Electronic commerce has pushed and benefitted from the development of mobile agents technology. One of the reasons is electronic commerce needs remote searching and negotiating between one customer and a number of E-shops. Mobile agents can travel over the Intranet or Internet. Therefore, mobile agents can help the customer or E-shops with remote searching and negotiating. However, because of the heterogeneousness of the networks the mobile agents migrate to, security issues should be tackled

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... th cautions. This paper presents a new secure electronic commerce protocol. The underlying transactions are accomplished with mobile agents. A trusted third party (in fact, a trusted authority) is involved in the protocol.