Projekt
M.Sc. Holger Mandry
Ich habe Informationssystemtechnik an der Universität Ulm studiert, wo ich 2015 meinen B.Sc. Abschluss und im Mai 2018 meinen M.Sc. erhielt. Während des Masterstudiums habe ich mich auf Physikalische Unklonbare Funktionen (PUFs) konzentriert und am Institut für Mikroelektronik meine Diplomarbeit "Entwurf und Implementierung einer vollstädtig modulariserten PUF-Codierungskette auf einem SoC" geschrieben.
Seit August 2018 arbeite ich als wissenschaftlicher Mitarbeiter im Hinblick auf den Ph.D. Abschluss unter der Betreuung von Prof. Dr.-Ing Maurits Ortmanns. In meiner Forschung konzentriere ich mich auf die Verbesserung von Mixed-Signal-PUF-Implementierungen.
Publikationen
2025
19.
Conrad,
J.;
Wilhelmstätter,
S.;
Mandry,
H.;
Kässer,
P.;
Abdelaal,
A.;
Asthana,
R.;
Belagiannis,
V.;
Ortmanns,
M.
PSumSim: A Simulator for Partial-Sum Quantization in Analog Matrix-Vector Multipliers
IEEE International Symposium on Circuits and Systems (ISCAS), London, United Kingdom, pp. 1-5
Mai 2025
PSumSim: A Simulator for Partial-Sum Quantization in Analog Matrix-Vector Multipliers
IEEE International Symposium on Circuits and Systems (ISCAS), London, United Kingdom, pp. 1-5
Mai 2025
| DOI: | 10.1109/ISCAS56072.2025.11043442 |
18.
Driemeyer,
B.;
Mandry,
H.;
Wiens,
D.-P.;
Becker,
J.;
Kauffman,
J. G.;
Ortmanns,
M.
17.5 An Eye-Opening Arbiter PUF for Fingerprint Generation Using Auto-Error Detection for PVT-Robust Masking and Bit Stabilization Achieving a BER of 2e-8 in 28nm CMOS
IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA
Februar 2025
17.5 An Eye-Opening Arbiter PUF for Fingerprint Generation Using Auto-Error Detection for PVT-Robust Masking and Bit Stabilization Achieving a BER of 2e-8 in 28nm CMOS
IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA
Februar 2025
17.
Mayer,
M.;
Reich,
S.;
Mandry,
H.;
Ortmanns,
M.
A Rapid-Prototyping Platform for Active Stents Utilizing Device Decapsulation for Miniaturization
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Januar 2025
A Rapid-Prototyping Platform for Active Stents Utilizing Device Decapsulation for Miniaturization
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Januar 2025
| DOI: | 10.1109/ICECS61496.2024.10848908 |
16.
Mandry,
H.;
Driemeyer,
B.;
Becker,
J.;
Ortmanns,
M.
Investigation of the Influence of Multi-Valued Symbol Extraction on PUF Randomness
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Januar 2025
Investigation of the Influence of Multi-Valued Symbol Extraction on PUF Randomness
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Januar 2025
| DOI: | 10.1109/ICECS61496.2024.10849251 |
15.
Mandry,
H.;
Ruchti,
J.;
Nowakowski,
J.;
Pehl,
M.;
Ortmanns,
M.
Protection of Oscillator-Based PUFs against Side Channel Analyses by Random Interruption
IACR Transactions on Cryptographic Hardware and Embedded Systems, Vol. 2025 No. 2, 460-488
2025
Protection of Oscillator-Based PUFs against Side Channel Analyses by Random Interruption
IACR Transactions on Cryptographic Hardware and Embedded Systems, Vol. 2025 No. 2, 460-488
2025
| DOI: | 10.46586/tches.v2025.i2.460-488 |
2024
14.
Driemeyer,
B.;
Mandry,
H.;
Wiens,
D.-P.;
Becker,
J.;
Ortmanns,
M.
Optimisation of RO-PUF Design Parameters for Minimising the Effective Area per PUF Bit
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
Mai 2024
Optimisation of RO-PUF Design Parameters for Minimising the Effective Area per PUF Bit
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
Mai 2024
| DOI: | 10.1109/ISCAS58744.2024.10558478 |
2023
13.
Driemeyer,
B.;
Kässer,
P.;
Mandry,
H.;
Wiens,
D.-P.;
Ortmanns,
M.
A Feasibility Study on a Switched-Capacitor Based PUF in 28 nm Technology
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye
Dezember 2023
A Feasibility Study on a Switched-Capacitor Based PUF in 28 nm Technology
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye
Dezember 2023
| DOI: | 10.1109/ICECS58634.2023.10382899 |
2022
12.
Sporer,
M.;
Reich,
S.;
Mandry,
H.;
Becker,
J.;
Ortmanns,
M.
A Wireless Headstage Prototype Based on a Neurorecorder IC
IEEE Biomedical Circuits and Systems Conference (BioCAS), Taipei, Taiwan
Oktober 2022
A Wireless Headstage Prototype Based on a Neurorecorder IC
IEEE Biomedical Circuits and Systems Conference (BioCAS), Taipei, Taiwan
Oktober 2022
| DOI: | 10.1109/BioCAS54905.2022.9948554 |
11.
Driemeyer,
B.;
Mandry,
H.;
Wiens,
D.-P.;
Becker,
J.;
Ortmanns,
M.
PUF-Entropy Extraction of DAC Intersymbol-Interference using Continuous-Time Delta-Sigma ADCs
IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Oktober 2022
PUF-Entropy Extraction of DAC Intersymbol-Interference using Continuous-Time Delta-Sigma ADCs
IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Oktober 2022
| DOI: | 10.1109/ICECS202256217.2022.9971072 |
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
