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In order to improve the data access efficiency and enhance the security in IT systems, a layered access control model with classified distributed storage in distributed environment is presented. In the model, information is stored in numbers of physical distributed storage nodes. The storage architecture is logically organized into four classes, which includes active data storage, static data storage,...
Security in mobile agent systems is twofold: protection of mobile agents and protection of agent execution system. Indeed, the proposed solutions for the security of distributed systems arenpsilat sufficient. Moreover, therepsilas no solution which treats the different concerns of security in the mobile agent systems. To achieve this goal, we use formal foundations which provide a rigorous reasoning...
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