Messages in this thread | | | Date | Mon, 19 Aug 2002 12:15:07 +0200 (CEST) | From | Marco Colombo <> | Subject | Re: [PATCH] (0/4) Entropy accounting fixes |
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On Mon, 19 Aug 2002, Theodore Ts'o wrote:
[...] > P.S. /dev/urandom should probably also be changed to use an entirely > separate pool, which then periodically pulls a small amount of entropy > from the priamry pool as necessary. That would make /dev/urandom > slightly more dependent on the strength of SHA, while causing it to > not draw down as heavily on the entropy stored in /dev/random, which > would be a good thing.
Shouldn't it be moved to userpace, instead? Pulling a small amount of entropy from /dev/random can be done in userspace, too. And the application could choose *how often* and *how many* bits to pull. The kernel can only make a choice which may be too much for an application (making it drain more entropy than it needs) or too little for another (forcing it to use /dev/random directly). Let the kernel implement the Real Thing only (/dev/random). /dev/urandom really belongs to userspace.
.TM.
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