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    SubjectRe: [PATCH] (0/4) Entropy accounting fixes
    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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