Stefanos Gritzalis

Dimitrios Damopoulos, Georgios Kambourakis, Stefanos Gritzalis: From keyloggers to touchloggers: Take the rough with the smooth. Computers & Security 32: 102-114 (2013)

Constantinos Kolias, Georgios Kambourakis, Stefanos Gritzalis: Attacks and Countermeasures on 802.16: Analysis and Assessment. IEEE Communications Surveys and Tutorials 15(1): 487-514 (2013)

Panagiotis Rizomiliotis, Stefanos Gritzalis: On the security of AUTH, a provably secure authentication protocol based on the subspace LPN problem. Int. J. Inf. Sec. 12(2): 151-154 (2013)

Panagiotis Rizomiliotis, Stefanos Gritzalis: Revisiting lightweight authentication protocols based on hard learning problems. WISEC 2013: 125-130

Shiguo Lian, Jean-Henry Morin, Stefanos Gritzalis, Gregory L. Heileman: Special issue on ubiquitous multimedia services. Information Systems Frontiers 14(3): 477-479 (2012)

Athanasios Loukas, Dimitrios Damopoulos, Sofia-Anna Menesidou, Maria Eleni Skarkala, Georgios Kambourakis, Stefanos Gritzalis: MILC: A secure and privacy-preserving mobile instant locator with chatting. Information Systems Frontiers 14(3): 481-497 (2012)

Xi Chen, Shiguo Lian, Chu-Sing Yang, Stefanos Gritzalis: Guest Editorial. JNW 7(2): 219-221 (2012)

Haralambos Mouratidis, Christos Kalloniatis, Shareeful Islam, Marc-Philippe Huget, Stefanos Gritzalis: Aligning Security and Privacy to Support the Development of Secure Information Systems. J. UCS 18(12): 1608-1627 (2012)

Xiaodong Lin, Jianwei Liu, Stefanos Gritzalis: Security and privacy in emerging information technologies. Security and Communication Networks 5(1): 1-2 (2012)

Dimitrios Damopoulos, Sofia-Anna Menesidou, Georgios Kambourakis, Maria Papadaki, Nathan L. Clarke, Stefanos Gritzalis: Evaluation of anomaly-based IDS for mobile devices using machine learning classifiers. Security and Communication Networks 5(1): 3-14 (2012)

Alexandros Tsakountakis, Georgios Kambourakis, Stefanos Gritzalis: SIPA: generic and secure accounting for SIP. Security and Communication Networks 5(9): 1006-1027 (2012)

Panagiotis Rizomiliotis, Stefanos Gritzalis: GHB #: A Provably Secure HB-Like Lightweight Authentication Protocol. ACNS 2012: 489-506

Maria Eleni Skarkala, Manolis Maragoudakis, Stefanos Gritzalis, Lilian Mitrou, Hannu Toivonen, Pirjo Moen: Privacy Preservation by k-Anonymization of Weighted Social Networks. ASONAM 2012: 423-428

Christos Kalloniatis, Petros Belsis, Evangelia Kavakli, Stefanos Gritzalis: Applying Soft Computing Technologies for Implementing Privacy-Aware Systems. CAiSE Workshops 2012: 31-45

Petros Belsis, Stefanos Gritzalis, Catherine Marinagi, Christos Skourlas, Dimitris Vassis: Secure Wireless Infrastructures and Mobile Learning for Deaf and Hard-of-Hearing Students. Panhellenic Conference on Informatics 2012: 369-374

Shiguo Lian, Stefanos Gritzalis, Nadia Nedjah, Iuon-Chang Lin: Special issue on soft computing for information system security. Appl. Soft Comput. 11(7): 4257-4259 (2011)

Christos Kalloniatis, Petros Belsis, Stefanos Gritzalis: A soft computing approach for privacy requirements engineering: The PriS framework. Appl. Soft Comput. 11(7): 4341-4348 (2011)

Georgios Kambourakis, Constantinos Kolias, Stefanos Gritzalis, Jong Hyuk Park: DoS attacks exploiting signaling in UMTS and IMS. Computer Communications 34(3): 226-235 (2011)

