摘要：入侵特征值识别和发现算法是误用入侵检测中的关键技术。
Absrtact: Invasion eigenvalue and discovery algorithm are the key technologies to misuse intrusion detection technology.
误用入侵检测技术中最重要的一个环节是模式匹配，目前的模式匹配主要是对报文中特征字符串的匹配。
Misuse intrusion testing technology is the most important link in a pattern matching the current model of matching reported mainly on the text of character string matching.
定义了误用入侵检测系统安全级别并通过预警原理低安全级别入侵检测系统可以实现对未知入侵的预防作用。
The safety level of misuse IDS is defined and the IDS of lower safety level may prevent unknown intrusion from damage by the early-alert principle.
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