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/* sha256.h
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* 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 02110-1335, USA
*/
/*!
\file wolfssl/wolfcrypt/sha256.h
*/
#ifndef WOLF_CRYPT_SHA256_H
#define WOLF_CRYPT_SHA256_H
#include <wolfssl/wolfcrypt/types.h>
#ifndef NO_SHA256
#if defined(HAVE_FIPS) && \
defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
#include <wolfssl/wolfcrypt/fips.h>
#endif /* HAVE_FIPS_VERSION >= 2 */
#if defined(HAVE_FIPS) && \
(!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))
#define wc_Sha256 Sha256
#define WC_SHA256 SHA256
#define WC_SHA256_BLOCK_SIZE SHA256_BLOCK_SIZE
#define WC_SHA256_DIGEST_SIZE SHA256_DIGEST_SIZE
#define WC_SHA256_PAD_SIZE SHA256_PAD_SIZE
#ifdef WOLFSSL_SHA224
#define wc_Sha224 Sha224
#define WC_SHA224 SHA224
#define WC_SHA224_BLOCK_SIZE SHA224_BLOCK_SIZE
#define WC_SHA224_DIGEST_SIZE SHA224_DIGEST_SIZE
#define WC_SHA224_PAD_SIZE SHA224_PAD_SIZE
#endif
/* for fips @wc_fips */
#include <cyassl/ctaocrypt/sha256.h>
#endif
#ifdef FREESCALE_LTC_SHA
#include "fsl_ltc.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* avoid redefinition of structs */
#if !defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
#ifdef WOLFSSL_MICROCHIP_PIC32MZ
#include <wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h>
#endif
#ifdef STM32_HASH
#include <wolfssl/wolfcrypt/port/st/stm32.h>
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
#include <wolfssl/wolfcrypt/async.h>
#endif
#if defined(WOLFSSL_DEVCRYPTO) && defined(WOLFSSL_DEVCRYPTO_HASH)
#include <wolfssl/wolfcrypt/port/devcrypto/wc_devcrypto.h>
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT)
#include "wolfssl/wolfcrypt/port/Espressif/esp32-crypt.h"
#endif
#if defined(WOLFSSL_CRYPTOCELL)
#include <wolfssl/wolfcrypt/port/arm/cryptoCell.h>
#endif
#if defined(_MSC_VER)
#define SHA256_NOINLINE __declspec(noinline)
#elif defined(__IAR_SYSTEMS_ICC__) || defined(__GNUC__)
#define SHA256_NOINLINE __attribute__((noinline))
#else
#define SHA256_NOINLINE
#endif
#if !defined(NO_OLD_SHA_NAMES)
#define SHA256 WC_SHA256
#endif
#ifndef NO_OLD_WC_NAMES
#define Sha256 wc_Sha256
#define SHA256_BLOCK_SIZE WC_SHA256_BLOCK_SIZE
#define SHA256_DIGEST_SIZE WC_SHA256_DIGEST_SIZE
#define SHA256_PAD_SIZE WC_SHA256_PAD_SIZE
#endif
/* in bytes */
enum {
WC_SHA256 = WC_HASH_TYPE_SHA256,
WC_SHA256_BLOCK_SIZE = 64,
WC_SHA256_DIGEST_SIZE = 32,
WC_SHA256_PAD_SIZE = 56
};
#ifdef WOLFSSL_TI_HASH
#include "wolfssl/wolfcrypt/port/ti/ti-hash.h"
#elif defined(WOLFSSL_IMX6_CAAM)
#include "wolfssl/wolfcrypt/port/caam/wolfcaam_sha.h"
#elif defined(WOLFSSL_AFALG_HASH)
#include "wolfssl/wolfcrypt/port/af_alg/afalg_hash.h"
#elif defined(WOLFSSL_RENESAS_TSIP_CRYPT) && \
!defined(NO_WOLFSSL_RENESAS_TSIP_CRYPT_HASH)
#include "wolfssl/wolfcrypt/port/Renesas/renesas-tsip-crypt.h"
#else
/* wc_Sha256 digest */
struct wc_Sha256 {
#ifdef FREESCALE_LTC_SHA
ltc_hash_ctx_t ctx;
#elif defined(STM32_HASH_SHA2)
STM32_HASH_Context stmCtx;
#else
/* alignment on digest and buffer speeds up ARMv8 crypto operations */
ALIGN16 word32 digest[WC_SHA256_DIGEST_SIZE / sizeof(word32)];
