支持目的与信誉度的隐私偏好规约模型

Privacy Preference Specification Model for Supporting Purpose and Reputation

确保互联网服务在满足用户功能性需求的前提下保护隐私信息,是隐私保护研究的关键问题。访问控制是保护信息的传统手段,但其缺少使用目的、信誉度、义务等隐私语义,并且需要针对不同的数据使用者定义不同的策略。针对策略冗余、策略冲突等问题,提出了支持目的与信誉度绑定的隐私保护框架。首先给出了对应的访问控制模型,其次分析了隐私偏好的冲突问题,提出了目的冲突检测算法以及偏好冲突检测算法,最后通过实验证明了算法的可行性。

It is the key issue of privacy protection to ensure that Internet services protect privacy information under the premise of meeting the functional requirements of users.Access control is a traditional way to protect information,but it lacks priva- cy semantics such as purpose, reputation, obligation, and needs to define different strategies for different data users.Aiming at policy redundancy and policy conflict, a privacy protection framework supporting purpose and reputation binding has been proposed.First- ly,the con＇esponding access control model has been given.Secondly,the conflict of privacy preference has been analyzed.Finally, the purpose conflict detection algorithm and privacy preference conflict detection algorithm have been proposed.