This paper first analyses the characteristic of the host -based and network -based intrusiondetectionsystems, then presents an audit system for electronic commerce system.
该文在分析基于主机和基于网络的入侵检测系统的特点的基础上，提出了一种电子商务安全审计系统的设计。
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The integrity of digital evidences was protected by integrity algorithm, which was collected and stored from intrusiondetectionsystems and host systems.
Useful information could be abstracted from audit log of computers by most of host-based intrusiondetectionsystems. Therefore, audit system become a target to be compromised by hackers or attackers.