Methods for Access Control: Advances and Limitations
the size of the matrix. The size of the access control matrix would not be a concern if the matrix was dense, however, most subjects have no access rights on most objects so, in practice, the matrix is very sparse. If access control infor-mation was maintained in this matrix form, large quantities of space would be wasted and lookups would be ...
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A idsummer ight’s Theme - Harvey Mudd College
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