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Using an indirect event service instead of other traditional communication models has an advantage of decreasing the coupling of applications in a distributed environment and removing the need for many static dependencies. In this paper, we design and implement the secure event service for providing a secure ubiquitous computing environment. The Secure Event Service implemented in this paper enables users to perform content‐based event retrieval, and supports only eligible event consumer and event producer to publish and receive events through the secure event service. The SPKI/SDSI certificate is used for supporting authentication and authorization in the secure event service. In order to provide content‐based event retrieval, an asynchronous communication between event producers and consumers, and a disconnectedness support for mobile devices, we modify and expand the JavaSpace package. |
