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Re: [Demexp-dev] VIA x86-like processors with cryptographic facilities
From: |
David MENTRE |
Subject: |
Re: [Demexp-dev] VIA x86-like processors with cryptographic facilities |
Date: |
Sun, 19 Sep 2004 10:10:10 +0200 |
User-agent: |
Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux) |
Hello Brian,
Brian Hurt <address@hidden> writes:
> I wouldn't trust the random number generator. As a source of randomness,
> yes- but I'd wash them through a cryptographic hash to wash out any
> biases. It's really easy for biases to creep into hardware RNGs.
Yes, you have raised a good point. Anyway, before using such generator,
I would use tests on generator to evaluate its randomness.
And BTW, it is possible that the random generator is not a proper
generator based on a physical device like thermal noise. But, in that
case, cryptographically hashing them wouldn't help: if the source of the
cryptographic hash is predictable, then the hashed value is
predictable. That's why having a real source of randomness is important.
I said it was a solution to consider, I didn't said it was THE
solution. :) And we are far from being at that step yet. :(
Yours,
d. -- probably not qualified to speak of cryptography
--
David MENTRÉ <address@hidden>