Reverse Auction Method for Online Secure Multiple Positive Correlation Attributes Based on Matching Degree

Abstract

The invention discloses an online security multiple positive correlation attribute reverse auction method based on matching degree, comprising: the purchaser server generates an ideal information matrix according to an ideal scheme, and the ideal scheme includes a set of positive correlation attributes A={a 1 , a 2 ,...,a N}, encrypt the ideal information matrix to obtain the encrypted matrix, and send the encrypted matrix to the supplier client; each supplier client calculates according to its corresponding candidate information matrix and encrypted matrix, and sends the obtained matching matrix to the buyer server; Each supplier client corresponds to a matching matrix, and each alternative information matrix is ​​generated by the corresponding supplier client according to their respective alternatives. Each alternative corresponds to a supplier client, and the alternatives and ideal solutions have The same attribute; the buyer's server calculates the matching degree between the alternative scheme corresponding to each matching matrix and the ideal scheme, sorts at least one matching degree obtained, and selects the alternative scheme corresponding to the highest matching degree as the auction scheme output.

Description

technical field [0001] The invention relates to a matching degree-based online security multi-positive correlation attribute reverse auction method, which belongs to the technical field of electronic auctions. Background technique [0002] In recent years, with the rapid development of the Internet and mobile terminals, the online auction system as a new type of electronic decision-making model has been widely used in the fields of electronic auctions, among which online reverse auction is the mainstream direction of online auction research. [0003] Reverse auction is also known as reverse auction, bidding or tendering system. A buyer can use the network or a specific platform to purchase items, and the suppliers participating in the auction need to conduct off-site, remote, and real-time bidding within the specified time. [0004] With the content of auctions becoming more and more abundant, auctions with price as the only attribute are far from meeting the needs of buyer...

AI Technical Summary

Problems solved by technology

[0006] However, since the scoring function designed by Srinath requires the participation of relevant information in the alternatives provided by the supplier, the possibility of information exposure in the alternatives is increased, resulting in a decrease in the privacy of the auction scheme

In addition, since the auction protocol proposed by Srinath requires multiple interactions between the participants, the number of communication rounds in the auction protocol is large, and the operation efficiency of the auction protocol is not high.

Moreover, due to the addition of a third party, the probability of an attacker intercepting the information transmitted in the communication increases, which reduces the security of the auction protocol

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