His research interests focus on security and data protection, especially security services, symmetric ciphers, intrusion detection, risk management and quantum cryptography. He has actively participated in 6th and 7th FP European programs (ePhoton/ONE+, BONE, SmoothIT, INDECT), Eureka-Celtic (DESYME) and several national projects. He coauthored over 60 publications and reports (papers, deliverables, book reviews, IETF draft, and book).