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Authentication method

  • US 5,821,871 A
  • Filed: 06/25/1996
  • Issued: 10/13/1998
  • Est. Priority Date: 01/27/1994
  • Status: Expired due to Fees
First Claim
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1. An authentication method in an information technology device having a fixed and a portable data-carrier, an intelligent chip, means for entering, storing, programming, processing, random release, comparison, transmission, and display of information, as well as a means for signal processing and an actuator, the method comprising the steps of:

  • (a) constituting a plurality of associated ideas (PSPI) as constitutive elements in the form of images, symbols, text or sounds, said associated ideas (PSPI) being based on the individual knowledge and experiences of a person and being sufficient for the identification of that person, and storing said ideas;

    (b) storing in the storing means the constitutive elements of the PSPI in a plurality of element groups such that the elements of a first group are placed in a determined sequence and the elements of the remaining groups are placed in a random sequence;

    (c) adding numbers or letters to the constitutive elements of the stored PSPI by means of the device;

    (d) displaying on the displaying means the elements of the first group in a determined sequence and the elements of the remaining groups in a random sequence;

    (e) putting together the PSPI elements into a characteristic geometrical pattern of reconstituted PSPI, by connecting associated elements of the respective element groups;

    (f) generating a code, the code depending on the numbers or letters and their position in the geometrical pattern; and

    (g) comparing the code with a code permanently stored in the device.

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