/*
|
* SHA-1 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 _SHA1_ALT_H_
|
#define _SHA1_ALT_H_
|
|
#ifdef __cplusplus
|
extern "C" {
|
#endif
|
|
#if defined(MBEDTLS_SHA1_ALT)
|
|
typedef enum {
|
ESP_MBEDTLS_SHA1_UNUSED, /* first block hasn't been processed yet */
|
ESP_MBEDTLS_SHA1_HARDWARE, /* using hardware SHA engine */
|
ESP_MBEDTLS_SHA1_SOFTWARE, /* using software SHA */
|
} esp_mbedtls_sha1_mode;
|
|
/**
|
* \brief SHA-1 context structure
|
*/
|
typedef struct
|
{
|
uint32_t total[2]; /*!< number of bytes processed */
|
uint32_t state[5]; /*!< intermediate digest state */
|
unsigned char buffer[64]; /*!< data block being processed */
|
esp_mbedtls_sha1_mode mode;
|
}
|
mbedtls_sha1_context;
|
|
#endif
|
|
#ifdef __cplusplus
|
}
|
#endif
|
|
#endif
|
