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System and method for exchanging encryption keys between a mobile device and a peripheral device

  • US 9,768,955 B2
  • Filed: 08/20/2014
  • Issued: 09/19/2017
  • Est. Priority Date: 05/12/2006
  • Status: Active Grant
First Claim
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1. A method of providing additional security over an established wireless connection between a computing device and a peripheral device, the method comprising:

  • determining that a pairing process between the computing device and the peripheral device is complete;

    automatically, in response to completion of the pairing process, generating an encryption key at the computing device in a binary form;

    at the computing device, applying a conversion algorithm to the encryption key in the binary form to generate a number comprising fewer alphanumeric digits than the encryption key in the binary form, the conversion algorithm being associated with a recovery algorithm, wherein applying of the recovery algorithm to the number generates the encryption key in the binary form;

    at the computing device, displaying the number comprising fewer alphanumeric digits on a display of the computing device, for entry at the peripheral device; and

    at the computing device, encrypting data transmitted to or decrypting data received from the peripheral device over the wireless connection, using the encryption key and in accordance with an encryption algorithm.

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