Prof. Dr. Gregor Leander

  • Ehemalige/r Mitarbeiter/in - Lehrstuhl Embedded Security
Leander, Gregor

Adresse

Fa­kul­tät für Elek­tro­tech­nik und In­for­ma­ti­ons­tech­nik
Uni­ver­si­täts­str. 150
44780 Bochum

Raum
NA 5/30
Telefon:
(+49)(0)234 / 32 - 28402
E-Mail:
Gregor.Leander@rub.de

Lebenslauf

  • 2013 - present: Researcher at the Ruhr University Bochum, Germany.
  • 2008 - 2012: Associate Professor at DTU, Copenhagen (on a permanent position).
  • 2006 - 2007: Postdoc at the University Toulon, France.
  • 2004 - 2008: "wissenschaftlicher Assistent", Ruhr University Bochum, Germany.
  • 2004: PhD degree from the Ruhr University Bochum.
  • 2001 - 2004: PhD student at the Ruhr University Bochum
  • 2004: Master (Diplom) from the University Bremen

Awards and Recognition:

  • DHL Innovation Award 2013, together with Christof Paar and Axel Poschmann
  • German IT-Security prize 2010 for the block cipher PRESENT (100K EUR), together with Christof Paar and Axel Poschmann
  • PRESENT is ISO standard (ISO/IEC 29192-2) for Lightweight Cryptography.
  • Award for the best master thesis at the University Bremen, 2001.

Forschung

Publication Summary

Invited Talks

  • SantaCrypt 2014
  • LightSec 2013
  • BalkanCrypt 2013
  • WCC 2013
  • Latincrypt 2012

Program Chair

  • Fast Software Encryption (FSE) 2015

Program co-Chair

  • Symmetric Key Encryption Workshop (SKEW) 2011
  • Lightweight Cryptography Workshop 2011

Member in Program Committees (selection):

  • ASIACRYPT 2014
  • EUROCRYPT 2013
  • CHES 2013, 2014
  • International Workshop on Fast Software Encryption (FSE): 2012, 2013, 2014
  • Selected Areas in Cryptography (SAC): 2008,2012,2013,2014
  • SPACE 2012,2013
  • Workshop on RFID Security and Privacy (RFIDsec): 2012
  • International Workshop on Coding and Cryptography(WCC): 2011
  • Sequences and their applications (SETA): 2010
  • Yet Another Conference on Cryptography (YACC): 2010, 2012, 2014
  • Western European Workshop on Research in Cryptology (WEWORC): 2005,2007,2009,2011,2013

Projekte

General Chair

  • Fast Software Encryption (FSE) 2016

General co-Chair

  • EUROCRYPT 2014
  • Fast Software Encryption (FSE) 2011

Lehrveranstaltungen

Veröffentlichungen

2016
Strong 8-bit Sboxes with Efficient Masking in Hardware

Erik Boss, Vincent Grosso, Tim Güneysu, Gregor Leander, Amir Moradi, Tobias Schneider - Work­shop on Cryp­to­gra­phic Hard­ware and Em­bed­ded Sys­tems, CHES 2016, Santa Barbara, California, USA, August 17 - 19, 2016.

The SKINNY Family of Block Ciphers and its Low-Latency Variant MANTIS

Christof Beierle, Jérémy Jean, Stefan Kölbl, Gregor Leander, Amir Moradi, Thomas Peyrin, Yu Sasaki, Pascal Sasdrich, Siang Meng Sim - In­ter­na­tio­nal Cryp­to­lo­gy Con­fe­rence - CRYP­TO 2016, Santa Bar­ba­ra, Ca­li­for­nia, USA, Au­gust 14 - 18, 2016.

2015
Analyzing Permutations for AES-like Ciphers: Understanding ShiftRows

Christof Beierle, Philipp Jovanovic, Martin M. Lauridsen, Gregor Leander, Christian Rechberger - CT-RSA 2015, San Francisco, CA, USA, April 20-24, 2015.

2014
Block Ciphers – Focus On The Linear Layer (feat. PRIDE)

Martin R. Albrecht, Benedikt Driessen, Elif Bilge Kavun, Gregor Leander, Chris­tof Paar, Tolga Yalcin - In Proceedings of the 34th International Cryptology Conference 2014 (CRYPTO’14), volume 8616 of Lecture Notes in Computer Science, pages 57-76. Springer, Santa Barbara, CA, US, August 17-21, 2014

2013
A Reconfigurable Architecture For Searching Optimal Software Code To Implement Block Cipher Permutation Matrices

Elif Bilge Kavun, Gregor Leander, Tolga Yalcin - In In­ter­na­tio­nal Con­fe­rence on Re­Con­Fi­gura­ble Com­pu­ting and FPGAs 2013 (Re­Con­Fig'13), IEEE Com­pu­ter So­cie­ty, Cancun, Me­xi­co, Dec. 9-11, 2013

Keccak und der SHA-2

Pawel Swierczynski, Gregor Leander, Chris­tof Paar - DuD - Da­ten­schutz und Da­ten­si­cher­heit Aus­ga­be 11/2013

SPONGENT: The Design Space of Lightweight Cryptographic Hashing

Andrey Bogdanov, Miroslav Knezevic, Gregor Leander, Deniz Toz, Kerem Varici, Ingrid Verbauwhede - IEEE Trans. Computers vol. 62, number 10, 2013

Fuming Acid and Cryptanalysis: Handy Tools for Overcoming a Digital Locking and Access Control System

Daehyun Strobel, Benedikt Driessen, Gregor Leander, Timo Kasper, David Oswald, Falk Schellenberg, Chris­tof Paar - Advances in Cryptology - CRYPTO 2013 - 33rd Annual Cryptology Conference, Santa Barbara, CA, USA, August 18-22, 2013

