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gpg: Allow only OCB for AEAD encryption.

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* g10/gpg.c (opts): New option--force-ocb as alias for force-aead.
Turn --aead-algo and --personal-aead-preferences into dummy options.
(build_list_md_test_algo, build_list_aead_algo_name): Remove.
(my_strusage): Remove output of AEAD algos.
(main): Remove code from the --aead options.
* g10/encrypt.c (encrypt_seskey): Make file local.
(use_aead): Remove requirement for rfc4880bis.  Always return
AEAD_ALGO_OCB.
* g10/main.h (DEFAULT_AEAD_ALGO): Removed unused macro.
* g10/misc.c (default_aead_algo): Remove.
* g10/pkclist.c (select_aead_from_pklist): Return AEAD_ALGO_OCB or 0.
(select_algo_from_prefs): Remove personal AEAD algo setting.
* g10/keygen.c (keygen_set_std_prefs): Remove AEAD preference option
parsing.
* g10/options.h (opt): Remove def_aead_algo and personal_aead_prefs.
--

Due to the meanwhile expired patent on OCB there is no more reason for
using EAX.  Thus we forcefully use OCB if the AEAD feature flag is set
on a key.
This commit is contained in:
Werner Koch 2022-10-31 15:51:21 +01:00
parent 03f04dfb9a
commit 5a2cef801d
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
8 changed files with 20 additions and 140 deletions
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2
g10/options.h
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@ -92,7 +92,6 @@ 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 force_aead;
@ -180,7 +179,6 @@ 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;