/* aes.c
 *
 * Copyright (C) 2006-2015 wolfSSL Inc.
 *
 * This file is part of wolfSSL. (formerly known as CyaSSL)
 *
 * wolfSSL is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * wolfSSL is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifdef HAVE_CONFIG_H
    #include <config.h>
#endif

#include <wolfssl/wolfcrypt/settings.h>

#ifndef NO_AES

#include <wolfssl/wolfcrypt/aes.h>

#ifdef HAVE_FIPS
int wc_AesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv,
                          int dir)
{
    return AesSetKey_fips(aes, key, len, iv, dir);
}


int wc_AesSetIV(Aes* aes, const byte* iv)
{
    return AesSetIV_fips(aes, iv);
}


int wc_AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
{
    return AesCbcEncrypt_fips(aes, out, in, sz);
}


int wc_AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
{
    return AesCbcDecrypt_fips(aes, out, in, sz);
}


int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
                                 const byte* key, word32 keySz, const byte* iv)
{
    return AesCbcDecryptWithKey(out, in, inSz, key, keySz, iv);
}


/* AES-CTR */
#ifdef WOLFSSL_AES_COUNTER
void wc_AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
{
    AesCtrEncrypt(aes, out, in, sz);
}
#endif

/* AES-DIRECT */
#if defined(WOLFSSL_AES_DIRECT)
void wc_AesEncryptDirect(Aes* aes, byte* out, const byte* in)
{
    AesEncryptDirect(aes, out, in);
}


void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in)
{
    AesDecryptDirect(aes, out, in);
}


int wc_AesSetKeyDirect(Aes* aes, const byte* key, word32 len,
                                const byte* iv, int dir)
{
    return AesSetKeyDirect(aes, key, len, iv, dir);
}
#endif


#ifdef HAVE_AESGCM
int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len)
{
    return AesGcmSetKey_fips(aes, key, len);
}


int wc_AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz,
                              const byte* iv, word32 ivSz,
                              byte* authTag, word32 authTagSz,
                              const byte* authIn, word32 authInSz)
{
    return AesGcmEncrypt_fips(aes, out, in, sz, iv, ivSz, authTag, authTagSz,
                              authIn, authInSz);
}


int wc_AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
                              const byte* iv, word32 ivSz,
                              const byte* authTag, word32 authTagSz,
                              const byte* authIn, word32 authInSz)
{
    return AesGcmDecrypt_fips(aes, out, in, sz, iv, ivSz, authTag, authTagSz,
                              authIn, authInSz);
}


int wc_GmacSetKey(Gmac* gmac, const byte* key, word32 len)
{
    return GmacSetKey(gmac, key, len);
}


int wc_GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz,
                              const byte* authIn, word32 authInSz,
                              byte* authTag, word32 authTagSz)
{
    return GmacUpdate(gmac, iv, ivSz, authIn, authInSz,
                      authTag, authTagSz);
}

#endif /* HAVE_AESGCM */
#ifdef HAVE_AESCCM
void wc_AesCcmSetKey(Aes* aes, const byte* key, word32 keySz)
{
    AesCcmSetKey(aes, key, keySz);
}


void wc_AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
                              const byte* nonce, word32 nonceSz,
                              byte* authTag, word32 authTagSz,
                              const byte* authIn, word32 authInSz)
{
    AesCcmEncrypt(aes, out, in, inSz, nonce, nonceSz, authTag, authTagSz,
                  authIn, authInSz);
}


int  wc_AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
                              const byte* nonce, word32 nonceSz,
                              const byte* authTag, word32 authTagSz,
                              const byte* authIn, word32 authInSz)
{
    return AesCcmDecrypt(aes, out, in, inSz, nonce, nonceSz, authTag, authTagSz,
                         authIn, authInSz);
}
#endif /* HAVE_AESCCM */

#ifdef HAVE_CAVIUM
int  wc_AesInitCavium(Aes* aes, int i)
{
    return AesInitCavium(aes, i);
}


void wc_AesFreeCavium(Aes* aes)
{
    AesFreeCavium(aes);
}
#endif
#else /* HAVE_FIPS */
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/wolfcrypt/logging.h>
#ifdef NO_INLINE
    #include <wolfssl/wolfcrypt/misc.h>
#else
    #include <wolfcrypt/src/misc.c>
#endif
#ifdef DEBUG_AESNI
    #include <stdio.h>
#endif


#ifdef _MSC_VER
    /* 4127 warning constant while(1)  */
    #pragma warning(disable: 4127)
#endif


#if defined(STM32F2_CRYPTO)
     /* STM32F2 hardware AES support for CBC, CTR modes through the STM32F2
      * Standard Peripheral Library. Documentation located in STM32F2xx
      * Standard Peripheral Library document (See note in README).
      * NOTE: no support for AES-GCM/CCM/Direct */
    #include "stm32f2xx.h"
    #include "stm32f2xx_cryp.h"
#elif defined(HAVE_COLDFIRE_SEC)
    /* Freescale Coldfire SEC support for CBC mode.
     * NOTE: no support for AES-CTR/GCM/CCM/Direct */
    #include <wolfssl/wolfcrypt/types.h>
    #include "sec.h"
    #include "mcf5475_sec.h"
    #include "mcf5475_siu.h"
#elif defined(FREESCALE_MMCAU)
    /* Freescale mmCAU hardware AES support for Direct, CBC, CCM, GCM modes
     * through the CAU/mmCAU library. Documentation located in
     * ColdFire/ColdFire+ CAU and Kinetis mmCAU Software Library User
     * Guide (See note in README).
     * NOTE: no support for AES-CTR */
    #include "cau_api.h"
#elif defined(WOLFSSL_PIC32MZ_CRYPT)
    /* NOTE: no support for AES-CCM/Direct */
    #define DEBUG_WOLFSSL
    #include "wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h"
#elif defined(HAVE_CAVIUM)
    #include <wolfssl/wolfcrypt/logging.h>
    #include "cavium_common.h"

    /* still leave SW crypto available */
    #define NEED_AES_TABLES

    static int  wc_AesCaviumSetKey(Aes* aes, const byte* key, word32 length,
                                const byte* iv);
    static int  wc_AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in,
                                    word32 length);
    static int  wc_AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in,
                                    word32 length);
#else
    /* using CTaoCrypt software AES implementation */
    #define NEED_AES_TABLES
#endif /* STM32F2_CRYPTO */


#ifdef NEED_AES_TABLES

static const word32 rcon[] = {
    0x01000000, 0x02000000, 0x04000000, 0x08000000,
    0x10000000, 0x20000000, 0x40000000, 0x80000000,
    0x1B000000, 0x36000000,
    /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
};

static const word32 Te[5][256] = {
{
    0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU,
    0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U,
    0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU,
    0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU,
    0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U,
    0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU,
    0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU,
    0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU,
    0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU,
    0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU,
    0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U,
    0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU,
    0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU,
    0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U,
    0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU,
    0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU,
    0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU,
    0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU,
    0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU,
    0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U,
    0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU,
    0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU,
    0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU,
    0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU,
    0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U,
    0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U,
    0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U,
    0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U,
    0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU,
    0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U,
    0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U,
    0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU,
    0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU,
    0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U,
    0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U,
    0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U,
    0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU,
    0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U,
    0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU,
    0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U,
    0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU,
    0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U,
    0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U,
    0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU,
    0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U,
    0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U,
    0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U,
    0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U,
    0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U,
    0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U,
    0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U,
    0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U,
    0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU,
    0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U,
    0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U,
    0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U,
    0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U,
    0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U,
    0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U,
    0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU,
    0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U,
    0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U,
    0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U,
    0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU,
},
{
    0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU,
    0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U,
    0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU,
    0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U,
    0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU,
    0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U,
    0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU,
    0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U,
    0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U,
    0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU,
    0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U,
    0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U,
    0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U,
    0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU,
    0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U,
    0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U,
    0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU,
    0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U,
    0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U,
    0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U,
    0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU,
    0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU,
    0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U,
    0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU,
    0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU,
    0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U,
    0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU,
    0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U,
    0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU,
    0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U,
    0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U,
    0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U,
    0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU,
    0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U,
    0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU,
    0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U,
    0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU,
    0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U,
    0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U,
    0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU,
    0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU,
    0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU,
    0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U,
    0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U,
    0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU,
    0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U,
    0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU,
    0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U,
    0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU,
    0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U,
    0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU,
    0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU,
    0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U,
    0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU,
    0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U,
    0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU,
    0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U,
    0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U,
    0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U,
    0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU,
    0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU,
    0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U,
    0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU,
    0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U,
},
{
    0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU,
    0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U,
    0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU,
    0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U,
    0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU,
    0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U,
    0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU,
    0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U,
    0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U,
    0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU,
    0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U,
    0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U,
    0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U,
    0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU,
    0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U,
    0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U,
    0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU,
    0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U,
    0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U,
    0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U,
    0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU,
    0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU,
    0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U,
    0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU,
    0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU,
    0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U,
    0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU,
    0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U,
    0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU,
    0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U,
    0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U,
    0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U,
    0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU,
    0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U,
    0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU,
    0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U,
    0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU,
    0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U,
    0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U,
    0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU,
    0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU,
    0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU,
    0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U,
    0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U,
    0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU,
    0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U,
    0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU,
    0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U,
    0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU,
    0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U,
    0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU,
    0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU,
    0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U,
    0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU,
    0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U,
    0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU,
    0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U,
    0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U,
    0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U,
    0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU,
    0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU,
    0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U,
    0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU,
    0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U,
},
{
    0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U,
    0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U,
    0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U,
    0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU,
    0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU,
    0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU,
    0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U,
    0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU,
    0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU,
    0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U,
    0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U,
    0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU,
    0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU,
    0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU,
    0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU,
    0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU,
    0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U,
    0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU,
    0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU,
    0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U,
    0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U,
    0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U,
    0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U,
    0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U,
    0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU,
    0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U,
    0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU,
    0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU,
    0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U,
    0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U,
    0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U,
    0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU,
    0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U,
    0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU,
    0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU,
    0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U,
    0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U,
    0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU,
    0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U,
    0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU,
    0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U,
    0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U,
    0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U,
    0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U,
    0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU,
    0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U,
    0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU,
    0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U,
    0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU,
    0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U,
    0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU,
    0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU,
    0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU,
    0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU,
    0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U,
    0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U,
    0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U,
    0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U,
    0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U,
    0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U,
    0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU,
    0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U,
    0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU,
    0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU,
},
{
    0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU,
    0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U,
    0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU,
    0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U,
    0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU,
    0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U,
    0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU,
    0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U,
    0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U,
    0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU,
    0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U,
    0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U,
    0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U,
    0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU,
    0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U,
    0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U,
    0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU,
    0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U,
    0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U,
    0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U,
    0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU,
    0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU,
    0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U,
    0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU,
    0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU,
    0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U,
    0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU,
    0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U,
    0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU,
    0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U,
    0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U,
    0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U,
    0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU,
    0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U,
    0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU,
    0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U,
    0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU,
    0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U,
    0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U,
    0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU,
    0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU,
    0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU,
    0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U,
    0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U,
    0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU,
    0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U,
    0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU,
    0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U,
    0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU,
    0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U,
    0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU,
    0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU,
    0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U,
    0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU,
    0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U,
    0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU,
    0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U,
    0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U,
    0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U,
    0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU,
    0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU,
    0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U,
    0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU,
    0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U,
}
};

static const word32 Td[5][256] = {
{
    0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U,
    0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U,
    0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U,
    0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU,
    0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U,
    0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U,
    0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU,
    0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U,
    0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU,
    0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U,
    0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U,
    0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U,
    0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U,
    0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU,
    0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U,
    0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU,
    0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U,
    0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU,
    0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U,
    0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U,
    0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U,
    0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU,
    0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U,
    0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU,
    0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U,
    0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU,
    0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U,
    0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU,
    0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU,
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    0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU,
    0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U,
    0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U,
    0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U,
    0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U,
    0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U,
    0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U,
    0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU,
    0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU,
    0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU,
    0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU,
    0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U,
    0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U,
    0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U,
    0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU,
    0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U,
    0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U,
},
{
    0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U,
    0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U,
    0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU,
    0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU,
    0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U,
    0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U,
    0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U,
    0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU,
    0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U,
    0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU,
    0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU,
    0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU,
    0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U,
    0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U,
    0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U,
    0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U,
    0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U,
    0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U,
    0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU,
    0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U,
    0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U,
    0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU,
    0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U,
    0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U,
    0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U,
    0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU,
    0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U,
    0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U,
    0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU,
    0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U,
    0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U,
    0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU,
    0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U,
    0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU,
    0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU,
    0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U,
    0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U,
    0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U,
    0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U,
    0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU,
    0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U,
    0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U,
    0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU,
    0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU,
    0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU,
    0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U,
    0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU,
    0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U,
    0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U,
    0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U,
    0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U,
    0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU,
    0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U,
    0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU,
    0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU,
    0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU,
    0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU,
    0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U,
    0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU,
    0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U,
    0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU,
    0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U,
    0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U,
    0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU,
}
};

#define GETBYTE(x, y) (word32)((byte)((x) >> (8 * (y))))

#ifdef WOLFSSL_AESNI

/* Each platform needs to query info type 1 from cpuid to see if aesni is
 * supported. Also, let's setup a macro for proper linkage w/o ABI conflicts
 */

#ifndef _MSC_VER

    #define cpuid(reg, func)\
        __asm__ __volatile__ ("cpuid":\
             "=a" (reg[0]), "=b" (reg[1]), "=c" (reg[2]), "=d" (reg[3]) :\
             "a" (func));

    #define XASM_LINK(f) asm(f)
#else

    #include <intrin.h>
    #define cpuid(a,b) __cpuid((int*)a,b)

    #define XASM_LINK(f)

#endif /* _MSC_VER */


static int Check_CPU_support_AES(void)
{
    unsigned int reg[4];  /* put a,b,c,d into 0,1,2,3 */
    cpuid(reg, 1);        /* query info 1 */

    if (reg[2] & 0x2000000)
        return 1;

    return 0;
}

static int checkAESNI = 0;
static int haveAESNI  = 0;


