Research Of Virus Dynamics Model Under Security Classification And Optimization Control Strategy

The rapid development of computer network technology both bring the great convenience of the people and some anxieties today.Computer viruses,or all plug-ins and codes that have infected and cracked effects on the Internet,can also cause serious threats to computer networks or personal computers,and also become easier to spread and infect because of the development of network technology.What measures or technologies for controlling the spread of computer viruses has become an important research topic in the field of network information security nowadays.The article which is from the use of computer virus dynamic communication is to study the propagation of computer virus,in the premise of excellent ideas presented by predecessors,taking into account the computer security classification which accords with the elements of the actual situation,proposed a new computer virus propagation model and optimal control model,the main the results are as follows:1.A new computer virus model which introduced a threshold to control the security upgrades of computer is proposed.When the number of computer virus infection in the network exceeds the threshold,a computer security upgrade operation will be activated.Through the calculation analysis model,it is found that there exists equilibrium conditions and stable equilibrium conditions.Using the digital simulation experiment to further verify the conclusion of the analysis model,and combine the conclusion and the experimental results,a new idea of computer virus control is proposed.Setting the threshold to a suitable value will make the number of nodes infected by the virus least in the stable network,which is the number of computer virus infection when the security is stabilized after the security upgrade.2.On the basis of the new computer virus model,an optimal control model is proposed,which optimizes the cure rate of the virus infected computer and optimizes the comprehensive index of the control model.Based on the new computer virus model,an optimal control model is proposed to optimize the cure rate of infected virus,and optimize the comprehensive index of the control model.The above research results can provide better inspiration for us to understand the rule of computer virus transmission,and also help us better control the virus.