AACS Presentation to CPTWG 090722 Overview
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Advanced Access Content System (AACS) AACS Overview Presentation to CPTWG Presented by Mic hae l Ayers July 22, 2009 AACS Final Licensing - Agenda z AACS LA presented its Interim specifications and licenses to CPTWG in February 2006 – AACS LA remained consistent with our original plan z Current Status z Features of the Final Specifications z Licensing Considerations 22 July, 2009 2 AACS LA Structure Founders - drawn from 3 key industry sectors: content providers, consumer electronics and IT industry z IBM z Intel z Microsoft z Panasonic z Sony z The Walt Disney Company z Toshiba z WBWarner Bros. z Contributors z Input and collaboration with 15 additional companies across principal industries z Licensees z Manufacturers, Content Companies, Resellers, Online Service Providers z Cost Recovery; No paid staff; Outsourced services 22 July, 2009 3 AACS Technology Ob jectives z Create a seamless, robust and interoperable environment for the distribution and use of next-generation digital content z DlDevelop, promo te an dlithlididthd license technologies designed to enhance diitldigital entertainment experiences for consumers z Exciting, flexible new entertainment options for consumers in stand alone, networked home and portable environments z Solution is format-neutral and designed for the next-generation optical media formats, Blu-ray and HD DVD, for use with PCs and other consumer electronics devices z Create opportunities for new business models for content providers, distributors, content aggregators and device manufacturers z Enables e-commerce enhanced content while accelerating the legitimate flow of next generation content, including high definition (HD) content z Gives content providers new distribution management options for consumer-friendly authorized use z Provide a core entity to license the technology z Strong partnership among the IT, Entertainment, and CE industries 22 July, 2009 4 Extended Business Opportunities Local Playback Electronic Distribution wiwithth SecuSecurere Copy DRM Home Media Server Portable Device 22 July, 2009 5 AACS Framework AACS: Advanced, formatformat--neutralneutral protection for next generation audiovisual content for a variety of underlying formats * Legacy Format Advanced Format Standard Def High Definition CSS AACS Other DVD-9 HD DVD Blu-ray Disc formats** *Prerecorded and Recordable ** CBHD added 22 July, 2009 6 AACS Technology Review z Strong cryptography z Advanced Encryption Standard with 128-bit keys z Next-generation media key block z Revocation of compromised devices z Precise – affects only compromised key z Efficient tree-based, broadcast encryption z Enhanced drive authentication z Support for advanced operations such as “move” z Use of network connectivity to enable enhanced uses z New approaches to enhance robustness of implementations z Combination of proactive software renewal with revocation z Audio Watermark 22 July, 2009 7 AACS – Current Status z Hundreds of interim licenses in force z EiEncryption system ibis robust z Key renewal and revocation processes work and are routinely used z Key generation processes have been improved and key order delivery times have dropped z KdfhbKey order fees have been re ddduced as cos thts have been lowered z Developppment of the Final specifications and licenses was more complicated than expected, but are now posted on www.AACSLA.com 22 July, 2009 8 AACS Licensing Status z Interim Licensinggg began on Feb. 17 , 2006 z Final Adopter & Content Participant Agreements published June 5, 2009 z Final Content Provider & Reseller Agrmts. published June 19, 2009 z OOSnline Service Provider Ag reement bein gppg prepared z Transition period – Interim Agreements expire Dec. 4, 2009 z Format Rollout: z Blu-ray – All provisions of the Final Licenses z HD DVD – Final, except MC and WM; Market Monitoring to be done by AACS z CBHD – Interim until December 2010 22 July, 2009 9 Outcomes of the Review Steps z Founders and Contrib u tors prov ided inpu t on the Specs, Licenses and Compliance Rules z Besides new features, the review process yielded improved documents and processes z The improved process areas include: Re-pressing of existing titles Obligations re. Managed Copy Transfer rules for CMF’s Use of Content Certificates Fee Structure Production Reporting Vo lume CP no tifica tion ICT/DOT responsibiliti es BD Live data transfer procedures AACS KGF service levels 22 July, 2009 10 Final Licenses – New Features z Managed Copy z Analog Sunset Dates z Watermark z Slightly modified key embedding and expiration terms detection z Third-Party Product Certification z Digital Only Token enabled z Signed CSS z Watermark z Prepared Video z Content certificate z Class II MKB’s z Revised Fee z Bus