wolf SSL
wolfSSL SSL/TLS library, support up to TLS1.3
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wolfcrypt/src/sha256.c
- Committer:
- wolfSSL
- Date:
- 2020-06-05
- Revision:
- 17:a5f916481144
- Parent:
- 16:8e0d178b1d1e
File content as of revision 17:a5f916481144:
/* sha256.c
*
* 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
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wolfssl/wolfcrypt/settings.h>
/*
* SHA256 Build Options:
* USE_SLOW_SHA256: Reduces code size by not partially unrolling
(~2KB smaller and ~25% slower) (default OFF)
* WOLFSSL_SHA256_BY_SPEC: Uses the Ch/Maj based on SHA256 specification
(default ON)
* WOLFSSL_SHA256_ALT_CH_MAJ: Alternate Ch/Maj that is easier for compilers to
optimize and recognize as SHA256 (default OFF)
* SHA256_MANY_REGISTERS: A SHA256 version that keeps all data in registers
and partial unrolled (default OFF)
*/
/* Default SHA256 to use Ch/Maj based on specification */
#if !defined(WOLFSSL_SHA256_BY_SPEC) && !defined(WOLFSSL_SHA256_ALT_CH_MAJ)
#define WOLFSSL_SHA256_BY_SPEC
#endif
#if !defined(NO_SHA256) && !defined(WOLFSSL_ARMASM)
#if defined(HAVE_FIPS) && \
defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
/* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */
#define FIPS_NO_WRAPPERS
#ifdef USE_WINDOWS_API
#pragma code_seg(".fipsA$d")
#pragma const_seg(".fipsB$d")
#endif
#endif
#include <wolfssl/wolfcrypt/sha256.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/wolfcrypt/cpuid.h>
#include <wolfssl/wolfcrypt/hash.h>
#ifdef WOLF_CRYPTO_CB
#include <wolfssl/wolfcrypt/cryptocb.h>
#endif
/* fips wrapper calls, user can call direct */
#if defined(HAVE_FIPS) && \
(!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))
int wc_InitSha256(wc_Sha256* sha)
{
if (sha == NULL) {
return BAD_FUNC_ARG;
}
return InitSha256_fips(sha);
}
int wc_InitSha256_ex(wc_Sha256* sha, void* heap, int devId)
{
(void)heap;
(void)devId;
if (sha == NULL) {
return BAD_FUNC_ARG;
}
return InitSha256_fips(sha);
}
int wc_Sha256Update(wc_Sha256* sha, const byte* data, word32 len)
{
if (sha == NULL || (data == NULL && len > 0)) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
return Sha256Update_fips(sha, data, len);
}
int wc_Sha256Final(wc_Sha256* sha, byte* out)
{
if (sha == NULL || out == NULL) {
return BAD_FUNC_ARG;
}
return Sha256Final_fips(sha, out);
}
void wc_Sha256Free(wc_Sha256* sha)
{
(void)sha;
/* Not supported in FIPS */
}
#else /* else build without fips, or for FIPS v2 */
#if defined(WOLFSSL_TI_HASH)
/* #include <wolfcrypt/src/port/ti/ti-hash.c> included by wc_port.c */
#elif defined(WOLFSSL_CRYPTOCELL)
/* wc_port.c includes wolfcrypt/src/port/arm/cryptoCellHash.c */
#else
#include <wolfssl/wolfcrypt/logging.h>
#ifdef NO_INLINE
#include <wolfssl/wolfcrypt/misc.h>
#else
#define WOLFSSL_MISC_INCLUDED
#include <wolfcrypt/src/misc.c>
#endif
#ifdef WOLFSSL_DEVCRYPTO_HASH
#include <wolfssl/wolfcrypt/port/devcrypto/wc_devcrypto.h>
#endif
#if defined(USE_INTEL_SPEEDUP)
#if defined(__GNUC__) && ((__GNUC__ < 4) || \
(__GNUC__ == 4 && __GNUC_MINOR__ <= 8))
#undef NO_AVX2_SUPPORT
#define NO_AVX2_SUPPORT
#endif
#if defined(__clang__) && ((__clang_major__ < 3) || \
(__clang_major__ == 3 && __clang_minor__ <= 5))
#define NO_AVX2_SUPPORT
#elif defined(__clang__) && defined(NO_AVX2_SUPPORT)
#undef NO_AVX2_SUPPORT
#endif
#define HAVE_INTEL_AVX1
#ifndef NO_AVX2_SUPPORT
#define HAVE_INTEL_AVX2
#endif
#endif /* USE_INTEL_SPEEDUP */
#if defined(HAVE_INTEL_AVX2)
#define HAVE_INTEL_RORX
#endif
#if !defined(WOLFSSL_PIC32MZ_HASH) && !defined(STM32_HASH_SHA2) && \
(!defined(WOLFSSL_IMX6_CAAM) || defined(NO_IMX6_CAAM_HASH)) && \
!defined(WOLFSSL_AFALG_HASH) && !defined(WOLFSSL_DEVCRYPTO_HASH) && \
(!defined(WOLFSSL_ESP32WROOM32_CRYPT) || defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)) && \
(!defined(WOLFSSL_RENESAS_TSIP_CRYPT) || defined(NO_WOLFSSL_RENESAS_TSIP_HASH))
static int InitSha256(wc_Sha256* sha256)
{
int ret = 0;
if (sha256 == NULL)
return BAD_FUNC_ARG;
XMEMSET(sha256->digest, 0, sizeof(sha256->digest));
sha256->digest[0] = 0x6A09E667L;
sha256->digest[1] = 0xBB67AE85L;
sha256->digest[2] = 0x3C6EF372L;
sha256->digest[3] = 0xA54FF53AL;
sha256->digest[4] = 0x510E527FL;
sha256->digest[5] = 0x9B05688CL;
sha256->digest[6] = 0x1F83D9ABL;
sha256->digest[7] = 0x5BE0CD19L;
sha256->buffLen = 0;
sha256->loLen = 0;
sha256->hiLen = 0;
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
sha256->flags = 0;
#endif
return ret;
}
#endif
/* Hardware Acceleration */
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
/* in case intel instructions aren't available, plus we need the K[] global */
#define NEED_SOFT_SHA256
/*****
Intel AVX1/AVX2 Macro Control Structure
#define HAVE_INTEL_AVX1
#define HAVE_INTEL_AVX2
#define HAVE_INTEL_RORX
int InitSha256(wc_Sha256* sha256) {
Save/Recover XMM, YMM
...
