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Secured file sharing system

  • US 10,380,360 B2
  • Filed: 03/24/2017
  • Issued: 08/13/2019
  • Est. Priority Date: 03/30/2016
  • Status: Active Grant
First Claim
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1. A method for facilitating secure file sharing, comprising:

  • identifying, by a first device of a first user, a data file to be sent to a second device of a second user;

    generating a plurality of coded fragments from the data file based on a generator matrix of erasure encoding, wherein a respective coded fragment of the plurality of coded fragments does not include plaintext data of the data file;

    generating a plurality of sub-files of the data file, wherein a respective sub-file comprises one or more coded fragments;

    attaching a first sub-file of the plurality of sub-files to an electronic communication destined to the second device;

    uploading a second sub-file of the plurality of sub-files to a cloud provider;

    embedding a link associated with the uploaded second sub-file into the electronic communication, wherein the link is protected based on a verification code;

    sending the electronic communication to the second device; and

    sending the verification code in a text message to a cell phone of the second user.

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