Re: Verification not generation
2nd line of article, my emphasis:
"The recommendation NIST's put up for discussion covers the design principles and requirements for random bit generators, and tests to validate entropy sources."
Gideon 1, my emphasis
""Verification not generation ... It's interesting how many Commentards didn't understand the article."
On a more serious note, given the difficulties in verifiability (not just doing it, but doing it in a way that is widely understood), I think verifiable generation (quantum & other physical methods proposed above by commentards including myself "who didn't understand the article") would be a better approach than new methods for verification. Given that there are any number of deterministic sequences (e.g. digits of pi, mentioned above) that satisfy all existing tests for randomness and (as far as my limited mathematical understanding goes) are likely to continue to do so, verifiable generation seems to me a much more promising area than verification of deterministic generators.