發(fā)布時間：2018-10-08 19:29

【摘要】：目前,網(wǎng)絡(luò)技術(shù)已獲得了前所未有的發(fā)展,在軍事、經(jīng)濟、生活和政治等領(lǐng)域中都得到了廣泛運用。然而,由網(wǎng)絡(luò)病毒的入侵和傳播引起的網(wǎng)絡(luò)安全事件頻頻出現(xiàn),網(wǎng)絡(luò)安全問題日益凸顯。網(wǎng)絡(luò)病毒防御模型可為防御網(wǎng)絡(luò)病毒提供策略指導(dǎo),同時對確保網(wǎng)絡(luò)的可用性、保密性和完整性,以及確保整個網(wǎng)絡(luò)正常運行不受網(wǎng)絡(luò)病毒的入侵都起到關(guān)鍵性的作用。本文深入探討和分析了基于博弈論的網(wǎng)絡(luò)病毒防御模型,主要研究內(nèi)容有:網(wǎng)絡(luò)病毒傳播模型的建立,網(wǎng)絡(luò)服務(wù)提供商(ISPs)與網(wǎng)絡(luò)病毒之間博弈模型的建立,以及ISPs最優(yōu)投資點模型的建立,并基于以上模型進行了動力學(xué)分析,具體內(nèi)容如下:(1)建立網(wǎng)絡(luò)病毒傳播模型�；赟IR(susceptible-infected-recovered)倉室模型將ISPs分成三類:易感者類S(t);感染者類I(t);恢復(fù)者類R(t),并在模型中考慮了ISPs采取安全措施時的相對風(fēng)險,分析了網(wǎng)絡(luò)病毒在不同策略下的傳播性態(tài)。(2)建立ISPs與網(wǎng)絡(luò)病毒之間的博弈模型。在模型中考慮了ISPs在出口檢測和入口檢測策略下的不對等性,研究了出口檢測的必要性,分析了ISPs策略改變時對病毒傳播的影響以及ISPs在不同策略集下對應(yīng)的收益變化,對ISPs的策略選擇提供了指導(dǎo)。(3)建立ISPs最優(yōu)投資點模型。在模型中考慮了病毒在網(wǎng)絡(luò)中傳播的隨機過程,從病毒傳播模型和病毒到達規(guī)律這兩點作出分析,通過微分方程和泊松過程分析了ISPs的最優(yōu)投資點的存在條件。
[Abstract]:At present, network technology has achieved unprecedented development, and has been widely used in military, economic, life and political fields. However, the network security events caused by the invasion and spread of the network virus appear frequently, and the network security problems become more and more prominent. The network virus defense model can provide policy guidance for the defense of network viruses, and also play a key role in ensuring the availability, confidentiality and integrity of the network, as well as ensuring the normal operation of the entire network from the intrusion of network viruses. This paper deeply discusses and analyzes the network virus defense model based on game theory. The main research contents are as follows: the establishment of the network virus transmission model, the establishment of the game model between the network service provider (ISPs) and the network virus, and the establishment of the game model between the network virus and the network virus. And the ISPs optimal investment point model is established, and based on the above model, the dynamics analysis is carried out. The main contents are as follows: (1) establish the network virus transmission model. Based on the SIR (susceptible-infected-recovered) storeroom model, the ISPs was divided into three categories: the susceptible type, the S (t); infected class, the I (t); recovery class, R (t), and the relative risks of ISPs when taking safety measures were considered in the model. The transmission behavior of network virus under different strategies is analyzed. (2) the game model between ISPs and network virus is established. In the model, the inequity of ISPs in export detection and entry detection is considered, the necessity of export detection is studied, the influence of ISPs policy change on virus transmission and the corresponding profit variation of ISPs under different policy sets are analyzed. It provides guidance for the choice of ISPs strategy. (3) the optimal investment point model of ISPs is established. The stochastic process of virus transmission in the network is considered in the model, and the existence conditions of the optimal investment point of ISPs are analyzed by differential equation and Poisson process.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TP393.08

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