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en/application-dev/reference/native-apis/_huks_type_api.md
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# HuksTypeApi # HuksTypeApi
## Overview
Defines the macros, enumerated values, data structures, and error codes used by OpenHarmony Universal KeyStore (HUKS) APIs.
\@syscap SystemCapability.Security.Huks
**Since:**
9
## Summary
### Files
| Name | Description |
| -------- | -------- |
| [native_huks_type.h](native__huks__type_8h.md) | Defines the enumerated variables, structures, and macros used in the HUKS APIs. <br>File to Include: <huks/native_huks/native_huks_type.h> |
### Structs
| Name | Description |
| -------- | -------- |
| [OH_Huks_Result](_o_h___huks___result.md) | Defines the return data, including the result code and message. |
| [OH_Huks_Blob](_o_h___huks___blob.md) | Defines the structure for storing data. |
| [OH_Huks_Param](_o_h___huks___param.md) | Defines the parameter structure in a parameter set. |
| [OH_Huks_ParamSet](_o_h___huks___param_set.md) | Defines the structure of the parameter set. |
| [OH_Huks_CertChain](_o_h___huks___cert_chain.md) | Defines the structure of the certificate chain. |
| [OH_Huks_KeyInfo](_o_h___huks___key_info.md) | Defines the key information structure. |
| [OH_Huks_PubKeyInfo](_o_h___huks___pub_key_info.md) | Defines the structure of a public key. |
| [OH_Huks_KeyMaterialRsa](_o_h___huks___key_material_rsa.md) | Defines the structure of an RSA key. |
| [OH_Huks_KeyMaterialEcc](_o_h___huks___key_material_ecc.md) | Defines the structure of an ECC key. |
| [OH_Huks_KeyMaterialDsa](_o_h___huks___key_material_dsa.md) | Defines the structure of a DSA key. |
| [OH_Huks_KeyMaterialDh](_o_h___huks___key_material_dh.md) | Defines the structure of a DH key. |
| [OH_Huks_KeyMaterial25519](_o_h___huks___key_material25519.md) | Defines the structure of a 25519 key. |
### Macros
| Name | Value |
| -------- | -------- |
| **OH_HUKS_AE_TAG_LEN** | 16 |
| **OH_HUKS_BITS_PER_BYTE** | 8 |
| **OH_HUKS_MAX_KEY_SIZE** | 2048 |
| **OH_HUKS_AE_NONCE_LEN** | 12|
| **OH_HUKS_MAX_KEY_ALIAS_LEN** | 64 |
| **OH_HUKS_MAX_PROCESS_NAME_LEN** | 50 |
| **OH_HUKS_MAX_RANDOM_LEN** | 1024 |
| **OH_HUKS_SIGNATURE_MIN_SIZE** | 64 |
| **OH_HUKS_MAX_OUT_BLOB_SIZE** | (5 \* 1024 \* 1024) |
| **OH_HUKS_WRAPPED_FORMAT_MAX_SIZE** | (1024 \* 1024) |
| **OH_HUKS_IMPORT_WRAPPED_KEY_TOTAL_BLOBS** | 10 |
| **TOKEN_CHALLENGE_LEN** | 32 |
| **SHA256_SIGN_LEN** | 32 |
| **TOKEN_SIZE** | 32|
| **MAX_AUTH_TIMEOUT_SECOND** | 60 |
| **SECURE_SIGN_VERSION** | 0x01000001 |
### Enums
| Name | Description |
| -------- | -------- |
| [OH_Huks_KeyPurpose](#oh_huks_keypurpose) {<br/>OH_HUKS_KEY_PURPOSE_ENCRYPT = 1, OH_HUKS_KEY_PURPOSE_DECRYPT = 2, OH_HUKS_KEY_PURPOSE_SIGN = 4, OH_HUKS_KEY_PURPOSE_VERIFY = 8,<br/>OH_HUKS_KEY_PURPOSE_DERIVE = 16, OH_HUKS_KEY_PURPOSE_WRAP = 32, OH_HUKS_KEY_PURPOSE_UNWRAP = 64, OH_HUKS_KEY_PURPOSE_MAC = 128,<br/>OH_HUKS_KEY_PURPOSE_AGREE = 256<br/>} | Enumerates the key purposes. |
