Files
2018-07-09 19:45:07 +08:00

263 lines
8.5 KiB
C

/* aes.h
*
* Copyright (C) 2006-2018 wolfSSL Inc. All rights reserved.
*
* This file is part of wolfSSL.
*
* Contact licensing@wolfssl.com with any questions or comments.
*
* http://www.wolfssl.com
*/
/*!
\file wolfssl/wolfcrypt/aes.h
*/
#ifndef WOLF_CRYPT_AES_H
#define WOLF_CRYPT_AES_H
#include <wolfssl/wolfcrypt/types.h>
#ifndef NO_AES
/* included for fips @wc_fips */
#ifdef HAVE_FIPS
#include <cyassl/ctaocrypt/aes.h>
#if defined(CYASSL_AES_COUNTER) && !defined(WOLFSSL_AES_COUNTER)
#define WOLFSSL_AES_COUNTER
#endif
#if !defined(WOLFSSL_AES_DIRECT) && defined(CYASSL_AES_DIRECT)
#define WOLFSSL_AES_DIRECT
#endif
#endif
#ifndef HAVE_FIPS /* to avoid redefinition of macros */
#ifdef WOLFSSL_AESNI
#include <wmmintrin.h>
#include <emmintrin.h>
#include <smmintrin.h>
#endif /* WOLFSSL_AESNI */
#ifdef WOLFSSL_XILINX_CRYPT
#include "xsecure_aes.h"
#endif
#endif /* HAVE_FIPS */
#ifdef __cplusplus
extern "C" {
#endif
/* these are required for FIPS and non-FIPS */
enum {
AES_128_KEY_SIZE = 16, /* for 128 bit */
AES_192_KEY_SIZE = 24, /* for 192 bit */
AES_256_KEY_SIZE = 32, /* for 256 bit */
AES_IV_SIZE = 16, /* always block size */
};
#ifndef HAVE_FIPS /* to avoid redefinition of structures */
#ifdef WOLFSSL_ASYNC_CRYPT
#include <wolfssl/wolfcrypt/async.h>
#endif
enum {
AES_ENC_TYPE = WC_CIPHER_AES, /* cipher unique type */
AES_ENCRYPTION = 0,
AES_DECRYPTION = 1,
AES_BLOCK_SIZE = 16,
KEYWRAP_BLOCK_SIZE = 8,
};
typedef struct Aes {
/* AESNI needs key first, rounds 2nd, not sure why yet */
ALIGN16 word32 key[60];
word32 rounds;
int keylen;
ALIGN16 word32 reg[AES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
ALIGN16 word32 tmp[AES_BLOCK_SIZE / sizeof(word32)]; /* same */
#ifdef HAVE_AESGCM
ALIGN16 byte H[AES_BLOCK_SIZE];
#ifdef GCM_TABLE
/* key-based fast multiplication table. */
ALIGN16 byte M0[256][AES_BLOCK_SIZE];
#endif /* GCM_TABLE */
#endif /* HAVE_AESGCM */
#ifdef WOLFSSL_AESNI
byte use_aesni;
#endif /* WOLFSSL_AESNI */
#ifdef WOLFSSL_ASYNC_CRYPT
word32 asyncKey[AES_MAX_KEY_SIZE/8/sizeof(word32)]; /* raw key */
word32 asyncIv[AES_BLOCK_SIZE/sizeof(word32)]; /* raw IV */
WC_ASYNC_DEV asyncDev;
#endif /* WOLFSSL_ASYNC_CRYPT */
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB)
word32 left; /* unused bytes left from last call */
#endif
#ifdef WOLFSSL_XILINX_CRYPT
XSecure_Aes xilAes;
XCsuDma dma;
word32 key_init[8];
word32 kup;
#endif
void* heap; /* memory hint to use */
} Aes;
#ifdef WOLFSSL_AES_XTS
typedef struct XtsAes {
Aes aes;
Aes tweak;
} XtsAes;
#endif
#ifdef HAVE_AESGCM
typedef struct Gmac {
Aes aes;
} Gmac;
#endif /* HAVE_AESGCM */
#endif /* HAVE_FIPS */
/* Authenticate cipher function prototypes */
typedef int (*wc_AesAuthEncryptFunc)(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* iv, word32 ivSz,
byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz);
typedef int (*wc_AesAuthDecryptFunc)(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* iv, word32 ivSz,
const byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz);
/* AES-CBC */
WOLFSSL_API int wc_AesSetKey(Aes* aes, const byte* key, word32 len,
const byte* iv, int dir);
WOLFSSL_API int wc_AesSetIV(Aes* aes, const byte* iv);