Fernando Pereñiguez-Garcia, Rafael Marín López, Georgios Kambourakis, Stefanos Gritzalis, Antonio F. Gómez-Skarmeta: PrivaKERB: A user privacy framework for Kerberos. Computers & Security 30(6-7): 446-463 (2011)

Eleni Klaoudatou, Elisavet Konstantinou, Georgios Kambourakis, Stefanos Gritzalis: A Survey on Cluster-Based Group Key Agreement Protocols for WSNs. IEEE Communications Surveys and Tutorials 13(3): 429-442 (2011)

Giorgos Karopoulos, Georgios Kambourakis, Stefanos Gritzalis: PrivaSIP: Ad-hoc identity privacy in SIP. Computer Standards & Interfaces 33(3): 301-314 (2011)

Georgia Frantzeskou, Stephen G. MacDonell, Efstathios Stamatatos, Stelios Georgiou, Stefanos Gritzalis: The significance of user-defined identifiers in Java source code authorship identification. Comput. Syst. Sci. Eng. 26(2) (2011)

Petros Belsis, Christos Skourlas, Stefanos Gritzalis: Secure Electronic Healthcare Records Management in Wireless Environments. JITR 4(4): 1-17 (2011)

Shiguo Lian, Zhu Li, Stefanos Gritzalis, Xi Chen: Guest Editorial. Journal of Multimedia 6(4): 317-319 (2011)

Xiangyang Luo, Fenlin Liu, Shiguo Lian, Chunfang Yang, Stefanos Gritzalis: On the Typical Statistic Features for Image Blind Steganalysis. IEEE Journal on Selected Areas in Communications 29(7): 1404-1422 (2011)

Annie I. Antón, Travis D. Breaux, Stefanos Gritzalis, John Mylopoulos: Digital privacy: theory, policies and technologies. Requir. Eng. 16(1): 1-2 (2011)

Jong Hyuk Park, Stefanos Gritzalis, Hai Jin, Jenlong Wang: Network security and digital forensics in next generation communications. Wireless Communications and Mobile Computing 11(2): 143-145 (2011)

Panagiotis Rizomiliotis, Evangelos Rekleitis, Stefanos Gritzalis: Designing secure RFID authentication protocols is (still) a non-trivial task. NSS 2011: 73-80

Dimitrios Damopoulos, Georgios Kambourakis, Stefanos Gritzalis: iSAM: An iPhone Stealth Airborne Malware. SEC 2011: 17-28

Maria Eleni Skarkala, Manolis Maragoudakis, Stefanos Gritzalis, Lilian Mitrou: Privacy Preserving Tree Augmented Naïve Bayesian Multi-party Implementation on Horizontally Partitioned Databases. TrustBus 2011: 62-73

Georgios Kambourakis, Elisavet Konstantinou, Stefanos Gritzalis: Revisiting WiMAX MBS security. Computers & Mathematics with Applications 60(2): 217-223 (2010)

Chang Wen Chen, Stefanos Gritzalis, Pascal Lorenz, Shiguo Lian: Special issue on multimedia networking and security in convergent networks. Computer Communications 33(14): 1575-1577 (2010)

Fernando Pereñiguez-Garcia, Georgios Kambourakis, Rafael Marín López, Stefanos Gritzalis, Antonio F. Gómez-Skarmeta: Privacy-enhanced fast re-authentication for EAP-based next generation network. Computer Communications 33(14): 1682-1694 (2010)

Bhavani M. Thuraisingham, Stefanos Gritzalis: Information and communications security, privacy and trust: Standards and regulations. Computer Standards & Interfaces 32(5-6): 229 (2010)

Giorgos Karopoulos, Georgios Kambourakis, Stefanos Gritzalis, Elisavet Konstantinou: A framework for identity privacy in SIP. J. Network and Computer Applications 33(1): 16-28 (2010)

Anelia Mitseva, Efthimia Aivaloglou, Maria Marchitti, Neeli Rashmi Prasad, Charalabos Skianis, Stefanos Gritzalis, Adrian Waller, Timothy Baugé, Sarah Pennington: Towards adaptive security for convergent wireless sensor networks in beyond 3G environments. Wireless Communications and Mobile Computing 10(9): 1193-1207 (2010)

Efthimia Aivaloglou, Stefanos Gritzalis: Hybrid trust and reputation management for sensor networks. Wireless Networks 16(5): 1493-1510 (2010)