}
#if defined(HAVE_INTEL_AVX1)|| defined(HAVE_INTEL_AVX2)
Transform_Sha256(); Function prototype
#else
Transform_Sha256() { }
int Sha256Final() {
Save/Recover XMM, YMM
...
}
#endif
#if defined(HAVE_INTEL_AVX1)|| defined(HAVE_INTEL_AVX2)
#if defined(HAVE_INTEL_RORX
#define RND with rorx instruction
#else
#define RND
#endif
#endif
#if defined(HAVE_INTEL_AVX1)
#define XMM Instructions/inline asm
int Transform_Sha256() {
Stitched Message Sched/Round
}
#elif defined(HAVE_INTEL_AVX2)
#define YMM Instructions/inline asm
int Transform_Sha256() {
More granular Stitched Message Sched/Round
}
#endif
*/
/* Each platform needs to query info type 1 from cpuid to see if aesni is
* supported. Also, let's setup a macro for proper linkage w/o ABI conflicts
*/
/* #if defined(HAVE_INTEL_AVX1/2) at the tail of sha256 */
static int Transform_Sha256(wc_Sha256* sha256, const byte* data);
#ifdef __cplusplus
extern "C" {
#endif
#if defined(HAVE_INTEL_AVX1)
extern int Transform_Sha256_AVX1(wc_Sha256 *sha256, const byte* data);
extern int Transform_Sha256_AVX1_Len(wc_Sha256* sha256,
const byte* data, word32 len);
#endif
#if defined(HAVE_INTEL_AVX2)
extern int Transform_Sha256_AVX2(wc_Sha256 *sha256, const byte* data);
extern int Transform_Sha256_AVX2_Len(wc_Sha256* sha256,
const byte* data, word32 len);
#ifdef HAVE_INTEL_RORX
extern int Transform_Sha256_AVX1_RORX(wc_Sha256 *sha256, const byte* data);
extern int Transform_Sha256_AVX1_RORX_Len(wc_Sha256* sha256,
const byte* data, word32 len);
extern int Transform_Sha256_AVX2_RORX(wc_Sha256 *sha256, const byte* data);
extern int Transform_Sha256_AVX2_RORX_Len(wc_Sha256* sha256,
const byte* data, word32 len);
#endif /* HAVE_INTEL_RORX */
#endif /* HAVE_INTEL_AVX2 */
#ifdef __cplusplus
} /* extern "C" */
#endif
static int (*Transform_Sha256_p)(wc_Sha256* sha256, const byte* data);
/* = _Transform_Sha256 */
static int (*Transform_Sha256_Len_p)(wc_Sha256* sha256, const byte* data,
word32 len);
/* = NULL */
static int transform_check = 0;
static word32 intel_flags;
#define XTRANSFORM(S, D) (*Transform_Sha256_p)((S),(D))
#define XTRANSFORM_LEN(S, D, L) (*Transform_Sha256_Len_p)((S),(D),(L))
static void Sha256_SetTransform(void)
{
if (transform_check)
return;
intel_flags = cpuid_get_flags();
#ifdef HAVE_INTEL_AVX2
if (1 && IS_INTEL_AVX2(intel_flags)) {
#ifdef HAVE_INTEL_RORX
if (IS_INTEL_BMI2(intel_flags)) {
Transform_Sha256_p = Transform_Sha256_AVX2_RORX;
Transform_Sha256_Len_p = Transform_Sha256_AVX2_RORX_Len;
}
else
#endif
if (1)
{
Transform_Sha256_p = Transform_Sha256_AVX2;
Transform_Sha256_Len_p = Transform_Sha256_AVX2_Len;
}
#ifdef HAVE_INTEL_RORX
else {
Transform_Sha256_p = Transform_Sha256_AVX1_RORX;
Transform_Sha256_Len_p = Transform_Sha256_AVX1_RORX_Len;
}
#endif
}
else
#endif
#ifdef HAVE_INTEL_AVX1
if (IS_INTEL_AVX1(intel_flags)) {
Transform_Sha256_p = Transform_Sha256_AVX1;
Transform_Sha256_Len_p = Transform_Sha256_AVX1_Len;
}
else
#endif
{
Transform_Sha256_p = Transform_Sha256;
Transform_Sha256_Len_p = NULL;
}
transform_check = 1;
}
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
int ret = 0;
if (sha256 == NULL)
return BAD_FUNC_ARG;
sha256->heap = heap;
#ifdef WOLF_CRYPTO_CB
sha256->devId = devId;
#endif
ret = InitSha256(sha256);
if (ret != 0)
return ret;
/* choose best Transform function under this runtime environment */
Sha256_SetTransform();
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA256)
ret = wolfAsync_DevCtxInit(&sha256->asyncDev,
WOLFSSL_ASYNC_MARKER_SHA256, sha256->heap, devId);
#else
(void)devId;
#endif /* WOLFSSL_ASYNC_CRYPT */
return ret;
}
#elif defined(FREESCALE_LTC_SHA)
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
(void)heap;
(void)devId;
LTC_HASH_Init(LTC_BASE, &sha256->ctx, kLTC_Sha256, NULL, 0);
return 0;
}
#elif defined(FREESCALE_MMCAU_SHA)
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
#include "cau_api.h"
#else
#include "fsl_mmcau.h"
#endif
#define XTRANSFORM(S, D) Transform_Sha256((S),(D))
#define XTRANSFORM_LEN(S, D, L) Transform_Sha256_Len((S),(D),(L))
#ifndef WC_HASH_DATA_ALIGNMENT
/* these hardware API's require 4 byte (word32) alignment */
#define WC_HASH_DATA_ALIGNMENT 4
#endif
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
int ret = 0;
(void)heap;
(void)devId;
ret = wolfSSL_CryptHwMutexLock();
if (ret != 0) {
return ret;
}
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_initialize_output(sha256->digest);
#else
MMCAU_SHA256_InitializeOutput((uint32_t*)sha256->digest);
#endif
wolfSSL_CryptHwMutexUnLock();
sha256->buffLen = 0;
sha256->loLen = 0;
sha256->hiLen = 0;
#ifdef WOLFSSL_SMALL_STACK_CACHE
