Method and system for authenticating transaction request from device

摘要

A method and system for authenticating a transaction request from a device are provided. The method includes storing authentication information that is generated by the device based on a user input to the device; and when the device approaches to within a predetermined range from the POS terminal, providing the authentication information to the POS terminal. The authentication information that is provided to the POS terminal is compared with authentication information that is generated by the POS terminal based on a user input to the POS terminal, and then is used to authenticate a transaction request from the device.