User device using NFC, authentication system and operation method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorBongsu Jeon
Life of this patent
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Abstract
An operation method of a user device which performs near field communication (NFC) with a card reader includes downloading a service certification of a service, which the card reader provides, from a service authentication server through a network, sending status information of the user device to the card reader, receiving a service identifier (ID) which the card reader sends depending on the status information, performing an authentication process with the card reader based on a symmetric key when the service ID is present in the downloaded service certification, and sending an authentication success message to the card reader when the authentication process succeeds.
Claims10
A method of operating a user device which performs near field communication (NFC) with a card reader, the method comprising:
- storing a service certification downloaded from a service authentication server through a network;
- sending status information to the card reader, the status information indicating whether a status of the user device is inactive;
- selectively performing an authentication process of authenticating the card reader based on a symmetric key, only in response to the status of the user device being inactive and a service ID received from the card reader corresponding to the service certification stored in the user device;
- and
- sending an authentication success message from the user device to the card reader in response to the user device confirming the authenticity of the card reader through the authentication process.
Dependencies are inferred from the claim text.