Publications

Improving DPA by Peak Distribution Analysis

Posted on 03 Sep 10

On August 12-13, 2010, Jing Pan, Jasper van Woudenberg, Jerry den Hartog and Marc Witteman published a paper at the 17th International Workshop on Selected Area in Cryptography (SAC 2010) in Waterloo, Canada.

Elastic alignment research paper

Posted on 06 Sep 09

To prevent smart card attacks using Differential Power Analysis (DPA), manufacturers commonly implement DPA countermeasures that create misalignment in power trace sets and decrease the effectiveness of DPA. We design and investigate the elastic alignment algorithm for non-linearly warping trace sets in order to align them. Elastic alignment uses FastDTW, originally a method for aligning speech utterances in speech recognition systems, to obtain so-called warp paths that can be used to align pairs of traces. FastDTW is used iteratively to align an entire trace set. We show on a smart card with controllable countermeasures that misalignment is reduced significantly.

This research was performed as a joint effort by Riscure and the University of
Amsterdam as part of the Master of Science in Artificial Intelligence graduation work of Jasper van Woudenberg, the main author. Jasper is a Security Analyst at Riscure.

>> the paper (pdf)

Talk at RSA Conference 2009

Posted on 23 Apr 09

April 20-24, Moscone Center, San Francisco, USA

Job de Haas gives a presentation about side channel analysis on embedded technology at the RSA Conference 2009 in San Francisco, USA.

Riscure also exhibits at the RSA exhibition to promote its security test services on smart card and embedded technology, and to demonstrate Inspector, our side channel test platform.

Paper on DPA recombination attack on RSA-CRT

Posted on 03 Apr 09

This paper describes a practical method for attacking the recombination part in an RSA-CRT implementation with differential power analysis (DPA):

Paper on DPA on RSA in CRT mode (pdf)

RSA Conference 2008

Posted on 13 Feb 08

Marc Witteman and Harko Robroch release a paper during the RSA Conference on secure application programming in the presence of side channel attacks (Session RR-203). This session is part of the Research Revealed track.