/* tell C compiler these are asm functions in case any mix up of ABI underscore
   prefix between clang/gcc/llvm etc */
void AES_CBC_encrypt(const unsigned char* in, unsigned char* out,
                     unsigned char* ivec, unsigned long length,
                     const unsigned char* KS, int nr)
                     XASM_LINK("AES_CBC_encrypt");


void AES_CBC_decrypt(const unsigned char* in, unsigned char* out,
                     unsigned char* ivec, unsigned long length,
                     const unsigned char* KS, int nr)
                     XASM_LINK("AES_CBC_decrypt");

void AES_ECB_encrypt(const unsigned char* in, unsigned char* out,
                     unsigned long length, const unsigned char* KS, int nr)
                     XASM_LINK("AES_ECB_encrypt");


void AES_ECB_decrypt(const unsigned char* in, unsigned char* out,
                     unsigned long length, const unsigned char* KS, int nr)
                     XASM_LINK("AES_ECB_decrypt");

void AES_128_Key_Expansion(const unsigned char* userkey,
                           unsigned char* key_schedule)
                           XASM_LINK("AES_128_Key_Expansion");

void AES_192_Key_Expansion(const unsigned char* userkey,
                           unsigned char* key_schedule)
                           XASM_LINK("AES_192_Key_Expansion");

void AES_256_Key_Expansion(const unsigned char* userkey,
                           unsigned char* key_schedule)
                           XASM_LINK("AES_256_Key_Expansion");


static int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
                               Aes* aes)
{
    if (!userKey || !aes)
        return BAD_FUNC_ARG;

    if (bits == 128) {
       AES_128_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 10;
       return 0;
    }
    else if (bits == 192) {
       AES_192_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 12;
       return 0;
    }
    else if (bits == 256) {
       AES_256_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 14;
       return 0;
    }
    return BAD_FUNC_ARG;
}


static int AES_set_decrypt_key(const unsigned char* userKey, const int bits,
                               Aes* aes)
{
    int nr;
    Aes temp_key;
    __m128i *Key_Schedule = (__m128i*)aes->key;
    __m128i *Temp_Key_Schedule = (__m128i*)temp_key.key;

    if (!userKey || !aes)
        return BAD_FUNC_ARG;

    if (AES_set_encrypt_key(userKey,bits,&temp_key) == BAD_FUNC_ARG)
        return BAD_FUNC_ARG;

    nr = temp_key.rounds;
    aes->rounds = nr;

    Key_Schedule[nr] = Temp_Key_Schedule[0];
    Key_Schedule[nr-1] = _mm_aesimc_si128(Temp_Key_Schedule[1]);
    Key_Schedule[nr-2] = _mm_aesimc_si128(Temp_Key_Schedule[2]);
    Key_Schedule[nr-3] = _mm_aesimc_si128(Temp_Key_Schedule[3]);
    Key_Schedule[nr-4] = _mm_aesimc_si128(Temp_Key_Schedule[4]);
    Key_Schedule[nr-5] = _mm_aesimc_si128(Temp_Key_Schedule[5]);
    Key_Schedule[nr-6] = _mm_aesimc_si128(Temp_Key_Schedule[6]);
    Key_Schedule[nr-7] = _mm_aesimc_si128(Temp_Key_Schedule[7]);
    Key_Schedule[nr-8] = _mm_aesimc_si128(Temp_Key_Schedule[8]);
    Key_Schedule[nr-9] = _mm_aesimc_si128(Temp_Key_Schedule[9]);

    if(nr>10) {
        Key_Schedule[nr-10] = _mm_aesimc_si128(Temp_Key_Schedule[10]);
        Key_Schedule[nr-11] = _mm_aesimc_si128(Temp_Key_Schedule[11]);
    }

    if(nr>12) {
        Key_Schedule[nr-12] = _mm_aesimc_si128(Temp_Key_Schedule[12]);
        Key_Schedule[nr-13] = _mm_aesimc_si128(Temp_Key_Schedule[13]);
    }

    Key_Schedule[0] = Temp_Key_Schedule[nr];

    return 0;
}



#endif /* WOLFSSL_AESNI */


static void wc_AesEncrypt(Aes* aes, const byte* inBlock, byte* outBlock)
{
    word32 s0, s1, s2, s3;
    word32 t0, t1, t2, t3;
    word32 r = aes->rounds >> 1;

    const word32* rk = aes->key;
    if (r > 7 || r == 0) {
        WOLFSSL_MSG("AesEncrypt encountered improper key, set it up");
        return;  /* stop instead of segfaulting, set up your keys! */
    }
#ifdef WOLFSSL_AESNI
    if (haveAESNI && aes->use_aesni) {
        #ifdef DEBUG_AESNI
            printf("about to aes encrypt\n");
            printf("in  = %p\n", inBlock);
            printf("out = %p\n", outBlock);
            printf("aes->key = %p\n", aes->key);
            printf("aes->rounds = %d\n", aes->rounds);
            printf("sz = %d\n", AES_BLOCK_SIZE);
        #endif

        /* check alignment, decrypt doesn't need alignment */
        if ((wolfssl_word)inBlock % 16) {
        #ifndef NO_WOLFSSL_ALLOC_ALIGN
            byte* tmp = (byte*)XMALLOC(AES_BLOCK_SIZE, NULL,
                                                      DYNAMIC_TYPE_TMP_BUFFER);
            if (tmp == NULL) return;

            XMEMCPY(tmp, inBlock, AES_BLOCK_SIZE);
            AES_ECB_encrypt(tmp, tmp, AES_BLOCK_SIZE, (byte*)aes->key,
                            aes->rounds);
            XMEMCPY(outBlock, tmp, AES_BLOCK_SIZE);
            XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER);
            return;
        #else
            WOLFSSL_MSG("AES-ECB encrypt with bad alignment");
            return;
        #endif
        }

        AES_ECB_encrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key,
                        aes->rounds);

        return;
    }
    else {
        #ifdef DEBUG_AESNI
            printf("Skipping AES-NI\n");
        #endif
    }
#endif

    /*
     * map byte array block to cipher state
     * and add initial round key:
     */
    XMEMCPY(&s0, inBlock,                  sizeof(s0));
    XMEMCPY(&s1, inBlock + sizeof(s0),     sizeof(s1));
    XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2));
    XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3));

    #ifdef LITTLE_ENDIAN_ORDER
        s0 = ByteReverseWord32(s0);
        s1 = ByteReverseWord32(s1);
        s2 = ByteReverseWord32(s2);
        s3 = ByteReverseWord32(s3);
    #endif

    s0 ^= rk[0];
    s1 ^= rk[1];
    s2 ^= rk[2];
    s3 ^= rk[3];

    /*
     * Nr - 1 full rounds:
     */

    for (;;) {
        t0 =
            Te[0][GETBYTE(s0, 3)]  ^
            Te[1][GETBYTE(s1, 2)]  ^
            Te[2][GETBYTE(s2, 1)]  ^
            Te[3][GETBYTE(s3, 0)]  ^
            rk[4];
        t1 =
            Te[0][GETBYTE(s1, 3)]  ^
            Te[1][GETBYTE(s2, 2)]  ^
            Te[2][GETBYTE(s3, 1)]  ^
            Te[3][GETBYTE(s0, 0)]  ^
            rk[5];
        t2 =
            Te[0][GETBYTE(s2, 3)] ^
            Te[1][GETBYTE(s3, 2)]  ^
            Te[2][GETBYTE(s0, 1)]  ^
            Te[3][GETBYTE(s1, 0)]  ^
            rk[6];
        t3 =
            Te[0][GETBYTE(s3, 3)] ^
            Te[1][GETBYTE(s0, 2)]  ^
            Te[2][GETBYTE(s1, 1)]  ^
            Te[3][GETBYTE(s2, 0)]  ^
            rk[7];

        rk += 8;
        if (--r == 0) {
            break;
        }

        s0 =
            Te[0][GETBYTE(t0, 3)] ^
            Te[1][GETBYTE(t1, 2)] ^
            Te[2][GETBYTE(t2, 1)] ^
            Te[3][GETBYTE(t3, 0)] ^
            rk[0];
        s1 =
            Te[0][GETBYTE(t1, 3)] ^
            Te[1][GETBYTE(t2, 2)] ^
            Te[2][GETBYTE(t3, 1)] ^
            Te[3][GETBYTE(t0, 0)] ^
            rk[1];
        s2 =
            Te[0][GETBYTE(t2, 3)] ^
            Te[1][GETBYTE(t3, 2)] ^
            Te[2][GETBYTE(t0, 1)] ^
            Te[3][GETBYTE(t1, 0)] ^
            rk[2];
        s3 =
            Te[0][GETBYTE(t3, 3)] ^
            Te[1][GETBYTE(t0, 2)] ^
            Te[2][GETBYTE(t1, 1)] ^
            Te[3][GETBYTE(t2, 0)] ^
            rk[3];
    }

    /*
     * apply last round and
     * map cipher state to byte array block:
     */

    s0 =
        (Te[4][GETBYTE(t0, 3)] & 0xff000000) ^
        (Te[4][GETBYTE(t1, 2)] & 0x00ff0000) ^
        (Te[4][GETBYTE(t2, 1)] & 0x0000ff00) ^
        (Te[4][GETBYTE(t3, 0)] & 0x000000ff) ^
        rk[0];
    s1 =
        (Te[4][GETBYTE(t1, 3)] & 0xff000000) ^
        (Te[4][GETBYTE(t2, 2)] & 0x00ff0000) ^
        (Te[4][GETBYTE(t3, 1)] & 0x0000ff00) ^
        (Te[4][GETBYTE(t0, 0)] & 0x000000ff) ^
        rk[1];
    s2 =
        (Te[4][GETBYTE(t2, 3)] & 0xff000000) ^
        (Te[4][GETBYTE(t3, 2)] & 0x00ff0000) ^
        (Te[4][GETBYTE(t0, 1)] & 0x0000ff00) ^
        (Te[4][GETBYTE(t1, 0)] & 0x000000ff) ^
        rk[2];
    s3 =
        (Te[4][GETBYTE(t3, 3)] & 0xff000000) ^
        (Te[4][GETBYTE(t0, 2)] & 0x00ff0000) ^
        (Te[4][GETBYTE(t1, 1)] & 0x0000ff00) ^
        (Te[4][GETBYTE(t2, 0)] & 0x000000ff) ^
        rk[3];

    /* write out */
    #ifdef LITTLE_ENDIAN_ORDER
        s0 = ByteReverseWord32(s0);
        s1 = ByteReverseWord32(s1);
        s2 = ByteReverseWord32(s2);
        s3 = ByteReverseWord32(s3);
    #endif

    XMEMCPY(outBlock,                  &s0, sizeof(s0));
    XMEMCPY(outBlock + sizeof(s0),     &s1, sizeof(s1));
    XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2));
    XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3));
}

static void wc_AesDecrypt(Aes* aes, const byte* inBlock, byte* outBlock)
{
    word32 s0, s1, s2, s3;
    word32 t0, t1, t2, t3;
    word32 r = aes->rounds >> 1;

    const word32* rk = aes->key;
    if (r > 7 || r == 0) {
        WOLFSSL_MSG("AesDecrypt encountered improper key, set it up");
        return;  /* stop instead of segfaulting, set up your keys! */
    }
#ifdef WOLFSSL_AESNI
    if (haveAESNI && aes->use_aesni) {
        #ifdef DEBUG_AESNI
            printf("about to aes decrypt\n");
            printf("in  = %p\n", inBlock);
            printf("out = %p\n", outBlock);
            printf("aes->key = %p\n", aes->key);
            printf("aes->rounds = %d\n", aes->rounds);
            printf("sz = %d\n", AES_BLOCK_SIZE);
        #endif

        /* if input and output same will overwrite input iv */
        XMEMCPY(aes->tmp, inBlock, AES_BLOCK_SIZE);
        AES_ECB_decrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key,
                        aes->rounds);
        return;
    }
    else {
        #ifdef DEBUG_AESNI
            printf("Skipping AES-NI\n");
        #endif
    }
#endif

    /*
     * map byte array block to cipher state
     * and add initial round key:
     */
    XMEMCPY(&s0, inBlock,                  sizeof(s0));
    XMEMCPY(&s1, inBlock + sizeof(s0),     sizeof(s1));
    XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2));
    XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3));

    #ifdef LITTLE_ENDIAN_ORDER
        s0 = ByteReverseWord32(s0);
        s1 = ByteReverseWord32(s1);
        s2 = ByteReverseWord32(s2);
        s3 = ByteReverseWord32(s3);
    #endif

    s0 ^= rk[0];
    s1 ^= rk[1];
    s2 ^= rk[2];
    s3 ^= rk[3];

    /*
     * Nr - 1 full rounds:
     */

    for (;;) {
        t0 =
            Td[0][GETBYTE(s0, 3)] ^
            Td[1][GETBYTE(s3, 2)] ^
            Td[2][GETBYTE(s2, 1)] ^
            Td[3][GETBYTE(s1, 0)] ^
            rk[4];
        t1 =
            Td[0][GETBYTE(s1, 3)] ^
            Td[1][GETBYTE(s0, 2)] ^
            Td[2][GETBYTE(s3, 1)] ^
            Td[3][GETBYTE(s2, 0)] ^
            rk[5];
        t2 =
            Td[0][GETBYTE(s2, 3)] ^
            Td[1][GETBYTE(s1, 2)] ^
            Td[2][GETBYTE(s0, 1)] ^
            Td[3][GETBYTE(s3, 0)] ^
            rk[6];
        t3 =
            Td[0][GETBYTE(s3, 3)] ^
            Td[1][GETBYTE(s2, 2)] ^
            Td[2][GETBYTE(s1, 1)] ^
            Td[3][GETBYTE(s0, 0)] ^
            rk[7];

        rk += 8;
        if (--r == 0) {
            break;
        }

        s0 =
            Td[0][GETBYTE(t0, 3)] ^
            Td[1][GETBYTE(t3, 2)] ^
            Td[2][GETBYTE(t2, 1)] ^
            Td[3][GETBYTE(t1, 0)] ^
            rk[0];
        s1 =
            Td[0][GETBYTE(t1, 3)] ^
            Td[1][GETBYTE(t0, 2)] ^
            Td[2][GETBYTE(t3, 1)] ^
            Td[3][GETBYTE(t2, 0)] ^
            rk[1];
        s2 =
            Td[0][GETBYTE(t2, 3)] ^
            Td[1][GETBYTE(t1, 2)] ^
            Td[2][GETBYTE(t0, 1)] ^
            Td[3][GETBYTE(t3, 0)] ^
            rk[2];
        s3 =
            Td[0][GETBYTE(t3, 3)] ^
            Td[1][GETBYTE(t2, 2)] ^
            Td[2][GETBYTE(t1, 1)] ^
            Td[3][GETBYTE(t0, 0)] ^
            rk[3];
    }
    /*
     * apply last round and
     * map cipher state to byte array block:
     */
    s0 =
        (Td[4][GETBYTE(t0, 3)] & 0xff000000) ^
        (Td[4][GETBYTE(t3, 2)] & 0x00ff0000) ^
        (Td[4][GETBYTE(t2, 1)] & 0x0000ff00) ^
        (Td[4][GETBYTE(t1, 0)] & 0x000000ff) ^
        rk[0];
    s1 =
        (Td[4][GETBYTE(t1, 3)] & 0xff000000) ^
        (Td[4][GETBYTE(t0, 2)] & 0x00ff0000) ^
        (Td[4][GETBYTE(t3, 1)] & 0x0000ff00) ^
        (Td[4][GETBYTE(t2, 0)] & 0x000000ff) ^
        rk[1];
    s2 =
        (Td[4][GETBYTE(t2, 3)] & 0xff000000) ^
        (Td[4][GETBYTE(t1, 2)] & 0x00ff0000) ^
        (Td[4][GETBYTE(t0, 1)] & 0x0000ff00) ^
        (Td[4][GETBYTE(t3, 0)] & 0x000000ff) ^
        rk[2];
    s3 =
        (Td[4][GETBYTE(t3, 3)] & 0xff000000) ^
        (Td[4][GETBYTE(t2, 2)] & 0x00ff0000) ^
        (Td[4][GETBYTE(t1, 1)] & 0x0000ff00) ^
        (Td[4][GETBYTE(t0, 0)] & 0x000000ff) ^
        rk[3];

