Dr.-Ing. Kai Schramm

  • Ehemalige/r Mitarbeiter/in - Lehrstuhl Embedded Security
Schramm, Kai

Adresse

ING-DiBa

E-Mail:
schramm@crypto.rub.de

Forschung

  • Side Channel Attacks (SPA, DPA)
  • Security of Smart Cards and Embedded Systems
  • Internal Collisions in Cryptographic Algorithms
  • 8051 Disassembler based on Side Channel Analysis

Publications and Presentations

  • K. Schramm, C. Paar, “Higher Order Masking of the AES“, RSA Conference 2006, Cryptographers’ Track, February 13-17, San Jose, USA. (publication)
  • E. Oswald, K. Schramm, “An Efficient Masking Scheme for AES Software Implementations“, WISA 2005, August 22-24, Jeju Island, Korea. (publication)
  • M. Giaconia, M. Machetti, F. Regazzoni, K. Schramm, “Area and Power Efficient Synthesis of DPA-resistant Cryptographic S-Boxes” (work in progress – authors in alphabetical order)
  • D. Agrawal, J.R. Rao, P. Rohatgi, K. Schramm, “Templates as Master Keys”, Cryptographic Hardware and Embedded Systems (CHES 2005), August 29 - September 1, 2005, Edinburgh, UK. (publication)
  • K. Schramm, P. Felke, G. Leander, C. Paar, “A Collision-Attack on AES Combining Sidechannel- and Differential-Attack“, Cryptographic Hardware and Embedded Systems (CHES 2004), August 11 - 13, 2004, Boston, USA. (publication)
  • K. Lemke, K. Schramm, “DPA on n-bit sized Boolean and Arithmetic Operations and its Applications to IDEA, RC6, and the HMAC Construction”, Cryptographic Hardware and Embedded Systems (CHES 2004), August 11 - 13, 2004, Boston, USA. (publication)
  • K. Schramm, P. Felke, G. Leander, C. Paar, “A Collision-Attack on AES Combining Sidechannel- and Differential-Attack“, AES 4 – State of the Crypto Analysis, May 10 - 12, 2004, Bonn, Germany. (guest talk)
  • K. Schramm, C. Paar, “AES Smart Card Implementation“, IEEE Internation Conference on Information Technology (ITCC) , April 5 – 7, 2004, Las Vegas, USA. (publication)
  • C. Paar, J. Pelzl, K. Schramm, A. Weimerskirch, T. Wollinger, “Eingebettete Sicherheit: State-of-the-art und zukünftige Entwicklungen“ (Embedded Security: State-of-the-art and future developments“), DACH Security, March 30 – 31, 2004, Basel, Swiss. (publication)
  • K. Schramm, T. Wollinger and C. Paar “A New Class of Collision Attacks and its Application to DES”, Fast Software Encryption (FSE 2003), February 24-26, Lund, Sweden. (publication)

Veröffentlichungen

2009
Green Car Security: IT-Sicherheit und Elektromobilität

Chris­tof Paar, Jan Pelzl, Andy Rupp, Kai Schramm, André Weimerskirch - DACH Security 2009, Ruhr-Universität Bochum, Bochum, Germany, Mai, 19-20, 2009.

Securing Green Cars: IT Security in Next-Generation Electric Vehicle Systems

Chris­tof Paar, Andy Rupp, Kai Schramm, André Weimerskirch, Wayne Burleson - Accepted at the 2009 Annual Meeting and Exposition of the Intelligent Transportation Society of America.

2007
New Lightweight Crypto Algorithms for RFID

G. Leander, Chris­tof Paar, Dipl.-Kfm. Axel Poschmann, Kai Schramm - IEEE International Symposium on Circuits and Systems - ISCAS 2007, New Orleans, Louisana, USA, Mai 27-30, 2007.

New Lightweight DES Variants

G. Leander, Chris­tof Paar, Dipl.-Kfm. Axel Poschmann, Kai Schramm - Fast Software Encryption 2007 - FSE 2007, Luxembourg City, Luxembourg, März 26-28, 2007.

2006
Pinpointing the Side-Channel Leakage of Masked AES Hardware Implementations

Stefan Mangard, Kai Schramm - Cryptographic Hardware and Embedded Systems - CHES 2006, 8th International Workshop, Yokohama, Japan, Oktober 10 - 13, 2006.

A Family of Light-Weight Block Ciphers Based on DES Suited for RFID Applications

Dipl.-Kfm. Axel Poschmann, Gregor Leander, Kai Schramm, Chris­tof Paar - Workshop on RFID Security 2006, Graz, Austria, Juli 2006.

Higher Order Masking of the AES. CT-RSA 2006, The Cryptographers' Track

Kai Schramm, Chris­tof Paar - at the RSA Conference 2006, San Jose, CA, USA, February 13-17, 2006, Proceedings. Lecture Notes in Computer Science 3860, Springer 2006.

2005
Templates as Master Keys

Dakshi Agrawal, Josyula R. Rao, Pankaj Rohatgi, Kai Schramm - Cryptographic Hardware and Embedded Systems - - CHES 2005, 7th International Workshop, Edinburgh, UK. August 29 - September 1, 2005.

An Efficient Masking Scheme for AES Software Implementations

Elisabeth Oswald, Kai Schramm - Information Security Applications, 6th International Workshop, WISA 2005, Jeju Island, Korea, August 22-24, 2005, Revised Selected Papers. Lecture Notes in Computer Science 3786.

2004
A Collision-Attack on AES Combining Side Channel- and Differential-Attack

Kai Schramm, Gregor Leander, Patrick Felke, Chris­tof Paar - Cryptographic Hardware and Embedded Systems - CHES 2004, 6th International Workshop, Cambridge, MA, USA, August, 2004.

DPA on n-bit sized Boolean and Arithmetic Operations and its Application to IDEA, RC6 and the HMAC-Construction

Kerstin Lemke, Kai Schramm, Chris­tof Paar - Cryptographic Hardware and Embedded Systems - CHES 2004, 6th International Workshop, Cambridge, MA, USA, August 2004

Eingebettete Sicherheit: State-of-the-art

Chris­tof Paar, Jan Pelzl, Kai Schramm, André Weimerskirch, Thomas Wollinger - D-A-CH Security 2004, University of Basel, March 30-31, 2004.