1 /*
2 * Copyright (c) 2017-2022, Texas Instruments Incorporated
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * * Neither the name of Texas Instruments Incorporated nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32 /*
33 * ======== ECDH.c ========
34 *
35 * This file contains default values for the ECDH_Params struct
36 *
37 */
38
39 #include <stdlib.h>
40 #include <string.h>
41
42 #include <ti/drivers/dpl/DebugP.h>
43 #include <ti/drivers/dpl/SemaphoreP.h>
44 #include <ti/drivers/ECDH.h>
45
46 /* Extern globals */
47 extern const ECDH_Config ECDH_config[];
48 extern const uint_least8_t ECDH_count;
49
50 const ECDH_Params ECDH_defaultParams = {
51 .returnBehavior = ECDH_RETURN_BEHAVIOR_BLOCKING,
52 .callbackFxn = NULL,
53 .timeout = SemaphoreP_WAIT_FOREVER,
54 .custom = NULL,
55 };
56
57 /*
58 * ======== ECDH_open ========
59 */
ECDH_open(uint_least8_t index,const ECDH_Params * params)60 __attribute__((weak)) ECDH_Handle ECDH_open(uint_least8_t index, const ECDH_Params *params)
61 {
62 DebugP_assert(index < ECDH_count);
63
64 ECDH_Config *config = (ECDH_Config *)&ECDH_config[index];
65 return ECDH_construct(config, params);
66 }
67
68 /*
69 * ======== ECDH_OperationGeneratePublicKey_init ========
70 */
ECDH_OperationGeneratePublicKey_init(ECDH_OperationGeneratePublicKey * operation)71 void ECDH_OperationGeneratePublicKey_init(ECDH_OperationGeneratePublicKey *operation)
72 {
73 operation->curve = NULL;
74 operation->myPrivateKey = NULL;
75 operation->myPublicKey = NULL;
76 /* Default key material endianness is big endian*/
77 operation->keyMaterialEndianness = ECDH_BIG_ENDIAN_KEY;
78 }
79 /*
80 * ======== ECDH_OperationComputeSharedSecret_init ========
81 */
ECDH_OperationComputeSharedSecret_init(ECDH_OperationComputeSharedSecret * operation)82 void ECDH_OperationComputeSharedSecret_init(ECDH_OperationComputeSharedSecret *operation)
83 {
84 operation->curve = NULL;
85 operation->myPrivateKey = NULL;
86 operation->theirPublicKey = NULL;
87 operation->sharedSecret = NULL;
88 /* Default key material endianness is big endian*/
89 operation->keyMaterialEndianness = ECDH_BIG_ENDIAN_KEY;
90 }
91
