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Berndt Gammel
Research interests:
Fault attacks, side-channel attacks, hardware and software countermeasures, physically observably cryptography,
coding theory, stream cipher design (to learn more about the stream cipher Achterbahn-128/80
click on the link to the left).
I also further develop and maintain the Matpack C++ numerical and data visualization library.
This is an ongoing effort since 1991. (Click on the link on the left side to enter the Matpack pages.)
Publications
- B. M. Gammel:
On Side-Channel and Fault Attack Resilient Cryptographic Protocols,
Proceedings of the 22nd Fraunhofer-SmartCard Workshop, February 8-9,
2012, (Ulrich Waldmann, ed.), Darmstadt, Germany. Fraunhofer
Verlag, pp. 16-23, ISBN: 978-3-8396-0347-5.
- B. M. Gammel and S. Mangard:
On the Duality of Probing and Fault Attacks,
Journal of Electronic Testing, Vol. 26, No. 4, 2010, pp. 483-493.
See also: Cryptology ePrint Archive, Report 2009/352,
(PDF)
- R. Göttfert and B. M. Gammel:
On the frame length of Achterbahn-128/80,
In: Proceedings of the 2007 IEEE Information Theory Workshop on Information Theory for Wireless Networks,
July 1-6, 2007, Solstrand, Norway, (T. Helleseth, V. Kumar, and Ø. Ytrehus, eds.),
pp. 91-95, ISBN 1-4244-1199-8, IEEE 2007.
(PDF)
- B. M. Gammel, R. Göttfert, and O. Kniffler:
Achterbahn-128/80: Design and Analysis,
In: Workshop Record of The State of the Art of Stream Ciphers - SASC 2007,
(Ruhr University Bochum, Germany, Jan 31 - Feb 1, 2007), pp. 152-165,
available at http://sasc.crypto.rub.de/files/sasc2007_record.zip, see also:
ECRYPT Stream Cipher Project, Report 2007/20.
(PDF) - reprint with minor corrections
- W. Fischer, B. M. Gammel, O. Kniffler, and J. Velten:
Differential Power Analysis of Stream Ciphers,
Topics in Cryptology - CT-RSA 2007, (M. Abe, ed.),
Lecture Notes in Computer Science, vol. 4377, pp. 257-270, Springer-Verlag, 2007.
(PDF)
- B. M. Gammel, R. Göttfert, and O. Kniffler:
ACHTERBAHN-128/80, 30. June 2006,
ECRYPT Stream Cipher Project, Report 2006.
(PDF)
- B. M. Gammel, R. Göttfert, and O. Kniffler:
Status of Achterbahn and Tweaks,
ECRYPT Stream Cipher Project, Report 2006/027,
available at http://www.ecrypt.eu.org/stream/papersdir/2006/027.pdf
(PDF)
- B. M. Gammel, R. Göttfert, and O. Kniffler:
Improved Boolean Combining Functions for Achterbahn,
ECRYPT Stream Cipher Project, Report 2005/072,
available at http://www.ecrypt.eu.org/stream/papersdir/072.pdf.
(PDF)
- W. Fischer and B. M. Gammel:
Masking at Gate Level in the Presence of Glitches,
Cryptographic Hardware and Embedded Systems - CHES 2005,
(J.R. Rao and B. Sunar, eds.), Lecture Notes in Computer
Science, vol. 3659, pp. 187-200, Springer-Verlag 2005.
(PDF)
- B. M. Gammel and S. Rüping:
Smart Cards Inside,
Proceedings of ESSCIRC 2005, 31st European Solid-State Circuits Conference,
(L. Fesquet, A. Kaiser, S. Cristoloveanu, and M. Brillouet, eds.),
pp. 69-74, Color Press, IEEE 2005, (invited lecture).
(PDF)
- B. M. Gammel, R. Göttfert and O. Kniffler:
The Achterbahn Stream Cipher, A Proposal for a PROFILE 2-Stream Cipher
to ECRYPT's Call for Stream Cipher Primitives,
ECRYPT Stream Cipher Project, Report 2005/002,
(Symmetric Key Encryption Workshop - SKEW 2005, Århus, Denmark, May 26-27, 2005).
(PDF)
- B. M. Gammel and R. Göttfert:
Linear Filtering of Nonlinear Shift-Register Sequences,
In Coding and Cryptography, Revised Selected Papers of the
International Workshop on Coding and Cryptography - WCC 2005,
Bergen, Norway, March 14-18, 2005,
(P. Charpin and Ø. Ytrehus, eds.),
Lecture Notes in Computer Science, vol. 3969, pp. 354-370, Springer-Verlag, 2006.
(PDF)
- S. Mangard, T. Popp, and B. M. Gammel:
Side-Channel Leakage of Masked CMOS Gates,
Topics in Cryptology - CT-RSA 2005, (A. Menezes, ed.),
Lecture Notes in Computer Science, vol. 3376, pp. 351-365, Springer-Verlag, 2005.
(PDF)
- B. M. Gammel and R. Göttfert:
Combining Certain Nonlinear Feedback Shift Registers,
In: Workshop Record of The State of the Art of Stream Ciphers - SASC 2004,
(Brugge, Belgium, Oct 14-15, 2004), pp. 234-248,
available at http://www.isg.rhul.ac.uk/research/projects/ecrypt/stvl/sasc-record.zip.
(PDF)
- F. Evers and B. M. Gammel:
Comment on "Analytic Structure of One-Dimensional Localization Theory: Re-Examining Mott's Law",
available at http://arxiv.org/abs/cond-mat/0010492, 31 Oct 2000.
(PDF)
- B. M. Gammel:
Hurst's Rescaled Range Statistical Analysis for Pseudorandom Number Generators used in Physical Simulations,
Phys. Rev. E 58, pp. 2586-2597, 1999.
(PDF)
- B. M. Gammel and F. Evers:
Universal Scaling and Diagonal Conductivity in the Integral Quantum Hall Effect,
Phys. Rev. B 57, pp. 14829-14832, 1998.
(PDF)
- W. Brenig, B. M. Gammel and P. Kratzer:
Low-frequency and long-wavelength anomalies of the integral quantum Hall Effect,
Z. Phys. B 103, pp. 417-421 (1997).
(PDF)
- B. M. Gammel and W. Brenig:
Low-frequency anomalies and scaling of the dynamic conductivity in the quantum Hall effect,
Phys. Rev. B 53, Rapid Comm., pp. 13279-13282 (1996).
(PDF)
- B. M. Gammel and W. Brenig:
Scaling of the Static Conductivity in the Quantum Hall Effect,
Phys. Rev. Lett. 73, pp. 3286-3289 (1994).
(PDF)
- B. M. Gammel:
Kritisches Verhalten und Niederfrequenz-Anomalien beim Quanten-Hall-Effekt,
Dissertation, Technische Universität München, 1994 (German).
(PDF)
- B. M. Gammel and S. F. Fischer:
Localisation Phase Diagram for a Disordered Two-Dimensional System in a Magnetic Field,
Phys. Rev. Lett. 66, pp. 2919-2922 (1991).
(PDF)
Links
Susi's site
Michi's site
Gerd's site
Stefan's site
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