容忍入侵系统中复制技术的研究

针对传统的被动复制技术不能容忍拜占庭错误的缺点,提出了一种改进的被动复制技术,使其可以初步容忍拜占庭错误,并给出了模型。该模型通过增加硬件检测机制,克服了被动复制的缺点,充分利用了被动复制开销小、容易实现的优点。组通信系统的可靠性一直是容忍入侵系统设计的重点和难点。群组通信系统通信量大,基于传统的组通信模型,设计了一种可靠组通信模型,其优点是通信量小,而且保证了各个复制品之间的最终一致性。

Research of Replication Technology in Intrusion-tolerance System

An improvement on passive replication technology is proposed because traditional passive replication can not tolerant Byzantine fault. The model can primary tolerant Byzantine fault. Based on adding hardware check method, overcome shortcomings of passive replication, and taking in advantage of low cost and easy realization of passive replication technology are presented. The credible of group communication always is import and difficult. It is communication message is too large. Base of tradation group communicaton model design a credible group communication model, the advantage is communication message lower and guarantee that all replicas are consistent at last.