Cryptology ePrint Archive: Report 2010/386

BoostReduce - A Framework For Strong Lattice Basis Reduction

Werner Backes and Susanne Wetzel

Abstract: In this paper, we propose a new generic reduction framework BoostReduce for strong lattice basis reduction. At the core of our new framework is an iterative method which uses a newly-developed algorithm for finding short lattice vectors and integrating them efficiently into an improved lattice basis. We present BoostBKZ as an instance of BoostReduce using the Block-Korkine-Zolotarev (BKZ) reduction. BoostBKZ is tailored to make effective use of modern computer architectures in that it takes advantage of multiple threads. Experimental results of BoostBKZ show a significant reduction in running time while maintaining the quality of the reduced lattice basis in comparison to the traditional BKZ reduction algorithm.

Category / Keywords: applications / lattice techniques, parallel algorithm, lattice basis reduction, framework, multi-core, cryptanalysis

Date: received 7 Jul 2010

Contact author: wbackes at stevens edu

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Version: 20100707:191428 (All versions of this report)

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