本文档是作为 DARPA CHATS 研究计划的一部分，由供职于 Security Research Division of Network Associates 公司Safeport Network Services and Network Associates Laboratories 的Chris Costello依据 DARPA/SPAWAR 合同 N66001-01-C-8035 (“CBOSS”)，为 FreeBSD 项目编写的。
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