Vincent Breitmoser <look@my.amazin.horse> writes:
>> - to do this keyservers will have to actually do cryptography
>
> Are you sure? I don't think there's any attack scenario here: If any
> such signature exists, you can't upload the key.

You can strip that signature. If you only consider accidental uploads of
the key that's no problem at all. If you want to *prevent* the key from
being uploaded You'll have to require that *all* self-signatures contain
the annotation and you have to (cryptographly) ensure the key contains
valid self-signatures (so an intruder can't fake a key without the
annotation).

I guess one could even have both (if willing to accept the crypto
requirement on the keyserver) -- it'll be rejected of any such self-sig
exists and also rejected if no other usable self-sig is present.

  Christoph

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