Method and System for Operating Independent Payment for Various Web Platform

The present invention web platform relates to a standalone payment operation method and system, according to the Web platform-independent payment method of operation executed by the payment operation server to communicate with the merchant device, by the payment request from the user terminal connected to the merchant device, the receiving the payment requested product information from the merchant device, the validity of the goods information, receiving a signed value of the hash through the merchant key and the hash algorithm specified in the goods information distributed to the merchant device, through the signature value and price / camouflage verify and authenticate the validity of the merchant and device, M (M≥1) of web can provide a platform through N (N≥1) of a payment method from among the selected through the selection of payment interface displayed on the user terminal the n (1≤n≤N) entered through the billing interface corresponding to the payment method the n-way billing parameters And as a by receiving a payment request information generating a one-time payment authentication token for the payment request issued by the one user terminal is connected to the merchant device, the user terminal connected to the merchant system including the billing information displayed on the billing interface through the hash algorithm specified in the deployed merchant key and the issuing payment authentication token, receiving a hash hash value from the user terminal or merchant device the user terminal is connected, and the validity of said payment request information through the hash value, verification, by using the n-th system parameter billing and payment information, and performs payment approval procedure according to the n-th payment.