Usability

In order to enable collaboration between different parties it is necessary that the partners reach an agreement on the policy rules that will govern their interaction. While state-of-the-art mechanisms will allow the parties to reconcile their polices, today's policy reconciliation protocols have two main shortcomings. First, they violate privacy since at least one of the parties is required to discloses all its information during the reconciliation process. Second, they generally lack fairness, i.e., the parties' preferences are not recognized.

Security and privacy concerns in the increasingly interconnected world are receiving much attention from the research community, policymakers, and general public. However, much of the recent and on-going efforts concentrate on security of general-purpose computation and on privacy in communication and social interactions.

Technology advances have brought numerous benefits to people and society, but also heightened risks to privacy. This project will investigate mechanisms and build tools to help people make privacy-aware decisions in different online contexts. The outcomes will help people to better understand their own privacy preferences and behavior, and enable them to better manage their privacy on the Internet. The project will create designs that can be integrated into mobile app markets and web browsers. The results will also inform Internet standards and governmental policies on Internet privacy.

The cyber security threat to organizations and governments has continued to grow with increasing dependence on information technology; meanwhile, the entities behind cyber attacks increase in sophistication. Cyber security professionals, the individuals responsible for keeping organizations secure, investigate network activity to find, identify, and respond to threats. These individuals are among the last lines of defense for an organization. Cyber security professionals depend on automated tools to perform their jobs but must make critical decisions that impact security.

This research focuses on understanding the digital security and privacy needs of journalists and their sources to evaluate and design communication technologies that better support the fundamental operations of a globally free and unfettered press. Journalists -- along with their organizations and sources -- are known to be high-risk targets for cyberattack. This community can serve as a privacy and security bellwether, motivated to use new technologies, but requiring flexibility and ease-of-use. Many existing secure tools are too cumbersome for journalists to use on a regular basis.