- From: Karl Dubost <karl@la-grange.net>
- Date: Thu, 6 Jun 2013 15:45:01 +0900
- To: Jeff Jaffe <jeff@w3.org>
- Cc: Mark Watson <watsonm@netflix.com>, Gervase Markham <gerv@mozilla.org>, "public-restrictedmedia@w3.org" <public-restrictedmedia@w3.org>
Le 6 juin 2013 à 14:27, Jeff Jaffe a écrit : > An open source CDM system would be breakable. If one defines "usefulness" to be "unbreakable" then you could not have a useful open source CDM system. Although many argue that even closed CDMs are breakable, so breakability might not be a distinction between open and closed CDMs. Just a slight reminder that the easiest way of "breaking a DRM" is to capture the video and audio signal once it is displayed on a screen. There are many ways of doing that without even attempting to unencrypt the data. A camera in front of the computer screen at *home* being one way. It's why the argument of DRM online doesn't hold water at all. Sincerely a water mark with a unique id would be more useful than anything else if the purpose was against piracy. What "prevents" piracy in cinema is the surveillance and social peer to peer pressure. That's all. That doesn't stop people to make copy of movies. Not all torrents are DVDRIP. The DRM scheme is not about protecting content, it is about changing the business model. -- Karl Dubost http://www.la-grange.net/karl/
Received on Thursday, 6 June 2013 06:45:22 UTC