Card-based dynamic password generation method and device

摘要

A card-based method for generating a dynamic password, in which the method comprises: power on a device, initialize a current running state as a first state, prompt a user to press down a mode key, the device determines an operation to be executed when the mode key is pressed down, obtain input data according to the operation on a number key pressed by the user in the case that a number key is pressed down; obtain a confirm state according to the operation on a state key pressed by the user in the case that a state key is pressed down; otherwise, execute a corresponding operation according to the current running state, the corresponding operation comprises: obtain a dynamic password according to the interaction with the card and preset process the password data and output the dynamic password. According to the invention, both internal data of the card held by the user and information input by the user take part in the generation of the dynamic password, thus, the password data is formed to protect from being manipulated so as to make the process of generating a dynamic password more secure.