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- /* sha.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>
- #if !defined(NO_SHA)
- #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$j")
- #pragma const_seg(".fipsB$j")
- #endif
- #endif
- #include <wolfssl/wolfcrypt/sha.h>
- #include <wolfssl/wolfcrypt/error-crypt.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_InitSha(wc_Sha* sha)
- {
- if (sha == NULL) {
- return BAD_FUNC_ARG;
- }
- return InitSha_fips(sha);
- }
- int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
- {
- (void)heap;
- (void)devId;
- if (sha == NULL) {
- return BAD_FUNC_ARG;
- }
- return InitSha_fips(sha);
- }
- int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
- {
- if (sha == NULL || (data == NULL && len > 0)) {
- return BAD_FUNC_ARG;
- }
- return ShaUpdate_fips(sha, data, len);
- }
- int wc_ShaFinal(wc_Sha* sha, byte* out)
- {
- if (sha == NULL || out == NULL) {
- return BAD_FUNC_ARG;
- }
- return ShaFinal_fips(sha,out);
- }
- void wc_ShaFree(wc_Sha* 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 */
- #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
- /* Hardware Acceleration */
- #if defined(WOLFSSL_PIC32MZ_HASH)
- #include <wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h>
- #elif defined(STM32_HASH)
- /* Supports CubeMX HAL or Standard Peripheral Library */
- int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
- {
- if (sha == NULL) {
- return BAD_FUNC_ARG;
- }
- (void)devId;
- (void)heap;
- wc_Stm32_Hash_Init(&sha->stmCtx);
- return 0;
- }
- int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
- {
- int ret;
- if (sha == NULL || (data == NULL && len > 0)) {
- return BAD_FUNC_ARG;
- }
- ret = wolfSSL_CryptHwMutexLock();
- if (ret == 0) {
- ret = wc_Stm32_Hash_Update(&sha->stmCtx, HASH_AlgoSelection_SHA1,
- data, len);
- wolfSSL_CryptHwMutexUnLock();
- }
- return ret;
- }
- int wc_ShaFinal(wc_Sha* sha, byte* hash)
- {
- int ret;
- if (sha == NULL || hash == NULL) {
- return BAD_FUNC_ARG;
- }
- ret = wolfSSL_CryptHwMutexLock();
- if (ret == 0) {
- ret = wc_Stm32_Hash_Final(&sha->stmCtx, HASH_AlgoSelection_SHA1,
- hash, WC_SHA_DIGEST_SIZE);
- wolfSSL_CryptHwMutexUnLock();
- }
- (void)wc_InitSha(sha); /* reset state */
- return ret;
- }
- #elif defined(FREESCALE_LTC_SHA)
- #include "fsl_ltc.h"
- int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
- {
- if (sha == NULL) {
- return BAD_FUNC_ARG;
- }
- (void)devId;
- (void)heap;
- LTC_HASH_Init(LTC_BASE, &sha->ctx, kLTC_Sha1, NULL, 0);
- return 0;
- }
- int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
- {
- LTC_HASH_Update(&sha->ctx, data, len);
- return 0;
- }
- int wc_ShaFinal(wc_Sha* sha, byte* hash)
- {
- word32 hashlen = WC_SHA_DIGEST_SIZE;
- LTC_HASH_Finish(&sha->ctx, hash, &hashlen);
- return wc_InitSha(sha); /* reset state */
- }
- #elif defined(FREESCALE_MMCAU_SHA)
- #ifdef FREESCALE_MMCAU_CLASSIC_SHA
- #include "cau_api.h"
- #else
- #include "fsl_mmcau.h"
- #endif
- #define USE_SHA_SOFTWARE_IMPL /* Only for API's, actual transform is here */
- #define XTRANSFORM(S,B) Transform((S),(B))
- #define XTRANSFORM_LEN(S,B,L) Transform_Len((S),(B),(L))
- #ifndef WC_HASH_DATA_ALIGNMENT
- /* these hardware API's require 4 byte (word32) alignment */
