Trust and Security for Spatial Messaging

Spatial messaging is a term that defines the virtual publication of data in physical places. Anyone in the neighborhood of such a publication point gets the message. Architectures allowing users to publish freely spatial messages already exist. However, experiences realized with volunteers showed that there is only little interest in posting such notes. To our view, the main reason is that there is currently no trust mechanism which informs about the reliability of the messages, thus preventing any serious application. Filling this gap will promote the success of spatial messaging, and the growing success of localization and mobile techniques will provide a good support for this concept. After a general presentation conducted by hypothetical scenarios to show the potential impact of spatial messaging, we will discuss how to build a trust model, and propose a first move to a concrete architecture.