sha256->W = NULL;
#endif
return ret;
}
static int Transform_Sha256(wc_Sha256* sha256, const byte* data)
{
int ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_hash_n((byte*)data, 1, sha256->digest);
#else
MMCAU_SHA256_HashN((byte*)data, 1, sha256->digest);
#endif
wolfSSL_CryptHwMutexUnLock();
}
return ret;
}
static int Transform_Sha256_Len(wc_Sha256* sha256, const byte* data,
word32 len)
{
int ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
#if defined(WC_HASH_DATA_ALIGNMENT) && WC_HASH_DATA_ALIGNMENT > 0
if ((size_t)data % WC_HASH_DATA_ALIGNMENT) {
/* data pointer is NOT aligned,
* so copy and perform one block at a time */
byte* local = (byte*)sha256->buffer;
while (len >= WC_SHA256_BLOCK_SIZE) {
XMEMCPY(local, data, WC_SHA256_BLOCK_SIZE);
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_hash_n(local, 1, sha256->digest);
#else
MMCAU_SHA256_HashN(local, 1, sha256->digest);
#endif
data += WC_SHA256_BLOCK_SIZE;
len -= WC_SHA256_BLOCK_SIZE;
}
}
else
#endif
{
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_hash_n((byte*)data, len/WC_SHA256_BLOCK_SIZE,
sha256->digest);
#else
MMCAU_SHA256_HashN((byte*)data, len/WC_SHA256_BLOCK_SIZE,
sha256->digest);
#endif
}
wolfSSL_CryptHwMutexUnLock();
}
return ret;
}
#elif defined(WOLFSSL_PIC32MZ_HASH)
#include <wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h>
#elif defined(STM32_HASH_SHA2)
/* Supports CubeMX HAL or Standard Peripheral Library */
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
if (sha256 == NULL)
return BAD_FUNC_ARG;
(void)devId;
(void)heap;
wc_Stm32_Hash_Init(&sha256->stmCtx);
return 0;
}
int wc_Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
int ret = 0;
if (sha256 == NULL || (data == NULL && len > 0)) {
return BAD_FUNC_ARG;
}
ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
ret = wc_Stm32_Hash_Update(&sha256->stmCtx,
HASH_AlgoSelection_SHA256, data, len);
wolfSSL_CryptHwMutexUnLock();
}
return ret;
}
int wc_Sha256Final(wc_Sha256* sha256, byte* hash)
{
int ret = 0;
if (sha256 == NULL || hash == NULL) {
return BAD_FUNC_ARG;
}
ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
ret = wc_Stm32_Hash_Final(&sha256->stmCtx,
HASH_AlgoSelection_SHA256, hash, WC_SHA256_DIGEST_SIZE);
wolfSSL_CryptHwMutexUnLock();
}
(void)wc_InitSha256(sha256); /* reset state */
return ret;
}
#elif defined(WOLFSSL_IMX6_CAAM) && !defined(NO_IMX6_CAAM_HASH)
/* functions defined in wolfcrypt/src/port/caam/caam_sha256.c */
#elif defined(WOLFSSL_AFALG_HASH)
/* implemented in wolfcrypt/src/port/af_alg/afalg_hash.c */
#elif defined(WOLFSSL_DEVCRYPTO_HASH)
/* implemented in wolfcrypt/src/port/devcrypto/devcrypt_hash.c */
#elif defined(WOLFSSL_SCE) && !defined(WOLFSSL_SCE_NO_HASH)
#include "hal_data.h"
#ifndef WOLFSSL_SCE_SHA256_HANDLE
#define WOLFSSL_SCE_SHA256_HANDLE g_sce_hash_0
#endif
#define WC_SHA256_DIGEST_WORD_SIZE 16
#define XTRANSFORM(S, D) wc_Sha256SCE_XTRANSFORM((S), (D))
static int wc_Sha256SCE_XTRANSFORM(wc_Sha256* sha256, const byte* data)
{
if (WOLFSSL_SCE_GSCE_HANDLE.p_cfg->endian_flag ==
CRYPTO_WORD_ENDIAN_LITTLE)
{
ByteReverseWords((word32*)data, (word32*)data,
WC_SHA256_BLOCK_SIZE);
ByteReverseWords(sha256->digest, sha256->digest,
WC_SHA256_DIGEST_SIZE);
}
if (WOLFSSL_SCE_SHA256_HANDLE.p_api->hashUpdate(
WOLFSSL_SCE_SHA256_HANDLE.p_ctrl, (word32*)data,
WC_SHA256_DIGEST_WORD_SIZE, sha256->digest) != SSP_SUCCESS){
WOLFSSL_MSG("Unexpected hardware return value");
return WC_HW_E;
}
if (WOLFSSL_SCE_GSCE_HANDLE.p_cfg->endian_flag ==
CRYPTO_WORD_ENDIAN_LITTLE)
{
ByteReverseWords((word32*)data, (word32*)data,
WC_SHA256_BLOCK_SIZE);
ByteReverseWords(sha256->digest, sha256->digest,
WC_SHA256_DIGEST_SIZE);
}
return 0;
}
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
int ret = 0;
if (sha256 == NULL)
return BAD_FUNC_ARG;
sha256->heap = heap;
ret = InitSha256(sha256);
if (ret != 0)
return ret;
(void)devId;
return ret;
}
#elif defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
#define NEED_SOFT_SHA256
static int InitSha256(wc_Sha256* sha256)
{
int ret = 0;
if (sha256 == NULL)
return BAD_FUNC_ARG;
XMEMSET(sha256->digest, 0, sizeof(sha256->digest));
sha256->digest[0] = 0x6A09E667L;
sha256->digest[1] = 0xBB67AE85L;
sha256->digest[2] = 0x3C6EF372L;
sha256->digest[3] = 0xA54FF53AL;
sha256->digest[4] = 0x510E527FL;
sha256->digest[5] = 0x9B05688CL;
sha256->digest[6] = 0x1F83D9ABL;
sha256->digest[7] = 0x5BE0CD19L;
sha256->buffLen = 0;
sha256->loLen = 0;
sha256->hiLen = 0;
/* always start firstblock = 1 when using hw engine */
sha256->ctx.isfirstblock = 1;
sha256->ctx.sha_type = SHA2_256;
if(sha256->ctx.mode == ESP32_SHA_HW) {
