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Re: Uses too much entropy (Debian Bug #343085)
From: |
Simon Josefsson |
Subject: |
Re: Uses too much entropy (Debian Bug #343085) |
Date: |
Fri, 04 Jan 2008 17:08:03 +0100 |
User-agent: |
Gnus/5.110007 (No Gnus v0.7) Emacs/22.1 (gnu/linux) |
Werner Koch <address@hidden> writes:
>> Another solution, how about to refuse to give out entropy to processes
>> not listed in a world-readable but root-writable file
>> /etc/libgcryptd.conf file?
>
> Well it is experimental and I had similar ideas. If I remember right I
> implemented the daemon thing when we first talked about the exim problem
> or to help other short-living processes.
So I guess the question is for the exim people: which approach do you
prefer?
1) Require that the system run the libgcrypt daemon to maintain a
global randomness pool. (Or if the user uses a kernel that doesn't
have PRNG saturation problems that Linux does... anyone knows if
FreeBSD or GNU/Hurd have similar issues?)
2) To make exim link to and call libgcrypt's functions to read and
update a random seed file instead?
3) continue discussing other solutions...
For simplicity and non-experimentalness, I would recommend 2). I can
assist in implementing this in exim, if that would help. We'd
definitely need a good example of how to do this in the gnutls manual
anyway.
/Simon
- Re: [patch] Re: Bug#448775: Uses too much entropy (Debian Bug #343085), (continued)
Re: Uses too much entropy (Debian Bug #343085), Matthias Urlichs, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Nikos Mavrogiannopoulos, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Matthias Urlichs, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Simon Josefsson, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Werner Koch, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Simon Josefsson, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Werner Koch, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085),
Simon Josefsson <=
- Re: Uses too much entropy (Debian Bug #343085), Andreas Metzler, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Simon Josefsson, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Andreas Metzler, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Simon Josefsson, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Marc Haber, 2008/01/04
- Re: Uses too much entropy (Debian Bug #343085), Andreas Metzler, 2008/01/05
Re: Uses too much entropy (Debian Bug #343085), Andreas Metzler, 2008/01/05