A Trusted Sealed-Bid Auction Scheme Based on Blockchain
Traditional sealed-bid auction mostly adopt a centralized management model.However,the centralized auction method often causes problems such as opaque auction process and leakage of user privacy,which seriously affects the credibility of the auction.This article proposes a trusted sealed-bid auction scheme based on blockchain to address these issues.Firstly,the scheme defines the auction information publishing operation,bidding operation,bid opening operation and auction result publishing operation involved in the sealed-bid auction pro-cess as transaction.Then,the scheme uses group signature technology to satisfy the anonymity of bidding behavior.Finally,the scheme pro-poses the transaction model and designs the transaction authenticity verification process.The scheme uses blockchain technology to realize trusted management of four types of operations,which improves the transparency and credibility of the auction process.Based on the FISCO BCOS blockchain platform,the proposed scheme is simulated and realized,and the test results verify the effectiveness of the scheme.