Publications

Journal Publications H. Langhuth, S. Frederick, M. Kanniber, J. Finley, U. Rührmair: Strong Photoluminescence Enhancement from Colloidal Quantum Dots near Silver Nano-Island Films. Journal of Fluorescence, 2010. C. Jaeger, M. Algasinger, U. Rührmair, G. Csaba, M. Stutzmann: Random p-n-junctions for physical cryptography. Applied Physics Letters 96, 172103 (2010). C. Jaeger, T. Matsui, M. Takeuchi, M. Karasawa, M. Kondo, M. Stutzmann: „Thin Film Solar Cells Prepared on Low Thermal Budget Polycrystalline Silicon Seed Layers”. Japanese Journal of Applied Physics, 2010. Frank Sehnke, Christian Osendorfer, Thomas Rückstieß, Alex Graves, Jan Peters, and Jürgen Schmidhuber. Parameter-exploring policy gradients. Neural Networks, 23(2), March 2010. Thomas Rückstieß, Frank Sehnke, Tom Schaul, Daan Wierstra, Sun Yi, and Jürgen Schmidhuber. Exploring parameter space in reinforcement learning. Paladyn Journal of Behavioral Robotics, 1(1):14-24, 2010. Tom Schaul, Justin Bayer, Daan Wierstra, Yi Sun, Martin Felder, Frank Sehnke, Thomas Rückstieß, and Jürgen Schmidhuber. PyBrain. Journal of Machine Learning Research, 2010. Q. Chen, G. Csaba, P. Lugli, U. Schlichtmann, M. Stutzmann, U. Rührmair: Circuit-based Approaches to SIMPL Systems. Journal of Circuits, Systems and Computers, 2011. U. Rührmair, C. Jaeger, M. Bator, M. Stutzmann, P. Lugli, G. Csaba: Applications of High-Capacity Crossbar Memories in Cryptography. IEEE Transactions on Nanotechnology, 2011. P. Lugli, A. Mahmoud, G. Csaba, M. Algasinger, M. Stutzmann, U. Rührmair: Physical Unclonable Functions based on Crossbar Arrays for Cryptographic Applications. International Journal of Circuit Theory and Applications. To appear, 2012. Conference Publications Q. Chen, G. Csaba, X. Ju, S.B. Natarajan, P. Lugli, M. Stutzmann, U. Schlichtmann, U. Rührmair: Analog Circuits for Physical Cryptography. 12th International Symposium on Integrated Circuits (ISIC2009), Singapore, December 14 – 16, 2009. (This paper received the Best Paper Award.) M. Steinebach, S. Zmudsinski, S. Katzenbeisser, U. Rührmair: Audio watermarking forensics: detecting malicious re-embedding. Proceedings of IS&T SPIE Electronic Imaging 2010 Conference - Media Forensics and Security XII, San Jose, CA, USA, January 17 – 21, 2010. U. Rührmair, C. Jaeger, C. Hilgers, M. Algasinger, G. Csaba, M. Stutzmann: Security Applications of Diodes with Unique Current-Voltage Characteristics. 14th International Conference on Financial Cryptography and Data Security, Tenerife (Spain), January 25-28, 2010. Lecture Notes in Computer Science, Volume 6052. Springer, 2010. G. Csaba, X. Ju, Z. Ma, Q. Chen, W. Porod, J. Schmidhuber, U. Schlichtmann, P. Lugli, U. Rührmair: Application of Mismatched Cellular Nonlinear Networks for Physical Cryptography. 12th IEEE CNNA – International Workshop on Cellular Nanoscale Networks and their Applications, Berkeley, CA, USA, February 3 – 5, 2010. U. Rührmair, Q. Chen, M. Stutzmann, P. Lugli, U. Schlichtmann, G. Csaba: Towards Electrical, Integrated Implementations of SIMPL Systems. Workshop in Information Security Theory and Practice (WISTP 2010), Passau (Germany), 2010. Lecture Notes in Computer Science, Volume 6033, pp. 277 – 292. Springer, 2010. U. Rührmair, S. Katzenbeisser, M. Steinebach, S. Zmudzinski: Watermark-Based Authentication and Key Exchange in Teleconferencing Systems. Communications and Multimedia Security, Linz (Austria), May 31 – June 2, 2010. Lecture Notes in Computer Science, Volume 6109, pp. 75 – 80. Springer, 2010. U. Rührmair: Oblivious Transfer based on Physical Unclonable Functions (Extended Abstract). Third International Conference on Trust and Trustworthy Computing, Berlin (Germany), June 21-23, 2010. Lecture Notes in Computer Science, Volume 6101, pp. 430 – 440. Springer, 2010. F. Sehnke, C. Osendorfer, J. Sölter, J. Schmidhuber, U. Rührmair: Policy Gradients for Cryptanalysis. 