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Controlling access to protected objects

  • US 10,333,711 B2
  • Filed: 06/17/2011
  • Issued: 06/25/2019
  • Est. Priority Date: 06/17/2011
  • Status: Active Grant
First Claim
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1. A method of regulating access, by a server having a processor and a key store that stores a key, to an object encrypted with the key and stored on a device operated by a user, the method comprising:

  • executing, on the processor, instructions that cause the server to;

    receive a request of a user to establish an assignment, to a particular device of a user, of an access privilege authorizing the particular device to access the object;

    store a record of the assignment of the access privilege to the particular device of the user of the access privilege to access the object;

    receive a request from the particular device to access the key;

    verify that the access privilege requested by the user authorizes the particular device to access the object; and

    responsive to verifying the access privilege;

    generate a ticket granting access to the key and indicating the access privilege assigned to the particular device for access to the object, andsend the ticket to the particular device; and

    responsive to receiving the ticket from the particular device;

    verify the ticket, andresponsive to verifying the ticket, send the key to the particular device.

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