@inproceedings{TwarokLangendoerferKoenig, author = {Twarok, Sven and Langend{\"o}rfer, Peter and K{\"o}nig, Hartmut}, title = {Automated Derivation of ILP Implementations from SDL Specifications}, series = {Formal techniques for networked and distributed systems, FORTE 2001, IFIP TC6/WG6.1 - 21st International Conference on Formal Techniques for Networked and Distributed Systems, August 28 - 31, 2001, Cheju Island, Korea}, booktitle = {Formal techniques for networked and distributed systems, FORTE 2001, IFIP TC6/WG6.1 - 21st International Conference on Formal Techniques for Networked and Distributed Systems, August 28 - 31, 2001, Cheju Island, Korea}, editor = {Kim, Myungchul}, publisher = {Kluwer}, address = {Boston [u.a.]}, isbn = {0-7923-7470-3}, pages = {3 -- 18}, language = {en} } @inproceedings{Koenig, author = {K{\"o}nig, Hartmut}, title = {Testing of Communicating Systems XIV (TestCom 2002): Application to Internet Technologies and Services}, language = {en} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {Ein Ansatz f{\"u}r eine effiziente Schl{\"u}sselverteilung f{\"u}r kleine geschlossene Peer-Gruppen}, language = {de} } @inproceedings{RakelKoenigSchmitt, author = {Rakel, Daniel and K{\"o}nig, Hartmut and Schmitt, Jens B.}, title = {Effiziente Medienstromverteilung in geschlossenen Peer-to-Peer-Videokonferenzsystemen}, series = {Kommunikation in verteilten Systemen, Kurzbeitr{\"a}ge und Workshop der 14. GI/ITG-Fachtagung, 28. Februar - 3. M{\"a}rz 2005 in Kaiserslautern}, booktitle = {Kommunikation in verteilten Systemen, Kurzbeitr{\"a}ge und Workshop der 14. GI/ITG-Fachtagung, 28. Februar - 3. M{\"a}rz 2005 in Kaiserslautern}, editor = {M{\"u}ller, Paul}, publisher = {Ges. f{\"u}r Informatik}, address = {Bonn}, isbn = {3-88579-390-3}, pages = {159 -- 162}, language = {de} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {Secure and Efficient Key Distribution for Collaborative Applications}, series = {2005 International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), 19 - 22 December 2005, San Jose, CA}, booktitle = {2005 International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), 19 - 22 December 2005, San Jose, CA}, publisher = {IEEE Operations Center}, address = {Piscataway, NJ}, isbn = {1-424-40030-9}, pages = {120 -- 130}, language = {en} } @inproceedings{Koenig, author = {K{\"o}nig, Hartmut}, title = {Peer-to-Peer Intrusion Detection Systeme f{\"u}r den Schutz sensibler IT-Infrastrukturen}, language = {de} } @inproceedings{Schmerl, author = {Schmerl, Sebastian}, title = {Ein Ansatz zur Virtualisierung der Analyse von Audit-Daten}, language = {de} } @inproceedings{LiuKoenig, author = {Liu, F. and K{\"o}nig, Hartmut}, title = {Designing Security Architecture for a P2P Video Conference System}, language = {en} } @inproceedings{SchmerlVogel, author = {Schmerl, Sebastian and Vogel, Michael}, title = {Efficient Analysis Distribution for Intrusion Detection}, series = {Proceedings of the NATO RTO Information Systems and Technology Panel (IST) Symposium on Information Assurance for Emerging and Future Military Systems, 2008, Ljubljana, Slovenia}, booktitle = {Proceedings of the NATO RTO Information Systems and Technology Panel (IST) Symposium on Information Assurance for Emerging and Future Military Systems, 2008, Ljubljana, Slovenia}, language = {en} } @inproceedings{SchmerlKoenigFlegeletal., author = {Schmerl, Sebastian and K{\"o}nig, Hartmut and Flegel, Ulrich and Meier, Michael and Rietz, Ren{\´e}}, title = {Systematic Signature Engineering by Re-use of Snort Signatures}, series = {Proceedings of the 24th International Annual Computer Security Applications Conference (ACSAC 2008), Anaheim, California, USA, December 2008}, booktitle = {Proceedings of the 24th International Annual Computer Security Applications Conference (ACSAC 2008), Anaheim, California, USA, December 2008}, pages = {23 -- 32}, language = {en} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {Security Considerations on Pervasive Real-time Collaboration}, series = {IEEE 6th International Conference on Mobile Adhoc and Sensor Systems, 2009, MASS '09, 12 - 15 Oct. 2009, Macau, China}, booktitle = {IEEE 6th International Conference on Mobile Adhoc and Sensor Systems, 2009, MASS '09, 12 - 15 Oct. 2009, Macau, China}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-424-45114-2}, pages = {722 -- 727}, language = {en} } @inproceedings{KaliappanKoenigSchmerletal., author = {Kaliappan, Prabhu Shankar and K{\"o}nig, Hartmut and Schmerl, Sebastian and Dong, Jin Song and Zhu, Huibiao}, title = {Model-Driven Protocol Design Based on Component Oriented Modeling}, series = {Formal methods and software engineering, proceedings 12th International Conference on Formal Engineering Methods, ICFEM 2010, Shanghai, China, November 17 - 19, 2010}, booktitle = {Formal methods and software engineering, proceedings 12th International Conference on Formal Engineering Methods, ICFEM 2010, Shanghai, China, November 17 - 19, 2010}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-642-16900-7}, pages = {613 -- 629}, language = {en} } @misc{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {A Survey of Video Encryption Algorithms}, language = {en} } @inproceedings{ZuehlkeKoenig, author = {Z{\"u}hlke, Mario and K{\"o}nig, Hartmut}, title = {Voting Based Bandwidth Management in Multiparty Video Conferences}, series = {Protocols and systems for interactive distributed multimedia, proceedings, Joint International Workshops on Interactive Distributed Multimedia Systems and Protocols for Multimedia Systems, IDMS PROMS 2002, Coimbra, Portugal, November 26 - 29, 2002}, booktitle = {Protocols and systems for interactive distributed multimedia, proceedings, Joint International Workshops on Interactive Distributed Multimedia Systems and Protocols for Multimedia Systems, IDMS PROMS 2002, Coimbra, Portugal, November 26 - 29, 2002}, editor = {Boavida, Fernando}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-00169-7}, language = {en} } @inproceedings{HolzMeierKoenig, author = {Holz, Thomas and Meier, Michael and K{\"o}nig, Hartmut}, title = {High-efficient intrusion detection infrastructure}, series = {Real time intrusion detection, papers presented at the RTO Information Systems Technology Panel (IST) Symposium, held in Estoril, Portugal, 27 - 28 May 2002}, booktitle = {Real time intrusion detection, papers presented at the RTO Information Systems Technology Panel (IST) Symposium, held in Estoril, Portugal, 27 - 28 May 2002}, publisher = {NATO Research and Technology Organisation}, address = {Neuilly-sur-Seine}, isbn = {92-837-0032-5}, pages = {14/1 -- 14/12}, language = {en} } @inproceedings{HolzMeierKoenig, author = {Holz, Thomas and Meier, Michael and K{\"o}nig, Hartmut}, title = {An Efficient Intrusion Detection System Design}, series = {Proceedings of the ISSA 2002 Information for Security for South-Africa 2nd Annual Conference, 10-12 July 2002, Misty Hills Country Hotel, Muldersdrift, Gauteng, South Africa}, booktitle = {Proceedings of the ISSA 2002 Information for Security for South-Africa 2nd Annual Conference, 10-12 July 2002, Misty Hills Country Hotel, Muldersdrift, Gauteng, South Africa}, pages = {12}, language = {en} } @article{HolzMeierKoenig, author = {Holz, Thomas and Meier, Michael and K{\"o}nig, Hartmut}, title = {Bausteine f{\"u}r effiziente Intrusion-Detection-Syteme}, language = {de} } @inproceedings{MeierBischofHolz, author = {Meier, Michael and Bischof, Niels and Holz, Thomas}, title = {SHEDEL - A Simple Hierarchical Event Description Language for Specifying Attack Signatures}, series = {Security in the information society, IFIP TC11 17th, International Conference on Information Security (SEC2002) May, 7 - 9, 2002, Cairo, Egypt}, booktitle = {Security in the information society, IFIP TC11 17th, International Conference on Information Security (SEC2002) May, 7 - 9, 2002, Cairo, Egypt}, publisher = {Kluwer}, address = {Boston [u.a.]