Method of securing the collaboration between objects of an object oriented program

摘要

The secure collaboration is provided through a number of steps. The first step is to assign a level of protection to the client object. A dynamic level of sensitivity is then assigned to the server object during instantiation of the server object. The dynamic level of sensitivity is computed from a static level of sensitivity and a protection level passed to the object constructor. These static sensitivity levels are stored in memory and assigned to different logical entities in the program. The protection level of the client is passed via the invocation message, and the protection level compared with the dynamic level of sensitivity to determine access.