Sureshot324
5th January 2007, 19:37
The way I understand it, the content is encrypted, and the decryption takes place in the monitor/TV. So if you were to play an HD-DVD in a computer, the computer would read the encrypted content from the disk, send it to the monitor still encrypted, and the monitor would decrypt it and display it.
However, as far as I can tell, this would mean there would have to be only ONE encryption key for all HD content. There could not be a different encryption key for every HD-DVD, because then the computer would have to either read the key from the disk or get it from the internet, which would mean a software program could get the key and decrypt the content in software, rendering the DRM useless.
However, if there's only ONE encryption key and that key is stored in every computer monitor and TV in the world, it's only a matter of time before that key is public knowledge, again rendering the DRM useless.
Can someone please explain to me what I'm missing?
However, as far as I can tell, this would mean there would have to be only ONE encryption key for all HD content. There could not be a different encryption key for every HD-DVD, because then the computer would have to either read the key from the disk or get it from the internet, which would mean a software program could get the key and decrypt the content in software, rendering the DRM useless.
However, if there's only ONE encryption key and that key is stored in every computer monitor and TV in the world, it's only a matter of time before that key is public knowledge, again rendering the DRM useless.
Can someone please explain to me what I'm missing?