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Exploration and Practice of Online Teaching Mode for“Three Preparations Before Class,Five Channels in Class and Five Tracking after Class”

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计算机教育 2021年第12期 147-156页

作者： Miao Zhang Hua Zhang Dianhui Chu Xiaojun Tong Kaikun Dong School of Computer Science and Technology Harbin Institute of TechnologyWeihai264209China

Aiming at the characteristics of huge knowledge points,strong practicality and diversity of software security course,adhering to the“Π”scheme for emerging engineering education,based on Tencent classroom,Tencent conference and Lan ink cloud class,and guided by BOPPPS teaching model and deep learning theory,“three preparations before class,five channels in class and five tracking after class”is *** preparations before class and five tracking after class serve the five channels in *** channels in class take live teaching as the core,and teach students knowledge through five *** has proved that this mode can effectively solve the problem of teaching a large number of knowledge in limited class hours,improve students’practical ability and enhance the effect of classroom teaching.

关键词： online teaching BOPPPS teaching model deep learning flipped classroom software security

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Enhancing Mobile Cloud Computing security Using Steganography

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Journal of Information security 2016年第4期7卷 245-259页

作者： Hassan Reza Madhuri Sonawane School of Aerospace Sciences Department of Computer Science University of North Dakota Grand Forks ND USA

Cloud computing is an emerging and popular method of accessing shared and dynamically configurable resources via the computer network on demand. Cloud computing is excessively used by mobile applications to offload data over the network to the cloud. There are some security and privacy concerns using both mobile devices to offload data to the facilities provided by the cloud providers. One of the critical threats facing cloud users is the unauthorized access by the insiders (cloud administrators) or the justification of location where the cloud providers operating. Although, there exist variety of security mechanisms to prevent unauthorized access by unauthorized user by the cloud administration, but there is no security provision to prevent unauthorized access by the cloud administrators to the client data on the cloud computing. In this paper, we demonstrate how steganography, which is a secrecy method to hide information, can be used to enhance the security and privacy of data (images) maintained on the cloud by mobile applications. Our proposed model works with a key, which is embedded in the image along with the data, to provide an additional layer of security, namely, confidentiality of data. The practicality of the proposed method is represented via a simple case study.

关键词： Cloud Computing Mobile Computing software security software Privacy Data Hiding Steganography Encryption

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Research on the Construction of Computer Network security System in Middle School Campus Network

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Journal of Electronic Research and Application 2023年第3期7卷 27-32页

作者： Haijing Xing Mengzi Vocational Education Center Mengzi 661199Yunnan ProvinceChina

In order to improve the security of high school campus networks,this paper introduces the goal,system composition,and function of the network security of high school campus networks,and puts forward a series of strategies,including the establishment of network security protection system,data backup and recovery mechanism,and strengthening network security management and *** these strategies,the safety and stable operation of the campus network can be ensured,the quality of education can be improved,and school’s development can be promoted.

关键词： Network security Physical security software security

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