The present invention is provided to reduce a time required for issuing a mobile credit card and to reduce cases of stopping the issuance of the mobile credit card by interrupted wireless communications or interference because a set of card information is transmitted from a card company server to a financial chip at a time, thereby improving the stability of issuance. [Reference numerals] (100) Card company server;(11) Financial chip;(AA) Random value 1;(CC,FF) Verification;(DD) Random value 2;(EE) Crypto 2 generation;(GG) Card company verification;(HH) Block data
