Pictograph password security system

  • US 10,182,047 B1
  • Filed: 06/30/2016
  • Issued: 01/15/2019
  • Est. Priority Date: 06/30/2016
  • Status: Active Grant
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First Claim
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1. A method comprising:

  • receiving, at a server computer, an assigned pictograph sequence request from a client device;

    accessing, by one or more processors of the server computer, a first data structure that contains a plurality of pictographs that are displayable on the client device;

    generating, using the one or more processors, a template pictograph sequence that includes at least two pictographs from the first data structure;

    accessing, by the one or more processors, a second data structure that contains words and phrases that are associated with the pictographs contained in the first data structure;

    determining, by the one or more processors, an association phrase for the template pictograph sequence, the association phrase based on the words and phrases associated with pictographs within the template pictograph sequence and based on an order of pictographs within the template pictograph sequence, the association phrase being determined at least in part by selecting, based on a second pictograph of the at least two pictographs, at least one of the words and phrases associated with a first pictograph of the at least two pictographs as a first word or phrase of the association phrase;

    computing a first coherency metric representing a first coherency between the selected at least one of the words and phrases associated with the first pictograph and a first of at least one of the words and phrases associated with the second pictograph;

    computing a second coherency metric representing a second coherency between the selected at least one of the words and phrases associated with the first pictograph and a second of the at least one of the words and phrases associated with the second pictograph; and

    in response to determining that the second coherency metric is greater than the first coherency metric, selecting the second of the at least one of the words and phrases associated with the second pictograph as a second word or phrase of the of the association phrase;

    storing the template pictograph sequence on a memory; and

    transmitting instructions that cause a display of the pictograph sequence and the association phrase to the client device, the display presentable within a user interface.

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