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METHOD OF MUTUAL AUTHENTICATION BETWEEN A COMMUNICATION INTERFACE AND A HOST PROCESSOR OF AN NFC CHIPSET

  • US 20080085001A1
  • Filed: 10/04/2007
  • Published: 04/10/2008
  • Est. Priority Date: 10/05/2006
  • Status: Active Grant
First Claim
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1. An authentication method between a secure host processor and a controller of an NFC system, the controller being connected to an NFC interface circuit sending and receiving contactless data, the method comprising:

  • connecting the host processor to the controller;

    checking that there is a predefined relation between a first secret data stored by the host processor and a second secret data stored by the controller;

    transmitting the second secret data to the controller; and

    storing the second secret data by the controller.

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