【作者】 时旻； 陈俊达； 周昌令；

【Author】 SHI Min;CHEN Jun-da;ZHOU Chang-ling;School of Computer Science,Peking University;Department of Computer Center,Peking University;

【机构】 北京大学计算机学院； 北京大学计算中心；

【摘要】 教育信息验证系统提供生成、颁发、验证和撤销教育证书功能。传统的中心化数据存储的教育信息验证系统,存在单点故障、权威机构分散、有被篡改的风险等问题。文中研究了区块链技术及其在教育领域的发展情况,设计并实现了一个基于公有链的分布式教育信息验证系统。系统使用门限签名实现了多方认证,使用分布式文件存储系统规避了单点存储的风险,使用分布式身份系统对用户与发布者进行认证,使用加密传输保证用户的隐私安全性。经过功能测试和性能测试,证明该系统较完整地实现了教育信息存证和验证的相关的功能,保证了教育信息存证的安全不可篡改、真实不可伪造。更多还原

【Abstract】 Education certificate systems generate,issue,validate,and revoke education certificates.Traditional centralized education certificate systems suffer from problems of single point of failure,fragmentation of authority,risk of tampering,etc.We investigate blockchain and its application in education,and implement a distributes education certificate information system based on public blockchain.The system uses threshold signature for multipart authentication,distributes file storage system to address the single point of failure problem of certificate file storage,and distributed identity system to authenticate and verify users and issuers.To guarantee the user s privacy,files are encrypted during transmission and storage.Functional and performance tests show the system fulfills the requirements of an education certificate system,and the system is tamperproof,reliable and forge-resistant.更多还原