* sm/call-dirmngr.c (gpgsm_dirmngr_lookup): Add optional arg URL and
adjust all callers.
* sm/certchain.c (oidstr_caIssuers): New.
(struct find_up_store_certs_s): Add additional fields.
(find_up_store_certs_cb): Store the fingerprint.
(find_up_via_auth_info_access): New.
(find_up): Try the AIA URI first.
--
Note that --auto-issuer-key-retrieve is required to use that.
GnuPG-bug-id: 4898
Signed-off-by: Werner Koch <wk@gnupg.org>