Then, after SSE-CMM is explained, a risk-analysis-centric model of information system security engineering is established using system engineering theory.

在充分研究SSE CMM模型的基础上，采用系统工程的思想，建立了以风险分析为中心的信息系统安全生命期模型。

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Encryption technology is an important element of an information-centric security solution, as critical information is increasingly on mobile devices and in the cloud.

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