Data Privacy in the Hands of Users

Another privacy play of interest, have been exploring the intricacies and implications of several recently.   Here adding metadata tags that indicate allowed uses and compliance rules.

Putting Data Privacy in the Hands of Users
MIT News
By Rob Matheson

Researchers at the Massachusetts Institute of Technology and Harvard University have developed a platform to ensure Web services comply with users' explicit preferences for retaining and sharing their data in the cloud. Riverbed is engineered so a Web browser or smartphone app communicates with the cloud using a proxy, which operates on a user's device. When the service attempts to upload user data to a remote service, the proxy tags the data with a set of permissible uses for their data, or "policies." Users can choose any number of predefined restrictions, and the proxy tags all data with the preferred policies. In the data center, Riverbed assigns the uploaded data to a partitioned cluster of software components, with each cluster processing only data tagged with the same policies; Riverbed also tracks the server-side code so it adheres to user policies, and terminates service if compliance is not met. ....  "