aes.c

来自「flint库 RSA算法」· C语言 代码 · 共 1,351 行 · 第 1/5 页

0x52860dec, 0xe3c177d0, 0x16b32b6c, 0xb970a999, 0x489411fa, 0x64e94722, 
0x8cfca8c4, 0x3ff0a01a, 0x2c7d56d8, 0x903322ef, 0x4e4987c7, 0xd138d9c1, 
0xa2ca8cfe, 0x0bd49836, 0x81f5a6cf, 0xde7aa528, 0x8eb7da26, 0xbfad3fa4, 
0x9d3a2ce4, 0x9278500d, 0xcc5f6a9b, 0x467e5462, 0x138df6c2, 0xb8d890e8, 
0xf7392e5e, 0xafc382f5, 0x805d9fbe, 0x93d0697c, 0x2dd56fa9, 0x1225cfb3, 
0x99acc83b, 0x7d1810a7, 0x639ce86e, 0xbb3bdb7b, 0x7826cd09, 0x18596ef4, 
0xb79aec01, 0x9a4f83a8, 0x6e95e665, 0xe6ffaa7e, 0xcfbc2108, 0xe815efe6, 
0x9be7bad9, 0x366f4ace, 0x099fead4, 0x7cb029d6, 0xb2a431af, 0x233f2a31, 
0x94a5c630, 0x66a235c0, 0xbc4e7437, 0xca82fca6, 0xd090e0b0, 0xd8a73315, 
0x9804f14a, 0xdaec41f7, 0x50cd7f0e, 0xf691172f, 0xd64d768d, 0xb0ef434d, 
0x4daacc54, 0x0496e4df, 0xb5d19ee3, 0x886a4c1b, 0x1f2cc1b8, 0x5165467f, 
0xea5e9d04, 0x358c015d, 0x7487fa73, 0x410bfb2e, 0x1d67b35a, 0xd2db9252, 
0x5610e933, 0x47d66d13, 0x61d79a8c, 0x0ca1377a, 0x14f8598e, 0x3c13eb89, 
0x27a9ceee, 0xc961b735, 0xe51ce1ed, 0xb1477a3c, 0xdfd29c59, 0x73f2553f, 
0xce141879, 0x37c773bf, 0xcdf753ea, 0xaafd5f5b, 0x6f3ddf14, 0xdb447886, 
0xf3afca81, 0xc468b93e, 0x3424382c, 0x40a3c25f, 0xc31d1672, 0x25e2bc0c, 
0x493c288b, 0x950dff41, 0x01a83971, 0xb30c08de, 0xe4b4d89c, 0xc1566490, 
0x84cb7b61, 0xb632d570, 0x5c6c4874, 0x57b8d042};

