I’m a cryptographer working at the chair of Andreas Hülsing and Tanja Lange at TU/e .
To contact me the easiest way is probably to send an E-Mail to web@⟨first name⟩jw.de .
For me the word “published” implies open access when referring to scientific papers. If your paper is pay-walled, it is therefore by definition not published and you have only yourself to blame if I don’t cite you.