本文關(guān)鍵詞： MANET網(wǎng)絡(luò) 網(wǎng)絡(luò)安全威脅 網(wǎng)絡(luò)信任 貝葉斯法 惡意行為 信任模型 網(wǎng)絡(luò)信道 網(wǎng)絡(luò)攻擊 節(jié)點數(shù) 隨機移動 　出處：《通信對抗》2015年03期 　論文類型：期刊論文

【摘要】：由于移動Ad hoc(MANET)網(wǎng)絡(luò)具有無固定基礎(chǔ)設(shè)施、通信信道不可靠、節(jié)點隨機移動等特性,對其安全問題的研究一直富有挑戰(zhàn)性。信任機制結(jié)合加密技術(shù)可以有效緩解各類網(wǎng)絡(luò)攻擊(例如丟包攻擊)�？紤]到MANET網(wǎng)絡(luò)的特性,需采取智能化方法來實現(xiàn)信任構(gòu)建,進而發(fā)現(xiàn)攻擊者的惡意行為。文章側(cè)重緩解丟包攻擊與數(shù)據(jù)包篡改攻擊威脅,提出了一種基于貝葉斯網(wǎng)絡(luò)的可信度評估構(gòu)建機制,該機制可有效進行因果推理。文章提出的信任模型可有效區(qū)別導(dǎo)致網(wǎng)絡(luò)丟包的不同原因:是由于網(wǎng)絡(luò)信道不可靠,還是由于遭受惡意攻擊。這樣,即可計算出更精確的可信度。最后,仿真結(jié)果表明文章所提算法在惡劣網(wǎng)絡(luò)環(huán)境中可行且有效。
[Abstract]:The mobile Ad hoc network (MANET) has no fixed infrastructure, unreliable communication channel, node random movement characteristics, the research on their security has been challenging. Encryption technology can effectively alleviate various network attacks with trust mechanism (such as packet loss attacks). Considering the characteristics of the MANET network to intelligent method to achieve the trust building, and then find the malicious behavior of the attacker. It focuses on packet loss and packet tampering attacks to alleviate the threat of attack, we propose a Bayesian network reliability evaluation based on constructing mechanism, this mechanism can effectively cause reasoning. The proposed trust model can effectively identify the different causes of packet loss due to network: the channel is not reliable, or due to malicious attacks. So, we can calculate the more accurate credibility. Finally, the simulation results show that the proposed algorithm It is feasible and effective in bad network environment.

【作者單位】： Department
【分類號】：TN929.5

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本文編號：1508892