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• W167995079 abstract "Role based access control (RBAC) assigns access permissions to a role rather than a user. This simplifies access control management by simply assigning appropriate roles to users and by modifying the permissions of the roles. With the advent of ubiquitous computing, many kinds of ser vices, especially personalized services to give convenience to users, have been introduced. Am ong them, providing proper access perm issions to users based on the current context has becom e an important issue because their status and access privilege should be dy namically changed. Previously, various access control m ethods utilizing context awareness have been proposed; however, their constraint description methods, used to assign a role to a user, are quite complex and not enough to express detailed context. Also, they do not fully cover the various situations that can be occurred in ubiquitous com puting environments. In this paper, we propose an access control scheme, com bining RBAC with context awaren ess, to give pr oper pr ivilege to user s based on their current context in ubiquitous computing environments. Our scheme defines the constraints f or assigning a role a nd modifying the perm issions of each role, enabling more detailed descriptions. We also provide various access control algorithm s to support diverse situations which occur in ubiquitous computing environments." @default.
• W167995079 created "2016-06-24" @default.
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• W167995079 date "2010-01-01" @default.
• W167995079 modified "2023-10-08" @default.
• W167995079 title "CA-RBAC: Context Aware RBAC Scheme in Ubiquitous Computing Environments" @default.
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