DVD Content Scramble System (CSS)
- The DVD Copy Control Association manages CSS. It grants licenses to use the technology and provides the necessary technical support.
- Mark Barry at UCSD has posted an introduction to DVD CSS.
- Another introduction by DVD software vendor Digiarty.
- A detailed discussion of the crypto mechanisms by Gregory Kesden at CMU.
The video uses simple examples of key wrapping. Crypto researchers have developed more sophisticated key wrapping techniques with improved theoretical security properties. For an example, see AES key wrapping recommendations developed by NIST.
Shows how key wrapping allows controlled sharing of DVD crypto keys.
Video notes: cys.me/vid/c07
Video #8 shows how a DVD player unwraps keys to play video: vimeo.com/200426236
The previous video describes flaws in the DVD crypto scheme vimeo.com/199858435
See the entire Cryptosmith series in its album vimeo.com/album/4229550