WOLFSSL_API int wc_AesCbcEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
WOLFSSL_API int wc_AesCbcDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
#ifdef WOLFSSL_AES_CFB
WOLFSSL_API int wc_AesCfbEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
#ifdef HAVE_AES_DECRYPT
WOLFSSL_API int wc_AesCfbDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
#endif /* HAVE_AES_DECRYPT */
#endif /* WOLFSSL_AES_CFB */
#ifdef HAVE_AES_ECB
WOLFSSL_API int wc_AesEcbEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
WOLFSSL_API int wc_AesEcbDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
#endif
/* AES-CTR */
#ifdef WOLFSSL_AES_COUNTER
WOLFSSL_API int wc_AesCtrEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz);
#endif
/* AES-DIRECT */
#if defined(WOLFSSL_AES_DIRECT)
WOLFSSL_API void wc_AesEncryptDirect(Aes* aes, byte* out, const byte* in);
WOLFSSL_API void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in);
WOLFSSL_API int wc_AesSetKeyDirect(Aes* aes, const byte* key, word32 len,
const byte* iv, int dir);
#endif
#ifdef HAVE_AESGCM
#ifdef WOLFSSL_XILINX_CRYPT
WOLFSSL_API int wc_AesGcmSetKey_ex(Aes* aes, const byte* key, word32 len,
word32 kup);
#endif
WOLFSSL_API int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len);
WOLFSSL_API 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);
WOLFSSL_API 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);
WOLFSSL_API int wc_GmacSetKey(Gmac* gmac, const byte* key, word32 len);
WOLFSSL_API int wc_GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz,
const byte* authIn, word32 authInSz,
byte* authTag, word32 authTagSz);
WOLFSSL_LOCAL void GHASH(Aes* aes, const byte* a, word32 aSz, const byte* c,
word32 cSz, byte* s, word32 sSz);
#endif /* HAVE_AESGCM */
#ifdef HAVE_AESCCM
WOLFSSL_API int wc_AesCcmSetKey(Aes* aes, const byte* key, word32 keySz);
WOLFSSL_API int 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);
WOLFSSL_API 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);
#endif /* HAVE_AESCCM */
#ifdef HAVE_AES_KEYWRAP
WOLFSSL_API int wc_AesKeyWrap(const byte* key, word32 keySz,
const byte* in, word32 inSz,
byte* out, word32 outSz,
const byte* iv);
WOLFSSL_API int wc_AesKeyUnWrap(const byte* key, word32 keySz,
const byte* in, word32 inSz,
byte* out, word32 outSz,
const byte* iv);
#endif /* HAVE_AES_KEYWRAP */
#ifdef WOLFSSL_AES_XTS
WOLFSSL_API int wc_AesXtsSetKey(XtsAes* aes, const byte* key,
word32 len, int dir, void* heap, int devId);
WOLFSSL_API int wc_AesXtsEncryptSector(XtsAes* aes, byte* out,
const byte* in, word32 sz, word64 sector);
WOLFSSL_API int wc_AesXtsDecryptSector(XtsAes* aes, byte* out,
const byte* in, word32 sz, word64 sector);
WOLFSSL_API int wc_AesXtsEncrypt(XtsAes* aes, byte* out,
const byte* in, word32 sz, const byte* i, word32 iSz);
WOLFSSL_API int wc_AesXtsDecrypt(XtsAes* aes, byte* out,
const byte* in, word32 sz, const byte* i, word32 iSz);
WOLFSSL_API int wc_AesXtsFree(XtsAes* aes);
#endif
WOLFSSL_API int wc_AesGetKeySize(Aes* aes, word32* keySize);
WOLFSSL_API int wc_AesInit(Aes*, void*, int);
WOLFSSL_API void wc_AesFree(Aes*);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* NO_AES */
#endif /* WOLF_CRYPT_AES_H */