mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
|
|
* SHA-512 implementation with hardware ESP32 support added.
|
|
* Uses mbedTLS software implementation for failover when concurrent
|
|
* SHA operations are in use.
|
|
*
|
|
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
|
|
* Additions Copyright (C) 2016, Espressif Systems (Shanghai) PTE LTD
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
#ifndef _SHA512_ALT_H_
|
|
#define _SHA512_ALT_H_
|
|
|
|
#if defined(MBEDTLS_SHA512_ALT)
|
|
|
|
#include "hal/sha_types.h"
|
|
#include "soc/sha_caps.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
#if SOC_SHA_SUPPORT_PARALLEL_ENG
|
|
|
|
typedef enum {
|
|
ESP_MBEDTLS_SHA512_UNUSED, /* first block hasn't been processed yet */
|
|
ESP_MBEDTLS_SHA512_HARDWARE, /* using hardware SHA engine */
|
|
ESP_MBEDTLS_SHA512_SOFTWARE, /* using software SHA */
|
|
} esp_mbedtls_sha512_mode;
|
|
|
|
/**
|
|
* \brief SHA-512 context structure
|
|
*/
|
|
typedef struct {
|
|
uint64_t total[2]; /*!< number of bytes processed */
|
|
uint64_t state[8]; /*!< intermediate digest state */
|
|
unsigned char buffer[128]; /*!< data block being processed */
|
|
int is384; /*!< 0 => SHA-512, else SHA-384 */
|
|
esp_mbedtls_sha512_mode mode;
|
|
} mbedtls_sha512_context;
|
|
|
|
#elif SOC_SHA_SUPPORT_DMA
|
|
|
|
typedef enum {
|
|
ESP_SHA512_STATE_INIT,
|
|
ESP_SHA512_STATE_IN_PROCESS
|
|
} esp_sha512_state;
|
|
|
|
/**
|
|
* \brief SHA-512 context structure
|
|
*/
|
|
typedef struct {
|
|
uint64_t total[2]; /*!< number of bytes processed */
|
|
uint64_t state[8]; /*!< intermediate digest state */
|
|
unsigned char buffer[128]; /*!< data block being processed */
|
|
int first_block;
|
|
esp_sha_type mode;
|
|
uint32_t t_val; /*!< t_val for 512/t mode */
|
|
esp_sha512_state sha_state;
|
|
} mbedtls_sha512_context;
|
|
|
|
/**
|
|
* @brief Sets the specfic algorithm for SHA512
|
|
*
|
|
* @param ctx The mbedtls sha512 context
|
|
*
|
|
* @param type The mode, used for setting SHA2_512224 and SHA2_512256:
|
|
*
|
|
*/
|
|
void esp_sha512_set_mode(mbedtls_sha512_context *ctx, esp_sha_type type);
|
|
|
|
/* For SHA512/t mode the intial hash value will depend on t */
|
|
void esp_sha512_set_t( mbedtls_sha512_context *ctx, uint16_t t_val);
|
|
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|