- #define WC_HASH_DATA_ALIGNMENT 4
- #endif
- static int InitSha(wc_Sha* sha)
- {
- int ret = 0;
- ret = wolfSSL_CryptHwMutexLock();
- if (ret != 0) {
- return ret;
- }
- #ifdef FREESCALE_MMCAU_CLASSIC_SHA
- cau_sha1_initialize_output(sha->digest);
- #else
- MMCAU_SHA1_InitializeOutput((word32*)sha->digest);
- #endif
- wolfSSL_CryptHwMutexUnLock();
- sha->buffLen = 0;
- sha->loLen = 0;
- sha->hiLen = 0;
- return ret;
- }
- static int Transform(wc_Sha* sha, const byte* data)
- {
- int ret = wolfSSL_CryptHwMutexLock();
- if (ret == 0) {
- #ifdef FREESCALE_MMCAU_CLASSIC_SHA
- cau_sha1_hash_n((byte*)data, 1, sha->digest);
- #else
- MMCAU_SHA1_HashN((byte*)data, 1, (word32*)sha->digest);
- #endif
- wolfSSL_CryptHwMutexUnLock();
- }
- return ret;
- }
- static int Transform_Len(wc_Sha* sha, 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*)sha->buffer;
- while (len >= WC_SHA_BLOCK_SIZE) {
- XMEMCPY(local, data, WC_SHA_BLOCK_SIZE);
- #ifdef FREESCALE_MMCAU_CLASSIC_SHA
- cau_sha1_hash_n(local, 1, sha->digest);
- #else
- MMCAU_SHA1_HashN(local, 1, sha->digest);
- #endif
- data += WC_SHA_BLOCK_SIZE;
- len -= WC_SHA_BLOCK_SIZE;
- }
- }
- else
- #endif
- {
- #ifdef FREESCALE_MMCAU_CLASSIC_SHA
- cau_sha1_hash_n((byte*)data, len/WC_SHA_BLOCK_SIZE, sha->digest);
- #else
- MMCAU_SHA1_HashN((byte*)data, len/WC_SHA_BLOCK_SIZE,
- (word32*)sha->digest);
- #endif
- }
- wolfSSL_CryptHwMutexUnLock();
- }
- return ret;
- }
- #elif defined(WOLFSSL_IMX6_CAAM) && !defined(NO_IMX6_CAAM_HASH) && \
- !defined(WOLFSSL_QNX_CAAM)
- /* wolfcrypt/src/port/caam/caam_sha.c */
- #elif defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- #include "wolfssl/wolfcrypt/port/Espressif/esp32-crypt.h"
- #define USE_SHA_SOFTWARE_IMPL
- static int InitSha(wc_Sha* sha)
- {
- int ret = 0;
- sha->digest[0] = 0x67452301L;
- sha->digest[1] = 0xEFCDAB89L;
- sha->digest[2] = 0x98BADCFEL;
- sha->digest[3] = 0x10325476L;
- sha->digest[4] = 0xC3D2E1F0L;
- sha->buffLen = 0;
- sha->loLen = 0;
- sha->hiLen = 0;
- /* always start firstblock = 1 when using hw engine */
- sha->ctx.isfirstblock = 1;
- sha->ctx.sha_type = SHA1;
- if(sha->ctx.mode == ESP32_SHA_HW){
- /* release hw engine */
- esp_sha_hw_unlock();
- }
- /* always set mode as INIT
- * whether using HW or SW is determined at first call of update()
- */
- sha->ctx.mode = ESP32_SHA_INIT;
- 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 */
- #elif defined(WOLFSSL_IMXRT_DCP)
- /* implemented in wolfcrypt/src/port/nxp/dcp_port.c */
- #elif defined(WOLFSSL_SILABS_SE_ACCEL)
- /* implemented in wolfcrypt/src/port/silabs/silabs_hash.c */
- #else
- /* Software implementation */
- #define USE_SHA_SOFTWARE_IMPL
- static int InitSha(wc_Sha* sha)
- {
- int ret = 0;
- sha->digest[0] = 0x67452301L;
- sha->digest[1] = 0xEFCDAB89L;
- sha->digest[2] = 0x98BADCFEL;
- sha->digest[3] = 0x10325476L;
- sha->digest[4] = 0xC3D2E1F0L;
- sha->buffLen = 0;
- sha->loLen = 0;
- sha->hiLen = 0;
- #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
- sha->flags = 0;
- #endif
- return ret;
- }
- #endif /* End Hardware Acceleration */
- /* Software implementation */
- #ifdef USE_SHA_SOFTWARE_IMPL
- static WC_INLINE void AddLength(wc_Sha* sha, word32 len)
- {
- word32 tmp = sha->loLen;
