Slepian-Wolf Coding for Reconciliation of Physical Layer Secret Keys

Author

Sun, Xiaojun ; Wu, Xiaofu ; Zhao, Chunming ; Jiang, Ming ; Xu, Wei

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

fYear

2010

fDate

18-21 April 2010

Firstpage

1

Lastpage

6

Abstract

In this paper, we show how to compute the Slepian-Wolf lower bound for the reconciliation of physical layer secret keys between two radio terminals. Two coding approaches, including the syndrome method and the parity method, have been proven to require the same number of bits exchanged between two terminals for the reconciliation in the noiseless environment. We also present a practical coding approach based on LDPC codes, and the gap between the practical approach and the Slepian-Wolf bound is given.

Keywords

parity check codes; radiocommunication; telecommunication security; LDPC codes; Slepian-Wolf coding; Slepian-Wolf lower bound; parity method; physical layer secret key reconciliation; radio terminals; syndrome method; Communication system security; Communications Society; Information security; Mobile communication; National security; Parity check codes; Physical layer; Quantization; Wireless communication; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2010 IEEE

Conference_Location

Sydney, NSW

ISSN

1525-3511

Print_ISBN

978-1-4244-6396-1

Type

conf

DOI

10.1109/WCNC.2010.5506131

Filename

5506131