Original Idea And Original Code
        Thomas Vandahl <thomas.vandahl@contec-dt.de>

Addition Help, with Batchmode etc
        Dieter Werner <e8726172@student.tuwien.ac.at>
        Walter Schmidt <wschmi@ibm.net>
        
New Code for seamless(ish) usage
        Nick Burch <nick@horton-vineyard.com>

Error handling for invalid Passphrase during Sign:
	Dieter Werner <d_werner@gmx.net> (<e8726172@student.tuwien.ac.at>)

