Re: [openpgp] Key Superseded signature type

"Neal H. Walfield" <neal@walfield.org> Sun, 04 December 2022 12:21 UTC

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Date: Sun, 04 Dec 2022 13:21:30 +0100
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From: "Neal H. Walfield" <neal@walfield.org>
To: Aron Wussler <aron@wussler.it>
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Subject: Re: [openpgp] Key Superseded signature type
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On Sat, 03 Dec 2022 17:00:13 +0100,
Aron Wussler wrote:
> > As I commented in the MR, I wonder if a new Reason for Revocation
> > type, `Key is superseded by`, which takes a fingerprint and a human
> > readable string, would be better than a new signature type.
> 
> I think this approach does not play well with legacy implementations, as they would consider the key revoked.

That's a good point.  Then perhaps 'Key is superseded' plus a
subpacket or notation to indicate the new key would be better.  Note
'Key is superseded' is a type of soft revocation:

   If a key has been revoked because of a compromise, all signatures
   created by that key are suspect.  However, if it was merely
   superseded or retired, old signatures are still valid.

Neal