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DATA INTEGRITY FOR PROXIMITY-BASED COMMUNICATION

  • US 20140141750A1
  • Filed: 07/11/2011
  • Published: 05/22/2014
  • Est. Priority Date: 07/11/2011
  • Status: Active Grant
First Claim
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1. A method for trusted communication among mobile devices, the method comprising:

  • wirelessly transmitting information from a first mobile device to a second mobile device permitting the second mobile device to detect proximity of the first mobile device;

    receiving, at the first mobile device, a message and a first authentication value wirelessly transmitted from the second mobile device directly to the first mobile device in response to the information;

    accessing a shared secret value stored at the first mobile device and associated with the second mobile device;

    generating a second authentication value at the first mobile device based on the message and the shared secret value; and

    verifying integrity of the message based on comparing the first authentication value and the second authentication value.

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