依照Harold的说法，测试工作中最困难的方面是安全性，尤其是使用Kerberos (Windows 2000的核心安全协议)，以及包含信任。

According to Harold, the hardest aspect to get working was security, especially using Kerberos, and including trust.

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通过构建的检测系统模块测试，可以看到该协议确实达到了预期目的：安全性、灵活性和有效性。

Tests basing on the modules of detection system constructed in this thesis show that the expected security, flexibility and effectiveness are achieved in the protocol.

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