1 /*
2 * Copyright (c) 2021, 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 includes implementation for Crypto Internal Trusted Storage (ITS) APIs.
32 */
33
34 #include "crypto/storage.hpp"
35
36 #include "common/debug.hpp"
37
38 namespace ot {
39 namespace Crypto {
40
41 #if OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE
42
ExtractKey(uint8_t * aKeyBuffer,uint16_t & aKeyLength) const43 Error Key::ExtractKey(uint8_t *aKeyBuffer, uint16_t &aKeyLength) const
44 {
45 Error error = kErrorNone;
46 size_t readKeyLength;
47
48 OT_ASSERT(IsKeyRef());
49
50 SuccessOrAssert(Crypto::Storage::ExportKey(GetKeyRef(), aKeyBuffer, aKeyLength, readKeyLength));
51
52 VerifyOrExit(readKeyLength <= aKeyLength, error = kErrorNoBufs);
53
54 aKeyLength = static_cast<uint16_t>(readKeyLength);
55
56 exit:
57 return error;
58 }
59
DestroyPersistentKeys(void)60 void Storage::KeyRefManager::DestroyPersistentKeys(void)
61 {
62 DestroyKey(KeyRefFor(kNetworkKey));
63 DestroyKey(KeyRefFor(kPskc));
64 DestroyKey(KeyRefFor(kActiveDatasetNetworkKey));
65 DestroyKey(KeyRefFor(kActiveDatasetPskc));
66 DestroyKey(KeyRefFor(kPendingDatasetNetworkKey));
67 DestroyKey(KeyRefFor(kPendingDatasetPskc));
68 DestroyKey(KeyRefFor(kEcdsa));
69 }
70
71 #endif // OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE
72
LiteralKey(const Key & aKey)73 LiteralKey::LiteralKey(const Key &aKey)
74 : mKey(aKey.GetBytes())
75 , mLength(aKey.GetLength())
76 {
77 #if OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE
78 if (aKey.IsKeyRef())
79 {
80 mKey = mBuffer;
81 mLength = sizeof(mBuffer);
82 SuccessOrAssert(aKey.ExtractKey(mBuffer, mLength));
83 }
84 #endif
85 }
86
87 } // namespace Crypto
88 } // namespace ot
89
