The diversity and complexity of the user population on the campus network increase the risk of computer virus infection during terminal information interactions.Therefore,it is crucial to explore how computer viruses ...The diversity and complexity of the user population on the campus network increase the risk of computer virus infection during terminal information interactions.Therefore,it is crucial to explore how computer viruses propagate between terminals in such a network.In this study,we establish a novel computer virus spreading model based on the characteristics of the basic network structure and a classical epidemic-spreading dynamics model,adapted to real-world university scenarios.The proposed model contains six groups:susceptible,unisolated latent,isolated latent,infection,recovery,and crash.We analyze the proposed model's basic reproduction number and disease-free equilibrium point.Using real-world university terminal computer virus propagation data,a basic computer virus infection rate,a basic computer virus removal rate,and a security protection strategy deployment rate are proposed to define the conversion probability of each group and perceive each group's variation tendency.Furthermore,we analyze the spreading trend of computer viruses in the campus network in terms of the proposed computer virus spreading model.We propose specific measures to suppress the spread of computer viruses in terminals,ensuring the safe and stable operation of the campus network terminals to the greatest extent.展开更多
While playing an increasing role in the field of air-space integrated networks,terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground,including but not limited to as...While playing an increasing role in the field of air-space integrated networks,terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground,including but not limited to astronomical risks(e.g.,solar activity),link disruptions,and malicious attacks.In the integrated air-space-space network,after the terminal entity is loaded into the rocket for launch,real-time monitoring measures are implemented on the ground site for all links to the intended orbit.On top of the real-time monitoring measures,the need for a comprehensive evaluation of the air-space integration network is growing.In this paper,we further classify the security requirements and evaluation benchmarks of the terminal entities of the air-space integration network around the security evaluation requirements of the air-space integration network.On this basis,the relevant concept of trust value is introduced to assess the security status of terminal entities of air-space-sky integrated networks,and on this basis,a security assessment system of air-space-sky integrated network terminals is proposed.The exploration and development of field applications are initially realized.展开更多
基金Project supported by the National Natural Science Foundation of China(Nos.62266030 and 61863025)。
文摘The diversity and complexity of the user population on the campus network increase the risk of computer virus infection during terminal information interactions.Therefore,it is crucial to explore how computer viruses propagate between terminals in such a network.In this study,we establish a novel computer virus spreading model based on the characteristics of the basic network structure and a classical epidemic-spreading dynamics model,adapted to real-world university scenarios.The proposed model contains six groups:susceptible,unisolated latent,isolated latent,infection,recovery,and crash.We analyze the proposed model's basic reproduction number and disease-free equilibrium point.Using real-world university terminal computer virus propagation data,a basic computer virus infection rate,a basic computer virus removal rate,and a security protection strategy deployment rate are proposed to define the conversion probability of each group and perceive each group's variation tendency.Furthermore,we analyze the spreading trend of computer viruses in the campus network in terms of the proposed computer virus spreading model.We propose specific measures to suppress the spread of computer viruses in terminals,ensuring the safe and stable operation of the campus network terminals to the greatest extent.
基金This work was supported in part by the National Natural Science Foundation of China(No.1936122)the Shanghai Aerospace Science and Technology Innovation Fund(No.2019SAST-098).
文摘While playing an increasing role in the field of air-space integrated networks,terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground,including but not limited to astronomical risks(e.g.,solar activity),link disruptions,and malicious attacks.In the integrated air-space-space network,after the terminal entity is loaded into the rocket for launch,real-time monitoring measures are implemented on the ground site for all links to the intended orbit.On top of the real-time monitoring measures,the need for a comprehensive evaluation of the air-space integration network is growing.In this paper,we further classify the security requirements and evaluation benchmarks of the terminal entities of the air-space integration network around the security evaluation requirements of the air-space integration network.On this basis,the relevant concept of trust value is introduced to assess the security status of terminal entities of air-space-sky integrated networks,and on this basis,a security assessment system of air-space-sky integrated network terminals is proposed.The exploration and development of field applications are initially realized.
