TC: Small: Distributed Privacy-Preserving Policy Reconciliation

为了使各方之间能够进行协作，合作伙伴必须就管理其互动的政策规则达成一致。虽然最先进的机制将使各方能够协调其政策，但目前的政策协调议定书有两个主要缺点。首先，它们侵犯隐私，因为至少一方必须在和解过程中披露其所有信息。其次，它们通常缺乏公平性，即，当事人的选择不被承认。这项研究旨在开发新的技术，使私人和公平的政策和解。这项研究的好处远远超出了政策和解本身的领域。事实上，政策协调预计将发挥越来越重要的作用，在管理和安全的基础设施和程序，从日常活动，如安排预约在线，以加强互操作性，在今天的手机基础设施，未来的互联网架构。

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. This research is geared to develop novel techniques that enable both private and fair policy reconciliation.The benefits of this research go far beyond the field of policy reconciliation itself. In fact, policy reconciliation is expected to play an increasingly important role in managing and securing infrastructures and procedures, ranging from day-to-day activities such as scheduling an appointment online, to enhancing interoperation in today's cell phone infrastructure, to the architecture of the Future Internet.