| [OH_Huks_KeyDigest](#oh_huks_keydigest) {<br/>OH_HUKS_DIGEST_NONE = 0, OH_HUKS_DIGEST_MD5 = 1, OH_HUKS_DIGEST_SM3 = 2, OH_HUKS_DIGEST_SHA1 = 10,<br/>OH_HUKS_DIGEST_SHA224 = 11, OH_HUKS_DIGEST_SHA256 = 12, OH_HUKS_DIGEST_SHA384 = 13, OH_HUKS_DIGEST_SHA512 = 14<br/>} | Enumerates the digest algorithms. |
| [OH_Huks_KeyPadding](#oh_huks_keypadding) {<br/>OH_HUKS_PADDING_NONE = 0, OH_HUKS_PADDING_OAEP = 1, OH_HUKS_PADDING_PSS = 2, OH_HUKS_PADDING_PKCS1_V1_5 = 3,<br/>OH_HUKS_PADDING_PKCS5 = 4, OH_HUKS_PADDING_PKCS7 = 5<br/>} | Enumerates the padding algorithms. |
| [OH_Huks_CipherMode](#oh_huks_ciphermode) {<br/>OH_HUKS_MODE_ECB = 1, OH_HUKS_MODE_CBC = 2, OH_HUKS_MODE_CTR = 3, OH_HUKS_MODE_OFB = 4,<br/>OH_HUKS_MODE_CCM = 31, OH_HUKS_MODE_GCM = 32<br/>} | Enumerates the cipher modes. |
| [OH_Huks_KeySize](#oh_huks_keysize) {<br/>OH_HUKS_RSA_KEY_SIZE_512 = 512, OH_HUKS_RSA_KEY_SIZE_768 = 768, OH_HUKS_RSA_KEY_SIZE_1024 = 1024, OH_HUKS_RSA_KEY_SIZE_2048 = 2048,<br/>OH_HUKS_RSA_KEY_SIZE_3072 = 3072, OH_HUKS_RSA_KEY_SIZE_4096 = 4096, OH_HUKS_ECC_KEY_SIZE_224 = 224, OH_HUKS_ECC_KEY_SIZE_256 = 256,<br/>OH_HUKS_ECC_KEY_SIZE_384 = 384, OH_HUKS_ECC_KEY_SIZE_521 = 521, OH_HUKS_AES_KEY_SIZE_128 = 128, OH_HUKS_AES_KEY_SIZE_192 = 192,<br/>OH_HUKS_AES_KEY_SIZE_256 = 256, OH_HUKS_AES_KEY_SIZE_512 = 512, OH_HUKS_CURVE25519_KEY_SIZE_256 = 256, OH_HUKS_DH_KEY_SIZE_2048 = 2048,<br/>OH_HUKS_DH_KEY_SIZE_3072 = 3072, OH_HUKS_DH_KEY_SIZE_4096 = 4096, OH_HUKS_SM2_KEY_SIZE_256 = 256, OH_HUKS_SM4_KEY_SIZE_128 = 128<br/>} | Enumerates the key sizes. |
| [OH_Huks_KeyAlg](#oh_huks_keyalg) {<br/>OH_HUKS_ALG_RSA = 1, OH_HUKS_ALG_ECC = 2, OH_HUKS_ALG_DSA = 3, OH_HUKS_ALG_AES = 20,<br/>OH_HUKS_ALG_HMAC = 50, OH_HUKS_ALG_HKDF = 51, OH_HUKS_ALG_PBKDF2 = 52, OH_HUKS_ALG_ECDH = 100,<br/>OH_HUKS_ALG_X25519 = 101, OH_HUKS_ALG_ED25519 = 102, OH_HUKS_ALG_DH = 103, OH_HUKS_ALG_SM2 = 150,<br/>OH_HUKS_ALG_SM3 = 151, OH_HUKS_ALG_SM4 = 152<br/>} | Enumerates the key algorithms. |
| [OH_Huks_AlgSuite](#oh_huks_algsuite) { OH_HUKS_UNWRAP_SUITE_X25519_AES_256_GCM_NOPADDING = 1, OH_HUKS_UNWRAP_SUITE_ECDH_AES_256_GCM_NOPADDING = 2 } | Enumerates the algorithm suites required for ciphertext imports. |
| [OH_Huks_KeyGenerateType](#oh_huks_keygeneratetype) { OH_HUKS_KEY_GENERATE_TYPE_DEFAULT = 0, OH_HUKS_KEY_GENERATE_TYPE_DERIVE = 1, OH_HUKS_KEY_GENERATE_TYPE_AGREE = 2 } | Enumerates the key generation types. |
| [OH_Huks_KeyFlag](#oh_huks_keyflag) { OH_HUKS_KEY_FLAG_IMPORT_KEY = 1, OH_HUKS_KEY_FLAG_GENERATE_KEY = 2, OH_HUKS_KEY_FLAG_AGREE_KEY = 3, OH_HUKS_KEY_FLAG_DERIVE_KEY = 4 } | Enumerates the key generation modes. |
| [OH_Huks_KeyStorageType](#oh_huks_keystoragetype) { OH_HUKS_STORAGE_TEMP = 0, OH_HUKS_STORAGE_PERSISTENT = 1 } | Enumerates the key storage modes. |
