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Pressure aware unlock pattern for touch devices

IP.com Disclosure Number: IPCOM000246097D
Publication Date: 2016-May-05
Document File: 1 page(s) / 38K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a solution for mobile devices that protects passwords from being disclosed through direct observation and increase the complexity required to resolve the password.

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Pressure aware unlock pattern for touch devices

Disclosed is a solution for mobile devices that protects passwords from being disclosed through direct observation and increase the complexity required to resolve the password.

    The key lock currently used on many mobile devices is insecure and susceptible to 'shoulder surfing' where someone can look over another person

shoulder to observe that person entering the password. This disclosure improves

the security of touch screen locking mechanisms.

    With the inclusion of pressure sensitive touch screens on mobile devices, it now possible to return multiple values for each location on the screen derived from the location that is touched and a measure of the pressure applied.

    By applying this technology to existing security mechanisms it is possible to improve the security. The most direct implications of this proposal are:

• Possible password combinations are exponentially increased without any change in keypad design - A 10 digits keypad with two levels of pressure for a 4 length digits combination could accept 160.000 different combinations.

• Viewed passwords are still secure - A person observing a password being entered only sees the numbers pressed but can't know the pressure applied to each.

Pressure sensitive touch screens can support different degrees of sensitivity.

There are proposals suggesting up to two hundred fifty six discreet pressure states

while others suggest four. If we take the example of four d...