harmony 鸿蒙HuksKeyApi

2023-06-24
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HuksKeyApi

Overview

Describes the OpenHarmony Universal KeyStore (HUKS) capabilities, including key management and cryptography operations, provided for applications. The keys managed by HUKS can be imported by applications or generated by calling the HUKS APIs.

\@syscap SystemCapability.Security.Huks

Since: 9

Summary

Files

Name	Description
native_huks_api.h	Declares the APIs used to access the HUKS. File to include: Library: libhuks_ndk.z.so

Functions

Name	Description
OH_Huks_GetSdkVersion (struct OH_Huks_Blob *sdkVersion)	Obtains the current HUKS SDK version.
OH_Huks_GenerateKeyItem (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSetIn, struct OH_Huks_ParamSet *paramSetOut)	Generates a key.
OH_Huks_ImportKeyItem (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSet, const struct OH_Huks_Blob *key)	Imports a key in plaintext.
OH_Huks_ImportWrappedKeyItem (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_Blob wrappingKeyAlias, const struct OH_Huks_ParamSet paramSet, const struct OH_Huks_Blob wrappedKeyData)	Imports a wrapped (encrypted) key.
OH_Huks_ExportPublicKeyItem (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSet, struct OH_Huks_Blob *key)	Exports a public key.
OH_Huks_DeleteKeyItem (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSet)	Deletes a key.
OH_Huks_GetKeyItemParamSet (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSetIn, struct OH_Huks_ParamSet *paramSetOut)	Obtains the properties of a key.
OH_Huks_IsKeyItemExist (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSet)	Checks whether a key exists.
OH_Huks_AttestKeyItem (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSet, struct OH_Huks_CertChain *certChain)	Obtains the certificate chain of a key.
OH_Huks_InitSession (const struct OH_Huks_Blob keyAlias, const struct OH_Huks_ParamSet paramSet, struct OH_Huks_Blob handle, struct OH_Huks_Blob token)	Initializes a key session to obtain a handle (mandatory) and a token (optional).
OH_Huks_UpdateSession (const struct OH_Huks_Blob handle, const struct OH_Huks_ParamSet paramSet, const struct OH_Huks_Blob inData, struct OH_Huks_Blob outData)	Adds data by segment for the key operation, performs the related key operation, and outputs the processed data.
OH_Huks_FinishSession (const struct OH_Huks_Blob handle, const struct OH_Huks_ParamSet paramSet, const struct OH_Huks_Blob inData, struct OH_Huks_Blob outData)	Finishes a key session.
OH_Huks_AbortSession (const struct OH_Huks_Blob handle, const struct OH_Huks_ParamSet paramSet)	Aborts a key session.

Function Description

OH_Huks_AbortSession()

struct OH_Huks_Result OH_Huks_AbortSession (const struct OH_Huks_Blob * handle, const struct OH_Huks_ParamSet * paramSet )

Description Aborts a key session.

Parameters

Name	Description
handle	Indicates the pointer to the key session handle, which is generated by OH_Huks_InitSession.
paramSet	Indicates the pointer to the parameters required for aborting the key session. By default, this parameter is a null pointer.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

See

OH_Huks_InitSession

OH_Huks_UpdateSession

OH_Huks_FinishSession

OH_Huks_AttestKeyItem()

struct OH_Huks_Result OH_Huks_AttestKeyItem (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSet, struct OH_Huks_CertChain * certChain )

Description Obtains the certificate chain of a key.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the target key.
paramSet	Indicates the pointer to the parameters required for obtaining the certificate chain.
certChain	Indicates the pointer to the certificate chain obtained.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_DeleteKeyItem()

struct OH_Huks_Result OH_Huks_DeleteKeyItem (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSet )

Description Deletes a key.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the key to delete. It must be the same as the alias used for generating the key.
paramSet	Indicates the pointer to the parameters required for deleting the key. By default, this parameter is a null pointer.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_ExportPublicKeyItem()

struct OH_Huks_Result OH_Huks_ExportPublicKeyItem (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSet, struct OH_Huks_Blob * key )

Description Exports a public key.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the public key to export. It must be the same as the alias used for generating the key.
paramSet	Indicates the pointer to the parameters required for exporting the public key.
key	Indicates the pointer to the public key exported.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_FinishSession()

struct OH_Huks_Result OH_Huks_FinishSession (const struct OH_Huks_Blob * handle, const struct OH_Huks_ParamSet * paramSet, const struct OH_Huks_Blob * inData, struct OH_Huks_Blob * outData )

Description Finishes a key session.