Prokopios Drogkaris, Stefanos Gritzalis, Costas Lambrinoudakis: Transforming the Greek e-Government Environment towards the e-Gov 2.0 Era. EGOVIS 2010: 142-149

Prokopios Drogkaris, Stefanos Gritzalis: Attaching Multiple Personal Identifiers in X.509 Digital Certificates. EuroPKI 2010: 171-177

Giles Hogben, Stefanos Gritzalis: IS'10 - PC Co-chairs Message. OTM Conferences (1) 2010: 582

Evangelos Rekleitis, Panagiotis Rizomiliotis, Stefanos Gritzalis: An Agent Based Back-End RFID Tag Management System. TrustBus 2010: 165-176

Alexandros Tsakountakis, Georgios Kambourakis, Stefanos Gritzalis: A generic accounting scheme for next generation networks. Computer Networks 53(14): 2408-2426 (2009)

Emmanouil Magkos, Manolis Maragoudakis, Vassilios Chrissikopoulos, Stefanos Gritzalis: Accurate and large-scale privacy-preserving data mining using the election paradigm. Data Knowl. Eng. 68(11): 1224-1236 (2009)

Panagiotis Rizomiliotis, Evangelos Rekleitis, Stefanos Gritzalis: Security analysis of the song-mitchell authentication protocol for low-cost RFID tags. IEEE Communications Letters 13(4): 274-276 (2009)

Maria Karyda, Stefanos Gritzalis, Jong Hyuk Park, Spyros Kokolakis: Privacy and fair information practices in ubiquitous environments: Research challenges and future directions. Internet Research 19(2): 194-208 (2009)

Petros Belsis, Kostas Fragos, Stefanos Gritzalis, Christos Skourlas: Applying effective feature selection techniques with hierarchical mixtures of experts for spam classification. Journal of Computer Security 17(3): 239-268 (2009)

Lambros Boukas, Georgios Kambourakis, Stefanos Gritzalis: Pandora: An SMS-oriented m-informational system for educational realms. J. Network and Computer Applications 32(3): 684-702 (2009)

Shiguo Lian, Yan Zhang, Stefanos Gritzalis, Yu Chen: Multimedia Security in Communication (MUSIC). J. UCS 15(2): 398-400 (2009)

Byoung-Soo Koh, Mieso K. Denko, Stefanos Gritzalis, Ching-Hsien Hsu: Data Security and Privacy Protection in Pervasive Computing Environments. J. UCS 15(5): 967-969 (2009)

Aggeliki Tsohou, Spyros Kokolakis, Costas Lambrinoudakis, Stefanos Gritzalis: Information Systems Security Management: A Review and a Classification of the ISO Standards. e-Democracy 2009: 220-235

Efthimia Aivaloglou, Stefanos Gritzalis: Trust-Based Data Disclosure in Sensor Networks. ICC 2009: 1-6

Dimitris Geneiatakis, Costas Lambrinoudakis, Stefanos Gritzalis: A Hierarchical Model for Cross-Domain Communication of Health Care Units. NSS 2009: 123-129

Stefanos Gritzalis, Xueqi Cheng: IS 2009 - PC Co-chairs' Message. OTM Conferences (2) 2009: 797

Christos Kalloniatis, Evangelia Kavakli, Stefanos Gritzalis: Methods for Designing Privacy Aware Information Systems: A Review. Panhellenic Conference on Informatics 2009: 185-194

Dimitris Vassis, Petros Belsis, Christos Skourlas, Stefanos Gritzalis: End to end secure communication in ad-hoc assistive medical environments using secure paths. PETRA 2009

Georgios Kambourakis, Constantinos Kolias, Stefanos Gritzalis, Jong Hyuk Park: Signaling-Oriented DoS Attacks in UMTS Networks. ISA 2009: 280-289

Eleni Klaoudatou, Elisavet Konstantinou, Georgios Kambourakis, Stefanos Gritzalis: A Cluster-Based Framework for the Security of Medical Sensor Environments. TrustBus 2009: 52-62

Giannakis Antoniou, Leon Sterling, Stefanos Gritzalis, Parampalli Udaya: Privacy and forensics investigation process: The ERPINA protocol. Computer Standards & Interfaces 30(4): 229-236 (2008)

