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Results tagged with theory
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user 971
3
votes
BLP Lattice structure with missing top and bottom levels
BLP assumes that the lattice is, well, a lattice. The mathematical definition of a lattice says that it must have a top and a bottom. If you don't have a top and a bottom, it's not a lattice.
If yo …
- 100k
4
votes
Where can I learn cryptography/cryptanalysis the hard way, without going to school ? Any goo...
I recommend Cryptography Engineering: Design Principles and Practical Applications. It is the perfect book for you. It describes how to design and implement cryptosystems, from the perspective of a …
- 100k
3
votes
Appilicability of Theoritical Computer Science/Formal methods in Malware research
What makes you think that formal methods or theoretical CS will be relevant?
I think a better question is: what tools from computer science might be relevant to this problem? My answer to that quest …
- 100k
11
votes
Are there some good papers (or discussions) on using Markov chains or Hidden Markov Models f...
Papers. In addition to @Dogeatcat world's excellent answer, here are some more papers:
Matt Weir, Sudhir Aggarwal, Breno de Medeiros, Bill Glodek, Password Cracking Using Probabilistic Context-Free G …
- 100k
5
votes
Is it correct to consider audits as exclusively "detective" in nature?
Audits are typically used for detection: detecting problems. Controls typically provide prevention: preventing intrusions.
However, you can use audits for more than just detecting intrusions. You c …
- 100k
7
votes
How valuable is secrecy of an algorithm?
There are two important differences between algorithms vs. passwords/keys:
You can (and should) change cryptographic keys routinely -- or when a compromise is suspected. This mitigates loss of secr …
- 100k