155 lines
4.9 KiB
C
155 lines
4.9 KiB
C
/* aes.h
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*
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* Copyright (C) 2006-2013 wolfSSL Inc.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL 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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* CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef NO_AES
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#ifndef CTAO_CRYPT_AES_H
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#define CTAO_CRYPT_AES_H
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#include <cyassl/ctaocrypt/types.h>
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#ifdef HAVE_CAVIUM
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#include <cyassl/ctaocrypt/logging.h>
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#include "cavium_common.h"
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#endif
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#ifdef CYASSL_AESNI
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#include <wmmintrin.h>
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#if !defined (ALIGN16)
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#if defined (__GNUC__)
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#define ALIGN16 __attribute__ ( (aligned (16)))
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#elif defined(_MSC_VER)
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#define ALIGN16 __declspec (align (16))
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#else
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#define ALIGN16
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#endif
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#endif
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#endif /* CYASSL_AESNI */
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#if !defined (ALIGN16)
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#define ALIGN16
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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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#define CYASSL_AES_CAVIUM_MAGIC 0xBEEF0002
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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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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 CYASSL_AESNI
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byte use_aesni;
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#endif /* CYASSL_AESNI */
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#ifdef HAVE_CAVIUM
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AesType type; /* aes key type */
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int devId; /* nitrox device id */
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word32 magic; /* using cavium magic */
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word64 contextHandle; /* nitrox context memory handle */
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#endif
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#ifdef CYASSL_AES_COUNTER
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word32 left; /* unsued bytes left from last call */
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#endif
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} Aes;
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CYASSL_API int AesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv,
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int dir);
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CYASSL_API int AesSetIV(Aes* aes, const byte* iv);
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CYASSL_API int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz);
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CYASSL_API int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz);
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CYASSL_API void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz);
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CYASSL_API void AesEncryptDirect(Aes* aes, byte* out, const byte* in);
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CYASSL_API void AesDecryptDirect(Aes* aes, byte* out, const byte* in);
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CYASSL_API int AesSetKeyDirect(Aes* aes, const byte* key, word32 len,
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const byte* iv, int dir);
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#ifdef HAVE_AESGCM
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CYASSL_API void AesGcmSetKey(Aes* aes, const byte* key, word32 len);
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CYASSL_API void AesGcmEncrypt(Aes* aes, byte* out, 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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CYASSL_API int AesGcmDecrypt(Aes* aes, byte* out, 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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typedef struct Gmac {
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Aes aes;
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} Gmac;
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CYASSL_API void GmacSetKey(Gmac* gmac, const byte* key, word32 len);
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CYASSL_API void 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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CYASSL_API void AesCcmSetKey(Aes* aes, const byte* key, word32 keySz);
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CYASSL_API void AesCcmEncrypt(Aes* aes, byte* out, 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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CYASSL_API int AesCcmDecrypt(Aes* aes, byte* out, 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_CAVIUM
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CYASSL_API int AesInitCavium(Aes*, int);
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CYASSL_API void AesFreeCavium(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 /* CTAO_CRYPT_AES_H */
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#endif /* NO_AES */
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