Theodoros Balopoulos, Stefanos Gritzalis, Sokratis K. Katsikas: Specifying and implementing privacy-preserving cryptographic protocols. Int. J. Inf. Sec. 7(6): 395-420 (2008)

Petros Belsis, Kostas Fragos, Stefanos Gritzalis, Christos Skourlas: Applying effective feature selection techniques with hierarchical mixtures of experts for spam classification. Journal of Computer Security 16(6): 761-790 (2008)

Georgia Frantzeskou, Stephen G. MacDonell, Efstathios Stamatatos, Stefanos Gritzalis: Examining the significance of high-level programming features in source code author classification. Journal of Systems and Software 81(3): 447-460 (2008)

Christos Kalloniatis, Evangelia Kavakli, Stefanos Gritzalis: Addressing privacy requirements in system design: the PriS method. Requir. Eng. 13(3): 241-255 (2008)

Demosthenes Vouyioukas, Georgios Kambourakis, Ilias Maglogiannis, Angelos N. Rouskas, Constantinos Kolias, Stefanos Gritzalis: Enabling the provision of secure web based m-health services utilizing XML based security models. Security and Communication Networks 1(5): 375-388 (2008)

Eleni Klaoudatou, Elisavet Konstantinou, Georgios Kambourakis, Stefanos Gritzalis: Clustering Oriented Architectures in Medical Sensor Environments. ARES 2008: 929-934

Athanassios N. Yannacopoulos, Costas Lambrinoudakis, Stefanos Gritzalis, Stylianos Z. Xanthopoulos, Sokratis K. Katsikas: Modeling Privacy Insurance Contracts and Their Utilization in Risk Management for ICT Firms. ESORICS 2008: 207-222

Giorgos Karopoulos, Georgios Kambourakis, Stefanos Gritzalis: Caller identity privacy in SIP heterogeneous realms: A practical solution. ISCC 2008: 37-43

Giorgos Karopoulos, Georgios Kambourakis, Stefanos Gritzalis: Privacy Protection in Context Transfer Protocol. PDP 2008: 590-596

Emmanouil Magkos, Manolis Maragoudakis, Vassilios Chrissikopoulos, Stefanos Gritzalis: Accuracy in Privacy-Preserving Data Mining Using the Paradigm of Cryptographic Elections. Privacy in Statistical Databases 2008: 284-297

Alexandros Tsakountakis, Georgios Kambourakis, Stefanos Gritzalis: A new Accounting Mechanism for Modern and Future AAA Services. SEC 2008: 693-697

Peter Mueller, Kaisa Nyberg, Stefanos Gritzalis, Costas Lambrinoudakis: Message from the SecPri Workshop Organizing Technical Co-chairs. WiMob 2008

Georgios Kambourakis, Denise-Penelope N. Kontoni, Angelos N. Rouskas, Stefanos Gritzalis: A PKI approach for deploying modern secure distributed e-learning and m-learning environments. Computers & Education 48(1): 1-16 (2007)

Dimitris Geneiatakis, Georgios Kambourakis, Costas Lambrinoudakis, Tasos Dagiuklas, Stefanos Gritzalis: A framework for protecting a SIP-based infrastructure against malformed message attacks. Computer Networks 51(10): 2580-2593 (2007)

Giorgos Karopoulos, Georgios Kambourakis, Stefanos Gritzalis: Survey of secure handoff optimization schemes for multimedia services over all-IP wireless heterogeneous networks. IEEE Communications Surveys and Tutorials 9(1-4): 18-28 (2007)

Petros Belsis, Stefanos Gritzalis, Sokratis K. Katsikas: Partial and Fuzzy Constraint Satisfaction to Support Coalition Formation. Electr. Notes Theor. Comput. Sci. 179: 75-86 (2007)

Georgia Frantzeskou, Efstathios Stamatatos, Stefanos Gritzalis, Carole E. Chaski, Blake Stephen Howald: Identifying Authorship by Byte-Level N-Grams: The Source Code Author Profile (SCAP) Method. IJDE 6(1) (2007)

