基于信誉值的结构化数据访问控制模型  

Structured data access control model based on credit value

作　　者：许浩海 于炯[1,2] 卞琛[2] 鲁亮[2] 金亮 XU Hao-hai;YU Jiong;BIAN Chen;LU Liang;JIN Liang(School of Software,Xinjiang University;School of Information Science and Engineering,Xinjiang University;)

机构地区：[1]新疆大学软件学院,新疆乌鲁木齐830008 [2]新疆大学信息科学与工程学院,新疆乌鲁木齐830046

出　　处：《计算机工程与设计》2018年第8期2407-2411,共5页Computer Engineering and Design

基　　金：国家自然科学基金项目(61262088;61462079;61562086;61363083;61562078);新疆维吾尔自治区自然科学基金项目(2017D01A20);新疆维吾尔自治区高校科研计划基金项目(XJEDU2016S106)

摘　　要：为解决分布式系统中的个性化访问控制问题,提出基于信誉值的结构化数据访问控制模型。从系统中的所有主体入手,通过对主体进行信誉值的不断评估,得到一个较为符合的信誉体系,使系统可以通过信誉值的等级来控制访问系统不同程度的隐私数据。该模型主要通过对基本信誉值、累积信誉值和关联信誉值的计算,并采取惩罚机制对非正向行为的主体降低其信誉值,使系统中的信誉值体系符合数据访问控制的要求。通过模拟实验验证了访问控制的有效性。Aiming at the problem of personalized access control of distributed systems,a structured data access control model based on credit value was proposed.With a focus on all the subjects in the system,through constant evaluation of these subjects using their credit values,a more rational credit system was built.The system could control the access of the data with different degrees of privacy based on their credit values.Basic credit value,accumulated credit value,and associated credit value of all the subjects were calculated and a penalty policy was used to reduce the credit values of subjects with non-positive behaviors to make the credit system meet the requirement of data access control in distributed systems.Results of simulation show the effectiveness of access control.

关 键 词：信誉值 访问控制 隐私数据 隐私保护 信誉体系 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]