Password input device and password input method thereof

Abstract

The invention provides a password input device and a password input method thereof. The password input device comprises a controller, a capacitive sensing chip and at least one capacitive touch sensing display, wherein any capacitive touch sensing display comprises a display device and a sensing electrode. The password input method comprises the following steps that: a controller randomly sends initial password numbers to all capacitive touch sensitive displays; when the controller obtains a preset sliding induction signal sent by any capacitive touch induction display, the controller increases or decreases the password number currently displayed by the currently operated capacitive touch induction display according to the preset sliding induction signal, and the capacitive touch inductiondisplay displays the increased or decreased password number; and the controller judges whether a password confirmation signal sent by the currently operated capacitive touch sensitive display is obtained, and if so, the controller determines that the password number currently displayed by the currently operated capacitive touch sensitive display is a selected password number. The password input device and the password input method thereof can improve the password input safety, and are convenient for operation.

Description

technical field [0001] The present invention relates to the technical field of password input, in particular to a password input device and a password input method of the password input device. Background technique [0002] Passwords accompany our daily life. Passwords are required for withdrawals, passwords are required for login, and even now companies need passwords for clocking in at work. Passwords are now inseparable from our lives. How to ensure the security of passwords is the most troublesome thing for password managers or instrument manufacturers. [0003] Points such as the use and transmission of passwords are the problem points of password leakage. We need to control the security of passwords at each node, especially in the places where passwords are most likely to be leaked, such as password input and display stages. More efforts need to be made. Keep it safe. [0004] Most of the current password input devices are digital buttons, or virtual digital buttons...

AI Technical Summary

Problems solved by technology

[0004] Most of the current password input devices are digital buttons, or virtual digital buttons on the touch screen. This kind of digital buttons is easy to be stolen by people. There have been news that ATMs were used by people after entering passwords with touch-screen digital buttons. The infrared camera steals the password. The reason why the password is stolen is that when we enter the password, the heat of the button we press is different from that of other buttons, which makes it easy for people to steal the password.

Images