| 摘要 |
Disclosed are a secure payment method, a digital system and a payment authentication system thereof. The secure payment method includes: a step in which the digital system transmits client authentication information for authentication of the digital system or an application installed in the digital system to the payment authentication system, which will process payment; a step in which, in case the client authentication information is authenticated by the payment authentication system, the digital system receives activation information capable of activating a protection module of at least a part of the application from the payment authentication system; a step in which the digital system activates an inactivated protection module on the basis of the received activation information; and a step in which the digital system generates a checking signal including payment authentication information on the basis of first part information which is stored in the digital system and corresponds to a part of the payment information of a user, and transmits the generated checking signal to the payment authentication system, through the activated protection module. An authentication checking procedure that the payment authentication information included in the checking signal transmitted by the payment authentication system is authenticated is performed. Only when the authentication checking procedure succeeds, payment processing using payment information of the user is performed. The payment information of the user is specified by the payment authentication system. The first part information is checked from the payment authentication information. Also, checked is second part information which is stored in the payment authentication system and corresponds to at least a part of the rest information except the first part information. The present invention enables the user to perform payment with improved security by using the digital system (for example, mobile phone) of the user simply. |