/* release hw */
esp_sha_hw_unlock();
}
/* always set mode as INIT
* whether using HW or SW is determined at first call of update()
*/
sha256->ctx.mode = ESP32_SHA_INIT;
return ret;
}
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
int ret = 0;
if (sha256 == NULL)
return BAD_FUNC_ARG;
XMEMSET(sha256, 0, sizeof(wc_Sha256));
sha256->ctx.mode = ESP32_SHA_INIT;
sha256->ctx.isfirstblock = 1;
(void)devId;
ret = InitSha256(sha256);
return ret;
}
#elif defined(WOLFSSL_RENESAS_TSIP_CRYPT) && \
!defined(NO_WOLFSSL_RENESAS_TSIP_CRYPT_HASH)
/* implemented in wolfcrypt/src/port/Renesas/renesas_tsip_sha.c */
#else
#define NEED_SOFT_SHA256
int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
{
int ret = 0;
if (sha256 == NULL)
return BAD_FUNC_ARG;
sha256->heap = heap;
#ifdef WOLF_CRYPTO_CB
sha256->devId = devId;
sha256->devCtx = NULL;
#endif
ret = InitSha256(sha256);
if (ret != 0)
return ret;
#ifdef WOLFSSL_SMALL_STACK_CACHE
sha256->W = NULL;
#endif
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA256)
ret = wolfAsync_DevCtxInit(&sha256->asyncDev,
WOLFSSL_ASYNC_MARKER_SHA256, sha256->heap, devId);
#else
(void)devId;
#endif /* WOLFSSL_ASYNC_CRYPT */
return ret;
}
#endif /* End Hardware Acceleration */
#ifdef NEED_SOFT_SHA256
static const ALIGN32 word32 K[64] = {
0x428A2F98L, 0x71374491L, 0xB5C0FBCFL, 0xE9B5DBA5L, 0x3956C25BL,
0x59F111F1L, 0x923F82A4L, 0xAB1C5ED5L, 0xD807AA98L, 0x12835B01L,
0x243185BEL, 0x550C7DC3L, 0x72BE5D74L, 0x80DEB1FEL, 0x9BDC06A7L,
0xC19BF174L, 0xE49B69C1L, 0xEFBE4786L, 0x0FC19DC6L, 0x240CA1CCL,
0x2DE92C6FL, 0x4A7484AAL, 0x5CB0A9DCL, 0x76F988DAL, 0x983E5152L,
0xA831C66DL, 0xB00327C8L, 0xBF597FC7L, 0xC6E00BF3L, 0xD5A79147L,
0x06CA6351L, 0x14292967L, 0x27B70A85L, 0x2E1B2138L, 0x4D2C6DFCL,
0x53380D13L, 0x650A7354L, 0x766A0ABBL, 0x81C2C92EL, 0x92722C85L,
0xA2BFE8A1L, 0xA81A664BL, 0xC24B8B70L, 0xC76C51A3L, 0xD192E819L,
0xD6990624L, 0xF40E3585L, 0x106AA070L, 0x19A4C116L, 0x1E376C08L,
0x2748774CL, 0x34B0BCB5L, 0x391C0CB3L, 0x4ED8AA4AL, 0x5B9CCA4FL,
0x682E6FF3L, 0x748F82EEL, 0x78A5636FL, 0x84C87814L, 0x8CC70208L,
0x90BEFFFAL, 0xA4506CEBL, 0xBEF9A3F7L, 0xC67178F2L
};
/* Both versions of Ch and Maj are logically the same, but with the second set
the compilers can recognize them better for optimization */
#ifdef WOLFSSL_SHA256_BY_SPEC
/* SHA256 math based on specification */
#define Ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
#define Maj(x,y,z) ((((x) | (y)) & (z)) | ((x) & (y)))
#else
/* SHA256 math reworked for easier compiler optimization */
#define Ch(x,y,z) ((((y) ^ (z)) & (x)) ^ (z))
#define Maj(x,y,z) ((((x) ^ (y)) & ((y) ^ (z))) ^ (y))
#endif
#define R(x, n) (((x) & 0xFFFFFFFFU) >> (n))
#define S(x, n) rotrFixed(x, n)
#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
#define a(i) S[(0-i) & 7]
#define b(i) S[(1-i) & 7]
#define c(i) S[(2-i) & 7]
#define d(i) S[(3-i) & 7]
#define e(i) S[(4-i) & 7]
#define f(i) S[(5-i) & 7]
#define g(i) S[(6-i) & 7]
#define h(i) S[(7-i) & 7]
#ifndef XTRANSFORM
#define XTRANSFORM(S, D) Transform_Sha256((S),(D))
#endif
#ifndef SHA256_MANY_REGISTERS
#define RND(j) \
t0 = h(j) + Sigma1(e(j)) + Ch(e(j), f(j), g(j)) + K[i+j] + W[i+j]; \
t1 = Sigma0(a(j)) + Maj(a(j), b(j), c(j)); \
d(j) += t0; \
h(j) = t0 + t1
static int Transform_Sha256(wc_Sha256* sha256, const byte* data)
{
word32 S[8], t0, t1;
int i;
#ifdef WOLFSSL_SMALL_STACK_CACHE
word32* W = sha256->W;
if (W == NULL) {
W = (word32*)XMALLOC(sizeof(word32) * WC_SHA256_BLOCK_SIZE, NULL,
DYNAMIC_TYPE_DIGEST);
if (W == NULL)
return MEMORY_E;
sha256->W = W;
}
#elif defined(WOLFSSL_SMALL_STACK)
word32* W;
W = (word32*)XMALLOC(sizeof(word32) * WC_SHA256_BLOCK_SIZE, NULL,
DYNAMIC_TYPE_TMP_BUFFER);
if (W == NULL)
return MEMORY_E;
#else
word32 W[WC_SHA256_BLOCK_SIZE];
#endif
/* Copy context->state[] to working vars */
for (i = 0; i < 8; i++)
S[i] = sha256->digest[i];
for (i = 0; i < 16; i++)
W[i] = *((word32*)&data[i*sizeof(word32)]);
for (i = 16; i < WC_SHA256_BLOCK_SIZE; i++)
W[i] = Gamma1(W[i-2]) + W[i-7] + Gamma0(W[i-15]) + W[i-16];
#ifdef USE_SLOW_SHA256
/* not unrolled - ~2k smaller and ~25% slower */
for (i = 0; i < WC_SHA256_BLOCK_SIZE; i += 8) {
int j;
for (j = 0; j < 8; j++) { /* braces needed here for macros {} */
RND(j);
}
}
#else
/* partially loop unrolled */
for (i = 0; i < WC_SHA256_BLOCK_SIZE; i += 8) {
RND(0); RND(1); RND(2); RND(3);
RND(4); RND(5); RND(6); RND(7);
}
#endif /* USE_SLOW_SHA256 */
/* Add the working vars back into digest state[] */
for (i = 0; i < 8; i++) {
sha256->digest[i] += S[i];
}
#if defined(WOLFSSL_SMALL_STACK) && !defined(WOLFSSL_SMALL_STACK_CACHE)