Encryption Structure 22 July, 2009 11 Managed Copy z Enables authorized copies and movement of content onto home network and portable devices z Specifications allow first generation (Interim) AACS-protected discs to be Managed Copy-ready z Current authorized Managed Copy output technologies include CPRM, VCPS, WMDRM/PlayReady, MagicGate, AACS for Recordable Media,,p as well as AACS Prepared Video 2. Authorization Request Disk with URL 1. Insert Managed 3. If OK, present offers Copy MdManaged Copy Machine 4. Selected offer and Authorization payment info Service 6. Managed Copy 5. Authorize copy 22 July, 2009 12 Prepared Video z New AACS writable format z Supports preservation of all features of a pre- recorded disc (navigation, etc.) z Disc is ena bldthbled throug h cryp tograp hitkhic token crea tdbted by a Content Owner server z Enables Electronic Sell Through and Manufacturing On Demand models z Can be used as an input and/or output technology for Managed Copies z AACS for Prepared Video supports bit-for-bit HD coppppies, and AACS LA looks forward to BDA support for this functionality 22 July, 2009 13 Audio Watermark z Selected watermark technology is from Verance Corporation – referred to as the Cinavia™ Watermark z Embedded at the discretion of content providers z Final license obligation is on device manufacturers to screen for the watermark z Inaudible signal that a content provider may choose to insert into the audio track of their content z Invisible and inaudible to consumers z TfthtkTwo uses of the watermark z No Home Use – embedded in theatrical releases only z Trusted Source – embedded in AACS-protected optical discs and other trusted content delivery methods to consumers z Licenses and specifications available from Verance Corporation z www.verance.com 22 July, 2009 14 Digital Only Token z Digital Only Token will be utilized only to enable new business models for content offerings z e.g., “Day and date” release of disc and theatrical versions z e.g., HD preview of content before generally available z e.g., screeners and other non-consumer uses z When used, restricts content to digital outputs z If employed, disc required to be clearly labeled to avoid consumer confusion z Encourages industry use of protected digital interconnections and enhanced security 22 July, 2009 15 Image Constraint Token z Apppplicable to analo g out puts z Provides better than current Standard Definition DVD experience for legacy analog devices z Resolution superior to current DVDs, twice the resolution of standard definition z Encouraggppes adoption of protected di gital interconnections z Provides flexible business options for content owners z Obligation to notify consumer when ICT used on disc z Employed at the option of the content owner 22 July, 2009 16 Drive-Host Bus Encryption z Adds a dynamic encryption layer for PC-based players z See Specification Common Book – Chapter 4 z Prevents decryption of content extracted from drive- host interface , even if certain AACS keys are known z Adds second layer of encryption between software host and PC-based drive z Uses dynamic keys z Forces attackers to have a revocable host private key an d cer tifica te in the ir c lien t, ma king identification (and revocation) easier 22 July, 2009 17 Class II Media Key Blocks (MKBs) z Also known as “Unified MKBs” z See Specification Common Book – Chapter 3 z Strengthens ability to respond to clone and anonymous attacks (discovering source of the attack) z Combines benefits of Sequence Keys with modified MKB structure z Offers lower implementation cost over Class I MKBs/SKBs z Class II devices no longer need process SKBs z Backward-compatible with the SKB system 22 July, 2009 18 Analog Sunset z Addresses balance between content protection needs & realistic timeframe for digital output adoption z December 31, 2010 – analog output limited to SD Interlace MdModes on ly (i.e., CitSComposite, S-Video, 480i componen t) z December 31, 2013 – sunset for all analog output z No impact on Licensed Products manufactured prior to sunsets 22 July, 2009 19 Signed CSS z New Signed CSS book defines format for CSS certificates for use with DVD z Allows Content Owners to place AACS Watermarks on content which is only protected with CSS z If an AACS player sees the Trusted Source watermark on an optical disc which does not include the certificate, the player will mute the audio 22 July, 2009 20 Fees z Order process fee reduced for all key order types z Now $500 (50% reduction) z Extensive competitive bid process resulted in movement of key generation facility to a new hosting vendor z Lower fees for content companies z On average at least 25% reduction z New provisions for small content companies z NCttPidNew Content Provider annua lftifl fee option for sma lldtill production consortia z More streamlined payment