DEVICE AND SECURITY TAG FOR NEAR FIELD COMMUNICATION PROVIDING ENHANCED SECURITY

摘要

Disclosed are a near field communications terminal with an enhanced security and a security tag. A near field communications device for performing a near-field communications with a terminal comprises: an antenna; an authentication tag module connected to the antenna; at least one information tag module which can include information to transmit/receive or perform an arithmetic operation through the near-field communications with the terminal; and at least one antenna switch which connects the information tag module with the antenna. A terminal for transmitting/receiving information with the near-field communications device comprises: a tag authentication unit which performs an authentication with an authentication security tag of the near-field communications device; a tag selection unit which selects an information tag module to activate among one or more information tag modules included in the near-field communications device; and an information processing unit which transmits/receives information to and from the selected information tag module and processes the information.