Electronic authentication systems

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United States of America Patent

PATENT NO 9485092
SERIAL NO

14298280

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A transaction device for establishing a shared secret with a point of interaction (POI) over a communications network to enable encrypted communications between the transaction device and the point of interaction, the device comprising: an input arranged to receive communications from the point of interaction; a processor arranged to generate a first communication according to a Diffie-Hellman protocol; an output arranged to send the first communication to the point of interaction; wherein the processor is arranged to apply a randomly generated blinding factor, r, when generating the first communication and wherein, in response to receiving a second communication from the point of interaction at the input, the second communication having been generated according to the Diffie-Hellman protocol, the processor is arranged to apply the randomly generated blinding factor and generate a shared secret according to the Diffie-Hellman protocol in dependence on data contained within the second communication.

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Patent Owner(s)

  • MASTERCARD INTERNATIONAL INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Garret, Duncan London, GB 1 25
Mestre, Patrick Sart-Bernard, BE 15 61
Roberts, Dave Warrington, GB 25 370
Smets, Patrik Nijlen, BE 72 1612

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