关键词: 移动Agent, 服务, 复合, 数字签名

Abstract: An identity-based security scheme with provable security was proposed for composition of services based on mobile agents. The scheme was constructed on bilinear pairings and the security of digital signature in this scheme relied on the difficulty of solving Gap Diffle-Hellman problems. In this scheme, there was no requirement for mobile agent to carry the private key when they generated digital signatures on behalf of the original service so that the private key would not be compromised. In addition, the integrity of service parameter information with mobile agent was also protected by this scheme. At the same time, the verification of signatures generated by mobile agents and the integrity of service parameters need not to communicate with Certificate Authority(CA) or Key Distribution Center(KDC) because the scheme was identity-based.

Key words: mobile agent, services, composition, digital signature