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

大量的敏感数据通过无线介质进行通信，这使得无线通信安全成为一个至关重要的问题。无线网络安全的标准实现解决方案基于模块化方法，其中传输和加密分别执行。因此，最先进的加密算法对底层网络的特性是不可知的，但是这种分离方法越来越难以证明是合理的，因为通过无线网络进行快速可靠的通信需要更有效的安全架构。在过去的几年中，已经从信息理论中获得了一些理论见解，这些理论见解表明，通过在一开始就联合设计可靠性和安全性，在无线干扰网络中从根本上安全传输是可能的。该项目采用独特的方法，通过分析具有现实假设的模型，开发实用的编码方案并使用无线测试台进行验证，来加速无线网络信息理论安全设计的部署。该项目调查了两个相互交织的研究任务：（i）克服建模假设，通过提供安全保证，而不管对手的信道，建模和对抗对手，可以操纵信道条件，以他们的优势，并消除理想化的假设在实施中;（ii）提供明确的信道代码设计，确保强保密性和开发安全代码的多终端无线网络。与该项目有关的其他活动包括：（一）向计算安全社区推广信息理论和计算安全原则的整合;（二）以各种形式传播研究成果;（三）格鲁吉亚理工学院和宾夕法尼亚州立大学之间的研究交流计划;（四）由PI联合教授的研究生课程，其中包括该项目的研究成果;以及（v）招聘和指导工程和科学领域的妇女。在这个项目中进行的研究将促进信息理论的安全原则在无线系统中的实施，并导致新的成本效益的安全技术在物理层。

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.