}, isbn = {1-402-07030-6}, pages = {559 -- 571}, language = {en} } @inproceedings{OpitzMielkeKoenig, author = {Opitz, Alek and Mielke, Torsten and K{\"o}nig, Hartmut}, title = {Virtual Private Components}, language = {en} } @phdthesis{Zuehlke, author = {Z{\"u}hlke, Mario}, title = {Verteilt organisierte Mehrteilnehmer - Videokonferenzen f{\"u}r geschlossene Gruppen im Internet}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-000000540}, language = {de} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {A Novel Encryption Algorithm for High Resolution Video}, language = {en} } @inproceedings{OpitzKoenig, author = {Opitz, Alek and K{\"o}nig, Hartmut}, title = {Optimizing the Access to Read-Only Data in Grid Computing}, series = {Distributed applications and interoperable systems, 5th IFIP WG 6.1 International Conference, DAIS 2005, Athens, Greece, June 15-17, 2005, proceedings}, booktitle = {Distributed applications and interoperable systems, 5th IFIP WG 6.1 International Conference, DAIS 2005, Athens, Greece, June 15-17, 2005, proceedings}, editor = {Kutvonen, Lea}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-26262-8}, pages = {206 -- 219}, language = {en} } @incollection{HolzMeierKoenig, author = {Holz, Thomas and Meier, Michael and K{\"o}nig, Hartmut}, title = {High-Efficient Intrusion Detection Infrastructure}, language = {en} } @inproceedings{PopoviciZuehlkeMahlo, author = {Popovici, Eduard and Z{\"u}hlke, Mario and Mahlo, Ralf}, title = {BRAVIS - Ein Ansatz f{\"u}r geschlossene Mehrteilnehmer-Videokonferenzen im Internet}, language = {de} } @incollection{PopoviciZuehlkeMahlo, author = {Popovici, Eduard and Z{\"u}hlke, Mario and Mahlo, Ralf}, title = {Verteilte Mehrteilnehmer-Videokonferenzen im Internet}, language = {de} } @book{OPUS4-2327, title = {Detection of intrusions and malware \& vulnerability assessment : GI Special Interest SIDAR Workshop, DIMVA 2004, Dortmund, Germany, July 6 - 7, 2004 ; proceedings}, editor = {Flegel, Ulrich and Meier, Michael}, publisher = {Bonn : Ges. f{\"u}r Informatik}, isbn = {3-88579-375-X}, language = {de} } @inproceedings{Meier, author = {Meier, Michael}, title = {A model for the semantics of attack signatures in misuse detection systems}, isbn = {3-540-23208-7}, language = {en} } @book{Koenig, author = {K{\"o}nig, Hartmut}, title = {Protocol Engineering : Prinzip, Beschreibung und Entwicklung von Kommunikationsprotokollen}, publisher = {Stuttgart [u.a.] : Teubner}, isbn = {3-519-00454-2}, language = {de} } @misc{MeierFlegelKoenig, author = {Meier, Michael and Flegel, Ulrich and K{\"o}nig, Hartmut}, title = {Reactive Security - Intrusion Detection, Honeypots, and Vulnerability Assessment}, series = {Praxis der Informationsverarbeitung und Kommunikation}, volume = {27}, journal = {Praxis der Informationsverarbeitung und Kommunikation}, number = {4}, pages = {186 -- 187}, language = {de} } @inproceedings{SchmerlMeierKoenigetal., author = {Schmerl, Sebastian and Meier, Michael and K{\"o}nig, Hartmut and Flegel, Ulrich}, title = {Simplifying Signature Engineering by Reuse}, series = {Emerging trends in information and communication security, ETRICS 2006, Freiburg, Germany, June 6 - 9, 2006 Conference, Freiburg, Germany, June 2006}, booktitle = {Emerging trends in information and communication security, ETRICS 2006, Freiburg, Germany, June 6 - 9, 2006 Conference, Freiburg, Germany, June 2006}, editor = {M{\"u}ller, G{\"u}nter}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-34640-6}, pages = {436 -- 450}, language = {en} } @inproceedings{Schmerl, author = {Schmerl, Sebastian}, title = {Validierung von Signaturen - Testmethoden zur Feststellung von Korrektheit und Pr{\"a}zision}, editor = {Flegel, Ulrich}, language = {de} } @inproceedings{SchmerlKoenig, author = {Schmerl, Sebastian and K{\"o}nig, Hartmut}, title = {Towards Systematic Signature Testing}, series = {19th IFIP TC6/WG6.1 International Conference, TestCom 2007, 7th International Workshop, FATES 2007, Tallin, Estonia, June 26-29, 2007, Proceedings}, booktitle = {19th IFIP TC6/WG6.1 International Conference, TestCom 2007, 7th International Workshop, FATES 2007, Tallin, Estonia, June 26-29, 2007, Proceedings}, editor = {Petrenko, Alexandre}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-73065-6}, pages = {276 -- 291}, language = {en} } @phdthesis{Opitz, author = {Opitz, Alek}, title = {Prognose freier Rechenkapazit{\"a}ten zur besseren Nutzung von Grid-Ressourcen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-9527}, language = {de} } @inproceedings{OpitzKoenig, author = {Opitz, Alek and K{\"o}nig, Hartmut}, title = {Predicting Free Computing Capacities on Individual Machines}, language = {en} } @inproceedings{OPUS4-4430, title = {Perspectives Workshop: Network Attack Detection and Defense}, series = {Dagstuhl Seminar 08102, 02.03. - 06.03.2008}, booktitle = {Dagstuhl Seminar 08102, 02.03. - 06.03.2008}, editor = {Carle, Georg and Dressler, Falko and Kemmerer, Richard A. and K{\"o}nig, Hartmut and Kruegel, Christopher and Laskov, Pavel}, issn = {1862-4405}, language = {en} } @misc{VogelSchmerlKoenig, author = {Vogel, Michael and Schmerl, Sebastian and K{\"o}nig, Hartmut}, title = {Analyseverlagerung in P2P-Overlaynetzen}, language = {de} } @inproceedings{KaliappanKoenigKaliappan, author = {Kaliappan, Prabhu Shankar and K{\"o}nig, Hartmut and Kaliappan, V. K.}, title = {Designing and Verifying Communication Protocols using Model Driven Architecture and Spin Model Checker}, language = {en} } @misc{CarleDresslerKemmereretal., author = {Carle, Georg and Dressler, Falko and Kemmerer, Richard A. and K{\"o}nig, Hartmut and Kruegel, Christopher and Laskov, Pavel}, title = {Network attack detection and defense - Manifesto of the Dagstuhl Perspective Workshop}, language = {en} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {A Simple Balanced Password-Authenticated Key Agreement Protocol}, series = {Proceedings, the 10th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom 2011, ICESS 2011, FCST 2011, Conferences, Symposiums and Workshops, 16-18 November 2011, Changsha, Hunan Province, China}, booktitle = {Proceedings, the 10th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom 2011, ICESS 2011, FCST 2011, Conferences, Symposiums and Workshops, 16-18 November 2011, Changsha, Hunan Province, China}, publisher = {IEEE Computer Society}, address = {Los Alamitos, Calif.}, isbn = {978-0-7695-4600-1}, pages = {403 -- 408}, language = {en} } @misc{KirscheDreissigKopschetal., author = {Kirsche, Michael and Dreissig, Matthias and Kopsch, Ralf and G{\"a}bler, Jan and Klauck, Ronny and Pink, Mario and Liu, Fuwen and K{\"o}nig, Hartmut}, title = {uBeeMe - Eine Plattform zur Unterst{\"u}tzung mobiler kollaborativer Anwendungen}, series = {Praxis der Informationsverarbeitung und Kommunikation : (PIK)}, volume = {34}, journal = {Praxis der Informationsverarbeitung und Kommunikation : (PIK)}, number = {1}, issn = {0930-5157}, doi = {10.1515/PIKO.2011.003}, pages = {11 -- 22}, language = {de} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {Cryptanalysis of a SIP Authentication Scheme}, series = {Communications and multimedia security, 12th IFIP TC 6/TC 11 international conference, CMS 2011, Ghent, Belgium, October 19-21, 2011}, booktitle = {Communications and multimedia security, 12th IFIP TC 6/TC 11 international conference, CMS 2011, Ghent, Belgium, October 19-21, 2011}, editor = {Decker, Bart De and Lapon, Jorn and Naessens, Vincent and Uhl, Andreas}, publisher = {Springer}, address = {Heidelberg [u.a.]