Password protection apparatus and method and cipher keyboard

Abstract

The invention relates to a password protection device which is connected to a host system, the password protection device comprises a password keyboard with numeric keys and an enter key which is used for responding to the operation of a user and generating corresponding digital signal and acknowledge signal. The password protection device further comprises a random number generation unit and a processor, the password keyboard further comprises a display unit, the random number generation unit is used for generating random numbers, the display unit is used for displaying the random numbers, the processor is used for calculating password data according to the random numbers and a digital signal which is input by the user through the numeric keys and sending to the host system for a password validation, so that the input orders of any password on the keyboard are random while the user enters different numeric keys according to the different random numbers on the display unit, thereby effectively prevent password from being peeped. The invention also provides a corresponding password keyboard and a password protection method.

Description

technical field [0001] The invention relates to a password protection device, a corresponding password protection method and a password keyboard, in particular to a password protection device for preventing others from peeping, a corresponding password protection method and a password keyboard. Background technique [0002] At present, the most commonly used signal protection method is to adopt the form of password protection, such as personal computer, bank account and so on. When the user goes to the bank counter or the deposit and withdrawal machine to handle the deposit and withdrawal business, he needs to input his password from the password keyboard provided by the bank. Such as figure 1 As shown, it is a password keyboard 10 commonly used by banks, which is similar to the numeric keypad on the right side of a computer keyboard. The password keyboard 10 includes ten fixed numeric keys from 0 to 9, a confirmation key and an undo key. Its characteristic is that the num...

AI Technical Summary

Problems solved by technology

However, such a password keyboard 20 needs to be based on the original password keyboard 10, and all the original ten numeric keys are replaced with buttons with a display function. , if peepers can see most of the numbers on the password pad, the password is still easy to leak

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