On 2013-08-21 7:33 AM, grarpamp wrote:
The subject thread is covering a lot about OS implementations and RNG various sources. But what are the short list of open source tools we should be using to actually test and evaluate the resulting number streams? _______________________________________________
You cannot test and evaluate a supposedly random number stream. True randomness and cryptographically strong pseudo randomness are not directly observable qualities.
You have to look at the underlying generation mechanism and deduce randomness, or the lack thereof.
If you apply a whitening expander to the source stream ....0000000.... the output stream will look convincingly random, but will be completely non random to anyone who knows the whitening expander and knows or suspects that the source stream is completely non random
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