METHOD OF MUTUAL AUTHENTICATION BETWEEN A COMMUNICATION INTERFACE AND A HOST PROCESSOR OF AN NFC CHIPSET
First Claim
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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Accused Products
Abstract
An authentication method between a secure host processor and a controller of an NFC system, the controller being equipped with an NFC interface circuit sending and receiving contactless data, includes connecting the host processor to the controller and 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. The method further includes transmitting the second secret data to the controller and storing of the second secret data by the controller. The host processor may be removably associated with a contactless component storing the second secret data which is contactlessly transmitted to the controller.
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Citations
25 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- connecting the host processor to the controller;
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11. A system comprising:
- a controller connected to an interface circuit for sending/receiving contactless data of NFC type; and
a connector for connecting the controller to a host processor, the controller being configured to check 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, and to receive and store the second secret data when the system is initialized. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- a controller connected to an interface circuit for sending/receiving contactless data of NFC type; and
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21. A smart card comprising:
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an integrated circuit card removable from the smart card and integrating a secure processor saving a first secret data; and a contactless component coupled to an NFC interface circuit sending and receiving contactless data, and saving a second secret data for contactlessly transmitting, the second secret data being linked to the first secret data by a predefined relation. - View Dependent Claims (22, 23, 24, 25)
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Specification