    /* write out */
    #ifdef LITTLE_ENDIAN_ORDER
        s0 = ByteReverseWord32(s0);
        s1 = ByteReverseWord32(s1);
        s2 = ByteReverseWord32(s2);
        s3 = ByteReverseWord32(s3);
    #endif

    XMEMCPY(outBlock,                  &s0, sizeof(s0));
    XMEMCPY(outBlock + sizeof(s0),     &s1, sizeof(s1));
    XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2));
    XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3));
}

#endif /* NEED_AES_TABLES */


/* wc_AesSetKey */
#ifdef STM32F2_CRYPTO
    int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv,
                  int dir)
    {
        word32 *rk = aes->key;

        if (!((keylen == 16) || (keylen == 24) || (keylen == 32)))
            return BAD_FUNC_ARG;

        aes->rounds = keylen/4 + 6;
        XMEMCPY(rk, userKey, keylen);
        ByteReverseWords(rk, rk, keylen);

        return wc_AesSetIV(aes, iv);
    }

    int wc_AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen,
                        const byte* iv, int dir)
    {
        return wc_AesSetKey(aes, userKey, keylen, iv, dir);
    }

#elif defined(HAVE_COLDFIRE_SEC)
    #if defined (HAVE_THREADX)
        #include "memory_pools.h"
        extern TX_BYTE_POOL mp_ncached;  /* Non Cached memory pool */
    #endif

    #define AES_BUFFER_SIZE (AES_BLOCK_SIZE * 64)
    static unsigned char *AESBuffIn = NULL;
    static unsigned char *AESBuffOut = NULL;
    static byte *secReg;
    static byte *secKey;
    static volatile SECdescriptorType *secDesc;

    static wolfSSL_Mutex Mutex_AesSEC;

    #define SEC_DESC_AES_CBC_ENCRYPT 0x60300010
    #define SEC_DESC_AES_CBC_DECRYPT 0x60200010

    extern volatile unsigned char __MBAR[];

    int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv,
                  int dir)
    {
        if (AESBuffIn == NULL) {
            #if defined (HAVE_THREADX)
			    int s1, s2, s3, s4, s5 ;
                s5 = tx_byte_allocate(&mp_ncached,(void *)&secDesc,
                                      sizeof(SECdescriptorType), TX_NO_WAIT);
                s1 = tx_byte_allocate(&mp_ncached, (void *)&AESBuffIn,
                                      AES_BUFFER_SIZE, TX_NO_WAIT);
                s2 = tx_byte_allocate(&mp_ncached, (void *)&AESBuffOut,
                                      AES_BUFFER_SIZE, TX_NO_WAIT);
                s3 = tx_byte_allocate(&mp_ncached, (void *)&secKey,
                                      AES_BLOCK_SIZE*2, TX_NO_WAIT);
                s4 = tx_byte_allocate(&mp_ncached, (void *)&secReg,
                                      AES_BLOCK_SIZE, TX_NO_WAIT);

                if(s1 || s2 || s3 || s4 || s5)
                    return BAD_FUNC_ARG;
            #else
                #warning "Allocate non-Cache buffers"
            #endif

            InitMutex(&Mutex_AesSEC);
        }

        if (!((keylen == 16) || (keylen == 24) || (keylen == 32)))
            return BAD_FUNC_ARG;

        if (aes == NULL)
            return BAD_FUNC_ARG;

        aes->rounds = keylen/4 + 6;
        XMEMCPY(aes->key, userKey, keylen);

        if (iv)
            XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);

        return 0;
    }
#elif defined(FREESCALE_MMCAU)
    int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv,
                  int dir)
    {
        byte *rk = (byte*)aes->key;

        if (!((keylen == 16) || (keylen == 24) || (keylen == 32)))
            return BAD_FUNC_ARG;

        if (rk == NULL)
            return BAD_FUNC_ARG;

        aes->rounds = keylen/4 + 6;
        cau_aes_set_key(userKey, keylen*8, rk);

        return wc_AesSetIV(aes, iv);
    }

    int wc_AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen,
                        const byte* iv, int dir)
    {
        return wc_AesSetKey(aes, userKey, keylen, iv, dir);
    }
#else
    static int wc_AesSetKeyLocal(Aes* aes, const byte* userKey, word32 keylen,
                const byte* iv, int dir)
    {
        word32 temp, *rk = aes->key;
        unsigned int i = 0;

        #ifdef WOLFSSL_AESNI
            aes->use_aesni = 0;
        #endif /* WOLFSSL_AESNI */
        #ifdef WOLFSSL_AES_COUNTER
            aes->left = 0;
        #endif /* WOLFSSL_AES_COUNTER */

        aes->rounds = keylen/4 + 6;

        XMEMCPY(rk, userKey, keylen);
        #ifdef LITTLE_ENDIAN_ORDER
            ByteReverseWords(rk, rk, keylen);
        #endif

        #ifdef WOLFSSL_PIC32MZ_CRYPT
        {
            word32 *akey1 = aes->key_ce;
            word32 *areg = aes->iv_ce ;
            aes->keylen = keylen ;
            XMEMCPY(akey1, userKey, keylen);
            if (iv)
                XMEMCPY(areg, iv, AES_BLOCK_SIZE);
            else
                XMEMSET(areg,  0, AES_BLOCK_SIZE);
        }
        #endif

        switch(keylen)
        {
        case 16:
            while (1)
            {
                temp  = rk[3];
                rk[4] = rk[0] ^
                    (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^
                    (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^
                    (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^
                    (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^
                    rcon[i];
                rk[5] = rk[1] ^ rk[4];
                rk[6] = rk[2] ^ rk[5];
                rk[7] = rk[3] ^ rk[6];
                if (++i == 10)
                    break;
                rk += 4;
            }
            break;

        case 24:
            /* for (;;) here triggers a bug in VC60 SP4 w/ Pro Pack */
            while (1)
            {
                temp = rk[ 5];
                rk[ 6] = rk[ 0] ^
                    (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^
                    (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^
                    (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^
                    (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^
                    rcon[i];
                rk[ 7] = rk[ 1] ^ rk[ 6];
                rk[ 8] = rk[ 2] ^ rk[ 7];
                rk[ 9] = rk[ 3] ^ rk[ 8];
                if (++i == 8)
                    break;
                rk[10] = rk[ 4] ^ rk[ 9];
                rk[11] = rk[ 5] ^ rk[10];
                rk += 6;
            }
            break;

        case 32:
            while (1)
            {
                temp = rk[ 7];
                rk[ 8] = rk[ 0] ^
                    (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^
                    (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^
                    (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^
                    (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^
                    rcon[i];
                rk[ 9] = rk[ 1] ^ rk[ 8];
                rk[10] = rk[ 2] ^ rk[ 9];
                rk[11] = rk[ 3] ^ rk[10];
                if (++i == 7)
                    break;
                temp = rk[11];
                rk[12] = rk[ 4] ^
                    (Te[4][GETBYTE(temp, 3)] & 0xff000000) ^
                    (Te[4][GETBYTE(temp, 2)] & 0x00ff0000) ^
                    (Te[4][GETBYTE(temp, 1)] & 0x0000ff00) ^
                    (Te[4][GETBYTE(temp, 0)] & 0x000000ff);
                rk[13] = rk[ 5] ^ rk[12];
                rk[14] = rk[ 6] ^ rk[13];
                rk[15] = rk[ 7] ^ rk[14];

                rk += 8;
            }
            break;

        default:
            return BAD_FUNC_ARG;
        }

        if (dir == AES_DECRYPTION)
        {
            unsigned int j;
            rk = aes->key;

            /* invert the order of the round keys: */
            for (i = 0, j = 4* aes->rounds; i < j; i += 4, j -= 4) {
                temp = rk[i    ]; rk[i    ] = rk[j    ]; rk[j    ] = temp;
                temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp;
                temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp;
                temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp;
            }
            /* apply the inverse MixColumn transform to all round keys but the
               first and the last: */
            for (i = 1; i < aes->rounds; i++) {
                rk += 4;
                rk[0] =
                    Td[0][Te[4][GETBYTE(rk[0], 3)] & 0xff] ^
                    Td[1][Te[4][GETBYTE(rk[0], 2)] & 0xff] ^
                    Td[2][Te[4][GETBYTE(rk[0], 1)] & 0xff] ^
                    Td[3][Te[4][GETBYTE(rk[0], 0)] & 0xff];
                rk[1] =
                    Td[0][Te[4][GETBYTE(rk[1], 3)] & 0xff] ^
                    Td[1][Te[4][GETBYTE(rk[1], 2)] & 0xff] ^
                    Td[2][Te[4][GETBYTE(rk[1], 1)] & 0xff] ^
                    Td[3][Te[4][GETBYTE(rk[1], 0)] & 0xff];
                rk[2] =
                    Td[0][Te[4][GETBYTE(rk[2], 3)] & 0xff] ^
                    Td[1][Te[4][GETBYTE(rk[2], 2)] & 0xff] ^
                    Td[2][Te[4][GETBYTE(rk[2], 1)] & 0xff] ^
                    Td[3][Te[4][GETBYTE(rk[2], 0)] & 0xff];
                rk[3] =
                    Td[0][Te[4][GETBYTE(rk[3], 3)] & 0xff] ^
                    Td[1][Te[4][GETBYTE(rk[3], 2)] & 0xff] ^
                    Td[2][Te[4][GETBYTE(rk[3], 1)] & 0xff] ^
                    Td[3][Te[4][GETBYTE(rk[3], 0)] & 0xff];
            }
        }

        return wc_AesSetIV(aes, iv);
    }

    int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv,
                  int dir)
    {

        if (!((keylen == 16) || (keylen == 24) || (keylen == 32)))
            return BAD_FUNC_ARG;

        #ifdef HAVE_CAVIUM
        if (aes->magic == WOLFSSL_AES_CAVIUM_MAGIC)
            return wc_AesCaviumSetKey(aes, userKey, keylen, iv);
        #endif

        #ifdef WOLFSSL_AESNI
        if (checkAESNI == 0) {
            haveAESNI  = Check_CPU_support_AES();
            checkAESNI = 1;
        }
        if (haveAESNI) {
            aes->use_aesni = 1;
            if (iv)
                XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);
            if (dir == AES_ENCRYPTION)
                return AES_set_encrypt_key(userKey, keylen * 8, aes);
            else
                return AES_set_decrypt_key(userKey, keylen * 8, aes);
        }
        #endif /* WOLFSSL_AESNI */

        return wc_AesSetKeyLocal(aes, userKey, keylen, iv, dir);
    }

    #if defined(WOLFSSL_AES_DIRECT) || defined(WOLFSSL_AES_COUNTER)

    /* AES-CTR and AES-DIRECT need to use this for key setup, no aesni yet */
    int wc_AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen,
                        const byte* iv, int dir)
    {
        return wc_AesSetKeyLocal(aes, userKey, keylen, iv, dir);
    }

    #endif /* WOLFSSL_AES_DIRECT || WOLFSSL_AES_COUNTER */
#endif /* STM32F2_CRYPTO, wc_AesSetKey block */


/* wc_AesSetIV is shared between software and hardware */
int wc_AesSetIV(Aes* aes, const byte* iv)
{
    if (aes == NULL)
        return BAD_FUNC_ARG;

    if (iv)
        XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);
    else
        XMEMSET(aes->reg,  0, AES_BLOCK_SIZE);

    return 0;
}


int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
                                  const byte* key, word32 keySz, const byte* iv)
{
    int  ret = 0;
#ifdef WOLFSSL_SMALL_STACK
    Aes* aes = NULL;
#else
    Aes  aes[1];
#endif

#ifdef WOLFSSL_SMALL_STACK
    aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
    if (aes == NULL)
        return MEMORY_E;
#endif

    ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
    if (ret == 0)
        ret = wc_AesCbcDecrypt(aes, out, in, inSz); 

#ifdef WOLFSSL_SMALL_STACK
    XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#endif

    return ret;
}


/* AES-DIRECT */
#if defined(WOLFSSL_AES_DIRECT)
    #if defined(FREESCALE_MMCAU)

        /* Allow direct access to one block encrypt */
        void wc_AesEncryptDirect(Aes* aes, byte* out, const byte* in)
        {
            byte* key;
            key = (byte*)aes->key;

            return cau_aes_encrypt(in, key, aes->rounds, out);
        }

        /* Allow direct access to one block decrypt */
        void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in)
        {
            byte* key;
            key = (byte*)aes->key;

            return cau_aes_decrypt(in, key, aes->rounds, out);
        }

    #elif defined(STM32F2_CRYPTO)
        #error "STM32F2 crypto doesn't yet support AES direct"

    #elif defined(HAVE_COLDFIRE_SEC)
        #error "Coldfire SEC doesn't yet support AES direct"

    #elif defined(WOLFSSL_PIC32MZ_CRYPT)
        #error "PIC32MZ doesn't yet support AES direct"

    #else
        /* Allow direct access to one block encrypt */
        void wc_AesEncryptDirect(Aes* aes, byte* out, const byte* in)
        {
            return wc_AesEncrypt(aes, in, out);
        }

        /* Allow direct access to one block decrypt */
        void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in)
        {
            return wc_AesDecrypt(aes, in, out);
        }

