基于联盟链和Asmuth-Bloom秘密共享算法的数据共享方案  

Data Sharing Scheme Based on Consortium Blockchain and Asmuth-Bloom Secret Sharing Algorithm

作　　者：张学旺[1,2] 姚亚宁 黎志鸿 张豪 ZHANG Xuewang;YAO Yaning;LI Zhihong;ZHANG Hao(School of Software Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;College of Microelectronic and Communication Engineering,Chongqing University,Chongqing 400004,China)

机构地区：[1]重庆邮电大学软件工程学院,重庆400065 [2]重庆大学微电子与通信工程学院,重庆400004

出　　处：《信息网络安全》2022年第11期17-23,共7页Netinfo Security

基　　金：重庆市自然科学基金重点项目(cstc2019jcyj-zdxm0008);南充市科技计划项目(21YFZJ0033);渝北区大数据智能化科技专项重点项目(2020-02)。

摘　　要：针对现有数据共享方案效率低及联盟链存储压力大的问题,文章提出一种基于联盟链和Asmuth-Bloom秘密共享算法的数据共享方案。该方案通过细粒度访问控制解决敏感数据泄露问题,并提高共享过程中的秘密重构效率;同时通过星际文件系统实现共享数据的安全存储,有效降低联盟链各节点的存储压力。安全性分析及实验结果表明,该方案具有正确性、安全性和高效性。Aiming at the problems of low efficiency of data sharing scheme and high storage pressure on the consortium blockchain,an attribute-encrypted data-sharing scheme based on Asmuth-Bloom secret sharing algorithm is proposed.The scheme solves the leakage problem of sensitive data through fine-grained access control and improves the efficiency of secret reconstruction in the sharing process.At the same time,it realizes the secure storage of through interstellar file system and effectively reduces the storage pressure on the consortium blockchain network.Meanwhile,it realizes the secure storage of data through the inter planetary file system and effectively reduces the storage pressure of each node on the consortium blockchain network.The analysis and experimental results show that the scheme is correct,safe and efficient.

关 键 词：联盟链 Asmuth-Bloom 属性基加密 数据共享 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]