20th International Conference on Artificial Neural Networks (ICANN 2010), Thessaloniki, Greece, September 15-18, 2010. Proceedings, Part III. Lecture Notes in Computer Science, Volume 6354. Springer, 2010. Mandy Grüttner, Frank Sehnke, Tom Schaul, and Jürgen Schmidhuber. Multi-dimensional deep memory go-player for parameter exploring policy gradients. In W. Duch K. Diamantaras and L. Iliadis, editors, Proceedings of the International Conference on Artificial Neural Networks, ICANN 2010. Springer-Verlag Berlin Heidelberg, 2010. Frank Sehnke, Alex Graves, Christian Osendorfer, and Jürgen Schmidhuber. Multimodal parameter-exploring policy gradients. In Bob Werner, editor, Proceedings of the ninth International Conference on Machine Learning and Applications, ICMLA 2010, 2010. U. Rührmair, F. Sehnke, J. Sölter, G. Dror, S. Devadas, J. Schmidhuber: Modeling Attacks on Physical Unclonable Functions. 17th ACM Conference on Computer and Communications Security, Chicago (Illinois), October 4-8, 2010. U. Rührmair: SIMPL Systems, Or: Can We Design Cryptographic Hardware without Secret Key Information? 37th Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM 2011), Nový Smokovec, Slovakia, January 22-28, 2011. Lecture Notes in Computer Science, Volume 6543, Springer, 2011. U. Rührmair, C. Jaeger, M. Algasinger: An Attack on PUF-based Session Key Exchange, and a Hardware-based Countermeasure: Erasable PUFs. 15th International Conference on Financial Cryptography and Data Security, St. Lucia, February 28 – March 4, 2011. Q. Chen, G. Csaba, P. Lugli, U. Schlichtmann, U. Rührmair: The Bistable Ring PUF: A New Architecture for Strong Physical Unclonable Functions. HOST 2011. Q. Chen, G. Csaba, P. Lugli, U. Schlichtmann, U. Rührmair: Characterization of the Bistable Ring PUF. DATE 2012. U. Rührmair, M. van Dijk: Practical Security Analysis of PUF-based Two-Player Protocols. CHES 2012. Posters H. Langhuth, U. Rührmair, J. Finley: Complex Nano-Plasmonic Hybrid Materials As Unique Objects in Physical Cryptography. 5th NTT-BRL school at NTT Atsugi R&D Center, Atsugi, Kanagawa, Japan, November 24-27, 2009. A. Schwemer, U. Rührmair, U. Rant: Random Nanoparticle Patterns as Unique Optical Labels for Secure Identification. DPG Frühjahrstagung, Dresden, Germany, March 18, 2011. Preprints U. Rührmair: SIMPL Systems: On a Public Key Variant of Physical Unclonable Functions. Cryptology ePrint Archive, Report 2009/255, 2009. U. Rührmair, J. Sölter, F. Sehnke: On the Foundations of Physical Unclonable Functions. Cryptology ePrint Archive, Report 2009/277, 2009. U. Rührmair, Q. Chen, P. Lugli, U. Schlichtmann, M. Stutzmann, G. Csaba: Towards Electrical, Integrated Implementations of SIMPL Systems. Cryptology ePrint Archive, Report 2009/278, 2009. G. Csaba, X. Ju, Q. Chen, W. Porod, J. Schmidhuber, U. Schlichtmann, P. Lugli, U. Rührmair: On-Chip Electric Waves: An Analog Circuit Approach to Physical Unclonable Functions. Cryptology ePrint Archive, Report 2009/246, 2009. U. Rührmair, F. Sehnke, J. Sölter, G. Dror, S. Devadas, J. Schmidhuber: Modeling Attacks on Physical Unclonable Functions. Cryptology ePrint Archive, Report 2010/251, 2010. U. Rührmair: Physical Turing Machines and the Formalization of Physical Cryptography. Cryptology ePrint Archive, Report 2011/188, 2011. U. Rührmair: SIMPL Systems as a Keyless Cryptographic and Security Primitive. Cryptology ePrint Archive, Report 2011/189, 2011. M. van Dijk, U. Rührmair: Physical Unclonable Functions in Cryptographic Protocols: Security Proofs and Impossibility Theorems. Cryptology ePrint Archive, Report 2012/228, 2012. Invited Talks at Conferences Ulrich Rührmair: On the Formal Foundations of Physical Unclonable Functions. Security Hardware in Theory and Practice – A Marriage of Convenience. Event 08253, Schloss Dagstuhl, Germany, 2008. Ulrich Rührmair: Physical Cryptography, Or: How to Realize Cryptography and Security by Random, Disordered, and Unclonable Physical Structures. 37th Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM 2011), Slovakia, 2011. Invited Book Chapters U. Rührmair, H. Busch, S. Katzenbeisser: Strong PUFs: Models, Constructions and Security Proofs. In A.-R. Sadeghi, P. Tuyls (Editors): “Towards Hardware Intrinsic Security: Foundation and Practice”. Springer, 2010. U. Rührmair, S. Devadas, F. Koushanfar: Security based on Physical Unclonability and Disorder. In M. Tehranipoor and C. Wang (Editors): “Introduction to Hardware Security and Trust”. Springer, 2011. U. Rührmair: SIMPL Systems as a Keyless Cryptographic and Security Primitive. In: D. Naccache (Ed.), Festschrift of J.-J. Quisquater, Lecture Notes in Computer Science, Vol. 6805, Springer, 2012.

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