Sign Method
Signs a buffer.
Syntax
QByteArray Sign(const QByteArray& qbaBuffer, bool bDetached);
Remarks
Use this method to sign a byte array and get the protected message in another byte array. Set the Detached parameter to false to create an enveloped/enveloping, rather than detached signature.Please note that certain signature algorithms/kinds only support detached signing.
Specify the signing key in Key property before commencing the signing.
Please note that the key assigned must have a private key part.
Error Handling
This method returns a Byte Array value; after it returns, call the GetLastErrorCode() method to obtain its 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.