| [OH_Huks_ImportKeyType](#oh_huks_importkeytype) { OH_HUKS_KEY_TYPE_PUBLIC_KEY = 0, OH_HUKS_KEY_TYPE_PRIVATE_KEY = 1, OH_HUKS_KEY_TYPE_KEY_PAIR = 2 } | Enumerates the types of keys to import. By default, a public key is imported. This field is not required when a symmetric key is imported. |
| [OH_Huks_ErrCode](#oh_huks_errcode) {<br/>OH_HUKS_SUCCESS = 0, OH_HUKS_ERR_CODE_PERMISSION_FAIL = 201, OH_HUKS_ERR_CODE_ILLEGAL_ARGUMENT = 401, OH_HUKS_ERR_CODE_NOT_SUPPORTED_API = 801,<br/>OH_HUKS_ERR_CODE_FEATURE_NOT_SUPPORTED = 12000001, OH_HUKS_ERR_CODE_MISSING_CRYPTO_ALG_ARGUMENT = 12000002, OH_HUKS_ERR_CODE_INVALID_CRYPTO_ALG_ARGUMENT = 12000003, OH_HUKS_ERR_CODE_FILE_OPERATION_FAIL = 12000004,<br/>OH_HUKS_ERR_CODE_COMMUNICATION_FAIL = 12000005, OH_HUKS_ERR_CODE_CRYPTO_FAIL = 12000006, OH_HUKS_ERR_CODE_KEY_AUTH_PERMANENTLY_INVALIDATED = 12000007, OH_HUKS_ERR_CODE_KEY_AUTH_VERIFY_FAILED = 12000008,<br/>OH_HUKS_ERR_CODE_KEY_AUTH_TIME_OUT = 12000009, OH_HUKS_ERR_CODE_SESSION_LIMIT = 12000010, OH_HUKS_ERR_CODE_ITEM_NOT_EXIST = 12000011, OH_HUKS_ERR_CODE_INTERNAL_ERROR = 12000012,<br/>OH_HUKS_ERR_CODE_CREDENTIAL_NOT_EXIST = 12000013<br/>} | Enumerates the error codes. |
| [OH_Huks_TagType](#oh_huks_tagtype) {<br/>OH_HUKS_TAG_TYPE_INVALID = 0 &lt;&lt; 28, OH_HUKS_TAG_TYPE_INT = 1 &lt;&lt; 28, OH_HUKS_TAG_TYPE_UINT = 2 &lt;&lt; 28, OH_HUKS_TAG_TYPE_ULONG = 3 &lt;&lt; 28,<br/>OH_HUKS_TAG_TYPE_BOOL = 4 &lt;&lt; 28, OH_HUKS_TAG_TYPE_BYTES = 5 &lt;&lt; 28<br/>} | Enumerates the tag types. |
| [OH_Huks_UserAuthType](#oh_huks_userauthtype) { OH_HUKS_USER_AUTH_TYPE_FINGERPRINT = 1 &lt;&lt; 0, OH_HUKS_USER_AUTH_TYPE_FACE = 1 &lt;&lt; 1, OH_HUKS_USER_AUTH_TYPE_PIN = 1 &lt;&lt; 2 } | Enumerates the user authentication types. |
| [OH_Huks_AuthAccessType](#oh_huks_authaccesstype) { OH_HUKS_AUTH_ACCESS_INVALID_CLEAR_PASSWORD = 1 &lt;&lt; 0, OH_HUKS_AUTH_ACCESS_INVALID_NEW_BIO_ENROLL = 1 &lt;&lt; 1 } | Enumerates the access control types. |
| [OH_Huks_ChallengeType](#oh_huks_challengetype) { OH_HUKS_CHALLENGE_TYPE_NORMAL = 0, OH_HUKS_CHALLENGE_TYPE_CUSTOM = 1, OH_HUKS_CHALLENGE_TYPE_NONE = 2 } | Enumerates the types of the challenges generated when a key is used. |
| [OH_Huks_ChallengePosition](#oh_huks_challengeposition) { OH_HUKS_CHALLENGE_POS_0 = 0, OH_HUKS_CHALLENGE_POS_1, OH_HUKS_CHALLENGE_POS_2, OH_HUKS_CHALLENGE_POS_3 } | Enumerates the positions of the 8-byte valid value in a custom challenge generated. |
| [OH_Huks_SecureSignType](#oh_huks_securesigntype) { OH_HUKS_SECURE_SIGN_WITH_AUTHINFO = 1 } | Enumerates the signature types of the keys generated or imported. |
