Dr. Ing. Nikolaos Athanasios Anagnostopoulos

Photo: Nikolaos Athanasios Anagnostopoulos

Room 116, IT-Zentrum / International House (ITZ/IH)
University of Passau, Innstr. 43
94032 Passau
Bavaria, Germany

Phone: +49 851 509 3045 / 0851 509 3045
E-Mail: nikolaos.anagnostopoulos@uni-passau.de
Homepage: https://www.anagnostopoulos.academy

Please address your first emails to Mr. Anagnostopoulos in a semi-formal business manner. When in doubt, use: https://site.uit.no/english/writing-style/letters/. Please make sure that your emails include all relevant information and make sense!

You can find the available thesis topics at https://www.anagnostopoulos.academy/public/teaching/ under "Open thesis topics".

Current Activities

I am currently a research assistant at the chair of computer engineering (and also Habilitand) at the University of Passau under the direction of Prof. Dr. Stefan Katzenbeisser. Before that, I was a research assistant and a PhD student at the Technical University of Darmstadt under the direction of Prof. Dr. Stefan Katzenbeisser. I have worked in the DFG Projects CROSSING P3, NanoSec, and PUFMem. I am also currently the Chair of the German Chapter of the IEEE Consumer Technology Society, the Vice Chair of the German Chapter of the IEEE Circuits and Systems Society, of the German Chapter of the IEEE Computational Intelligence Society, and of the German Chapter of the IEEE Vehicular Technology Society, and the Secretary of the German Chapter of the IEEE Solid-State Circuits Society. Finally, I am also the current Chair of the Greek university group at the University of Passau.

Research Interests

Hardware Security
Physical Security
Security in the area of the Internet of Things
Embedded Systems
Physical Unclonable Functions (Physical Unique Functions) & True Random Number Generators
Chaos-Based Security
Vehicular Communication Security
Optical Side Channels & Fault Injection
Fuzzy Extractors and Error Correction
System Security
Sensor-Based security
Security Protocols
Machine-Learning-Based Authentication & Security

