Help revoking a signature

[Charly Avital]

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 From man gpg:
"To revoke a subkey or a signature, use the --edit command."

Provided you didn't sign that key using the nrsign command, you can  
still revoke your own signature.

It could look like this:

$ gpg --edit-key [key ID]
 >Command revsign [return]

You have signed these user IDs on key [key ID]:
      User name <user at domain_name.com>
    signed by your key [signing key ID] on [signature date]

Create a revocation certificate for this signature? (y/N)

You take it from there. Eventually, you'll be requested to enter the  
passphrase of the key you used for the signature you want to revoke,  
a reason for the revocation, and a comment.

At the end of the process, the Terminal emulator (I am a Mac user),  
or DOS prompt will show the key without your signature. Save it.

To check what you have done:

Type gpg --edit-key [key ID where you have just revoked your signature]
 >Command check [this will display the key's signatures]
there will be a line like:
rev! [your signing key ID] [signature date]  your name  
<user_name at domain_name.com>

*and also* a line showing your original signature.


This proves that the new keyblock contains both your original  
signature and its revocation.

If the key (you signed) is already on the keyservers, you should  
consider to upload the new keyblock to a keyserver too.

A remark for the gpg gurus:
In my gpg system 1.4.2, the reason and comment for the revocation,  
that I entered during the revocation process, do not show. I think  
they should, otherwise why gpg requires to enter that information?


Good luck,
Charly



On Aug 12, 2005, at 9:52 AM, Robin Cooper wrote:

> I feel like this ia a dumb question, but I can't seem to find the
> commands in my docs or the WinPT program.
>
> How can I revoke a signature I have added to someone else's key?
>
> -- 
> robin.cooper at gmail.com
> PGP public key fingerprint: 2EE2 8019 3B18 1720 960F  B57A C9C3  
> 3CB2 86B1 4A38
> Lookup @ pgp.mit.edu: http://tinyurl.com/yv438
> Lookup @ pgpkeys.pca.dfn.de: http://tinyurl.com/87kju
>
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