1# crypto_common.h
2
3
4## Overview
5
6Provides common APIs for cryptographic operations.
7
8**Library**: libohcrypto.z.so
9
10**System capability**: SystemCapability.Security.CryptoFramework
11
12**Since**: 12
13
14**Related module**: [CryptoCommonApi](_crypto_common_api.md)
15
16
17## Summary
18
19
20### Structs
21
22| Name | Description |
23| -------- | -------- |
24| struct  [Crypto_DataBlob](_crypto___data_blob.md) | Defines the data used for encryption and decryption. |
25
26
27### Types
28
29| Name | Description |
30| -------- | -------- |
31| typedef struct [Crypto_DataBlob](_crypto___data_blob.md) [Crypto_DataBlob](_crypto_common_api.md#crypto_datablob) | Defines a struct for the data used for encryption and decryption. |
32
33
34### Enums
35
36| Name | Description |
37| -------- | -------- |
38| [OH_Crypto_ErrCode](_crypto_common_api.md#oh_crypto_errcode) {<br>CRYPTO_SUCCESS = 0, CRYPTO_INVALID_PARAMS = 401,<br>CRYPTO_NOT_SUPPORT = 801, CRYPTO_MEMORY_ERROR = 17620001,<br>CRYPTO_OPERTION_ERROR = 17630001<br>} | Enumerates the encryption and decryption error codes. |
39| [Crypto_CipherMode](_crypto_common_api.md#crypto_ciphermode) {<br>CRYPTO_ENCRYPT_MODE = 0,<br>CRYPTO_DECRYPT_MODE = 1<br>} | Enumerates the cryptographic operation types. |
40
41
42### Functions
43
44| Name | Description |
45| -------- | -------- |
46| void [OH_Crypto_FreeDataBlob](_crypto_common_api.md#oh_crypto_freedatablob) ([Crypto_DataBlob](_crypto___data_blob.md) \*dataBlob) | Releases a **dataBlob** instance. |
47