    #endif /* FREESCALE_MMCAU, AES direct block */
#endif /* WOLFSSL_AES_DIRECT */


/* AES-CBC */
#ifdef STM32F2_CRYPTO
    int wc_AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        word32 *enc_key, *iv;
        CRYP_InitTypeDef AES_CRYP_InitStructure;
        CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure;
        CRYP_IVInitTypeDef AES_CRYP_IVInitStructure;

        enc_key = aes->key;
        iv = aes->reg;

        /* crypto structure initialization */
        CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure);
        CRYP_StructInit(&AES_CRYP_InitStructure);
        CRYP_IVStructInit(&AES_CRYP_IVInitStructure);

        /* reset registers to their default values */
        CRYP_DeInit();

        /* load key into correct registers */
        switch(aes->rounds)
        {
            case 10: /* 128-bit key */
                AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
                AES_CRYP_KeyInitStructure.CRYP_Key2Left  = enc_key[0];
                AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1];
                AES_CRYP_KeyInitStructure.CRYP_Key3Left  = enc_key[2];
                AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3];
                break;

            case 12: /* 192-bit key */
                AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b;
                AES_CRYP_KeyInitStructure.CRYP_Key1Left  = enc_key[0];
                AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1];
                AES_CRYP_KeyInitStructure.CRYP_Key2Left  = enc_key[2];
                AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3];
                AES_CRYP_KeyInitStructure.CRYP_Key3Left  = enc_key[4];
                AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5];
                break;

            case 14: /* 256-bit key */
                AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b;
                AES_CRYP_KeyInitStructure.CRYP_Key0Left  = enc_key[0];
                AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1];
                AES_CRYP_KeyInitStructure.CRYP_Key1Left  = enc_key[2];
                AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3];
                AES_CRYP_KeyInitStructure.CRYP_Key2Left  = enc_key[4];
                AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5];
                AES_CRYP_KeyInitStructure.CRYP_Key3Left  = enc_key[6];
                AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7];
                break;

            default:
                break;
        }
        CRYP_KeyInit(&AES_CRYP_KeyInitStructure);

        /* set iv */
        ByteReverseWords(iv, iv, AES_BLOCK_SIZE);
        AES_CRYP_IVInitStructure.CRYP_IV0Left  = iv[0];
        AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1];
        AES_CRYP_IVInitStructure.CRYP_IV1Left  = iv[2];
        AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3];
        CRYP_IVInit(&AES_CRYP_IVInitStructure);

        /* set direction, mode, and datatype */
        AES_CRYP_InitStructure.CRYP_AlgoDir  = CRYP_AlgoDir_Encrypt;
        AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC;
        AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b;
        CRYP_Init(&AES_CRYP_InitStructure);

        /* enable crypto processor */
        CRYP_Cmd(ENABLE);

        while (sz > 0)
        {
            /* flush IN/OUT FIFOs */
            CRYP_FIFOFlush();

            CRYP_DataIn(*(uint32_t*)&in[0]);
            CRYP_DataIn(*(uint32_t*)&in[4]);
            CRYP_DataIn(*(uint32_t*)&in[8]);
            CRYP_DataIn(*(uint32_t*)&in[12]);

            /* wait until the complete message has been processed */
            while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}

            *(uint32_t*)&out[0]  = CRYP_DataOut();
            *(uint32_t*)&out[4]  = CRYP_DataOut();
            *(uint32_t*)&out[8]  = CRYP_DataOut();
            *(uint32_t*)&out[12] = CRYP_DataOut();

            /* store iv for next call */
            XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);

            sz  -= 16;
            in  += 16;
            out += 16;
        }

        /* disable crypto processor */
        CRYP_Cmd(DISABLE);

        return 0;
    }

    int wc_AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        word32 *dec_key, *iv;
        CRYP_InitTypeDef AES_CRYP_InitStructure;
        CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure;
        CRYP_IVInitTypeDef AES_CRYP_IVInitStructure;

        dec_key = aes->key;
        iv = aes->reg;

        /* crypto structure initialization */
        CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure);
        CRYP_StructInit(&AES_CRYP_InitStructure);
        CRYP_IVStructInit(&AES_CRYP_IVInitStructure);

        /* if input and output same will overwrite input iv */
        XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);

        /* reset registers to their default values */
        CRYP_DeInit();

        /* load key into correct registers */
        switch(aes->rounds)
        {
            case 10: /* 128-bit key */
                AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
                AES_CRYP_KeyInitStructure.CRYP_Key2Left  = dec_key[0];
                AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[1];
                AES_CRYP_KeyInitStructure.CRYP_Key3Left  = dec_key[2];
                AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[3];
                break;

            case 12: /* 192-bit key */
                AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b;
                AES_CRYP_KeyInitStructure.CRYP_Key1Left  = dec_key[0];
                AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[1];
                AES_CRYP_KeyInitStructure.CRYP_Key2Left  = dec_key[2];
                AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[3];
                AES_CRYP_KeyInitStructure.CRYP_Key3Left  = dec_key[4];
                AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[5];
                break;

            case 14: /* 256-bit key */
                AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b;
                AES_CRYP_KeyInitStructure.CRYP_Key0Left  = dec_key[0];
                AES_CRYP_KeyInitStructure.CRYP_Key0Right = dec_key[1];
                AES_CRYP_KeyInitStructure.CRYP_Key1Left  = dec_key[2];
                AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[3];
                AES_CRYP_KeyInitStructure.CRYP_Key2Left  = dec_key[4];
                AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[5];
                AES_CRYP_KeyInitStructure.CRYP_Key3Left  = dec_key[6];
                AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[7];
                break;

            default:
                break;
        }

        /* set direction, mode, and datatype for key preparation */
        AES_CRYP_InitStructure.CRYP_AlgoDir  = CRYP_AlgoDir_Decrypt;
        AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_Key;
        AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
        CRYP_Init(&AES_CRYP_InitStructure);
        CRYP_KeyInit(&AES_CRYP_KeyInitStructure);

        /* enable crypto processor */
        CRYP_Cmd(ENABLE);

        /* wait until key has been prepared */
        while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}

        /* set direction, mode, and datatype for decryption */
        AES_CRYP_InitStructure.CRYP_AlgoDir  = CRYP_AlgoDir_Decrypt;
        AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC;
        AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b;
        CRYP_Init(&AES_CRYP_InitStructure);

        /* set iv */
        ByteReverseWords(iv, iv, AES_BLOCK_SIZE);

        AES_CRYP_IVInitStructure.CRYP_IV0Left  = iv[0];
        AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1];
        AES_CRYP_IVInitStructure.CRYP_IV1Left  = iv[2];
        AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3];
        CRYP_IVInit(&AES_CRYP_IVInitStructure);

        /* enable crypto processor */
        CRYP_Cmd(ENABLE);

        while (sz > 0)
        {
            /* flush IN/OUT FIFOs */
            CRYP_FIFOFlush();

            CRYP_DataIn(*(uint32_t*)&in[0]);
            CRYP_DataIn(*(uint32_t*)&in[4]);
            CRYP_DataIn(*(uint32_t*)&in[8]);
            CRYP_DataIn(*(uint32_t*)&in[12]);

            /* wait until the complete message has been processed */
            while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}

            *(uint32_t*)&out[0]  = CRYP_DataOut();
            *(uint32_t*)&out[4]  = CRYP_DataOut();
            *(uint32_t*)&out[8]  = CRYP_DataOut();
            *(uint32_t*)&out[12] = CRYP_DataOut();

            /* store iv for next call */
            XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);

            sz -= 16;
            in += 16;
            out += 16;
        }

        /* disable crypto processor */
        CRYP_Cmd(DISABLE);

        return 0;
    }

#elif defined(HAVE_COLDFIRE_SEC)
    static int wc_AesCbcCrypt(Aes* aes, byte* po, const byte* pi, word32 sz,
                           word32 descHeader)
    {
        #ifdef DEBUG_WOLFSSL
            int i; int stat1, stat2; int ret;
	    #endif

        int size;
        volatile int v;

        if ((pi == NULL) || (po == NULL))
            return BAD_FUNC_ARG;    /*wrong pointer*/

        LockMutex(&Mutex_AesSEC);

        /* Set descriptor for SEC */
        secDesc->length1 = 0x0;
        secDesc->pointer1 = NULL;

        secDesc->length2 = AES_BLOCK_SIZE;
        secDesc->pointer2 = (byte *)secReg; /* Initial Vector */

        switch(aes->rounds) {
            case 10: secDesc->length3 = 16 ; break ;
            case 12: secDesc->length3 = 24 ; break ;
            case 14: secDesc->length3 = 32 ; break ;
        }
        XMEMCPY(secKey, aes->key, secDesc->length3);

        secDesc->pointer3 = (byte *)secKey;
        secDesc->pointer4 = AESBuffIn;
        secDesc->pointer5 = AESBuffOut;
        secDesc->length6 = 0x0;
        secDesc->pointer6 = NULL;
        secDesc->length7 = 0x0;
        secDesc->pointer7 = NULL;
        secDesc->nextDescriptorPtr = NULL;

        while (sz) {
            secDesc->header = descHeader;
            XMEMCPY(secReg, aes->reg, AES_BLOCK_SIZE);
            if ((sz % AES_BUFFER_SIZE) == sz) {
                size = sz;
                sz = 0;
            } else {
                size = AES_BUFFER_SIZE;
                sz -= AES_BUFFER_SIZE;
            }
            secDesc->length4 = size;
            secDesc->length5 = size;

            XMEMCPY(AESBuffIn, pi, size);
            if(descHeader == SEC_DESC_AES_CBC_DECRYPT) {
                XMEMCPY((void*)aes->tmp, (void*)&(pi[size-AES_BLOCK_SIZE]),
                        AES_BLOCK_SIZE);
            }

            /* Point SEC to the location of the descriptor */
            MCF_SEC_FR0 = (uint32)secDesc;
            /* Initialize SEC and wait for encryption to complete */
            MCF_SEC_CCCR0 = 0x0000001a;
            /* poll SISR to determine when channel is complete */
            v=0;

            while ((secDesc->header>> 24) != 0xff) v++;

            #ifdef DEBUG_WOLFSSL
                ret = MCF_SEC_SISRH;
                stat1 = MCF_SEC_AESSR;
                stat2 = MCF_SEC_AESISR;
                if (ret & 0xe0000000) {
                    db_printf("Aes_Cbc(i=%d):ISRH=%08x, AESSR=%08x, "
                              "AESISR=%08x\n", i, ret, stat1, stat2);
                }
            #endif

            XMEMCPY(po, AESBuffOut, size);

            if (descHeader == SEC_DESC_AES_CBC_ENCRYPT) {
                XMEMCPY((void*)aes->reg, (void*)&(po[size-AES_BLOCK_SIZE]),
                        AES_BLOCK_SIZE);
            } else {
                XMEMCPY((void*)aes->reg, (void*)aes->tmp, AES_BLOCK_SIZE);
            }

            pi += size;
            po += size;
        }

        UnLockMutex(&Mutex_AesSEC);
        return 0;
    }

    int wc_AesCbcEncrypt(Aes* aes, byte* po, const byte* pi, word32 sz)
    {
        return (wc_AesCbcCrypt(aes, po, pi, sz, SEC_DESC_AES_CBC_ENCRYPT));
    }

    int wc_AesCbcDecrypt(Aes* aes, byte* po, const byte* pi, word32 sz)
    {
        return (wc_AesCbcCrypt(aes, po, pi, sz, SEC_DESC_AES_CBC_DECRYPT));
    }

#elif defined(FREESCALE_MMCAU)
    int wc_AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        int i;
        int offset = 0;
        int len = sz;

        byte *iv, *enc_key;
        byte temp_block[AES_BLOCK_SIZE];

        iv      = (byte*)aes->reg;
        enc_key = (byte*)aes->key;

        if ((wolfssl_word)out % WOLFSSL_MMCAU_ALIGNMENT) {
            WOLFSSL_MSG("Bad cau_aes_encrypt alignment");
            return BAD_ALIGN_E;
        }

        while (len > 0)
        {
            XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE);

            /* XOR block with IV for CBC */
            for (i = 0; i < AES_BLOCK_SIZE; i++)
                temp_block[i] ^= iv[i];

            cau_aes_encrypt(temp_block, enc_key, aes->rounds, out + offset);

            len    -= AES_BLOCK_SIZE;
            offset += AES_BLOCK_SIZE;

            /* store IV for next block */
            XMEMCPY(iv, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
        }

        return 0;
    }

    int wc_AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        int i;
        int offset = 0;
        int len = sz;

        byte* iv, *dec_key;
        byte temp_block[AES_BLOCK_SIZE];

        iv      = (byte*)aes->reg;
        dec_key = (byte*)aes->key;

        if ((wolfssl_word)out % WOLFSSL_MMCAU_ALIGNMENT) {
            WOLFSSL_MSG("Bad cau_aes_decrypt alignment");
            return BAD_ALIGN_E;
        }

        while (len > 0)
        {
            XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE);

            cau_aes_decrypt(in + offset, dec_key, aes->rounds, out + offset);

            /* XOR block with IV for CBC */
            for (i = 0; i < AES_BLOCK_SIZE; i++)
                (out + offset)[i] ^= iv[i];

            /* store IV for next block */
            XMEMCPY(iv, temp_block, AES_BLOCK_SIZE);

            len    -= AES_BLOCK_SIZE;
            offset += AES_BLOCK_SIZE;
        }

        return 0;
    }

#elif defined(WOLFSSL_PIC32MZ_CRYPT)
    /* core hardware crypt engine driver */
    static void wc_AesCrypt(Aes *aes, byte* out, const byte* in, word32 sz,
                                            int dir, int algo, int cryptoalgo)
    {
        securityAssociation *sa_p ;
        bufferDescriptor *bd_p ;

        volatile securityAssociation sa __attribute__((aligned (8)));
        volatile bufferDescriptor bd __attribute__((aligned (8)));
        volatile int k ;

        /* get uncached address */
        sa_p = KVA0_TO_KVA1(&sa) ;
        bd_p = KVA0_TO_KVA1(&bd) ;

