METHOD AND APPARATUS FOR GENERATING DYNAMIC AUTHORIZATION CODE, AND PAYMENT TRANSACTION METHOD AND SYSTEM

摘要

A method and apparatus for generating a dynamic authorization code, and a payment transaction method and system. The method for generating a dynamic authorization code comprises: creating at least one payment card account, each payment card account being corresponding to a piece of payment card information; generating a dynamic authorization code, and establishing and saving a correspondence between the dynamic authorization code and the payment card account; and sending the dynamic authorization code to a user terminal for saving. Through technical solutions provided in embodiments of the present invention, a dynamic authorization code is generated, and a correspondence among the dynamic authorization code, a payment card account and payment card information is established. When a payment transaction is performed, a user can trigger a server to complete the payment transaction as long as the user provides the dynamic authorization code, and the dynamic authorization code can be updated or terminated at any time, so as to effectively improve security of the user data and the payment transaction.