}, isbn = {978-3-642-24711-8}, pages = {134 -- 143}, language = {en} } @misc{GaeblerKlauckSchoepkeetal., author = {G{\"a}bler, Jan and Klauck, Ronny and Sch{\"o}pke, Sebastian and K{\"o}nig, Hartmut and Werner, Martin and Roth, J{\"o}rg}, title = {Lemon Tree - Flexible Deich{\"u}berwachung mit XMPP und Cloud-Diensten}, series = {8. GI/ITG KuVS-Fachgespr{\"a}ch Ortsbezogene Anwendungen und Dienst}, journal = {8. GI/ITG KuVS-Fachgespr{\"a}ch Ortsbezogene Anwendungen und Dienst}, publisher = {Logos-Verlag}, address = {Berlin}, isbn = {978-3-8325-3041-9}, pages = {137 -- 148}, language = {de} } @misc{Koenig, author = {K{\"o}nig, Hartmut}, title = {Network Attack Detection and Defense}, series = {Praxis der Informationsverarbeitung und Kommunikation : (PIK)}, volume = {35}, journal = {Praxis der Informationsverarbeitung und Kommunikation : (PIK)}, number = {1}, issn = {0930-5157}, doi = {10.1515/pik-2012-0001}, pages = {S. 1}, language = {en} } @inproceedings{PinkPietschKoenig, author = {Pink, Mario and Pietsch, Thomas and K{\"o}nig, Hartmut}, title = {Towards a seamless mobility solution for the real world: Handover decision}, series = {Hand-over decision, International Symposium on Wireless Communication Systems 2012, August 2012, Paris, France}, booktitle = {Hand-over decision, International Symposium on Wireless Communication Systems 2012, August 2012, Paris, France}, publisher = {IEEE}, isbn = {978-1-4673-0761-1}, doi = {10.1109/ISWCS.2012.6328448}, pages = {651 -- 655}, abstract = {The increasing use of wireless networks has raised the desire to have not only a stable and good quality access to the network, but also to seamlessly change the network when moving. Various handover algorithms have been proposed to handle this situation. Unfortunately, many of these handover algorithms have only been evaluated by simulations. They do not take the wide range of mobile devices with varying system parameters into account. For the practical deployment, handover algorithms are required that adapt to various device parameters and network characteristics. In this paper we present a fuzzy-based vertical handover decision algorithm which adjusts itself to the given device and network capabilities. Starting with a discussion of handover requirements we present the algorithm and describe how it is activated in the handover process. Finally we present several experiments which evaluate the accuracy of the handover decision, the quality of service guarantees for the application, and the resource consumption.}, language = {en} } @inproceedings{PinkPietschKoenig, author = {Pink, Mario and Pietsch, Thomas and K{\"o}nig, Hartmut}, title = {An adaptive Handover decision algorithm for heterogeneous wireless networks}, series = {Mobile Wireless Middleware, Operating Systems, and Applications, 5th International Conference, Mobilware 2012, Berlin, Germany, November 13-14, 2012}, booktitle = {Mobile Wireless Middleware, Operating Systems, and Applications, 5th International Conference, Mobilware 2012, Berlin, Germany, November 13-14, 2012}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-642-36659-8}, pages = {136 -- 149}, language = {en} } @inproceedings{Schuster, author = {Schuster, Franka}, title = {Intrusion Detection for Automation Technology}, series = {Proceedings of the Seventh GI SIG SIDAR Graduate Workshop on Reactive Security (SPRING)}, booktitle = {Proceedings of the Seventh GI SIG SIDAR Graduate Workshop on Reactive Security (SPRING)}, editor = {Mulliner, Collin and Stewin, Patrick}, publisher = {GI FG SIDAR}, address = {Berlin}, pages = {S. 14}, language = {en} } @misc{VogelRietzSchmerl, author = {Vogel, Michael and Rietz, Ren{\´e} and Schmerl, Sebastian}, title = {Automated Generation of Precise Signatures}, series = {Praxis der Informationsverarbeitung und Kommunikation : (PIK)}, volume = {35}, journal = {Praxis der Informationsverarbeitung und Kommunikation : (PIK)}, number = {1}, issn = {0930-5157}, doi = {10.1515/pik-2012-0007}, pages = {40 -- 45}, language = {en} } @inproceedings{KaliappanKoenig, author = {Kaliappan, Prabhu Shankar and K{\"o}nig, Hartmut}, title = {On the Formalization of UML Activities for Component-Based Protocol Design Specifications}, series = {Theory and practice of computer science, SOFSEM 2012, 38th Conference on Current Trends in Theory and Practice of Computer Science, Špindlerův Ml{\´y}n, Czech Republic, January 21 - 27, 2012}, booktitle = {Theory and practice of computer science, SOFSEM 2012, 38th Conference on Current Trends in Theory and Practice of Computer Science, Špindlerův Ml{\´y}n, Czech Republic, January 21 - 27, 2012}, editor = {Katzenbeisser, Stefan}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-642-27659-0}, pages = {479 -- 491}, abstract = {This book constitutes the refereed proceedings of the 38th Conference on Current Trends in Theory and Practice of Computer Science, SOFSEM 2012, held in Špindlerův Ml{\´y}n, Czech Republic, in January 2012. The 43 revised papers presented in this volume were carefully reviewed and selected from 121 submissions. The book also contains 11 invited talks, 10 of which are in full-paper length. The contributions are organized in topical sections named: foundations of computer science; software and Web engineering; cryptography, security, and verification; and artificial intelligence.}, language = {en} } @inproceedings{KlauckKirsche, author = {Klauck, Ronny and Kirsche, Michael}, title = {XMPP to the Rescue: Enhancing Post Disaster Management and Joint Task Force Work}, series = {2012 IEEE International Conference on Pervasive Computing and Communications (PerCom 2012), Lugano, Switzerland, 19 - 23 March 2012}, booktitle = {2012 IEEE International Conference on Pervasive Computing and Communications (PerCom 2012), Lugano, Switzerland, 19 - 23 March 2012}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-467-30256-2}, pages = {752 -- 757}, language = {en} } @inproceedings{KlauckKirsche, author = {Klauck, Ronny and Kirsche, Michael}, title = {Bonjour Contiki: A Case Study of a DNS-Based Discovery Service for the Internet of Things}, series = {Ad-hoc, mobile, and wireless networks, 11th international conference, ADHOC-NOW 2012, Belgrade, Serbia, July 9 - 11, 2012, proceedings}, booktitle = {Ad-hoc, mobile, and wireless networks, 11th international conference, ADHOC-NOW 2012, Belgrade, Serbia, July 9 - 11, 2012, proceedings}, editor = {Li, Xiang-Yang and Papavassiliou, Symeon and Ruehrup, Stefan}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-642-31637-1}, pages = {317 -- 330}, language = {en} } @inproceedings{KlauckKirsche, author = {Klauck, Ronny and Kirsche, Michael}, title = {Chatty Things - Making the Internet of Things Readily Usable for the Masses with XMPP}, series = {Proceedings of the 8th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2012), Pittsburgh, Pennsylvania, USA, October, 2012}, booktitle = {Proceedings