Parameters

Name	Description
handle	Indicates the pointer to the key session handle, which is generated by OH_Huks_InitSession.
paramSet	Indicates the pointer to the parameters required for the key operation.
inData	Indicates the pointer to the data to be passed in.
outData	Indicates the pointer to the output data.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

See

OH_Huks_InitSession

OH_Huks_UpdateSession

OH_Huks_AbortSession

OH_Huks_GenerateKeyItem()

struct OH_Huks_Result OH_Huks_GenerateKeyItem (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSetIn, struct OH_Huks_ParamSet * paramSetOut )

Description Generates a key.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the key to generate. The alias must be unique in the process of the service.
paramSetIn	Indicates the pointer to the parameters for generating the key.
paramSetOut	Indicates the pointer to a temporary key generated. If the generated key is not of a temporary type, this parameter is a null pointer.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_GetKeyItemParamSet()

struct OH_Huks_Result OH_Huks_GetKeyItemParamSet (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSetIn, struct OH_Huks_ParamSet * paramSetOut )

Description Obtains the properties of a key.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the target key.
paramSetIn	Indicates the pointer to the tag required for obtaining the properties. By default, this parameter is a null pointer.
paramSetOut	Indicates the pointer to the key properties obtained.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_GetSdkVersion()

struct OH_Huks_Result OH_Huks_GetSdkVersion (struct OH_Huks_Blob * sdkVersion)

Description Obtains the current HUKS SDK version.

Parameters

Name	Description
sdkVersion	Indicates the pointer to the SDK version (string) obtained.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_ImportKeyItem()

struct OH_Huks_Result OH_Huks_ImportKeyItem (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSet, const struct OH_Huks_Blob * key )

Description Imports a key in plaintext.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the key to import. The alias must be unique in the process of the service.
paramSet	Indicates the pointer to the properties of the key to import.
key	Indicates the pointer to the key to import. The key data must be in format defined in HuksTypeApi.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_ImportWrappedKeyItem()

struct OH_Huks_Result OH_Huks_ImportWrappedKeyItem (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_Blob * wrappingKeyAlias, const struct OH_Huks_ParamSet * paramSet, const struct OH_Huks_Blob * wrappedKeyData )

Description Imports a wrapped (encrypted) key.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the key to import. The alias must be unique in the process of the service.
wrappingKeyAlias	Indicates the pointer to the alias of the wrapping key, which is obtained through key agreement and used to decrypt the key to import.
paramSet	Indicates the pointer to the parameters for importing the wrapped key.
wrappedKeyData	Indicates the pointer to the wrapped key to import. The data must be in the format defined in OH_Huks_AlgSuite.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

OH_Huks_InitSession()

struct OH_Huks_Result OH_Huks_InitSession (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSet, struct OH_Huks_Blob * handle, struct OH_Huks_Blob * token )

Description Initializes a key session to obtain a handle (mandatory) and a token (optional).

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the target key.
paramSet	Indicates the pointer to the parameters for the initialization operation.
handle	Indicates the pointer to the handle of the key session. This handle is required for subsequent operations of the same key, including OH_Huks_UpdateSession, OH_Huks_FinishSession, and OH_Huks_AbortSession.
token	Indicates the pointer to the token used for key access control.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the operation is successful; returns an error code otherwise.

See

OH_Huks_UpdateSession

OH_Huks_FinishSession

OH_Huks_AbortSession

OH_Huks_IsKeyItemExist()

struct OH_Huks_Result OH_Huks_IsKeyItemExist (const struct OH_Huks_Blob * keyAlias, const struct OH_Huks_ParamSet * paramSet )

Description Checks whether a key exists.

Parameters

Name	Description
keyAlias	Indicates the pointer to the alias of the key to check.
paramSet	Indicates the pointer to the parameters required for checking the key. By default, this parameter is a null pointer.

Returns

Returns OH_Huks_ErrCode#OH_HUKS_SUCCESS if the key exists.
Returns OH_Huks_ErrCode#OH_HUKS_ERR_CODE_ITEM_NOT_EXIST if the key does not exist.
Returns any other error code for other cases.

OH_Huks_UpdateSession()

struct OH_Huks_Result OH_Huks_UpdateSession (const struct OH_Huks_Blob * handle, const struct OH_Huks_ParamSet * paramSet, const struct OH_Huks_Blob * inData, struct OH_Huks_Blob * outData )

Description Adds data by segment for the key operation, performs the related key operation, and outputs the processed data.

Parameters

Name	Description
handle	Indicates the pointer to the key session handle, which is generated by OH_Huks_InitSession.
paramSet	Indicates the pointer to the parameters required for the key operation.
inData	Indicates the pointer to the data to be processed. This API can be called multiple times to process large data by segment.
outData	Indicates the pointer to the output data.