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 #define HKDF_BYTES_LEN 32 30 31 #define TAG_LEN 16 32 #define SHORT_TAG_LEN 8 33 #define OVERHEAD_LEN (GCM_IV_LEN + TAG_LEN) 34 35 #define GCM_KEY_BITS_LEN_128 128 36 #define GCM_KEY_BITS_LEN_256 256 37 #define KEY_BITS_UNIT 8 38 39 #define BLE_BROADCAST_IV_LEN 16 40 41 #ifdef __cplusplus 42 #if __cplusplus 43 extern "C" { 44 #endif 45 #endif 46 typedef struct { 47 unsigned char *aad; 48 uint32_t aadLen; 49 const unsigned char *input; 50 uint32_t inputLen; 51 unsigned char **output; 52 uint32_t *outputLen; 53 } GcmInputParams; 54 55 typedef struct { 56 uint32_t keyLen; 57 unsigned char key[SESSION_KEY_LENGTH]; 58 unsigned char iv[GCM_IV_LEN]; 59 } AesGcmCipherKey; 60 61 typedef struct { 62 uint32_t keyLen; 63 unsigned char key[SHORT_SESSION_KEY_LENGTH]; 64 unsigned char iv[GCM_IV_LEN]; 65 } AesGcm128CipherKey; 66 67 typedef struct { 68 uint32_t keyLen; 69 unsigned char key[SESSION_KEY_LENGTH]; 70 unsigned char iv[BLE_BROADCAST_IV_LEN]; 71 } AesCtrCipherKey; 72 73 int32_t SoftBusBase64Encode(unsigned char *dst, size_t dlen, 74 size_t *olen, const unsigned char *src, size_t slen); 75 76 int32_t SoftBusBase64Decode(unsigned char *dst, size_t dlen, 77 size_t *olen, const unsigned char *src, size_t slen); 78 79 int32_t SoftBusGenerateStrHash(const unsigned char *str, uint32_t len, unsigned char *hash); 80 81 int32_t SoftBusGenerateSessionKey(char *key, uint32_t len); 82 83 int32_t SoftBusGenerateRandomArray(unsigned char *randStr, uint32_t len); 84 85 int32_t SoftBusEncryptData(AesGcmCipherKey *key, const unsigned char *input, uint32_t inLen, 86 unsigned char *encryptData, uint32_t *encryptLen); 87 88 int32_t SoftBusEncryptDataWithSeq(AesGcmCipherKey *cipherKey, const unsigned char *input, uint32_t inLen, 89 unsigned char *encryptData, uint32_t *encryptLen, int32_t seqNum); 90 91 int32_t SoftBusDecryptData(AesGcmCipherKey *key, const unsigned char *input, uint32_t inLen, 92 unsigned char *decryptData, uint32_t *decryptLen); 93 94 int32_t SoftBusDecryptDataWithSeq(AesGcmCipherKey *cipherKey, const unsigned char *input, uint32_t inLen, 95 unsigned char *encryptData, uint32_t *encryptLen, int32_t seqNum); 96 97 uint32_t SoftBusCryptoRand(void); 98 99 int32_t SoftBusEncryptDataByCtr(AesCtrCipherKey *key, const unsigned char *input, uint32_t inLen, 100 unsigned char *encryptData, uint32_t *encryptLen); 101 102 int32_t SoftBusDecryptDataByCtr(AesCtrCipherKey *key, const unsigned char *input, uint32_t inLen, 103 unsigned char *decryptData, uint32_t *decryptLen); 104 105 int32_t SoftBusEncryptDataByGcm128(AesGcm128CipherKey *cipherKey, const unsigned char *input, uint32_t inLen, 106 unsigned char *encryptData, uint32_t *encryptLen); 107 108 int32_t SoftBusDecryptDataByGcm128(AesGcm128CipherKey *cipherKey, const unsigned char *input, uint32_t inLen, 109 unsigned char *decryptData, uint32_t *decryptLen); 110 111 int32_t SoftBusCalcHKDF(const uint8_t *inData, uint32_t inLen, uint8_t *outData, uint32_t outLen); 112 113 #endif 114 115 #ifdef __cplusplus 116 #if __cplusplus 117 } 118 #endif /* __cplusplus */ 119 #endif /* __cplusplus */ 120 #endif /* SOFTBUS_ADAPTER_CRYPTO_H */ 121