SecurityTests/cspxutils/aesVect/enDecryptRef.c

   1 #include "enDecrypt.h"
   2 #include "rijndaelApi.h"                /* reference */
   3
   4 /*
   5  * encrypt/decrypt using reference AES.
   6  */
   7 CSSM_RETURN encryptDecryptRef(
   8         CSSM_BOOL                       forEncrypt,
   9         uint32                          keySizeInBits,
  10         uint32                          blockSizeInBits,
  11         const uint8                     *key,                           // raw key bytes
  12         const uint8                     *inText,
  13         uint32                          inTextLen,
  14         uint8                           *outText)
  15 {
  16         keyInstance     aesKey;
  17         cipherInstance  aesCipher;
  18         int                     artn;
  19
  20         artn = _makeKey(&aesKey,
  21                 forEncrypt ? DIR_ENCRYPT : DIR_DECRYPT,
  22                 keySizeInBits,
  23                 blockSizeInBits,
  24                 (BYTE *)key);
  25         if(artn <= 0) {
  26                 printf("***AES makeKey returned %d\n", artn);
  27                 return CSSM_ERRCODE_INTERNAL_ERROR;
  28         }
  29         artn = _cipherInit(&aesCipher,
  30                 MODE_ECB,
  31                 blockSizeInBits,
  32                 NULL);
  33         if(artn <= 0) {
  34                 printf("***AES cipherInit returned %d\n", artn);
  35                 return CSSM_ERRCODE_INTERNAL_ERROR;
  36         }
  37         if(forEncrypt) {
  38                 artn = _blockEncrypt(&aesCipher,
  39                         &aesKey,
  40                         (BYTE *)inText,
  41                         inTextLen * 8,
  42                         (BYTE *)outText);
  43         }
  44         else {
  45                 artn = _blockDecrypt(&aesCipher,
  46                         &aesKey,
  47                         (BYTE *)inText,
  48                         inTextLen * 8,
  49                         (BYTE *)outText);
  50         }
  51         if(artn <= 0) {
  52                 printf("***AES Reference encrypt/decrypt returned %d\n", artn);
  53                 return CSSM_ERRCODE_INTERNAL_ERROR;
  54         }
  55         return CSSM_OK;
  56 }