Re: MS Patent for DRM OS [US-A-6,330,670]

[PILCH Hartmut <phm@a2e.de>]

> 1. A computerized method for a digital rights management operating
> system comprising:
>
> assuming a trusted identity;
>
> executing a trusted application;
>
> loading rights-managed data into memory for access by the trusted
> application; and
>
> protecting the rights-managed data from access by an untrusted
> program while the trusted application is executing.
>
> [...]

Was wurde hier ausgelassen?
Nur folgende abhaengige Ansprueche oder weiter eingrenzende Merkmale des
unabhaengigen Anspruchs?
Unten ebenfalls?

> 17. A computer system comprising:
>
> a processing unit;
>
> a system memory coupled to the processing unit through a system bus;
>
> a computer-readable medium coupled to the processing unit through a
> system bus; and
>
> a digital rights management operating system executed from the
> computer-readable medium by the processing unit, wherein the digital
> rights management operating system causes the processor to create a
> trusted identity for the digital rights management operating system.
>
> [...]
>
> 22. A computer-readable medium having computer-executable
> instructions for a digital rights management operating system stored
> thereon comprising:
>
> obtaining, from a computer processor, a first value for a monotonic
> counter;
>
> presenting, to a trusted time server, the first value for the
> monotonic counter;
>
> receiving, from the trusted time server, a certificate binding the
> first value of the monotonic counter to a time on the trusted time
> server;
>
> obtaining, from the processor, a second value for the monotonic
> counter before loading a trusted component;
>
> calculating, using the certificate and the second value, a trusted
> current time;
>
> comparing a time stamp on a trusted component with the trusted
> current time; and
>
> determining whether to load the trusted component based on the
> comparison.
>
> [...]
>
> ------------------------------- CUT -------------------------------
>
> Hmmmm.... havn't checked that yet but I can hardly believe that those
> subject-matters as granted by USPTO *really* were novel and inventive
> on January 08, 1999 ...
>
> --AHH
>
>
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