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hash_stm32.h
1 /**
2  ******************************************************************************
3  * @brief Header file of mbed TLS HW crypto (HASH) implementation.
4  ******************************************************************************
5  * @attention
6  *
7  * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
8  * SPDX-License-Identifier: Apache-2.0
9  * Copyright (C) 2019 STMicroelectronics, All Rights Reserved
10  *
11  * This software component is licensed by ST under Apache 2.0 license,
12  * the "License"; You may not use this file except in compliance with the
13  * License. You may obtain a copy of the License at:
14  * https://opensource.org/licenses/Apache-2.0
15  *
16  ******************************************************************************
17  */
18 
19 /* Define to prevent recursive inclusion -------------------------------------*/
20 #ifndef __HASH_H
21 #define __HASH_H
22 
23 #if defined(MBEDTLS_SHA1_ALT) || defined(MBEDTLS_SHA256_ALT) || defined(MBEDTLS_MD5_ALT)
24 
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
28 
29 /* Includes ------------------------------------------------------------------*/
30 #include "cmsis.h"
31 
32 #if defined(MBEDTLS_THREADING_C)
33 #include "mbedtls/threading.h"
34 #endif
35 
36 /* macros --------------------------------------------------------------------*/
37 /* constants -----------------------------------------------------------------*/
38 #define ST_HASH_TIMEOUT ((uint32_t) 1000) /* TO in ms for the hash processor */
39 
40 /* defines -------------------------------------------------------------------*/
41 /* variables -----------------------------------------------------------------*/
42 #if defined(MBEDTLS_THREADING_C)
43 extern mbedtls_threading_mutex_t hash_mutex;
44 extern unsigned char hash_mutex_started;
45 #endif /* MBEDTLS_THREADING_C */
46 
47 extern unsigned int hash_context_count;
48 
49 /* functions prototypes ------------------------------------------------------*/
50 extern void hash_zeroize(void *v, size_t n);
51 
52 #ifdef __cplusplus
53 }
54 #endif
55 
56 #endif /* MBEDTLS_SHA1_ALT or MBEDTLS_SHA256_ALT or MBEDTLS_MD5_ALT */
57 #endif /*__HASH_H */
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