I-Corps: Blocking-, Censorship-, Surveillance-, and Disaster-Resistant Communication for Normal Smartphone Users

言论自由使人们更容易获得理性的个人和集体决策所需的信息。目前，通信技术很容易受到屏蔽、审查或监视，因为不存在在商用硬件上运行的易于使用的技术。然而，直接和可传递的智能手机到智能手机的通信技术有可能使普通人更容易有效地进行通信，而不会受到屏蔽、审查或监视。这项拟议的工作将通过在普通人之间进行抗审查的交流来支持言论自由。拟议的工作还具有人道主义应用，例如在人为或自然灾害使基于基础设施的通信系统部分或完全瘫痪时，能够继续进行通信。它还有可能通过实现可靠的私人通信而使社区和家庭受益。更广泛的信息获取和更少的宣传增加了做出正确的经济和个人决策的可能性。关键是打破对容易被颠覆的互联网基础设施的依赖。单个智能手机自动连接到本地无线网络，而不需要依赖蜂窝基站或无线接入点，因此消息通过智能手机用户社区在城镇之间跳跃。最近，该团队开发了电源模型，可以将通信协议设计决策与智能手机电池寿命联系起来，再次提高了效率。具体地说，该团队开发的技术可以在Android平台的智能手机之间实现直接的电话到电话通信，而不需要更改硬件或操作系统，现在可以收集基于智能手机的无基础设施网络的时变通信网络拓扑结构的数据，并且可以根据其他网络参与者做出的消息重传决定自动识别无授权网络中的垃圾邮件来源

Free speech eases access to information necessary for rational individual and collective decision making. Currently, communication technologies are susceptible to blocking, censorship, or surveillance because no easy to-use technologies that run on commodity hardware exist. Direct and transitive smartphone-to-smartphone communication technologies, however, have the potential to make it easier for normal people to efficiently communicate without being subject to blocking, censorship, or surveillance. The proposed work will support freedom of speech by enabling censorship-resistant communication among normal people. The proposed work also has humanitarian application such as enabling continued communication when man-made or natural disasters have partially or fully disabled infrastructure-based communication systems. It also has the potential to benefit communities and families by enabling reliable, private communication. Wider access to information and reduced propaganda increases the likelihood of correct economic and personal decisions.The key is breaking dependence on easily subverted Internet infrastructure. Individual smartphones automatically link up into a local wireless network without dependence on cellular base stations or wireless access points, so messages hop across towns through a community of smartphone users. Recently the team has developed power models that can relate communication protocol design decisions to smartphone battery life, yet again improving efficiency. Specifically, the team has developed technologies that can enable direct phone-to-phone communication among Android-platform smartphones without changes to hardware or operating system, can now gather data on time-varying communication network topologies for smartphone-based infrastructureless networks, and can automatically identify spam sources in authority-less networks based on the message retransmission decisions made by other network participants