| [OH_Huks_Tag](#oh_huks_tag) {<br/> OH_HUKS_TAG_ALGORITHM = OH_HUKS_TAG_TYPE_UINT \| 1, OH_HUKS_TAG_PURPOSE = OH_HUKS_TAG_TYPE_UINT \| 2, OH_HUKS_TAG_KEY_SIZE = OH_HUKS_TAG_TYPE_UINT \| 3,<br/>OH_HUKS_TAG_DIGEST = OH_HUKS_TAG_TYPE_UINT \| 4, OH_HUKS_TAG_PADDING = OH_HUKS_TAG_TYPE_UINT \| 5, OH_HUKS_TAG_BLOCK_MODE = OH_HUKS_TAG_TYPE_UINT \| 6, OH_HUKS_TAG_KEY_TYPE = OH_HUKS_TAG_TYPE_UINT \| 7,<br/>OH_HUKS_TAG_ASSOCIATED_DATA = OH_HUKS_TAG_TYPE_BYTES \| 8, OH_HUKS_TAG_NONCE = OH_HUKS_TAG_TYPE_BYTES \| 9, OH_HUKS_TAG_IV = OH_HUKS_TAG_TYPE_BYTES \| 10, OH_HUKS_TAG_INFO = OH_HUKS_TAG_TYPE_BYTES \| 11,<br/>OH_HUKS_TAG_SALT = OH_HUKS_TAG_TYPE_BYTES \| 12, OH_HUKS_TAG_ITERATION = OH_HUKS_TAG_TYPE_UINT \| 14, OH_HUKS_TAG_KEY_GENERATE_TYPE = OH_HUKS_TAG_TYPE_UINT \| 15,<br/> OH_HUKS_TAG_AGREE_ALG = OH_HUKS_TAG_TYPE_UINT \| 19,<br/>OH_HUKS_TAG_AGREE_PUBLIC_KEY_IS_KEY_ALIAS = OH_HUKS_TAG_TYPE_BOOL \| 20, OH_HUKS_TAG_AGREE_PRIVATE_KEY_ALIAS = OH_HUKS_TAG_TYPE_BYTES \| 21, OH_HUKS_TAG_AGREE_PUBLIC_KEY = OH_HUKS_TAG_TYPE_BYTES \| 22, OH_HUKS_TAG_KEY_ALIAS = OH_HUKS_TAG_TYPE_BYTES \| 23,<br/>OH_HUKS_TAG_DERIVE_KEY_SIZE = OH_HUKS_TAG_TYPE_UINT \| 24, OH_HUKS_TAG_IMPORT_KEY_TYPE = OH_HUKS_TAG_TYPE_UINT \| 25, OH_HUKS_TAG_UNWRAP_ALGORITHM_SUITE = OH_HUKS_TAG_TYPE_UINT \| 26, OH_HUKS_TAG_ALL_USERS = OH_HUKS_TAG_TYPE_BOOL \| 301,<br/>OH_HUKS_TAG_USER_ID = OH_HUKS_TAG_TYPE_UINT \| 302, OH_HUKS_TAG_NO_AUTH_REQUIRED = OH_HUKS_TAG_TYPE_BOOL \| 303, OH_HUKS_TAG_USER_AUTH_TYPE = OH_HUKS_TAG_TYPE_UINT \| 304, OH_HUKS_TAG_AUTH_TIMEOUT = OH_HUKS_TAG_TYPE_UINT \| 305,<br/>OH_HUKS_TAG_AUTH_TOKEN = OH_HUKS_TAG_TYPE_BYTES \| 306, OH_HUKS_TAG_KEY_AUTH_ACCESS_TYPE = OH_HUKS_TAG_TYPE_UINT \| 307, OH_HUKS_TAG_KEY_SECURE_SIGN_TYPE = OH_HUKS_TAG_TYPE_UINT \| 308, OH_HUKS_TAG_CHALLENGE_TYPE = OH_HUKS_TAG_TYPE_UINT \| 309,<br/>OH_HUKS_TAG_CHALLENGE_POS = OH_HUKS_TAG_TYPE_UINT \| 310, OH_HUKS_TAG_ATTESTATION_CHALLENGE = OH_HUKS_TAG_TYPE_BYTES \| 501, OH_HUKS_TAG_ATTESTATION_APPLICATION_ID = OH_HUKS_TAG_TYPE_BYTES \| 502, <br/>OH_HUKS_TAG_ATTESTATION_ID_ALIAS = OH_HUKS_TAG_TYPE_BYTES \| 511,<br/>OH_HUKS_TAG_ATTESTATION_ID_SEC_LEVEL_INFO = OH_HUKS_TAG_TYPE_BYTES \| 514, OH_HUKS_TAG_ATTESTATION_ID_VERSION_INFO = OH_HUKS_TAG_TYPE_BYTES \| 515,<br/>OH_HUKS_TAG_IS_KEY_ALIAS = OH_HUKS_TAG_TYPE_BOOL \| 1001, OH_HUKS_TAG_KEY_STORAGE_FLAG = OH_HUKS_TAG_TYPE_UINT \| 1002, OH_HUKS_TAG_IS_ALLOWED_WRAP = OH_HUKS_TAG_TYPE_BOOL \| 1003, OH_HUKS_TAG_KEY_WRAP_TYPE = OH_HUKS_TAG_TYPE_UINT \| 1004,<br/>OH_HUKS_TAG_KEY_AUTH_ID = OH_HUKS_TAG_TYPE_BYTES \| 1005, OH_HUKS_TAG_KEY_ROLE = OH_HUKS_TAG_TYPE_UINT \| 1006, OH_HUKS_TAG_KEY_FLAG = OH_HUKS_TAG_TYPE_UINT \| 1007, OH_HUKS_TAG_IS_ASYNCHRONIZED = OH_HUKS_TAG_TYPE_UINT \| 1008,<br/> OH_HUKS_TAG_KEY_DOMAIN = OH_HUKS_TAG_TYPE_UINT \| 1011, OH_HUKS_TAG_SYMMETRIC_KEY_DATA = OH_HUKS_TAG_TYPE_BYTES \| 20001,<br/>OH_HUKS_TAG_ASYMMETRIC_PUBLIC_KEY_DATA = OH_HUKS_TAG_TYPE_BYTES \| 20002, OH_HUKS_TAG_ASYMMETRIC_PRIVATE_KEY_DATA = OH_HUKS_TAG_TYPE_BYTES \| 20003<br/>} | Enumerates the tag values used in parameter sets. |
## Enum Description
### OH_Huks_AlgSuite
```
enum OH_Huks_AlgSuite
```
**Description**<br>
Enumerates the algorithm suites required for ciphertext imports.
