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United States Patent6948070
Ginter , ; et al.September 20, 2005
Title
Systems and methods for secure transaction management and electronic rights protection
Abstract
The present invention provides systems and methods for secure transaction management and electronic rights protection. Electronic appliances such as computers equipped in accordance with the present invention help to ensure that information is accessed and used only in authorized ways, and maintain the integrity, availability, and/or confidentiality of the information. Such electronic appliances provide a distributed virtual distribution environment (VDE) that may enforce a secure chain of handling and control, for example, to control and/or meter or otherwise monitor use of electronically stored or disseminated information. Such a virtual distribution environment may be used to protect rights of various participants in electronic commerce and other electronic or electronic-facilitated transactions. Distributed and other operating systems, environments and architectures, such as, for example, those using tamper-resistant hardware-based processors, may establish security at each node. These techniques may be used to support an all-electronic information distribution, for example, utilizing the "electronic highway."
Inventors:Ginter; Karl L. (Beltsville, MD), Shear; Victor H.  (Bethesda, MD), Spahn; Francis J.  (El Cerrito, CA), Van Wie; David M.  (Sunnyvale, CA)
Assignee:Intertrust Technologies Corporation (Sunnyvale, CA)
Appl. No.:698044
Filed:October 30, 2000
Current U.S. Class:713/193 713/194 380/201 380/202 380/203 380/231 380/232 380/233 705/51 705/52 705/53 705/57 705/58 705/59 
Field of Search:713/193,194,201,202 380/201,202,203,231,232,233 705/51,52,53,57,58,59 386/94 700/231,234
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