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 #ifndef OHOS_DM_CRYPTO_H 17 #define OHOS_DM_CRYPTO_H 18 #include <string> 19 #if !(defined(__LITEOS_M__) || defined(LITE_DEVICE)) 20 #include "dm_kv_info.h" 21 #endif 22 23 #ifndef DM_EXPORT 24 #define DM_EXPORT __attribute__ ((visibility ("default"))) 25 #endif // DM_EXPORT 26 27 28 namespace OHOS { 29 namespace DistributedHardware { 30 class Crypto { 31 public: 32 DM_EXPORT static void DmGenerateStrHash(const void *data, size_t dataSize, 33 unsigned char *outBuf, uint32_t outBufLen, uint32_t startIndex); 34 DM_EXPORT static std::string Sha256(const std::string &text, bool isUpper = false); 35 DM_EXPORT static std::string Sha256(const void *data, size_t size, 36 bool isUpper = false); 37 DM_EXPORT static int32_t ConvertHexStringToBytes(unsigned char *outBuf, 38 uint32_t outBufLen, const char *inBuf, uint32_t inLen); 39 // follow the dsoftbus udid hash policy, use the first 8 bytes of full udid hash, 40 // after convert to string, it it 16 bytes. 41 DM_EXPORT static int32_t GetUdidHash(const std::string &udid, 42 unsigned char *udidHash); 43 DM_EXPORT static std::string GetUdidHash(const std::string &udid); 44 // use the first 16 bytes of full tokenId hash 45 // after convert to string, it it 32 bytes. 46 DM_EXPORT static std::string GetTokenIdHash(const std::string &tokenId); 47 DM_EXPORT static std::string GetGroupIdHash(const std::string &groupId); 48 static int32_t GetSecRandom(uint8_t *out, size_t outLen); 49 static std::string GetSecSalt(); 50 static std::string GetHashWithSalt(const std::string &text, const std::string &salt); 51 // follow the dsoftbus accountid hash policy, use the first 3 bytes of full accountid hash, 52 // after convert to string, it it 6 bytes. 53 DM_EXPORT static int32_t GetAccountIdHash(const std::string &accountId, 54 unsigned char *accountIdHash); 55 // use the first 16 bytes of full accountId hash 56 // after convert to string, it it 32 bytes. 57 DM_EXPORT static std::string GetAccountIdHash16(const std::string &accountId); 58 DM_EXPORT static int32_t ConvertBytesToHexString(char *outBuf, uint32_t outBufLen, 59 const unsigned char *inBuf, uint32_t inLen); 60 #if !(defined(__LITEOS_M__) || defined(LITE_DEVICE)) 61 DM_EXPORT static int32_t ConvertUdidHashToAnoyAndSave(const std::string &appId, 62 const std::string &udidHash, DmKVValue &kvValue); 63 DM_EXPORT static int32_t ConvertUdidHashToAnoyDeviceId(const std::string &appId, 64 const std::string &udidHash, DmKVValue &kvValue); 65 static int32_t GetAnoyDeviceInfo(const std::string &appId, const std::string &udidHash, DmKVValue &kvValue); 66 static int32_t ConvertUdidHashToAnoyGenerate(const std::string &appId, const std::string &udidHash, 67 DmKVValue &kvValue); 68 #endif 69 }; 70 } // namespace DistributedHardware 71 } // namespace OHOS 72 #endif // OHOS_DM_CRYPTO_H 73