一种基于区块链的可信密封拍卖方案  

A Trusted Sealed-Bid Auction Scheme Based on Blockchain

作　　者：陈天 沈苏彬[2] CHEN Tian;SHEN Subin(School of Computer Science,Nanjing University of Posts and Telecommunications;National Engineering Research Center on Communication and Networking,Nanjing University of Posts and Telecommunications,Nanjing 210046,China)

机构地区：[1]南京邮电大学计算机学院 [2]南京邮电大学通信与网络技术国家工程研究中心,江苏南京210046

出　　处：《软件导刊》2024年第4期107-118,共12页Software Guide

基　　金：江苏省未来网络前瞻性研究项目(BY2013095-1-08)。

摘　　要：传统密封拍卖多采用集中式的管理模式,然而中心化的拍卖方式往往会造成拍卖过程不透明、用户隐私被泄露等问题,严重影响拍卖的可信度。针对这些问题,提出一种基于区块链的可信密封拍卖方案。该方案首先将密封拍卖过程中涉及到的拍卖信息发布操作、投标操作、开标操作以及中标结果发布操作定义为交易,然后提出使用群签名技术来满足投标行为的匿名性,最后提出交易模型并设计交易的真实性验证流程。该方案使用区块链技术实现4类操作的可信管理,提高了拍卖过程的透明度以及可信度。基于FISCOBCOS区块链平台进行仿真实现,实验结果验证了该方案的有效性。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.

关 键 词：区块链 去中心化 密封拍卖 群签名 智能合约 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]