On 2/20/07, James Richard Tyrer <[EMAIL PROTECTED]> wrote:
Simon wrote:
> There's no way they'll give OGP a license.  The only way to make the
> system even somewhat hard to crack is to have closed source drivers
> for the hardware, so that nobody can make an alternative driver that
> outputs video in the clear.

This is an interesting theory.  However, as I read the license
requirements, such a system would not pass the test for robustness.

My point is that as a prerequisite to meeting the requirements, the
drivers and hardware would presumably have to be closed.  I didn't
mean that being closed would be enough, in itself, just that open
hardware would certainly not be able to meet their requirements as I
understand them.

Apparently Wikipedia mentions the sale of devices that transparently
crack HDCP, and cites a paper from 2001 that concludes that it is
fully crackable.  This would imply that those who really want to solve
this problem can work around it with external hardware, though it
would be weird, using external hardware to negotiate an encrypted link
between the graphics card and the monitor.  I really don't think
display manufacturers would collectively choose to not manufacture any
displays capable of displaying high res digital input without HDCP.
Like I said, if it does happen, it's too sneaky not to end up in
court, so it's not really OGP's problem, specifically.
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