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Support the not anymore patented IDEA cipher algorithm.

* cipher/idea.c: New.  Take from Libgcrypt master and adjust for
direct use in GnuPG.
* cipher/idea-stub.c: Remove.
* cipher/Makefile.am: Add idea.c and remove idea-stub.c rules.
* configure.ac: Remove idea-stub code.
* g10/gpg.c (check_permissions): Remove code path for ITEM==2.
(main): Make --load-extension a dummy option.
* g10/keygen.c (keygen_set_std_prefs): Include IDEA only in PGP2
compatibility mode.
* g10/misc.c (idea_cipher_warn): Remove.  Also remove all callers.
* g10/seckey-cert.c (do_check): Remove emitting of STATUS_RSA_OR_IDEA.
* g10/status.c (get_status_string): Remove STATUS_RSA_OR_IDEA.
* g10/status.h (STATUS_RSA_OR_IDEA): Remove.

--

To keep the number of actually used algorithms low, we support IDEA
only in a basically read-only way (unless --pgp2 is used during key
generation).  It does not make sense to suggest the use of this old 64
bit blocksize algorithm.  However, there is old data available where
it might be helpful to have IDEA available.
This commit is contained in:
Werner Koch 2012-11-08 13:25:02 +01:00
parent c3a5448379
commit b1eac93431
18 changed files with 575 additions and 452 deletions

View file

@ -85,12 +85,6 @@ int openpgp_pk_test_algo( int algo, unsigned int usage_flags );
int openpgp_pk_algo_usage ( int algo );
int openpgp_md_test_algo( int algo );
#ifdef USE_IDEA
void idea_cipher_warn( int show );
#else
#define idea_cipher_warn(a)
#endif
void md5_digest_warn (int show);
void not_in_gpg1_notice (void);
@ -224,7 +218,7 @@ void import_print_stats (void *hd);
int collapse_uids( KBNODE *keyblock );
int auto_create_card_key_stub ( const char *serialnostr,
int auto_create_card_key_stub ( const char *serialnostr,
const unsigned char *fpr1,
const unsigned char *fpr2,
const unsigned char *fpr3);