| Name | Description |
| -------- | -------- |
| OH_HUKS_UNWRAP_SUITE_X25519_AES_256_GCM_NOPADDING | Key material format (Length-Value format), X25519 key agreement, and AES-256-GCM encryption and decryption. \| x25519_plain_pubkey_length (4 Byte) \| x25519_plain_pubkey \| agreekey_aad_length (4 Byte) \| agreekey_aad \| agreekey_nonce_length (4 Byte) \| agreekey_nonce \| agreekey_aead_tag_len(4 Byte) \| agreekey_aead_tag \| kek_enc_data_length (4 Byte) \| kek_enc_data \| kek_aad_length (4 Byte) \| kek_aad \| kek_nonce_length (4 Byte) \| kek_nonce \| kek_aead_tag_len (4 Byte) \| kek_aead_tag \| key_material_size_len (4 Byte) \| key_material_size \| key_mat_enc_length (4 Byte) \| key_mat_enc_data |
| OH_HUKS_UNWRAP_SUITE_ECDH_AES_256_GCM_NOPADDING | Key material format (Length-Value format), ECDH-p256 key agreement, and AES-256-GCM encryption and decryption. \| ECC_plain_pubkey_length (4 Byte) \| ECC_plain_pubkey \| agreekey_aad_length (4 Byte) \| agreekey_aad \| agreekey_nonce_length (4 Byte) \| agreekey_nonce \| agreekey_aead_tag_len(4 Byte) \| agreekey_aead_tag \| kek_enc_data_length (4 Byte) \| kek_enc_data \| kek_aad_length (4 Byte) \| kek_aad \| kek_nonce_length (4 Byte) \| kek_nonce \| kek_aead_tag_len (4 Byte) \| kek_aead_tag \| key_material_size_len (4 Byte) \| key_material_size \| key_mat_enc_length (4 Byte) \| key_mat_enc_data |
### OH_Huks_AuthAccessType
```
enum OH_Huks_AuthAccessType
```
**Description**<br>
Enumerates the access control types.
| Name | Description |
| -------- | -------- |
| OH_HUKS_AUTH_ACCESS_INVALID_CLEAR_PASSWORD | The key is invalid after the password is cleared. |
| OH_HUKS_AUTH_ACCESS_INVALID_NEW_BIO_ENROLL | The key is invalid after a new biometric feature is enrolled. |
### OH_Huks_ChallengePosition
```
enum OH_Huks_ChallengePosition
```
**Description**<br>
Enumerates the positions of the 8-byte valid value in a custom challenge generated.
| Name | Description |
| -------- | -------- |
| OH_HUKS_CHALLENGE_POS_0 | Bytes 0 to 7. |
| OH_HUKS_CHALLENGE_POS_1 | Bytes 8 to 15. |
| OH_HUKS_CHALLENGE_POS_2 | Bytes 16 to 23. |
| OH_HUKS_CHALLENGE_POS_3 | Bytes 24 to 31. |
### OH_Huks_ChallengeType
```
enum OH_Huks_ChallengeType
```
**Description**<br>
Enumerates the types of the challenges generated when a key is used.
**See**
[OH_Huks_ChallengePosition](#oh_huks_challengeposition)
| Name | Description |
| -------- | -------- |
| OH_HUKS_CHALLENGE_TYPE_NORMAL | Normal challenge, which is of 32 bytes by default. |
| OH_HUKS_CHALLENGE_TYPE_CUSTOM | Custom challenge, which supports only one authentication for multiple keys. The valid value of a custom challenge is of 8 bytes. |
| OH_HUKS_CHALLENGE_TYPE_NONE | Challenge is not required. |
### OH_Huks_CipherMode
```
enum OH_Huks_CipherMode
```
**Description**<br>
Enumerates the cipher modes.
| Name | Description |
| -------- | -------- |
| OH_HUKS_MODE_ECB | Electronic Code Block (ECB) mode. |
| OH_HUKS_MODE_CBC | Cipher Block Chaining (CBC) mode. |
| OH_HUKS_MODE_CTR | Counter (CTR) mode. |
| OH_HUKS_MODE_OFB | Output Feedback (OFB) mode. |
| OH_HUKS_MODE_CCM | Counter with CBC-MAC (CCM) mode. |
| OH_HUKS_MODE_GCM | Galois/Counter (GCM) mode. |
### OH_Huks_ErrCode
```
enum OH_Huks_ErrCode
```
**Description**<br>
Enumerates the error codes.
| Name | Description |
| -------- | -------- |
| OH_HUKS_SUCCESS | The operation is successful. |
| OH_HUKS_ERR_CODE_PERMISSION_FAIL | Permission verification failed. |
| OH_HUKS_ERR_CODE_ILLEGAL_ARGUMENT | Invalid parameters are detected. |
| OH_HUKS_ERR_CODE_NOT_SUPPORTED_API | The API is not supported. |
| OH_HUKS_ERR_CODE_FEATURE_NOT_SUPPORTED | The feature is not supported. |
| OH_HUKS_ERR_CODE_MISSING_CRYPTO_ALG_ARGUMENT | Key algorithm parameters are missing. |
| OH_HUKS_ERR_CODE_INVALID_CRYPTO_ALG_ARGUMENT | Invalid key algorithm parameters are detected. |
| OH_HUKS_ERR_CODE_FILE_OPERATION_FAIL | Failed to operate the file. |
| OH_HUKS_ERR_CODE_COMMUNICATION_FAIL | The process communication failed. |
| OH_HUKS_ERR_CODE_CRYPTO_FAIL | Failed to operate the algorithm library. |
| OH_HUKS_ERR_CODE_KEY_AUTH_PERMANENTLY_INVALIDATED | Failed to access the key because the key has expired. |
| OH_HUKS_ERR_CODE_KEY_AUTH_VERIFY_FAILED | Failed to access the key because the authentication has failed. |
| OH_HUKS_ERR_CODE_KEY_AUTH_TIME_OUT | Key access timed out. |
| OH_HUKS_ERR_CODE_SESSION_LIMIT | The number of key operation sessions has reached the limit. |
| OH_HUKS_ERR_CODE_ITEM_NOT_EXIST | The entity does not exist. |
| OH_HUKS_ERR_CODE_INTERNAL_ERROR | Internal error. |
| OH_HUKS_ERR_CODE_CREDENTIAL_NOT_EXIST | The authentication credential does not exist. |
### OH_Huks_ImportKeyType
```
enum OH_Huks_ImportKeyType
```
**Description**<br>
Enumerates the types of keys to import. By default, a public key is imported. This field is not required when a symmetric key is imported.
