Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Craig B. Gentry0
Date of Patent
July 6, 2010
0Patent Application Number
122454720
Date Filed
October 3, 2008
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A digital message can be sent from a sender to a recipient in a public-key based cryptosystem comprising a hierarchy of authorizers. A message recipient can decrypt a message from a message sender only if the recipient possesses up-to-date authority from an authorizer. Other features are also provided.
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