Abstract:Abstract. In pervasive computing environments, information gateways derive specific information, such as a person's location, from raw data provided by a service, such as a videostream offered by a camera. Here, access control to confidential raw data provided by a service becomes difficult when a client does not have access rights to this data. For example, a client might have access to a person's location information, but not to the videostream from which a gateway derives this information. Simply granting a… Show more
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