【作者】 张楠；

【导师】 李志蜀；

【作者基本信息】 四川大学 ， 计算机应用技术， 2006， 博士

【摘要】 随着计算机网络应用规模的日益扩大,计算机网络安全隐患变得越来越突出。如何设计安全措施来防范未经授权的数据访问和非法的资源利用,是当前网络安全领域一个十分重要而迫切的问题。我们无法完全防止入侵,只能在系统受到攻击的时候,能够尽快检测出该入侵。生物免疫系统是生物体内结构最为复杂、功能最为独特的系统。它旨在区分外部有害抗原和自身组织,从而清除病原并保持有机体的稳定。从计算的角度来看,生物免疫系统是一个高度并行、分布、自适应和自组织的系统,由许多执行免疫功能的器官、组织、细胞和分子等组成,其主要作用是能够辨别“自己”与“异己”物质,对之作出精确应答,具有很强的学习、识别、记忆和特征提取能力。生物免疫系统给了我们很大的灵感,计算机的安全问题与生物免疫系统所遇到的问题具有惊人的相似性,两者都要在不断变化的环境中维持系统的稳定性。计算机面临的威胁与危险,如对保密性、完整性和可用性的侵犯,都可能由内部和外部的部件故障或者入侵行为引起。我们发现生物体安全与计算机安全有着许多相似之处,其中包括:分布性、多样性、适应性、自治性、动态特征、异常检测、多层次、通过行为识别身份、不完全检测等等。保护计算机免遭有害病毒等的破坏,可以看作是区分如合法更多还原

【Abstract】 Along with the scale of network application expanding, the trouble of computer security is standed up. It is an important and urgent that how to design a safety precautious to keep unauthorized data and resource away. We can not prevent intrusions completely, but can check the intrusions as soon as possible.Biological immune system is the most complex and most especially in organism. It aims at to deffetent exterior antigen from self tissue, cleans the pathogeny up, and maintains the stabilization of organism. From calculating point of view, the Biological immune system can be regards as a parallel, distributed, self-adapt and self-organised system with the character of study, identify, memory and character distilling.The natural immune system gives us a great of inspiration. The roblems of computer security and those of natural immune system are very similar. They both need maintain the stability of system in variational enviromment.There are many similar points between security of organism and that of computer. For example: distributed, diversity, adaptability, self-government, dynamic, multilayer, identify by action, imperfected detection and so on. To detect the更多还原