lib/crypto/aes_cmac_128_test.c

   1 /*
   2    AES-CMAC-128 tests
   3    Copyright (C) Stefan Metzmacher 2012
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18 #include "replace.h"
  19 #include "../lib/util/samba_util.h"
  20 #include "../lib/crypto/crypto.h"
  21
  22 struct torture_context;
  23 bool torture_local_crypto_aes_cmac_128(struct torture_context *torture);
  24
  25 /*
  26  This uses the test values from rfc 4493
  27 */
  28 bool torture_local_crypto_aes_cmac_128(struct torture_context *torture)
  29 {
  30         bool ret = true;
  31         uint32_t i;
  32         DATA_BLOB key;
  33         struct {
  34                 DATA_BLOB data;
  35                 DATA_BLOB cmac;
  36         } testarray[5];
  37
  38         TALLOC_CTX *tctx = talloc_new(torture);
  39         if (!tctx) { return false; };
  40
  41         key = strhex_to_data_blob(tctx, "2b7e151628aed2a6abf7158809cf4f3c");
  42
  43         testarray[0].data = data_blob_null;
  44         testarray[0].cmac = strhex_to_data_blob(tctx,
  45                                 "bb1d6929e95937287fa37d129b756746");
  46
  47         testarray[1].data = strhex_to_data_blob(tctx,
  48                                 "6bc1bee22e409f96e93d7e117393172a");
  49         testarray[1].cmac = strhex_to_data_blob(tctx,
  50                                 "070a16b46b4d4144f79bdd9dd04a287c");
  51
  52         testarray[2].data = strhex_to_data_blob(tctx,
  53                                 "6bc1bee22e409f96e93d7e117393172a"
  54                                 "ae2d8a571e03ac9c9eb76fac45af8e51"
  55                                 "30c81c46a35ce411");
  56         testarray[2].cmac = strhex_to_data_blob(tctx,
  57                                 "dfa66747de9ae63030ca32611497c827");
  58
  59         testarray[3].data = strhex_to_data_blob(tctx,
  60                                 "6bc1bee22e409f96e93d7e117393172a"
  61                                 "ae2d8a571e03ac9c9eb76fac45af8e51"
  62                                 "30c81c46a35ce411e5fbc1191a0a52ef"
  63                                 "f69f2445df4f9b17ad2b417be66c3710");
  64         testarray[3].cmac = strhex_to_data_blob(tctx,
  65                                 "51f0bebf7e3b9d92fc49741779363cfe");
  66
  67         ZERO_STRUCT(testarray[4]);
  68
  69         for (i=0; testarray[i].cmac.length != 0; i++) {
  70                 struct aes_cmac_128_context ctx;
  71                 uint8_t cmac[AES_BLOCK_SIZE];
  72                 int e;
  73
  74                 aes_cmac_128_init(&ctx, key.data);
  75                 aes_cmac_128_update(&ctx,
  76                                     testarray[i].data.data,
  77                                     testarray[i].data.length);
  78                 aes_cmac_128_final(&ctx, cmac);
  79
  80                 e = memcmp(testarray[i].cmac.data, cmac, sizeof(cmac));
  81                 if (e != 0) {
  82                         printf("aes_cmac_128 test[%u]: failed\n", i);
  83                         dump_data(0, key.data, key.length);
  84                         dump_data(0, testarray[i].data.data, testarray[i].data.length);
  85                         dump_data(0, testarray[i].cmac.data, testarray[i].cmac.length);
  86                         dump_data(0, cmac, sizeof(cmac));
  87                         ret = false;
  88                 }
  89         }
  90         talloc_free(tctx);
  91         return ret;
  92 }