Teaching

WiSe 25/26

SoSe 25

WiSe 24/25

Publications

Refereed Publications

Non-Refereed Publications

E-Prints
Conferences, Workshops, Conventions & Symposia
- N. A. Anagnostopoulos, A. Schaller, Y. Fan, W. Xiong, F. Tehranipoor, T. Arul, S. Gabmeyer, J. Szefer, J. A. Chandy & S. Katzenbeisser, "Insights Into the Potential Usage of the Initial Values of DRAM Arrays of Commercial Off-the-Shelf Devices for Security Applications", 26th Crypto-Day, 1-2 June 2017, Nürnberg, Germany. [DOI (presentation slides):10.13140/RG.2.2.21396.50569][DOI (manuscript):10.13140/RG.2.2.27089.63849]
- R. Sarangdhar, Y. Fan, N. A. Anagnostopoulos, U. Gayer, F. Flederer, T. Mikschl, T. Arul, P. R. John, K. Hierholz, S. Montenegro & S. Katzenbeisser, "An Investigation of the Effects of Radiation on Current Key Storage Solutions and on Physical Unclonable Functions (PUFs) Being Used as Key Storage", 27th Crypto-Day, 7-8 December 2017, Frankfurt (Oder), Germany. [DOI:10.13140/RG.2.2.33800.52483]
- N. A. Anagnostopoulos, S. Gabmeyer, T. Arul & S. Katzenbeisser, "An Extensive Classification and Analysis of Attacks Against Physical Unclonable Functions (PUFs)", 27th Crypto-Day, 7-8 December 2017, Frankfurt (Oder), Germany. [DOI:10.13140/RG.2.2.25411.91689]
- N. A. Anagnostopoulos, T. Arul, Y. Fan, C. Hatzfeld, F. Tehranipoor & S. Katzenbeisser, "Addressing the Effects of Temperature Variations on Intrinsic Memory-Based Physical Unclonable Functions", 28th Crypto-Day, 7-8 June 2018, Kirchheim bei München, Germany. [In: Loebenberger, D. & Nüsken, M. (Editors), crypto day matters 28. Bonn: Gesellschaft für Informatik e.V. / FG KRYPTO.]
- M. Kumar, N. A. Anagnostopoulos, Y. Fan & S. Katzenbeisser, "Advanced Reconfigurable Physical Unclonable Functions (AR-PUFs) and Their Security Applications", 28th Crypto-Day, 7-8 June 2018, Kirchheim bei München, Germany. [In: Loebenberger, D. & Nüsken, M. (Editors), crypto day matters 28. Bonn: Gesellschaft für Informatik e.V. / FG KRYPTO.]
- N. A. Anagnostopoulos, T. Arul, Y. Fan, R. Sarangdhar, R. Sharma, M. Rosenstihl, C. Hatzfeld, F. Tehranipoor & S. Katzenbeisser, "On the Effects of Environmental Factors on the Functionality of Modern Dynamic Random Access Memory Modules", 7th International Conference "Micro&Nano" 2018, 5-7 November 2018, Thessaloniki, Greece.
  - Not included in the proceedings.
- W. Xiong, A. Schaller, N. A. Anagnostopoulos, M. U. Saleem, S. Gabmeyer, S. Katzenbeisser & J. Szefer, Top Pick Candidate Paper: "Run-Time Accessible DRAM PUFs in Commodity Devices" [presented in the 18th International Conference on Cryptographic Hardware and Embedded Systems (CHES 2016)], 2019 Workshop on Top Picks in Hardware and Embedded Security, 7 November 2019, Westminster, Colorado, United States of America.
  - Proceedings not published.
- D. Püllen, N. A. Anagnostopoulos, T. Arul & S. Katzenbeisser, "ISA-62443 in the Automotive Context: Threat Identification and Mitigation for a Novel Vehicular Architecture", 9. Tagung Automatisiertes Fahren, 21-22 November 2019, München, Germany. [Program]
  - Proceedings not published.
- N. Mexis, N. A. Anagnostopoulos, T. Arul, F. Frank & S. Katzenbeisser, "Fuzzy Extractors using Low-Density Parity-Check Codes", 33rd Crypto-Day, 17 September 2021, online. [In: Gazdag, S.-L., Tiepelt, M., Loebenberger, D. & Nüsken, M. (Editors), crypto day matters 33. Bonn: Gesellschaft für Informatik e.V. / FG KRYPTO.]
- S. Böttger, F. Frank, N. A. Anagnostopoulos, T. Arul, S. Katzenbeisser & S. Hermann, "Development of Nanomaterial-Based Physically Unclonable Functions and Dedicated Measurement and Testing Devices", Fall School on Nano-Electronics for Secure Systems (NESSY), 10-11 November 2021, Lübeck, Germany.
  - Proceedings not published.
- N. A. Anagnostopoulos, Y. Fan, M. U. Saleem, N. Mexis, F. Frank, T. Arul & S. Katzenbeisser, "On the Sustainability of Lightweight Cryptography Based on Flash PUFs", Workshop on "Sustainability in Security & Security for Sustainability" (co-located with the 25th Design, Automation and Test in Europe Conference & Exhibition (DATE 2022) as Workshop 09), 18 March 2022, online.
  - Proceedings not published. Links to relevant preprint versions of this work: [TechRxiv][arXiv]
- E. Gelóczi, N. Mexis, N. A. Anagnostopoulos, F. Frank, T. Arul, S. G. Stavrinides & S. Katzenbeisser, "Secure Communication via Chaotic Cryptography", 34th Crypto-Day, 9-10 June 2022, Weiden in der Oberpfalz, Germany. [In: Loebenberger, D. & Nüsken, M. (Editors), crypto day matters 34. Bonn: Gesellschaft für Informatik e.V. / FG KRYPTO.]
