International Journal of Theoretical Physics

, Volume 51, Issue 8, pp 2514–2523

A Modified Quantum Key Distribution Without Public Announcement Bases Against Photon-Number-Splitting Attack

Article

DOI: 10.1007/s10773-012-1131-9

Cite this article as:
Lin, S. & Liu, XF. Int J Theor Phys (2012) 51: 2514. doi:10.1007/s10773-012-1131-9

Abstract

The security of quantum cryptography without public announcement bases in photon-number-splitting attack is discussed. Based on unambiguous state discrimination, we propose two attack strategies and shown that partial information about the raw key may be eavesdropped by these attacks. Though this flaw can be overcame by performing classical privacy amplification, it will decrease the efficiency of the protocol greatly. Hence, drawing ideas from cipher block chaining, we put forward a possible modified protocol, which is secure against the presented attacks at zero error.

Keywords

Quantum key distribution Photon-number-splitting attack Unambiguous state discrimination Cipher block chaining 

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.School of Mathematics and Computer ScienceFujian Normal UniversityFuzhouChina
  2. 2.Key Lab of Network Security and CryptographyFujian Normal UniversityFuzhouChina

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