计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2014年
1期
30-33,72
,共5页
云计算%数据安全%访问控制%授权规则%否定规则
雲計算%數據安全%訪問控製%授權規則%否定規則
운계산%수거안전%방문공제%수권규칙%부정규칙
Cloud computing%Data security%Access control%Authorisation rule%Negative rule
数据的安全性和隐私保护给云计算领域带来了极大挑战，为实现合作企业间在云环境下公开共享部分数据且不涉及保密信息，提出一种基于否定规则的访问控制技术。主要思想是通过判断访问查询是否授权，检测授权与否定规则是否存在冲突，来达到阻止非法访问的目的。理论分析和实验结果表明该机制能有效地保障云数据的安全。
數據的安全性和隱私保護給雲計算領域帶來瞭極大挑戰，為實現閤作企業間在雲環境下公開共享部分數據且不涉及保密信息，提齣一種基于否定規則的訪問控製技術。主要思想是通過判斷訪問查詢是否授權，檢測授權與否定規則是否存在遲突，來達到阻止非法訪問的目的。理論分析和實驗結果錶明該機製能有效地保障雲數據的安全。
수거적안전성화은사보호급운계산영역대래료겁대도전，위실현합작기업간재운배경하공개공향부분수거차불섭급보밀신식，제출일충기우부정규칙적방문공제기술。주요사상시통과판단방문사순시부수권，검측수권여부정규칙시부존재충돌，래체도조지비법방문적목적。이론분석화실험결과표명해궤제능유효지보장운수거적안전。
The security of data and the privacy protection bring huge challenges to cloud computing field.In order to implement part sha-ring of the data publicly among the cooperative enterprises in cloud environment without involving into confidential information,in this paper we provide an access control method which is based on negative rules.The main idea of the method is to detect whether the authorisation con-flicts with the negative rules through judging the authorisation of access and query so that to reach the goal of preventing the illegal accesses. Both the theoretical analysis and experimental results show that this mechanism can ensure the security of cloud data effectively.