static const ULONG InvTable2[256] = {
0xf45150a7, 0x417e5365, 0x171ac3a4, 0x273a965e, 0xab3bcb6b, 0x9d1ff145, 
0xfaacab58, 0xe34b9303, 0x302055fa, 0x76adf66d, 0xcc889176, 0x02f5254c, 
0xe54ffcd7, 0x2ac5d7cb, 0x35268044, 0x62b58fa3, 0xb1de495a, 0xba25671b, 
0xea45980e, 0xfe5de1c0, 0x2fc30275, 0x4c8112f0, 0x468da397, 0xd36bc6f9, 
0x8f03e75f, 0x9215959c, 0x6dbfeb7a, 0x5295da59, 0xbed42d83, 0x7458d321, 
0xe0492969, 0xc98e44c8, 0xc2756a89, 0x8ef47879, 0x58996b3e, 0xb927dd71, 
0xe1beb64f, 0x88f017ad, 0x20c966ac, 0xce7db43a, 0xdf63184a, 0x1ae58231, 
0x51976033, 0x5362457f, 0x64b1e077, 0x6bbb84ae, 0x81fe1ca0, 0x08f9942b, 
0x48705868, 0x458f19fd, 0xde94876c, 0x7b52b7f8, 0x73ab23d3, 0x4b72e202, 
0x1fe3578f, 0x55662aab, 0xebb20728, 0xb52f03c2, 0xc5869a7b, 0x37d3a508, 
0x2830f287, 0xbf23b2a5, 0x0302ba6a, 0x16ed5c82, 0xcf8a2b1c, 0x79a792b4, 
0x07f3f0f2, 0x694ea1e2, 0xda65cdf4, 0x0506d5be, 0x34d11f62, 0xa6c48afe, 
0x2e349d53, 0xf3a2a055, 0x8a0532e1, 0xf6a475eb, 0x830b39ec, 0x6040aaef, 
0x715e069f, 0x6ebd5110, 0x213ef98a, 0xdd963d06, 0x3eddae05, 0xe64d46bd, 
0x5491b58d, 0xc471055d, 0x06046fd4, 0x5060ff15, 0x981924fb, 0xbdd697e9, 
0x4089cc43, 0xd967779e, 0xe8b0bd42, 0x8907888b, 0x19e7385b, 0xc879dbee, 
0x7ca1470a, 0x427ce90f, 0x84f8c91e, 0x00000000, 0x80098386, 0x2b3248ed, 
0x111eac70, 0x5a6c4e72, 0x0efdfbff, 0x850f5638, 0xae3d1ed5, 0x2d362739, 
0x0f0a64d9, 0x5c6821a6, 0x5b9bd154, 0x36243a2e, 0x0a0cb167, 0x57930fe7, 
0xeeb4d296, 0x9b1b9e91, 0xc0804fc5, 0xdc61a220, 0x775a694b, 0x121c161a, 
0x93e20aba, 0xa0c0e52a, 0x223c43e0, 0x1b121d17, 0x090e0b0d, 0x8bf2adc7, 
0xb62db9a8, 0x1e14c8a9, 0xf1578519, 0x75af4c07, 0x99eebbdd, 0x7fa3fd60, 
0x01f79f26, 0x725cbcf5, 0x6644c53b, 0xfb5b347e, 0x438b7629, 0x23cbdcc6, 
0xedb668fc, 0xe4b863f1, 0x31d7cadc, 0x63421085, 0x97134022, 0xc6842011, 
0x4a857d24, 0xbbd2f83d, 0xf9ae1132, 0x29c76da1, 0x9e1d4b2f, 0xb2dcf330, 
0x860dec52, 0xc177d0e3, 0xb32b6c16, 0x70a999b9, 0x9411fa48, 0xe9472264, 
0xfca8c48c, 0xf0a01a3f, 0x7d56d82c, 0x3322ef90, 0x4987c74e, 0x38d9c1d1, 
0xca8cfea2, 0xd498360b, 0xf5a6cf81, 0x7aa528de, 0xb7da268e, 0xad3fa4bf, 
0x3a2ce49d, 0x78500d92, 0x5f6a9bcc, 0x7e546246, 0x8df6c213, 0xd890e8b8, 
0x392e5ef7, 0xc382f5af, 0x5d9fbe80, 0xd0697c93, 0xd56fa92d, 0x25cfb312, 
0xacc83b99, 0x1810a77d, 0x9ce86e63, 0x3bdb7bbb, 0x26cd0978, 0x596ef418, 
0x9aec01b7, 0x4f83a89a, 0x95e6656e, 0xffaa7ee6, 0xbc2108cf, 0x15efe6e8, 
0xe7bad99b, 0x6f4ace36, 0x9fead409, 0xb029d67c, 0xa431afb2, 0x3f2a3123, 
0xa5c63094, 0xa235c066, 0x4e7437bc, 0x82fca6ca, 0x90e0b0d0, 0xa73315d8, 
0x04f14a98, 0xec41f7da, 0xcd7f0e50, 0x91172ff6, 0x4d768dd6, 0xef434db0, 
0xaacc544d, 0x96e4df04, 0xd19ee3b5, 0x6a4c1b88, 0x2cc1b81f, 0x65467f51, 
0x5e9d04ea, 0x8c015d35, 0x87fa7374, 0x0bfb2e41, 0x67b35a1d, 0xdb9252d2, 
0x10e93356, 0xd66d1347, 0xd79a8c61, 0xa1377a0c, 0xf8598e14, 0x13eb893c, 
0xa9ceee27, 0x61b735c9, 0x1ce1ede5, 0x477a3cb1, 0xd29c59df, 0xf2553f73, 
0x141879ce, 0xc773bf37, 0xf753eacd, 0xfd5f5baa, 0x3ddf146f, 0x447886db, 
0xafca81f3, 0x68b93ec4, 0x24382c34, 0xa3c25f40, 0x1d1672c3, 0xe2bc0c25, 
0x3c288b49, 0x0dff4195, 0xa8397101, 0x0c08deb3, 0xb4d89ce4, 0x566490c1, 
0xcb7b6184, 0x32d570b6, 0x6c48745c, 0xb8d04257};