- if ((sha->loLen += len) < tmp)
- sha->hiLen++; /* carry low to high */
- }
- /* Check if custom wc_Sha transform is used */
- #ifndef XTRANSFORM
- #define XTRANSFORM(S,B) Transform((S),(B))
- #define blk0(i) (W[i] = *((word32*)&data[i*sizeof(word32)]))
- #define blk1(i) (W[(i)&15] = \
- rotlFixed(W[((i)+13)&15]^W[((i)+8)&15]^W[((i)+2)&15]^W[(i)&15],1))
- #define f1(x,y,z) ((z)^((x) &((y)^(z))))
- #define f2(x,y,z) ((x)^(y)^(z))
- #define f3(x,y,z) (((x)&(y))|((z)&((x)|(y))))
- #define f4(x,y,z) ((x)^(y)^(z))
- #ifdef WOLFSSL_NUCLEUS_1_2
- /* nucleus.h also defines R1-R4 */
- #undef R1
- #undef R2
- #undef R3
- #undef R4
- #endif
- /* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
- #define R0(v,w,x,y,z,i) (z)+= f1((w),(x),(y)) + blk0((i)) + 0x5A827999+ \
- rotlFixed((v),5); (w) = rotlFixed((w),30);
- #define R1(v,w,x,y,z,i) (z)+= f1((w),(x),(y)) + blk1((i)) + 0x5A827999+ \
- rotlFixed((v),5); (w) = rotlFixed((w),30);
- #define R2(v,w,x,y,z,i) (z)+= f2((w),(x),(y)) + blk1((i)) + 0x6ED9EBA1+ \
- rotlFixed((v),5); (w) = rotlFixed((w),30);
- #define R3(v,w,x,y,z,i) (z)+= f3((w),(x),(y)) + blk1((i)) + 0x8F1BBCDC+ \
- rotlFixed((v),5); (w) = rotlFixed((w),30);
- #define R4(v,w,x,y,z,i) (z)+= f4((w),(x),(y)) + blk1((i)) + 0xCA62C1D6+ \
- rotlFixed((v),5); (w) = rotlFixed((w),30);
- static int Transform(wc_Sha* sha, const byte* data)
- {
- word32 W[WC_SHA_BLOCK_SIZE / sizeof(word32)];
- /* Copy context->state[] to working vars */
- word32 a = sha->digest[0];
- word32 b = sha->digest[1];
- word32 c = sha->digest[2];
- word32 d = sha->digest[3];
- word32 e = sha->digest[4];
- #ifdef USE_SLOW_SHA
- word32 t, i;
- for (i = 0; i < 16; i++) {
- R0(a, b, c, d, e, i);
- t = e; e = d; d = c; c = b; b = a; a = t;
- }
- for (; i < 20; i++) {
- R1(a, b, c, d, e, i);
- t = e; e = d; d = c; c = b; b = a; a = t;
- }
- for (; i < 40; i++) {
- R2(a, b, c, d, e, i);
- t = e; e = d; d = c; c = b; b = a; a = t;
- }
- for (; i < 60; i++) {
- R3(a, b, c, d, e, i);
- t = e; e = d; d = c; c = b; b = a; a = t;
- }
- for (; i < 80; i++) {
- R4(a, b, c, d, e, i);
- t = e; e = d; d = c; c = b; b = a; a = t;
- }
- #else
- /* nearly 1 K bigger in code size but 25% faster */
- /* 4 rounds of 20 operations each. Loop unrolled. */
- R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
- R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
- R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
- R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
- R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
- R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
- R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
- R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
- R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
- R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
- R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
- R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
- R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
- R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
- R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
- R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
- R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
