Interfacing Method between Handheld Wireless Terminal and Smart Card

摘要

The present invention relates to an interfacing method between a portable terminal and a removable SIM card. When security is required, the terminal configures a security information request command and transmits the security information request command to the SIM card, and receives the security information request command. In response, the SIM card includes a step of constructing a response command including predetermined security information and transmitting the same to the terminal. As such, the present invention proposes a mechanism capable of performing security-related functions on a SIM card, thereby providing a wider range of services to a user.;SIM, smart card, SAT, security