static const ULONG InvTable3[256] = {
0x5150a7f4, 0x7e536541, 0x1ac3a417, 0x3a965e27, 0x3bcb6bab, 0x1ff1459d, 
0xacab58fa, 0x4b9303e3, 0x2055fa30, 0xadf66d76, 0x889176cc, 0xf5254c02, 
0x4ffcd7e5, 0xc5d7cb2a, 0x26804435, 0xb58fa362, 0xde495ab1, 0x25671bba, 
0x45980eea, 0x5de1c0fe, 0xc302752f, 0x8112f04c, 0x8da39746, 0x6bc6f9d3, 
0x03e75f8f, 0x15959c92, 0xbfeb7a6d, 0x95da5952, 0xd42d83be, 0x58d32174, 
0x492969e0, 0x8e44c8c9, 0x756a89c2, 0xf478798e, 0x996b3e58, 0x27dd71b9, 
0xbeb64fe1, 0xf017ad88, 0xc966ac20, 0x7db43ace, 0x63184adf, 0xe582311a, 
0x97603351, 0x62457f53, 0xb1e07764, 0xbb84ae6b, 0xfe1ca081, 0xf9942b08, 
0x70586848, 0x8f19fd45, 0x94876cde, 0x52b7f87b, 0xab23d373, 0x72e2024b, 
0xe3578f1f, 0x662aab55, 0xb20728eb, 0x2f03c2b5, 0x869a7bc5, 0xd3a50837, 
0x30f28728, 0x23b2a5bf, 0x02ba6a03, 0xed5c8216, 0x8a2b1ccf, 0xa792b479, 
0xf3f0f207, 0x4ea1e269, 0x65cdf4da, 0x06d5be05, 0xd11f6234, 0xc48afea6, 
0x349d532e, 0xa2a055f3, 0x0532e18a, 0xa475ebf6, 0x0b39ec83, 0x40aaef60, 
0x5e069f71, 0xbd51106e, 0x3ef98a21, 0x963d06dd, 0xddae053e, 0x4d46bde6, 
0x91b58d54, 0x71055dc4, 0x046fd406, 0x60ff1550, 0x1924fb98, 0xd697e9bd, 
0x89cc4340, 0x67779ed9, 0xb0bd42e8, 0x07888b89, 0xe7385b19, 0x79dbeec8, 
0xa1470a7c, 0x7ce90f42, 0xf8c91e84, 0x00000000, 0x09838680, 0x3248ed2b, 
0x1eac7011, 0x6c4e725a, 0xfdfbff0e, 0x0f563885, 0x3d1ed5ae, 0x3627392d, 
0x0a64d90f, 0x6821a65c, 0x9bd1545b, 0x243a2e36, 0x0cb1670a, 0x930fe757, 
0xb4d296ee, 0x1b9e919b, 0x804fc5c0, 0x61a220dc, 0x5a694b77, 0x1c161a12, 
0xe20aba93, 0xc0e52aa0, 0x3c43e022, 0x121d171b, 0x0e0b0d09, 0xf2adc78b, 
0x2db9a8b6, 0x14c8a91e, 0x578519f1, 0xaf4c0775, 0xeebbdd99, 0xa3fd607f, 
0xf79f2601, 0x5cbcf572, 0x44c53b66, 0x5b347efb, 0x8b762943, 0xcbdcc623, 
0xb668fced, 0xb863f1e4, 0xd7cadc31, 0x42108563, 0x13402297, 0x842011c6, 
0x857d244a, 0xd2f83dbb, 0xae1132f9, 0xc76da129, 0x1d4b2f9e, 0xdcf330b2, 
0x0dec5286, 0x77d0e3c1, 0x2b6c16b3, 0xa999b970, 0x11fa4894, 0x472264e9, 
0xa8c48cfc, 0xa01a3ff0, 0x56d82c7d, 0x22ef9033, 0x87c74e49, 0xd9c1d138, 
0x8cfea2ca, 0x98360bd4, 0xa6cf81f5, 0xa528de7a, 0xda268eb7, 0x3fa4bfad, 
0x2ce49d3a, 0x500d9278, 0x6a9bcc5f, 0x5462467e, 0xf6c2138d, 0x90e8b8d8, 
0x2e5ef739, 0x82f5afc3, 0x9fbe805d, 0x697c93d0, 0x6fa92dd5, 0xcfb31225, 
0xc83b99ac, 0x10a77d18, 0xe86e639c, 0xdb7bbb3b, 0xcd097826, 0x6ef41859, 
0xec01b79a, 0x83a89a4f, 0xe6656e95, 0xaa7ee6ff, 0x2108cfbc, 0xefe6e815, 
0xbad99be7, 0x4ace366f, 0xead4099f, 0x29d67cb0, 0x31afb2a4, 0x2a31233f, 
0xc63094a5, 0x35c066a2, 0x7437bc4e, 0xfca6ca82, 0xe0b0d090, 0x3315d8a7, 
0xf14a9804, 0x41f7daec, 0x7f0e50cd, 0x172ff691, 0x768dd64d, 0x434db0ef, 
0xcc544daa, 0xe4df0496, 0x9ee3b5d1, 0x4c1b886a, 0xc1b81f2c, 0x467f5165, 
0x9d04ea5e, 0x015d358c, 0xfa737487, 0xfb2e410b, 0xb35a1d67, 0x9252d2db, 
0xe9335610, 0x6d1347d6, 0x9a8c61d7, 0x377a0ca1, 0x598e14f8, 0xeb893c13, 
0xceee27a9, 0xb735c961, 0xe1ede51c, 0x7a3cb147, 0x9c59dfd2, 0x553f73f2, 
0x1879ce14, 0x73bf37c7, 0x53eacdf7, 0x5f5baafd, 0xdf146f3d, 0x7886db44, 
0xca81f3af, 0xb93ec468, 0x382c3424, 0xc25f40a3, 0x1672c31d, 0xbc0c25e2, 
0x288b493c, 0xff41950d, 0x397101a8, 0x08deb30c, 0xd89ce4b4, 0x6490c156, 
0x7b6184cb, 0xd570b632, 0x48745c6c, 0xd04257b8};
#endif /* AES_COMPACT */