        /* Sync cache and physical memory */
        if(PIC32MZ_IF_RAM(in)) {
            XMEMCPY((void *)KVA0_TO_KVA1(in), (void *)in, sz);
        }
        XMEMSET((void *)KVA0_TO_KVA1(out), 0, sz);
        /* Set up the Security Association */
        XMEMSET((byte *)KVA0_TO_KVA1(&sa), 0, sizeof(sa));
        sa_p->SA_CTRL.ALGO = algo ; /* AES */
        sa_p->SA_CTRL.LNC = 1;
        sa_p->SA_CTRL.LOADIV = 1;
        sa_p->SA_CTRL.FB = 1;
        sa_p->SA_CTRL.ENCTYPE = dir ; /* Encryption/Decryption */
        sa_p->SA_CTRL.CRYPTOALGO = cryptoalgo;

        if(cryptoalgo == PIC32_CRYPTOALGO_AES_GCM){
            switch(aes->keylen) {
            case 32:
                sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_256 ;
                break ;
            case 24:
                sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_192 ;
                break ;
            case 16:
                sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_128 ;
                break ;
            }
        } else
            sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_128 ;

        ByteReverseWords(
        (word32 *)KVA0_TO_KVA1(sa.SA_ENCKEY + 8 - aes->keylen/sizeof(word32)),
                         (word32 *)aes->key_ce, aes->keylen);
        ByteReverseWords(
        (word32*)KVA0_TO_KVA1(sa.SA_ENCIV), (word32 *)aes->iv_ce, 16);

        XMEMSET((byte *)KVA0_TO_KVA1(&bd), 0, sizeof(bd));
        /* Set up the Buffer Descriptor */
        bd_p->BD_CTRL.BUFLEN = sz;
        if(cryptoalgo == PIC32_CRYPTOALGO_AES_GCM) {
            if(sz % 0x10)
                bd_p->BD_CTRL.BUFLEN = (sz/0x10 + 1) * 0x10 ;
        }
        bd_p->BD_CTRL.LIFM = 1;
        bd_p->BD_CTRL.SA_FETCH_EN = 1;
        bd_p->BD_CTRL.LAST_BD = 1;
        bd_p->BD_CTRL.DESC_EN = 1;

        bd_p->SA_ADDR = (unsigned int)KVA_TO_PA(&sa) ;
        bd_p->SRCADDR = (unsigned int)KVA_TO_PA(in) ;
        bd_p->DSTADDR = (unsigned int)KVA_TO_PA(out);
        bd_p->MSGLEN = sz ;

        CECON = 1 << 6;
        while (CECON);

        /* Run the engine */
        CEBDPADDR = (unsigned int)KVA_TO_PA(&bd) ;
        CEINTEN = 0x07;
        CECON = 0x27;

        WAIT_ENGINE ;

        if((cryptoalgo == PIC32_CRYPTOALGO_CBC) ||
           (cryptoalgo == PIC32_CRYPTOALGO_TCBC)||
           (cryptoalgo == PIC32_CRYPTOALGO_RCBC)) {
            /* set iv for the next call */
            if(dir == PIC32_ENCRYPTION) {
                XMEMCPY((void *)aes->iv_ce,
                        (void*)KVA0_TO_KVA1(out + sz - AES_BLOCK_SIZE),
                        AES_BLOCK_SIZE) ;
            } else {
                ByteReverseWords((word32*)aes->iv_ce,
                        (word32 *)KVA0_TO_KVA1(in + sz - AES_BLOCK_SIZE),
                        AES_BLOCK_SIZE);
            }
        }
        XMEMCPY((byte *)out, (byte *)KVA0_TO_KVA1(out), sz) ;
        ByteReverseWords((word32*)out, (word32 *)out, sz);
    }

    int wc_AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        wc_AesCrypt(aes, out, in, sz, PIC32_ENCRYPTION, PIC32_ALGO_AES,
                                                      PIC32_CRYPTOALGO_RCBC );
        return 0 ;
    }

    int wc_AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        wc_AesCrypt(aes, out, in, sz, PIC32_DECRYPTION, PIC32_ALGO_AES,
                                                      PIC32_CRYPTOALGO_RCBC);
        return 0 ;
    }

#else
    int wc_AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        word32 blocks = sz / AES_BLOCK_SIZE;

    #ifdef HAVE_CAVIUM
        if (aes->magic == WOLFSSL_AES_CAVIUM_MAGIC)
            return wc_AesCaviumCbcEncrypt(aes, out, in, sz);
    #endif

    #ifdef WOLFSSL_AESNI
        if (haveAESNI) {
            #ifdef DEBUG_AESNI
                printf("about to aes cbc encrypt\n");
                printf("in  = %p\n", in);
                printf("out = %p\n", out);
                printf("aes->key = %p\n", aes->key);
                printf("aes->reg = %p\n", aes->reg);
                printf("aes->rounds = %d\n", aes->rounds);
                printf("sz = %d\n", sz);
            #endif

            /* check alignment, decrypt doesn't need alignment */
            if ((wolfssl_word)in % 16) {
            #ifndef NO_WOLFSSL_ALLOC_ALIGN
                byte* tmp = (byte*)XMALLOC(sz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
                WOLFSSL_MSG("AES-CBC encrypt with bad alignment");
                if (tmp == NULL) return MEMORY_E;

                XMEMCPY(tmp, in, sz);
                AES_CBC_encrypt(tmp, tmp, (byte*)aes->reg, sz, (byte*)aes->key,
                            aes->rounds);
                /* store iv for next call */
                XMEMCPY(aes->reg, tmp + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);

                XMEMCPY(out, tmp, sz);
                XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER);
                return 0;
            #else
                return BAD_ALIGN_E;
            #endif
            }

            AES_CBC_encrypt(in, out, (byte*)aes->reg, sz, (byte*)aes->key,
                            aes->rounds);
            /* store iv for next call */
            XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);

            return 0;
        }
    #endif

        while (blocks--) {
            xorbuf((byte*)aes->reg, in, AES_BLOCK_SIZE);
            wc_AesEncrypt(aes, (byte*)aes->reg, (byte*)aes->reg);
            XMEMCPY(out, aes->reg, AES_BLOCK_SIZE);

            out += AES_BLOCK_SIZE;
            in  += AES_BLOCK_SIZE;
        }

        return 0;
    }

    int wc_AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
    {
        word32 blocks = sz / AES_BLOCK_SIZE;

    #ifdef HAVE_CAVIUM
        if (aes->magic == WOLFSSL_AES_CAVIUM_MAGIC)
            return wc_AesCaviumCbcDecrypt(aes, out, in, sz);
    #endif

    #ifdef WOLFSSL_AESNI
        if (haveAESNI) {
            #ifdef DEBUG_AESNI
                printf("about to aes cbc decrypt\n");
                printf("in  = %p\n", in);
                printf("out = %p\n", out);
                printf("aes->key = %p\n", aes->key);
                printf("aes->reg = %p\n", aes->reg);
                printf("aes->rounds = %d\n", aes->rounds);
                printf("sz = %d\n", sz);
            #endif

            /* if input and output same will overwrite input iv */
            XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
            AES_CBC_decrypt(in, out, (byte*)aes->reg, sz, (byte*)aes->key,
                            aes->rounds);
            /* store iv for next call */
            XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
            return 0;
        }
    #endif

        while (blocks--) {
            XMEMCPY(aes->tmp, in, AES_BLOCK_SIZE);
            wc_AesDecrypt(aes, (byte*)aes->tmp, out);
            xorbuf(out, (byte*)aes->reg, AES_BLOCK_SIZE);
            XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);

            out += AES_BLOCK_SIZE;
            in  += AES_BLOCK_SIZE;
        }

        return 0;
    }

#endif /* STM32F2_CRYPTO, AES-CBC block */

/* AES-CTR */
#ifdef WOLFSSL_AES_COUNTER

    #ifdef STM32F2_CRYPTO
        void wc_AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
        {
            word32 *enc_key, *iv;
            CRYP_InitTypeDef AES_CRYP_InitStructure;
            CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure;
            CRYP_IVInitTypeDef AES_CRYP_IVInitStructure;

            enc_key = aes->key;
            iv = aes->reg;

            /* crypto structure initialization */
            CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure);
            CRYP_StructInit(&AES_CRYP_InitStructure);
            CRYP_IVStructInit(&AES_CRYP_IVInitStructure);

            /* reset registers to their default values */
            CRYP_DeInit();

            /* load key into correct registers */
            switch(aes->rounds)
            {
                case 10: /* 128-bit key */
                    AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
                    AES_CRYP_KeyInitStructure.CRYP_Key2Left  = enc_key[0];
                    AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1];
                    AES_CRYP_KeyInitStructure.CRYP_Key3Left  = enc_key[2];
                    AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3];
                    break;

                case 12: /* 192-bit key */
                    AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b;
                    AES_CRYP_KeyInitStructure.CRYP_Key1Left  = enc_key[0];
                    AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1];
                    AES_CRYP_KeyInitStructure.CRYP_Key2Left  = enc_key[2];
                    AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3];
                    AES_CRYP_KeyInitStructure.CRYP_Key3Left  = enc_key[4];
                    AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5];
                    break;

                case 14: /* 256-bit key */
                    AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b;
                    AES_CRYP_KeyInitStructure.CRYP_Key0Left  = enc_key[0];
                    AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1];
                    AES_CRYP_KeyInitStructure.CRYP_Key1Left  = enc_key[2];
                    AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3];
                    AES_CRYP_KeyInitStructure.CRYP_Key2Left  = enc_key[4];
                    AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5];
                    AES_CRYP_KeyInitStructure.CRYP_Key3Left  = enc_key[6];
                    AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7];
                    break;

                default:
                    break;
            }
            CRYP_KeyInit(&AES_CRYP_KeyInitStructure);

            /* set iv */
            ByteReverseWords(iv, iv, AES_BLOCK_SIZE);
            AES_CRYP_IVInitStructure.CRYP_IV0Left  = iv[0];
            AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1];
            AES_CRYP_IVInitStructure.CRYP_IV1Left  = iv[2];
            AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3];
            CRYP_IVInit(&AES_CRYP_IVInitStructure);

            /* set direction, mode, and datatype */
            AES_CRYP_InitStructure.CRYP_AlgoDir  = CRYP_AlgoDir_Encrypt;
            AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CTR;
            AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b;
            CRYP_Init(&AES_CRYP_InitStructure);

            /* enable crypto processor */
            CRYP_Cmd(ENABLE);

            while (sz > 0)
            {
                /* flush IN/OUT FIFOs */
                CRYP_FIFOFlush();

                CRYP_DataIn(*(uint32_t*)&in[0]);
                CRYP_DataIn(*(uint32_t*)&in[4]);
                CRYP_DataIn(*(uint32_t*)&in[8]);
                CRYP_DataIn(*(uint32_t*)&in[12]);

                /* wait until the complete message has been processed */
                while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {}

                *(uint32_t*)&out[0]  = CRYP_DataOut();
                *(uint32_t*)&out[4]  = CRYP_DataOut();
                *(uint32_t*)&out[8]  = CRYP_DataOut();
                *(uint32_t*)&out[12] = CRYP_DataOut();

                /* store iv for next call */
                XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);

                sz  -= 16;
                in  += 16;
                out += 16;
            }

            /* disable crypto processor */
            CRYP_Cmd(DISABLE);
        }

    #elif defined(WOLFSSL_PIC32MZ_CRYPT)
        void wc_AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
        {
            int i ;
            char out_block[AES_BLOCK_SIZE] ;
            int odd ;
            int even ;
            char *tmp ; /* (char *)aes->tmp, for short */

            tmp = (char *)aes->tmp ;
            if(aes->left) {
                if((aes->left + sz) >= AES_BLOCK_SIZE){
                    odd = AES_BLOCK_SIZE - aes->left ;
                } else {
                    odd = sz ;
                }
                XMEMCPY(tmp+aes->left, in, odd) ;
                if((odd+aes->left) == AES_BLOCK_SIZE){
                    wc_AesCrypt(aes, out_block, tmp, AES_BLOCK_SIZE,
                        PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR);
                    XMEMCPY(out, out_block+aes->left, odd) ;
                    aes->left = 0 ;
                    XMEMSET(tmp, 0x0, AES_BLOCK_SIZE) ;
                    /* Increment IV */
                    for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) {
                        if (++((byte *)aes->iv_ce)[i])
                            break ;
                    }
                }
                in += odd ;
                out+= odd ;
                sz -= odd ;
            }
            odd = sz % AES_BLOCK_SIZE ;  /* if there is tail flagment */
            if(sz / AES_BLOCK_SIZE) {
                even = (sz/AES_BLOCK_SIZE)*AES_BLOCK_SIZE ;
                wc_AesCrypt(aes, out, in, even, PIC32_ENCRYPTION, PIC32_ALGO_AES,
                                                        PIC32_CRYPTOALGO_RCTR);
                out += even ;
                in  += even ;
                do {  /* Increment IV */
                    for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) {
                        if (++((byte *)aes->iv_ce)[i])
                            break ;
                    }
                    even -= AES_BLOCK_SIZE ;
                } while((int)even > 0) ;
            }
            if(odd) {
                XMEMSET(tmp+aes->left, 0x0, AES_BLOCK_SIZE - aes->left) ;
                XMEMCPY(tmp+aes->left, in, odd) ;
                wc_AesCrypt(aes, out_block, tmp, AES_BLOCK_SIZE,
                        PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR);
                XMEMCPY(out, out_block+aes->left,odd) ;
                aes->left += odd ;
            }
        }

    #elif defined(HAVE_COLDFIRE_SEC)
        #error "Coldfire SEC doesn't currently support AES-CTR mode"

    #elif defined(FREESCALE_MMCAU)
        #error "Freescale mmCAU doesn't currently support AES-CTR mode"

    #else
        /* Increment AES counter */
        static INLINE void IncrementAesCounter(byte* inOutCtr)
        {
            int i;

            /* in network byte order so start at end and work back */
            for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) {
                if (++inOutCtr[i])  /* we're done unless we overflow */
                    return;
            }
        }

        void wc_AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
        {
            byte* tmp = (byte*)aes->tmp + AES_BLOCK_SIZE - aes->left;

            /* consume any unused bytes left in aes->tmp */
            while (aes->left && sz) {
               *(out++) = *(in++) ^ *(tmp++);
               aes->left--;
               sz--;
            }

            /* do as many block size ops as possible */
            while (sz >= AES_BLOCK_SIZE) {
                wc_AesEncrypt(aes, (byte*)aes->reg, out);
                IncrementAesCounter((byte*)aes->reg);
                xorbuf(out, in, AES_BLOCK_SIZE);

                out += AES_BLOCK_SIZE;
                in  += AES_BLOCK_SIZE;
                sz  -= AES_BLOCK_SIZE;
                aes->left = 0;
            }

            /* handle non block size remaining and sotre unused byte count in left */
            if (sz) {
                wc_AesEncrypt(aes, (byte*)aes->reg, (byte*)aes->tmp);
                IncrementAesCounter((byte*)aes->reg);

                aes->left = AES_BLOCK_SIZE;
                tmp = (byte*)aes->tmp;

                while (sz--) {
                    *(out++) = *(in++) ^ *(tmp++);
                    aes->left--;
                }
            }
        }

