嵌入式系统可生存性评估关键技术研究
发布时间：2019-05-29 15:11
【摘要】：嵌入式系统是以计算机技术为基础，以应用为主体，软硬件可调整，对成本、功能、功耗、体积、可靠性有着非常高标准要求的专用计算机系统。嵌入式技术的快速发展使嵌入式系统的应用遍及工业控制、航天、金融、信息家电、医疗、通信、军事等各个领域，同时也使嵌入式系统安全问题变得日益凸显。如何保证嵌入式系统在各种威胁环境下的能够持续提供服务，显得尤为重要，这正是嵌入式系统可生存性研究的问题。嵌入式系统可生存性可描述为遭受攻击、故障或意外情况时，系统利用生存性策略形成抵抗攻击、识别威胁、系统恢复功能使其继续提供关键服务的能力。 本文从系统环境、系统威胁、系统可生存性需求、系统可生存性策略四个方面入手，建立了一套嵌入式系统可生存性评估系统。主要贡献和创新点为：对嵌入式系统进行了形式化定义；根据嵌入式系统特点将系统抽象成一个分层结构模型，并研究各层的可生存性策略，分析系统可能面临的各种威胁，，结合系统可生存性需求，提出了一套嵌入式系统可生存性分析模型；建立了嵌入式系统可生存性定量评估指标体系；分析现有系统评估方法特点确定了嵌入式系统可生存性评估方法并设计了评估流程；采用Java开发语言实现了嵌入式系统可生存性评估系统，通过实例验证了系统的可行性和有效性。
[Abstract]:Embedded system is a special computer system which is based on computer technology, mainly based on application, adjustable software and hardware, and has very high standard requirements for cost, function, power consumption, volume and reliability. With the rapid development of embedded technology, embedded systems are widely used in industrial control, aerospace, finance, information appliances, medical, communication, military and other fields. At the same time, the security problems of embedded systems become increasingly prominent. How to ensure that embedded systems can continue to provide services in a variety of threat environments is particularly important, which is the problem of embedded system survivability research. The survivability of embedded system can be described as the ability to use survivability strategy to resist attacks, identify threats and restore the system to continue to provide critical services in the event of attack, failure or accident. In this paper, a set of embedded system survivability evaluation system is established from four aspects: system environment, system threat, system survivability requirement and system survivability strategy. The main contributions and innovations are as follows: the formal definition of embedded system is carried out; According to the characteristics of embedded system, the system is abstracted into a hierarchical structure model, and the survivability strategy of each layer is studied, and the various threats that the system may face are analyzed, combined with the survivability requirements of the system. A set of survivability analysis model of embedded system is proposed. The quantitative evaluation index system of embedded system survivability is established, the characteristics of existing system evaluation methods are analyzed, and the evaluation method of embedded system survivability is determined and the evaluation process is designed. The survivability evaluation system of embedded system is realized by Java development language, and the feasibility and effectiveness of the system are verified by an example.
【学位授予单位】：国防科学技术大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1
[Abstract]:Embedded system is a special computer system which is based on computer technology, mainly based on application, adjustable software and hardware, and has very high standard requirements for cost, function, power consumption, volume and reliability. With the rapid development of embedded technology, embedded systems are widely used in industrial control, aerospace, finance, information appliances, medical, communication, military and other fields. At the same time, the security problems of embedded systems become increasingly prominent. How to ensure that embedded systems can continue to provide services in a variety of threat environments is particularly important, which is the problem of embedded system survivability research. The survivability of embedded system can be described as the ability to use survivability strategy to resist attacks, identify threats and restore the system to continue to provide critical services in the event of attack, failure or accident. In this paper, a set of embedded system survivability evaluation system is established from four aspects: system environment, system threat, system survivability requirement and system survivability strategy. The main contributions and innovations are as follows: the formal definition of embedded system is carried out; According to the characteristics of embedded system, the system is abstracted into a hierarchical structure model, and the survivability strategy of each layer is studied, and the various threats that the system may face are analyzed, combined with the survivability requirements of the system. A set of survivability analysis model of embedded system is proposed. The quantitative evaluation index system of embedded system survivability is established, the characteristics of existing system evaluation methods are analyzed, and the evaluation method of embedded system survivability is determined and the evaluation process is designed. The survivability evaluation system of embedded system is realized by Java development language, and the feasibility and effectiveness of the system are verified by an example.
【学位授予单位】：国防科学技术大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1
【参考文献】
相关期刊论文 前10条
1 刘文清;韩乃平;陈U
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