[Cryptech Tech] RAM as source of entropy

[Joachim Strömbergson]

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Aloha!

Василий Долматов wrote:
> continuous self-test of evenness of distribution of output.

You mean a running count of all values in the value space or calculating
mean value?  Each of those does not protect you nearly enough - for
example they do not detect frequent but short burst of equal value runs.

The BSI AIS3 standard contains about 20 online tests, SP 800-90 contains
13 tests just for online testing to determine a good source from a bad
source.

I'm planning to build a test structure with several (as many) of these
tests, a structure that can be instantiated for each source.

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
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 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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