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Practical Lattice Basis Sampling Reduction

  • Johannes Buchmann
  • Christoph Ludwig
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4076)

Abstract

We propose Simple Sampling Reduction (SSR) that makes Schnorr’s Random Sampling Reduction (RSR) practical. We also introduce generalizations of SSR that yield bases with several short basis vectors and that, in combination, generate shorter basis vectors than SSR alone. Furthermore, we give a formula for Pr[||v||2x] provided v is randomly sampled from SSR’s search space. We describe two algorithms that estimate the probability that a further SSR iteration will find an even shorter vector, one algorithm based on our formula for Pr[||v||2x], the other based on the approach of Schnorr’s RSR analysis. Finally, we report on some cryptographic applications.

Keywords

Search Space Base Vector Lattice Reduction Lattice Basis Short Vector 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Johannes Buchmann
    • 1
  • Christoph Ludwig
    • 1
  1. 1.Fachbereich InformatikTechnische Universität DarmstadtDarmstadtGermany

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