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arXiv 1901.10097cs.CR
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隐身云端,构建隐形通信网络

Hiding in the Clouds and Building a Stealth Communication Network

Wei Jiang, Adam Bowers, Dan Lin

摘要:

社交网络、即时消息和文件共享系统是朋友、家人、同事等之间的常见通信手段。由于对个人隐私、身份盗窃、数据滥用、言论自由和政府监视的关注,在线社交或通信网络为用户提供了保护或控制他或她的个人数据的各种选项。然而,对于大多数这些服务,用户数据仍然可以由服务提供商访问,这可能导致如果在服务器侧发生数据泄露和网络管理员滥用数据的责任问题。为了防止服务提供商访问用户数据,必须提供安全的端到端用户通信,例如WhatsApp提供的通信。另一方面,由这种通信网络提供的服务仍然可能受到权威机构的干扰。为了使通信网络具有隐身性,以下特征是必不可少的:(1)不经意的服务,(2)完全的用户控制和灵活性,以及(3)轻量级。在本文中,我们首先讨论了隐形通信网络(SNET)的特点和好处,然后我们提出了一个理论框架,可以通过实现SNET。通过利用该框架和现有的公开可用的云存储,我们提出了SNET的一个实例,名为Secret-Share的实现细节。最后,我们讨论了当前Secret-Share的局限性及其潜在的扩展。

英文摘要:

Social networks, instant messages and file sharing systems are common communication means among friends, families, coworkers, etc. Due to concerns of personal privacy, identify thefts, data misuse, freedom of speech and government surveillance, online social or communication networks have provided various options for a user to guard or control his or her personal data. However, for most these services, user data are still accessible by the service providers, which can lead to both liability issues if data breach occurs at the server side and data misuse by the network administrators. To prevent service providers from accessing user data, secure end-to-end user communication is a must, like the one provided by WhatsApp. On the other hand, the services provided by such communication network can still be interfered by an authority. For a communication network to be stealthy, the following features are essential: (1) oblivious service, (2) complete user control and flexibility, and (3) lightweight. In this paper, we first discuss the features and benefits of a stealth communication network (SNET), and then we propose a theoretical framework that can be adopted to implement an SNET. By utilizing the framework and the existing publicly available cloud storage, we present the implementation details of an instance of SNET, named Secret-Share. Last but not least, we discuss the current limitations of Secret-Share and its potential extensions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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