Authentication method of field contents based challenge and enumerated pattern of field positions based response in random partial digitized path recognition system
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United States of America Patent
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Oct 21, 2014
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app pub date -
Oct 23, 2012
filing date -
Oct 23, 2012
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Abstract
An interactive method for authentication is based on a shared secret which is in the form of an enumerated pattern of fields on a frame of reference. An instance of the frame of reference comprises an array of characters in which the characters are arranged in a random or other irregular pattern on a grid of content fields. An authentication challenge includes characters from the character set, and is delivered in- or out-of-band. The authentication response includes the enumerated position numbers on the enumerated pattern of the field locations on the grid at which the challenge characters are found.
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