Updating a signature

[Dominik George]

Hi folks,

I would like to updatea signature on a key, that is, add a sig-policy-url
and change the verification level (turn a normal sig into a sig3, that is).

Is this possible? If yes, how?

Please CC me when replying as I am not (yet) subscribed to the list :).
Thank you!

Cheers,
Nik

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PGP-Key: 0xEFDFEB57
Fingerprint: AC8D E64A 5552 2BF8 B0A7 5B53 064E 42A6 EFDF EB57