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- Title
An efficient semi-quantum private comparison without pre-shared keys.
- Authors
Tian, Yuan; Li, Jian; Chen, Xiu-Bo; Ye, Chong-Qiang; Li, Chao-Yang; Hou, Yan-Yan
- Abstract
Semi-quantum private comparison protocol permits two classical participants to compare the equality of their private information with the help of a semi-honest third party without disclosing privacy. An innovative semi-quantum private comparison protocol based on maximally entangled Greenberger–Horne–Zeilinger-type states has been discussed. The proposed protocol is efficient and without the pre-shared keys. Next, the security analysis guarantees the presented protocol is asymptotically secure against the outsider and the insider attacks. Moreover, the qubit efficiency of the presented protocol is 3.125%. The efficiency comparison shows that it improves the efficiency by 125% for the literature without pre-shared keys.
- Subjects
QUANTUM cryptography
- Publication
Quantum Information Processing, 2021, Vol 20, Issue 11, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-021-03294-8