Using interfaces to specify access rights

Mobile agents are usually expected to execute in open environments. This openness implies that they should be able to dynamically learn how to interact with other agents and services which were not known at development time. The interlocutors therefore have to publish enough information about their functionality, while at the same time they have to restrict access rights in order to preserve their integrity. We describe in this paper a messenger-based framework which proposes run-time generated interfaces to address this duality.