logoalt Hacker News

jancitoday at 5:07 AM2 repliesview on HN

How was CSS supposed to protect against copying the encrypted data? We should not need to decrypt the video to duplicate the disc.


Replies

wmftoday at 5:12 AM

Keys were stored on an area of the disc that wasn't writable on DVD-Rs so you couldn't copy the whole disc.

show 1 reply
dddgghhbbfblktoday at 6:09 AM

It's implemented in drive firmware, so the drive will refuse to read protected sectors without authentication.

show 1 reply