Bounds in Shallows and in Miseries

Céline Blondeau, Andrey Bogdanov, Gregor Leander - Advances in Cryptology – CRYPTO 2013 Lecture Notes in Computer Science Volume 8042, 2013, pp 204-221

A new construction of bent functions based on Z-bent functions

Sugata Gangopadhyay, Anand Joshi, Gregor Leander, Rajendra Kumar Sharma - Designs, Codes and Cryptography January 2013, Volume 66, Issue 1-3, pp 243-256

Slender-Set Differential Cryptanalysis

Julia Borghoff, Lars R. Knudsen, Gregor Leander, Sören S. Thomsen - Journal of Cryptology January 2013, Volume 26, Issue 1, pp 11-38

2012
Integral and Multidimensional Linear Distinguishers with Correlation Zero

Andrey Bogdanov, Gregor Leander, Kaisa Nyberg, Meiqin Wang - Advances in Cryptology – ASIACRYPT 2012 18th International Conference on the Theory and Application of Cryptology and Information Security, Beijing, China, December 2-6, 2012. Proceedings

PRINCE – A Low-Latency Block Cipher for Pervasive Computing Applications (Extended Abstract)

Julia Borghoff, Anne Canteaut, Tim Güneysu, Elif Bilge Kavun, Miroslav Knezevic, Lars R. Knudsen, Gregor Leander, Ventzislav Nikov, Chris­tof Paar, Christian Rechberger, Peter Rombouts, Søren S. Thomsen, Tolga Yalcin - Advances in Cryptology - ASIACRYPT 2012 - 18th International Conference on the Theory and Application of Cryptology and Information Security, Beijing, China, December 2-6, 2012

On the Distribution of Linear Biases: Three Instructive Examples

Mohamed Ahmed Abdelraheem, Martin Ågren, Peter Beelen, Gregor Leander - Advances in Cryptology – CRYPTO 2012 32nd Annual Cryptology Conference, Santa Barbara, CA, USA, August 19-23, 2012. Proceedings

An All-In-One Approach to Differential Cryptanalysis for Small Block Ciphers

Martin R. Albrecht, Gregor Leander - Selected Areas in Cryptography 19th International Conference, SAC 2012, Windsor, ON, Canada, August 15-16, 2012, Revised Selected Papers

Key-Alternating Ciphers in a Provable Setting: Encryption Using a Small Number of Public Permutations

Andrey Bogdanov, Lars R. Knudsen, Gregor Leander, Francois-Xavier Standaert, John Steinberger, Elmar Tischhauser - Advances in Cryptology – EUROCRYPT 2012 31st Annual International Conference on the Theory and Applications of Cryptographic Techniques, Cambridge, UK, April 15-19, 2012. Proceedings

A new construction of highly nonlinear S-boxes

Peter Beelen, Gregor Leander - Cryptography and Communications Volume 4, Issue 1, pp 65-77

2011
Switchings, extensions, and reductions in central digraphs

André Kündgen, Gregor Leander, Carsten Thomassen - Journal of Combinatorial Theory, Series A Volume 118, Issue 7, October 2011, Pages 2025–2034

spongent: A Lightweight Hash Function

Andrey Bogdanov, Miroslav Kneževi?, Gregor Leander, Deniz Toz, Kerem Var?c?, Ingrid Verbauwhede - 13th International Workshop, Nara, Japan, September 28 – October 1, 2011. Proceedings

A Cryptanalysis of PRINTcipher: The Invariant Subspace Attack

Gregor Leander, Mohamed Ahmed Abdelraheem, Hoda AlKhzaimi, Erik Zenner - 31st Annual Cryptology Conference, Santa Barbara, CA, USA, August 14-18, 2011. Proceedings

On Linear Hulls, Statistical Saturation Attacks, PRESENT and a Cryptanalysis of PUFFIN

Gregor Leander - 30th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Tallinn, Estonia, May 15-19, 2011. Proceedings

Bounds on the degree of APN polynomials: the case of x^(-1) + g(x)

Gregor Leander, François Rodier - Designs, Codes and Cryptography April 2011, Volume 59, Issue 1-3, pp 207-222

Counting all bent functions in dimension eight 99270589265934370305785861242880

Philippe Langevin, Gregor Leander - Designs, Codes and Cryptography April 2011, Volume 59, Issue 1-3, pp 193-205

Cryptanalysis of PRESENT-Like Ciphers with Secret S-Boxes

Julia Borghoff, Lars R. Knudsen, Gregor Leander, Sören S. Thomsen - 18th International Workshop, FSE 2011, Lyngby, Denmark, February 13-16, 2011, Revised Selected Papers

Differential Cryptanalysis of Round-Reduced PRINTcipher: Computing Roots of Permutations

Mohamed Ahmed Abdelraheem, Gregor Leander, Mohamed Ahmed Abdelraheem - 18th International Workshop, FSE 2011, Lyngby, Denmark, February 13-16, 2011, Revised Selected Papers

2010
PRINTcipher: A Block Cipher for IC-Printing

Lars R. Knudsen, Gregor Leander, Axel Poschmann, Matthew J. B. Robshaw - 12th International Workshop, Santa Barbara, USA, August 17-20, 2010. Proceedings

A highly nonlinear differentially 4 uniform power mapping that permutes fields of even degree

Carl Bracken, Gregor Leander - Finite Fields and Their Applications Volume 16, Issue 4, July 2010, Pages 231–242

2008
Sufficient Conditions for Intractability in the Generic Model: Providing Lower Bounds for Generalized DL and DH Problems

Ahmad-Reza Sadeghi, Andy Rupp, Endre Bangerter, Alexander W. Dent, Gregor Leander - Accepted for ASIACRYPT 2008.