NeTS: Small: PerSoNet: Overlay Virtual Private Networks Spanning Personal Clouds and Social Peers

移动和云计算的进步导致设备数量不断增加，在容量、功能和使用模式方面也越来越多样化。此外，在线社交网络(OSN)在用户交互中的广泛采用表明，未来应用程序越来越需要在分布式个人设备之间以及跨社交对等设备进行通信的能力。这些设备之间的通信不仅是无缝的，而且是安全的，这一点至关重要。然而，设备的数量、移动性和多样性的增加带来了越来越多的挑战。在企业环境之外，用户通常仍然负责管理他们自己的设备，这是复杂且容易出错的。为了应对这些挑战，本项目开发了PerSoNet，这是一种基于覆盖对等网络(P2P)的新方法，允许互联网用户无缝地建立连接他们自己的个人设备的虚拟专用网络，并通过利用OSN作为用户和设备发现以及建立私人通信通道的基础，扩展到他们信任的对等设备的设备。PerSoNet是一种非结构化P2P覆盖网络，其拓扑结构源于个人设备链接和社交网络关系。它支持各种个人设备之间的私有端到端通信，利用社交关系来发现和建立社交对等点之间的私有消息传递通道，并应用网络虚拟化技术来支持未经修改的软件。因此，现有和未来的应用可以在个人设备网络内和在社交对等体之间进行私密通信，将朋友连接抽象为网络链接，而不放弃使用现有OSN来无缝发现和管理关系，并使用公知的网络抽象和编程原语向开发者展示。具体地说，PerSoNet暴露了一组个人设备中的第二层虚拟网络抽象，以及跨社交网络用户的设备的第三层抽象，为支持现有和未来的应用提供了基础。该项目通过定量研究，使用模拟技术，并通过软件原型和现实应用程序和系统的实验，推动系统设计和实施的最先进水平，研究新的覆盖技术。该项目有可能影响大量OSN用户的应用，包括私人数据共享、同行之间的私人通信以及抗灾和抗审查的通信系统。PerSoNet软件将向系统研究社区、开源开发人员和广大公众开放。

Progress in mobile and cloud computing leads to an ever-increasing number of devices with increasing diversity in capacity, capabilities and usage modalities. Furthermore, the wide adoption of Online Social Networks (OSNs) for user interaction points to a future where applications increasingly demand the ability to communicate among distributed personal devices, and across those of social peers. It is crucial for these devices to communicate with each other not only seamlessly, but also securely. However, the increased number, mobility and diversity of devices pose ever-increasing challenges. Outside of an enterprise environment, users remain typically responsible for managing their own devices which is complex and error-prone. To address these challenges, this project develops PerSoNet, a novel approach based on overlay peer-to-peer (P2P) networks allowing Internet users to seamlessly establish virtual private networks connecting their own personal devices and extending to devices of their trusted peers by leveraging OSNs as a basis for user and device discovery and for the setup of private communication channels.PerSoNet is an unstructured P2P overlay whose topology is derived from personal device links and social networking relationships. It supports private end-to-end communication among various personal devices, leverages social relationships for the discovery and setup of private messaging channels among social peers, and applies network virtualization techniques to support unmodified software. Thus, existing and future applications can communicate privately within personal device networks and across social peers, abstracting friend connections as network links, without forfeiting the use of existing OSNs for seamless discovery and management of relationships, and exposing using well-known network abstractions and programming primitives to developers. Specifically, PerSoNet exposes a layer-2 virtual network abstraction among the set of personal devices, and a layer-3 abstraction across devices of social network users, providing a basis to support existing and future applications. The project investigates novel overlay techniques with quantitative studies, using simulation techniques and also by advancing the state-of-the-art in systems design and implementation through a software prototype and experiments with realistic applications and systems. This project has the potential to impact a large number of OSN users in applications including private data sharing, private communication among peers, and disaster- and censorship-resistant communication systems. The PerSoNet software will be available to the systems research community, open-source developers, and the public at large.