1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #include "hksimportkey_fuzzer.h"
16
17 #include <securec.h>
18
19 #include "hks_api.h"
20 #include "hks_mem.h"
21 #include "hks_param.h"
22 #include "hks_type.h"
23
24 #include "hks_fuzz_util.h"
25
26 constexpr int ALIAS_SIZE = 10;
27
28 namespace OHOS {
29 namespace Security {
30 namespace Hks {
31
DoSomethingInterestingWithMyAPI(uint8_t * data,size_t size)32 int DoSomethingInterestingWithMyAPI(uint8_t *data, size_t size)
33 {
34 if (data == nullptr || size <= (ALIAS_SIZE + sizeof(uint32_t))) {
35 return -1;
36 }
37
38 struct HksBlob keyAlias = { ALIAS_SIZE, ReadData<uint8_t *>(data, size, ALIAS_SIZE) };
39 uint32_t pubKeySize = *ReadData<uint32_t *>(data, size, sizeof(uint32_t));
40 if (size < pubKeySize) {
41 return -1;
42 }
43 struct HksBlob pubKey = { pubKeySize, ReadData<uint8_t *>(data, size, pubKeySize) };
44
45 WrapParamSet ps = ConstructHksParamSetFromFuzz(data, size);
46
47 [[maybe_unused]] int ret = HksImportKey(&keyAlias, ps.s, &pubKey);
48
49 return 0;
50 }
51 }}}
52
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)53 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
54 {
55 std::vector<uint8_t> v(data, data + size);
56 return OHOS::Security::Hks::DoSomethingInterestingWithMyAPI(v.data(), v.size());
57 }
58
59