| Name | Description |
| -------- | -------- |
| OH_HUKS_KEY_TYPE_PUBLIC_KEY | Public key. |
| OH_HUKS_KEY_TYPE_PRIVATE_KEY | Private key. |
| OH_HUKS_KEY_TYPE_KEY_PAIR | Public and private key pair. |
### OH_Huks_KeyAlg
```
enum OH_Huks_KeyAlg
```
**Description**<br>
Enumerates the key algorithms.
| Name | Description |
| -------- | -------- |
| OH_HUKS_ALG_RSA | RSA. |
| OH_HUKS_ALG_ECC | ECC. |
| OH_HUKS_ALG_DSA | DSA. |
| OH_HUKS_ALG_AES | AES. |
| OH_HUKS_ALG_HMAC | HMAC. |
| OH_HUKS_ALG_HKDF | HKDF. |
| OH_HUKS_ALG_PBKDF2 | PBKDF2. |
| OH_HUKS_ALG_ECDH | ECDH. |
| OH_HUKS_ALG_X25519 | X25519. |
| OH_HUKS_ALG_ED25519 | Ed25519. |
| OH_HUKS_ALG_DH | DH. |
| OH_HUKS_ALG_SM2 | SM2. |
| OH_HUKS_ALG_SM3 | SM3. |
| OH_HUKS_ALG_SM4 | SM4. |
### OH_Huks_KeyDigest
```
enum OH_Huks_KeyDigest
```
**Description**<br>
Enumerates the digest algorithms.
| Name | Description |
| -------- | -------- |
| OH_HUKS_DIGEST_NONE | No digest algorithm. |
| OH_HUKS_DIGEST_MD5 | MD5. |
| OH_HUKS_DIGEST_SM3 | SM3. |
| OH_HUKS_DIGEST_SHA1 | SHA-1. |
| OH_HUKS_DIGEST_SHA224 | SHA-224. |
| OH_HUKS_DIGEST_SHA256 | SHA-256. |
| OH_HUKS_DIGEST_SHA384 | SHA-384. |
| OH_HUKS_DIGEST_SHA512 | SHA-512. |
### OH_Huks_KeyFlag
```
enum OH_Huks_KeyFlag
```
**Description**<br>
Enumerates the key generation modes.
| Name | Description |
| -------- | -------- |
| OH_HUKS_KEY_FLAG_IMPORT_KEY | Import a public key using an API. |
| OH_HUKS_KEY_FLAG_GENERATE_KEY | Generate a key by using an API. |
| OH_HUKS_KEY_FLAG_AGREE_KEY | Generate a key by using a key agreement API. |
| OH_HUKS_KEY_FLAG_DERIVE_KEY | Derive a key by using an API. |
### OH_Huks_KeyGenerateType
```
enum OH_Huks_KeyGenerateType
```
**Description**<br>
Enumerates the key generation types.
| Name | Description |
| -------- | -------- |
| OH_HUKS_KEY_GENERATE_TYPE_DEFAULT | Key generated by default. |
| OH_HUKS_KEY_GENERATE_TYPE_DERIVE | Derived key. |
| OH_HUKS_KEY_GENERATE_TYPE_AGREE | Key obtained by key agreement. |
### OH_Huks_KeyPadding
```
enum OH_Huks_KeyPadding
```
**Description**<br>
Enumerates the padding algorithms.
| Name | Description |
| -------- | -------- |
| OH_HUKS_PADDING_NONE | No padding algorithm. |
| OH_HUKS_PADDING_OAEP | Optimal Asymmetric Encryption Padding (OAEP). |
| OH_HUKS_PADDING_PSS | Probabilistic Signature Scheme (PSS). |
| OH_HUKS_PADDING_PKCS1_V1_5 | Public Key Cryptography Standards (PKCS) \#1 v1.5. |
| OH_HUKS_PADDING_PKCS5 | PKCS \#5. |
| OH_HUKS_PADDING_PKCS7 | PKCS \#7. |
### OH_Huks_KeyPurpose
```
enum OH_Huks_KeyPurpose
```
**Description**<br>
Enumerates the key purposes.
