lpc55xx_crypto.c
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1 /**
2  * @file lpc55xx_crypto.c
3  * @brief LPC5500 hardware cryptographic accelerator
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2010-2023 Oryx Embedded SARL. All rights reserved.
10  *
11  * This file is part of CycloneCRYPTO Open.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License
15  * as published by the Free Software Foundation; either version 2
16  * of the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software Foundation,
25  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26  *
27  * @author Oryx Embedded SARL (www.oryx-embedded.com)
28  * @version 2.3.4
29  **/
30 
31 //Switch to the appropriate trace level
32 #define TRACE_LEVEL CRYPTO_TRACE_LEVEL
33 
34 //Dependencies
35 #include "fsl_device_registers.h"
36 #include "fsl_hashcrypt.h"
37 #include "fsl_casper.h"
38 #include "core/crypto.h"
44 #include "debug.h"
45 
46 //Global variables
48 
49 
50 /**
51  * @brief Initialize hardware cryptographic accelerator
52  * @return Error code
53  **/
54 
56 {
57  error_t error;
58 
59  //Initialize status code
60  error = NO_ERROR;
61 
62  //Create a mutex to prevent simultaneous access to the hardware
63  //cryptographic accelerator
65  {
66  //Failed to create mutex
67  error = ERROR_OUT_OF_RESOURCES;
68  }
69 
70 #if (LPC55XX_CRYPTO_TRNG_SUPPORT == ENABLED)
71  //Check status code
72  if(!error)
73  {
74  //Initialize TRNG module
75  error = trngInit();
76  }
77 #endif
78 
79 #if (LPC55XX_CRYPTO_HASH_SUPPORT == ENABLED || \
80  LPC55XX_CRYPTO_CIPHER_SUPPORT == ENABLED)
81  //Check status code
82  if(!error)
83  {
84  //Initialize HASHCRYPT peripheral
85  HASHCRYPT_Init(HASHCRYPT);
86  }
87 #endif
88 
89 #if (LPC55XX_CRYPTO_PKC_SUPPORT == ENABLED)
90  //Check status code
91  if(!error)
92  {
93  //Initialize CASPER peripheral
94  CASPER_Init(CASPER);
95  }
96 #endif
97 
98  //Return status code
99  return error;
100 }
error_t trngInit(void)
TRNG module initialization.
General definitions for cryptographic algorithms.
Debugging facilities.
error_t
Error codes.
Definition: error.h:43
@ ERROR_OUT_OF_RESOURCES
Definition: error.h:64
@ NO_ERROR
Success.
Definition: error.h:44
error_t lpc55xxCryptoInit(void)
Initialize hardware cryptographic accelerator.
OsMutex lpc55xxCryptoMutex
LPC5500 hardware cryptographic accelerator.
LPC5500 cipher hardware accelerator.
LPC5500 hash hardware accelerator.
LPC5500 public-key hardware accelerator.
LPC5500 true random number generator.
bool_t osCreateMutex(OsMutex *mutex)
Create a mutex object.
Mutex object.