XFREE(W, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#endif
return 0;
}
#else
/* SHA256 version that keeps all data in registers */
#define SCHED1(j) (W[j] = *((word32*)&data[j*sizeof(word32)]))
#define SCHED(j) ( \
W[ j & 15] += \
Gamma1(W[(j-2) & 15])+ \
W[(j-7) & 15] + \
Gamma0(W[(j-15) & 15]) \
)
#define RND1(j) \
t0 = h(j) + Sigma1(e(j)) + Ch(e(j), f(j), g(j)) + K[i+j] + SCHED1(j); \
t1 = Sigma0(a(j)) + Maj(a(j), b(j), c(j)); \
d(j) += t0; \
h(j) = t0 + t1
#define RNDN(j) \
t0 = h(j) + Sigma1(e(j)) + Ch(e(j), f(j), g(j)) + K[i+j] + SCHED(j); \
t1 = Sigma0(a(j)) + Maj(a(j), b(j), c(j)); \
d(j) += t0; \
h(j) = t0 + t1
static int Transform_Sha256(wc_Sha256* sha256, const byte* data)
{
word32 S[8], t0, t1;
int i;
word32 W[WC_SHA256_BLOCK_SIZE/sizeof(word32)];
/* Copy digest to working vars */
S[0] = sha256->digest[0];
S[1] = sha256->digest[1];
S[2] = sha256->digest[2];
S[3] = sha256->digest[3];
S[4] = sha256->digest[4];
S[5] = sha256->digest[5];
S[6] = sha256->digest[6];
S[7] = sha256->digest[7];
i = 0;
RND1( 0); RND1( 1); RND1( 2); RND1( 3);
RND1( 4); RND1( 5); RND1( 6); RND1( 7);
RND1( 8); RND1( 9); RND1(10); RND1(11);
RND1(12); RND1(13); RND1(14); RND1(15);
/* 64 operations, partially loop unrolled */
for (i = 16; i < 64; i += 16) {
RNDN( 0); RNDN( 1); RNDN( 2); RNDN( 3);
RNDN( 4); RNDN( 5); RNDN( 6); RNDN( 7);
RNDN( 8); RNDN( 9); RNDN(10); RNDN(11);
RNDN(12); RNDN(13); RNDN(14); RNDN(15);
}
/* Add the working vars back into digest */
sha256->digest[0] += S[0];
sha256->digest[1] += S[1];
sha256->digest[2] += S[2];
sha256->digest[3] += S[3];
sha256->digest[4] += S[4];
sha256->digest[5] += S[5];
sha256->digest[6] += S[6];
sha256->digest[7] += S[7];
return 0;
}
#endif /* SHA256_MANY_REGISTERS */
#endif
/* End wc_ software implementation */
#ifdef XTRANSFORM
static WC_INLINE void AddLength(wc_Sha256* sha256, word32 len)
{
word32 tmp = sha256->loLen;
if ((sha256->loLen += len) < tmp) {
sha256->hiLen++; /* carry low to high */
}
}
/* do block size increments/updates */
static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
int ret = 0;
word32 blocksLen;
byte* local;
if (sha256 == NULL || (data == NULL && len > 0)) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
/* check that internal buffLen is valid */
if (sha256->buffLen >= WC_SHA256_BLOCK_SIZE) {
return BUFFER_E;
}
/* add length for final */
AddLength(sha256, len);
local = (byte*)sha256->buffer;
/* process any remainder from previous operation */
if (sha256->buffLen > 0) {
blocksLen = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
XMEMCPY(&local[sha256->buffLen], data, blocksLen);
sha256->buffLen += blocksLen;
data += blocksLen;
len -= blocksLen;
if (sha256->buffLen == WC_SHA256_BLOCK_SIZE) {
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
if (!IS_INTEL_AVX1(intel_flags) && !IS_INTEL_AVX2(intel_flags))
#endif
{
ByteReverseWords(sha256->buffer, sha256->buffer,
WC_SHA256_BLOCK_SIZE);
}
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
if (sha256->ctx.mode == ESP32_SHA_INIT){
esp_sha_try_hw_lock(&sha256->ctx);
}
if (sha256->ctx.mode == ESP32_SHA_SW){
ret = XTRANSFORM(sha256, (const byte*)local);
} else {
esp_sha256_process(sha256, (const byte*)local);
}
#else
ret = XTRANSFORM(sha256, (const byte*)local);
#endif
if (ret == 0)
sha256->buffLen = 0;
else
len = 0; /* error */
}
}
/* process blocks */
#ifdef XTRANSFORM_LEN
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
if (Transform_Sha256_Len_p != NULL)
#endif
{
/* get number of blocks */
/* 64-1 = 0x3F (~ Inverted = 0xFFFFFFC0) */
/* len (masked by 0xFFFFFFC0) returns block aligned length */
blocksLen = len & ~(WC_SHA256_BLOCK_SIZE-1);
if (blocksLen > 0) {
/* Byte reversal and alignment handled in function if required */
XTRANSFORM_LEN(sha256, data, blocksLen);
data += blocksLen;
len -= blocksLen;
}
}
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
else
#endif
#endif /* XTRANSFORM_LEN */
#if !defined(XTRANSFORM_LEN) || defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
{
while (len >= WC_SHA256_BLOCK_SIZE) {
word32* local32 = sha256->buffer;
/* optimization to avoid memcpy if data pointer is properly aligned */
/* Intel transform function requires use of sha256->buffer */
/* Little Endian requires byte swap, so can't use data directly */
#if defined(WC_HASH_DATA_ALIGNMENT) && !defined(LITTLE_ENDIAN_ORDER) && \
!defined(HAVE_INTEL_AVX1) && !defined(HAVE_INTEL_AVX2)
if (((size_t)data % WC_HASH_DATA_ALIGNMENT) == 0) {
local32 = (word32*)data;
}
else
#endif
{
XMEMCPY(local32, data, WC_SHA256_BLOCK_SIZE);
}
data += WC_SHA256_BLOCK_SIZE;
