Published January 1, 2016 | Version v1
Journal article Metadata-only

Cryptanalysis and Improvement of the Multi-User QPCE Protocol with Semi-Honest Third Party

Creators

  • 1. Department of Computer Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731 (China)
  • 2. College of Information Engineering, Chengdu University of Information Technology, Chengdu 610225 (China)

Description

In a recent work [Quantum Inf. Process 12 (2013) 1077], a multi-user protocol of quantum private comparison of equality (QPCE) is presented. Here we point out that if we relax the constraint of a semi-honest third party, the private information of the users will be totally leaked out to the third party. A special attack is demonstrated in detail. Furthermore, a possible improvement is proposed, which makes the protocol secure against this kind of attack. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/33/1/010301

Additional details

Identifiers

DOI
10.1088/0256-307X/33/1/010301;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
33
Journal Issue
1
Journal Page Range
[5 p.]
ISSN
0256-307X
CODEN
CPLEEU

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48022480
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
COMPARATIVE EVALUATIONS; CRYPTOGRAPHY; INFORMATION; LIMITING VALUES
Descriptors DEC
EVALUATION