网络信息传输中对攻击快速防御仿真研究

发布时间：2019-02-16 06:32

【摘要】：对网络信息传输中对攻击的快速防御,能够有效保障在攻击下安全可靠地运行。对网络信息传输中攻击的防御,需要分析网络频谱特征进行攻击链路层漏洞检测,对网络入侵攻击进行量化评估,完成对攻击快速防御。传统方法对数据进行降维处理,组建支持向量机超球体模型,但忽略了对网络入侵攻击进行量化评估,导致防御效果不理想。提出基于安全威胁量化评估的网络信息传输中攻击防御方法。上述方法首先进行网络入侵攻击防御解析模型设计,对攻击下的链路漏洞数据进行双曲调频分解,分析链路漏洞层的慢变衰落特性,利用混叠谱模糊度函数分析网络频谱特征进行攻击链路层漏洞检测,对网络入侵攻击进行量化评估,组建网络入侵攻击防御收益与代价的量化评估指标体系,完成网络信息传输中攻击防御。仿真结果证明,所提方法网络攻击检测性能较好,展示了优越的安全防御价值。
[Abstract]:The fast defense against attack in network information transmission can effectively guarantee the safe and reliable operation under attack. To prevent attacks in network information transmission, it is necessary to analyze the characteristics of network spectrum to detect the vulnerability of attack link layer, to evaluate the network intrusion attack quantitatively, and to finish the fast defense against the attack. The traditional methods are used to reduce the dimension of the data and build the hypersphere model of support vector machine, but the quantitative evaluation of the network intrusion attack is neglected, which leads to the unsatisfactory defense effect. This paper presents an attack defense method in network information transmission based on security threat quantification evaluation. Firstly, the analytical model of network intrusion defense is designed, the link vulnerability data under attack is decomposed by hyperbolic frequency modulation, and the slow fading characteristic of link vulnerability layer is analyzed. Using aliasing spectrum ambiguity function to analyze the characteristics of network spectrum to detect the vulnerability of attack link layer, to evaluate the network intrusion attack quantitatively, and to set up the quantitative evaluation index system of the profit and cost of network intrusion attack defense. Completes the network information transmission attack defense. Simulation results show that the proposed network attack detection method has good performance and shows the superior value of security and defense.
【作者单位】：重庆医科大学医学信息学院;
【基金】：重庆市科技计划重大专项(cstc2015shms-ztzx10011)
【分类号】：TP393.08

【相似文献】