len -= WC_SHA256_BLOCK_SIZE;
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
if (!IS_INTEL_AVX1(intel_flags) && !IS_INTEL_AVX2(intel_flags))
#endif
{
ByteReverseWords(local32, local32, WC_SHA256_BLOCK_SIZE);
}
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
if (sha256->ctx.mode == ESP32_SHA_INIT){
esp_sha_try_hw_lock(&sha256->ctx);
}
if (sha256->ctx.mode == ESP32_SHA_SW){
ret = XTRANSFORM(sha256, (const byte*)local32);
} else {
esp_sha256_process(sha256, (const byte*)local32);
}
#else
ret = XTRANSFORM(sha256, (const byte*)local32);
#endif
if (ret != 0)
break;
}
}
#endif
/* save remainder */
if (len > 0) {
XMEMCPY(local, data, len);
sha256->buffLen = len;
}
return ret;
}
int wc_Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
if (sha256 == NULL || (data == NULL && len > 0)) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
#ifdef WOLF_CRYPTO_CB
if (sha256->devId != INVALID_DEVID) {
int ret = wc_CryptoCb_Sha256Hash(sha256, data, len, NULL);
if (ret != CRYPTOCB_UNAVAILABLE)
return ret;
/* fall-through when unavailable */
}
#endif
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA256)
if (sha256->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA256) {
#if defined(HAVE_INTEL_QA)
return IntelQaSymSha256(&sha256->asyncDev, NULL, data, len);
#endif
}
#endif /* WOLFSSL_ASYNC_CRYPT */
return Sha256Update(sha256, data, len);
}
static WC_INLINE int Sha256Final(wc_Sha256* sha256)
{
int ret;
byte* local;
if (sha256 == NULL) {
return BAD_FUNC_ARG;
}
local = (byte*)sha256->buffer;
local[sha256->buffLen++] = 0x80; /* add 1 */
/* pad with zeros */
if (sha256->buffLen > WC_SHA256_PAD_SIZE) {
XMEMSET(&local[sha256->buffLen], 0,
WC_SHA256_BLOCK_SIZE - sha256->buffLen);
sha256->buffLen += WC_SHA256_BLOCK_SIZE - sha256->buffLen;
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
if (!IS_INTEL_AVX1(intel_flags) && !IS_INTEL_AVX2(intel_flags))
#endif
{
ByteReverseWords(sha256->buffer, sha256->buffer,
WC_SHA256_BLOCK_SIZE);
}
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
if (sha256->ctx.mode == ESP32_SHA_INIT) {
esp_sha_try_hw_lock(&sha256->ctx);
}
if (sha256->ctx.mode == ESP32_SHA_SW) {
ret = XTRANSFORM(sha256, (const byte*)local);
} else {
ret = esp_sha256_process(sha256, (const byte*)local);
}
#else
ret = XTRANSFORM(sha256, (const byte*)local);
#endif
if (ret != 0)
return ret;
sha256->buffLen = 0;
}
XMEMSET(&local[sha256->buffLen], 0,
WC_SHA256_PAD_SIZE - sha256->buffLen);
/* put lengths in bits */
sha256->hiLen = (sha256->loLen >> (8 * sizeof(sha256->loLen) - 3)) +
(sha256->hiLen << 3);
sha256->loLen = sha256->loLen << 3;
/* store lengths */
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
if (!IS_INTEL_AVX1(intel_flags) && !IS_INTEL_AVX2(intel_flags))
#endif
{
ByteReverseWords(sha256->buffer, sha256->buffer,
WC_SHA256_BLOCK_SIZE);
}
#endif
/* ! length ordering dependent on digest endian type ! */
XMEMCPY(&local[WC_SHA256_PAD_SIZE], &sha256->hiLen, sizeof(word32));
XMEMCPY(&local[WC_SHA256_PAD_SIZE + sizeof(word32)], &sha256->loLen,
sizeof(word32));
#if defined(FREESCALE_MMCAU_SHA) || defined(HAVE_INTEL_AVX1) || \
defined(HAVE_INTEL_AVX2)
/* Kinetis requires only these bytes reversed */
#if defined(HAVE_INTEL_AVX1) || defined(HAVE_INTEL_AVX2)
if (IS_INTEL_AVX1(intel_flags) || IS_INTEL_AVX2(intel_flags))
#endif
{
ByteReverseWords(
&sha256->buffer[WC_SHA256_PAD_SIZE / sizeof(word32)],
&sha256->buffer[WC_SHA256_PAD_SIZE / sizeof(word32)],
2 * sizeof(word32));
}
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
if (sha256->ctx.mode == ESP32_SHA_INIT) {
esp_sha_try_hw_lock(&sha256->ctx);
}
if (sha256->ctx.mode == ESP32_SHA_SW) {
ret = XTRANSFORM(sha256, (const byte*)local);
} else {
ret = esp_sha256_digest_process(sha256, 1);
}
#else
ret = XTRANSFORM(sha256, (const byte*)local);
#endif
return ret;
}
int wc_Sha256FinalRaw(wc_Sha256* sha256, byte* hash)
{
#ifdef LITTLE_ENDIAN_ORDER
word32 digest[WC_SHA256_DIGEST_SIZE / sizeof(word32)];
#endif
if (sha256 == NULL || hash == NULL) {
return BAD_FUNC_ARG;
}
#ifdef LITTLE_ENDIAN_ORDER
ByteReverseWords((word32*)digest, (word32*)sha256->digest,
WC_SHA256_DIGEST_SIZE);
XMEMCPY(hash, digest, WC_SHA256_DIGEST_SIZE);
#else
XMEMCPY(hash, sha256->digest, WC_SHA256_DIGEST_SIZE);
#endif
return 0;
}
int wc_Sha256Final(wc_Sha256* sha256, byte* hash)
{
int ret;
if (sha256 == NULL || hash == NULL) {
return BAD_FUNC_ARG;
}
#ifdef WOLF_CRYPTO_CB
if (sha256->devId != INVALID_DEVID) {
ret = wc_CryptoCb_Sha256Hash(sha256, NULL, 0, hash);
if (ret != CRYPTOCB_UNAVAILABLE)
return ret;
/* fall-through when unavailable */
}
#endif
