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List:       debian-security
Subject:    Re: How to verify debian packages?
From:       Marcin Owsiany <porridge () debian ! org>
Date:       2007-11-06 16:55:18
Message-ID: 20071106165517.GB17150 () beczulka
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On Tue, Nov 06, 2007 at 06:04:40AM -0800, peterer wrote:
> 
> When I manually download debian packages (from
> http://www.debian.org/distrib/packages), how can I verify that they have not
> been tampered with?

Individual packages are not signed, so you would basically need to
manually repeat the process which APT uses for verifying package
integrity:
 - calculate package's MD5 and SHA sums
 - look up the package in the Packages file, check they match, calculate
   the Packages(.gz) file's sums
 - look that one up in a Release file
 - verify Release file's signature: Release.gpg

You can find each of these files simply by browsing the archive tree.

-- 
Marcin Owsiany <porridge@debian.org>             http://marcin.owsiany.pl/
GnuPG: 1024D/60F41216  FE67 DA2D 0ACA FC5E 3F75  D6F6 3A0D 8AA0 60F4 1216


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