THE PRIVACY ADVOCATE (PRIVAD): A Framework for Negotiating Individual Privacy Contracts

摘要

Privacy has been a hot topic in research for several years. A lot of different approaches to protect privacy have been proposed recently. Among these are several tools for negotiation of privacy contracts. In this paper we present our privacy negotiation framework called "Privacy Advocat (PrivAd)". It consists of three main parts: the policy evaluation unit, the signature unit and the preferences. In addition our frame supports an interface for negotiation strategies, so that they are independent of the framework. The preferences can be expressed with a combination of P3P and APPEL. The test we executed using a state of the art PDA clearly indicate that our framework can be used by mobile devices. The completion of a negotiation takes about 2 sec. including message transfer via an 802.11b wireless link. The processing itself is done in less than 250 msec.