基于区块链技术的数据存证管理系统  

Data Deposit Management System Based on Blockchain Technology

作　　者：周艺华 吕竹青[1,2] 杨宇光 侍伟敏 ZHOU Yihua;LV Zhuqing;YANG Yuguang;SHI Weimin(Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China;Research Center of Blockchain, Beijing University of Technology, Beijing 100124, China;Beijing Key Laboratory of Trusted Computings Beijing 100124, China)

机构地区：[1]北京工业大学信息学部,北京100124 [2]北京工业大学区块链研究中心,北京100124 [3]可信计算北京市重点实验室,北京100124

出　　处：《信息网络安全》2019年第8期8-14,共7页Netinfo Security

基　　金：国家自然科学基金[61572053];北京市自然科学基金[4182006]

摘　　要：数字资产是现代高科技的产物,需要对其存储且防篡改,同时还要方便对其进行共享、验证等操作。传统的数据存证系统大多和第三方平台合作,依赖于中心化管理,缺乏安全性和可靠性。文章利用区块链技术,设计了一套完整的基于区块链技术的数据存证管理系统,以保障数据的安全加密和用户验证。系统采用联盟链架构,对于不同的数据类型进行分类整理存储;系统采用基于身份的无可信中心门限环签名方案,该方案满足不可伪造性和无条件匿名性等安全性要求。系统提供注册、上传、下载和查询等功能,同时为用户和底层数据提供了友好的交互界面,有效保证了存证系统中数据的真实性、有效性和安全性。Digital assets are the products of modern high technology, which need to be stored and tampered-proof,and to be easily shared and verified. Traditional data depositing systems mostly cooperate with third-party platforms, depend on centralized management and lack security and reliability. Using blockchain technology, this paper designs a complete data depositing management system based on blockchain technology to ensure data security encryption and user verification. The system uses alliance chain architecture to classify and store different data types. The system adopts ID-based threshold ring signature scheme without trusted center, which meets the security requirements of unforgeability and unconditional anonymity. The system provides the functions of registration, upload, download and query, and provides a friendly interactive interface for users and underlying data, which effectively guarantees the authenticity, validity and security of data in data depositing system.

关 键 词：区块链 数据存证 门限环签名 信息安全 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]