DocCloak for Groups is a browser add-on which allows small groups to encrypt and distribute Google Docs, Microsoft Live Office and Zoho Office documents.
DocCloak for Groups allows users to distribute public-key encrypted documents with an unlimited number of other users.
DocCloak for Groups uses an easy-to-use desktop-based key management system that keeps track of who has access to every document being shared. This simple access control method is ideal for small groups of users who need to share documents quickly, easily and securely.