Quantum Sealed-Bid Auction Protocol Based on Semi-honest Model

Abstract

In view of the possible disclosure of personal information in the quantum auction protocol, by using the correlation between entangled particles and quantum teleportation, we propose a secure quantum sealed-bid auction (QSBA) protocol based on semi-honest model. In this protocol, by introducing a trusted third party Trent, we separate the registration operation of users from the business function of auction center. Bidders and the auction center can realize quantum identity authentication without information disclosure, so as to reduce the risk of the auction center disclosing the personal information of bidders. With the help of Trent, using the quantum sequences to be the information carrier of bidding, the auction center and bidders can conduct quantum teleportation to obtain each bidding price. When the auction center publishes the bid price and serial number, the registration center also publishes the corresponding winning bidder. Through security analysis, our protocol can guarantee the anonymity of bidders and the integrity of bidding information.