CSR: Small: Towards Blocking Resistant Network Services

CSR：小：迈向抗阻塞网络服务

• 批准号: 1420703
• 负责人: Arvind Krishnamurthy
• 金额: $ 46.14万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-10-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1420703&HistoricalAwards=false
• 关键词: CSR; Small; Towards; Blocking; Resistant

Unfettered digital communication, as provided by the Internet, has fundamentally changed the world in countless ways. Businesses, organizations, and citizens have benefited from the Internet's global reach. However, the Internet was not designed to be resilient to censorship, and governments have restricted communication to advance their social and economic agendas. Worse, network equipment providers have shown a willingness to commoditize and profit from censorship by selling interception and filtering devices. The desire for uncensored access to the Internet has motivated the development of techniques such as one-hop proxies and anonymizing networks, but existing techniques have multiple limitations, ranging from low performance and intermittent availability to reduced levels of security and application flexibility. This project will develop and deploy a censorship resistant peer-to-peer system that overcomes the limitations of existing systems and provides unrestricted access to popular web sites and Internet services. The advent of social networks provides researchers with an opportunity to take a fresh look at peer-to-peer systems for censorship resistance. The focus of this project is to use social trust relations as a foundation for achieving highly secure and blocking resistant overlays for supporting network services, while also approaching the ease of use, performance, and reliability typically associated with direct communications. Specifically, the system will use social overlays wherein participants form a peer-to-peer overlay network bootstrapped based on real-world trust relationships. Participants of the social overlay would be able to directly communicate and share content, without having to expose their actions and without being blocked. A key design choice is also to develop the system to operate completely within a web browser, leveraging newly developed technologies that provide support for peer-to-peer communications inside the browser. Browser-based end-user solutions are easily deployable without requiring significant infrastructural costs. There are several key, interrelated challenges that the system will overcome. Principal among these are: performance, flexibility, trustworthiness, and robustness.

互联网提供的不受限制的数字通信以无数方式从根本上改变了世界。企业、组织和公民都从互联网的全球影响力中受益。 然而，互联网的设计并不能抵御审查制度，而且各国政府也限制通信以推进其社会和经济议程。更糟糕的是，网络设备提供商已经表现出愿意通过销售拦截和过滤设备进行商品化并从审查制度中获利。 对不受审查的互联网访问的渴望推动了单跳代理和匿名网络等技术的发展，但现有技术具有多种局限性，从性能低下和间歇性可用性到安全性和应用程序灵活性水平降低。 该项目将开发和部署一个抗审查的点对点系统，该系统克服现有系统的局限性，并提供对流行网站和互联网服务的无限制访问。 社交网络的出现为研究人员提供了一个重新审视点对点系统以抵抗审查的机会。该项目的重点是使用社会信任关系作为实现高度安全和抗阻塞覆盖的基础，以支持网络服务，同时还接近通常与直接通信相关的易用性、性能和可靠性。 具体来说，该系统将使用社交覆盖，其中参与者形成基于现实世界信任关系引导的点对点覆盖网络。 社交覆盖的参与者将能够直接交流和分享内容，而不必暴露他们的行为，也不会被阻止。 一个关键的设计选择也是开发完全在网络浏览器内运行的系统，利用新开发的技术为浏览器内的点对点通信提供支持。 基于浏览器的最终用户解决方案可以轻松部署，无需大量基础设施成本。 该系统将克服几个关键的、相互关联的挑战。 其中主要包括：性能、灵活性、可信度和稳健性。