1. Open Source DRM Project What is the project goal? –Design and Develop a Digital Rights Exchange And Management System for someone who want to publish his works people who want to exchange digital goods each other –We do not make a system to compete with the existing DRM systems, we do make a system for open and free use. Where is our user? –Libraries –Small publisher –Personal publisher –Personal user

2. Open Source DRM Project What features do we provide? –Easy to Search –Easy to Publish –Easy to Exchange –Easy to Download

3. Open Source DRM Project Project Name: OpenDreams System Component: –Content Management –Rights Management –Transaction Management –Payment –P2P Platform with rights enforcement

4. Architecture Idea P2P Interface JXTAGnutellaeDonkeyother P2P Wrapper SearchExchangePublishDownload Application Content Management Right Management Payment Management …

5. Rights Enforcement Digital Content L1L1 L2L2 LnLn Encrypted Content Encrypted Content: Free to Distribute, relatively large. License 1…n: Access Controlled, relatively small, XrML. Encrypted Content LjLj Wrapper PDF Decrypt MS MediaOffice… Common restrictions Specific restrictions KeyXrML Rights

6. Project: OpenDreamMembers: skhuang, l6t, wnhungSince: Dec., 2003Date: Last Date: Open Dreams Project Features A client application (GUI) A client application which has p2p network capability and has the following features. 2003-12-16 UsageTechnologyDescription PublishContent Encoding, Rights Generation Publisher Content Rights User Licenses Search/Downl oad Content P2P Network User P2P Network Content License Content Get licenseInternet, P2P Network Content Publisher License user Exchange Rights Fair Exchange P2P Network User client application License Accounting Play/ReadPlayer Integration (MS Media, Acrobat, … ), Win32 API Wrapping, Rights Enforcement Wrapper Player MS Media Acrobat Player License 2004-02-20

7. Project: OpenDreamMembers: skhuang, l6t, wnhungSince: Dec., 2003Date: Last Date: 2004-01-30 Media wrapper Rights (XrML) 1. Intercept send (challenge msg) 2. Generate License a. retrieve info from challenge b. get rights from incoming rights c. generate license according a and b 3. Intercept WSARecv (return response) 4. Intercept RegQueryExA a. info, cert1, cert2 Other restriction

8. Project: OpenDreamMembers: skhuang, l6t, wnhungSince: Dec., 2003Date: Last Date: COTS DRM WRAPPER PROXY CONTENT P2P HTTP License Provider Server Client