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA256)
if (sha256->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA256) {
#if defined(HAVE_INTEL_QA)
return IntelQaSymSha256(&sha256->asyncDev, hash, NULL,
WC_SHA256_DIGEST_SIZE);
#endif
}
#endif /* WOLFSSL_ASYNC_CRYPT */
ret = Sha256Final(sha256);
if (ret != 0)
return ret;
#if defined(LITTLE_ENDIAN_ORDER)
ByteReverseWords(sha256->digest, sha256->digest, WC_SHA256_DIGEST_SIZE);
#endif
XMEMCPY(hash, sha256->digest, WC_SHA256_DIGEST_SIZE);
return InitSha256(sha256); /* reset state */
}
#endif /* XTRANSFORM */
#ifdef WOLFSSL_SHA224
#ifdef STM32_HASH_SHA2
/* Supports CubeMX HAL or Standard Peripheral Library */
int wc_InitSha224_ex(wc_Sha224* sha224, void* heap, int devId)
{
if (sha224 == NULL)
return BAD_FUNC_ARG;
(void)devId;
(void)heap;
wc_Stm32_Hash_Init(&sha224->stmCtx);
return 0;
}
int wc_Sha224Update(wc_Sha224* sha224, const byte* data, word32 len)
{
int ret = 0;
if (sha224 == NULL || (data == NULL && len > 0)) {
return BAD_FUNC_ARG;
}
ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
ret = wc_Stm32_Hash_Update(&sha224->stmCtx,
HASH_AlgoSelection_SHA224, data, len);
wolfSSL_CryptHwMutexUnLock();
}
return ret;
}
int wc_Sha224Final(wc_Sha224* sha224, byte* hash)
{
int ret = 0;
if (sha224 == NULL || hash == NULL) {
return BAD_FUNC_ARG;
}
ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
ret = wc_Stm32_Hash_Final(&sha224->stmCtx,
HASH_AlgoSelection_SHA224, hash, WC_SHA224_DIGEST_SIZE);
wolfSSL_CryptHwMutexUnLock();
}
(void)wc_InitSha224(sha224); /* reset state */
return ret;
}
#elif defined(WOLFSSL_IMX6_CAAM) && !defined(NO_IMX6_CAAM_HASH)
/* functions defined in wolfcrypt/src/port/caam/caam_sha256.c */
#elif defined(WOLFSSL_AFALG_HASH)
#error SHA224 currently not supported with AF_ALG enabled
#elif defined(WOLFSSL_DEVCRYPTO_HASH)
/* implemented in wolfcrypt/src/port/devcrypto/devcrypt_hash.c */
#else
#define NEED_SOFT_SHA224
static int InitSha224(wc_Sha224* sha224)
{
int ret = 0;
if (sha224 == NULL) {
return BAD_FUNC_ARG;
}
sha224->digest[0] = 0xc1059ed8;
sha224->digest[1] = 0x367cd507;
sha224->digest[2] = 0x3070dd17;
sha224->digest[3] = 0xf70e5939;
sha224->digest[4] = 0xffc00b31;
sha224->digest[5] = 0x68581511;
sha224->digest[6] = 0x64f98fa7;
sha224->digest[7] = 0xbefa4fa4;
sha224->buffLen = 0;
sha224->loLen = 0;
sha224->hiLen = 0;
#if defined(HAVE_INTEL_AVX1)|| defined(HAVE_INTEL_AVX2)
/* choose best Transform function under this runtime environment */
Sha256_SetTransform();
#endif
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
sha224->flags = 0;
#endif
return ret;
}
#endif
#ifdef NEED_SOFT_SHA224
int wc_InitSha224_ex(wc_Sha224* sha224, void* heap, int devId)
{
int ret = 0;
if (sha224 == NULL)
return BAD_FUNC_ARG;
sha224->heap = heap;
ret = InitSha224(sha224);
if (ret != 0)
return ret;
#ifdef WOLFSSL_SMALL_STACK_CACHE
sha224->W = NULL;
#endif
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA224)
ret = wolfAsync_DevCtxInit(&sha224->asyncDev,
WOLFSSL_ASYNC_MARKER_SHA224, sha224->heap, devId);
#else
(void)devId;
#endif /* WOLFSSL_ASYNC_CRYPT */
return ret;
}
int wc_Sha224Update(wc_Sha224* sha224, const byte* data, word32 len)
{
int ret;
if (sha224 == NULL || (data == NULL && len > 0)) {
return BAD_FUNC_ARG;
}
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA224)
if (sha224->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA224) {
#if defined(HAVE_INTEL_QA)
return IntelQaSymSha224(&sha224->asyncDev, NULL, data, len);
#endif
}
#endif /* WOLFSSL_ASYNC_CRYPT */
ret = Sha256Update((wc_Sha256*)sha224, data, len);
return ret;
}
int wc_Sha224Final(wc_Sha224* sha224, byte* hash)
{
int ret;
if (sha224 == NULL || hash == NULL) {
return BAD_FUNC_ARG;
}
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA224)
if (sha224->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA224) {
#if defined(HAVE_INTEL_QA)
return IntelQaSymSha224(&sha224->asyncDev, hash, NULL,
WC_SHA224_DIGEST_SIZE);
#endif
}
#endif /* WOLFSSL_ASYNC_CRYPT */
ret = Sha256Final((wc_Sha256*)sha224);
if (ret != 0)
return ret;
#if defined(LITTLE_ENDIAN_ORDER)
ByteReverseWords(sha224->digest, sha224->digest, WC_SHA224_DIGEST_SIZE);
#endif
XMEMCPY(hash, sha224->digest, WC_SHA224_DIGEST_SIZE);
return InitSha224(sha224); /* reset state */
}
#endif /* end of SHA224 software implementation */
int wc_InitSha224(wc_Sha224* sha224)
{
return wc_InitSha224_ex(sha224, NULL, INVALID_DEVID);
}
void wc_Sha224Free(wc_Sha224* sha224)
{
if (sha224 == NULL)
return;
#ifdef WOLFSSL_SMALL_STACK_CACHE
if (sha224->W != NULL) {
XFREE(sha224->W, NULL, DYNAMIC_TYPE_DIGEST);
sha224->W = NULL;
}
#endif
