基于贝叶斯网络信任构建来缓解MANET网络安全威胁

发布时间：2018-02-13 19:10

本文关键词： MANET网络网络安全威胁网络信任贝叶斯法恶意行为信任模型网络信道网络攻击节点数随机移动 　出处：《通信对抗》2015年03期 　论文类型：期刊论文

【摘要】：由于移动Ad hoc(MANET)网络具有无固定基础设施、通信信道不可靠、节点随机移动等特性,对其安全问题的研究一直富有挑战性。信任机制结合加密技术可以有效缓解各类网络攻击(例如丢包攻击)。考虑到MANET网络的特性,需采取智能化方法来实现信任构建,进而发现攻击者的恶意行为。文章侧重缓解丢包攻击与数据包篡改攻击威胁,提出了一种基于贝叶斯网络的可信度评估构建机制,该机制可有效进行因果推理。文章提出的信任模型可有效区别导致网络丢包的不同原因:是由于网络信道不可靠,还是由于遭受恶意攻击。这样,即可计算出更精确的可信度。最后,仿真结果表明文章所提算法在恶劣网络环境中可行且有效。
[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.

【作者单位】： Department
【分类号】：TN929.5

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