按需装配Agent系统的构件安全机制研究

Study on Component Security of Assemble-on-demand Agent System

按需装配Agent是一种能够在运行过程中根据系统当时的需求,动态地加载相应功能构件,更好地完成任务的Agent。构件是按需装配Agent的重要组成部分。它的安全性将直接影响到Agent的自身安全性、其任务结果的正确性以及对被访问的主机的安全性,也成为按需装配Agent系统安全的重要问题。笔者在研究按需装配Agent的概念和系统模型的基础上,提出了影响构件安全的主要环节:构件在传输环节安全和构件在主机中驻留环节安全;利用IDEA算法、RSA算法和MD5算法的各自特性,使用组合链式加密算法,设计了Agent构件的安全机制,有效地解决了按需装配Agent系统的构件的安全性问题。

Assemble-on-Demand Agent is a kind of Agent, which can load the corresponding function component dynamically on demand in completing the task. The component is the important component of Assemble-on-Demand Agent. Its security will influence Agent security, Agent task result and security to the host computer to be visited. It has become an important issue in Assemble-on-Demand Agent system. After studying the concept of assembling Agent and its system model, the main links influencing the key component security are put forward, i.e. component transportation security and visiting computer. The security mechanism of Agent component is designed utilizing the respective character of IDEA algorithm, RSA algorithm and MD5 algorithm to make up complex encrypt algorithms, which could effectively solve the security issue of the component.