- R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
- R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
- R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
- #endif
- /* Add the working vars back into digest state[] */
- sha->digest[0] += a;
- sha->digest[1] += b;
- sha->digest[2] += c;
- sha->digest[3] += d;
- sha->digest[4] += e;
- (void)data; /* Not used */
- return 0;
- }
- #endif /* !USE_CUSTOM_SHA_TRANSFORM */
- int wc_InitSha_ex(wc_Sha* sha, void* heap, int devId)
- {
- int ret = 0;
- if (sha == NULL)
- return BAD_FUNC_ARG;
- sha->heap = heap;
- #ifdef WOLF_CRYPTO_CB
- sha->devId = devId;
- #endif
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- sha->ctx.mode = ESP32_SHA_INIT;
- sha->ctx.isfirstblock = 1;
- #endif
- ret = InitSha(sha);
- if (ret != 0)
- return ret;
- #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
- ret = wolfAsync_DevCtxInit(&sha->asyncDev, WOLFSSL_ASYNC_MARKER_SHA,
- sha->heap, devId);
- #else
- (void)devId;
- #endif /* WOLFSSL_ASYNC_CRYPT */
- return ret;
- }
- /* do block size increments/updates */
- int wc_ShaUpdate(wc_Sha* sha, const byte* data, word32 len)
- {
- int ret = 0;
- word32 blocksLen;
- byte* local;
- if (sha == 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 (sha->devId != INVALID_DEVID) {
- ret = wc_CryptoCb_ShaHash(sha, data, len, NULL);
- if (ret != CRYPTOCB_UNAVAILABLE)
- return ret;
- ret = 0; /* reset ret */
- /* fall-through when unavailable */
- }
- #endif
- #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
- if (sha->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA) {
- #if defined(HAVE_INTEL_QA)
- return IntelQaSymSha(&sha->asyncDev, NULL, data, len);
- #endif
- }
- #endif /* WOLFSSL_ASYNC_CRYPT */
- /* check that internal buffLen is valid */
- if (sha->buffLen >= WC_SHA_BLOCK_SIZE)
- return BUFFER_E;
- /* add length for final */
- AddLength(sha, len);
- local = (byte*)sha->buffer;
- /* process any remainder from previous operation */
- if (sha->buffLen > 0) {
- blocksLen = min(len, WC_SHA_BLOCK_SIZE - sha->buffLen);
- XMEMCPY(&local[sha->buffLen], data, blocksLen);
- sha->buffLen += blocksLen;
- data += blocksLen;
- len -= blocksLen;
- if (sha->buffLen == WC_SHA_BLOCK_SIZE) {
- #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
- ByteReverseWords(sha->buffer, sha->buffer, WC_SHA_BLOCK_SIZE);
- #endif
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- if (sha->ctx.mode == ESP32_SHA_INIT) {
- esp_sha_try_hw_lock(&sha->ctx);
- }
- if (sha->ctx.mode == ESP32_SHA_SW) {
- ret = XTRANSFORM(sha, (const byte*)local);
- } else {
- esp_sha_process(sha, (const byte*)local);
- }
- #else
- ret = XTRANSFORM(sha, (const byte*)local);
- #endif
- if (ret != 0)
- return ret;
- sha->buffLen = 0;
- }
- }
- /* process blocks */
- #ifdef XTRANSFORM_LEN
- /* get number of blocks */
- /* 64-1 = 0x3F (~ Inverted = 0xFFFFFFC0) */
- /* len (masked by 0xFFFFFFC0) returns block aligned length */
- blocksLen = len & ~(WC_SHA_BLOCK_SIZE-1);
- if (blocksLen > 0) {
- /* Byte reversal performed in function if required. */
- XTRANSFORM_LEN(sha, data, blocksLen);
- data += blocksLen;
- len -= blocksLen;
- }
- #else
- while (len >= WC_SHA_BLOCK_SIZE) {
- word32* local32 = sha->buffer;
- /* optimization to avoid memcpy if data pointer is properly aligned */