    #endif /* STM32F2_CRYPTO, AES-CTR block */

#endif /* WOLFSSL_AES_COUNTER */

#ifdef HAVE_AESGCM

/*
 * The IV for AES GCM, stored in struct Aes's member reg, is comprised of
 * three parts in order:
 *   1. The implicit IV. This is generated from the PRF using the shared
 *      secrets between endpoints. It is 4 bytes long.
 *   2. The explicit IV. This is set by the user of the AES. It needs to be
 *      unique for each call to encrypt. The explicit IV is shared with the
 *      other end of the transaction in the clear.
 *   3. The counter. Each block of data is encrypted with its own sequence
 *      number counter.
 */

#ifdef STM32F2_CRYPTO
    #error "STM32F2 crypto doesn't currently support AES-GCM mode"

#elif defined(HAVE_COLDFIRE_SEC)
    #error "Coldfire SEC doesn't currently support AES-GCM mode"

#endif

enum {
    CTR_SZ = 4
};


static INLINE void InitGcmCounter(byte* inOutCtr)
{
    inOutCtr[AES_BLOCK_SIZE - 4] = 0;
    inOutCtr[AES_BLOCK_SIZE - 3] = 0;
    inOutCtr[AES_BLOCK_SIZE - 2] = 0;
    inOutCtr[AES_BLOCK_SIZE - 1] = 1;
}


static INLINE void IncrementGcmCounter(byte* inOutCtr)
{
    int i;

    /* in network byte order so start at end and work back */
    for (i = AES_BLOCK_SIZE - 1; i >= AES_BLOCK_SIZE - CTR_SZ; i--) {
        if (++inOutCtr[i])  /* we're done unless we overflow */
            return;
    }
}


#if defined(GCM_SMALL) || defined(GCM_TABLE)

static INLINE void FlattenSzInBits(byte* buf, word32 sz)
{
    /* Multiply the sz by 8 */
    word32 szHi = (sz >> (8*sizeof(sz) - 3));
    sz <<= 3;

    /* copy over the words of the sz into the destination buffer */
    buf[0] = (szHi >> 24) & 0xff;
    buf[1] = (szHi >> 16) & 0xff;
    buf[2] = (szHi >>  8) & 0xff;
    buf[3] = szHi & 0xff;
    buf[4] = (sz >> 24) & 0xff;
    buf[5] = (sz >> 16) & 0xff;
    buf[6] = (sz >>  8) & 0xff;
    buf[7] = sz & 0xff;
}


static INLINE void RIGHTSHIFTX(byte* x)
{
    int i;
    int carryOut = 0;
    int carryIn = 0;
    int borrow = x[15] & 0x01;

    for (i = 0; i < AES_BLOCK_SIZE; i++) {
        carryOut = x[i] & 0x01;
        x[i] = (x[i] >> 1) | (carryIn ? 0x80 : 0);
        carryIn = carryOut;
    }
    if (borrow) x[0] ^= 0xE1;
}

#endif /* defined(GCM_SMALL) || defined(GCM_TABLE) */


#ifdef GCM_TABLE

static void GenerateM0(Aes* aes)
{
    int i, j;
    byte (*m)[AES_BLOCK_SIZE] = aes->M0;

    XMEMCPY(m[128], aes->H, AES_BLOCK_SIZE);

    for (i = 64; i > 0; i /= 2) {
        XMEMCPY(m[i], m[i*2], AES_BLOCK_SIZE);
        RIGHTSHIFTX(m[i]);
    }

    for (i = 2; i < 256; i *= 2) {
        for (j = 1; j < i; j++) {
            XMEMCPY(m[i+j], m[i], AES_BLOCK_SIZE);
            xorbuf(m[i+j], m[j], AES_BLOCK_SIZE);
        }
    }

    XMEMSET(m[0], 0, AES_BLOCK_SIZE);
}

#endif /* GCM_TABLE */


int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len)
{
    int  ret;
    byte iv[AES_BLOCK_SIZE];

    #ifdef FREESCALE_MMCAU
        byte* rk = (byte*)aes->key;
    #endif

    if (!((len == 16) || (len == 24) || (len == 32)))
        return BAD_FUNC_ARG;

    XMEMSET(iv, 0, AES_BLOCK_SIZE);
    ret = wc_AesSetKey(aes, key, len, iv, AES_ENCRYPTION);

    if (ret == 0) {
    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(iv, rk, aes->rounds, aes->H);
    #else
        wc_AesEncrypt(aes, iv, aes->H);
    #endif
    #ifdef GCM_TABLE
        GenerateM0(aes);
    #endif /* GCM_TABLE */
    }

    return ret;
}


#if defined(GCM_SMALL)

static void GMULT(byte* X, byte* Y)
{
    byte Z[AES_BLOCK_SIZE];
    byte V[AES_BLOCK_SIZE];
    int i, j;

    XMEMSET(Z, 0, AES_BLOCK_SIZE);
    XMEMCPY(V, X, AES_BLOCK_SIZE);
    for (i = 0; i < AES_BLOCK_SIZE; i++)
    {
        byte y = Y[i];
        for (j = 0; j < 8; j++)
        {
            if (y & 0x80) {
                xorbuf(Z, V, AES_BLOCK_SIZE);
            }

            RIGHTSHIFTX(V);
            y = y << 1;
        }
    }
    XMEMCPY(X, Z, AES_BLOCK_SIZE);
}


static void GHASH(Aes* aes, const byte* a, word32 aSz,
                                const byte* c, word32 cSz, byte* s, word32 sSz)
{
    byte x[AES_BLOCK_SIZE];
    byte scratch[AES_BLOCK_SIZE];
    word32 blocks, partial;
    byte* h = aes->H;

    XMEMSET(x, 0, AES_BLOCK_SIZE);

    /* Hash in A, the Additional Authentication Data */
    if (aSz != 0 && a != NULL) {
        blocks = aSz / AES_BLOCK_SIZE;
        partial = aSz % AES_BLOCK_SIZE;
        while (blocks--) {
            xorbuf(x, a, AES_BLOCK_SIZE);
            GMULT(x, h);
            a += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(scratch, 0, AES_BLOCK_SIZE);
            XMEMCPY(scratch, a, partial);
            xorbuf(x, scratch, AES_BLOCK_SIZE);
            GMULT(x, h);
        }
    }

    /* Hash in C, the Ciphertext */
    if (cSz != 0 && c != NULL) {
        blocks = cSz / AES_BLOCK_SIZE;
        partial = cSz % AES_BLOCK_SIZE;
        while (blocks--) {
            xorbuf(x, c, AES_BLOCK_SIZE);
            GMULT(x, h);
            c += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(scratch, 0, AES_BLOCK_SIZE);
            XMEMCPY(scratch, c, partial);
            xorbuf(x, scratch, AES_BLOCK_SIZE);
            GMULT(x, h);
        }
    }

    /* Hash in the lengths of A and C in bits */
    FlattenSzInBits(&scratch[0], aSz);
    FlattenSzInBits(&scratch[8], cSz);
    xorbuf(x, scratch, AES_BLOCK_SIZE);
    GMULT(x, h);

    /* Copy the result into s. */
    XMEMCPY(s, x, sSz);
}

/* end GCM_SMALL */
#elif defined(GCM_TABLE)

static const byte R[256][2] = {
    {0x00, 0x00}, {0x01, 0xc2}, {0x03, 0x84}, {0x02, 0x46},
    {0x07, 0x08}, {0x06, 0xca}, {0x04, 0x8c}, {0x05, 0x4e},
    {0x0e, 0x10}, {0x0f, 0xd2}, {0x0d, 0x94}, {0x0c, 0x56},
    {0x09, 0x18}, {0x08, 0xda}, {0x0a, 0x9c}, {0x0b, 0x5e},
    {0x1c, 0x20}, {0x1d, 0xe2}, {0x1f, 0xa4}, {0x1e, 0x66},
    {0x1b, 0x28}, {0x1a, 0xea}, {0x18, 0xac}, {0x19, 0x6e},
    {0x12, 0x30}, {0x13, 0xf2}, {0x11, 0xb4}, {0x10, 0x76},
    {0x15, 0x38}, {0x14, 0xfa}, {0x16, 0xbc}, {0x17, 0x7e},
    {0x38, 0x40}, {0x39, 0x82}, {0x3b, 0xc4}, {0x3a, 0x06},
    {0x3f, 0x48}, {0x3e, 0x8a}, {0x3c, 0xcc}, {0x3d, 0x0e},
    {0x36, 0x50}, {0x37, 0x92}, {0x35, 0xd4}, {0x34, 0x16},
    {0x31, 0x58}, {0x30, 0x9a}, {0x32, 0xdc}, {0x33, 0x1e},
    {0x24, 0x60}, {0x25, 0xa2}, {0x27, 0xe4}, {0x26, 0x26},
    {0x23, 0x68}, {0x22, 0xaa}, {0x20, 0xec}, {0x21, 0x2e},
    {0x2a, 0x70}, {0x2b, 0xb2}, {0x29, 0xf4}, {0x28, 0x36},
    {0x2d, 0x78}, {0x2c, 0xba}, {0x2e, 0xfc}, {0x2f, 0x3e},
    {0x70, 0x80}, {0x71, 0x42}, {0x73, 0x04}, {0x72, 0xc6},
    {0x77, 0x88}, {0x76, 0x4a}, {0x74, 0x0c}, {0x75, 0xce},
    {0x7e, 0x90}, {0x7f, 0x52}, {0x7d, 0x14}, {0x7c, 0xd6},
    {0x79, 0x98}, {0x78, 0x5a}, {0x7a, 0x1c}, {0x7b, 0xde},
    {0x6c, 0xa0}, {0x6d, 0x62}, {0x6f, 0x24}, {0x6e, 0xe6},
    {0x6b, 0xa8}, {0x6a, 0x6a}, {0x68, 0x2c}, {0x69, 0xee},
    {0x62, 0xb0}, {0x63, 0x72}, {0x61, 0x34}, {0x60, 0xf6},
    {0x65, 0xb8}, {0x64, 0x7a}, {0x66, 0x3c}, {0x67, 0xfe},
    {0x48, 0xc0}, {0x49, 0x02}, {0x4b, 0x44}, {0x4a, 0x86},
    {0x4f, 0xc8}, {0x4e, 0x0a}, {0x4c, 0x4c}, {0x4d, 0x8e},
    {0x46, 0xd0}, {0x47, 0x12}, {0x45, 0x54}, {0x44, 0x96},
    {0x41, 0xd8}, {0x40, 0x1a}, {0x42, 0x5c}, {0x43, 0x9e},
    {0x54, 0xe0}, {0x55, 0x22}, {0x57, 0x64}, {0x56, 0xa6},
    {0x53, 0xe8}, {0x52, 0x2a}, {0x50, 0x6c}, {0x51, 0xae},
    {0x5a, 0xf0}, {0x5b, 0x32}, {0x59, 0x74}, {0x58, 0xb6},
    {0x5d, 0xf8}, {0x5c, 0x3a}, {0x5e, 0x7c}, {0x5f, 0xbe},
    {0xe1, 0x00}, {0xe0, 0xc2}, {0xe2, 0x84}, {0xe3, 0x46},
    {0xe6, 0x08}, {0xe7, 0xca}, {0xe5, 0x8c}, {0xe4, 0x4e},
    {0xef, 0x10}, {0xee, 0xd2}, {0xec, 0x94}, {0xed, 0x56},
    {0xe8, 0x18}, {0xe9, 0xda}, {0xeb, 0x9c}, {0xea, 0x5e},
    {0xfd, 0x20}, {0xfc, 0xe2}, {0xfe, 0xa4}, {0xff, 0x66},
    {0xfa, 0x28}, {0xfb, 0xea}, {0xf9, 0xac}, {0xf8, 0x6e},
    {0xf3, 0x30}, {0xf2, 0xf2}, {0xf0, 0xb4}, {0xf1, 0x76},
    {0xf4, 0x38}, {0xf5, 0xfa}, {0xf7, 0xbc}, {0xf6, 0x7e},
    {0xd9, 0x40}, {0xd8, 0x82}, {0xda, 0xc4}, {0xdb, 0x06},
    {0xde, 0x48}, {0xdf, 0x8a}, {0xdd, 0xcc}, {0xdc, 0x0e},
    {0xd7, 0x50}, {0xd6, 0x92}, {0xd4, 0xd4}, {0xd5, 0x16},
    {0xd0, 0x58}, {0xd1, 0x9a}, {0xd3, 0xdc}, {0xd2, 0x1e},
    {0xc5, 0x60}, {0xc4, 0xa2}, {0xc6, 0xe4}, {0xc7, 0x26},
    {0xc2, 0x68}, {0xc3, 0xaa}, {0xc1, 0xec}, {0xc0, 0x2e},
    {0xcb, 0x70}, {0xca, 0xb2}, {0xc8, 0xf4}, {0xc9, 0x36},
    {0xcc, 0x78}, {0xcd, 0xba}, {0xcf, 0xfc}, {0xce, 0x3e},
    {0x91, 0x80}, {0x90, 0x42}, {0x92, 0x04}, {0x93, 0xc6},
    {0x96, 0x88}, {0x97, 0x4a}, {0x95, 0x0c}, {0x94, 0xce},
    {0x9f, 0x90}, {0x9e, 0x52}, {0x9c, 0x14}, {0x9d, 0xd6},
    {0x98, 0x98}, {0x99, 0x5a}, {0x9b, 0x1c}, {0x9a, 0xde},
    {0x8d, 0xa0}, {0x8c, 0x62}, {0x8e, 0x24}, {0x8f, 0xe6},
    {0x8a, 0xa8}, {0x8b, 0x6a}, {0x89, 0x2c}, {0x88, 0xee},
    {0x83, 0xb0}, {0x82, 0x72}, {0x80, 0x34}, {0x81, 0xf6},
    {0x84, 0xb8}, {0x85, 0x7a}, {0x87, 0x3c}, {0x86, 0xfe},
    {0xa9, 0xc0}, {0xa8, 0x02}, {0xaa, 0x44}, {0xab, 0x86},
    {0xae, 0xc8}, {0xaf, 0x0a}, {0xad, 0x4c}, {0xac, 0x8e},
    {0xa7, 0xd0}, {0xa6, 0x12}, {0xa4, 0x54}, {0xa5, 0x96},
    {0xa0, 0xd8}, {0xa1, 0x1a}, {0xa3, 0x5c}, {0xa2, 0x9e},
    {0xb5, 0xe0}, {0xb4, 0x22}, {0xb6, 0x64}, {0xb7, 0xa6},
    {0xb2, 0xe8}, {0xb3, 0x2a}, {0xb1, 0x6c}, {0xb0, 0xae},
    {0xbb, 0xf0}, {0xba, 0x32}, {0xb8, 0x74}, {0xb9, 0xb6},
    {0xbc, 0xf8}, {0xbd, 0x3a}, {0xbf, 0x7c}, {0xbe, 0xbe} };


static void GMULT(byte *x, byte m[256][AES_BLOCK_SIZE])
{
    int i, j;
    byte Z[AES_BLOCK_SIZE];
    byte a;