Meletis A. Belsis, Ashish N. Dwivedi, Stefanos Gritzalis, Rajeev K. Bali, Raouf N. Gorgui-Naguib: Providing secure mAccess to medical information. IJEH 3(1): 51-71 (2007)

Stefanos Gritzalis, Athanassios N. Yannacopoulos, Costas Lambrinoudakis, Petros Hatzopoulos, Sokratis K. Katsikas: A probabilistic model for optimal insurance contracts against security risks and privacy violation in IT outsourcing environments. Int. J. Inf. Sec. 6(4): 197-211 (2007)

Michael Backes, Stefanos Gritzalis, Bart Preneel: Preface. Int. J. Inf. Sec. 6(6): 359-360 (2007)

Jose Antonio Onieva, Javier Lopez, Rodrigo Roman, Jianying Zhou, Stefanos Gritzalis: Integration of non-repudiation services in mobile DRM scenarios. Telecommunication Systems 35(3-4): 161-176 (2007)

Efthimia Aivaloglou, Stefanos Gritzalis, Charalabos Skianis: Towards a flexible trust establishment framework for sensor networks. Telecommunication Systems 35(3-4): 207-213 (2007)

Georgios Kambourakis, Eleni Klaoudatou, Stefanos Gritzalis: Securing Medical Sensor Environments: The CodeBlue Framework Case. ARES 2007: 637-643

Christos Kalloniatis, Evangelia Kavakli, Stefanos Gritzalis: Using Privacy Process Patterns for Incorporating Privacy Requirements into the System Design Process. ARES 2007: 1009-1017

Petros Belsis, Stefanos Gritzalis, Christos Skourlas, Vassilis Tsoukalas: Managing Uncertainty in Access Control Decisions in Distributed Autonomous Collaborative Environments. ASIAN 2007: 261-267

Georgios Kambourakis, Tassos Moschos, Dimitris Geneiatakis, Stefanos Gritzalis: Detecting DNS Amplification Attacks. CRITIS 2007: 185-196

Maria Karyda, Stefanos Gritzalis, Jong Hyuk Park: A Critical Approach to Privacy Research in Ubiquitous Environments - Issues and Underlying Assumptions. EUC Workshops 2007: 12-21

Giorgos Karopoulos, Georgios Kambourakis, Stefanos Gritzalis: Two privacy enhanced context transfer schemes. Q2SWinet 2007: 172-175

Alexandros Tsakountakis, Georgios Kambourakis, Stefanos Gritzalis: On RSN-Oriented Wireless Intrusion Detection. OTM Conferences (2) 2007: 1601-1615

Petros Belsis, Stefanos Gritzalis, Christos Skourlas, Vassilis Tsoukalas: Design and Implementation of Distributed Access Control Infrastructures for Federations of Autonomous Domains. TrustBus 2007: 125-134

Georgios Kambourakis, Stefanos Gritzalis: On Device Authentication in Wireless Networks: Present Issues and Future Challenges. TrustBus 2007: 135-144

Georgios Kambourakis, Angelos N. Rouskas, Stefanos Gritzalis, Dimitris Geneiatakis: Support of subscribers' certificates in a hybrid WLAN-3G environment. Computer Networks 50(11): 1843-1859 (2006)

Dimitris Fotakis, Stefanos Gritzalis: Efficient heuristic algorithms for correcting the Cascade Vulnerability Problem for interconnected networks. Computer Communications 29(11): 2109-2122 (2006)

Dimitris Geneiatakis, Tasos Dagiuklas, Georgios Kambourakis, Costas Lambrinoudakis, Stefanos Gritzalis, Sven Ehlert, Dorgham Sisalem: Survey of security vulnerabilities in session initiation protocol. IEEE Communications Surveys and Tutorials 8(1-4): 68-81 (2006)

Stefanos Gritzalis: Public Key Infrastructure: Research and Applications. Int. J. Inf. Sec. 5(1): 1-2 (2006)

Evangelia Kavakli, Christos Kalloniatis, Pericles Loucopoulos, Stefanos Gritzalis: Incorporating privacy requirements into the system design process: The PriS conceptual framework. Internet Research 16(2): 140-158 (2006)

Stefanos Gritzalis: Developing a culture of privacy in the Global Village. Telematics and Informatics 23(3): 157-163 (2006)

