Dr. Christoph Bösch

Christoph Bösch received his M.Sc. degree in IT-Security (System Security Group) from the University of Bochum, Germany, in 2008. The topic of his thesis focuses on physically unclonable functions and fuzzy extractors. In 2015, he received his Ph.D. degree in the Database & the Distributed and Embedded Security research groups at the University of Twente, The Netherlands. His PhD thesis focuses on privacy enhancing technologies, especially on searchable encryption. Since 2015 he is employed as a research assistant in the Institute of Distributed Systems at Ulm University. His research focuses on hardware security, applied cryptography, and privacy enhancing technologies.


  • Applied Cryptography
  • Privacy Enhancing Technologies
  • Cloud Security and Privacy
  • Searchable Encryption
  • Human Aspects of Security and Privacy


  • SAMPL (Bundesministerium für Wirtschaft und Energie)
  • PriCloud (Landesstifung Baden-Württemberg)
  • PRIPARE (EU FP7, completed)


  • Privacy Engineering and Privacy Enhancing Technologies (PETs) [WS15, WS16, WS17]
  • Practical IT-Security (PSEC) [SS16, SS17, SS18]


Dr. Christoph Bösch
Akademischer Mitarbeiter

Institut für Verteilte Systeme
Universität Ulm
Albert-Einstein-Allee 11
89081 Ulm

Email: christoph.boesch(at)uni-ulm.de
Room: O27-347
Telephone: +49 731 50-24175

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GPG fingerprint: B196 E85F 4A97 FDCF CC45 E734 EC2D 24F2 551E 4954


  • Henning Kopp, David Mödinger, Franz Hauck, Frank Kargl, and Christoph Bösch. "Design of a Privacy-Preserving Decentralized File Storage with Financial Incentives." Accepted at IEEE Security & Privacy on the Blockchain, IEEE S&B (affiliated with EUROCRYPT & EuroS&P), Paris, France, April 26-28, 2017. 
  • Henning Kopp, Christoph Bösch, and Frank Kargl. "KopperCoin - A Distributed File Storage with Financial Incentives." In: 12th International Conference on Information Security Practice and Experience, ISPEC, Zhangjiajie, China, November 16-18, 2016.
  • Christoph Bösch, Benjamin Erb, Frank Kargl, Henning Kopp, and Stefan Pfattheicher. "Tales from the Dark Side: Privacy Dark Strategies and Privacy Dark Patterns." Proceedings on Privacy Enhancing Technologies, PoPETS 2016, Issue 4, Pages 237–254, July, 2016.
  • Matthias Matousek, Christoph Bösch, and Frank Kargl. "Using Searchable Encryption to Protect Privacy in Connected Cars." Fachgespräch Inter-Vehicle Communication 2016, Berlin, Germany, March 2016. 
  • Christoph Bösch. "Cryptographically Enforced Search Pattern Hiding." PhD thesis, University of Twente, January 2015.
  • Christoph Bösch, Pieter Hartel, Willem Jonker, and Andreas Peter. "A Survey of Provably Secure Searchable Encryption." ACM Computing Surveys, 47(2), 18:1-18:51, August 2014.
  • Christoph Bösch, Andreas Peter, Bram Leenders, Hoon Wei Lim, Qiang Tang, Huaxiong Wang, Pieter Hartel, and Willem Jonker. "Distributed Searchable Symmetric Encryption." In: Twelfth Annual International Conference on Privacy, Security and Trust, PST 2014, Toronto, Canada, 23-24 July, 2014.
  • Christoph Bösch, Andreas Peter, Pieter Hartel, and Willem Jonker. "SOFIR: Securely Outsourced Forensic Image Recognition." In: 39th IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP 2014, Florence, Italy, May 4-9, 2014.
  • Christoph Bösch, Richard Brinkman, Pieter Hartel, and Willem Jonker. "Method and System of Monitoring a Data Stream." (2012) Patent NL2009845.
  • Jonathan Petit, Christoph Bösch, Michael Feiri, and Frank Kargl. "On the Potential of PUF for Pseudonym Generation in Vehicular Networks." In: IEEE Vehicular Networking Conference — VNC 2012, Seoul, Korea (South), November 14-16, 2012, Proceedings, IEEE, pp. 94 - 100.
  • Christoph Bösch, Qiang Tang, Pieter Hartel, and Willem Jonker. "Selective Document Retrieval from Encrypted Database." In: 15th Information Security Conference — ISC 2012, Passau, Germany, September 19 - 21, 2012, Proceedings, ser. LNCS, D. Gollmann and F.C. Freiling (Eds.), vol. 7483. Springer, pp. 224 - 241.
  • Christoph Bösch, Richard Brinkman, Pieter Hartel, and Willem Jonker. "Conjunctive Wildcard Search over Encrypted Data." In: 8th VLDB Workshop on Secure Data Management — SDM 2011, Seattle, WA, USA, September 2, 2011, Proceedings, ser. LNCS, W. Jonker and M. Petkovic (Eds.), vol. 6933. Springer, pp. 114–127.
  • Christoph Bösch, Jorge Guajardo, Ahmad-Reza Sadeghi, Jamshid Shokrollahi, and Pim Tuyls. "Efficient Helper Data Key Extractor on FPGAs." In: Cryptographic Hardware and Embedded Systems — CHES 2008, Washington, DC, USA, August 10 - 13, 2008, Proceedings, ser. LNCS, E. Oswald and P. Rohatgi (Eds.), vol. 5154. Springer, pp. 181–197.
  • Christoph Bösch. "Efficient Fuzzy Extractors for Reconfigurable Hardware." Master’s thesis, Chair for System Security, Department of Electrical Engineering and Information Science, Ruhr-University Bochum, March 2008.