基于关系加密的隐私保护方法  

A Privacy Protection Method Based on Relationship Encrypt

作　　者：孟祥[1] 康海燕[2] 

机构地区：[1]北京信息科技大学计算机学院,北京100192 [2]北京信息科技大学信息管理学院,北京100192

出　　处：《武汉大学学报（理学版）》2016年第2期127-134,共8页Journal of Wuhan University:Natural Science Edition

基　　金：国家自然科学基金资助项目(61370139);北京市社会科学基金项目(15JGB099);北京市优秀人才培养资助项目(2013E005007000001);教育部人文社会科学项目(11YJC870011)

摘　　要：隐私保护和数据共享中存在两个特点:第一,隐私攻击通常是以链接攻击为基础的;第二,希望共享的是数据整体趋势而不是具体的个人信息.基于以上两点,本文提出了一种基于加密思想和权限控制的数据发布策略,并设计了基于关系加密的隐私保护算法.一方面对记录向量进行加密,极大程度上限制了数据链接外部知识的能力,达到了隐私保护的目的;另一方面为了维持数据实用性,设计了专家参数,该参数能够保证在关系加密的过程中维持数据的实用性.实验表明该方法能在提高隐私保护的同时在一定程度上维持数据的实用性.There are two characteristics of privacy protection and data sharing：Firstly,privacy attacks are usually based on link attacks;secondly,the information we want to share is the overall data trends rather than specific personal information.So we present a framework for data release based on encryption and access control,and design a privacy protection algorithm（Relationship-Encrypt）based on relationship encrypt.On one hand this algorithm greatly limits data＇s ability of link external knowledge by encrypting the record vector to ensure privacy protection;on the other hand,the expert parameter was designed in order to maintain the utility of the data.This parameter can be used to maintain the utility of the data during the process of relationship.Experiments show that this method to some extent will protect privacy and maintain data＇s utility at the same time.

关 键 词：加密 关系加密 权限控制 隐私保护 数据发布 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]