Maria Karyda, Theodoros Balopoulos, Lazaros Gymnopoulos, Spyros Kokolakis, Costas Lambrinoudakis, Stefanos Gritzalis, Stelios Dritsas: An ontology for secure e-government applications. ARES 2006: 1033-1037

Efthimia Aivaloglou, Stefanos Gritzalis, Charalabos Skianis: Trust Establishment in Ad Hoc and Sensor Networks. CRITIS 2006: 179-194

Efthimia Aivaloglou, Stefanos Gritzalis, Charalabos Skianis: Requirements and Challenges in the Design of Privacy-aware Sensor Networks. GLOBECOM 2006

Georgia Frantzeskou, Efstathios Stamatatos, Stefanos Gritzalis, Sokratis K. Katsikas: Effective identification of source code authors using byte-level information. ICSE 2006: 893-896

Petros Belsis, Stefanos Gritzalis, Sokratis K. Katsikas: Optimized Multi-Domain Secure Interoperation using Soft Constraints. AIAI 2006: 78-85

Georgia Frantzeskou, Efstathios Stamatatos, Stefanos Gritzalis, Sokratis K. Katsikas: Source Code Author Identification Based on N-gram Author Profiles. AIAI 2006: 508-515

Petros Belsis, Kostas Fragos, Stefanos Gritzalis, Christos Skourlas: SF-HME system: a hierarchical mixtures-of-experts classification system for spam filtering. SAC 2006: 354-360

Theodoros Balopoulos, Lazaros Gymnopoulos, Maria Karyda, Spyros Kokolakis, Stefanos Gritzalis, Sokratis K. Katsikas: A Framework for Exploiting Security Expertise in Application Development. TrustBus 2006: 62-70

Sokratis K. Katsikas, Javier Lopez, Michael Backes, Stefanos Gritzalis, Bart Preneel (Eds.): Information Security, 9th International Conference, ISC 2006, Samos Island, Greece, August 30 - September 2, 2006, Proceedings. Lecture Notes in Computer Science 4176, Springer 2006, isbn 3-540-38341-7

Giorgos Gousios, Efthimia Aivaloglou, Stefanos Gritzalis: Distributed component architectures security issues. Computer Standards & Interfaces 27(3): 269-284 (2005)

Theodoros Balopoulos, Stefanos Gritzalis, Sokratis K. Katsikas: Specifying Privacy-Preserving Protocols in Typed MSR. Computer Standards & Interfaces 27(5): 501-512 (2005)

Costas Lambrinoudakis, Stefanos Gritzalis, Petros Hatzopoulos, Athanassios N. Yannacopoulos, Sokratis K. Katsikas: A formal model for pricing information systems insurance contracts. Computer Standards & Interfaces 27(5): 521-532 (2005)

Apostolos Malatras, George Pavlou, Petros Belsis, Stefanos Gritzalis, Christos Skourlas, Ioannis Chalaris: Deploying pervasive secure knowledge management infrastructures. Int. J. Pervasive Computing and Communications 1(4): 265-276 (2005)

Stefanos Gritzalis: A good-practice guidance on the use of PKI services in the public sector of the European Union member states. Inf. Manag. Comput. Security 13(5): 379-398 (2005)

Dimitrios Lekkas, Stefanos Gritzalis, Lilian Mitrou: Withdrawing a declaration of will: Towards a framework for digital signature revocation. Internet Research 15(4): 400-420 (2005)

Lazaros Gymnopoulos, Vassilis Tsoumas, Yannis Soupionis, Stefanos Gritzalis: A generic Grid security policy reconciliation framework. Internet Research 15(5): 508-517 (2005)

Theodoros Balopoulos, Stelios Dritsas, Lazaros Gymnopoulos, Maria Karyda, Spyros Kokolakis, Stefanos Gritzalis: Incorporating Security Requirements Into the Software Development Process. ECIW 2005: 21-28

Lazaros Gymnopoulos, Stefanos Gritzalis: Introducing Ontology-based Security Policy Management in the Grid. ECIW 2005: 107-116

Stelios Dritsas, Lazaros Gymnopoulos, Maria Karyda, Theodoros Balopoulos, Spyros Kokolakis, Costas Lambrinoudakis, Stefanos Gritzalis: Employing Ontologies for the Development of Security Critical Applications. I3E 2005: 187-201

