一个采用惟密文验证签字的Mobile Agent新方案

A NOVEL SCHEME OF THE MOBILE AGENT WITH THE CIPHER TEXT ONLY SIGNATURE VERIFICATION

在未来分布式计算机环境中移动代理系统起着极为重要的作用 ,这种采用异步式通信的软件代理应具有许多优点并可使整个网络的效率提高 ,因而存在广泛的应用 .但是 ,软件编制的移动代理容易受其运行主机上恶意软件的攻击 ,保护移动代理不受窜扰成为移动代理能正常运行的关键 .而一般的加密及签字技术不能直接适用于移动代理环境 ,因此 ,需要开发新的签字加密技术 .结合洋葱路由技术 ,提出了一个采用惟密文数字签名验证的移动代理系统新方案 ,以增强移动代理的安全可靠性 .

Mobile agent systems, which have several advantages and raise the whole networks efficiency by using asynchronous communication mode as software agents, play important roles in distributed computer systems in the future and find wide applications. However, the mobile software agents are vulnerable to attack from malicious programs running on the hosts, and it is the key to the mobile agents' security running to protect them against being tampered by malicious hosts. It is necessary to develop new secure protocols that can be used in mobile agents because the old ones are unsuitable to these environments. Combined with an onion routing scheme, a mobile agent system, by using the cipher text only signature verification, is presented to enhance its security and reliability. Finally, analysis of its security is conducted.