Re: more on the UUID

From: Rui Miguel Seabra (rms_at_1407.org)
Date: Thu Mar 04 2004 - 16:11:17 EST

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    On Thu, 2004-03-04 at 20:04 +0100, Petr Tomasek wrote:
    > On Thu, Mar 04, 2004 at 06:09:21PM +0000, Rui Miguel Seabra wrote:
    > > On Thu, 2004-03-04 at 14:50 +0000, Tomas Frydrych wrote:
    > > > Joaquine is right; from Win2k MS no longer uses MAC generated uuid's;
    > > > they now fill the GUID bits randomly and call this 'version 4' uuid --
    > > > there is only one problem with this, namely, it is not an uuid, it is
    > > > a random number.
    > > So?
    > So it could happen that there would be two documents with the same uuid,
    > so it won't be unique....

    Add some more junk (probably even two readings of the rng with a random
    length small delay between them) and pass it through sha1.

    Probably it could happen but really, how likely?

    Rui 

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