EAGER: Securing Wireless Network Coding against Pollution Attack at the Physical Layer

目的：本方案的目的是解决无线网络编码系统中攻击者和通信者之间的根本不平衡，方法是：(1)在物理层检测错误注入的数据包；(2)从被污染的数据包中分离并移除错误注入的数据包，以提取（恢复）真实编码的数据包。因此，该程序提供了两个变革性的观点：(1)利用在检测错误注入的数据包中免费提供的物理信号；(2)回收而不是丢弃被污染的数据包，从而大大提高了频谱效率。智力优势：本研究的智力优势在于从新的角度（信号处理）解决了当前网络编码技术面临的安全问题。该方法的新颖之处在于将传统上单独研究的通信和安全方面整合在一起。研究了安全性、速率和可靠性之间的基本权衡，为网络编码系统设计中集成通信和安全问题提供了理论基础。更广泛的影响：该项目的更广泛的影响是：(1)通过为当地高中学生制定实验示范计划，扩大少数民族和妇女对工程专业的参与；(2)对新兴的安全嵌入式/传感器/特设网络产生影响，这些网络将适用于广泛的应用，包括监视和安全、健康和环境监测、公共安全和应急响应。

Objective: The objective of this program is to address the fundamental imbalance between the attacker and the communicator in wireless network coding system by (1) detecting the falsely injected packet at the physical layer; and (2) separating and removing only the falsely injected packet from the polluted packet to extract (restore) the true coded packet. The program thus provides two transformative perspectives: (1) exploiting the physical signals that are available for free in detecting the falsely injected packet; and (2) recycling the polluted packet instead of discarding it, thereby dramatically improving the spectrum efficiency.Intellectual merit:The intellectual merit of this research lies in the new perspective (signal processing) in addressing the security problem facing current network coding technology. The novelty of the proposed approach is the integration of communication and security aspects, which traditionally have been studied separately. The fundamental tradeoff among the security, rate, and reliability is investigated to develop a theoretical foundation for integrating communication and security issues in network coding systems design. Broader Impacts:The broader impacts of this project are: (1) broadening the participation of minority and women in engineering programs by developing an experimental demonstration program for local high school students; (2) impacting on emerging secure embedded/sensor/ad-hoc networks that will be applicable to a wide range of applications, including surveillance and security, health and environmental monitoring, and public safety and emergency response.