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Method, system, and storage medium for determining trivial keyboard sequences of proposed passwords

  • US 7,062,655 B2
  • Filed: 01/23/2002
  • Issued: 06/13/2006
  • Est. Priority Date: 01/23/2002
  • Status: Expired due to Fees
First Claim
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1. A network system for determining trivial keyboard sequences of a proposed password, comprising:

  • a user system;

    a computer keyboard input device associated with said user system;

    a server in communication with said user system via a communications link;

    a data storage device coupled to said server, said data storage device housing;

    a database including a keyboard profile wherein said keyboard profile specifies a physical layout of character and function keys on said computer keyboard input device;

    a master password database including a user account associated with said user system; and

    a password verification mechanism executable by said server;

    wherein, upon execution, said password verification mechanism performs an algorithm on said proposed password, said algorithm including a first formula, comprising;




    X1

    X
    2+ . . . +Δ

    X
    (n−

    1)
    )/(n

    1)>

    0;

    wherein;

    X represents data coordinate of each character of said proposed password on an X axis of the keyboard profile;

    n represents the number of characters comprising said proposed password; and

    Δ

    X1 represents an absolute value of a difference between a first and second data coordinate on said X axis;

    and wherein further data coordinates are plugged into said first formula for determining vertical triviality.

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