| Name | Description |
| -------- | -------- |
| OH_HUKS_KEY_PURPOSE_ENCRYPT | Used to encrypt the plaintext. |
| OH_HUKS_KEY_PURPOSE_DECRYPT | Used to decrypt the cipher text. |
| OH_HUKS_KEY_PURPOSE_SIGN | Used to sign data. |
| OH_HUKS_KEY_PURPOSE_VERIFY | Used to verify the signature. |
| OH_HUKS_KEY_PURPOSE_DERIVE | Used to derive a key. |
| OH_HUKS_KEY_PURPOSE_WRAP | Used for an encrypted export. |
| OH_HUKS_KEY_PURPOSE_UNWRAP | Used for an encrypted import. |
| OH_HUKS_KEY_PURPOSE_MAC | Used to generate a message authentication code (MAC). |
| OH_HUKS_KEY_PURPOSE_AGREE | Used for key agreement. |
### OH_Huks_KeySize
```
enum OH_Huks_KeySize
```
**Description**<br>
Enumerates the key sizes.
| Name | Description |
| -------- | -------- |
| OH_HUKS_RSA_KEY_SIZE_512 | Rivest-Shamir-Adleman (RSA) key of 512 bits. |
| OH_HUKS_RSA_KEY_SIZE_768 | RSA key of 768 bits. |
| OH_HUKS_RSA_KEY_SIZE_1024 | RSA key of 1024 bits. |
| OH_HUKS_RSA_KEY_SIZE_2048 | RSA key of 2048 bits. |
| OH_HUKS_RSA_KEY_SIZE_3072 | RSA key of 3072 bits. |
| OH_HUKS_RSA_KEY_SIZE_4096 | RSA key of 4096 bits. |
| OH_HUKS_ECC_KEY_SIZE_224 | Elliptic Curve Cryptography (ECC) key of 224 bits. |
| OH_HUKS_ECC_KEY_SIZE_256 | ECC key of 256 bits. |
| OH_HUKS_ECC_KEY_SIZE_384 | ECC key of 384 bits. |
| OH_HUKS_ECC_KEY_SIZE_521 | ECC key of 521 bits. |
| OH_HUKS_AES_KEY_SIZE_128 | Advanced Encryption Standard (AES) key of 128 bits. |
| OH_HUKS_AES_KEY_SIZE_192 | AES key of 192 bits. |
| OH_HUKS_AES_KEY_SIZE_256 | AES key of 256 bits. |
| OH_HUKS_AES_KEY_SIZE_512 | AES key of 512 bits. |
| OH_HUKS_CURVE25519_KEY_SIZE_256 | Curve25519 key of 256 bits. |
| OH_HUKS_DH_KEY_SIZE_2048 | Diffie-Hellman (DH) key of 2048 bits. |
| OH_HUKS_DH_KEY_SIZE_3072 | DH key of 3072 bits. |
| OH_HUKS_DH_KEY_SIZE_4096 | DH key of 4096 bits. |
| OH_HUKS_SM2_KEY_SIZE_256 | ShangMi2 (SM2) key of 256 bits. |
| OH_HUKS_SM4_KEY_SIZE_128 | ShangMi4 (SM4) key of 128 bits. |
### OH_Huks_KeyStorageType
```
enum OH_Huks_KeyStorageType
```
**Description**<br>
Enumerates the key storage modes.
| Name | Description |
| -------- | -------- |
| OH_HUKS_STORAGE_TEMP | The key is managed locally. |
| OH_HUKS_STORAGE_PERSISTENT | The key is managed by the HUKS service. |
### OH_Huks_SecureSignType
```
enum OH_Huks_SecureSignType
```
**Description**<br>
Enumerates the signature types of the keys generated or imported.
| Name | Description |
| -------- | -------- |
| OH_HUKS_SECURE_SIGN_WITH_AUTHINFO | The signature carries authentication information. This field is specified when a key is generated or imported. When the key is used to sign data, the data will be added with the authentication information and then be signed. |
### OH_Huks_Tag
```
enum OH_Huks_Tag
```
**Description**<br>
Enumerates the tag values used in parameter sets.
