User access control based on a graphical signature
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United States of America Patent
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Apr 4, 2017
Grant Date -
Dec 18, 2014
app pub date -
Dec 2, 2011
filing date -
Dec 2, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A user inputs a pattern consisting of a plurality of lines. The lines are classified by relative length, overall direction and degree of curvature. Where a line is started from a new position, the direction from the previous starting point is taken into account. The series of lines is then serialized into a key value, which may then be used to decrypt data stored on a device. This enables data to be securely stored since the key is supplied by the user at runtime and is not itself stored on the device.
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