Pitropakis N., Lambrinoudakis C., Geneiatakis D., Gritzalis D., «A Practical Steganographic Approach for Matroska based High Quality Video files», 7th International Symposium on Security and Multimodality in Pervasive Environment (SMPE-2013), IEEE Computer Society Press Barcelona, Spain, March 2013.

Lalas E., Papathanasiou A., Lambrinoudakis C., «Privacy and Traceability in Social Networking Sites», Proceedings of the 16th Panhellenic Conference on Informatics (PCI 2012), pp. 127-132, IEEE Xplore, Piraeus, Greece, October 2012.

Vrakas N., Geneiatakis D., Lambrinoudakis C., «Is IP Multimedia Subsystem Affected by ‘Malformed Message’ Attacks? – An Evaluation of OpenIMS», Proceedings of the International Conference on Security and Cryptography (SECRYPT 2011), pp. 275-280, Science and Technology Publications Digital Library, Seville, Spain, 2011.

(3) Agudo I., Nuñez D., Giammatteo G., Rizomiliotis P., Lambrinoudakis C., «Cryptography goes to the Cloud», Proceedings of the 1st International Workshop on Security & Trust for Applications in Virtualised Environments (STAVE 2011), pp. 190-197, Springer, Loutraki, Greece, 2011.

Drogkaris P., Gritzalis S., Lambrinoudakis C., “Transforming the Greek e-Government Environment towards the e-Gov 2.0 Era”, Proceedings of the EGOVIS’10 International Conference on Electronic Government and the Information Systems Perspective, K. N. Andersedn, et al. (Eds.), pp. 142 -149, Springer LNCS 6267, Bilbao, Spain, September 2010.

Vrakas Ν., Geneiatakis D., Lambrinoudakis C., “A Call Conference Room Interception Attack and its Detection” , Proceedings of the 7th International Conference on Trust, Privacy and Security in Digital Business (TrustBus’10), pp. 38-44, Springer LNCS 6264, Bilbao, Spain, September 2010.

Vrakas Ν., Kalloniatis C., Tsohou A., Lambrinoudakis C., “Privacy Requirements Engineering for Trustworthy e-government Services”, Proceedings of the 3rd International Conference on Trust and Trustworthy Computing (TRUST’10), pp. 298-307, Springer LNCS 6101, Berlin, Germany, June 2010.

Tsohou A., Kokolakis S., Lambrinoudakis C., Gritzalis S., “Unifying ISO Security Standards Practices into a Single Security Framework”, Proceedings of the 12th Annual IFIP Workshop on Information Security Management (South African Information Security Multi-Conference), pp. 188-203, Port Elizabeth, South Africa, May 2010.

Drogkaris P., Lambrinoudakis C., Gritzalis S., «Introducing Federated Identities to One-Stop-Shop e-Government Environments: The Greek Case», Proceedings of the eChallenges 2009 Conference, P. Cunningham (Ed.), Istanbul, Turkey, October 2009.

Geneiatakis D., Lambrinoudakis C., Gritzalis S., «A Hierarchical Model for Cross-Domain Communication of Health-Care Units», Proceedings of NSS 2009 – 3rd International Conference on Network and System Security, Y. Xiang, J. Lopez, H. Wang (Eds.), IEEE Computer Society Press, Gold Coast, Australia, October 2009.

Tsohou A., Kokolakis S., Lambrinoudakis C., Gritzalis S., «Information Systems Security Management: A review and a classification of the ISO standards», Proceedings of the e-Democracy 2009 – 3rd Conference on Electronic Democracy – Next Generation Society: Technological and Legal Issues, A. Sideridis (Ed.), Springer Lecture Notes of the ICSSIT Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, Athens, Greece, September 2009.

Drogkaris P., Gritzalis S., Lambrinoudakis C., «Enabling Secure Data Management in e-Government Environments: The Greek Case», Proceedings of ongoing research and projects of EGOV 09 – 8th International Conference, EGOV 2009, H. J. Scholl, M. Janssen, R. Traunmuller, M. A. Wimmer (Eds.), Trauner Verlag, Linz, Austria, September 2009.

