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* [OT] DRM OS
@ 2001-12-13  4:00 James Simmons
  2001-12-13  4:07 ` Matt
                   ` (2 more replies)
  0 siblings, 3 replies; 26+ messages in thread
From: James Simmons @ 2001-12-13  4:00 UTC (permalink / raw)
  To: Linux Kernel Mailing List


Microsoft patents loading a trusted OS into a trusted CPU. The OS prevents
untrusted applications from accessing Rights Managed Data.

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-adv.htm&r=1&f=G&l=50&d=CR99&S1=5,892,900.UREF.&OS=ref/5,892,900&RS=REF/5,892,900

  .-.                               .-.
  oo|  Give Microsoft The Bird!!!!  oo|
 /`'\  Use Linux!!!                /`'\
(_;/)                            (_;/)
-----------------------------------------------------


^ permalink raw reply	[flat|nested] 26+ messages in thread
* Re: [OT] DRM OS
@ 2001-12-13 14:21 Thomas Hood
  0 siblings, 0 replies; 26+ messages in thread
From: Thomas Hood @ 2001-12-13 14:21 UTC (permalink / raw)
  To: linux-kernel

Rik van Riel wrote:
> Then again, this only applies to people unlucky enough to live
> in the US. No need to worry.

Naïve.


^ permalink raw reply	[flat|nested] 26+ messages in thread
* Re: [OT] DRM OS
@ 2001-12-13 15:33 Jesse Pollard
  0 siblings, 0 replies; 26+ messages in thread
From: Jesse Pollard @ 2001-12-13 15:33 UTC (permalink / raw)
  To: riel, James Simmons; +Cc: Linux Kernel Mailing List

Rik van Riel <riel@conectiva.com.br>:
> 
> On Wed, 12 Dec 2001, James Simmons wrote:
> 
> > Microsoft patents loading a trusted OS into a trusted CPU. The OS prevents
> > untrusted applications from accessing Rights Managed Data.
> 
> I haven't looked up the link, but this sounds suspiciously like
> what UNIX permission bits have been doing since the 1970s.
> 
> I guess MS trying to enforce their patent against anyone would
> just get it invalidated, or the claim is narrow enough that
> people can work around it.
> 
> > http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-adv.htm&r=1&f=G&l=50&d=CR99&S1=5,892,900.UREF.&OS=ref/5,892,900&RS=REF/5,892,900
> 
> Then again, this only applies to people unlucky enough to live
> in the US. No need to worry.

Besides, there are several technical flaws in the patent itself. First
and formost is that it isn't new (check the Orange book on trusted computer
systems and object reuse). It doesn't include the memory controled by
peripherals - graphics frame buffers and device cache buffers - (the TSEC
object reuse specifications do).

It doesn't even include controlling access to the "trusted OS".

If it did, then owners/users would no longer be able to apply any of the
hundreds of patches such a system (if from M$) would require...:-)

Never mind having access to a "trusted time server" by a disconnected laptop.

Or defining what happens under a power failure...

I wouldn't expect this to last even a first challenge, as long as the
governments own documents were presented as "prior art".

-------------------------------------------------------------------------
Jesse I Pollard, II
Email: pollard@navo.hpc.mil

Any opinions expressed are solely my own.

^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2002-01-03 11:11 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2001-12-13  4:00 [OT] DRM OS James Simmons
2001-12-13  4:07 ` Matt
2001-12-13 13:38 ` Rik van Riel
2001-12-14  9:15 ` Andre Hedrick
2001-12-15  0:32   ` Aaron Lehmann
2001-12-17  6:10     ` TimO
2001-12-18 16:17     ` Alan Cox
2001-12-18 18:54       ` James Simmons
2001-12-18 19:06         ` Andre Hedrick
2001-12-18 19:53       ` Aaron Lehmann
2001-12-18 20:05         ` Dave Jones
2001-12-18 20:10           ` Aaron Lehmann
2001-12-18 20:25             ` Dave Jones
2001-12-18 20:45               ` H. Peter Anvin
2001-12-19 10:39               ` Helge Hafting
2001-12-18 20:44             ` Rik van Riel
2001-12-18 20:56               ` Gábor Lénárt
2001-12-19 21:49                 ` Thomas Dodd
2001-12-20 22:40             ` Marco Ermini
2001-12-21 16:38               ` Brendan Pike
2002-01-02 22:13     ` Chris Friesen
2002-01-02 22:30       ` Alan Cox
2002-01-03  1:52       ` Andre Hedrick
2002-01-03 11:10         ` Henning P. Schmiedehausen
2001-12-13 14:21 Thomas Hood
2001-12-13 15:33 Jesse Pollard

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