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中南大学学报(英文版)

Journal of Central South University

Vol. 22    No. 7    July 2015

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A chaos-based quantum group signature scheme in quantum cryptosystem
LOU Xiao-ping(娄小平)1, 2, CHEN Zhi-gang(陈志刚)2, Moon Ho Lee3

1. School of Computer Science and Technology, Hunan University of Arts and Science, Changde 415000, China;
2. School of Information Science and Engineering, Central South University, Changsha 410083, China;
3. Institute of Information and Communication, Chonbuk National University, Chonju 561756, Korea

Abstract:A quantum group signature (QGS) scheme is proposed on the basis of an improved quantum chaotic encryption algorithm using the quantum one-time pad with a chaotic operation string. It involves a small-scale quantum computation network in three phases, i.e. initializing phase, signing phase and verifying phase. In the scheme, a member of the group signs the message on behalf of the group while the receiver verifies the signature’s validity with the aid of the trusty group manager who plays a crucial role when a possible dispute arises. Analysis result shows that the signature can neither be forged nor disavowed by any malicious attackers.

 

Key words: group signature; chaotic encryption; quantum entanglement; quantum cryptography

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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