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From: "Axel H Horns" <horns@ipjur.com> To: cryptography@wasabisystems.com Date: Thu, 13 Dec 2001 12:41:36 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Message-ID: <3C18A200.16618.11ECC7@localhost> In-reply-to: <E16ENN4-0004sj-00@granger.mail.mindspring.net> On 12 Dec 2001, at 23:16, John Young wrote: > Microsoft's patent for a Digital Rights Management > Operating System was awarded yesterday: > > http://cryptome.org/ms-drm-os.htm > > Abstract More relevant than the abstract: The independent claims of the patent. ------------------------------- CUT ------------------------------- 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. [...] 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 ... Axel H Horns Patentanwalt --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to majordomo@wasabisystems.com
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