安全结构化对等网络的节点信誉管理机制

摘要

提出一种安全结构化对等网络的节点信誉管理机制.使用全局储存方式保存信誉度信息,将文件信誉与节点信誉相结合,避免恶意节点通过修改标识符伪装友好节点的行为.对文件共享系统中的基本操作过程进行分析.在各种节点行为下进行模拟实验,结果证明了该信誉管理机制的有效性.%As the viruses and trojan horses are in flood, the security of smart card terminals can not always be guaranteed. Some risks may still exist in life cycle of the private key file such as generation, replacement and revocation process, resulting in various types of problems in the Public Key Infrastructure(PKI) applications based on private-key as a core. This paper elaborates the original security system of smart card, then conducts the research to the private key's use process in the entire smart card life cycle, carries on comprehensive and the thorough analysis to the latent risk, and proposes a smart card private key protection solution based on the production public key certificate.