1 /* 2 * Copyright (C) 2022-2024 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 ADAPTOR_ALGORITHM_H 17 #define ADAPTOR_ALGORITHM_H 18 19 #include <stdbool.h> 20 #include <stdint.h> 21 #include "buffer.h" 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif // __cplusplus 26 27 #define ED25519_FIX_SIGN_BUFFER_SIZE 64 28 #define ED25519_FIX_PUBKEY_BUFFER_SIZE 32 29 #define SECRET_SIZE 32 30 #define HKDF_SALT_SIZE 32 31 #define HKDF_KEY_SIZE 32 32 #define AES_GCM_256_KEY_SIZE 32 33 #define AES_GCM_256_IV_SIZE 12 34 #define AES_GCM_256_TAG_SIZE 16 35 #define AES_GCM_256_AAD_MAX_SIZE 32 36 #define CIPHER_INFO_MAX_SIZE 1024 37 #define SHA256_DIGEST_SIZE 32 38 39 typedef struct KeyPair { 40 Buffer *pubKey; 41 Buffer *priKey; 42 } KeyPair; 43 44 typedef struct AesGcmParam { 45 Buffer *aad; 46 Buffer *iv; 47 Buffer *key; 48 } AesGcmParam; 49 50 bool IsEd25519KeyPairValid(const KeyPair *keyPair); 51 void DestroyKeyPair(KeyPair *keyPair); 52 KeyPair *GenerateEd25519KeyPair(void); 53 int32_t Ed25519Sign(const KeyPair *keyPair, const Buffer *data, Buffer **sign); 54 int32_t Ed25519Verify(const Buffer *pubKey, const Buffer *data, const Buffer *sign); 55 56 int32_t AesGcm256Encrypt(const Buffer *plaintext, const AesGcmParam *param, Buffer **ciphertext, Buffer **tag); 57 int32_t AesGcm256Decrypt(const Buffer *ciphertext, const AesGcmParam *param, const Buffer *tag, Buffer **plaintext); 58 59 Buffer *DeriveDeviceKey(const Buffer *pinData, const Buffer *secret); 60 Buffer *Hkdf(const Buffer *salt, const Buffer *rootKey); 61 Buffer *Sha256Adaptor(const Buffer *data); 62 63 int32_t HmacSha256(const Buffer *hmacKey, const Buffer *data, Buffer **hmac); 64 int32_t HmacSha512(const Buffer *hmacKey, const Buffer *data, Buffer **hmac); 65 66 int32_t SecureRandom(uint8_t *buffer, uint32_t size); 67 68 /* This is for example only, distribute key should be distributed in trusted environment between devices. */ 69 int32_t GetDistributeKey(const Buffer *peerUdid, const Buffer *salt, Buffer **key); 70 71 #ifdef __cplusplus 72 } 73 #endif // __cplusplus 74 #endif // ADAPTOR_ALGORITHM_H 75 76