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Protecting Publicly Released Videos Ensuring Proper Rights Management in the Digital Entertainment Era

Protecting Publicly Released Videos Ensuring Proper Rights Management in the Digital Entertainment Era. CPTWG, July 2002 By: Eric Grab ( egrab@divxnetworks.com ) Director of Engineering http://www.divxnetworks.com and http://www.divx.com. Who is DivXNetworks, Inc?.

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Protecting Publicly Released Videos Ensuring Proper Rights Management in the Digital Entertainment Era

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  1. Protecting Publicly Released VideosEnsuring Proper Rights Management in the Digital Entertainment Era CPTWG, July 2002 By: Eric Grab (egrab@divxnetworks.com) Director of Engineering http://www.divxnetworks.com and http://www.divx.com

  2. Who is DivXNetworks, Inc? • The DivXNetworks Codecs were written from scratch by DivXNetworks. The DivX™ Codec 5.x is MPEG-4 Advanced Simple Profile compliant. • Starting with the most widely used MPEG-4 Codec (60 million downloads), named the DivX™ Codec, DivXNetworks added software to enable a fully secure video-on-demand system. The DivX™ Open Video System is hosted in a redundant, high bandwidth facility. This system allows full screen DVD-like quality video (~700kbps) to be rented and delivered across the Internet. It is currently in operation with 15 content providers. • DivXNetworks offers a video-on-demand service, and licenses all aspects of its software technology to companies to a variety of industries including content providers, network operators, enterprise market, and entertainment.

  3. What are we going to cover? • We made a VOD solution, so what did we learn? • Where do videos get attacked? • What is a reasonable approach to video considering the the current state of technology? • How should we treat content?

  4. Where do the attacks happen? • A couple things to remember… • Video always has to reach your eyes and ears, thus it always becomes unprotected at some point. • Principle of easiest penetration: An intruder must be expected to use any available means of penetration. This will not necessarily be the most obvious means, nor will it necessarily be the one against which the most solid defense has been installed. • See the Reality to Reality Reproduction diagram on the next slide.

  5. From Reality to Reality Reproduction

  6. What is a reasonable technical approach to protect digital video right now? • Encrypt the video. Use high speed decryption and allow trick play. • Content watermark to find illegal distributed content. • Transaction watermark to find and prosecute attackers. • Software based solution for rapid response, such as encryption rotation, protocol rotation, and tamper resistance improvements. • Networks are everywhere so use server side business rules and key management to improve security and stay flexible. In other words, network authentication is required to start playing video. Think banking transaction. • Check geographic region via IP address, and enforce it as part of the business rules. • Associate content to users (username and password), not devices. • Add tamper resistance to software to reduce common software attacks. • Monitor “channels” with content mark or image recognition, or even works pretty well using title.

  7. How do we treat entertainment industry content? • Digital technology enabled new things for the financial industry years ago. • The entertainment industry is going through the same thing. • Assertion: Handling content is very similar to handling money. Thus we can learn quite a bit about how to protect things from the financial industry. • Financial industry expanded from coins and paper. • Consumer move money and shares move fluidly giving them great control via wire transfers, ATMs, credit cards, web stock trading, etc. • Many technologies combined with operational process make it work. • Entertainment industry will expand from film and discs. • Consumers will have great control over selecting content. • Many technologies combined with operational process will make it work.

  8. Does technology solve all the problems? • It is not just about technology, there are other aspects. • Psychology – Do not restrict things too far as to create the perceived need to crack, or wait too long for a solution. Overall make it easier to buy than to steal. • Legal – Dedication to follow through and have the right evidence. • Business – Take the time to train users and dealmakers on the value of new video services. • Operational / Rapid Response – Put the procedures in place to respond to threats and protect critical aspects. Give the system checks and balances. Keep adding more technology.

  9. Are there any questions? • egrab@divxnetworks.com • http://www.DivXNetworks.com • http://www.DivX.com • April 2002 SMPTE Journal

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