Statistics attack on ‘quantum private comparison with a malicious third party’ and its improvement

Recently, Sun et al. (Quantum Inf Process:14:2125-2133, 2015) proposed a quantum private comparison protocol allowing two participants to compare the equality of their secrets via a malicious third party (TP). They designed an interesting trap comparison method to prevent the TP from knowing the fin...

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Veröffentlicht in:Quantum information processing 2018-02, Vol.17 (2), p.1-5, Article 23
Hauptverfasser: Gu, Jun, Ho, Chih-Yung, Hwang, Tzonelih
Format: Artikel
Sprache:eng
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Zusammenfassung:Recently, Sun et al. (Quantum Inf Process:14:2125-2133, 2015) proposed a quantum private comparison protocol allowing two participants to compare the equality of their secrets via a malicious third party (TP). They designed an interesting trap comparison method to prevent the TP from knowing the final comparison result. However, this study shows that the malicious TP can use the statistics attack to reveal the comparison result. A simple modification is hence proposed to solve this problem.
ISSN:1570-0755
1573-1332
DOI:10.1007/s11128-017-1788-3