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Establishing trust between two devices

  • US 10,362,031 B2
  • Filed: 06/21/2017
  • Issued: 07/23/2019
  • Est. Priority Date: 09/17/2014
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a processing system comprising;

    one or more processors; and

    memory coupled to the one or more processors, the processing system configured to;

    maintain a list of devices known to be trusted within a same domain, wherein the domain comprises one or more networks operated by an entity and devices on the list of devices are approved for automatic pairing by the entity;

    issue a hash function and a hash seed to a first device included in the list of devices, the hash seed and the hash function usable to generate a hash chain that includes multiple versions;

    receive, from a second device included in the list of devices, a request to connect to the first device;

    determine a current version of the multiple versions of the hash chain that is being used by the first device to determine a media access control (MAC) address; and

    send, to the second device and based on the inclusion of the second device in the list of devices, the hash function, the hash seed and the current version thereby enabling the second device to determine the MAC address and to securely connect to the first device using the MAC address without the MAC address being broadcast.

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