M.Sc. Holger Mandry
I studied Information System Technology at the University of Ulm where I received my B.Sc. degree in 2015 and my M.Sc. in Mai 2018. During the Master I focused on Physical Unclonable Functions (PUFs) and wrote my thesis "Entwurf und Implementierung einer vollständig modularisierten PUF-Codierungskette auf einem SoC" at the Institute of Microelectronics.
Since August 2018 I am working as research assistant towards the Ph.D. degree under the supervision of Prof. Dr.-Ing Maurits Ortmanns. In my research I focus on the improvement of mixed-signal PUF implementations.
Projekte
Physical Unclonable Functions (PUFs)
H. Mandry: Im Lauf des letzten Jahrzehnts haben Physikalisch Unklonbare Funktionen (PUFs) sich als fester Bestandteil auf dem Gebiet der Kryptographie und der Authentifizierung etabliert. Diese basieren auf physikalischen Abweichungen, die sich aufgrund beschränkter Präzision während des Herstellungsprozess ergeben. PUFs bieten daher hervorragende Eigenschaften für die genannten Forschungsfelder, inbesondere Einzigartigkeit, Unvorhersagbarkeit und Unklonbarkeit ... [ mehr]
Studentische Arbeiten
[mt] = Masterarbeit, [rp] = Bachelorarbeit
Aktuelle Arbeiten
- Felix Vogel
Entwurf und Implementierung einer permutierten PUF Architektur auf FPGAs [rp]
Abgeschlossene Arbeiten
- Jonas Otto
Breaking Physical Unclonable Functions using Neural Networks [rp] - Viktor Schneider (Z)
PUF Hash Algorithmus zur Erstellung Kryptographischer Schlüssel [rp] - Zimin Chen
Implementation of a true random number generator on a FPGA [mt]
Publikationen
2021
10.
Müelich,
S.;
Mandry,
H.;
Ortmanns,
M.;
Fischer,
R.
A Multilevel Coding Scheme for Multi-Valued Physical Unclonable Functions
IEEE Transactions on Information Forensics and Security
Juni 2021
A Multilevel Coding Scheme for Multi-Valued Physical Unclonable Functions
IEEE Transactions on Information Forensics and Security
Juni 2021
| DOI: | 10.1109/TIFS.2021.3089883 |
9.
Mandry,
H.;
Müelich,
S.;
Becker,
J.;
Fischer,
R.;
Ortmanns,
M.
Using Polynomial Interpolation for Reproducing Multi-Valued Responses of Physical Unclonable Functions on FPGAs
IEEE International Symposium on Circuits and Systems (ISCAS)
Mai 2021
Using Polynomial Interpolation for Reproducing Multi-Valued Responses of Physical Unclonable Functions on FPGAs
IEEE International Symposium on Circuits and Systems (ISCAS)
Mai 2021
| DOI: | 10.1109/ISCAS51556.2021.9401501 |
2020
8.
Herkle,
A.;
Rossak,
P.;
Mandry,
H.;
Becker,
J.;
Ortmanns,
M.
Comparison of measurement and readout strategies for RO-PUFs on Xilinx Zynq-7000 SoC FPGAs
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
Oktober 2020
Comparison of measurement and readout strategies for RO-PUFs on Xilinx Zynq-7000 SoC FPGAs
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
Oktober 2020
7.
Herkle,
A.;
Mandry,
H.;
Becker,
J.;
Reich,
S.;
Sporer,
M.;
Ortmanns,
M.
Extracting Weak PUFs from Differential Nonlinearity of Digital-to-Analog Converters
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
Oktober 2020
Extracting Weak PUFs from Differential Nonlinearity of Digital-to-Analog Converters
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
Oktober 2020
6.
Herkle,
A.;
Mandry,
H.;
Becker,
J.;
Ortmanns,
M.
Live Demonstration: Generating FPGA Fingerprints utilizing Full-Chip Characterization with Ring-Oscillator PUFs
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
Oktober 2020
Live Demonstration: Generating FPGA Fingerprints utilizing Full-Chip Characterization with Ring-Oscillator PUFs
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
Oktober 2020
5.
Mandry,
H.;
Herkle,
A.;
Müelich,
S.;
Becker,
J.;
Fischer,
R.;
Ortmanns,
M.
Normalization and Multi-Valued Symbol Extraction from RO-PUFs for Enhanced Uniform Probability Distributions
IEEE Transactions on Circuits and Systems--II: Express Briefs
März 2020
Normalization and Multi-Valued Symbol Extraction from RO-PUFs for Enhanced Uniform Probability Distributions
IEEE Transactions on Circuits and Systems--II: Express Briefs
März 2020
| DOI: | 10.1109/TCSII.2020.2980748 |
2019
4.
Rajabzadeh,
M.;
Ungethüm,
J.;
Mandry,
H.;
Schilpp,
C.;
Wittekindt,
O.;
Ortmanns,
M.
An Evaluation Study of Various Excitation Signals for Electrical Impedance Spectroscopy
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
Mai 2019
An Evaluation Study of Various Excitation Signals for Electrical Impedance Spectroscopy
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
Mai 2019
3.
Chi,
J.;
Mandry,
H.;
Ortmanns,
M.
Finite Gain-Bandwidth of Q Enhancement in Bandpass CT ΣΔ Modulator and Compensation
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 1-5.
Mai 2019
Finite Gain-Bandwidth of Q Enhancement in Bandpass CT ΣΔ Modulator and Compensation
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 1-5.
Mai 2019
2.
Herkle,
A.;
Mandry,
H.;
Becker,
J.;
Ortmanns,
M.
In-depth Analysis and Enhancements of RO-PUFs with a Partial Reconfiguration Framework on Xilinx Zynq-7000 SoC FPGAs
IEEE International Symposium on Hardware Oriented Security and Trust (HOST), Tysons Corner, USA
Mai 2019
In-depth Analysis and Enhancements of RO-PUFs with a Partial Reconfiguration Framework on Xilinx Zynq-7000 SoC FPGAs
IEEE International Symposium on Hardware Oriented Security and Trust (HOST), Tysons Corner, USA
Mai 2019
| DOI: | 10.18725/OPARU-14107 |
1.
Mandry,
H.;
Herkle,
A.;
Kürzinger,
L.;
Müelich,
S.;
Becker,
J.;
Fischer,
R.;
Ortmanns,
M.
Modular PUF Coding Chain with High-Speed Reed-Muller Decoder
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
Mai 2019
Modular PUF Coding Chain with High-Speed Reed-Muller Decoder
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
Mai 2019
Wissenschaftl. Mitarbeiter