of the 8th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2012), Pittsburgh, Pennsylvania, USA, October, 2012}, publisher = {IEEE}, isbn = {978-1-4673-2740-4}, pages = {60 -- 69}, language = {en} } @book{KoallKlauck, author = {Koall, Sebastian and Klauck, Ronny}, title = {Dualisierung graphischer Benutzeroberfl{\"a}chen: Portierung einer GUI vom Desktop auf Smartphone}, publisher = {Akademieverlag}, address = {Berlin}, isbn = {978-3-639-39126-8}, pages = {100}, language = {de} } @misc{KoenigGaeblerKlaucketal., author = {K{\"o}nig, Hartmut and G{\"a}bler, Jan and Klauck, Ronny and Pink, Mario and Sprejz, Michael}, title = {uBeeMe - A Platform for Mobile Collaborative Applications}, series = {PIK - Praxis der Informationsverarbeitung und Kommunikation}, volume = {36}, journal = {PIK - Praxis der Informationsverarbeitung und Kommunikation}, number = {1}, issn = {0930-5157}, doi = {10.1515/pik-2012-0058}, pages = {S. 43}, language = {en} } @misc{GaeblerKoenig, author = {G{\"a}bler, Jan and K{\"o}nig, Hartmut}, title = {Moversight: a group communication protocol for mobile scenarios}, series = {Telecommunication systems : modeling, analysis, design and managementversion}, volume = {61}, journal = {Telecommunication systems : modeling, analysis, design and managementversion}, number = {4}, issn = {1572-9451}, doi = {10.1007/s11235-015-0062-1}, pages = {695 -- 716}, abstract = {The increasing mobility of Internet users and the growing need to collaborate with staff travelling on business belong to the key characteristics of the future Internet. Mobile collaborative applications require novel schemes for group communication that actively support collaborations in wireless scenarios. An intrinsic problem of collaborations in wireless scenarios is the temporary connection loss with the group due to user mobility and network issues. Existing group communication protocols do not sufficiently support this situation. In this paper, we present a new peer-to-peer group communication protocol, called Moversight, that was specifically designed to support closed group cooperation in mobile environments with varying churn rates. It applies a new group communication paradigm, called mobile optimistic virtual synchrony, to handle churn-related peer failures. It enhances the virtual synchrony paradigm for mobile scenarios. The paper introduces the paradigm and describes the main protocol features of Moversight. Finally we present simulation results to demonstrate the applicability of the protocol.}, language = {en} } @misc{KlauckKirsche, author = {Klauck, Ronny and Kirsche, Michael}, title = {Combining Mobile XMPP Entities and Cloud Services for Collaborative Post-Disaster Management in Hybrid Network Environments}, series = {Mobile Networks and Applications : the journal of special issues on mobility of systems, users, data and computing}, volume = {18}, journal = {Mobile Networks and Applications : the journal of special issues on mobility of systems, users, data and computing}, number = {2}, issn = {1383-469X}, doi = {10.1007/s11036-012-0391-1}, pages = {253 -- 270}, abstract = {Crises such as the Fukushima incident in Japan showed the demand for flexible and easy-to-use monitoring and communication systems to support post-disaster management (i.e. the organization of actions in the follow-up of disasters), especially when critical infrastructure is affected. Such systems can effectively only be realized with a merging of various device classes and the integration of mobile actors and wireless communication technologies to provide the necessary flexibility. This article introduces a system design that combines portable hand-held devices as well as autonomous sensors through XMPP with the flexibility of cloud services to support post-disaster management. This combination provides the communication between the different involved parties (e.g., rescue teams, relief forces, NGOs) and enables a global view on sensed data through the use of cloud-based storage and analysis services. Along with a discussion about requirements and a description of appropriate solutions and initial evaluations, we present new insights on the practical appliance of XMPP and potential enhancements for XMPP-based real life collaboration applications in hybrid (ad hoc and infrastructure) networkscenarios.We also show that resource constrained devices can run the XMPP protocol to extend smartphones with sensors or to connect different device classes in a seamless way.}, language = {en} } @inproceedings{KirscheSchnurbusch, author = {Kirsche, Michael and Schnurbusch, Matti}, title = {A new IEEE 802.15.4 Simulation Model for OMNeT++ / INET}, series = {Proceedings of the 1st International OMNeT++ Community Summit (OMNeT 2014)}, booktitle = {Proceedings of the 1st International OMNeT++ Community Summit (OMNeT 2014)}, abstract = {This paper introduces a new IEEE 802.15.4 simulation model for OMNeT++ / INET. 802.15.4 is an important underlying standard for wireless sensor networks and Internet of Things scenarios. The presented implementation is designed to be compatible with OMNeT++ 4.x and INET 2.x and laid-out to be expandable for newer revisions of the 802.15.4 standard.}, language = {en} } @inproceedings{BoehmKirsche, author = {B{\"o}hm, Sebastian and Kirsche, Michael}, title = {Looking into Hardware-in-the-Loop Coupling of OMNeT++ and RoSeNet}, series = {Proceedings of the 2nd International OMNeT++ Community Summit (OMNeT 2015), Zurich, Switzerland, September, 2015, CoRR}, booktitle = {Proceedings of the 2nd International OMNeT++ Community Summit (OMNeT 2015), Zurich, Switzerland, September, 2015, CoRR}, pages = {5}, language = {en} } @inproceedings{DacierKarglKoenigetal., author = {Dacier, Marc C. and Kargl, Frank and K{\"o}nig, Hartmut and Valdes, Alfonso}, title = {Network Attack Detection and Defense: Securing Industrial Control Systems for Critical Infrastructures}, series = {Report from Dagstuhl Seminar 14292, 13. - 16. Juli 2014,}, booktitle = {Report from Dagstuhl Seminar 14292, 13. - 16. Juli 2014,}, publisher = {Dagstuhl Publishing}, address = {Schloss Dagstuhl, Wadern}, doi = {10.4230/DagRep.4.7.62}, pages = {62 -- 79}, abstract = {This report documents the program and the outcomes of Dagstuhl Seminar 14292 "Network Attack Detection and Defense: Securing Industrial Control Systems for Critical Infrastructures". The main objective of the seminar was to discuss new approaches and ideas for securing industrial control systems. It is the sequel of several previous Dagstuhl seminars: (1) the series "Network Attack Detection and Defense" held in 2008 and 2012, and (2) the Dagstuhl seminar "Securing Critical Infrastructures from Targeted Attacks", held in 2012. At the seminar, which brought together members from academia an industry, appropriate methods for detecting attacks on industrial control systems (ICSs) and for limiting the impact on the physical components were considered. A central question was whether and how reactive security mechanisms can be made more ICS- and process-aware. To some extent it seems possible to adopt existing security approaches from other areas (e. g., conventional networks, embedded systems, or sensor networks). The main question is whether adopting these approaches is sufficient to reach the desired level of security for ICSs. Detecting attacks to the physical components and appropriate reactions to attacks are new aspects that need to be considered as well. The main result of the seminar is a list of recommendations for future directions in ICS security that is presented in this report.