A secure model for mobile agent based on encrypted circuit construction

Abstract

As a new technology, mobile agent (MA) shows a wide application in the field of network technology. However, security has been one of the crucial problems in its application. A new protection model based on a trusted element is presented in this paper. The trusted element, which differs from the traditional trusted hardware such as a smart card or a co-processor, offers a third party service based on an encrypted circuit construction. The procedure of constructing an encrypted circuit is introduced and the method of using the trusted service to protect the MA is also described. An application example is given to show how to use the new model at the end of the paper.