ALIGN16 word32 buffer[WC_SHA256_BLOCK_SIZE / sizeof(word32)];
word32 buffLen; /* in bytes */
word32 loLen; /* length in bytes */
word32 hiLen; /* length in bytes */
void* heap;
#ifdef WOLFSSL_PIC32MZ_HASH
hashUpdCache cache; /* cache for updates */
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
WC_ASYNC_DEV asyncDev;
#endif /* WOLFSSL_ASYNC_CRYPT */
#ifdef WOLFSSL_SMALL_STACK_CACHE
word32* W;
#endif
#ifdef WOLFSSL_DEVCRYPTO_HASH
WC_CRYPTODEV ctx;
byte* msg;
word32 used;
word32 len;
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
WC_ESP32SHA ctx;
#endif
#ifdef WOLFSSL_CRYPTOCELL
CRYS_HASHUserContext_t ctx;
#endif
#ifdef WOLF_CRYPTO_CB
int devId;
void* devCtx; /* generic crypto callback context */
#endif
#endif
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
word32 flags; /* enum wc_HashFlags in hash.h */
#endif
};
#ifndef WC_SHA256_TYPE_DEFINED
typedef struct wc_Sha256 wc_Sha256;
#define WC_SHA256_TYPE_DEFINED
#endif
#endif
#endif /* HAVE_FIPS */
WOLFSSL_API int wc_InitSha256(wc_Sha256*);
WOLFSSL_API int wc_InitSha256_ex(wc_Sha256*, void*, int);
WOLFSSL_API int wc_Sha256Update(wc_Sha256*, const byte*, word32);
WOLFSSL_API int wc_Sha256FinalRaw(wc_Sha256*, byte*);
WOLFSSL_API int wc_Sha256Final(wc_Sha256*, byte*);
WOLFSSL_API void wc_Sha256Free(wc_Sha256*);
WOLFSSL_API int wc_Sha256GetHash(wc_Sha256*, byte*);
WOLFSSL_API int wc_Sha256Copy(wc_Sha256* src, wc_Sha256* dst);
#ifdef WOLFSSL_PIC32MZ_HASH
WOLFSSL_API void wc_Sha256SizeSet(wc_Sha256*, word32);
#endif
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
WOLFSSL_API int wc_Sha256SetFlags(wc_Sha256* sha256, word32 flags);
WOLFSSL_API int wc_Sha256GetFlags(wc_Sha256* sha256, word32* flags);
#endif
#ifdef WOLFSSL_SHA224
/* avoid redefinition of structs */
#if !defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
#ifndef NO_OLD_WC_NAMES
#define Sha224 wc_Sha224
#define SHA224 WC_SHA224
#define SHA224_BLOCK_SIZE WC_SHA224_BLOCK_SIZE
#define SHA224_DIGEST_SIZE WC_SHA224_DIGEST_SIZE
#define SHA224_PAD_SIZE WC_SHA224_PAD_SIZE
#endif
/* in bytes */
enum {
WC_SHA224 = WC_HASH_TYPE_SHA224,
WC_SHA224_BLOCK_SIZE = WC_SHA256_BLOCK_SIZE,
WC_SHA224_DIGEST_SIZE = 28,
WC_SHA224_PAD_SIZE = WC_SHA256_PAD_SIZE
};
#ifndef WC_SHA224_TYPE_DEFINED
typedef struct wc_Sha256 wc_Sha224;
#define WC_SHA224_TYPE_DEFINED
#endif
#endif /* HAVE_FIPS */
WOLFSSL_API int wc_InitSha224(wc_Sha224*);
WOLFSSL_API int wc_InitSha224_ex(wc_Sha224*, void*, int);
WOLFSSL_API int wc_Sha224Update(wc_Sha224*, const byte*, word32);
WOLFSSL_API int wc_Sha224Final(wc_Sha224*, byte*);
WOLFSSL_API void wc_Sha224Free(wc_Sha224*);
WOLFSSL_API int wc_Sha224GetHash(wc_Sha224*, byte*);
WOLFSSL_API int wc_Sha224Copy(wc_Sha224* src, wc_Sha224* dst);
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
WOLFSSL_API int wc_Sha224SetFlags(wc_Sha224* sha224, word32 flags);
WOLFSSL_API int wc_Sha224GetFlags(wc_Sha224* sha224, word32* flags);
#endif
#endif /* WOLFSSL_SHA224 */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* NO_SHA256 */
#endif /* WOLF_CRYPT_SHA256_H */
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