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UNIFORM COMMUNICATION PROTOCOLS FOR COMMUNICATION BETWEEN CONTROLLERS AND ACCESSORIES

  • US 20150222517A1
  • Filed: 02/05/2015
  • Published: 08/06/2015
  • Est. Priority Date: 02/05/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • detecting, by a controller, an accessory that is available for pairing;

    performing, by the controller, a pair setup operation to establish a pairing with the accessory, the pair setup operation including;

    establishing a shared secret using an out-of-band information item exchanged between the accessory and the controller;

    using the shared secret to securely exchange a long-term public key of the accessory and a long-term public key of the controller; and

    securely and persistently storing, by the controller, the long-term public key of the accessory in association with an identifier of the accessory;

    obtaining, by the controller, an accessory definition record from the paired accessory, the accessory definition record including a set of services, each service having a set of characteristics, each characteristic representing an aspect of accessory state; and

    communicating, by the controller, a request to the paired accessory to modify one or more of the characteristics specified in the accessory definition record, the request being interpretable by the paired accessory as an instruction invoke an operation of the paired accessory.

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