摘 要:医院数据库中存放着大量的患者信息,为提高医疗数据的安全性,基于区块链设计医院数据库安全访问控制方法。引入许可操作数据集,使用多项式进行求解,生成访问控制权限表达式,基于区块链设置数据库访问控制权限。建立访问控制模型,划定不同节点之间的关系,得到数据库安全访问控制方法。实验结果表明,在该访问控制方法下,当数据量小于1×105 时,数据的增加不会对访问耗时造成影响,但是当数据量增长到1×105 量级时,该访问控制方法的耗时会随着数据量的增加而同步增长。
关键词:区块链;医院数据库;数据库安全;访问控制
DOI:10.19850/j.cnki.2096-4706.2023.08.012
中图分类号:TP391 文献标识码:A 文章编号:2096-4706(2023)08-0048-03
Security Access Control Method of Hospital Database Based on Blockchain
LIU Bingfeng, HAN Zhiwei
(The 80th Army Group Hospital of the People's Liberation Army Ground Force, Weifang 261021, China)
Abstract: A large amount of patient information is stored in the hospital database. In order to improve the security of medical data, the hospital database security access control method is designed based on the blockchain. The permission operation data set is introduced, the polynomial is used to solve, the access control permission expression is generated, and the database access control permission is set based on the blockchain. It establishes the access control model, delimits the relationship between different nodes, and obtains the database security access control method. The experimental results show that under this access control method, when the data volume is less than 1×105, the increase of data will not affect the access time consumption, but when the data volume grows to the order of 1×105, the time consumption of this access control method will increase synchronously with the increase of data volume.
Keywords: blockchain; hospital database; database security; access control
参考文献:
[1] 谭靓洁,李永飞,吴琼. 基于区块链的煤矿安监云数据安全访问模型研究 [J]. 工矿自动化,2022,48(5):93-99.
[2] 谢芳. 基于数据库安全和云平台的农机零件库安全体系研究 [J]. 农机化研究,2022,44(9):152-155.
[3] 付永贵,朱建明. 基于区块链的数据库访问控制机制设计[J]. 通信学报,2020,41(5):130-140.
[4] 刘雪贞,孙从翔. 基于区块链技术的安全访问控制机制 [J].信息与电脑,2020,32(7):191-193.
[5] 吴晓晖,黄昌军,吴梦蝶,等. 区块链技术在访问控制的研究进展 [J]. 科技风,2020(35):102-103.
作者简介:刘秉峰(1986.07—),男,汉族,山东潍坊人,工程师,硕士,研究方向:计算机应用;韩智伟(1985.10—),男,汉族,山东潍坊人,工程师,硕士,研究方向:软件工程。