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文章针对目前邮件系统的安全隐患,提出一个面向政府部门的安全电子邮件系统的模型,并介绍其实现的关键技术。该模型主要解决了邮件系统中存在的身份鉴别、防止抵赖、保密性、完整性等安全问题。最后根据当前常用的电子邮件攻击手段给出该系统的安全评估。
In this paper, aiming at the security problems of the current e-mail system, this paper proposes a model of secure e-mail system for government departments and introduces the key technologies for its realization. The model mainly solves the security problems existing in the mail system, such as identity authentication, non-repudiation, confidentiality and integrity. Finally, the security evaluation of the system is given based on the commonly used e-mail attack methods.