【摘要】 针对传统的用户数据安全性访问算法存在安全性及整体性能低下的问题,提出一种新的云环境下用户数据安全性访问控制算法。通过介绍所提算法的基本概念,利用模糊层次分析法计算云环境中用户数据直接信任值;通过用户和其他云服务之间的信任值求取用户数据推荐值;在此基础之上,确定用户数据综合信任值。通过用户数据信任等级分配得到用户访问权限,针对信任水平较低的用户,云服务供应商通过拒绝其访问保证整个云环境的安全性。实验结果表明,所提算法安全性高,整体性能强。更多还原

【Abstract】 In order to solve the problem of security and low overall performance of traditional user data security access algorithm,a new secure access control algorithm is proposed. The basic concept of the algorithm proposed by the cloud computing environment,user data in direct trust value using fuzzy AHP; the recommended value through user data between users and other cloud services trust value was calculated; on this basis,the user data integrated trust value was determined. The user’s access rights are assigned by the user’s data trust level. For the users with low level of trust,the cloud service provider can guarantee the security of the entire cloud environment by refusing its access. The experimental results show that the proposed algorithm has high security and strong overall performance.更多还原