Abstract:
:Private Set Intersection Cardinality (PSI-CA) and Private Set Union Cardinality (PSU-CA) are two cryptographic primitives whereby two or more parties are able to obtain the cardinalities of the intersection and the union of their respective private sets, and the privacy of their sets is preserved. In this paper, we propose a three-party protocol to finish these tasks by using quantum resources, where every two, as well as three, parties can obtain the cardinalities of the intersection and the union of their private sets with the help of a semi-honest third party (TP). In our protocol, GHZ states play a role in encoding private information that will be used by TP to compute the cardinalities. We show that the presented protocol is secure against well-known quantum attacks. In addition, we analyze the influence of six typical kinds of Markovian noise on our protocol.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Zhang C,Long Y,Sun Z,Li Q,Huang Qdoi
10.1038/s41598-020-77579-wsubject
Has Abstractpub_date
2020-12-17 00:00:00pages
22246issue
1issn
2045-2322pii
10.1038/s41598-020-77579-wjournal_volume
10pub_type
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