196 lines
6.5 KiB
C
196 lines
6.5 KiB
C
/* aes.h
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*
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* Copyright (C) 2006-2016 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef WOLF_CRYPT_AES_H
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#define WOLF_CRYPT_AES_H
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#include <wolfssl/wolfcrypt/types.h>
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#ifndef NO_AES
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/* included for fips @wc_fips */
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#ifdef HAVE_FIPS
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#include <cyassl/ctaocrypt/aes.h>
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#if defined(CYASSL_AES_COUNTER) && !defined(WOLFSSL_AES_COUNTER)
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#define WOLFSSL_AES_COUNTER
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#endif
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#if !defined(WOLFSSL_AES_DIRECT) && defined(CYASSL_AES_DIRECT)
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#define WOLFSSL_AES_DIRECT
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#endif
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#endif
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#ifndef HAVE_FIPS /* to avoid redefinition of macros */
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#ifdef WOLFSSL_AESNI
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#include <wmmintrin.h>
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#include <emmintrin.h>
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#include <smmintrin.h>
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#endif /* WOLFSSL_AESNI */
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#endif /* HAVE_FIPS */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef HAVE_FIPS /* to avoid redefinition of structures */
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#ifdef WOLFSSL_ASYNC_CRYPT
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#include <wolfssl/wolfcrypt/async.h>
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#endif
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enum {
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AES_ENC_TYPE = 1, /* cipher unique type */
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AES_ENCRYPTION = 0,
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AES_DECRYPTION = 1,
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KEYWRAP_BLOCK_SIZE = 8,
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AES_BLOCK_SIZE = 16
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};
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typedef struct Aes {
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/* AESNI needs key first, rounds 2nd, not sure why yet */
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ALIGN16 word32 key[60];
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word32 rounds;
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ALIGN16 word32 reg[AES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
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ALIGN16 word32 tmp[AES_BLOCK_SIZE / sizeof(word32)]; /* same */
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#ifdef HAVE_AESGCM
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ALIGN16 byte H[AES_BLOCK_SIZE];
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#ifdef GCM_TABLE
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/* key-based fast multiplication table. */
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ALIGN16 byte M0[256][AES_BLOCK_SIZE];
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#endif /* GCM_TABLE */
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#endif /* HAVE_AESGCM */
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#ifdef WOLFSSL_AESNI
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byte use_aesni;
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#endif /* WOLFSSL_AESNI */
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#ifdef WOLFSSL_ASYNC_CRYPT
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AsyncCryptDev asyncDev;
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#ifdef HAVE_CAVIUM
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AesType type; /* aes key type */
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#endif
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#endif /* WOLFSSL_ASYNC_CRYPT */
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#ifdef WOLFSSL_AES_COUNTER
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word32 left; /* unused bytes left from last call */
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#endif
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#ifdef WOLFSSL_PIC32MZ_CRYPT
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word32 key_ce[AES_BLOCK_SIZE*2/sizeof(word32)] ;
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word32 iv_ce [AES_BLOCK_SIZE /sizeof(word32)] ;
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int keylen ;
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#endif
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#ifdef WOLFSSL_TI_CRYPT
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int keylen ;
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#endif
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void* heap; /* memory hint to use */
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} Aes;
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#ifdef HAVE_AESGCM
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typedef struct Gmac {
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Aes aes;
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} Gmac;
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#endif /* HAVE_AESGCM */
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#endif /* HAVE_FIPS */
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WOLFSSL_LOCAL int wc_InitAes_h(Aes* aes, void* h);
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WOLFSSL_API int wc_AesSetKey(Aes* aes, const byte* key, word32 len,
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const byte* iv, int dir);
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WOLFSSL_API int wc_AesSetIV(Aes* aes, const byte* iv);
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WOLFSSL_API int wc_AesCbcEncrypt(Aes* aes, byte* out,
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const byte* in, word32 sz);
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WOLFSSL_API int wc_AesCbcDecrypt(Aes* aes, byte* out,
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const byte* in, word32 sz);
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/* AES-CTR */
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#ifdef WOLFSSL_AES_COUNTER
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WOLFSSL_API void wc_AesCtrEncrypt(Aes* aes, byte* out,
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const byte* in, word32 sz);
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#endif
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/* AES-DIRECT */
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#if defined(WOLFSSL_AES_DIRECT)
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WOLFSSL_API void wc_AesEncryptDirect(Aes* aes, byte* out, const byte* in);
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WOLFSSL_API void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in);
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WOLFSSL_API int wc_AesSetKeyDirect(Aes* aes, const byte* key, word32 len,
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const byte* iv, int dir);
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#endif
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#ifdef HAVE_AESGCM
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WOLFSSL_API int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len);
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WOLFSSL_API int wc_AesGcmEncrypt(Aes* aes, byte* out,
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const byte* in, word32 sz,
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const byte* iv, word32 ivSz,
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byte* authTag, word32 authTagSz,
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const byte* authIn, word32 authInSz);
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WOLFSSL_API int wc_AesGcmDecrypt(Aes* aes, byte* out,
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const byte* in, word32 sz,
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const byte* iv, word32 ivSz,
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const byte* authTag, word32 authTagSz,
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const byte* authIn, word32 authInSz);
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WOLFSSL_API int wc_GmacSetKey(Gmac* gmac, const byte* key, word32 len);
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WOLFSSL_API int wc_GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz,
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const byte* authIn, word32 authInSz,
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byte* authTag, word32 authTagSz);
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#endif /* HAVE_AESGCM */
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#ifdef HAVE_AESCCM
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WOLFSSL_API int wc_AesCcmSetKey(Aes* aes, const byte* key, word32 keySz);
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WOLFSSL_API int wc_AesCcmEncrypt(Aes* aes, byte* out,
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const byte* in, word32 inSz,
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const byte* nonce, word32 nonceSz,
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byte* authTag, word32 authTagSz,
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const byte* authIn, word32 authInSz);
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WOLFSSL_API int wc_AesCcmDecrypt(Aes* aes, byte* out,
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const byte* in, word32 inSz,
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const byte* nonce, word32 nonceSz,
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const byte* authTag, word32 authTagSz,
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const byte* authIn, word32 authInSz);
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#endif /* HAVE_AESCCM */
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#ifdef HAVE_AES_KEYWRAP
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WOLFSSL_API int wc_AesKeyWrap(const byte* key, word32 keySz,
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const byte* in, word32 inSz,
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byte* out, word32 outSz,
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const byte* iv);
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WOLFSSL_API int wc_AesKeyUnWrap(const byte* key, word32 keySz,
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const byte* in, word32 inSz,
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byte* out, word32 outSz,
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const byte* iv);
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#endif /* HAVE_AES_KEYWRAP */
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WOLFSSL_API int wc_AesGetKeySize(Aes* aes, word32* keySize);
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#ifdef WOLFSSL_ASYNC_CRYPT
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WOLFSSL_API int wc_AesAsyncInit(Aes*, int);
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WOLFSSL_API void wc_AesAsyncFree(Aes*);
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#endif
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* NO_AES */
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#endif /* WOLF_CRYPT_AES_H */
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