    XMEMSET(Z, 0, sizeof(Z));

    for (i = 15; i > 0; i--) {
        xorbuf(Z, m[x[i]], AES_BLOCK_SIZE);
        a = Z[15];

        for (j = 15; j > 0; j--) {
            Z[j] = Z[j-1];
        }

        Z[0] = R[a][0];
        Z[1] ^= R[a][1];
    }
    xorbuf(Z, m[x[0]], AES_BLOCK_SIZE);

    XMEMCPY(x, Z, AES_BLOCK_SIZE);
}


static void GHASH(Aes* aes, const byte* a, word32 aSz,
                                const byte* c, word32 cSz, byte* s, word32 sSz)
{
    byte x[AES_BLOCK_SIZE];
    byte scratch[AES_BLOCK_SIZE];
    word32 blocks, partial;

    XMEMSET(x, 0, AES_BLOCK_SIZE);

    /* Hash in A, the Additional Authentication Data */
    if (aSz != 0 && a != NULL) {
        blocks = aSz / AES_BLOCK_SIZE;
        partial = aSz % AES_BLOCK_SIZE;
        while (blocks--) {
            xorbuf(x, a, AES_BLOCK_SIZE);
            GMULT(x, aes->M0);
            a += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(scratch, 0, AES_BLOCK_SIZE);
            XMEMCPY(scratch, a, partial);
            xorbuf(x, scratch, AES_BLOCK_SIZE);
            GMULT(x, aes->M0);
        }
    }

    /* Hash in C, the Ciphertext */
    if (cSz != 0 && c != NULL) {
        blocks = cSz / AES_BLOCK_SIZE;
        partial = cSz % AES_BLOCK_SIZE;
        while (blocks--) {
            xorbuf(x, c, AES_BLOCK_SIZE);
            GMULT(x, aes->M0);
            c += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(scratch, 0, AES_BLOCK_SIZE);
            XMEMCPY(scratch, c, partial);
            xorbuf(x, scratch, AES_BLOCK_SIZE);
            GMULT(x, aes->M0);
        }
    }

    /* Hash in the lengths of A and C in bits */
    FlattenSzInBits(&scratch[0], aSz);
    FlattenSzInBits(&scratch[8], cSz);
    xorbuf(x, scratch, AES_BLOCK_SIZE);
    GMULT(x, aes->M0);

    /* Copy the result into s. */
    XMEMCPY(s, x, sSz);
}

/* end GCM_TABLE */
#elif defined(WORD64_AVAILABLE) && !defined(GCM_WORD32)

static void GMULT(word64* X, word64* Y)
{
    word64 Z[2] = {0,0};
    word64 V[2] ; 
    int i, j;
    V[0] = X[0] ;  V[1] = X[1] ;

    for (i = 0; i < 2; i++)
    {
        word64 y = Y[i];
        for (j = 0; j < 64; j++)
        {
            if (y & 0x8000000000000000ULL) {
                Z[0] ^= V[0];
                Z[1] ^= V[1];
            }

            if (V[1] & 0x0000000000000001) {
                V[1] >>= 1;
                V[1] |= ((V[0] & 0x0000000000000001) ? 0x8000000000000000ULL : 0);
                V[0] >>= 1;
                V[0] ^= 0xE100000000000000ULL;
            }
            else {
                V[1] >>= 1;
                V[1] |= ((V[0] & 0x0000000000000001) ? 0x8000000000000000ULL : 0);
                V[0] >>= 1;
            }
            y <<= 1;
        }
    }
    X[0] = Z[0];
    X[1] = Z[1];
}


static void GHASH(Aes* aes, const byte* a, word32 aSz,
                                const byte* c, word32 cSz, byte* s, word32 sSz)
{
    word64 x[2] = {0,0};
    word32 blocks, partial;
    word64 bigH[2];

    XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE);
    #ifdef LITTLE_ENDIAN_ORDER
        ByteReverseWords64(bigH, bigH, AES_BLOCK_SIZE); 
    #endif

    /* Hash in A, the Additional Authentication Data */
    if (aSz != 0 && a != NULL) {
        word64 bigA[2];
        blocks = aSz / AES_BLOCK_SIZE;
        partial = aSz % AES_BLOCK_SIZE;
        while (blocks--) {
            XMEMCPY(bigA, a, AES_BLOCK_SIZE);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigA[0];
            x[1] ^= bigA[1];
            GMULT(x, bigH);
            a += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(bigA, 0, AES_BLOCK_SIZE);
            XMEMCPY(bigA, a, partial);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigA[0];
            x[1] ^= bigA[1];
            GMULT(x, bigH);
        }
    }

    /* Hash in C, the Ciphertext */
    if (cSz != 0 && c != NULL) {
        word64 bigC[2];
        blocks = cSz / AES_BLOCK_SIZE;
        partial = cSz % AES_BLOCK_SIZE;
        while (blocks--) {
            XMEMCPY(bigC, c, AES_BLOCK_SIZE);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigC[0];
            x[1] ^= bigC[1];
            GMULT(x, bigH);
            c += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(bigC, 0, AES_BLOCK_SIZE);
            XMEMCPY(bigC, c, partial);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigC[0];
            x[1] ^= bigC[1];
            GMULT(x, bigH);
        }
    }

    /* Hash in the lengths in bits of A and C */
    {
        word64 len[2] ; 
        len[0] = aSz ; len[1] = cSz;

        /* Lengths are in bytes. Convert to bits. */
        len[0] *= 8;
        len[1] *= 8;

        x[0] ^= len[0];
        x[1] ^= len[1];
        GMULT(x, bigH);
    }
    #ifdef LITTLE_ENDIAN_ORDER
        ByteReverseWords64(x, x, AES_BLOCK_SIZE);
    #endif
    XMEMCPY(s, x, sSz);
}

/* end defined(WORD64_AVAILABLE) && !defined(GCM_WORD32) */
#else /* GCM_WORD32 */

static void GMULT(word32* X, word32* Y)
{
    word32 Z[4] = {0,0,0,0};
    word32 V[4] ;
    int i, j;

    V[0] = X[0];  V[1] = X[1]; V[2] =  X[2]; V[3] =  X[3];

    for (i = 0; i < 4; i++)
    {
        word32 y = Y[i];
        for (j = 0; j < 32; j++)
        {
            if (y & 0x80000000) {
                Z[0] ^= V[0];
                Z[1] ^= V[1];
                Z[2] ^= V[2];
                Z[3] ^= V[3];
            }

            if (V[3] & 0x00000001) {
                V[3] >>= 1;
                V[3] |= ((V[2] & 0x00000001) ? 0x80000000 : 0);
                V[2] >>= 1;
                V[2] |= ((V[1] & 0x00000001) ? 0x80000000 : 0);
                V[1] >>= 1;
                V[1] |= ((V[0] & 0x00000001) ? 0x80000000 : 0);
                V[0] >>= 1;
                V[0] ^= 0xE1000000;
            } else {
                V[3] >>= 1;
                V[3] |= ((V[2] & 0x00000001) ? 0x80000000 : 0);
                V[2] >>= 1;
                V[2] |= ((V[1] & 0x00000001) ? 0x80000000 : 0);
                V[1] >>= 1;
                V[1] |= ((V[0] & 0x00000001) ? 0x80000000 : 0);
                V[0] >>= 1;
            }
            y <<= 1;
        }
    }
    X[0] = Z[0];
    X[1] = Z[1];
    X[2] = Z[2];
    X[3] = Z[3];
}


static void GHASH(Aes* aes, const byte* a, word32 aSz,
                                const byte* c, word32 cSz, byte* s, word32 sSz)
{
    word32 x[4] = {0,0,0,0};
    word32 blocks, partial;
    word32 bigH[4];

    XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE);
    #ifdef LITTLE_ENDIAN_ORDER
        ByteReverseWords(bigH, bigH, AES_BLOCK_SIZE);
    #endif

    /* Hash in A, the Additional Authentication Data */
    if (aSz != 0 && a != NULL) {
        word32 bigA[4];
        blocks = aSz / AES_BLOCK_SIZE;
        partial = aSz % AES_BLOCK_SIZE;
        while (blocks--) {
            XMEMCPY(bigA, a, AES_BLOCK_SIZE);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigA[0];
            x[1] ^= bigA[1];
            x[2] ^= bigA[2];
            x[3] ^= bigA[3];
            GMULT(x, bigH);
            a += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(bigA, 0, AES_BLOCK_SIZE);
            XMEMCPY(bigA, a, partial);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigA[0];
            x[1] ^= bigA[1];
            x[2] ^= bigA[2];
            x[3] ^= bigA[3];
            GMULT(x, bigH);
        }
    }

    /* Hash in C, the Ciphertext */
    if (cSz != 0 && c != NULL) {
        word32 bigC[4];
        blocks = cSz / AES_BLOCK_SIZE;
        partial = cSz % AES_BLOCK_SIZE;
        while (blocks--) {
            XMEMCPY(bigC, c, AES_BLOCK_SIZE);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigC[0];
            x[1] ^= bigC[1];
            x[2] ^= bigC[2];
            x[3] ^= bigC[3];
            GMULT(x, bigH);
            c += AES_BLOCK_SIZE;
        }
        if (partial != 0) {
            XMEMSET(bigC, 0, AES_BLOCK_SIZE);
            XMEMCPY(bigC, c, partial);
            #ifdef LITTLE_ENDIAN_ORDER
                ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE);
            #endif
            x[0] ^= bigC[0];
            x[1] ^= bigC[1];
            x[2] ^= bigC[2];
            x[3] ^= bigC[3];
            GMULT(x, bigH);
        }
    }

    /* Hash in the lengths in bits of A and C */
    {
        word32 len[4];

        /* Lengths are in bytes. Convert to bits. */
        len[0] = (aSz >> (8*sizeof(aSz) - 3));
        len[1] = aSz << 3;
        len[2] = (cSz >> (8*sizeof(cSz) - 3));
        len[3] = cSz << 3;

        x[0] ^= len[0];
        x[1] ^= len[1];
        x[2] ^= len[2];
        x[3] ^= len[3];
        GMULT(x, bigH);
    }
    #ifdef LITTLE_ENDIAN_ORDER
        ByteReverseWords(x, x, AES_BLOCK_SIZE);
    #endif
    XMEMCPY(s, x, sSz);
}

#endif /* end GCM_WORD32 */


int wc_AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz,
                   const byte* iv, word32 ivSz,
                   byte* authTag, word32 authTagSz,
                   const byte* authIn, word32 authInSz)
{
    word32 blocks = sz / AES_BLOCK_SIZE;
    word32 partial = sz % AES_BLOCK_SIZE;
    const byte* p = in;
    byte* c = out;
    byte counter[AES_BLOCK_SIZE];
    byte *ctr ;
    byte scratch[AES_BLOCK_SIZE];

#ifdef FREESCALE_MMCAU
    byte* key = (byte*)aes->key;
#endif

    WOLFSSL_ENTER("AesGcmEncrypt");

#ifdef WOLFSSL_PIC32MZ_CRYPT
    ctr = (char *)aes->iv_ce ;
#else
    ctr = counter ;
#endif

    XMEMSET(ctr, 0, AES_BLOCK_SIZE);
    XMEMCPY(ctr, iv, ivSz);
    InitGcmCounter(ctr);

#ifdef WOLFSSL_PIC32MZ_CRYPT
    if(blocks)
        wc_AesCrypt(aes, out, in, blocks*AES_BLOCK_SIZE,
             PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_AES_GCM );
#endif
    while (blocks--) {
        IncrementGcmCounter(ctr);
        #ifndef WOLFSSL_PIC32MZ_CRYPT
            #ifdef FREESCALE_MMCAU
                cau_aes_encrypt(ctr, key, aes->rounds, scratch);
            #else
                wc_AesEncrypt(aes, ctr, scratch);
            #endif
        xorbuf(scratch, p, AES_BLOCK_SIZE);
        XMEMCPY(c, scratch, AES_BLOCK_SIZE);
        #endif
        p += AES_BLOCK_SIZE;
        c += AES_BLOCK_SIZE;
    }

    if (partial != 0) {
        IncrementGcmCounter(ctr);
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(ctr, key, aes->rounds, scratch);
        #else
            wc_AesEncrypt(aes, ctr, scratch);
        #endif
        xorbuf(scratch, p, partial);
        XMEMCPY(c, scratch, partial);

    }

    GHASH(aes, authIn, authInSz, out, sz, authTag, authTagSz);
    InitGcmCounter(ctr);
    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(ctr, key, aes->rounds, scratch);
    #else
        wc_AesEncrypt(aes, ctr, scratch);
    #endif
    xorbuf(authTag, scratch, authTagSz);

    return 0;
}


int  wc_AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
                   const byte* iv, word32 ivSz,
                   const byte* authTag, word32 authTagSz,
                   const byte* authIn, word32 authInSz)
{
    word32 blocks = sz / AES_BLOCK_SIZE;
    word32 partial = sz % AES_BLOCK_SIZE;
    const byte* c = in;
    byte* p = out;
    byte counter[AES_BLOCK_SIZE];
    byte *ctr ;
    byte scratch[AES_BLOCK_SIZE];

#ifdef FREESCALE_MMCAU
    byte* key = (byte*)aes->key;
#endif

    WOLFSSL_ENTER("AesGcmDecrypt");

#ifdef WOLFSSL_PIC32MZ_CRYPT
    ctr = (char *)aes->iv_ce ;
#else
    ctr = counter ;
#endif

    XMEMSET(ctr, 0, AES_BLOCK_SIZE);
    XMEMCPY(ctr, iv, ivSz);
    InitGcmCounter(ctr);

    /* Calculate the authTag again using the received auth data and the
     * cipher text. */
    {
        byte Tprime[AES_BLOCK_SIZE];
        byte EKY0[AES_BLOCK_SIZE];

