dr.ing. F.W. Hahn (Florian)

Assistant Professor


Engineering & Materials Science
Query Processing


Dijkslag, M., Damie, M. , Hahn, F. , & Peter, A. (2022). Passive Query-Recovery Attack Against Secure Conjunctive Keyword Search Schemes. In G. Ateniese, & D. Venturi (Eds.), Conference Proeedings Applied Cryptography and Network Security (pp. 126-146). Springer. https://doi.org/10.1007/978-3-031-09234-3_7
Groot Roessink, R. , Peter, A. , & Hahn, F. (2021). Experimental Review of the IKK Query Recovery Attack: Assumptions, Recovery Rate and Improvements. In K. Sako, & N. O. Tippenhauer (Eds.), Applied Cryptography and Network Security: 19th International Conference, ACNS 2021, Kamakura, Japan, June 21–24, 2021, Proceedings (Vol. I, pp. 155-183). (Lecture Notes in Computer Science; Vol. 12727). Springer. https://doi.org/10.1007/978-3-030-78375-4_7
Damie, M. , Hahn, F. , & Peter, A. (2021). A highly accurate query-recovery attack against searchable encryption using non-indexed documents. In Proceedings of the 30th USENIX Security Symposium (pp. 143-160). USENIX Association. https://www.usenix.org/conference/usenixsecurity21/presentation/damie
Bassit, A. , Hahn, F., Peeters, J. , Kevenaar, T. , Veldhuis, R. , & Peter, A. (2021). Fast and Accurate Likelihood Ratio Based Biometric Verification Secure Against Malicious Adversaries. IEEE transactions on information forensics and security, 16, 5045-5060. https://doi.org/10.1109/TIFS.2021.3122823
Bassit, A. , Hahn, F. , Zeinstra, C. , Veldhuis, R. , & Peter, A. (2021). Bloom Filter vs Homomorphic Encryption: Which approach protects the biometric data and satisfies ISO/IEC 24745? In BIOSIG 2021 - Proceedings of the 20th International Conference of the Biometrics Special Interest Group: 15.-17. September 2021 International Digital Conference IEEE. https://doi.org/10.1109/BIOSIG52210.2021.9548304
Hackenjos, T. , Hahn, F., & Kerschbaum, F. (2020). SAGMA: Secure Aggregation Grouped by Multiple Attributes. In D. Maier, R. Pottinger, A. Doan, W-C. Tan, A. Alawini, & H. Q. Ngo (Eds.), SIGMOD'20: Proceedings of the 2020 ACM SIGMOD International Conference on Management of Data, June 2020 (pp. 587–601). ACM Publishing. https://doi.org/10.1145/3318464.3380569

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Courses Academic Year  2022/2023

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses Academic Year  2021/2022

Contact Details

Visiting Address

University of Twente
Faculty of Electrical Engineering, Mathematics and Computer Science
Zilverling (building no. 11), room 2025
Hallenweg 19
7522NH  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Electrical Engineering, Mathematics and Computer Science
Zilverling  2025
P.O. Box 217
7500 AE Enschede
The Netherlands