Matching degree based online security multi-positive correlation attribute reverse auction method

Abstract

The invention discloses a matching degree based online security multi-positive correlation attribute reverse auction method, which comprises the steps that a purchaser server generates an ideal information matrix according to an ideal scheme, wherein the ideal scheme comprises a positive correlation attribute set A={a1, a2, and so on, aN}, encrypts the ideal information matrix to acquire an encrypted matrix, and sends the encrypted matrix to supplier clients; each supplier client calculates according to a corresponding alternative information matrix and the encrypted matrix, and sends an acquired matching matrix to the purchaser server, wherein each supplier client corresponds to a matching matrix, each alternative information matrix is generated by the corresponding supplier client according to a corresponding alternative scheme, each alternative scheme corresponds to a supplier client, and the alternative schemes and the ideal scheme have the same attributes; and the purchaser server calculates the matching degree of the alternative scheme corresponding to each matching matrix and the ideal scheme, sorts the acquired at least one matching degree, and selects the alternative scheme corresponding to the highest matching degree to act as an auction scheme to output.

Description

technical field [0001] The invention relates to an online security multi-positive correlation attribute reverse auction method based on matching degree, and belongs to the technical field of electronic auction. Background technique [0002] In recent years, with the rapid development of the Internet and mobile terminals, online auction system has been widely used in electronic auction and other fields as a new type of electronic decision-making model, among which online reverse auction is the mainstream direction in 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 each supplier participating in the auction needs to conduct remote, remote and real-time bidding within a specified time. [0004] As auction content becomes more and more abundant, auctions with price as the only attribute can no longer meet the needs of buyers. Buyers and supp...

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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