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Quantum Multi-Party Threshold Private Set Intersection with Explicit Cardinality Testing
Zixian Gong, Kun Tian, Yi Zhang +1
Threshold private set intersection (TPSI) allows parties to reveal their intersection only when its cardinality reaches a prescribed threshold. Existing quantum TPSI protocols typi…
Verifiable and Collusion-Resistant Multi-Party Quantum Private Set Operations
Zixian Gong, Kun Tian, Yi Zhang +1
Threshold private set intersection (TPSI) allows parties to reveal their intersection only when its cardinality reaches a prescribed threshold. Existing quantum TPSI protocols typi…
Efficient Quantum Fully Homomorphic Encryption
Fengxia Liu, Zixian Gong, Kun Tian +3
Quantum fully homomorphic encryption (QFHE) enables arbitrary quantum computations on encrypted data, but prior constructions require prohibitive quantum resources--specifically, O…
Authenticated Sublinear Quantum Private Information Retrieval
Fengxia Liu, Zhiyong Zheng, Kun Tian +5
This paper introduces a novel lower bound on communication complexity using quantum relative entropy and mutual information, refining previous classical entropy-based results. By l…