VerifyFile Method

Verifies an enveloped or enveloping signature contained in a file.

Syntax

• C++
• Objective-C
• C

ANSI (Cross Platform)
int VerifyFile(const char* lpszSourceFile, const char* lpszDestFile);

Unicode (Windows)
INT VerifyFile(LPCWSTR lpszSourceFile, LPCWSTR lpszDestFile);

- (void)verifyFile:(NSString*)sourceFile :(NSString*)destFile;

#define MID_PUBLICKEYCRYPTO_VERIFYFILE 16

SECUREBLACKBOX_EXTERNAL int SECUREBLACKBOX_CALL SecureBlackbox_PublicKeyCrypto_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);

Remarks

Use this method to verify an enveloped or enveloping signature and extract the original signed message to another file.

The validation result is stored in SignatureValidationResult property.

Specify the public verification key in Key property before commencing the validation.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)