harmony 鸿蒙crypto_signature.h

2025-06-12
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crypto_signature.h

Overview

Provides APIs for signature verification.

Library: libohcrypto.so

System capability: SystemCapability.Security.CryptoFramework

Since: 12

Related module: CryptoSignatureApi

Summary

Types

Name	Description
typedef struct OH_CryptoVerify OH_CryptoVerify	Defines the data used for signature verification.

Enums

Name	Description
CryptoSignature_ParamType { CRYPTO_PSS_MD_NAME_STR = 100, CRYPTO_PSS_MGF_NAME_STR = 101, CRYPTO_PSS_MGF1_NAME_STR = 102, CRYPTO_PSS_SALT_LEN_INT = 103, CRYPTO_PSS_TRAILER_FIELD_INT = 104, CRYPTO_SM2_USER_ID_DATABLOB = 105 }	Enumerates the types of signature verification parameters.

Functions

Name	Description
OH_Crypto_ErrCode OH_CryptoVerify_Create (const char algoName, OH_CryptoVerify *verify)	Creates a Verify instance for signature verification.
OH_Crypto_ErrCode OH_CryptoVerify_Init (OH_CryptoVerify ctx, OH_CryptoPubKey pubKey)	Initializes a Verify instance by using the public key.
OH_Crypto_ErrCode OH_CryptoVerify_Update (OH_CryptoVerify ctx, Crypto_DataBlob in)	Updates the data to be verified.
bool OH_CryptoVerify_Final (OH_CryptoVerify ctx, Crypto_DataBlob in, Crypto_DataBlob *signData)	Verifies the signature of the data.
OH_Crypto_ErrCode OH_CryptoVerify_Recover (OH_CryptoVerify ctx, Crypto_DataBlob signData, Crypto_DataBlob *rawSignData)	Restores the signature data.
const char * OH_CryptoVerify_GetAlgoName (OH_CryptoVerify *ctx)	Obtains the signature verification algorithm.
OH_Crypto_ErrCode OH_CryptoVerify_SetParam (OH_CryptoVerify ctx, CryptoSignature_ParamType type, Crypto_DataBlob value)	Sets signature verification parameters.
OH_Crypto_ErrCode OH_CryptoVerify_GetParam (OH_CryptoVerify ctx, CryptoSignature_ParamType type, Crypto_DataBlob value)	Obtains signature verification parameters.
void OH_CryptoVerify_Destroy (OH_CryptoVerify *ctx)	Destroys a Verify instance.

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