Keys clean of all signatures except those made by others I trust

Werner Koch wk at
Thu Jan 25 08:58:37 CET 2018

On Tue, 23 Jan 2018 08:41, gnupg-users at said:

> I would like to clean the key of the spam signatures while preserving
> any signatures made by Alice (or anyone else I have trusted on my
> keyring). Does there exist a command/option to accomplish this in
> gpg2?

I do blacklisting of certain signatures in my gpg.conf.  A blacklist may
look like this

  import-filter drop-sig=   sig_created_d=2015-12-24
  import-filter drop-sig=|| sig_created_d=2016-03-16

and a whitelist would be

  import-filter drop-sig=   sig_created_d<>2015-12-24
  import-filter drop-sig=&& sig_created_d<>2016-03-16

Unfortuntely a property for comparing the key-id or the fingerprint is
not yet available.  Shall I look into this?



Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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