sha.h

00001 /* sha.h
00002  *
00003  * Copyright (C) 2006-2016 wolfSSL Inc.
00004  *
00005  * This file is part of wolfSSL.
00006  *
00007  * wolfSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * wolfSSL is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
00020  */
00021 
00022 
00023 #ifndef WOLF_CRYPT_SHA_H
00024 #define WOLF_CRYPT_SHA_H
00025 
00026 #include <wolfssl/wolfcrypt/types.h>
00027 
00028 #ifndef NO_SHA
00029 
00030 #ifdef HAVE_FIPS
00031 /* for fips @wc_fips */
00032 #include <cyassl/ctaocrypt/sha.h>
00033 #endif
00034 
00035 #ifdef FREESCALE_LTC_SHA
00036     #include "fsl_ltc.h"
00037 #endif
00038 
00039 #ifdef __cplusplus
00040     extern "C" {
00041 #endif
00042 
00043 #ifndef HAVE_FIPS /* avoid redefining structs */
00044 
00045 #ifdef WOLFSSL_PIC32MZ_HASH
00046     #include "port/pic32/pic32mz-crypt.h"
00047 #endif
00048 #ifdef WOLFSSL_ASYNC_CRYPT
00049     #include <wolfssl/wolfcrypt/async.h>
00050 #endif
00051 
00052 /* in bytes */
00053 enum {
00054 #if defined(STM32F2_HASH) || defined(STM32F4_HASH)
00055     SHA_REG_SIZE     =  4,    /* STM32 register size, bytes */
00056 #endif
00057     SHA              =  1,    /* hash type unique */
00058     SHA_BLOCK_SIZE   = 64,
00059     SHA_DIGEST_SIZE  = 20,
00060     SHA_PAD_SIZE     = 56
00061 };
00062 
00063 
00064 #ifndef WOLFSSL_TI_HASH
00065 /* Sha digest */
00066 typedef struct Sha {
00067     #ifdef FREESCALE_LTC_SHA
00068         ltc_hash_ctx_t ctx;
00069     #else
00070         word32  buffLen;   /* in bytes          */
00071         word32  loLen;     /* length in bytes   */
00072         word32  hiLen;     /* length in bytes   */
00073         word32  buffer[SHA_BLOCK_SIZE  / sizeof(word32)];
00074     #ifndef WOLFSSL_PIC32MZ_HASH
00075         word32  digest[SHA_DIGEST_SIZE / sizeof(word32)];
00076     #else
00077         word32  digest[PIC32_HASH_SIZE / sizeof(word32)];
00078     #endif
00079         void*   heap;
00080     #ifdef WOLFSSL_PIC32MZ_HASH
00081         pic32mz_desc desc; /* Crypt Engine descriptor */
00082     #endif
00083     #ifdef WOLFSSL_ASYNC_CRYPT
00084         WC_ASYNC_DEV asyncDev;
00085     #endif /* WOLFSSL_ASYNC_CRYPT */
00086 #endif /* FREESCALE_LTC_SHA */
00087 } Sha;
00088 
00089 #else
00090     #include "wolfssl/wolfcrypt/port/ti/ti-hash.h"
00091 #endif /* WOLFSSL_TI_HASH */
00092 
00093 
00094 #endif /* HAVE_FIPS */
00095 
00096 WOLFSSL_API int wc_InitSha(Sha*);
00097 WOLFSSL_API int wc_InitSha_ex(Sha* sha, void* heap, int devId);
00098 WOLFSSL_API int wc_ShaUpdate(Sha*, const byte*, word32);
00099 WOLFSSL_API int wc_ShaFinal(Sha*, byte*);
00100 WOLFSSL_API void wc_ShaFree(Sha*);
00101 
00102 WOLFSSL_API int wc_ShaGetHash(Sha*, byte*);
00103 WOLFSSL_API int wc_ShaCopy(Sha*, Sha*);
00104 
00105 #ifdef __cplusplus
00106     } /* extern "C" */
00107 #endif
00108 
00109 #endif /* NO_SHA */
00110 #endif /* WOLF_CRYPT_SHA_H */
00111 
00112