1 /*
2  * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 #pragma once
7 
8 /* Provide a SHA256 API for bootloader_support code,
9    that can be used from bootloader or app code.
10 
11    This header is available to source code in the bootloader & bootloader_support components only.
12    Use mbedTLS APIs or include esp32/sha.h to calculate SHA256 in IDF apps.
13 */
14 
15 #include <stdint.h>
16 #include <stdlib.h>
17 #include "esp_err.h"
18 
19 typedef void *bootloader_sha256_handle_t;
20 
21 bootloader_sha256_handle_t bootloader_sha256_start(void);
22 
23 void bootloader_sha256_data(bootloader_sha256_handle_t handle, const void *data, size_t data_len);
24 
25 void bootloader_sha256_finish(bootloader_sha256_handle_t handle, uint8_t *digest);
26