Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2004, Vol. 27 ›› Issue (3): 98-102.

• PAPERS • Previous Articles     Next Articles

A Protocol of Quantum Key Distribution and Identification

GAO Fei1,2, WEN Qiao-yan1   

  1. 1.Science School, Beijing University of Posts and Telecommunications,Beijing 100876, China;
    2.State Key Laboratory of Integrated Services Network, Xidian University, Xi'
    an710071, China
  • Received:2003-07-09 Online:2004-03-28

Abstract: A new protocol was proposed in which the quantum entangled states was used for quantum key distribution (QKD) and the quantum non-orthogonal states was used for user identification from eavesdropping as well. Both the two states were mixed as alternative form much or less in transmission via a quantum channel. Consequently, there was no need to transmit the classical information in identification process for dual contributions of non-orthogonal states. And the efficiency of QKD was got improved in the mean time. In addition, QKD and identification were completed simultaneously, so that the problem of impersonation was avoided.

Key words: quantum key distribution, quantum cryptography, identification

CLC Number: