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Subject: Re: Debian bug#191137: Interoperability problem with pgp 2.6.3i
From: Daniel Leidert <daniel.leidert@wgdd.de>
To: 191137-done@bugs.debian.org
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Date: Thu, 16 Jul 2009 18:14:35 +0200
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Am Donnerstag, den 16.07.2009, 14:45 +0200 schrieb Werner Koch:
> On Thu, 16 Jul 2009 12:52, daniel.leidert.spam@gmx.net said:
> Hi,
> 
> First of all PGP 2 is dead.  The only reason it is still used is to
> allow decryption of old IDEA encrypted messages.  PGP2 is not an OpenPGP
> application and thus compatibility with GnuPG is limited.  You can't
> expect that PGP 2 groks OpenPGP messages.
> 
> GnuPG 1.2 is also very old, thus I suggest to close the bug.
> 
> >> > It might be the case that this isn't relevant; I'm investigating adding
> >> > support for v4 keys to the pgp 2.6 codebase and it's a v4 key that's
> >> > using an 8-bit length.  Maybe gnupg is more careful when encoding a v3 key.
> 
> I don't understand the problem.  If someone is going to add v4 support
> to GPG 2, s/he need to add v4 support and that specifies different ways
> of encoding a length.
> 
> The actual problem is a bit more complicated because the computation of
> a fingerprint requires a certain header format and one can't simply use
> the length from the header.  See g10/keyid.c:hash_public_key.
> 
> >> [1] http://bugs.debian.org/191137
> 
> I suggest to close this bug.
> 
> Salam-Shalom,
> 
>    Werner

Given the age of this report and Werners advice, I'm closing this
report. Please feel free to comment this decision and/or reopen your
report if necessary.

Regards, Daniel


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