Georgia Frantzeskou, Efstathios Stamatatos, Stefanos Gritzalis: Supporting the cybercrime investigation process: Effective discrimination of source code authors based on byte-level information. ICETE 2005: 283-290

Petros Belsis, Apostolos Malatras, Stefanos Gritzalis, Christos Skourlas, Ioannis Chalaris: Pervasive Secure Electronic Healthcare Records Management. IWUC 2005: 101-109

Meletis A. Belsis, Alkis Simitsis, Stefanos Gritzalis: Workflow Based Security Incident Management. Panhellenic Conference on Informatics 2005: 684-694

Petros Belsis, Stefanos Gritzalis, Apostolos Malatras, Christos Skourlas, Ioannis Chalaris: Sec-Shield: Security Preserved Distributed Knowledge Management Between Autonomous Domains. TrustBus 2005: 10-19

Theodoros Balopoulos, Stefanos Gritzalis, Sokratis K. Katsikas: Specifying electronic voting protocols in typed MSR. WPES 2005: 35-39

Stefanos Gritzalis: Enhancing Web privacy and anonymity in the digital era. Inf. Manag. Comput. Security 12(3): 255-287 (2004)

George Angelis, Stefanos Gritzalis, Costas Lambrinoudakis: Mechanisms for controlling access in the global grid environment. Internet Research 14(5): 347-352 (2004)

Georgios Kambourakis, Angelos N. Rouskas, Stefanos Gritzalis: Experimental Analysis of an SSL-Based AKA Mechanism in 3G-and-Beyond Wireless Networks. Wireless Personal Communications 29(3-4): 303-321 (2004)

Christos Kalloniatis, Evangelia Kavakli, Stefanos Gritzalis: Security Requirements Engineering for e-Government Applications: Analysis of Current Frameworks. EGOV 2004: 66-71

Konstantina Kabouraki, Stefanos Gritzalis, Konstantinos Moulinos: Towards a Privacy Audit Programmes Comparison Framework. EGOV 2004: 328-331

Petros Belsis, Stefanos Gritzalis, Christos Skourlas, Ioannis Drakopoulos: Implementing Knowledge Management Techniques for Security Purposes. ICEIS (2) 2004: 535-540

Georgia Frantzeskou, Stefanos Gritzalis: Source Code Authorship Analysis for Supporting the Cybercrime Investigation Process. ICETE (2) 2004: 85-92

Georgios Kambourakis, Angelos N. Rouskas, Stefanos Gritzalis: Inter/Intra Core Network Security with PKI for 3G-and-Beyond Systems. NETWORKING 2004: 13-24

Petros Belsis, Stefanos Gritzalis, Apostolos Malatras, Christos Skourlas, Ioannis Chalaris: Enhancing Knowledge Management Through the Use of GIS and Multimedia. PAKM 2004: 319-329

Georgios Kambourakis, Angelos N. Rouskas, Stefanos Gritzalis: Delivering Attribute Certificates over GPRS. SAC 2004: 1166-1170

Sokratis K. Katsikas, Stefanos Gritzalis, Javier Lopez (Eds.): Public Key Infrastructure, First European PKIWorkshop: Research and Applications, EuroPKI 2004, Samos Island, Greece, June 25-26, 2004, Proceedings. Lecture Notes in Computer Science 3093, Springer 2004, isbn 3-540-22216-2

John Iliadis, Stefanos Gritzalis, Diomidis Spinellis, Danny De Cock, Bart Preneel, Dimitris Gritzalis: Towards a framework for evaluating certificate status information mechanisms. Computer Communications 26(16): 1839-1850 (2003)

John Iliadis, Stefanos Gritzalis, Dimitris Gritzalis: ADoCSI: towards a transparent mechanism for disseminating Certificate Status Information. Computer Communications 26(16): 1851-1862 (2003)

Costas Lambrinoudakis, Stefanos Gritzalis, Fredj Dridi, Günther Pernul: Security requirements for e-government services: a methodological approach for developing a common PKI-based security policy. Computer Communications 26(16): 1873-1883 (2003)

