TC: Medium: Collaborative Research: Security Services in Open Telecommunications Networks

该奖项是根据2009年《美国复苏和再投资法案》(Public Law 111-5)资助的。电信网络的性质正在迅速变化。Android和Openmoko等商品智能手机框架邀请开发者和最终用户构建应用程序，修改电话的行为，并以新的方式使用网络服务。然而，在刺激令人难以置信的创新的同时，向开放系统的转变改变了网络设计所依据的基本性能和安全假设。这样的变化会带来各种漏洞，从令人恼火的手机故障到灾难性的网络故障。目前的基础设施缺乏保护日益开放的网络所需的基本保护，开放系统和服务将带来哪些新的压力和威胁尚不清楚。这项研究通过分析和实验研究了防御性基础设施，以解决开放蜂窝操作系统和电信网络中的漏洞。在这方面，我们正在通过三个协调努力来探索此类防御的需求和设计：a)扩展和应用电信系统的正式策略模型，并为手机制造商、提供商、开发商和最终用户提供策略合规性验证工具；b)构建具有安全意识的开源Android操作系统分发；以及c)探索电信网络中的过载控制的需求和设计，以吸收移动电话行为、流量模型和通信终端的多样性的变化。这项研究通过支持研究生和本科生的研究，共生支持组成机构的教育目标，并是安全和网络课程的组成部分。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The nature of telecommunications networks is rapidly changing.Commodity smartmobile phone frameworks such as Android and Openmoko invite developers and end users to build applications, modify the behavior of the phone, and use network services in novel ways. However, while simultaneously spurring incredible innovation, the move to open systems alters the underlying performance and security assumptions upon which the network was designed. Such changes invite vulnerabilities ranging from merely vexing phone glitches to catastrophic network failures. The current infrastructure lacks the basic protections needed to protect an increasingly open network, and it is unclear what new stresses and threats open systems and services will introduce.This research analytically and experimentally investigates defensive infrastructure addressing vulnerabilities in open cellular operating systems and telecommunications networks. In this, we are exploring the requirements and design of such defenses in three coordinated efforts; a) extending and applying formal policy models for telecommunication systems, and provide tools for phone manufacturer, provider, developer, and end-user policy compliance verification, b) building a security-conscious distribution of the open-source Android operating system, and c) explore the needs and designs of overload controls in telecommunications networks needed to absorb changes in mobile phone behavior, traffic models, and the diversity of communication end- points.This research symbiotically supports educational goals at the constituent institutions by supporting graduate and undergraduate student research, and is integral to the security and network curricula.