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.

youdao

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.

youdao