int IsBigEndian;

#ifdef AES_VERBOSE
int ROUND;
#endif


/******************************************************************************/
/* AES Private Kernel Functions */

inline UCHAR xtime (unsigned int f);
static inline UCHAR xplus1time (unsigned int f);
inline UCHAR polymul (unsigned int f, unsigned int g);
inline void MixColumns (AESSTATE State, int Nb);
inline void InvMixColumns (AESSTATE State, int Nb);
static inline void ShiftRows (AESSTATE State, int Nb);
static inline void InvShiftRows (AESSTATE State, int Nb);
inline void SubBytes (AESSTATE State, int Nb);
inline void InvSubBytes (AESSTATE State, int Nb);
inline void AddRoundKey (AESSTATE State, AESROUNDKEY RoundKey, int Nb);
static inline void Round (AESSTATE State, AESROUNDKEY RoundKey, int Nb);
static inline void FinalRound (AESSTATE State, AESROUNDKEY RoundKey, int Nb);
static inline void InvRound (AESSTATE State, AESROUNDKEY RoundKey, int Nb);
static inline void InvFinalRound (AESSTATE State, AESROUNDKEY RoundKey, int Nb);

/* Functions for purging security critical data */
static inline void ZeroUchar (UCHAR *a);
static inline void Zero2Uchar (UCHAR *a, UCHAR *b);
static inline void Zero4Uchar (UCHAR *a, UCHAR *b, UCHAR *c, UCHAR *d);
static inline void ZeroUlong (ULONG *a);
static inline void Zero2Ulong (ULONG *a, ULONG *b);
static inline void Zero4Ulong (ULONG *a, ULONG *b, ULONG *c, ULONG *d);
static inline void ZeroUcharArray (UCHAR *a, int Len);

/* Test of Endianness */
static void TestEndian(int *IsBigEndian);

#ifdef AES_VERBOSE
static inline void PrintState (char * step, AESSTATE State, int Nb);
#endif /* AES_VERBOSE? */


/******************************************************************************/
/*                                                                            */
/*  Function:   Key Schedule                                                  */
/*  Syntax:     int                                                           */
/*              AESKeySched_l (AESKEYSCHED *CookedKey, AESKEY RawKey,         */
/*                    int KeyLength, int BlkLength, int DFlag, int mode);     */
/*  Input:      AESKEY RawKey (Key vector provided by user)                   */
/*              int KeyLength (Length of user key in bit: 128, 192, 256)      */
/*              int BlkLength (Length of plaintext/cipherblocks in bit)       */
/*              int DFlag (Encipher/decipher mode AES_ENC, AES_DEC)           */
/*              int mode (Mode of operation AES_ECB, AES_CBC)                 */
/*  Output:     AESKEYSCHED *CookedKey (Keyschedule)                          */
/*  Returns:    E_AES_OK if everything is O.K.                                */
/*              E_AES_DIRECTION if DFlag != AES_ENC or AES_DEC                */
/*              E_AES_MODE if mode != AES_ECB or AES_CBC                      */
/*              E_AES_KEYLENGTH if KeyLength != 128, 192 or 256               */
/*                                                                            */
/******************************************************************************/
int __FLINT_API 
AESKeySched_l (AESKEYSCHED *CookedKey, AESKEY RawKey, int KeyLength, 
                                  int BlkLength, int DFlag, int mode)
{
  if ((DFlag != AES_ENC) && (DFlag != AES_DEC))
    {
#if defined AES_VERBOSE
      fprintf (stderr, "AES_ERR_DIRECTION in line %d\n", __LINE__);
#endif
      return AES_ERR_DIRECTION;
    }

