通过深入分析P2P网络中的主动型恶意代码的特征,提出一种适合于P2P网络环境的主动型恶意代码与免疫疫苗的对抗传播模型.模型根据Peer节点受主动型恶意代码及免疫疫苗的双重影响情况将节点细分为易感染、已感染、已免疫和失效这4种典型状态,并指出了节点在不同状态之间的转换规律.对所提出对抗传播模型及其相关参数展开细致的仿真实验,实验结果说明所提出的模型与实际情况相符,证明了模型的正确合理性.
A new contradiction and propagation model of proactive malicious code and vaccine in P2P network is proposed based on in-depth analysis of the active malicious code characteristics in P2P network. Considering two factors of active malicious codes and vaccines, the model differentiates peers into 4 kinds of status, such as susceptible status, infected status, healed status and disabled status. The node conversion law between different states is also pointed out. The proposed model and its related parameters have been tested by simulation experiments. Experimental results indicate that the proposed model is in accordance with the actual situations and its correctness and rationality is verified.