HDCP (High-bandwidth Digital Content Protection) allegedly broken. Someone has apparently released a method of generating the master key that is used to create the keys generated for manufacturers of such things as HDCP compliant Blu-Ray players and TVs. If true this would supposedly be impossible to fix ("they" can revoke regular keys but not the master key without breaking all existing equipment.) A slashdot commenter points to this cryptome message from 2001 outlining this crack in theory. Not sure why it took this long for someone to do it (well, it might be hard I guess, but it doesn't really sound like it.) Will be interesting to see if this is true. Sure sounds like it is.
Yup. "Intel has confirmed that the leaked HDCP master key protecting millions of Blu-ray discs and devices that was posted to the Web this week is legitimate. The disclosure means, in effect, that all Blu-ray discs can now be unlocked and copied."
Copied, but not cloned, unless I'm missing something -- so a generational loss in compression. But blu-rays are generally very, very clean, meaning minimal concatenated coding issues. /video geek
"We have released an open-source (BSD licensed) implementation of the HDCP encryption/decryption algorithms. The code includes the block cipher, stream cipher, and hashing algorithms necessary to perform an HDCP handshake and to encrypt or decrypt video...."
|
- jim 9-14-2010 3:17 pm
Yup. "Intel has confirmed that the leaked HDCP master key protecting millions of Blu-ray discs and devices that was posted to the Web this week is legitimate. The disclosure means, in effect, that all Blu-ray discs can now be unlocked and copied."
- jim 9-17-2010 2:18 pm
Copied, but not cloned, unless I'm missing something -- so a generational loss in compression. But blu-rays are generally very, very clean, meaning minimal concatenated coding issues. /video geek
- mark 9-20-2010 9:44 pm
"We have released an open-source (BSD licensed) implementation of the HDCP encryption/decryption algorithms. The code includes the block cipher, stream cipher, and hashing algorithms necessary to perform an HDCP handshake and to encrypt or decrypt video...."
- jim 9-29-2010 3:10 pm