- /* Little Endian requires byte swap, so can't use data directly */
- #if defined(WC_HASH_DATA_ALIGNMENT) && !defined(LITTLE_ENDIAN_ORDER)
- if (((size_t)data % WC_HASH_DATA_ALIGNMENT) == 0) {
- local32 = (word32*)data;
- }
- else
- #endif
- {
- XMEMCPY(local32, data, WC_SHA_BLOCK_SIZE);
- }
- data += WC_SHA_BLOCK_SIZE;
- len -= WC_SHA_BLOCK_SIZE;
- #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
- ByteReverseWords(local32, local32, WC_SHA_BLOCK_SIZE);
- #endif
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- if (sha->ctx.mode == ESP32_SHA_INIT){
- esp_sha_try_hw_lock(&sha->ctx);
- }
- if (sha->ctx.mode == ESP32_SHA_SW){
- ret = XTRANSFORM(sha, (const byte*)local32);
- } else {
- esp_sha_process(sha, (const byte*)local32);
- }
- #else
- ret = XTRANSFORM(sha, (const byte*)local32);
- #endif
- }
- #endif /* XTRANSFORM_LEN */
- /* save remainder */
- if (len > 0) {
- XMEMCPY(local, data, len);
- sha->buffLen = len;
- }
- return ret;
- }
- int wc_ShaFinalRaw(wc_Sha* sha, byte* hash)
- {
- #ifdef LITTLE_ENDIAN_ORDER
- word32 digest[WC_SHA_DIGEST_SIZE / sizeof(word32)];
- #endif
- if (sha == NULL || hash == NULL) {
- return BAD_FUNC_ARG;
- }
- #ifdef LITTLE_ENDIAN_ORDER
- ByteReverseWords((word32*)digest, (word32*)sha->digest, WC_SHA_DIGEST_SIZE);
- XMEMCPY(hash, digest, WC_SHA_DIGEST_SIZE);
- #else
- XMEMCPY(hash, sha->digest, WC_SHA_DIGEST_SIZE);
- #endif
- return 0;
- }
- int wc_ShaFinal(wc_Sha* sha, byte* hash)
- {
- int ret;
- byte* local;
- if (sha == NULL || hash == NULL) {
- return BAD_FUNC_ARG;
- }
- local = (byte*)sha->buffer;
- #ifdef WOLF_CRYPTO_CB
- if (sha->devId != INVALID_DEVID) {
- ret = wc_CryptoCb_ShaHash(sha, NULL, 0, hash);
- if (ret != CRYPTOCB_UNAVAILABLE)
- return ret;
- /* fall-through when unavailable */
- }
- #endif
- #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
- if (sha->asyncDev.marker == WOLFSSL_ASYNC_MARKER_SHA) {
- #if defined(HAVE_INTEL_QA)
- return IntelQaSymSha(&sha->asyncDev, hash, NULL, WC_SHA_DIGEST_SIZE);
- #endif
- }
- #endif /* WOLFSSL_ASYNC_CRYPT */
- local[sha->buffLen++] = 0x80; /* add 1 */
- /* pad with zeros */
- if (sha->buffLen > WC_SHA_PAD_SIZE) {
- XMEMSET(&local[sha->buffLen], 0, WC_SHA_BLOCK_SIZE - sha->buffLen);
- sha->buffLen += WC_SHA_BLOCK_SIZE - sha->buffLen;
- #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
- ByteReverseWords(sha->buffer, sha->buffer, WC_SHA_BLOCK_SIZE);
- #endif
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- if (sha->ctx.mode == ESP32_SHA_INIT) {
- esp_sha_try_hw_lock(&sha->ctx);
- }
- if (sha->ctx.mode == ESP32_SHA_SW) {
- ret = XTRANSFORM(sha, (const byte*)local);
- } else {
- ret = esp_sha_process(sha, (const byte*)local);
- }
- #else
- ret = XTRANSFORM(sha, (const byte*)local);
- #endif
- if (ret != 0)
- return ret;
- sha->buffLen = 0;
- }
- XMEMSET(&local[sha->buffLen], 0, WC_SHA_PAD_SIZE - sha->buffLen);
- #if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
- ByteReverseWords(sha->buffer, sha->buffer, WC_SHA_BLOCK_SIZE);
- #endif
- /* store lengths */
- /* put lengths in bits */
- sha->hiLen = (sha->loLen >> (8*sizeof(sha->loLen) - 3)) + (sha->hiLen << 3);
- sha->loLen = sha->loLen << 3;
- /* ! length ordering dependent on digest endian type ! */
