Access control has made a long way from 1960s. With the advent changes of technologies pertaining to location transparency in storage of data, there arises different access control scenarios. Cloud storage, the predom...Access control has made a long way from 1960s. With the advent changes of technologies pertaining to location transparency in storage of data, there arises different access control scenarios. Cloud storage, the predominant storage that is being in use currently, also paves way to various access control problems. Though there are various access control mechanisms such as RBAC, ABAC, they are designed on the user’s perspective such as the role held by the user or other attributes assigned to the user. A new access control mechanism called object relationship based access control (RoBAC) has been developed based on the relations held among the users. The policy decision of access control is based on the relationship among the classes followed in the Java programming. Results have shown that this model best suits various scenarios in the cloud environment, and it also shows that the time for making decision either to allow or to deny is reduced compared to the existing system.展开更多
ASSUME that ξ = （ξ<sub>t</sub>, Ⅱ<sub>x</sub>） is a right Markov process in R<sup>d</sup>. Let φ（x, z） = a（x）z+b（x）z<sup>2</sup>+integral from n=0 to ∞ (e&l...ASSUME that ξ = （ξ<sub>t</sub>, Ⅱ<sub>x</sub>） is a right Markov process in R<sup>d</sup>. Let φ（x, z） = a（x）z+b（x）z<sup>2</sup>+integral from n=0 to ∞ (e<sup>-uz</sup>-1+uz)n<sup>x</sup>（du）, x∈ R<sup>d</sup>, z∈R<sup>+</sup>. （1）Consider the following Dirichlet problem:展开更多
文摘Access control has made a long way from 1960s. With the advent changes of technologies pertaining to location transparency in storage of data, there arises different access control scenarios. Cloud storage, the predominant storage that is being in use currently, also paves way to various access control problems. Though there are various access control mechanisms such as RBAC, ABAC, they are designed on the user’s perspective such as the role held by the user or other attributes assigned to the user. A new access control mechanism called object relationship based access control (RoBAC) has been developed based on the relations held among the users. The policy decision of access control is based on the relationship among the classes followed in the Java programming. Results have shown that this model best suits various scenarios in the cloud environment, and it also shows that the time for making decision either to allow or to deny is reduced compared to the existing system.
文摘ASSUME that ξ = （ξ<sub>t</sub>, Ⅱ<sub>x</sub>） is a right Markov process in R<sup>d</sup>. Let φ（x, z） = a（x）z+b（x）z<sup>2</sup>+integral from n=0 to ∞ (e<sup>-uz</sup>-1+uz)n<sup>x</sup>（du）, x∈ R<sup>d</sup>, z∈R<sup>+</sup>. （1）Consider the following Dirichlet problem:
