From: Stefan Kangas <stefankangas@gmail.com>
To: Matt Armstrong <matt@rfc20.org>
Cc: 58472@debbugs.gnu.org, Paul Eggert <eggert@cs.ucla.edu>
Subject: bug#58472: [PATCH] Make `message-unique-id' less prone to collisions
Date: Fri, 14 Oct 2022 11:22:08 +0200 [thread overview]
Message-ID: <CADwFkmmDCmHsv52maKWA+4c0ypp86nJUWX0-y3mnfdPVMV0ntQ@mail.gmail.com> (raw)
In-Reply-To: <87h707r8at.fsf@rfc20.org>
Matt Armstrong <matt@rfc20.org> writes:
> Inspired by https://nullprogram.com/blog/2010/05/11/ and the code linked
> there (https://nullprogram.com/download/uuid.el) I came up with this:
That's pretty neat!
> One question: I'm not sure that (random (exp 2 512)) actually gives more
> entropy than a simple call to (random). It depends on Emacs' RNG. Last
> I checked there was code still calling something like rand(), which
> generally not intended for this purpose.
Ouch, indeed. I think we should use the stuff Paul pointed to, which
AFAICT just punts to Gnulib.
next prev parent reply other threads:[~2022-10-14 9:22 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-12 16:07 bug#58472: [PATCH] Make `message-unique-id' less prone to collisions Stefan Kangas
2022-10-12 18:08 ` Paul Eggert
2022-10-13 2:46 ` Stefan Kangas
2022-10-13 4:53 ` Matt Armstrong
2022-10-13 12:10 ` Stefan Kangas
2022-10-13 16:35 ` Matt Armstrong
2022-10-13 16:38 ` Paul Eggert
2022-10-14 9:22 ` Stefan Kangas [this message]
2022-10-13 16:21 ` Paul Eggert
2022-10-14 9:22 ` Stefan Kangas
2022-10-16 7:32 ` Stefan Kangas
2022-10-16 17:05 ` Stefan Kangas
2022-10-16 15:19 ` Matt Armstrong
2022-10-16 16:49 ` Stefan Kangas
2022-10-17 6:17 ` Matt Armstrong
2022-10-17 7:30 ` Paul Eggert
2022-10-17 8:14 ` Stefan Kangas
2022-10-17 8:23 ` Eli Zaretskii
2022-10-17 18:47 ` Matt Armstrong
2022-10-17 8:16 ` Eli Zaretskii
2022-10-17 8:29 ` Lars Ingebrigtsen
2022-10-17 8:34 ` Eli Zaretskii
2022-10-17 9:30 ` Stefan Kangas
2022-10-17 11:22 ` Lars Ingebrigtsen
2022-10-17 15:40 ` Stefan Kangas
2022-11-25 1:26 ` Stefan Kangas
2022-10-17 18:40 ` Matt Armstrong
2022-10-18 1:38 ` Paul Eggert
2022-10-18 14:05 ` Eli Zaretskii
2022-10-13 11:45 ` Lars Ingebrigtsen
2022-10-13 12:10 ` Stefan Kangas
2022-10-13 19:15 ` Lars Ingebrigtsen
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