1 /* 2 * Copyright (c) 2021 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 SOFTBUS_ADAPTER_CRYPTO_H 17 #define SOFTBUS_ADAPTER_CRYPTO_H 18 19 #include <stdint.h> 20 21 #include "softbus_def.h" 22 23 #ifndef AES_GCM_H 24 #define AES_GCM_H 25 26 #define HUKS_AES_GCM_KEY_LEN 256 27 #define GCM_IV_LEN 12 28 #define AAD_LEN 16 29 30 #define TAG_LEN 16 31 #define OVERHEAD_LEN (GCM_IV_LEN + TAG_LEN) 32 33 #define GCM_KEY_BITS_LEN_128 128 34 #define GCM_KEY_BITS_LEN_256 256 35 #define KEY_BITS_UNIT 8 36 37 #define BLE_BROADCAST_IV_LEN 16 38 39 #ifdef __cplusplus 40 #if __cplusplus 41 extern "C" { 42 #endif 43 #endif 44 typedef struct { 45 unsigned char *aad; 46 uint32_t aadLen; 47 const unsigned char *input; 48 uint32_t inputLen; 49 unsigned char **output; 50 uint32_t *outputLen; 51 } GcmInputParams; 52 53 typedef struct { 54 uint32_t keyLen; 55 unsigned char key[SESSION_KEY_LENGTH]; 56 unsigned char iv[GCM_IV_LEN]; 57 } AesGcmCipherKey; 58 59 typedef struct { 60 uint32_t keyLen; 61 unsigned char key[SESSION_KEY_LENGTH]; 62 unsigned char iv[BLE_BROADCAST_IV_LEN]; 63 } AesCtrCipherKey; 64 65 int32_t SoftBusBase64Encode(unsigned char *dst, size_t dlen, 66 size_t *olen, const unsigned char *src, size_t slen); 67 68 int32_t SoftBusBase64Decode(unsigned char *dst, size_t dlen, 69 size_t *olen, const unsigned char *src, size_t slen); 70 71 int32_t SoftBusGenerateStrHash(const unsigned char *str, uint32_t len, unsigned char *hash); 72 73 int32_t SoftBusGenerateSessionKey(char *key, uint32_t len); 74 75 int32_t SoftBusGenerateRandomArray(unsigned char *randStr, uint32_t len); 76 77 int32_t SoftBusEncryptData(AesGcmCipherKey *key, const unsigned char *input, uint32_t inLen, 78 unsigned char *encryptData, uint32_t *encryptLen); 79 80 int32_t SoftBusEncryptDataWithSeq(AesGcmCipherKey *cipherKey, const unsigned char *input, uint32_t inLen, 81 unsigned char *encryptData, uint32_t *encryptLen, int32_t seqNum); 82 83 int32_t SoftBusDecryptData(AesGcmCipherKey *key, const unsigned char *input, uint32_t inLen, 84 unsigned char *decryptData, uint32_t *decryptLen); 85 86 int32_t SoftBusDecryptDataWithSeq(AesGcmCipherKey *cipherKey, const unsigned char *input, uint32_t inLen, 87 unsigned char *encryptData, uint32_t *encryptLen, int32_t seqNum); 88 89 uint32_t SoftBusCryptoRand(void); 90 91 int32_t SoftBusEncryptDataByCtr(AesCtrCipherKey *key, const unsigned char *input, uint32_t inLen, 92 unsigned char *encryptData, uint32_t *encryptLen); 93 94 int32_t SoftBusDecryptDataByCtr(AesCtrCipherKey *key, const unsigned char *input, uint32_t inLen, 95 unsigned char *decryptData, uint32_t *decryptLen); 96 97 #endif 98 99 #ifdef __cplusplus 100 #if __cplusplus 101 } 102 #endif /* __cplusplus */ 103 #endif /* __cplusplus */ 104 #endif /* SOFTBUS_ADAPTER_CRYPTO_H */ 105