Tsohou A., Rizomiliotis P., Lambrinoudakis C., Gritzalis S., «Security and Privacy Issues in Bipolar Disorder Research», Proceedings of the 7th International Conference on Information and Communication Technologies in Health (ICICTH), A. Hasman et al. (Eds.), INEAG, Samos, Greece, July 2009.

Geneiatakis D., Lambrinoudakis C., Kambourakis G., Kafkalas A., Ehlert S., “A First Order Logic Security Verification Model for SIP”, Proceedings of the IEEE International Conference on Communications, Communications and Information Systems Security Symposium (ICC’09-CISS), IEEE Press, Dresden, Germany, June 2009.

A.N. Yannacopoulos, C. Lambrinoudakis, S. Gritzalis, S.Z. Xanthopoulos, S.K. Katsikas, “Modeling privacy insurance contracts and their utilization in risk management for ICT firms”, in Proceedings, Malaga, Spain, ESORICS 2008.

Yiannakopoulos A., Lambrinoudakis C., Gritzalis S., Xanthopoulos S., Katsikas S., “Modeling Privacy Insurance Contracts and Their Utilization in Risk Management for ICT Firms”, Proceedings of the 13th European Symposium on Research in Computer Security – ESORICS 2008, Jajodia S., Lopez J. (Eds), pp. 207-222, Springer LNCS 5283, Malaga, Spain, October 2008.

Drogkaris P., Geneiatakis D., Lambrinoudakis C., Gritzalis S., “Towards an Enhanced Authentication Framework in eGovernment: The Greek case”, EGOV’08 – 7th International Conference on Electronic Government, M. Wimmer et al. (Eds.), Trauner Proceedings (Proceedings on ongoing research, projects, and general development issues), Turin, Italy, September 2008.

Geneiatakis D., Kambourakis G., Lambrinoudakis C., “A Mechanism for Ensuring the Validity and Accuracy of the Billing Services in IP Telephony”, Proceedings of the 5th International Conference on Trust, Privacy and Security in Digital Business (TrustBus’08), pp. 59-68, Springer LNCS 5185, Turin, Italy, September 2008.

Geneiatakis D., Lambrinoudakis C., “A Cost-Effective Mechanism for Protecting SIP Based Internet Telephony Services Against Signaling Attacks”, Proceedings of the IMS and Mobile Multimedia Workshop, in conjunction with the 4th International Mobile Multimedia Communications Conference – MobiMedia 2008, ACM International Conference Proceedings, Oulu, Finland, 2008.

Geneiatakis D., Dagiuklas A., Lambrinoudakis C., Kambourakis G., Gritzalis S., “Novel Protecting Mechanism for SIP-Based Infrastructure against Malformed Message Attacks: Performance Evaluation Study” Proceedings of the 5th International Conference on Communication Systems, Networks and Digital Signal Processing (CSNDSP’06), M. Logothetis et al. (Eds), Patras, Greece, July 2006.

Gymnopoulos L., Karyda M., Balopoulos T., Dritsas S., Kokolakis S., Lambrinoudakis C., Gritzalis S., “Developing a Security Patterns Repository for Secure Applications Design”, Proceedings of the ECIW 2006 5th European Conference on Information Warfare and Security, D. Remenyi et al. (Eds.), pp. 51-60, published by ACL Academic Conferences Limited, Helsinki, Finland, June 2006.

Karyda M., Balopoulos T., Dritsas S., Gymnopoulos L., Kokolakis S., Lambrinoudakis C., Gritzalis S., “An Ontology for Secure e-Government Applications”, Proceedings of the DeSeGov’06 Workshop on Dependability and Security in eGovernment (in conjunction with ARES 2006 1st International Conference on Availability, Reliability, and Security), A. Tjoa, E. Schweighofer (Eds.), pp. 1033-1037, IEEE Computer Society Press, Vienna, Austria, April 2006.

Kambourakis G., Geneiatakis D., Gritzalis S., Dagiouklas A., Lambrinoudakis C., “Security and Privacy issues towards ENUM protocol”, Proceedings of the 5th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT’05), pp.478-483, IEEE Computer Society Press, Athens, Greece, December 2005.

Katsikas S., Yannacopoulos A., Gritzalis S., Lambrinoudakis C., Hatzopoulos P., “How much should we pay for security?”, Proceedings of the IFIP WG 11.1 and WG 11.5 Joint Working Conference on Security Management, Integrity, and Internal Control in Information Systems, P. Dowland, S. Furnell, B. Thuraisingham, X. C. Wang (Eds.), pp.59-70, Vol.193, Springer, Fairfax, USA, December 2005.