}, language = {en} } @inproceedings{SchusterGrubitzschRenzeletal., author = {Schuster, Daniel and Grubitzsch, Philipp and Renzel, Dominik and Klauck, Ronny and Kirsche, Michael}, title = {Global-scale Federated Access to Smart Objects Using XMPP}, series = {2014 IEEE International Conference on Internet of Things (iThings 2014), and IEEE green computing and communications (GreenCom 2014) and IEEE cyber, physical and social computing (CPSCom 2014), Taipei, Taiwan, 1 - 3 September 2014}, booktitle = {2014 IEEE International Conference on Internet of Things (iThings 2014), and IEEE green computing and communications (GreenCom 2014) and IEEE cyber, physical and social computing (CPSCom 2014), Taipei, Taiwan, 1 - 3 September 2014}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4799-5967-9}, pages = {185 -- 192}, abstract = {Communication with smart objects currently only works in isolated, sometimes even proprietary islands. This lack of interoperability limits the value of smart objects connected to the Internet of Things (IoT). We propose to use the eXtensible Messaging and Presence Protocol (XMPP) to connect IoT islands. XMPP is inherently federated, secure, globally scalable and designed for collaboration. We use XMPP Multi-User Chat (MUC) to build a secure and accessible platform for sensor data exchange between organizations. We demonstrate a scenario of three distributed and interconnected XMPP-driven sites, whereas different client types access sensor data from all sites. Our evaluation results confirm that the architectural pattern presented in this work can easily be used in any XMPP-based system without the need to enhance or to extend the standards.}, language = {en} } @phdthesis{Langendoerfer, author = {Langend{\"o}rfer, Peter}, title = {Gestaltung konfigurierbarer Codegeneratoren f{\"u}r die automatische Erzeugung effizienter Protokollimplementierungen}, publisher = {Shaker}, address = {Aachen}, isbn = {3-8265-8539-9}, language = {de} } @inproceedings{PinkSprejzKoenig, author = {Pink, Mario and Sprejz, Michael and K{\"o}nig, Hartmut}, title = {A Coordinated Group Decision for Vertical Handovers in Heterogeneous Wireless Networks}, series = {2013 International Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications, Bologna, Italy, November 11-13, 2013}, booktitle = {2013 International Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications, Bologna, Italy, November 11-13, 2013}, publisher = {IEEE}, address = {Piscataway, NJ}, doi = {10.1109/Mobilware.2013.20}, pages = {130 -- 137}, abstract = {Cooperation and interactions of mobile users is a characteristic feature of mobile collaborative applications. The users are located in different mobile communication networks or move in or among them, respectively. This requires horizontal and vertical handovers. The latter is required when the networks use different network technologies. Usually each mobile device independently chooses the most appropriate network for its purposes to switch to. In group-oriented applications this may lead to an uncoordinated network selection and as consequence to increased energy consumption. In this paper, we present a distributed vertical handover decision algorithm that coordinates the selection of the network among the mobile devices in order to ensure an optimal quality of service for the collaborative application and a low energy consumption of the involved mobile devices. The network selection is based on the calculation of a group benefit for each alternative network using the Simple Additive Weighting (SAW) algorithm. The feasibility of the algorithm is evaluated regarding varying group sizes and resource requirements.}, language = {en} } @inproceedings{GaeblerKoenig, author = {G{\"a}bler, Jan and K{\"o}nig, Hartmut}, title = {Enhancing Group Communication Systems with Mobility Support}, series = {Proceedings of the 19th IEEE International Conference on Networks (ICON 2013), Singapore, December 2013}, booktitle = {Proceedings of the 19th IEEE International Conference on Networks (ICON 2013), Singapore, December 2013}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4799-2085-3}, pages = {342 -- 347}, language = {en} } @inproceedings{MehnerKlauckKoenig, author = {Mehner, Stefan and Klauck, Ronny and K{\"o}nig, Hartmut}, title = {Location-independent fall detection with smartphone}, series = {The 6th International Conference on PErvasive Technologies Related to Assistive Environments, PETRA '13, Island of Rhodes, Greece, May 29-31, 2013}, booktitle = {The 6th International Conference on PErvasive Technologies Related to Assistive Environments, PETRA '13, Island of Rhodes, Greece, May 29-31, 2013}, editor = {Makedon, Fillia and Betke, Margrit and Seif El-Nasr, Magy and Maglogiannis, Ilias}, publisher = {ACM}, address = {New York, NY}, isbn = {978-1-4503-1973-7}, doi = {10.1145/2504335.2504346}, pages = {8}, abstract = {Due to demographic changes in developed industrial countries and a better medical care system, the number of elderly people who still live in their home environment is rapidly growing because there they feel more comfortable and independent as in a clinical environment or in a residential care home. The elderly often live alone and receive only irregular visits. Due to impaired physical skills the probability of falls significantly increases. The detection of falls is a crucial aspect in the care of elderly. Falls are often detected very late with severe consequential damages. There are existing approaches for automatic fall detection. They usually deploy special external devices. Elderly people often do not accept these devices because they expose their frailty. In this paper, we present a location-independent fall detection method implemented as a smartphone application for an inconspicuous use in nearly every situation of the daily life. The difficulty of our approach is in the low resolution range of integrated acceleration sensors and the limited energy supply of the smartphone. As solution, we apply a modular threshold-based algorithm which uses the acceleration sensor with moderate energy consumption. Its fall detection rate is in the average of current relevant research.}, language = {en} } @inproceedings{GaeblerKlauckPinketal., author = {G{\"a}bler, Jan and Klauck, Ronny and Pink, Mario and K{\"o}nig, Hartmut}, title = {uBeeMe - a Platform to Enable Mobile Collaborative Applications}, series = {Proceedings of the 9th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2013), Austin, Texas, USA, October, 2013}, booktitle = {Proceedings of the 9th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2013), Austin, Texas, USA, October, 2013}, publisher = {IEEE}, address = {Piscataway, NJ}, pages = {188 -- 196}, language = {en} } @inproceedings{KlauckKirsche, author = {Klauck, Ronny and Kirsche, Michael}, title = {Enhanced DNS Message Compression - Optimizing mDNS/DNS-SD for the Use in 6LoWPANs}, series = {Proceedings,9th IEEE International Workshop on Sensor Networks and Systems for Pervasive Computing 2013 (PerSeNS 2013), co-located with the 11th IEEE Conference on Pervasive Computing and Communication (PerCom 2013), San Diego, Calif., USA, 2013}, booktitle = {Proceedings,9th IEEE International Workshop on Sensor Networks and Systems for Pervasive Computing 2013 (PerSeNS 2013), co-located with the 11th IEEE Conference on Pervasive Computing and Communication (PerCom 2013), San Diego, Calif., USA, 2013}, publisher = {IEEE}, isbn = {978-1-4673-5075-4}, doi = {10.1109/PerComW.2013.6529565}, pages = {596 -- 601}, language = {en} } @inproceedings{GaeblerKoenig, author = {G{\"a}bler, Jan and K{\"o}nig, Hartmut}, title = {Moversight: A Group Communication Protocol for Mobile Collaborative Applications}, series = {Proceedings of the 6th Joint IFIP Wireless and Mobile Networking Conference (WMNC 2013), Dubai, United Arab Emirates, 23 - 25th April 2013}, booktitle = {Proceedings of the 6th Joint IFIP Wireless and Mobile Networking Conference (WMNC 2013), Dubai, United Arab Emirates, 23 - 25th April 2013}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4673-5615-2}, pages = {72 -- 79}, language = {en} } @inproceedings{SchmerlRietzKoenig, author = {Schmerl, Sebastian and Rietz, Ren{\´e} and K{\"o}nig, Hartmut}, title = {Systematische Ableitung von Signaturen durch Wiederverwendung am Beispiel von Snort}, series = {Sicherheit 2008, Konferenzband der 4. