NeTS: Medium: Collaborative Research: Secure Networking Using Network Coding

该奖项是根据2009年美国恢复和再投资法案(公法111-5)资助的。该项目从网络编码的角度确定网络保密性的基本限制，然后应用该理论来改善对等网络和无线网络的安全保障。随着网络编码作为有线和无线网络的一项重要策略日益突出，该项目确定了使用网络编码的优势和弱点。随后，该工作开发了一种设计方法，该方法既利用优势，又仔细弥补漏洞。该项目分析了外部和内部攻击下的网络。具体地说，编码机制是为了对抗外部窃听者而开发的。此外，密码学和信息论工具的组合被用来对抗对网络的内部修改攻击。这些结果被用于两个案例研究：对无线Mesh网络的窃听者攻击和对P2P内容分发系统的污染攻击。安全的网络编码系统，一旦被很好地理解，可以极大地影响网络的设计和部署。几乎每个网络设置(无线、有线或异类)都可以在其设计中提高弹性(以及吞吐量等其他性能优势)方面受益。这项工作中的案例研究旨在帮助将开发的理论原理转化为实际算法。研究团队包括一名行业成员，该成员将帮助我们将研究想法从理论转化为实践。该小组将通过传统的学术场所、网络和每个伙伴机构的当地社区传播其研究结果。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This project determines the fundamental limits of network secrecy from a network coding perspective, and then applies this theory to improve security guarantees in peer-to-peer and wireless networks. As network coding gains prominence as an important strategy for both wired and wireless networks, the project identifies both the advantages and vulnerabilities from using network coding. Subsequently, the effort develops a design methodology that exploits the advantages while carefully compensating for the vulnerabilities.This project analyzes networks under both outsider and insider attacks. Specifically, coding mechanisms are developed to combat an external eavesdropper. Also, a combination of cryptographic and information-theoretic tools are used to combat internal modification attacks on the network. The results are then used in two case studies: eavesdropper attacks on wireless mesh networks and pollution attacks on P2P content distribution systems.Secure network coded systems, once well understood, can greatly impact how networks are designed and deployed. Nearly every network setting (wireless, wired or heterogeneous) can benefit in terms of improved resilience (in addition to other performance benefits such as throughput) in its design. Case studies in this effort are designed to help transition the theoretical principles developed into practical algorithms.The research team includes an industry member which will aid in transitioning our research ideas from theory to practice. The team will disseminate its findings through traditional scholarly venues, through the web and to the local community at each partner institution.