S.K. Katsikas, A.N. Yannacopoulos, S. Gritzalis, C. Lambrinoudakis and P. Hatzopoulos, “How much should we pay for security?”, in Proceedings, IFIP 11.1/11.5 Joint Working Conference on Security Management, Integrity and Internal Control in Information Systems, Fairfax, Virginia, σελ. 59-70, Fairfax, VA, USA, 2005.

Dritsas S., Gymnopoulos L., Karyda M., Balopoulos T., Kokolakis S., Lambrinoudakis C., Gritzalis S., “Employing Ontologies for the Development of Security Critical Applications: The Secure e-Poll Paradigm”, Proceedings of the IFIP I3E International Conference on eBusiness, eCommerce, and eGovernemnt, Funabashi M., Grzech A. (Eds.), pp.187-201, Springer, Poznan, Poland, October 2005.

Geneiatakis D., Kambourakis G., Dagiouklas A., Lambrinoudakis C., Gritzalis S., “A Framework for Detecting Malformed Messages in SIP Networks”, Proceedings of the 14th IEEE Workshop on Local and Metropolitan Area Networks (LANMAN 2005), Ramakrishnan K. (Ed.), IEEE Press, Chania, Greece, September 2005.

Geneiatakis D., Kambourakis G., Dagiouklas A., Lambrinoudakis C., Gritzalis S., “SIP Message Tampering: The SQL code INJECTION attack”, Proceedings of the 13th IEEE International Conference on Software Telecommunications and Computer Networks (SoftCOM 2005), N. Rozic et al. (Eds.), pp. 176-181, IEEE Press, Split, Croatia, September 2005.

Dritsas S., Mallios J., Gritzalis D., Lambrinoudakis C., “Applicability of Privacy Enhancing Technologies in Ubiquitous Computing Environments”, Proceedings of the 1st IEEE International Conference on Pervasive Services ICPS 2005 – Workshop on Security, Privacy, and Trust in Pervasive and Ubiquitous Computing SecPerU’05, P. Georgiadis, S. Gritzalis, Y. Marias (Eds.), pp. 61-70, Diaylos Press, Santorini, Greece, July 2005.

Geneiatakis D., Kambourakis G., Dagiuklas T., Lambrinoudakis C., Gritzalis S., “SIP Security Mechanisms: A state-of-the-art review”, Proceedings of the 5th International Network Conference (INC’2005), S. Furnell, S. Katsikas (Eds.), pp. 147-156, Samos, Greece, July 2005.

Kambourakis G., Geneiatakis D., Dagiouklas A., Lambrinoudakis C., Gritzalis S., “Towards effective SIP load Balancing: The SNOCER approach”, Proceedings of the Third Annual VoIP Security Workshop, in cooperation with ACM SIGCOMM, D. Sisalem et al. (Eds), ACM Press, Berlin, Germany, June 2006.

Lambrinoudakis C., Platis A., Leros A., “A PKI Security reliability assessment methodology”, Proceeding of the European Safety & Reliability Conference (ESREL 2005), Poland, 2005.

Aggelis G., Gritzalis S., Lambrinoudakis C., “Addressing Authentication and Authorization Issues in the Grid”, Proceedings of the 4th International Network Conference (INC’2004), S. Furnell (Ed.), pp. 319-326, published by IEE & University of Plymouth, Plymouth, UK, July 2004.

Platis A., Lambrinoudakis C., Leros A., “A Probabilistic Model for Evaluating the Operational Cost of PKI-based Financial Transactions”, Proceedings of the 1st European PKI Workshop (EuroPKI’2004), S. Katsikas, S. Gritzalis, J. Lopez (Eds), pp. 149-160, Springer, Lecture Notes in Computer Science LNCS 3093, Samos, Greece, June 2004.

Deftereos S., Lambrinoudakis C., Gritzalis D., “High Level Security Policies for Health: From Theory to Practice”, Proceedings of the Electronic Health Record Security Workshop, International Congress on Medical and Care Compunetics (ICMCC), pp. 416-423, IOS Press, The Hague, Netherlands, June 2004.