论文部分内容阅读
P2P网络的节点度近似服从幂律分布的无标度特性导致了这类网络对随机故障的鲁棒性和对蓄意攻击的脆弱性.为提高其抵抗蓄意攻击的能力,提出了一种经济、高效的分散式目标免疫策略,针对(1)具有最高连接度的节点、(2)具有最高可用性的节点和(3)与具有最高负载的链路直接相连的节点这三类目标实施免疫,设计了基于NoN-indexing机制的熟人免疫方法,能够仅利用网络拓扑局部知识和仅免疫少量关键节点,即可大幅度提高P2P网络的抗蓄意攻击能力.仿真实验结果验证了该分散式免疫策略的经济性和高效性.
The scale-free nature of nodes with P2P approximation power-law distribution leads to the robustness of these networks to stochastic failures and their vulnerability to intentional attacks.In order to improve their ability to resist deliberate attacks, this paper proposes an economical, Efficient decentralized target immunization strategies are targeted at (1) the node with the highest degree of connectivity, (2) the node with the highest availability and (3) the node directly connected with the link with the highest load Based on the NoN-indexing mechanism of the acquaintance immunization method, we can greatly improve the anti-deliberate attack ability of the P2P network by using only local knowledge of the network topology and immune only a few critical nodes.The simulation results verify the economy of the decentralized immunization strategy Sexuality and efficiency.