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SECURE DELIVERY OF FILES TO AUTHORIZED RECIPIENTS

  • US 20150304285A1
  • Filed: 05/21/2015
  • Published: 10/22/2015
  • Est. Priority Date: 07/27/2005
  • Status: Active Grant
First Claim
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1. A method for decoding an encrypted file, said method comprising:

  • receiving, by a recipient computer of a recipient from a sender computer of a sender, the encrypted file, wherein the encrypted file has a filename that includes an encoded address in the filename, wherein the encoded address identifies where a voice check ticket is stored, wherein the voice check ticket comprises voice check text, and wherein a prior name of the encrypted file and the encoded address are merged together within the filename;

    parsing, by the recipient computer, the received filename;

    extracting, by the recipient computer, the encoded address from the parsed filename;

    accessing, by the recipient computer, the voice check ticket at the encoded address extracted from the parsed filename;

    receiving, by the recipient computer from the voice check ticket, the voice check text;

    visually displaying, by the recipient computer, the received voice check text on a computer display of the recipient computer;

    prompting, by the recipient computer, the recipient to read aloud the displayed voice check text;

    receiving, by the recipient computer, an audio signal from a reading aloud by the prompted recipient of the displayed voice check text;

    transmitting, by the recipient computer to a server computer comprising a voice check server, the received audio signal and an identifier of the recipient;

    receiving, by the recipient computer from the server computer, an encryption key after the server computer has;

    (i) converted the audio signal to first text, (ii) determined that the first text matches the received voice check text, (iii) computed a voiceprint of the audio signal, and (iv) determined that the computed voiceprint matches a voiceprint stored in a voiceprint database of the voice check server and associated with the transmitted identifier of the recipient; and

    decrypting, by the recipient computer, the received encrypted file using the received encryption key.

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