摘要
针对数据共享时的隐私安全问题,提出一种基于区块链的可信数据共享方案。将星际文件系统和区块链技术结合,在可靠存储数据的同时降低区块链的存储负担。基于高级加密标准和密文策略属性基加密技术,提出双阶段数据访问控制机制,通过设置访问策略限定数据共享范围。利用智能合约对数据进行全生命周期管理,提高数据共享效率。对方案进行性能测试和安全性分析,实验结果表明,所提方案具有可行性,能够有效保护数据隐私安全。
Aiming at the privacy and security issues of data sharing,a trusted data sharing scheme based on blockchain was proposed.The inter planetary file system and blockchain technology were combined to reliably store data and reduce the storage burden of blockchain.Based on advanced encryption standard and ciphertext policy attribute based encryption technology,a two-stage data access control mechanism was proposed to limit the scope of data sharing by setting access policy.The smart contract was used to manage the whole life cycle of data and improve data sharing efficiency.The performance test and security analysis of the scheme were carried out.The results of experiments show that the proposed scheme is feasible and can effectively protect data privacy and security.
作者
刘静静
邓浩江
李杨
LIU Jing-jing;DENG Hao-jiang;LI Yang(National Network New Media Engineering Research Center,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《计算机工程与设计》
北大核心
2023年第6期1601-1607,共7页
Computer Engineering and Design
基金
中国科学院战略性先导科技专项基金项目(XDC02070100)。
关键词
区块链
智能合约
数据共享
访问控制
数据管理
隐私保护
星际文件系统
blockchain
smart contract
data sharing
access control
data management
privacy protection
inter planetary file system