- E. Nazarenko, N. A. Anagnostopoulos, S. G. Stavrinides F. Frank, T. Arul & S. Katzenbeisser, "Real-World Chaos-Based Cryptography Using Synchronised Chua Chaotic Circuits", 2022 IEEE International Symposium on Hardware Oriented Security and Trust (HOST 2022), 27-30 June 2022, Washington, DC, USA.
  - Hardware demo. Not published in the proceedings. Link to relevant preprint versions of this work: [TechRxiv][arXiv]
- E. Gelóczi, N. A. Anagnostopoulos, N. Mexis, Y. Fan, M. U. Saleem, A. Schaller, F. Klement, F. Frank, T. Arul & S. Katzenbeisser, "Testing the Robustness of Physical Unclonable Functions Implemented on Commercial Off-the-Shelf NAND Flash Memories Using Programming Disturbances to Temperature and Voltage Variations" [presented in the 2022 IEEE 12th International Conference on Consumer Electronics - Berlin (ICCE-Berlin 2022)], 11th International Workshop on Cryptography, Robustness, and Provably Secure Schemes for Female Young Researchers (CrossFyre 2022), 6-7 October 2022, Passau, Germany.
  - Proceedings not published.
- S. Böttger, F. Frank, N. A. Anagnostopoulos, A. Mohamed, M. Hartmann, T. Arul, S. Hermann & S. Katzenbeisser, "CNT-PUFs: Highly Robust Physical Unclonable Functions Based on Carbon Nanotubes", Poster for the Project "NANOSEC: Tamper-Evident PUFs based on Nanostructures for Secure and Robust Hardware Security Primitives" of the DFG Priority Program 2253: "Nano-Security: From Nano-Electronics to Secure Systems", Workshop on "Nano-Security: From Nano-Electronics to Secure Systems" (co-located with the 26th Design, Automation and Test in Europe Conference & Exhibition (DATE 2023) as Workshop 03), 18 April 2023, Antwerp, Belgium.
  - Proceedings not published.
- N. A. Anagnostopoulos, T. Arul, S. Böttger, F. Frank, A. Mohamed, M. Hartmann, S. Hermann & S. Katzenbeisser, "Carbon-Nanotube-Based Physical Unclonable Functions and True Random Number Generators", Workshop on "Nano-Security: From Nano-Electronics to Secure Systems" (co-located with the 26th Design, Automation and Test in Europe Conference & Exhibition (DATE 2023) as Workshop 03), 18 April 2023, Antwerp, Belgium.
  - Proceedings not published.
- Ν. Mexis, Ν. Α. Anagnostopoulos, Τ. Arul, Ε. Β. Kavun & S. Katzenbeisser, "An Improved Machine-Learning Model for the Identification and Classification of Memory-Based PUF Responses", 35th Crypto-Day, 25-26 May 2023, Regensburg, Germany. [In: Loebenberger, D. & Nüsken, M. (Editors), crypto day matters 35. Bonn: Gesellschaft für Informatik e.V. / FG KRYPTO.]
- N. A. Anagnostopoulos, N. Mexis, S. Katzenbeisser, E. B. Kavun & T. Arul, "Neuromorphic and In-Memory Computing Based on Memristive Circuits for Predictive Maintenance and Supply-Chain Management and Security", Workshop on "Nano-Security: From Nano-Electronics to Secure Systems" (co-located with the 27th Design, Automation and Test in Europe Conference & Exhibition (DATE 2024) as Workshop 03), 25 March 2024, Valencia, Spain.
  - Proceedings not published.
- N. Mexis, N. A. Anagnostopoulos, S. Katzenbeisser & T. Arul, "An Analysis of the Effects of Temperature on the Performance of ReRAM-Based TRNGs", Workshop on "Nano-Security: From Nano-Electronics to Secure Systems" (co-located with the 27th Design, Automation and Test in Europe Conference & Exhibition (DATE 2024) as Workshop 03), 25 March 2024, Valencia, Spain.
  - Proceedings not published.
- A. Tekles, T. Arul, N. Mexis, S. Katzenbeisser & N. A. Anagnostopoulos, "Memristors in the Context of Security and AI", Workshop on "Nano-Security: From Nano-Electronics to Secure Systems" (co-located with the 27th Design, Automation and Test in Europe Conference & Exhibition (DATE 2024) as Workshop 03), 25 March 2024, Valencia, Spain.
  - Proceedings not published.
- Ν. Mexis, Ν. Α. Anagnostopoulos, Τ. Arul & S. Katzenbeisser, Stefan, "An Analysis of the Effects of Temperature on the Performance of ReRAM-Based TRNGs", 36th Crypto-Day, 14-15 March 2024, Karlsruhe, Germany. [In: Loebenberger, D. & Nüsken, M. (Editors), crypto day matters 36. Bonn: Gesellschaft für Informatik e.V. / FG KRYPTO.]
Data Sets
- W. Xiong, A. Schaller, N. A. Anagnostopoulos, M. U. Saleem, S. Gabmeyer, S. Katzenbeisser & J. Szefer, "DRAM Decay PUF & DRAM Rowhammer PUF", Trust-Hub, 2018.
- T. Arul, N. Mexis, N. A. Anagnostopoulos, "NIST test results for the paper "Towards a Practical Runtime-Accessible True Random Number Generator Based on Commercial Off-The-Shelf Resistive Random Access Memory Modules"", IEEE Dataport, 2024.
Encyclopedia Entries
- N. A. Anagnostopoulos, "Physical Unclonable Function", MDPI Encyclopedia, 2023.
- N. A. Anagnostopoulos, N. Mexis & T. Arul, "Random Number Generation", MDPI Encyclopedia, 2023.

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