图2显示了在客户端设备上运行的MQe如何与服务器端应用程序相集成，从而提供安全的端到端消息传递解决方案。

Figure 2 shows how MQe running on a client device can interact with server-side applications to provide a secure, end-to-end message delivery solution.

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本文重点研究：在不可信赖的客户端应用环境下，智能卡应用系统存在的安全性问题及其可行的解决方案。

This paper focus on the research of the security problems and its countermeasures of the smart card application systems in the unreliable customer environments.

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