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| author | Timo Schulz <[email protected]> | 2003-08-18 21:32:19 +0000 |
|---|---|---|
| committer | Timo Schulz <[email protected]> | 2003-08-18 21:32:19 +0000 |
| commit | f9867edfb874a4badf40b1b1ac38ccaa9f36e740 (patch) | |
| tree | a7001545c304676674fa2a43116667de2daffd03 /g10/encode.c | |
| parent | 2003-08-18 Timo Schulz <[email protected]> (diff) | |
| download | gnupg-f9867edfb874a4badf40b1b1ac38ccaa9f36e740.tar.gz gnupg-f9867edfb874a4badf40b1b1ac38ccaa9f36e740.zip | |
* mdc.c (use_mdc): Simplified.
Diffstat (limited to 'g10/encode.c')
| -rw-r--r-- | g10/encode.c | 41 |
1 files changed, 19 insertions, 22 deletions
diff --git a/g10/encode.c b/g10/encode.c index 59daa7474..9fc00183f 100644 --- a/g10/encode.c +++ b/g10/encode.c @@ -113,18 +113,26 @@ encode_sesskey (DEK * dek, DEK ** ret_dek, byte * enckey) /* We try very hard to use a MDC */ static int -use_mdc(PK_LIST pk_list,int algo) +use_mdc (PK_LIST pk_list,int algo) { + byte cipher_algid[4] = { + CIPHER_ALGO_AES, + CIPHER_ALGO_AES192, + CIPHER_ALGO_AES256, + CIPHER_ALGO_TWOFISH + }; + int i; + /* --force-mdc overrides --disable-mdc */ - if(opt.force_mdc) + if (opt.force_mdc) return 1; - if(opt.disable_mdc) + if (opt.disable_mdc) return 0; /* Do the keys really support MDC? */ - if(select_mdc_from_pklist(pk_list)) + if (select_mdc_from_pklist (pk_list)) return 1; /* The keys don't support MDC, so now we do a bit of a hack - if any @@ -132,26 +140,15 @@ use_mdc(PK_LIST pk_list,int algo) can handle a MDC. This is valid for PGP 7, which can handle MDCs though it will not generate them. 2440bis allows this, by the way. */ - - if(select_algo_from_prefs(pk_list,PREFTYPE_SYM, - CIPHER_ALGO_AES,NULL)==CIPHER_ALGO_AES) - return 1; - - if(select_algo_from_prefs(pk_list,PREFTYPE_SYM, - CIPHER_ALGO_AES192,NULL)==CIPHER_ALGO_AES192) - return 1; - - if(select_algo_from_prefs(pk_list,PREFTYPE_SYM, - CIPHER_ALGO_AES256,NULL)==CIPHER_ALGO_AES256) - return 1; - - if(select_algo_from_prefs(pk_list,PREFTYPE_SYM, - CIPHER_ALGO_TWOFISH,NULL)==CIPHER_ALGO_TWOFISH) - return 1; + for (i=0; i < DIM (cipher_algid); i++) + { + if (select_algo_from_prefs (pk_list, PREFTYPE_SYM, cipher_algid[i], + NULL) == cipher_algid[i]) + return 1; + } /* Last try. Use MDC for the modern ciphers. */ - - if( gcry_cipher_get_algo_blklen (algo) != 8) + if (gcry_cipher_get_algo_blklen (algo) != 8) return 1; return 0; /* No MDC */ |