CAREER: Private Communication in Strongly Adversarial Networks

沟通和随时获取信息的能力有助于实现积极的社会和政治变革。互联网对发展中国家的教育、经济和政府机构的影响已经被社会科学家和技术专家很好地研究过。然而，不幸的是，在许多情况下，不民主的政府监控和审查互联网通信，试图控制其人口。虽然有一些现有的技术，支持私人通信的存在下，一个受限制的对手谁控制的网络只有一小部分，并具有有限的资源，我们目前缺乏解决方案，使匿名通信时，网络完全控制的民族国家的对手。这项研究开发的方法，提供未经过滤，匿名，和高性能的互联网访问，即使是在强大的民族国家对手面前。该项目（i）研究使用新型隐藏通道改善严格监管网络连通性的方法，（ii）提高匿名网络对拒绝服务攻击的弹性，（iii）介绍检测匿名网络中可疑行为的技术，和（四）通过开发新的匿名协议和算法，实现高性能的匿名消息传递。该项目的隐私和安全主题包括：已被纳入安全课程开发乔治敦的新成立的博士。程序.更广泛地说，该项目通过提高私人访问信息的能力，使社会受益，即使是在压迫政府控制的网络中。该项目将增加目前通信能力低下的群体的参与，并将为无法自由通信的地区提供不受限制的互联网接入。

The ability to communicate and readily access information helps make possible positive social and political change. The Internet's effects on developing nations' educational, economic, and governmental institutions have been well explored by social scientists and technical experts. However, in unfortunately many instances, undemocratic governments monitor and censor Internet communication to attempt to control their populations. Although there are a number of existing technologies that support private communication in the presence of a restricted adversary who controls only a fraction of the network and has limited resources, we currently lack solutions that enable anonymous communication when the network is fully controlled by a nation-state adversary.This research develops methods of providing unfiltered, anonymous, and high performance Internet access, even in the presence of strong nation-state adversaries. The project (i) investigates methods of improving connectivity in heavily regulated networks using novel hidden channels, (ii) improves the resilience of anonymity networks to denial-of-service attacks, (iii) introduces techniques for detecting suspicious behavior in anonymity networks, and (iv) enables high performance anonymous messaging through the development of novel anonymity protocols and algorithms.The project's themes of privacy and security have been integrated into security courses developed for Georgetown's newly established Ph.D. program. More broadly, the project benefits society by improving the ability to privately access information, even in networks controlled by oppressive governments. The project will increase the participation of groups whose ability to communicate is currently muted, and will provide unfettered Internet access to regions in which free communication would otherwise be unavailable.