The XML - Verify Task verifies if the signature of the specified XML file is valid. If the XML file has been signed, this action can detect modifications to that file that may invalidate the signature.
XML Verify > File filter > Location sub tab
The XML Transform Task uses the standard VisualCron File filter to define the properties of the listed files.
XML Verify > Destination sub tab
Certificate
Click the Settings icon to open the Manage Certificates dialog where a certificate is selected, imported or created.