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文中提出的电力光纤通信网安全风险的量化模型,从两条路径对风险的相关要素之间的关系进行分析,首先从风险定义的两个因素发生概率和影响程度与资产、威胁和脆弱性之间的关系出发,用公式具体解释它们是如何构成风险的,然后从资产对应的脆弱性,脆弱性面临的威胁,和威胁对应的相关安全措施来计算风险值,最后以SDH设备为例对模型进行了验证,结果表明该模型对于风险值计算具有相对客观和准确性。
The quantitative model of the security risk of power optical fiber communication network proposed in this paper analyzes the relationship between the related factors of risk from two paths. First, from the two factors of risk definition, the probability and influence degree and the assets, threats and vulnerabilities Then formulate the concrete explanation of how they constitute the risk, and then calculate the risk value from the corresponding vulnerability of the asset, the threat to the vulnerability and the relevant security measures corresponding to the threat. Finally, taking the SDH device as an example, The results show that the model is relatively objective and accurate for the calculation of risk value.