Efficient One-Way Secret-Key Agreement and Private Channel Coding via Polarization

  • Joseph M. Renes
  • Renato Renner
  • David Sutter
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8269)

Abstract

We introduce explicit schemes based on the polarization phenomenon for the task of secret-key agreement from common information and one-way public communication as well as for the task of private channel coding. Our protocols are distinct from previously known schemes in that they combine two practically relevant properties: they achieve the ultimate rate—defined with respect to a strong secrecy condition—and their complexity is essentially linear in the blocklength. However, we are not able to give an efficient algorithm for code construction.

Keywords

One-way secret-key agreement private channel coding one-way secret-key rate secrecy capacity wiretap channel scenario more capable less noisy degraded polarization phenomenon polar codes practically efficient strongly secure 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Joseph M. Renes
    • 1
  • Renato Renner
    • 1
  • David Sutter
    • 1
  1. 1.Institute for Theoretical PhyiscsETH ZurichSwitzerland

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