VerifySignature Method
Verifies the signature of the current message.
Syntax
int VerifySignature();
Remarks
This method attempts to verify the signature of the input message. If the message does not have a certificate attached, the class will attempt to verify the signature using the certificate supplied in SignerCert (if any). If no certificate is found, the class fails with an error.
If this method is successful, the SignerCert property will contain the certificate information of the message signer.
NOTE: This function does not attempt to check the validity of the signing certificate itself.
Error Handling
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.)