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Software running security risk evaluation method based on Malmquist index

A technology for operating security risk and evaluation method, which is applied in the field of software security risk evaluation based on Malmquist index, which can solve the problems of delayed response, weak real-time response capability, and inability to track and analyze real-time data.

Active Publication Date: 2012-07-25
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0007] The purpose of the present invention is aimed at the characteristics of wireless sensor networks. This typical task-oriented, data-centered service collaborative network information system increasingly relies on irreplaceable hazard prevention and the current security risk assessment method generally adopts The static analysis method cannot track and analyze real-time data, and has the disadvantages of lagging response and weak real-time response ability. A dynamic software operation security risk assessment method based on Malmquist index is proposed, so as to realize dynamic tracking and Analyze system risk and provide basis for follow-up work

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  • Software running security risk evaluation method based on Malmquist index
  • Software running security risk evaluation method based on Malmquist index
  • Software running security risk evaluation method based on Malmquist index

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0057] Such as figure 1 As shown, a security risk assessment method based on Malmquist index, the steps are as follows:

[0058] The first step is to determine the decision-making unit and input-output. Because the safety risk evaluation method is studied here, it is necessary to identify and judge the risk, so it is appropriate to take the total risk value as the output; the failure of key software operation is the key factor leading to risk, and software failure is caused by Errors are caused by the propagation of errors to the user interface, and software errors are caused by activating software defects, so there is a causal relationship between these two, then the monitoring of risks can be transformed into the monitoring of failures, errors and even defects. Therefore, the investment is set as an indicator that can reflect failure, error and defe...

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Abstract

A software running security risk evaluation method based on a Malmquist index includes the steps: obtaining risk output frontiers and risk values of all software mainly running at time points t by a data envelopment analysis method; obtaining a Malmquist index value between two time points according to the frontiers and the risk values; and finally, computing a risk level at each time point to evaluate risks according to the Malmquist index value and an initial risk level. By making full use of characteristics of data envelopment analysis and the Malmquist index, risk migration and change can be timely monitored, so that the risks can be effectively relieved or eliminated.

Description

technical field [0001] The invention belongs to risk evaluation technology, in particular to a dynamic software safety risk evaluation method based on Malmquist index. Background technique [0002] In today's society, computer technology develops very rapidly and has penetrated into all walks of life. Some of these industries are closely related to the safety of people's lives and properties. Once dangerous situations occur in these industries, the consequences will be unimaginable. Therefore, when computers are used to control related software in these industries, the issue of software risk prevention becomes very important, and these software can be called safety-critical software. [0003] With the emergence and popularization of wireless sensor network information systems, this typical task-oriented, data-centered service collaborative network information system increasingly relies on hazard prevention irreplaceably. Many sensor network application systems urgently nee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/36
Inventor 李千目赵致侯君路国翠
Owner NANJING UNIV OF SCI & TECH
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