用于入侵容忍数据库系统的多阶段控制技术  

Multiphase confinement for intrusion tolerant database system

作　　者：李文才[1] 孟丽荣[1] 于常辉[1] 

机构地区：[1]山东大学计算机科学与技术学院,山东济南250061

出　　处：《计算机应用》2006年第2期383-384,共2页journal of Computer Applications

摘　　要：传统入侵容忍数据库系统的破坏控制是一阶的,对象直到破坏评估器确认其受到破坏才被控制,时间延迟导致破坏的扩散而影响数据库系统的可用性,针对这个问题提出了多阶段破坏控制方案。给出了多阶段破坏控制技术模型,及多阶段破坏控制方案中各阶段的任务。最后,给出了多阶段破坏控制各阶段的效率分析。多阶段破坏控制方案有效地拒绝了破坏扩散,保证了数据库系统的可用性。Traditional damage confinement of intrusion tolerant database systems is one phase. Damaged objects are confined until damage assessor finds they are damaged. However, time latency causes damage spread. Serious damage spread usually causes the unavailability of database systems. To solve the problem, multiphase confinement solution was given. The model of multiphase confinement solution was defined, The functions of the phases of multiphase confinement solution were descrlhed. Finally, the model was evaluated and analyzed through experiments. Multiphase confinement solution can defuse time latency and avoid damage spread, so it can confirm the availability of database systems effectively.

关 键 词：入侵容忍 多阶段控制 破坏控制 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]