  if ((KeyLength != 128) && (KeyLength != 192) && (KeyLength != 256))
    {
#if defined AES_VERBOSE
      fprintf (stderr, "AES_ERR_KEYLENGTH in line %d\n", __LINE__);
#endif
      return AES_ERR_KEYLENGTH;
    }

  if ((BlkLength != 128) && (BlkLength != 192) && (BlkLength != 256))
    {
#ifdef AES_VERBOSE
      fprintf (stderr, "AES_ERR_BLKLENGTH in line %d\n", __LINE__);
#endif
      return AES_ERR_BLKLENGTH;
    }

  switch (DFlag)
    {
      case AES_ENC:
        AESKeyExpansion (CookedKey->ExpandedKey, RawKey, KeyLength, BlkLength);
        break;
      case AES_DEC:
        AESInvKeyExpansion (CookedKey->ExpandedKey, RawKey, KeyLength, BlkLength);
        break;
      default:
        return AES_ERR_MODE;
    }

  CookedKey->mode = mode; 
  CookedKey->KeyLength = KeyLength; 
  CookedKey->BlkLength = BlkLength; 
  CookedKey->DFlag = DFlag; 
  return AES_OK;
}


/******************************************************************************/
/*                                                                            */
/*  Function:   Initialization of AES routines                                */
/*  Syntax:     int                                                           */
/*              AESInit_l (AESWORKSPACE *ws, int mode, int BlkLength,         */
/*                       AESBLOCK IV, AESKEYSCHED *CookedKey, AESKEY RawKey,  */
/*                       int KeyLength, int DFlag);                           */
/*  Input:      int mode (Mode of operation AES_ECB, AES_CBC)                 */
/*              int BlkLength (Length of plaintext/cipherblocks in bit)       */
/*              AESBLOCK IV (Initialization vector for CBC mode operation,    */
/*                           IV may be NULL for ECB mode)                     */
/*              AESKEY RawKey (Key vector provided by user)                   */
/*              int KeyLength (Length of user key in bit: 128, 192, 256)      */
/*              int DFlag (Encipher/decipher mode AES_ENC, AES_DEC)           */
/*  Output:     AESWORKSPACE *ws (Initialized buffer)                         */
/*              AESKEYSCHED *CookedKey (Keyschedule)                          */
/*  Returns:    E_AES_OK if everything is O.K.                                */
/*              E_AES_DIRECTION if DFlag != AES_ENC or AES_DEC                */
/*              E_AES_MODE if mode != AES_ECB or AES_CBC                      */
/*              E_AES_KEYLENGTH if KeyLength != 128, 192 or 256               */
/*              E_AES_BLKLENGTH if BlkLength != 128, 192 or 256               */
/*                                                                            */
/******************************************************************************/
int __FLINT_API
AESInit_l (AESWORKSPACE *ws, int mode, int BlkLength, AESBLOCK IV, 
           AESKEYSCHED *CookedKey, AESKEY RawKey, int KeyLength, int DFlag)
{
  int col, col4, Nb;
  if ((mode != AES_CBC) && (mode != AES_ECB))
    {
#ifdef AES_TEST
      fprintf (stderr, "AES_ERR_MODE in line %d\n", __LINE__);
#endif
      return AES_ERR_MODE;
    }

  if ((BlkLength != 128) && (BlkLength != 192) && (BlkLength != 256))
    {
#ifdef AES_TEST
      fprintf (stderr, "AES_ERR_BLKLENGTH in line %d\n", __LINE__);
#endif
      return AES_ERR_BLKLENGTH;
    }

  if ((KeyLength != 128) && (KeyLength != 192) && (KeyLength != 256))
    {
#ifdef AES_TEST
      fprintf (stderr, "AES_ERR_KEYLENGTH in line %d\n", __LINE__);
#endif
      return AES_ERR_KEYLENGTH;
    }

  if ((DFlag != AES_ENC) && (DFlag != AES_DEC))