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Jul
31
awarded  Popular Question
Oct
12
accepted What (precisely) is a block cipher?
Oct
12
asked What (precisely) is a block cipher?
Jul
6
awarded  Student
Jul
6
awarded  Scholar
Jul
6
comment Using a Hash as a secure PRNG
So generally, the NIST wasn't quite sure, but they felt like doing some random stuff would make it more.. random? ;)
Jul
6
accepted Using a Hash as a secure PRNG
Jul
6
revised Using a Hash as a secure PRNG
added 96 characters in body
Jul
6
comment Using a Hash as a secure PRNG
Yeah but that makes like 2 additional lines, still nowhere near the NIST algorithm
Jul
6
awarded  Citizen Patrol
Jul
6
comment Using a Hash as a secure PRNG
As for the flaw in idea 2: That is correct, thanks for pointing that out. As for addition of entropy, what about hash(state || new_seed)? The fixed-length output can also easily be fixed, that's not really a concern I'm afraid.
Jul
6
revised Using a Hash as a secure PRNG
added 33 characters in body
Jul
6
awarded  Editor
Jul
6
revised Using a Hash as a secure PRNG
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Jul
6
asked Using a Hash as a secure PRNG
Dec
6
awarded  Supporter