X.509 certificate keyCreationTime value should map to OpenPGP keys
Apparently, some standards were proposed for embedding key creation time in X.509 certificates:
http://www.alvestrand.no/objectid/submissions/1.3.6.1.4.1.3401.8.1.1.html
since the pubkey material and key creation timestamp are all that is needed to reconstruct the OpenPGP key, we should take advantage of this to minimize keyserver queries in the face of X.509 certificates.
if we ever generate X.509 certificates from OpenPGP keys, we should include this information as well.
(from redmine: created on 2010-11-08)
Edited by John Scott