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Secure file transfer method and system

  • US 20020095589A1
  • Filed: 11/28/2001
  • Published: 07/18/2002
  • Est. Priority Date: 11/28/2000
  • Status: Abandoned Application
First Claim
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1. A method of transferring a data file having a file name from a first computer operated by a first user to a second computer operated by a second user, under control of a third computer, comprising the steps of:

  • i) in the first computer, the first user selecting a data file for transfer and establishing a communications link with the third computer;

    ii) verifying an identity of the first user to the third computer by way of verification communications between the first and third computers;

    iii) in the first computer, wrapping or encrypting the data file within an executable file adapted to unwrap or decrypt the data file only upon activation by a unique key code, and then transmitting the executable file containing the wrapped or encrypted data file directly to the second computer together with first user identification information and the file name of the data file;

    iv) transmitting the file name of the data file from the first computer to the third computer, together with first user identification information and the unique key code;

    v) in the second computer, upon receipt of the executable file containing the wrapped or encrypted data file and upon attempted access thereto by the second user, establishing a communications link with the third computer;

    vi) verifying an identity of the second user to the third computer by way of verification communications between the second and third computers;

    vii) upon successful verification of the identity of the second user, transmitting the file name of the data file from the second computer to the third computer with a request for the unique key code; and

    viii) transmitting the unique key code from the third computer to the second computer so as to cause the executable file to unwrap or decrypt the data file and to allow access thereto in the second computer by the second user.

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