- XMEMCPY(&local[WC_SHA_PAD_SIZE], &sha->hiLen, sizeof(word32));
- XMEMCPY(&local[WC_SHA_PAD_SIZE + sizeof(word32)], &sha->loLen, sizeof(word32));
- #if defined(FREESCALE_MMCAU_SHA)
- /* Kinetis requires only these bytes reversed */
- ByteReverseWords(&sha->buffer[WC_SHA_PAD_SIZE/sizeof(word32)],
- &sha->buffer[WC_SHA_PAD_SIZE/sizeof(word32)],
- 2 * sizeof(word32));
- #endif
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- if (sha->ctx.mode == ESP32_SHA_INIT) {
- esp_sha_try_hw_lock(&sha->ctx);
- }
- if (sha->ctx.mode == ESP32_SHA_SW) {
- ret = XTRANSFORM(sha, (const byte*)local);
- } else {
- ret = esp_sha_digest_process(sha, 1);
- }
- #else
- ret = XTRANSFORM(sha, (const byte*)local);
- #endif
- #ifdef LITTLE_ENDIAN_ORDER
- ByteReverseWords(sha->digest, sha->digest, WC_SHA_DIGEST_SIZE);
- #endif
- XMEMCPY(hash, sha->digest, WC_SHA_DIGEST_SIZE);
- (void)InitSha(sha); /* reset state */
- return ret;
- }
- #endif /* USE_SHA_SOFTWARE_IMPL */
- int wc_InitSha(wc_Sha* sha)
- {
- return wc_InitSha_ex(sha, NULL, INVALID_DEVID);
- }
- void wc_ShaFree(wc_Sha* sha)
- {
- if (sha == NULL)
- return;
- #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_SHA)
- wolfAsync_DevCtxFree(&sha->asyncDev, WOLFSSL_ASYNC_MARKER_SHA);
- #endif /* WOLFSSL_ASYNC_CRYPT */
- #ifdef WOLFSSL_PIC32MZ_HASH
- wc_ShaPic32Free(sha);
- #endif
- #if (defined(WOLFSSL_RENESAS_TSIP_CRYPT) && \
- !defined(NO_WOLFSSL_RENESAS_TSIP_CRYPT_HASH))
- if (sha->msg != NULL) {
- XFREE(sha->msg, sha->heap, DYNAMIC_TYPE_TMP_BUFFER);
- sha->msg = NULL;
- }
- #endif
- #ifdef WOLFSSL_IMXRT_DCP
- DCPShaFree(sha);
- #endif
- }
- #endif /* !WOLFSSL_TI_HASH */
- #endif /* HAVE_FIPS */
- #ifndef WOLFSSL_TI_HASH
- #if !defined(WOLFSSL_RENESAS_TSIP_CRYPT) || \
- defined(NO_WOLFSSL_RENESAS_TSIP_CRYPT_HASH)
- int wc_ShaGetHash(wc_Sha* sha, byte* hash)
- {
- int ret;
- wc_Sha tmpSha;
- if (sha == NULL || hash == NULL)
- return BAD_FUNC_ARG;
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- if(sha->ctx.mode == ESP32_SHA_INIT){
- esp_sha_try_hw_lock(&sha->ctx);
- }
- if(sha->ctx.mode != ESP32_SHA_SW)
- esp_sha_digest_process(sha, 0);
- #endif
- ret = wc_ShaCopy(sha, &tmpSha);
- if (ret == 0) {
- ret = wc_ShaFinal(&tmpSha, hash);
- #if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
- !defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
- sha->ctx.mode = ESP32_SHA_SW;
- #endif
- }
- return ret;
- }
- int wc_ShaCopy(wc_Sha* src, wc_Sha* dst)
- {
- int ret = 0;
- if (src == NULL || dst == NULL)
- return BAD_FUNC_ARG;
- XMEMCPY(dst, src, sizeof(wc_Sha));
- #ifdef WOLFSSL_SILABS_SE_ACCEL
- dst->silabsCtx.hash_ctx.cmd_ctx = &(dst->silabsCtx.cmd_ctx);
- dst->silabsCtx.hash_ctx.hash_type_ctx = &(dst->silabsCtx.hash_type_ctx);
- #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 /* defined(WOLFSSL_RENESAS_TSIP_CRYPT) ... */
- #endif /* !WOLFSSL_TI_HASH */
- #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
- int wc_ShaSetFlags(wc_Sha* sha, word32 flags)
- {
- if (sha) {
- sha->flags = flags;
- }
- return 0;
- }
- int wc_ShaGetFlags(wc_Sha* sha, word32* flags)
- {
- if (sha && flags) {
- *flags = sha->flags;
- }
- return 0;
- }
- #endif
- #endif /* !NO_SHA */
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