| Name | Description |
| -------- | -------- |
| OH_HUKS_TAG_ALGORITHM | Tags for key parameters. The value range is 1 to 200. Algorithm. |
| OH_HUKS_TAG_PURPOSE | Key purpose. |
| OH_HUKS_TAG_KEY_SIZE | Key size. |
| OH_HUKS_TAG_DIGEST | Digest algorithm. |
| OH_HUKS_TAG_PADDING | Padding algorithm. |
| OH_HUKS_TAG_BLOCK_MODE | Cipher mode. |
| OH_HUKS_TAG_KEY_TYPE | Key type. |
| OH_HUKS_TAG_ASSOCIATED_DATA | Associated authentication data. |
| OH_HUKS_TAG_NONCE | Field for key encryption and decryption. |
| OH_HUKS_TAG_IV | Initialized vector (IV). |
| OH_HUKS_TAG_INFO | Information generated during key derivation. |
| OH_HUKS_TAG_SALT | Salt value used for key derivation. |
| OH_HUKS_TAG_ITERATION | Number of iterations for key derivation. |
| OH_HUKS_TAG_KEY_GENERATE_TYPE | Type of the generated key. For details, see [OH_Huks_KeyGenerateType](#oh_huks_keygeneratetype). |
| OH_HUKS_TAG_AGREE_ALG | Algorithm used in key agreement. |
| OH_HUKS_TAG_AGREE_PUBLIC_KEY_IS_KEY_ALIAS | Alias of the public key used for key agreement. |
| OH_HUKS_TAG_AGREE_PRIVATE_KEY_ALIAS | Alias of the private key used for key agreement. |
| OH_HUKS_TAG_AGREE_PUBLIC_KEY | Public key used for key agreement. |
| OH_HUKS_TAG_KEY_ALIAS | Alias of the key. |
| OH_HUKS_TAG_DERIVE_KEY_SIZE | Size of the derived key. |
| OH_HUKS_TAG_IMPORT_KEY_TYPE | Type of the key to import. For details, see [OH_Huks_ImportKeyType](#oh_huks_importkeytype). |
| OH_HUKS_TAG_UNWRAP_ALGORITHM_SUITE | Algorithm suite required for encrypted imports. |
| OH_HUKS_TAG_ALL_USERS | Tags for access control and user authentication. The value range is 301 to 500. All users in the multi-user scenario. |
| OH_HUKS_TAG_USER_ID | Multi-user ID. |
| OH_HUKS_TAG_NO_AUTH_REQUIRED | Specifies whether key access control is required. |
| OH_HUKS_TAG_USER_AUTH_TYPE | User authentication type in key access control. |
| OH_HUKS_TAG_AUTH_TIMEOUT | Timeout duration for key access. |
| OH_HUKS_TAG_AUTH_TOKEN | Authentication token for the key. |
| OH_HUKS_TAG_KEY_AUTH_ACCESS_TYPE | Access control type. For details, see [OH_Huks_AuthAccessType](#oh_huks_authaccesstype). This parameter must be set together with the user authentication type. |
| OH_HUKS_TAG_KEY_SECURE_SIGN_TYPE | Signature type for the key to be generated or imported. |
| OH_HUKS_TAG_CHALLENGE_TYPE | Challenge type. For details, see [OH_Huks_ChallengeType](#oh_huks_challengetype). |
| OH_HUKS_TAG_CHALLENGE_POS | Position of the 8-byte valid value in a custom challenge. For details, see [OH_Huks_ChallengePosition](#oh_huks_challengeposition). |
| OH_HUKS_TAG_ATTESTATION_CHALLENGE | Tags for key attestation. The value range is 501 to 600. Challenge value used in the attestation. |
| OH_HUKS_TAG_ATTESTATION_APPLICATION_ID | Application ID used in the attestation. |
| OH_HUKS_TAG_ATTESTATION_ID_ALIAS | Alias of the key. |
| OH_HUKS_TAG_ATTESTATION_ID_SEC_LEVEL_INFO | Security level used in the attestation. |
| OH_HUKS_TAG_ATTESTATION_ID_VERSION_INFO | Version information used in the attestation. |
| OH_HUKS_TAG_IS_KEY_ALIAS | 601 to 1000 are reserved for other tags.<br/>Extended tags. The value range is 1001 to 9999. Specifies whether it is a key alias. |
| OH_HUKS_TAG_KEY_STORAGE_FLAG | Key storage mode. For details, see [OH_Huks_KeyStorageType](#oh_huks_keystoragetype). |
| OH_HUKS_TAG_IS_ALLOWED_WRAP | Specifies whether to allow the key to be wrapped. |
| OH_HUKS_TAG_KEY_WRAP_TYPE | Key wrap type. |
| OH_HUKS_TAG_KEY_AUTH_ID | Authentication ID. |
| OH_HUKS_TAG_KEY_ROLE | Role of the key. |
| OH_HUKS_TAG_KEY_FLAG | Key flag. For details, see [OH_Huks_KeyFlag](#oh_huks_keyflag). |
| OH_HUKS_TAG_IS_ASYNCHRONIZED | Specifies whether this API is asynchronous. |
| OH_HUKS_TAG_KEY_DOMAIN | Key domain. |
| OH_HUKS_TAG_SYMMETRIC_KEY_DATA | 11000 to 12000 are reserved.<br/>20001 to N are reserved for other tags. Symmetric key data. |
| OH_HUKS_TAG_ASYMMETRIC_PUBLIC_KEY_DATA | Public key data of the asymmetric key pair. |
| OH_HUKS_TAG_ASYMMETRIC_PRIVATE_KEY_DATA | Private key data of the asymmetric key pair. |
### OH_Huks_TagType
```
enum OH_Huks_TagType
```
**Description**<br>
Enumerates the tag types.
**See**
[OH_Huks_Param](_o_h___huks___param.md)
| Name | Description |
| -------- | -------- |
| OH_HUKS_TAG_TYPE_INVALID | Invalid tag type. |
| OH_HUKS_TAG_TYPE_INT | int32_t. |
| OH_HUKS_TAG_TYPE_UINT | uin32_t. |
| OH_HUKS_TAG_TYPE_ULONG | uin64_t. |
| OH_HUKS_TAG_TYPE_BOOL | Boolean. |
| OH_HUKS_TAG_TYPE_BYTES | [OH_Huks_Blob](_o_h___huks___blob.md). |
### OH_Huks_UserAuthType
```
enum OH_Huks_UserAuthType
```
**Description**<br>
Enumerates the user authentication types.
| Name | Description |
| -------- | -------- |
| OH_HUKS_USER_AUTH_TYPE_FINGERPRINT | Fingerprint authentication. |
| OH_HUKS_USER_AUTH_TYPE_FACE | Facial authentication. |
| OH_HUKS_USER_AUTH_TYPE_PIN | PIN authentication. |
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