关键词: 数字签名 移动代理 密码学 身份认证 混合加密

Abstract:

The three factors that influence the popularization of mobile agent systems is security, efficiency and standard, and the mainly factor is security. The security of mobile agent systems lies in the protection of confidential data, the verification of mobile agents and mobile agent platforms. At presen  t, many mobile agent security techniques cannot afford a complete security. The author, in this paper, based on verifying mobile agent codes under open 
circumstances, introduces a new model about the security of mobile agents and mobile agent platforms. By this model, mobile agent systems can avoid all   unknown attacks, and it is a simple one that makes it easy-to-implement. Security analysis and attack test show it is reliable.

Key words: （digital signature, mobile agent, encryption, authentication, hybrid encryption）