subjectTermFull: I. MATHEMATICS AND COMPUTER SCIENCE::COMPUTER SCIENCE::INFORMATION ASSURANCE AND SECURITY::ENGINEERINGsubjectTerm: III. ENGINEERING AND TECHNOLOGY_or_I. MATHEMATICS AND COMPUTER SCIENCEauthor: Pagourtzis, Aristeidis_or_Mavridis, Ioannis_or_Georgiadis, Christos_or_Alexopoulos, Theodoros