        GHASH(aes, authIn, authInSz, in, sz, Tprime, sizeof(Tprime));
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(ctr, key, aes->rounds, EKY0);
        #else
            wc_AesEncrypt(aes, ctr, EKY0);
        #endif
        xorbuf(Tprime, EKY0, sizeof(Tprime));

        if (ConstantCompare(authTag, Tprime, authTagSz) != 0) {
            return AES_GCM_AUTH_E;
        }
    }

#ifdef WOLFSSL_PIC32MZ_CRYPT
    if(blocks)
        wc_AesCrypt(aes, out, in, blocks*AES_BLOCK_SIZE,
             PIC32_DECRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_AES_GCM );
#endif

    while (blocks--) {
        IncrementGcmCounter(ctr);
        #ifndef WOLFSSL_PIC32MZ_CRYPT
            #ifdef FREESCALE_MMCAU
                cau_aes_encrypt(ctr, key, aes->rounds, scratch);
            #else
                wc_AesEncrypt(aes, ctr, scratch);
            #endif
        xorbuf(scratch, c, AES_BLOCK_SIZE);
        XMEMCPY(p, scratch, AES_BLOCK_SIZE);
        #endif
        p += AES_BLOCK_SIZE;
        c += AES_BLOCK_SIZE;
    }
    if (partial != 0) {
        IncrementGcmCounter(ctr);
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(ctr, key, aes->rounds, scratch);
        #else
            wc_AesEncrypt(aes, ctr, scratch);
        #endif
        xorbuf(scratch, c, partial);
        XMEMCPY(p, scratch, partial);
    }
    return 0;
}



WOLFSSL_API int wc_GmacSetKey(Gmac* gmac, const byte* key, word32 len)
{
    return wc_AesGcmSetKey(&gmac->aes, key, len);
}


WOLFSSL_API int wc_GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz,
                              const byte* authIn, word32 authInSz,
                              byte* authTag, word32 authTagSz)
{
    return wc_AesGcmEncrypt(&gmac->aes, NULL, NULL, 0, iv, ivSz,
                                         authTag, authTagSz, authIn, authInSz);
}

#endif /* HAVE_AESGCM */


#ifdef HAVE_AESCCM

#ifdef STM32F2_CRYPTO
    #error "STM32F2 crypto doesn't currently support AES-CCM mode"

#elif defined(HAVE_COLDFIRE_SEC)
    #error "Coldfire SEC doesn't currently support AES-CCM mode"

#elif defined(WOLFSSL_PIC32MZ_CRYPT)
    #error "PIC32MZ doesn't currently support AES-CCM mode"

#endif

void wc_AesCcmSetKey(Aes* aes, const byte* key, word32 keySz)
{
    byte nonce[AES_BLOCK_SIZE];

    if (!((keySz == 16) || (keySz == 24) || (keySz == 32)))
        return;

    XMEMSET(nonce, 0, sizeof(nonce));
    wc_AesSetKey(aes, key, keySz, nonce, AES_ENCRYPTION);
}


static void roll_x(Aes* aes, const byte* in, word32 inSz, byte* out)
{
    #ifdef FREESCALE_MMCAU
        byte* key = (byte*)aes->key;
    #endif

    /* process the bulk of the data */
    while (inSz >= AES_BLOCK_SIZE) {
        xorbuf(out, in, AES_BLOCK_SIZE);
        in += AES_BLOCK_SIZE;
        inSz -= AES_BLOCK_SIZE;

        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(out, key, aes->rounds, out);
        #else
            wc_AesEncrypt(aes, out, out);
        #endif
    }

    /* process remainder of the data */
    if (inSz > 0) {
        xorbuf(out, in, inSz);
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(out, key, aes->rounds, out);
        #else
            wc_AesEncrypt(aes, out, out);
        #endif
    }
}


static void roll_auth(Aes* aes, const byte* in, word32 inSz, byte* out)
{
    word32 authLenSz;
    word32 remainder;

    #ifdef FREESCALE_MMCAU
        byte* key = (byte*)aes->key;
    #endif

    /* encode the length in */
    if (inSz <= 0xFEFF) {
        authLenSz = 2;
        out[0] ^= ((inSz & 0xFF00) >> 8);
        out[1] ^=  (inSz & 0x00FF);
    }
    else if (inSz <= 0xFFFFFFFF) {
        authLenSz = 6;
        out[0] ^= 0xFF; out[1] ^= 0xFE;
        out[2] ^= ((inSz & 0xFF000000) >> 24);
        out[3] ^= ((inSz & 0x00FF0000) >> 16);
        out[4] ^= ((inSz & 0x0000FF00) >>  8);
        out[5] ^=  (inSz & 0x000000FF);
    }
    /* Note, the protocol handles auth data up to 2^64, but we are
     * using 32-bit sizes right now, so the bigger data isn't handled
     * else if (inSz <= 0xFFFFFFFFFFFFFFFF) {} */
    else
        return;

    /* start fill out the rest of the first block */
    remainder = AES_BLOCK_SIZE - authLenSz;
    if (inSz >= remainder) {
        /* plenty of bulk data to fill the remainder of this block */
        xorbuf(out + authLenSz, in, remainder);
        inSz -= remainder;
        in += remainder;
    }
    else {
        /* not enough bulk data, copy what is available, and pad zero */
        xorbuf(out + authLenSz, in, inSz);
        inSz = 0;
    }
    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(out, key, aes->rounds, out);
    #else
        wc_AesEncrypt(aes, out, out);
    #endif

    if (inSz > 0)
        roll_x(aes, in, inSz, out);
}


static INLINE void AesCcmCtrInc(byte* B, word32 lenSz)
{
    word32 i;

    for (i = 0; i < lenSz; i++) {
        if (++B[AES_BLOCK_SIZE - 1 - i] != 0) return;
    }
}


void wc_AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
                   const byte* nonce, word32 nonceSz,
                   byte* authTag, word32 authTagSz,
                   const byte* authIn, word32 authInSz)
{
    byte A[AES_BLOCK_SIZE];
    byte B[AES_BLOCK_SIZE];
    byte lenSz;
    word32 i;

    #ifdef FREESCALE_MMCAU
        byte* key = (byte*)aes->key;
    #endif

    XMEMCPY(B+1, nonce, nonceSz);
    lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz;
    B[0] = (authInSz > 0 ? 64 : 0)
         + (8 * (((byte)authTagSz - 2) / 2))
         + (lenSz - 1);
    for (i = 0; i < lenSz; i++)
        B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF;

    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(B, key, aes->rounds, A);
    #else
        wc_AesEncrypt(aes, B, A);
    #endif
    if (authInSz > 0)
        roll_auth(aes, authIn, authInSz, A);
    if (inSz > 0)
        roll_x(aes, in, inSz, A);
    XMEMCPY(authTag, A, authTagSz);

    B[0] = lenSz - 1;
    for (i = 0; i < lenSz; i++)
        B[AES_BLOCK_SIZE - 1 - i] = 0;
    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(B, key, aes->rounds, A);
    #else
        wc_AesEncrypt(aes, B, A);
    #endif
    xorbuf(authTag, A, authTagSz);

    B[15] = 1;
    while (inSz >= AES_BLOCK_SIZE) {
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(B, key, aes->rounds, A);
        #else
            wc_AesEncrypt(aes, B, A);
        #endif
        xorbuf(A, in, AES_BLOCK_SIZE);
        XMEMCPY(out, A, AES_BLOCK_SIZE);

        AesCcmCtrInc(B, lenSz);
        inSz -= AES_BLOCK_SIZE;
        in += AES_BLOCK_SIZE;
        out += AES_BLOCK_SIZE;
    }
    if (inSz > 0) {
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(B, key, aes->rounds, A);
        #else
            wc_AesEncrypt(aes, B, A);
        #endif
        xorbuf(A, in, inSz);
        XMEMCPY(out, A, inSz);
    }

    ForceZero(A, AES_BLOCK_SIZE);
    ForceZero(B, AES_BLOCK_SIZE);
}


int  wc_AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
                   const byte* nonce, word32 nonceSz,
                   const byte* authTag, word32 authTagSz,
                   const byte* authIn, word32 authInSz)
{
    byte A[AES_BLOCK_SIZE];
    byte B[AES_BLOCK_SIZE];
    byte* o;
    byte lenSz;
    word32 i, oSz;
    int result = 0;

    #ifdef FREESCALE_MMCAU
        byte* key = (byte*)aes->key;
    #endif

    o = out;
    oSz = inSz;
    XMEMCPY(B+1, nonce, nonceSz);
    lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz;

    B[0] = lenSz - 1;
    for (i = 0; i < lenSz; i++)
        B[AES_BLOCK_SIZE - 1 - i] = 0;
    B[15] = 1;

    while (oSz >= AES_BLOCK_SIZE) {
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(B, key, aes->rounds, A);
        #else
            wc_AesEncrypt(aes, B, A);
        #endif
        xorbuf(A, in, AES_BLOCK_SIZE);
        XMEMCPY(o, A, AES_BLOCK_SIZE);

        AesCcmCtrInc(B, lenSz);
        oSz -= AES_BLOCK_SIZE;
        in += AES_BLOCK_SIZE;
        o += AES_BLOCK_SIZE;
    }
    if (inSz > 0) {
        #ifdef FREESCALE_MMCAU
            cau_aes_encrypt(B, key, aes->rounds, A);
        #else
            wc_AesEncrypt(aes, B, A);
        #endif
        xorbuf(A, in, oSz);
        XMEMCPY(o, A, oSz);
    }

    for (i = 0; i < lenSz; i++)
        B[AES_BLOCK_SIZE - 1 - i] = 0;
    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(B, key, aes->rounds, A);
    #else
        wc_AesEncrypt(aes, B, A);
    #endif

    o = out;
    oSz = inSz;

    B[0] = (authInSz > 0 ? 64 : 0)
         + (8 * (((byte)authTagSz - 2) / 2))
         + (lenSz - 1);
    for (i = 0; i < lenSz; i++)
        B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF;

    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(B, key, aes->rounds, A);
    #else
        wc_AesEncrypt(aes, B, A);
    #endif
    if (authInSz > 0)
        roll_auth(aes, authIn, authInSz, A);
    if (inSz > 0)
        roll_x(aes, o, oSz, A);

    B[0] = lenSz - 1;
    for (i = 0; i < lenSz; i++)
        B[AES_BLOCK_SIZE - 1 - i] = 0;
    #ifdef FREESCALE_MMCAU
        cau_aes_encrypt(B, key, aes->rounds, B);
    #else
        wc_AesEncrypt(aes, B, B);
    #endif
    xorbuf(A, B, authTagSz);

    if (ConstantCompare(A, authTag, authTagSz) != 0) {
        /* If the authTag check fails, don't keep the decrypted data.
         * Unfortunately, you need the decrypted data to calculate the
         * check value. */
        XMEMSET(out, 0, inSz);
        result = AES_CCM_AUTH_E;
    }

    ForceZero(A, AES_BLOCK_SIZE);
    ForceZero(B, AES_BLOCK_SIZE);
    o = NULL;

    return result;
}

#endif /* HAVE_AESCCM */


#ifdef HAVE_CAVIUM

#include <wolfssl/ctaocrypt/logging.h>
#include "cavium_common.h"

/* Initiliaze Aes for use with Nitrox device */
int wc_AesInitCavium(Aes* aes, int devId)
{
    if (aes == NULL)
        return -1;

    if (CspAllocContext(CONTEXT_SSL, &aes->contextHandle, devId) != 0)
        return -1;

    aes->devId = devId;
    aes->magic = WOLFSSL_AES_CAVIUM_MAGIC;

    return 0;
}


/* Free Aes from use with Nitrox device */
void wc_AesFreeCavium(Aes* aes)
{
    if (aes == NULL)
        return;

    if (aes->magic != WOLFSSL_AES_CAVIUM_MAGIC)
        return;

    CspFreeContext(CONTEXT_SSL, aes->contextHandle, aes->devId);
    aes->magic = 0;
}


static int wc_AesCaviumSetKey(Aes* aes, const byte* key, word32 length,
                           const byte* iv)
{
    if (aes == NULL)
        return -1;

    XMEMCPY(aes->key, key, length);   /* key still holds key, iv still in reg */
    if (length == 16)
        aes->type = AES_128;
    else if (length == 24)
        aes->type = AES_192;
    else if (length == 32)
        aes->type = AES_256;

    return wc_AesSetIV(aes, iv);
}


static int AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in,
                               word32 length)
{
    wolfssl_word offset = 0;
    word32 requestId;

    while (length > WOLFSSL_MAX_16BIT) {
        word16 slen = (word16)WOLFSSL_MAX_16BIT;
        if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
                          aes->type, slen, (byte*)in + offset, out + offset,
                          (byte*)aes->reg, (byte*)aes->key, &requestId,
                          aes->devId) != 0) {
            WOLFSSL_MSG("Bad Cavium Aes Encrypt");
            return -1;
        }
        length -= WOLFSSL_MAX_16BIT;
        offset += WOLFSSL_MAX_16BIT;
        XMEMCPY(aes->reg, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
    }
    if (length) {
        word16 slen = (word16)length;
        if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
                          aes->type, slen, (byte*)in + offset, out + offset,
                          (byte*)aes->reg, (byte*)aes->key, &requestId,
                          aes->devId) != 0) {
            WOLFSSL_MSG("Bad Cavium Aes Encrypt");
            return -1;
        }
        XMEMCPY(aes->reg, out + offset+length - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
    }
    return 0;
}

static int AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in,
                               word32 length)
{
    word32 requestId;
    wolfssl_word offset = 0;

    while (length > WOLFSSL_MAX_16BIT) {
        word16 slen = (word16)WOLFSSL_MAX_16BIT;
        XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
        if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
                          aes->type, slen, (byte*)in + offset, out + offset,
                          (byte*)aes->reg, (byte*)aes->key, &requestId,
                          aes->devId) != 0) {
            WOLFSSL_MSG("Bad Cavium Aes Decrypt");
            return -1;
        }
        length -= WOLFSSL_MAX_16BIT;
        offset += WOLFSSL_MAX_16BIT;
        XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
    }
    if (length) {
        word16 slen = (word16)length;
        XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
        if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE,
                          aes->type, slen, (byte*)in + offset, out + offset,
                          (byte*)aes->reg, (byte*)aes->key, &requestId,
                          aes->devId) != 0) {
            WOLFSSL_MSG("Bad Cavium Aes Decrypt");
            return -1;
        }
        XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
    }
    return 0;
}

#endif /* HAVE_CAVIUM */

#endif /* HAVE_FIPS */

#endif /* NO_AES */