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA224)
wolfAsync_DevCtxFree(&sha224->asyncDev, WOLFSSL_ASYNC_MARKER_SHA224);
#endif /* WOLFSSL_ASYNC_CRYPT */
#ifdef WOLFSSL_PIC32MZ_HASH
wc_Sha256Pic32Free(sha224);
#endif
}
#endif /* WOLFSSL_SHA224 */
int wc_InitSha256(wc_Sha256* sha256)
{
return wc_InitSha256_ex(sha256, NULL, INVALID_DEVID);
}
void wc_Sha256Free(wc_Sha256* sha256)
{
if (sha256 == NULL)
return;
#ifdef WOLFSSL_SMALL_STACK_CACHE
if (sha256->W != NULL) {
XFREE(sha256->W, NULL, DYNAMIC_TYPE_DIGEST);
sha256->W = NULL;
}
#endif
#if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA256)
wolfAsync_DevCtxFree(&sha256->asyncDev, WOLFSSL_ASYNC_MARKER_SHA256);
#endif /* WOLFSSL_ASYNC_CRYPT */
#ifdef WOLFSSL_PIC32MZ_HASH
wc_Sha256Pic32Free(sha256);
#endif
#if defined(WOLFSSL_AFALG_HASH)
if (sha256->alFd > 0) {
close(sha256->alFd);
sha256->alFd = -1; /* avoid possible double close on socket */
}
if (sha256->rdFd > 0) {
close(sha256->rdFd);
sha256->rdFd = -1; /* avoid possible double close on socket */
}
#endif /* WOLFSSL_AFALG_HASH */
#ifdef WOLFSSL_DEVCRYPTO_HASH
wc_DevCryptoFree(&sha256->ctx);
#endif /* WOLFSSL_DEVCRYPTO */
#if (defined(WOLFSSL_AFALG_HASH) && defined(WOLFSSL_AFALG_HASH_KEEP)) || \
(defined(WOLFSSL_DEVCRYPTO_HASH) && defined(WOLFSSL_DEVCRYPTO_HASH_KEEP)) || \
(defined(WOLFSSL_RENESAS_TSIP_CRYPT) && \
!defined(NO_WOLFSSL_RENESAS_TSIP_CRYPT_HASH))
if (sha256->msg != NULL) {
XFREE(sha256->msg, sha256->heap, DYNAMIC_TYPE_TMP_BUFFER);
sha256->msg = NULL;
}
#endif
}
#endif /* !WOLFSSL_TI_HASH */
#endif /* HAVE_FIPS */
#ifndef WOLFSSL_TI_HASH
#ifdef WOLFSSL_SHA224
int wc_Sha224GetHash(wc_Sha224* sha224, byte* hash)
{
int ret;
wc_Sha224 tmpSha224;
if (sha224 == NULL || hash == NULL)
return BAD_FUNC_ARG;
ret = wc_Sha224Copy(sha224, &tmpSha224);
if (ret == 0) {
ret = wc_Sha224Final(&tmpSha224, hash);
wc_Sha224Free(&tmpSha224);
}
return ret;
}
int wc_Sha224Copy(wc_Sha224* src, wc_Sha224* dst)
{
int ret = 0;
if (src == NULL || dst == NULL)
return BAD_FUNC_ARG;
XMEMCPY(dst, src, sizeof(wc_Sha224));
#ifdef WOLFSSL_SMALL_STACK_CACHE
dst->W = NULL;
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
#endif
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
dst->flags |= WC_HASH_FLAG_ISCOPY;
#endif
return ret;
}
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
int wc_Sha224SetFlags(wc_Sha224* sha224, word32 flags)
{
if (sha224) {
sha224->flags = flags;
}
return 0;
}
int wc_Sha224GetFlags(wc_Sha224* sha224, word32* flags)
{
if (sha224 && flags) {
*flags = sha224->flags;
}
return 0;
}
#endif
#endif /* WOLFSSL_SHA224 */
#ifdef WOLFSSL_AFALG_HASH
/* implemented in wolfcrypt/src/port/af_alg/afalg_hash.c */
#elif defined(WOLFSSL_DEVCRYPTO_HASH)
/* implemented in wolfcrypt/src/port/devcrypto/devcrypt_hash.c */
#elif defined(WOLFSSL_RENESAS_TSIP_CRYPT) && \
!defined(NO_WOLFSSL_RENESAS_TSIP_CRYPT_HASH)
/* implemented in wolfcrypt/src/port/Renesas/renesas_tsip_sha.c */
#else
int wc_Sha256GetHash(wc_Sha256* sha256, byte* hash)
{
int ret;
wc_Sha256 tmpSha256;
if (sha256 == NULL || hash == NULL)
return BAD_FUNC_ARG;
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
if(sha256->ctx.mode == ESP32_SHA_INIT){
esp_sha_try_hw_lock(&sha256->ctx);
}
if(sha256->ctx.mode == ESP32_SHA_HW)
{
esp_sha256_digest_process(sha256, 0);
}
#endif
ret = wc_Sha256Copy(sha256, &tmpSha256);
if (ret == 0) {
ret = wc_Sha256Final(&tmpSha256, hash);
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
sha256->ctx.mode = ESP32_SHA_SW;
#endif
wc_Sha256Free(&tmpSha256);
}
return ret;
}
int wc_Sha256Copy(wc_Sha256* src, wc_Sha256* dst)
{
int ret = 0;
if (src == NULL || dst == NULL)
return BAD_FUNC_ARG;
XMEMCPY(dst, src, sizeof(wc_Sha256));
#ifdef WOLFSSL_SMALL_STACK_CACHE
dst->W = NULL;
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
#endif
#ifdef WOLFSSL_PIC32MZ_HASH
ret = wc_Pic32HashCopy(&src->cache, &dst->cache);
#endif
#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
!defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
dst->ctx.mode = src->ctx.mode;
dst->ctx.isfirstblock = src->ctx.isfirstblock;
dst->ctx.sha_type = src->ctx.sha_type;
#endif
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
dst->flags |= WC_HASH_FLAG_ISCOPY;
#endif
return ret;
}
#endif
#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
int wc_Sha256SetFlags(wc_Sha256* sha256, word32 flags)
{
if (sha256) {
sha256->flags = flags;
}
return 0;
}
int wc_Sha256GetFlags(wc_Sha256* sha256, word32* flags)
{
if (sha256 && flags) {
*flags = sha256->flags;
}
return 0;
}
#endif
#endif /* !WOLFSSL_TI_HASH */
#endif /* NO_SHA256 */