I would like to use the keywords from a specific category as a filter in an authorisation scheme. The web application will give me an array of "claims" that can be matched to keywords out of the category, and the published items will be tagged with keywords representing the claims that are necessary to allow them to be viewed. If an item is not tagged with any keywords out of the category, then it should be visible to all visitors.
How would I construct a broker querying "criteria" to represent this. In other words:
Return the items that have any of these keywords, or none
The point being that if any claim is required, you must be able to match it.
I don't want to have a keyword that represents "Everyone".