Adam Kiger asks: "I have written two programs with patents on both. The first program captures the keypress and keyup events per letter of a typed password in milliseconds and returns a numeric value per letter. I am also capturing the keypress of the first letter and the keyup of the next and returning a numeric value in milliseconds. My second program takes these values and runs an analysis of the values after 20 entries of your password to determine what I call a 'keyprint'. 91% of the time you enter the password my values captured matched each letter entry and the time between letters entered. I also can show the results of these tests in 2D graphical representaion. I used my wife as a test subject, gave her my password and she couldn't login to either Windows or my website! I have wrapped these programs around Windows Login and a Website's login control, and it works fine so far. The only problem I have found and not researched are the user using different keyboards. So I've come to ask Slashdot: Is this a viable security function?"
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