基于拜占廷协议的容侵触发器研究及实现

Study and Implementation of Intrusion-tolerant Trigger based on Byzantine Protocol

当信息系统存在入侵时,容忍入侵技术能够最大限度保障关键服务的运行。根据拜占廷协议和复制技术,设计出一种自适应容侵触发器,在节点和系统两个级别上实现入侵容忍,并研究攻击隔离和自动恢复技术,增强系统抵抗攻击的能力。实验结果表明,能够构建具有入侵容忍能力的连续服务系统,并能够在对响应时间要求不太严格但要求不间断运行的系统中得到应用。

Intrusion tolerance technologies can ensure essential services running to the full extent when system is intruded. Based on Byzantine protocol and replication technology, an adaptive intrusion-tolerant trigger is proposed, which can achieve intrusion tolerance in the node-level and system-level. Attack isolation and self-recovery technologies are researched to enhance the system automatically. Experimental results show that a continuous service system having capability of intrusion-tolerant can be constructed by the trigger. The trigger also can be applied to an uninterrupted running system without strict requirement of response time