gpg: Add option and preference framework for AEAD.

* common/openpgpdefs.h (aead_algo_t): New.
(SIGSUBPKT_PREF_AEAD): New.
* g10/gpg.c (oAEADAlgo, oPersonalAEADPreferences): New.
(opts): New options --aead-algo and --personal-aead-preferences.
(set_compliance_option): Clar aead algo.
(main): Parse and check the new options
* g10/options.h (struct opt): Add fields def_aead_algo and
personal_aead_prefs.
* g10/packet.h (PREFTYPE_AEAD): New enum value.
(PKT_user_id): Add field flags.aead.
(PKT_public_key): Add field flags.aead.
* g10/pkclist.c (select_algo_from_prefs): Support PREFTYPE_AEAD.
* g10/getkey.c (fixup_uidnode): Set AEAD flag.
(merge_selfsigs): Ditto.
* g10/kbnode.c (dump_kbnode): Show aead flag.
* g10/keyedit.c (show_prefs): Ditto.
(show_key_with_all_names_colon): Ditto.
* g10/keygen.c (aead_presf, n_aead_prefs): New vars.
(set_one_pref): Suppport PREFTYPE_AEAD.
(keygen_set_std_prefs): Parse AEAD preferences.
(keygen_get_std_prefs): Ditto.
(add_feature_aead): New.
(keygen_upd_std_prefs): Call that and build AEAD pref  packet.
* g10/main.h (DEFAULT_AEAD_ALGO): New const.
* g10/misc.c (openpgp_aead_test_algo): New.
(openpgp_aead_algo_name): New.
(string_to_aead_algo): New.
(default_aead_algo): New.
--

This is only used in --rfc4880bis mode and not really tested.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/g10/options.h b/g10/options.h
index 61f7403be..6ad103709 100644
--- a/g10/options.h
+++ b/g10/options.h
@@ -92,6 +92,7 @@ struct
   int no_armor;
   int list_packets; /* Option --list-packets active.  */
   int def_cipher_algo;
+  int def_aead_algo;
   int force_mdc;
   int disable_mdc;
   int def_digest_algo;
@@ -177,6 +178,7 @@ struct
   const char *def_preference_list;
   const char *def_keyserver_url;
   prefitem_t *personal_cipher_prefs;
+  prefitem_t *personal_aead_prefs;
   prefitem_t *personal_digest_prefs;
   prefitem_t *personal_compress_prefs;
   struct weakhash *weak_digests;