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A Multilevel Security Model for private cloud

Chinese Journal of Electronics 2014年第2期23卷 232-235页

作者： XUE Haiwei ZHANG Yunliang GUO Zhien DAI Yiqi Department of Computer Science Tsinghua University

Towards data leak caused by misoperation and malicious inside users, we proposed a multilevel security model based on Bell-lapadula(BLP) model. In our model each subject was assigned with a security level. Subjects can read objects only when their security levels are not less than objects' security levels, and subjects can write objects only when their security levels are not more than objects' security levels. The current security level in our model can be dynamically changed when users read sensitive data, since users can access data with different security levels in private cloud. Our model use mandatory access control method to control user's operation and can guarantee that users can not leak sensitive data after they read them. Our model can be proved secure by mathematical method, and we implemented a prototype system of our model and the experimental results show that it is secure.

关键词： cloud computing private cloud Security model BLP model Access control

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A private cloud Document Management System with Document Clustering Algorithm

A Private Cloud Document Management System with Document Clu...

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2012 National Conference on Information Technology and Computer Science

作者： Jiajia Miao 1,2 1) Institute of Command Automation,PLA University of Science and Technology,Nanjing,China 2) Key Laboratory of C4ISR Technology,National University of Defense Technology,Changsha,China Zhongjun Fan 613#,School of Computer,National University of Defense Technology,Changsha,China Guoyou Chen Institute of Command Automation,PLA University of Science and Technology,Nanjing,China Handong Mao Key Laboratory of C4ISR Technology,National University of Defense Technology,Changsha,China Le Wang Key Laboratory of C4ISR Technology,National University of Defense Technology,Changsha,China

Recently,more and more enterprises use virtualization technology and cloud computing technology to improve the level of information *** cloud document management system from the lab to practical *** launched a private cloud file management system is characterized by the automatic cluster of files,so as to achieve the automated management of the text *** clustering has been extensively studied,because it is an effective solution,the organization of a large number of *** order to overcome the main challenges that the current document clustering a huge number of documents,high dimensional process and comprehensible cluster,we propose a hybrid algorithm based on the top-k frequent itemsets and *** experimental results show the efficiency and effectiveness of the algorithm is superior to the other two representative clustering algorithm on two public data *** algorithm can be further improved in the future parallel implementation,based on semantic representation and similarity measurement.

关键词： private cloud document management document clustering frequent term sets

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基于BIM-private cloud的地铁工程一体化协同设计研究

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科技创新与应用 2022年第15期12卷 104-107页

作者：刘世涛王伟马少雄刘乾嵘张昊泽王晓鹏中铁一局集团建筑安装工程有限公司陕西西安710054 陕西铁路工程职业技术学院陕西渭南710015

随着BIM、GIS、loT、云计算等技术的快速发展与融合应用,为国内工程建设管理带来颠覆性变革,为城市地铁工程施工一体化协同设计提供有效的技术支撑。为详细分析BIM+云计算技术在地铁工程中的一体化协同设计,研究以BIM技术和私有云理论... 详细信息

随着BIM、GIS、loT、云计算等技术的快速发展与融合应用,为国内工程建设管理带来颠覆性变革,为城市地铁工程施工一体化协同设计提供有效的技术支撑。为详细分析BIM+云计算技术在地铁工程中的一体化协同设计,研究以BIM技术和私有云理论为基础,以地铁工程一体化协同设计BIM信息为研究对象,构建基于BIM-private cloud平台的一体化协同模式和框架。研究结果表明,BIM技术和私有云平台的协同应用,实现地铁工程全生命周期信息数据的有效集成与共享,提高各设计专业之间的协同效率,为地铁工程施工提质增效提供有效的技术支撑。

关键词： BIM技术 private cloud 地铁一体化协同设计

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cloud Computing: Purpose and Future

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Journal of Software Engineering and Applications 2024年第10期17卷 763-769页

作者： Robb Shawe Department of Cyber Leadership Capitol Technology University Laurel MD USA

cloud computing is the new norm within business entities as businesses try to keep up with technological advancements and user needs. The concept is defined as a computing environment allowing for remote outsourcing of storage and computing resources. A hybrid cloud environment is an excellent example of cloud computing. Specifically, the hybrid system provides organizations with increased scalability and control over their data and support for a remote workforce. However, hybrid cloud systems are expensive as organizations operate different infrastructures while introducing complexity to the organization’s activities. Data security is critical among the most vital concerns that have resulted from the use of cloud computing, thus, affecting the rate of user adoption and acceptance. This article, borrowing from the hybrid cloud computing system, recommends combining traditional and modern data security systems. Traditional data security systems have proven effective in their respective roles, with the main challenge arising from their recognition of context and connectivity. Therefore, integrating traditional and modern designs is recommended to enhance effectiveness, context, connectivity, and efficiency.

关键词： cloud Computing Hybrid cloud private cloud Public cloud IaaS PaaS SaaS On-Premises Platform Data Security Systems

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