QKD-based quantum private query without a failure probability

Abstract

In this paper, we present a quantum-key-distribution (QKD)-based quantum private query (QPQ) protocol utilizing single-photon signal of multiple optical pulses. It maintains the advantages of the QKD-based QPQ, i.e., easy to implement and loss tolerant. In addition, different from the situations in the previous QKD-based QPQ protocols, in our protocol, the number of the items an honest user will obtain is always one and the failure probability is always zero. This characteristic not only improves the stability (in the sense that, ignoring the noise and the attack, the protocol would always succeed), but also benefits the privacy of the database (since the database will no more reveal additional secrets to the honest users). Furthermore, for the user's privacy, the proposed protocol is cheat sensitive, and for security of the database, we obtain an upper bound for the leaked information of the database in theory.

7 pages, 1 figure

References in corpus (2)

• Quantum private queries
• Post-processing of the oblivious key in quantum private queries

Cited by in corpus (6)

• Self-tallying Quantum Anonymous Voting
• Secure multi-party quantum summation based on quantum Fourier transform
• Device Independent Quantum Private Query
• Multi-user quantum private comparison with scattered preparation and one-way convergent transmission of quantum states
• Improved and Formal Proposal for Device Independent Quantum Private Query
• Quantum oblivious transfer: a short review