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Jan Grashöfer, M.Sc.

Scientific staff member
Office Hoursby appointment
Room112 (Geb. 20.50)
Phone+49 721 608-41920
Fax+49 721 608-47763
jan grashoeferVkb1∂kit edu

Karlsruhe Institute of Technology (KIT)
Institut of Telematics (TM)
Decentralized Systems and Network
Services Research Group (DSN)

Bldg. 20.50
Engesserstr. 2
76131 Karlsruhe





Personal Information

My primary research interests are in the area of Network Security. Since January 2017 I am a member of the Decentralized Systems and Network Services Research Group, led by Professor Hartenstein. As a PhD candidate I am developing my dissertation topic, focusing on Network Security Monitoring (NSM). Furthermore, I am concerned with secure data sharing and related questions regarding access control.

After receiving a Bachelor's degree from TU Dortmund, I graduated at Karlsruhe Institute of Technology (KIT), majoring in telematics (distributed systems) as well as software engineering and compiler design. During my studies I received the opportunity to work as a Technical Student in the security team of the European Organization for Nuclear Research (CERN) for one semester. In this context my interest in Network Security Monitoring (NSM) awoke, so that I concluded my graduate studies with a corresponding thesis.


since 2017 Scientific staff member at Distributed Systems and Network Services Research Group, Institute of Telematics, Karlsruhe Institute of Technology
2013 - 2016 Student of Computer Science (M.Sc.) at Karlsruhe Institute of Technology
2009 - 2012 Student of Computer Science (B.Sc.) at Technische Universität Dortmund


Matrix Decomposition – Analysis of an Access Control Approach on Transaction-based DAGs without Finality.
Jacob, F.; Becker, L.; Grashöfer, J.; Hartenstein, H.
2020. SACMAT ’20: Proceedings of the 25th ACM Symposium on Access Control Models and Technologies, Barcelona Spain, June, 2020. Ed.: J. Lobo ., 81–92, International Foundation for Autonomous Agents and Multiagent Systems, Richland (SC). doi:10.1145/3381991.3395399
A Glimpse of the Matrix – Scalability issues of a new message-oriented data synchronization middleware [in press].
Jacob, F.; Grashöfer, J.; Hartenstein, H.
2019. Proceedings of the 20th International Middleware Conference Demos and Posters - Middleware ’19, 5–6, ACM Press, New York, New York, USA. doi:10.1145/3366627.3368106
Towards Application of Cuckoo Filters in Network Security Monitoring.
Grashöfer, J.; Jacob, F.; Hartenstein, H.
2018. 14th International Conference on Network and Service Management (CNSM), Rome, Italy, Nov. 5 - Nov. 9, 2018, 373–377, IEEE, Piscataway, NJ Full textFull text of the publication as PDF document
User-Centric Secure Data Sharing: Exploration of Concepts and Values.
Grashöfer, J.; Degitz, A.; Raabe, O.
2017. Informatik 2017 : 25.-29. September 2017 Chemnitz, Deutschland. Bd. 2. Hrsg.: M. Eibl, 1243–1258, Gesellschaft für Informatik, Bonn. doi:10.18420/in2017_126Full textFull text of the publication as PDF document
Title Source

BroCon'17, Urbana (IL), USA


  • IT-Security Management for Networked Systems (WS'16/17, WS'17/18, WS'18/19, WS'19/20)
  • Access Control Systems (SS'17, SS'18)


  • Access Control Systems Lab (SS'17, SS'18, SS'19)
  • KASTEL-Lab Security (WS'17/18)


  • Proof-of-X (WS'17/18)
  • SoK: Science, Security, and the Elusive Goal of Security as a Scientific Pursuit (SS'18)
  • Hot Topics in Decentralized Systems (SS'19)