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4
votes
2answers
109 views

Why is there readonly (const) in C++, but not writeonly (sink)?

C++ initially had "readonly" and "writeonly" qualifiers, before "readonly" was renamed to "const", and "writeonly" removed. My question is: What are the problems with "writeonly" (or a "sink" ...
2
votes
1answer
22 views

Access control matrices: who are the subjects: users or processes?

I'm studying the basics of security in computers. The doubt I have is that the access control matrix is presented as a matrix whose rows are the subjects and the columns are the objects. Also subjects ...
0
votes
2answers
2k views

Direct vs. Random Access

Would someone please clarify for me the difference between direct and random access? Specifically, why does this Wikipedia article on Direct Access Storage Devices distinguish between the two: ...
2
votes
1answer
396 views

Can the Bell-LaPadula model emulate the Chinese Wall model?

I have been reading on security policies and the question wether Bell-LaPadula can be used to implement Chinese Wall. Does anyone know more about it?
1
vote
1answer
96 views

Where can I find good study material on Role Mining?

I need to cover these topics in Role Mining. If anyone knows good site which well summarizes the topics and concepts are well explained please help out. Basic role mining problem • Delta-approx RMP • ...
5
votes
2answers
176 views

Fine-grained security models for XML data

Access control models are typically very coarse-grained, allowing one access to a resource (possibly with some combination of read/write/execute permission) or exclude such access. Some models of ...