1 /*
2 * Copyright (C) 2023 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
16 #include "ecc_key_util.h"
17 #include <securec.h>
18 #include "ecc_key_util_spi.h"
19 #include "config.h"
20 #include "ecc_common_param_spec_generator_openssl.h"
21 #include "key_utils.h"
22 #include "params_parser.h"
23 #include "log.h"
24 #include "memory.h"
25 #include "utils.h"
26
27 typedef HcfResult (*HcfEccCommParamsSpecCreateFunc)(HcfAsyKeyGenParams *, HcfEccCommParamsSpecSpi **);
28
29 typedef struct {
30 HcfAlgValue algo;
31
32 HcfEccCommParamsSpecCreateFunc createSpiFunc;
33 } HcfEccCommParamsSpecAbility;
34
35 static const HcfEccCommParamsSpecAbility ASY_KEY_GEN_ABILITY_SET[] = {
36 { HCF_ALG_ECC, HcfECCCommonParamSpecCreate },
37 };
38
FindAbility(HcfAsyKeyGenParams * params)39 static HcfEccCommParamsSpecCreateFunc FindAbility(HcfAsyKeyGenParams *params)
40 {
41 if (params == NULL) {
42 LOGE("params is null");
43 return NULL;
44 }
45 for (uint32_t i = 0; i < sizeof(ASY_KEY_GEN_ABILITY_SET) / sizeof(ASY_KEY_GEN_ABILITY_SET[0]); i++) {
46 if (ASY_KEY_GEN_ABILITY_SET[i].algo == params->algo) {
47 return ASY_KEY_GEN_ABILITY_SET[i].createSpiFunc;
48 }
49 }
50 LOGE("Algo not support! [Algo]: %d", params->algo);
51 return NULL;
52 }
53
54
HcfEccKeyUtilCreate(const char * algName,HcfEccCommParamsSpec ** returnCommonParamSpec)55 HcfResult HcfEccKeyUtilCreate(const char *algName, HcfEccCommParamsSpec **returnCommonParamSpec)
56 {
57 if ((!IsStrValid(algName, HCF_MAX_ALGO_NAME_LEN)) || (returnCommonParamSpec == NULL)) {
58 LOGE("Failed to parse params!");
59 return HCF_INVALID_PARAMS;
60 }
61 HcfAsyKeyGenParams params = { 0 };
62 if (ParseCurveNameToParams(algName, ¶ms) != HCF_SUCCESS) {
63 LOGE("Failed to parse params!");
64 return HCF_INVALID_PARAMS;
65 }
66
67 HcfEccCommParamsSpecCreateFunc createSpiFunc = FindAbility(¶ms);
68 if (createSpiFunc == NULL) {
69 LOGE("Failed to find ability!");
70 return HCF_NOT_SUPPORT;
71 }
72
73 HcfEccCommParamsSpecSpi *spiInstance = NULL;
74 HcfResult ret = createSpiFunc(¶ms, &spiInstance);
75 if (ret != HCF_SUCCESS) {
76 LOGE("Failed to create spi object!");
77 return ret;
78 }
79 if (CreateEccCommonSpecImpl(&(spiInstance->paramsSpec), returnCommonParamSpec) != HCF_SUCCESS) {
80 LOGE("Failed to create spi object!");
81 FreeEccCommParamsSpec(&(spiInstance->paramsSpec));
82 HcfFree(spiInstance);
83 return ret;
84 }
85 FreeEccCommParamsSpec(&(spiInstance->paramsSpec));
86 HcfFree(spiInstance);
87 return HCF_SUCCESS;
88 }