subjectTermFull: I. MATHEMATICS AND COMPUTER SCIENCE::COMPUTER SCIENCE::INFORMATION ASSURANCE AND SECURITY::ENGINEERINGsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCEauthor: Mavridis, Ioannis_or_Grontas, Panagiotis_or_Zachos, Efstathios_or_Pagourtzis, Aristeidis