bad signatures

Ingo Klöcker ingo.kloecker@epost.de
Fri Mar 29 20:29:01 2002


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On Tuesday 26 March 2002 05:01, Lee Roberts wrote:
> Why does everyone say my GPG signature is bad while their PGP
> signature shows good? I did a decrypt/verify of one of my GPG
> messages with PGP and it gives a bad signature also. So far, I don't
> see anything wrong with my GPG configuration.

I found the problem. In full compliance with the OpenPGP specs GPG uses 
v4 signatures by default. GPG has an option to force it to use v3 
signatures. man gpg says:
       --force-v3-sigs
                 OpenPGP states  that  an  implementation  should
                 generate v4 signatures but PGP 5.x recognizes v4
                 signatures only on key  material.   This  option
                 forces v3 signatures for signatures on data.

Obviously PGP 6.5.8 also can't handle v4 signatures.

Solution:
Add 'force-v3-sigs' to your ~/.gnupg/options file.

Regards,
Ingo

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=ZLtP
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