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik e.V.(GI), 2. - 4. April 2008 im Saarbr{\"u}cker Schloss}, booktitle = {Sicherheit 2008, Konferenzband der 4. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik e.V.(GI), 2. - 4. April 2008 im Saarbr{\"u}cker Schloss}, editor = {Alkassar, Ammar}, publisher = {Ges. f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-222-2}, pages = {367 -- 379}, language = {de} } @inproceedings{KirscheKremmer, author = {Kirsche, Michael and Kremmer, Roman}, title = {uIP Support for the Network Simulation Cradle}, series = {Proceedings of the 2nd International OMNeT++ Community Summit (OMNeT 2015)}, booktitle = {Proceedings of the 2nd International OMNeT++ Community Summit (OMNeT 2015)}, abstract = {We introduce the ongoing integration of Contiki's uIP stack into the OMNeT++ port of the Network Simulation Cradle (NSC). The NSC utilizes code from real world stack implementations and allows for an accurate simulation and comparison of different TCP/IP stacks and a validation of thereby connected simulation models. uIP(v6) provides resource-constrained devices with an RFC-compliant TCP/IP stack and promotes the use of IPv6 in the vastly growing field of Internet of Things scenarios. This work-in-progress report discusses our motivation to integrate uIP into the NSC, our chosen approach and possible use cases for the simulation of uIP in OMNeT++.}, language = {en} } @inproceedings{OpitzTodtenbergKoenig, author = {Opitz, Stefanie Judith and Todtenberg, Nicole and K{\"o}nig, Hartmut}, title = {Mobile bandwidth prediction in the context of emergency medical service}, series = {Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA '14)}, booktitle = {Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA '14)}, publisher = {ACM}, address = {New York, NY}, isbn = {978-1-4503-2746-6}, doi = {10.1145/2674396.2674411}, language = {en} } @inproceedings{RietzVogelSchusteretal., author = {Rietz, Ren{\´e} and Vogel, Michael and Schuster, Franka and K{\"o}nig, Hartmut}, title = {Parallelization of Network Intrusion Detection Systems under Attack Conditions}, series = {Detection of Intrusions and Malware, and Vulnerability Assessment, 11th International Conference, DIMVA 2014, Egham, UK, July 10-11, 2014}, booktitle = {Detection of Intrusions and Malware, and Vulnerability Assessment, 11th International Conference, DIMVA 2014, Egham, UK, July 10-11, 2014}, editor = {Dietrich, Sven}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-319-08508-1}, pages = {172 -- 191}, language = {en} } @inproceedings{MeierSchmerl, author = {Meier, Michael and Schmerl, Sebastian}, title = {Effiziente Analyseverfahren f{\"u}r Intrusion-Detection Systeme}, series = {Sicherheit 2005, Sicherheit, Schutz und Zuverl{\"a}ssigkei, 5. - 8. April 2005 in Regensburg, 2. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik e.V.}, booktitle = {Sicherheit 2005, Sicherheit, Schutz und Zuverl{\"a}ssigkei, 5. - 8. April 2005 in Regensburg, 2. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik e.V.}, editor = {Federrath, Hannes}, publisher = {Ges. f{\"u}r Informatik}, address = {Bonn}, isbn = {3-88579-391-1}, pages = {209 -- 220}, language = {de} } @inproceedings{SchusterPaulKoenig, author = {Schuster, Franka and Paul, Andreas and K{\"o}nig, Hartmut}, title = {Towards Learning Normality for Anomaly Detection in Industrial Control Networks}, series = {Proceedings of the 7th IFIP WG 6.6 International Conference on Autonomous Infrastructure, Management, and Security (AIMS 2013), Barcelona, Spain, June 25-28, 2013}, booktitle = {Proceedings of the 7th IFIP WG 6.6 International Conference on Autonomous Infrastructure, Management, and Security (AIMS 2013), Barcelona, Spain, June 25-28, 2013}, publisher = {Heidleberg}, address = {Berlin [u.a.]}, isbn = {978-3-642-38997-9}, pages = {61 -- 72}, language = {en} } @inproceedings{PaulSchusterKoenig, author = {Paul, Andreas and Schuster, Franka and K{\"o}nig, Hartmut}, title = {Towards the Protection of Industrial Control Systems - Conclusions of a Vulnerability Analysis of Profinet IO}, series = {Detection of Intrusions and Malware, and Vulnerability Assessment, 10th International Conference, DIMVA 2013, Berlin, Germany, July 18-19, 2013, proceedings}, booktitle = {Detection of Intrusions and Malware, and Vulnerability Assessment, 10th International Conference, DIMVA 2013, Berlin, Germany, July 18-19, 2013, proceedings}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-642-39234-4}, pages = {160 -- 176}, language = {en} } @inproceedings{Vogel, author = {Vogel, Michael}, title = {P2P-basierte Analyseverteilung f{\"u}r Intrusion Detection Systeme.}, series = {Proceedings of the 3rd GI Graduate Workshop on Reactive Security (SPRING), Mannheim, August 2008, SIDAR-Report SR-2008-01}, booktitle = {Proceedings of the 3rd GI Graduate Workshop on Reactive Security (SPRING), Mannheim, August 2008, SIDAR-Report SR-2008-01}, editor = {Flegel, Ulrich and Holz, Thorsten}, pages = {S. 12}, language = {de} } @inproceedings{SchusterPaulKoenig, author = {Schuster, Franka and Paul, Andreas and K{\"o}nig, Hartmut}, title = {A Distributed Intrusion Detection System for Industrial Automation Networks}, series = {Proceedings of the 17th International Conference on Emerging Technologies \& Factory Automation, Krakau, Polen, September 2012}, booktitle = {Proceedings of the 17th International Conference on Emerging Technologies \& Factory Automation, Krakau, Polen, September 2012}, publisher = {IEEE}, isbn = {978-1-4673-4736-5}, doi = {10.1109/ETFA.2012.6489703}, pages = {1 -- 4}, abstract = {Modern automation is measured in terms of interoperability and easy administration. Introducing technology focussing on these criteria, however, induce new security risks to existing and future automation installations. Current security approaches in automation do not keep pace with the rising security challenges. Prevalent in automation is the use of access control to protect the system from malicious activity, such as extern attacks. Means to inspect the automation traffic to identify attacks that already have overcome access control or are initiated from inside the automation system are not available, yet. For filling this gap, we investigate in the application of intrusion detection techniques on industrial automation. In this paper, we present the current state of an intrusion detection system tailored to the analysis of operation down to traffic between automation devices on field layer.