嵌入式实时多任务操作系统安全性的分析与研究  

Security Analysis and Research of Embedded Real-time Multi-task Operating System

作　　者：刘永奎[1] 蒋天发[1] 

机构地区：[1]中南民族大学计算机科学学院,湖北武汉430073

出　　处：《现代电子技术》2008年第14期25-26,32,共3页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(40571128);国家民委重点科研资助项目(Mzy02004)

摘　　要：随着嵌入式技术的发展,嵌入式实时多任务操作系统已经被广泛使用,因为其安全性关系到整个信息系统,若处理不当可能引起系统的崩溃,因此很有必要研究其安全性。针对嵌入式实时多任务操作系统的安全性提出2点改进:调度策略的改进;软件分层。实践表明这2个方法能很好地保护系统的安全。当然,每个系统都有其固有的安全缺陷,这就需要在实践中不断摸索和积累经验。最后以Linux操作系统为例具体分析如何提高其安全性。With the development of embedded technology,ROTS has been used spreadly. Because its security is related to the whole information system,if handled improperly may cause the collapse of system, so it is necessary to research its security. two improvements about the security of RTOS are put forward in this paper： one is the improvement of scheduling, the other is software layered. Practice shows that these two methods can protect the system very well. Of course,each system has inherent security flaws, this requires exploring and accumulating experience gradually in practice. Finally, takes Linux operation system as example to analyze how to improve its secutity.

关 键 词：实时多任务操作系统 时间片轮转调度 LINUX操作系统 权限分割 缓冲区溢出 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]