理性，因为无线网络上的快速可靠通信需要更有效的安全体系结构。过去几年，从信息理论中获得了几个理论见解，这些见解表明，通过从一开始就对可靠性和安全性进行联合设计，可以从根本上确保无线干扰网络中的传输安全。这个项目采取了一种独特的方法来加速无线网络的信息理论安全设计的部署，通过分析具有现实假设的模型，开发实用的编码方案，并通过无线试验台进行验证。该项目研究了两项相互交织的研究任务：(I)克服建模假设，通过提供安全保证而不考虑对手的信道，对能够操纵信道条件以利于他们的对手进行建模和对抗，并在实现中消除理想化的假设；(Ii)提供确保强保密性的显式信道代码设计，并为多终端无线网络开发安全代码。与该项目有关的其他活动包括：(I)向计算安全界推广信息理论和计算安全原则的融合；(Ii)以各种形式传播研究成果；(Iii)佐治亚理工学院和宾夕法尼亚州立大学之间的研究交流方案；(Iv)由私人投资机构联合教授研究生课程，纳入该项目的研究成果；以及(V)为工程和科学领域的妇女招聘和指导。本项目的研究将促进信息理论安全原则在无线系统中的实施，并在物理层产生新的具有成本效益的安全技术。

A significant amount of sensitive data communicated over wireless media makes wireless communication security an issue of paramount importance. The standard implemented solution to security over wireless networks is based on a modular approach in which transmission and encryption are carried out separately. State-of-the-art encryption algorithms are thus agnostic to the characteristics of the underlying network, but this separation approach is increasingly hard to justify as fast and reliable communications over wireless networks require more effective security architectures. Several theoretical insights have been obtained from information theory in the past few years that suggest that fundamentally secure transmission in wireless interference networks is possible by jointly designing for reliability and security at the outset. This project takes a distinctive approach to accelerate the deployment of information-theoretically secure design of wireless networks by analyzing models with realistic assumptions, developing practical coding schemes and validating with a wireless test-bed. The project investigates two intertwined research tasks: (i) overcoming modeling assumptions, by providing security guarantees irrespective of adversaries' channels, modeling and countering adversaries that can manipulate channel conditions to their advantage, and removing idealized assumptions in implementation; (ii) providing explicit channel code designs that ensure strong secrecy and developing secure codes for multi-terminal wireless networks. Additional activities related to the project include : (i) outreach to the computational security community towards integration of information-theoretic and computational security principles; (ii) dissemination of research results in various forms; (iii) a research exchange program between Georgia Tech and Penn State; (iv) a jointly taught graduate level course by the PIs that incorporates the research results of this project; and (v) recruitment of and mentorship for women in engineering and science. The research conducted in this project will facilitate the implementation of information-theoretic security principles on wireless systems and lead to novel cost-effective security techniques at the physical-layer.