}, language = {en} } @inproceedings{Paul, author = {Paul, Andreas}, title = {Verwundbarkeitsanalyse des Industrial-Ethernet Protokolls Profinet IO}, series = {Proceedings of the Seventh GI SIG SIDAR Graduate Workshop on Reactive Security (SPRING)}, booktitle = {Proceedings of the Seventh GI SIG SIDAR Graduate Workshop on Reactive Security (SPRING)}, editor = {Stewin, Patrick and Mulliner, Collin}, publisher = {GI FG SIDAR}, address = {Berlin}, pages = {S. 10}, language = {de} } @inproceedings{BrachmannGarciaMorchonKirsche, author = {Brachmann, Martina and Garcia-Morchon, Oscar and Kirsche, Michael}, title = {Security for Practical CoAP Applications: Issues and Solution Approaches}, series = {10. Fachgespr{\"a}ch Sensornetze der GI/ITG Fachgruppe Kommunikation und Verteilte Systeme, 15. - 16. September 2011}, booktitle = {10. Fachgespr{\"a}ch Sensornetze der GI/ITG Fachgruppe Kommunikation und Verteilte Systeme, 15. - 16. September 2011}, editor = {Frey, Hannes}, address = {Paderborn}, pages = {69 -- 72}, language = {en} } @inproceedings{KaliappanKoenig, author = {Kaliappan, Prabhu Shankar and K{\"o}nig, Hartmut}, title = {An Approach to Synchronize UML-basedDesign Components for Model-Driven Protocol Development}, series = {Proceedings, 2011 34th IEEE Software Engineering Workshop, 20-21 June 2011, Limerick, Ireland}, booktitle = {Proceedings, 2011 34th IEEE Software Engineering Workshop, 20-21 June 2011, Limerick, Ireland}, publisher = {IEEE}, address = {Los Alamitos, Calif.}, isbn = {978-1-4673-0245-6}, pages = {27 -- 35}, language = {en} } @inproceedings{Kaliappan, author = {Kaliappan, Prabhu Shankar}, title = {Uncertainty, Protocol Behavior Prediction Through Chaos Theory?}, series = {2011 International Conference on Uncertainty Reasoning and Knowledge Engineering, Bali, Indonesia 4-7 August 2011, Vol. 1}, booktitle = {2011 International Conference on Uncertainty Reasoning and Knowledge Engineering, Bali, Indonesia 4-7 August 2011, Vol. 1}, publisher = {IEEE}, isbn = {978-1-4244-9985-4}, pages = {20 -- 24}, language = {en} } @incollection{Koenig, author = {K{\"o}nig, Hartmut}, title = {Zur Entwicklung der Module "Grundlagen der Rechnernetze" und "High Performance Communication - Multimedia"}, language = {de} } @inproceedings{Schmerl, author = {Schmerl, Sebastian}, title = {Verifikation von Signaturen - Spezifikationsfehlern auf der Spur}, series = {Proceedings of the 3rd GI Graduate Workshop on Reactive Security (SPRING)}, booktitle = {Proceedings of the 3rd GI Graduate Workshop on Reactive Security (SPRING)}, editor = {Flegel, Ulrich and Holz, Thorsten}, address = {Mannheim}, pages = {S. 15}, language = {de} } @inproceedings{KirscheKlauck, author = {Kirsche, Michael and Klauck, Ronny}, title = {Unify to Bridge Gaps: Bringing XMPP into the Internet of Things}, series = {2012 IEEE International Conference on Pervasive Computing and Communications (PerCom 2012), Lugano, Switzerland, 19 - 23 March 2012}, booktitle = {2012 IEEE International Conference on Pervasive Computing and Communications (PerCom 2012), Lugano, Switzerland, 19 - 23 March 2012}, publisher = {Institute of Electrical and Electronics Engineers (IEEE )}, address = {Piscataway, NJ}, isbn = {978-1-467-30256-2}, pages = {455 -- 458}, language = {en} } @inproceedings{SchmerlFlegelMeier, author = {Schmerl, Sebastian and Flegel, Ulrich and Meier, Michael}, title = {Vereinfachung der Signaturentwicklung durch Wiederverwendung}, editor = {Dittmann, Jana}, language = {de} } @inproceedings{SchmerlVogelRietzetal., author = {Schmerl, Sebastian and Vogel, Michael and Rietz, Ren{\´e} and K{\"o}nig, Hartmut}, title = {Explorative Visualization of Log Data to Support Forensic Analysis and Signature Development}, series = {2010 Fifth IEEE International Workshop on Systematic Approaches to Digital Forensic Engineering (SADFE 2010), Oakland, California, USA, 20 May 2010}, booktitle = {2010 Fifth IEEE International Workshop on Systematic Approaches to Digital Forensic Engineering (SADFE 2010), Oakland, California, USA, 20 May 2010}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-424-47220-8}, pages = {109 -- 118}, language = {en} } @inproceedings{Kirsche, author = {Kirsche, Michael}, title = {IEEE 802.15.4 Performance Analysis}, series = {Modeling and tools for network simulation}, booktitle = {Modeling and tools for network simulation}, editor = {Wehrle, Klaus}, isbn = {978-3-642-12330-6}, pages = {317 -- 325}, language = {en} } @inproceedings{SchmerlVogelKoenig, author = {Schmerl, Sebastian and Vogel, Michael and K{\"o}nig, Hartmut}, title = {Cooperating Intrusion Detection Overlay Structures}, series = {4th GI/ITG KuVS Workshop on Future Internet and 2nd Workshop on Economic Traffic Management (ETM), Z{\"u}rich, Switzerland, 9 - 10. November 2009}, booktitle = {4th GI/ITG KuVS Workshop on Future Internet and 2nd Workshop on Economic Traffic Management (ETM), Z{\"u}rich, Switzerland, 9 - 10. November 2009}, language = {en} } @inproceedings{SchmerlVogelKoenig, author = {Schmerl, Sebastian and Vogel, Michael and K{\"o}nig, Hartmut}, title = {Identifying Modeling Errors in Signatures by Model Checking.}, language = {en} } @inproceedings{KlauckKirsche, author = {Klauck, Ronny and Kirsche, Michael}, title = {Integrating P2PSIP into Collaborative P2P Applications: A Case Study with the P2P Videoconferencing System BRAVIS}, series = {Proceedings of the 5th International ICST Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom, 11 - 14 November 2009, Crystal City, Washington D.C., USA}, booktitle = {Proceedings of the 5th International ICST Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom, 11 - 14 November 2009, Crystal City, Washington D.C., USA}, isbn = {978-963-979976-9}, language = {en} } @book{Klauck, author = {Klauck, Ronny}, title = {Integration von P2PSIP in eine kollaborative Anwendung: Am Beispiel des P2P-Videokonferenzsystems BRAVIS}, publisher = {Saarbr{\"u}cken : VDM Verl. Dr. M{\"u}ller}, isbn = {978-3-639-36714-0}, language = {de} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {Efficient Key Distribution for ClosedMeetings in the Internet}, series = {Communications and Multimedia Security, 9th IFIP TC-6 TC-11 International Conference, CMS 2005, Salzburg, Austria, September 19 - 21, 2005}, booktitle = {Communications and Multimedia Security, 9th IFIP TC-6 TC-11 International Conference, CMS 2005, Salzburg, Austria, September 19 - 21, 2005}, editor = {Dittmann, Jana}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-28791-4}, pages = {271 -- 272}, language = {en} } @inproceedings{LiuKoenig, author = {Liu, Fuwen and K{\"o}nig, Hartmut}, title = {Puzzle - A Novel Video Encryption Algorithm}, editor = {Dittmann, Jana and Katzenbeisser, Stefan and Uhl, Andreas}, isbn = {3-540-28791-4}, language = {en} } @inproceedings{ZuehlkeKoenig, author = {Z{\"u}hlke, Mario and K{\"o}nig, Hartmut}, title = {A Signalling Protocol for Small Closed Dynamic Multi-peer Groups}, series = {High speed networks and multimedia communications, 7th IEEE international conference, HSNMC 2004, Toulouse, France, June 30 - July 2, 2004, proceedings}, booktitle = {High speed networks and multimedia communications, 7th IEEE international conference, HSNMC 2004, Toulouse, France, June 30 - July 2, 2004, proceedings}, editor = {Mammeri, Zoubir}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-22262-6}, pages = {973 -- 984}, language = {en} } @inproceedings{MeierSchmerlKoenig, author = {Meier, Michael and Schmerl, Sebastian and K{\"o}nig, Hartmut}, title = {Improving the efficiency of misuse detection}, series = {Detection of intrusions and malware, and vulnerability assessment, second international conference, DIMVA 2005, Vienna, Austria, July 7-8, 2005, proceedings}, booktitle = {Detection of intrusions and malware, and vulnerability assessment, second international conference, DIMVA 2005, Vienna, Austria, July 7-8, 2005, proceedings}, editor = {Julisch, Klaus}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-26613-5}, pages = {S. 188}, language = {en} } @inproceedings{PopoviciMahloZuehlkeetal., author = {Popovici, Eduard and Mahlo, Ralf and Z{\"u}hlke, Mario and K{\"o}nig, Hartmut}, title = {Consistency Support for a Decentralized Management in Closed Multiparty Conferences Using SIP}, language = {en} } @misc{OPUS4-8770, title = {Network Attack Detection and Defense Early Warning Systems - Challenges and Perspectives}, editor = {Carle, Georg and Debar, Herv{\´e} and Dressler, Falko and K{\"o}nig, Hartmut}, publisher = {DROPS}, address = {Schloss Dagstuhl}, doi = {10.4230/DagRep.2.2.1}, url = {http://nbn-resolving.de/urn:nbn:de:0030-drops-34761}, abstract = {The increasing dependence of human society on information technology (IT) systems requires appropriate measures to cope with their misuse. The growing potential of threats, which make these systems more and more vulnerable, is caused by the complexity of the technologies themselves. The potential of threats in networked systems will further grow as well as the number of individuals who are able to abuse these systems. It becomes increasingly apparent that IT security cannot be achieved by prevention alone. Preventive measures and reactive aspects need to complement one another. A major challenge of modern IT security technologies is to cope with an exploding variability of attacks which stems from a significant commercial motivation behind them. Increasingly proactive measures are required to ward off these threats. Increased efforts in research and society are required to protect critical civil infrastructures, such as the health care system, the traffic system, power supply, trade, military networks, and others in developed countries. This is a consequence of the increasing shift of industrial IT systems to the IP protocol leading to sensible IT infrastructures which are more vulnerable as the proprietary systems used in the past. The abundance of services of modern infrastructures critically depends on information and communication technologies. Though, being key enablers of critical infrastructures, these technologies are, at the same time, reckoned among the most vulnerable elements of the whole system. The cooperative information exchange between institutions is mandatory in order to detect distributed and coordinated attacks. Based on a large-scale acquisition of pertinent information, Early Warning Systems are a currently pursued approach to draw up situation pictures that allows the detection of trends and upcoming threats, allowing furthermore taking appropriate measures. The Dagstuhl seminar brought together researchers from academia and industry. The objective of the seminar was to further discuss challenges and methods in the area of attack detection and defense. The seminar was supposed to focus on design aspects of early warning systems and related monitoring infrastructures, e.g., intrusion detection overlays, to protect computer systems, networks, and critical infrastructures. The seminar was jointly organized by Georg Carle, Herv{\´e} Debar, Hartmut K{\"o}nig, and Jelena Mirkovic. It was attended by 34 participants from nine countries.}, language = {en} } @misc{GaeblerKoenig, author = {G{\"a}bler, Jan and K{\"o}nig, Hartmut}, title = {Moversight: An Approach to Support Mobility in Collaborative Applications}, publisher = {IEEE}, isbn = {978-1-4799-0747-2}, pages = {110 -- 112}, language = {en} } @misc{OPUS4-14954, title = {Proceedings of the 2nd International OMNeT++ Community Summit (OMNeT 2015), Zurich, Switzerland on September 3-4, 2015}, editor = {F{\"o}rster, Anna and Minkenberg, Cyriel and Herrera, German Rodriguez and Kirsche, Michael}, language = {en} } @misc{KirscheHartwig, author = {Kirsche, Michael and Hartwig, Jonas}, title = {A 6LoWPAN Model for OMNeT++}, isbn = {978-1-4503-2464-9}, pages = {330 -- 333}, language = {en} } @misc{KlauckKirscheGaebleretal., author = {Klauck, Ronny and Kirsche, Matthias and G{\"a}bler, Jan and Sch{\"o}pke, Sebastian}, title = {Mobile XMPP and Cloud Service Collaboration: An Alliance for Flexible Disaster Management}, series = {7th International Conference on Collaborative Computing, Networking, Applications and Worksharing (CollaborateCom 2011), Orlando, Florida, USA, 15 - 18 October 2011}, journal = {7th International Conference on Collaborative Computing, Networking, Applications and Worksharing (CollaborateCom 2011), Orlando, Florida, USA, 15 - 18 October 2011}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-467-30683-6}, pages = {201 -- 211}, language = {en} } @book{LaPortaRamjeeKoenig, author = {La Porta, Tom and Ramjee, Ram and K{\"o}nig, Hartmut}, title = {Proceedings of the 12th IEEE International Conference on Network Protocols, ICNP 2004 : 4 - 8 October 2004, Berlin, Germany}, publisher = {Los Alamitos, Calif. [u.a.] : IEEE Computer Society}, isbn = {0-7695-2161-4}, language = {en} } @misc{MeierFlegelSchmerl, author = {Meier, Michael and Flegel, Ulrich and Schmerl, Sebastian}, title = {Efficiency Issues of Rete-based, Expert Systems for Misuse Detection}, series = {Proceedings, Twenty-Third Annual Computer Security Applications Conference, ACSAC 2007, 10 - 14 December 2007, Miami Beach, Florida}, journal = {Proceedings, Twenty-Third Annual Computer Security Applications Conference, ACSAC 2007, 10 - 14 December 2007, Miami Beach, Florida}, publisher = {IEEE Computer Society}, address = {Los Alamitos, Calif.}, isbn = {978-0-7695-3060-4}, pages = {151 -- 160}, language = {en} } @phdthesis{Liu, author = {Liu, Fuwen}, title = {A security architecture for a peer-to-peer video conference system}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-445}, language = {en} } @article{LangendoerferKraemerKoenig, author = {Langend{\"o}rfer, Peter and Kraemer, Rolf and K{\"o}nig, Hartmut}, title = {Evaluation of Well-Known Protocol Implementation Techniques for Application in Wireless Networks}, series = {The Journal of Supercomputing}, volume = {20}, journal = {The Journal of Supercomputing}, number = {2}, issn = {0920-8542}, pages = {161 -- 173}, language = {en} } @article{OpitzKoenigSzamlewska, author = {Opitz, Alek and K{\"o}nig, Hartmut and Szamlewska, Sebastian}, title = {What Does Grid Computing Cost?}, language = {en} } @article{LiuKoenigWang, author = {Liu, Fuwen and K{\"o}nig, Hartmut and Wang, W.}, title = {Designing a Security Architecture for a P2P Video Conference System}, language = {en} } @misc{OPUS4-2328, title = {Formal techniques for networked and distribution systems - FORTE 2003}, editor = {K{\"o}nig, Hartmut and Heiner, Monika and Wolisz, Adam}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-20175-0}, pages = {XII, 429}, language = {en} } @book{Koenig, author = {K{\"o}nig, Hartmut}, title = {Protocol Engineering}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-642-29144-9}, pages = {XV, 525}, language = {en} }