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Notice of "Found" Patent Claim

From: Joseph Reagle <reagle@w3.org>
Date: Wed, 21 Nov 2001 10:15:47 -0500
To: xenc <xml-encryption@w3.org>
Message-Id: <20011121151548.4812A1041@policy.w3.org>
This email is notice that a Chair of the XML Encryption WG has received a 
pointer to the following patent [1]. I've not communicated with 
representatives of the inventors nor garnered any other information about 
this claim. Since I'm obligated to disclose patents that I'm aware of, I 
need to forward such pointers on though the following, of course, applies:

  The W3C does not take a position regarding (1) the validity or scope of
  any intellectual property right or other rights that might be claimed to
  pertain to the implementation or use of the technology, nor (2) the
  extent to which any license under such rights might or might not be


United States Patent 	5,898,781
Shanton 	April 27, 1999

Distributed cryptographic object method

A system for increasing the security of a computer system, while giving an
individual user a large amount of flexibility and power. To give users the
most power and flexibility, a standard object that has the capability to
embed objects is used. To allow users even more flexibility, a standard
object tracking mechanism is used that allow users to distribute multiple
encrypted embedded objects to other individuals in a single encrypted
object. By effecting compartmentalization of every object by label
attributes and algorithm attributes, multi-level multimedia security is


Joseph Reagle Jr.                 http://www.w3.org/People/Reagle/
W3C Policy Analyst                mailto:reagle@w3.org
IETF/W3C XML-Signature Co-Chair   http://www.w3.org/Signature/
W3C XML Encryption Chair          http://www.w3.org/Encryption/2001/
Received on Wednesday, 21 November 2001 10:15:48 UTC

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