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Date: Wed, 25 Sep 2013 11:45:38 +0200
From: Ludwig Nussel <>
Subject: Re: Reproducible Builds for Fedora

Dhiru Kholia wrote:
> I have been working on having Reproducible Builds in Fedora for some
> time.
> At this point, I think I have something demoable. Ensuring Reproducible
> Builds is a big task and I want your feedback, ideas, code and support.

In openSUSE we have reproducible binaries to a certain extend. That
project was started some years ago with different (non-security)
intentions. Since the build service rebuilds packages automatically
if any depending package changes, a way was needed to avoid publishing new
rpms if the build result result didn't actually change. So there are
now some scripts that automatically run at the of a new build and
determine with some heuristics whether the new rpms match the old
rpms¹. You can see the output of that script in every build log in


  (o_   Ludwig Nussel
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)

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