Re: Digital Media Equipment Self-Encryption (DMESE)

On 29 May, 00:01, jst...@xxxxxxxxx wrote:
Talk of "managed copy" for DVD's in the news has me talking about an
idea I had back in January for stopping casual copying which is simply
having the equipment encrypt its copies to itself. That is, when you
make a backup copy, say of a DVD, your copy is encrypted by your
machine so no other can read it would a key, which can be passed by a
flash drive so you can use your backup copy with all your own
equipment.

It might also be passed over your network.

To make this idea a complete end to end solution, say, when you buy a
copyable DVD, it might come with a flash drive that would allow you to
use one device to copy it, as it would read the key from the flash
drive which would then be wiped, which would prevent you from just
passing the original bought DVD as a master for others to make copies.

Regardless of various implementations as you could different things to
get various protection schemes as this idea is very flexible, the one
key thing is self-encryption by your digital media as it would encrypt
copies it made to itself.

So all copies would be encrypted with keys that could vary potentially
with every single copy.

The biggest issue for the various industries from the movie to the
music industries getting this idea going would be the need for
manufacturers of the primary devices like DVD and CD drives to make
their drives smarter to implement it, and maybe have them take flash
drives to pass the keys.

Having a hardware solution makes it that much harder for criminal
copyright violation as people would need bootleg non-industry standard
DVD drives to not use DMESE, which themselves could be made illegal as
their primary purpose would be for illegal activity.

I talk more about this idea on my blogs, here's a link to one:

http://lostincomment.blogspot.com/2007/05/what-is-managed-copy.html

I have given the idea away open source.

It is a free idea, though if anyone bothers to use it, they should
cite me as the source of the idea.

James Harris

I have a few questions about your proposal:

Firstly, your proposal would require people who want to make a backup
of a DVD or CD they own to have a DVD or CD player that can accept
flash drives to be able to play those backups. That would mean, for
example, that I couldn't play them on the HiFi on which I spent £500 a
couple of years ago, and would have to buy a new one. I don't think
that consumers would stand for that. Secondly, you talk about CDs or
DVDs coming with flash drives. That would increase the cost of
manufacturing enormously, and the consumer would end up paying for it.
I don't think they would stand for that either.

Also, it seems likely that the encryption built into hardware is
something that could be fixed with firmware. Of course such firmware
would be illegal but in case you haven't noticed policing the software
available on the internet is to all intents and purposes impossible
(how hard is it to download movies for free?).

I imagine your idea, if implemented, would have little effect on the
pirates but a lot on honest customers.

-Rotwang

.

Relevant Pages

  • Re: Digital Media Equipment Self-Encryption (DMESE)
    ... having the equipment encrypt its copies to itself. ... copyable DVD, it might come with a flash drive that would allow you to ... their drives smarter to implement it, and maybe have them take flash ... Casual copying and handing off to friends by the average user would be ...
    (sci.crypt)
  • Re: Digital Media Equipment Self-Encryption (DMESE)
    ... having the equipment encrypt its copies to itself. ... copyable DVD, it might come with a flash drive that would allow you to ... their drives smarter to implement it, and maybe have them take flash ...
    (sci.crypt)
  • Re: Digital Media Equipment Self-Encryption (DMESE)
    ... having the equipment encrypt its copies to itself. ... make a backup copy, say of a DVD, your copy is encrypted by your ... copyable DVD, it might come with a flash drive that would allow you to ... their drives smarter to implement it, and maybe have them take flash ...
    (sci.crypt)
  • Re: Digital Media Equipment Self-Encryption (DMESE)
    ... having the equipment encrypt its copies to itself. ... copyable DVD, it might come with a flash drive that would allow you ... their drives smarter to implement it, and maybe have them take flash ... that is what the dongle already does. ...
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