本文關鍵詞： Ad Hoc網(wǎng)絡 隨機博弈網(wǎng) 連續(xù)時間馬爾科夫鏈 安全評價與分析方法　出處：《東華大學》2014年碩士論文　論文類型：學位論文

【摘要】：隨著Ad Hoc網(wǎng)絡的發(fā)展,其安全問題受到了人們的廣泛關注。近年來,國內(nèi)外學者對Ad Hoc網(wǎng)絡的安全策略進行了大量的研究,而在Ad Hoc網(wǎng)絡的安全評價與分析方面的研究卻寥寥無幾。建立一種行之有效的Ad Hoc網(wǎng)絡安全評價與分析方法可以為Ad Hoc網(wǎng)絡安全策略的設計提供方向。 本文提出了一種基于隨機博弈網(wǎng)的Ad Hoc網(wǎng)絡安全評價與分析方法。該方法通過構建Ad Hoc網(wǎng)絡的攻防隨機博弈網(wǎng)模型并計算得到納什均衡策略,然后將模型轉化為一個同構的連續(xù)時間馬爾科夫鏈(CTMC),通過計算CTMC的穩(wěn)態(tài)概率就可以對Ad Hoc網(wǎng)絡的安全進行評價與分析。最后本文通過matlab對各項安全指標進行了數(shù)據(jù)仿真,實驗結果表明：攻擊成功概率與攻擊響應時間只與Ad Hoc攻擊行為的期望收益與攻擊強度有關而與攻擊速率無關；Ad Hoc網(wǎng)絡系統(tǒng)的可靠性與Ad Hoc攻擊行為的期望回報、攻擊強度和攻擊速率都有關。
[Abstract]:With the development of Ad Hoc network, people pay more and more attention to the security problem of Ad Hoc network. In recent years, scholars at home and abroad have done a lot of research on the security strategy of Ad Hoc network. However, there are few researches on the security evaluation and analysis of Ad Hoc network. The establishment of an effective method for Ad Hoc network security evaluation and analysis can be used as an effective method for Ad Hoc network security evaluation and analysis. The Hoc network security policy design provides the direction. In this paper, a method of security evaluation and analysis for Ad Hoc networks based on stochastic game nets is proposed. The method is based on the construction of Ad Hoc networks. The attack and defense stochastic game net model of Hoc network and the Nash equilibrium strategy are calculated. Then the model is transformed into an isomorphic continuous time Markov chain (CTMC). By calculating the steady-state probability of CTMC, the security of Ad Hoc network can be evaluated and analyzed. Finally, the data simulation of each security index is carried out by matlab. The experimental results show that the attack success probability and the attack response time are only related to the expected return of Ad Hoc attack behavior and the attack intensity, but not to the attack rate. The reliability of Ad Hoc network system is related to the expected return of Ad Hoc attack behavior, attack intensity and attack rate.
【學位授予單位】：東華大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN929.5

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