Systems and methods for remotely loading encryption keys in a card reader systems
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United States of America Patent
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May 27, 2014
Grant Date -
Mar 15, 2012
app pub date -
Sep 13, 2011
filing date -
Sep 13, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and methods for remotely loading encryption keys in card reader systems are provided. One such method includes storing, at a card reader, a device identification number for identifying the card reader, a first magnetic fingerprint of a data card, and a second magnetic fingerprint of the data card, wherein each of the first and second fingerprints includes an intrinsic magnetic characteristic of the data card, encrypting, using a first encryption key derived from the second fingerprint, information including the device identification number and first fingerprint, sending the encrypted information to an authentication server, receiving, from the authentication server, a score indicative of a degree of correlation between the first fingerprint and second fingerprint, and receiving, when the score is above a preselected threshold, a second encryption key from the authentication server, the second encryption key encrypted using a third encryption key derived from the first fingerprint.
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