Theodoros Balopoulos, Stefanos Gritzalis: Towards a Logic of Privacy-Preserving Selective Disclosure Credential Protocols. DEXA Workshops 2003: 396-401

John Argyrakis, Stefanos Gritzalis, Chris Kioulafas: Privacy Enhancing Technologies: A Review. EGOV 2003: 282-287

Lazaros Gymnopoulos, Stelios Dritsas, Stefanos Gritzalis, Costas Lambrinoudakis: GRID Security Review. MMM-ACNS 2003: 100-111

George Angelis, Stefanos Gritzalis, Costas Lambrinoudakis: Security Policy Configuration Issues in Grid Computing Environments. SAFECOMP 2003: 331-341

Georgios Kambourakis, Angelos N. Rouskas, Stefanos Gritzalis: Introducing PKI to Enhance Security in Future Mobile Networks. SEC 2003: 109-120

Dimitrios Lekkas, Stefanos Gritzalis, Sokratis K. Katsikas: Quality assured trusted third parties for deploying secure internet-based healthcare applications. I. J. Medical Informatics 65(2): 79-96 (2002)

Georgios Kambourakis, Angelos N. Rouskas, Stefanos Gritzalis: Using SSL/TLS in authentication and key agreement procedures of future mobile networks. MWCN 2002: 152-156

Stefanos Gritzalis, Costas Lambrinoudakis: Security Requirements of e-Government Services: An Organizational Framework. PDPTA 2002: 127-131

Stefanos Gritzalis, Dimitris Gritzalis: A digital seal solution for deploying trust on commercial transactions. Inf. Manag. Comput. Security 9(2): 71-79 (2001)

Nikitas Nikitakos, Stefanos Gritzalis: Risk management for new information technology insertion in a shipping company. Operational Research 1(1): 7-16 (2001)

Dimitrios Lekkas, Stefanos Gritzalis, Sokratis K. Katsikas: Towards an ISO-9000 compliant certification service provider. HERCMA 2001: 390-397

Stefanos Gritzalis, Sokratis K. Katsikas, Dimitrios Lekkas, Konstantinos Moulinos, Eleni Polydoro: Securing The Electronic Market: The KEYSTONE Public Key Infrastructure Architecture. Computers & Security 19(8): 731-746 (2000)

Stefanos Gritzalis, John Iliadis, Spyros Oikonomopoulos: Distributed component software security issues on deploying a secure electronic marketplace. Inf. Manag. Comput. Security 8(1): 5-13 (2000)

Stefanos Gritzalis, Diomidis Spinellis, Panagiotis Georgiadis: Security protocols over open networks and distributed systems: formal methods for their analysis, design, and verification. Computer Communications 22(8): 697-709 (1999)

Diomidis Spinellis, Stefanos Gritzalis, John Iliadis, Dimitris Gritzalis, Sokratis K. Katsikas: Trusted third party services for deploying secure telemedical applications over the WWW. Computers & Security 18(7): 627-639 (1999)

Diomidis Spinellis, Spyros Kokolakis, Stefanos Gritzalis: Security requirements, risks and recommendations for small enterprise and home-office environments. Inf. Manag. Comput. Security 7(3): 121-128 (1999)

Stefanos Gritzalis, George Aggelis, Diomidis Spinellis: Architectures for secure portable executable content. Internet Research 9(1): 16-24 (1999)

Stefanos Gritzalis, George Aggelis: Security Issues Surrounding Programming Languages for Mobile Code: Java vs. Safe-Tcl. Operating Systems Review 32(2): 16-32 (1998)

Stefanos Gritzalis, John Iliadis: Addressing Security Issues in Programming Languages for Mobile Code. DEXA Workshop 1998: 288-293

John Iliadis, Stefanos Gritzalis, V. Oikonomou: Towards Secure Downloadable Executable Content: The Java Paradigm. SAFECOMP 1998: 117-127

Nikitas Nikitakos, Stefanos Gritzalis, Panagiotis Georgiadis: Security profile for interconnected open distributed systems with varying vulnerability. SEC 1996: 428-437

Dimitris Gritzalis, Sokratis K. Katsikas, Stefanos Gritzalis: A zero knowledge probabilistic login protocol. Computers & Security 11(8): 733-745 (1992)