计算机科学
計算機科學
계산궤과학
COMPUTER SCIENCE
2010年
5期
91-94,111
,共5页
熊庭刚%卢正鼎%张家宏%马中
熊庭剛%盧正鼎%張傢宏%馬中
웅정강%로정정%장가굉%마중
分布式访问控制%访问控制框架%quorum系统%可用性%访问控制容量
分佈式訪問控製%訪問控製框架%quorum繫統%可用性%訪問控製容量
분포식방문공제%방문공제광가%quorum계통%가용성%방문공제용량
Distributed access control%Access control framework%Quorum system%Availability%Access control capability
从通用访问控制系统出发,提出以quorum系统来设计访问控制框架,给出了基于互斥协议的quorum分布式访问控制系(MQ-DACS),以在保持高效率的情况下,提高访问控制决策的稳定性和安全性.进一步分析了在系统结点不可靠的环境中,系统能并行执行的访问控制容量同系统可用性之间的关系,并给出了最佳方案的选取依据.
從通用訪問控製繫統齣髮,提齣以quorum繫統來設計訪問控製框架,給齣瞭基于互斥協議的quorum分佈式訪問控製繫(MQ-DACS),以在保持高效率的情況下,提高訪問控製決策的穩定性和安全性.進一步分析瞭在繫統結點不可靠的環境中,繫統能併行執行的訪問控製容量同繫統可用性之間的關繫,併給齣瞭最佳方案的選取依據.
종통용방문공제계통출발,제출이quorum계통래설계방문공제광가,급출료기우호척협의적quorum분포식방문공제계(MQ-DACS),이재보지고효솔적정황하,제고방문공제결책적은정성화안전성.진일보분석료재계통결점불가고적배경중,계통능병행집행적방문공제용량동계통가용성지간적관계,병급출료최가방안적선취의거.
By researching on generalized system for access control,the paper put forward an access control frameworkadopting quorum system,and presented a mutml quorum distributed access control system,with the high efficiency and the stability and security.Furthermore,the relation of system capability and system availability under the circumstance that the system nodes are not reliable was analyzed,and a result was given that the mode of the optimization of the entire system considers the capability and availability.
