Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Edward R. Rowe0
Date of Patent
April 15, 2008
Patent Application Number
09973447
Date Filed
October 9, 2001
Patent Citations Received
Patent Primary Examiner
Patent abstract
A document access control scheme uses digital “skeleton keys” to distribute access permissions for encrypted documents in a manner that does not require that rights management files (RMFs) be associated with each document. Multiple skeleton keys can be issued for the same document. The skeleton keys themselves can be opened by one or more other skeleton keys for different levels of document access.
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