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Methods and systems for conveying encrypted data to a communication device

  • US 9,891,882 B2
  • Filed: 06/01/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 06/01/2015
  • Status: Active Grant
First Claim
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1. A smartphone case comprising:

  • a smartphone-microphone inhibitor;

    a communication interface comprising a plug of a particular type; and

    a secure communication interface comprising;

    a secure-interface microphone configured to detect ambient sound; and

    a cryptographic module configured to generate encrypted audio data by encrypting audio data that is representative of ambient sound detected via the secure-interface microphone,wherein, when the smartphone case is disposed on a smartphone that has (i) a smartphone microphone and (ii) a wired-communication receptacle of the particular type;

    the smartphone-microphone inhibitor of the smartphone case is positioned and configured to inhibit detection of ambient sound by the smartphone microphone of the smartphone; and

    the plug of the smartphone case engages with the wired-communication receptacle of the smartphone such that the communication interface of the smartphone case is thereby configured to locally relay the encrypted audio data between the smartphone and the secure communication interface.

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