1. Content Protection Platform Shih-Kun Huang Chung-Po Lin Wei-Nan Hung Institute of Information Science Academia Sinica

2. Outline Motivation System Architecture XrML Integration Conclusions

3. Protecting Digital Content Database Protection Media Data Digital Archive Electronic Official Document Electronic Book

4. Motivation Easy to duplicate digital content Inflexible to describe digital content transaction Hard to trace and judge Ownership Digital Content Transaction Security

5. Related Platforms E-book : –Neovue– e-Book content management platform, digital rights management and e- Book reader –CWave -- e-Book authoring tool, rights management, reader –Microsoft -- Reader –Adobe -- Reader ， e-Book reader

6. Related Platforms Multimedia : –hichannel –Aboutmedia (Microsoft media DRM) –RealPlayer –Apple QuickTime Player

7. Comparisons of Content Protection Platform FirmextuserProtection techPC reader MS.lit Banes & Novel MSN ReciprocalMS Reader Adobe.fdfGlass BookReciprocal Acrobat 4.05 Cwave.ark IS.Net HiNet SeedNet Netvigator Cwave Noah's Reader Neovue.nvxBooklandNeovueNeovueReader

8. Roles in a Protection Platform Content Provider Authentication Center Content Publisher Digital Rights Management Center Content User

9. Content Provider Content Publisher Content User Content User Content Provider Authoring content

10. Content Provider Content Publisher Content User Content User Content Publisher Adding digital content protection policy and watermark

11. Content Provider Content User Content User Or adding digital content protection policy and watermark by Content Provider

12. Content Provider Content Publisher Content User Rights Center Rights Center Central Rights Server Content Provider Set Digital rights and Send back to Rights Center

13. Content Provider Content Publisher Content User Rights Center Content Publisher Obtain digital rights

14. Content Provider Content Publisher Content User Rights Center Content Publisher modify current rights and send back to Rights Center

15. Content Provider Content Publisher Content User Rights Center Separation of Digital Content And Digital Rights Content User by using Reader to obtain rights for reading

16. Content Provider Content Publisher Content User Rights Center Content User by using Reader to get content

17. Content Protection Process Digital Content Add watermark Rights Configure Add fingerprinting Encrypt content Database

18. Reader Transaction Process Author User Upload GUI Rights setup GUI Login GUI Content DB Rights DB 1 2 3 4 DRM platform Reader

19. Rights Client Reader check 1.Signature 2.rights Content DB Error Message 1 2 4 No

20. XrML A Rights Description Language 1996 Xerox PARC DPRL(Digital Property Rights Language) Extensible, Generic and Concise

21. XrML 2002/07/01

22. System Features Flexible XrML rights description image-based watermark to embed ownership information Message-based watermark to embed user fingerprint for traceback XrML reader

23. Conclusions Standalone Authentication Center,Rights Center,Content Provider Digital Content Transaction Platform Digital License and Payment