区块链环境下多源大数据访问加密防护仿真  

Simulation of Encryption Protection for Multi-Source Big Data Access in Blockchain Environment

作　　者：唐文春 栗强强 闫会峰 TANG Wen-chun;LI Qiang-qiang;YAN Hui-feng(School of Big Data,Chongqing College of Mobile Communication,Chongqing 401520,China;Chongqing Key Laboratory of Public Big Data Security Technology,Chongqing 401420,China;School of Software Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆移通学院大数据学院,重庆401520 [2]公共大数据安全技术重庆市重点实验室,重庆401420 [3]重庆邮电大学软件工程学院,重庆400065

出　　处：《计算机仿真》2024年第5期424-428,共5页Computer Simulation

基　　金：2023年度高等教育教学改革研究项目(重庆移通学院项目编号23JG331)。

摘　　要：为了提高多源大数据在网络中传输和存储的安全性,提出区块链技术下多源大数据加密防护算法。对多源大数据展开降维处理,减少数据计算量,提高算法的整体效率;结合Henon映射与Logistic映射设计一种双混沌加密算法,实现多源大数据初步加密;利用区块链技术设计多源大数据加密防护方案,在智能合约的基础上,大数据所有者可以将双混沌加密算法加密后的密钥上传至区块链中,同时对数据的有效访问时间展开设定,在有效访问时间内只有满足访问策略的用户才可以访问多源大数据,以此实现多源大数据的加密防护。实验结果表明,所提算法加密后的数据不容易被攻击,且具有较高的运行效率和良好的加密效果。In order to improve the security of multi-source big data transmission and storage in networks,this article resented an encryption protection algorithm for multi-source big data based on blockchain technology.Firstly,we performed the dimensionality reduction on multi-source big data to reduce the amount of data calculation,thus improving the overall efficiency of the algorithm.Then,we designed a dual chaotic encryption algorithm by using Henon mapping and Logistic mapping,thus achieving the preliminary encryption of multi-source big data.Moreover,we designed a multi-source big data encryption protection scheme by using blockchain technology.On the basis of smart contracts,big data owners can upload the key encrypted by the dual chaos encryption algorithm to the blockchain,and set the effective access time of the data.Within the effective access time,only users who meet the access policy can access multi-source big data,thus achieving encryption protection for multi-source big data..Finally,we realized the encryption protection for multi-source big data.The experimental results show that the data encrypted by the proposed algorithm was not easy to be attacked.Meanwhile,the algorithm has high operating efficiency and good encryption effect.

关 键 词：数据降维 区块链技术 多源大数据 双混沌加密算法 数据加密防护 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]