SMART PHONE AND METHOD FOR PROVIDING CARD TRANSACTION BY MUTUAL CONSENT OF CERTIFICATION VALUE

摘要

PURPOSE: A smart phone for providing a card transaction through a settlement of a certification value and a method thereof are provided to investigate justification about a card transaction through a volatility certification value generated in a smart phone, thereby safely processing the card transaction requested from a issue company sever. CONSTITUTION: A interface output unit(125) outputs an interface inputting a user identification value matched with issuer information. A user registration(130) transmits the user identification value to a issue company server corresponding to a issue company. An authentication value generation unit(145) applies a key generation function to a dynamic seed value which is dynamically determined and generates a volatile authentication value dynamically. An authentication value output unit(150) displays the volatile authentication value which is generated on a screen.