Smart card device, device for generating virtual code for authentication, method of generating virtual code for authentication using the same, and server for verifying virtual code for authentication

A smart card device comprising:

• an NFC module configured to receive time data from a device for generating a virtual code for authentication through card tagging;
• and
• an IC module configured to generate a virtual code for primary authentication based on the received time data,
• wherein the virtual code for primary authentication is autonomously transmitted and used for user authentication or is used to generate a virtual code for secondary authentication,
• the virtual code for secondary authentication is generated by the device for generating a virtual code for authentication by using the virtual code for primary authentication, and
• at least one of the virtual code for primary authentication and the virtual code for secondary authentication is transmitted from the device for generating a virtual code for authentication to a server so that the server performs verification on the virtual code for primary authentication and the virtual code for secondary authentication.

A device for generating a virtual code for authentication, comprising:

• a communication unit configured to transmit time data to a card upon tagging of the card in which an IC chip has been embedded and receive, from the card, a virtual code for primary authentication generated based on the time data;
• a code generation unit configured to generate a virtual code for secondary authentication by using the virtual code for primary authentication;
• and
• a verification request unit configured to request the server to perform verification on at least one of the virtual code for primary authentication and the virtual code for secondary authentication by transmitting the at least one to the server through the communication unit.

A method for verifying a virtual code for authentication, which is performed by a server, comprising:

• receiving at least one of a virtual code for primary authentication and a virtual code for secondary authentication from a device for generating a virtual code for authentication;
• and
• performing verification on at least one of the virtual code for primary authentication and the virtual code for secondary authentication,
• wherein if the virtual code for secondary authentication comprises a plurality of codes, performing the verification comprises:
• extracting first user identification (UID) which is identification information of a card based on a first code and second code of the plurality of codes and performing verification on the card, and
• extracting second UID which is identification information of the device for generating a virtual code for authentication based on the first code and third code of the plurality of codes and performing verification on the device for generating a virtual code for authentication.