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A Cache Timing Analysis of HC-256

  • Erik Zenner
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5381)

Abstract

In this paper, we describe a cache-timing attack against the stream cipher HC-256, which is the strong version of eStream winner HC-128. The attack is based on an abstract model of cache timing attacks that can also be used for designing stream ciphers. From the observations made in our analysis, we derive a number of design principles for hardening ciphers against cache timing attacks.

Keywords

Cryptanalysis side-channel attack cache timing attack  stream cipher HC-256 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Erik Zenner
    • 1
  1. 1.Department of MathematicsTechnical University of DenmarkDenmark

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