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US Patent 12021984 Content management systems and methods using proxy reencryption

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Contents

Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
120219841
Patent Inventor Names
David P. Maher1
Vanishree Rao1
Robert Tarjan1
Date of Patent
June 25, 2024
1
Patent Application Number
178292411
Date Filed
May 31, 2022
1
Patent Citations
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US Patent 7792300 Method and apparatus for re-encrypting data in a transaction-based secure storage system
1
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US Patent 8855317 System for protecting an encrypted information unit
1
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US Patent 8954740 Session key proxy decryption method to secure content in a one-to-many relationship
1
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US Patent 9094191 Master key encryption functions for transmitter-receiver pairing as a countermeasure to thwart key recovery attacks
1
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US Patent 9374373 Encryption techniques for improved sharing and distribution of encrypted content
1
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US Patent 9806887 Authenticating nonces prior to encrypting and decrypting cryptographic keys
1
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US Patent 10007615 Methods and apparatus for performing fast caching
1
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US Patent 10277563 Computer-implemented system and method for protecting sensitive data via data re-encryption
1
...
Patent Primary Examiner
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David Garcia Cervetti
1
CPC Code
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H04L 2209/603
1
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H04L 2209/76
1
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H04L 9/14
1
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H04L 2209/16
1
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H04L 9/0618
1
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H04L 9/30
1
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H04L 9/0825
1
Patent abstract

This disclosure relates to systems and methods for managing protected electronic content using proxy reencryption techniques. Rights management architectures are described that may, among other things, provide end-to-end protection of content keys from their point of origination at a content creator and/or content service to end user devices. Proxy reencryption techniques consistent with aspects of the disclosed embodiments may enable transformation of a ciphertext under one public key to a ciphertext containing the same plaintext under another public key. Consistent with embodiments disclosed herein, proxy reencryption processes may be implemented using indistinguishability obfuscation and puncturable public-key encryption schemes, functional encryption, and/or white box obfuscation techniques.

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