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nest-open-source / nest-detect / 1.3 / freertos / f6ac1b304282ee68988cd1f8a4f6c38d101c5782 / . / FreeRTOS-Plus / Source / WolfSSL / wolfcrypt / src / aes.c
blob: 85f01a0d1eaf547b681ef483fbca13096f1a8324 [file] [log] [blame]
/* 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 */
#ifdef WOLFSSL_TI_CRYPT
#include <wolfcrypt/src/port/ti/ti-aes.c>
#else
#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,
0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U,
0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU,
0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U,
0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU,
0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U,
0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U,
0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U,
0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU,
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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)
{
wc_AesEncrypt(aes, in, out);
}
/* Allow direct access to one block decrypt */
void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in)
{
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;