需求装载代码协议的安全缺陷分析

Analysis for Security Flaw in Demand Loading Code Protocol

使用SPI演算对主动网络的需求装载代码协议进行分析,发现其存在被重放攻击的安全漏洞.由于主动网络是计算-存储-转发模型,不同于传统网络的存储-转发模型,所以这种被重放攻击的安全缺陷将对主动节点产生难以预测的后果,并减低其性能和效率.为了消除被重放攻击的危险,修改了原有需求装载代码协议,并增加了其阻止重放攻击的能力.

The authors use SPI calculus to analyze the demand loading code protocol of active network. The security flaw of being replay attack in this protocol is found. Model of active network is different from the tradition network. Since the model of active network is compute-storage-forward, and the model of tradition network is storage-forward. The replay attack would make the unexpected result for active network and letdown the performance and efficiency of active node. In order to prevent the replay attack, the authors amend the protocol and enhance the capacity for preventing replay attack.