Enhancing Privacy Through Selective Disclosure of Verifiable Content or The Facts, The Whole Facts, And Nothing But The Facts

This paper addresses the issue of selective disclosure of verifiable content. It extends previous work relating to Content Extraction Signatures (CES) to implement a more complex structure that encodes a richer, more flexible fragment extraction policy. The new structure enables the signer to specify primary and secondary fragment extraction targets;and mandatory and optional fragment associations (or groupings) relative to the target fragments. We also propose a novel application to handle and manage electronic document content for paperless commerce in an online and mobile world.