最后，提出了一套移动电子商务系统的安全解决方案。

At last, a series of security solutions of mobile commerce system are proposed.

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首先是移动代理系统的安全问题，特别是恶意主机问题；其次是电子商务中的公平交易问题。

First is the security of mobile agent system, especially the malicious host problem; Second is the fair exchange problem in electronic commerce.

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