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Robust Key Extraction from Physical Uncloneable Functions

  • B. Škorić
  • P. Tuyls
  • W. Ophey
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3531)

Abstract

Physical Uncloneable Functions (PUFs) can be used as a cost-effective means to store key material in an uncloneable way. Due to the fact that the key material is obtained by performing measurements on a physical system, noise is inevitably present in each readout. In this paper we present a number of methods that improve the robustness of bit-string extraction from noisy PUF measurements in general, and in particular for optical PUFs. We describe a practical implementation in the case of optical PUFs and show experimental results.

Keywords

Physical Uncloneable Function authentication speckle pattern Challenge-Response Pair noise error correction 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • B. Škorić
    • 1
  • P. Tuyls
    • 1
  • W. Ophey
    • 1
  1. 1.Philips Research LaboratoriesEindhovenThe Netherlands

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