使用CCF保护移动代码的实现研究

Implementation Research for Protecting Mobile Code Using CCF

如何使用加密方法保护智能体不受恶意主机的攻击是近些年来移动智能体安全研究方面的关键问题。最近的基于“加密函数”的计算方法局限于只有智能体的源发处知道计算结果。在文章的前序论文——ProtectingAutonomousAgentsbyUsingCCF中,提出了一种新的方案CCF(Crypto-ComputingwithFeedback,带反馈的加密计算),它支持自治智能体在远程主机上完成安全计算。文章先简单说明CCF的原理,然后介绍实现这一系统的设计方案。

How to use cryptographic methods to protect agent from malicious host is the key issue in the research of mobile agent security,recent approaches based on computing with “encrypted functions” is limited to the case where only the agent originator learns the result of the computation.In our previous paper,a novel approach based on CCF （Crypto-Computing with Feedback） technique is introduced for supporting autonomous agent to accomplish secure computation on the remote hosts.In this paper,we introduce basic theory for CCF briefly,and the implementation for CCF is also presented.