1 /*
2 * Copyright (c) 2023, The OpenThread Authors.
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 are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the copyright holder nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /**
30 * @file
31 * This file implements SHA-256.
32 */
33
34 #include "sha256.hpp"
35
36 namespace otbr {
37
Sha256(void)38 Sha256::Sha256(void)
39 {
40 otError error;
41
42 mContext.mContext = &mContextStorage;
43 mContext.mContextSize = sizeof(mContextStorage);
44
45 SuccessOrExit(error = otPlatCryptoSha256Init(&mContext));
46
47 exit:
48 if (error != OT_ERROR_NONE)
49 {
50 otbrLogErr("Error otPlatCryptoSha256Init: %s", otThreadErrorToString(error));
51 }
52 }
53
~Sha256(void)54 Sha256::~Sha256(void)
55 {
56 otError error;
57
58 SuccessOrExit(error = otPlatCryptoSha256Deinit(&mContext));
59
60 exit:
61 if (error != OT_ERROR_NONE)
62 {
63 otbrLogErr("Error otPlatCryptoSha256Deinit: %s", otThreadErrorToString(error));
64 }
65 }
66
Start(void)67 void Sha256::Start(void)
68 {
69 otError error;
70
71 SuccessOrExit(error = otPlatCryptoSha256Start(&mContext));
72
73 exit:
74 if (error != OT_ERROR_NONE)
75 {
76 otbrLogErr("Error otPlatCryptoSha256Start: %s", otThreadErrorToString(error));
77 }
78 }
79
Update(const void * aBuf,uint16_t aBufLength)80 void Sha256::Update(const void *aBuf, uint16_t aBufLength)
81 {
82 otError error;
83
84 SuccessOrExit(error = otPlatCryptoSha256Update(&mContext, aBuf, aBufLength));
85
86 exit:
87 if (error != OT_ERROR_NONE)
88 {
89 otbrLogErr("Error otPlatCryptoSha256Update: %s", otThreadErrorToString(error));
90 }
91 }
92
Finish(Hash & aHash)93 void Sha256::Finish(Hash &aHash)
94 {
95 otError error;
96
97 SuccessOrExit(error = otPlatCryptoSha256Finish(&mContext, aHash.m8, Hash::kSize));
98
99 exit:
100 if (error != OT_ERROR_NONE)
101 {
102 otbrLogErr("Error otPlatCryptoSha256Finish: %s", otThreadErrorToString(error));
103 }
104 }
105 } // namespace otbr
106