We first analyse the security threats that DBMS must face and introduce a security threat model.

本文首先分析了数据库管理系统可能面临的各种安全威胁，引入了一个安全威胁模型。

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We first analyse the security threats that authentication of DBMS must face and introduce a security threat model.

本文首先分析了数据库身份认证系统的安全威胁，提出一个安全威胁模型。

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Experiments show that using this model can effectively assess the security threat status of large-scale network.

实验表明，使用该模型能有效评估大规模网络的安全威胁状况。

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