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Chapter 20
A Cloud-Based Policy
Manager for Assured
Information Sharing
20.1 Overview
In the previous chapters we discussed a system for access control for provenance
data and inference control. In this chapter we describe our implementation of our
Semantic Web-based policy manager in the cloud. is policy layer is essentially a
variation of the policy engines we described in Sections II and III. However, while
the policy engines described in Sections II and III addressed access control, redac-
tion, and inference control, the policy engine described in this chapter handles
information sharing policies. e purpose of this cloud-based system ...