Integrated contactless MPOS implementation
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United States of America Patent
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Nov 20, 2018
Grant Date -
Oct 2, 2014
app pub date -
Apr 2, 2014
filing date -
Apr 2, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein is a method for performing an integrated contactless point-of-sale transaction. More particularly, there is disclose a method comprising: receiving, by a mobile device 1, a seed number from a communications network; generating, by the mobile device 1, one or more session keys, in dependence on the received seed number, for use in encrypted communication with the mobile device 1; and/or generating, by the mobile device 1, a pre-image, in dependence on the received seed number, for use in generating an unpredictable number for use in secure communication with the mobile device. Advantageously, the generation of session keys and/or a pre-image in dependence on a seed number provided to the mobile device improves the security of the system since the source of the seed number can detect incorrect session keys and/or unpredictable number derived from an incorrect pre-image.
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