1# 查询密钥别名集(C/C++) 2 3 4HUKS提供了接口供应用查询密钥别名集。 5 6## 在CMake脚本中链接相关动态库 7```txt 8 target_link_libraries(entry PUBLIC libhuks_ndk.z.so) 9``` 10 11## 开发步骤 12 131. 初始化密钥属性集。用于查询指定密钥别名集TAG，TAG仅支持[HUKS_TAG_AUTH_STORAGE_LEVEL](../../reference/apis-universal-keystore-kit/_huks_type_api.md#oh_huks_authstoragelevel)。 14 152. 调用接口[OH_Huks_ListAliases](../../reference/apis-universal-keystore-kit/_huks_key_api.md#oh_huks_listaliases)，查询密钥别名集。 16 17 ```c++ 18/* 以下查询密钥别名集为例 */ 19#include "huks/native_huks_api.h" 20#include "huks/native_huks_param.h" 21#include <string.h> 22OH_Huks_Result InitParamSet( 23 struct OH_Huks_ParamSet **paramSet, 24 const struct OH_Huks_Param *params, 25 uint32_t paramCount) 26{ 27 OH_Huks_Result ret = OH_Huks_InitParamSet(paramSet); 28 if (ret.errorCode != OH_HUKS_SUCCESS) { 29 return ret; 30 } 31 ret = OH_Huks_AddParams(*paramSet, params, paramCount); 32 if (ret.errorCode != OH_HUKS_SUCCESS) { 33 OH_Huks_FreeParamSet(paramSet); 34 return ret; 35 } 36 ret = OH_Huks_BuildParamSet(paramSet); 37 if (ret.errorCode != OH_HUKS_SUCCESS) { 38 OH_Huks_FreeParamSet(paramSet); 39 return ret; 40 } 41 return ret; 42} 43struct OH_Huks_Param g_testQueryParam[] = { 44 { 45 .tag = OH_HUKS_TAG_AUTH_STORAGE_LEVEL, 46 .uint32Param = OH_HUKS_AUTH_STORAGE_LEVEL_DE 47 }, 48}; 49static napi_value ListAliases(napi_env env, napi_callback_info info) 50{ 51 struct OH_Huks_ParamSet *testQueryParamSet = nullptr; 52 struct OH_Huks_KeyAliasSet *outData = nullptr; 53 struct OH_Huks_Result ohResult; 54 do { 55 /* 1.初始化密钥属性集 */ 56 ohResult = InitParamSet(&testQueryParamSet, g_testQueryParam, 57 sizeof(g_testQueryParam) / sizeof(OH_Huks_Param)); 58 if (ohResult.errorCode != OH_HUKS_SUCCESS) { 59 break; 60 } 61 /* 2.查询密钥别名集 */ 62 ohResult = OH_Huks_ListAliases(testQueryParamSet, &outData); 63 } while (0); 64 65 OH_Huks_FreeParamSet(&testQueryParamSet); 66 OH_Huks_FreeKeyAliasSet(outData); 67 napi_value ret; 68 napi_create_int32(env, ohResult.errorCode, &ret); 69 return ret; 70} 71```