A Dynamic Encryption System for Computer Keyboard

Abstract

The invention discloses a dynamic encryption system for a computer keyboard, which includes a keyboard body provided with keys, and also includes: a pressure sensing array, a photoelectric sensing array, a signal acquisition unit, a signal conversion unit, a central processing unit, and a key An output unit, wherein the pressure sensing array detects the force of the key to obtain a pressure signal; the keyboard body sets the key in an area as a transparent key, and the photoelectric sensing array is arranged in the transparent key; the photoelectric sensing array is used to Detect the light coverage on the surface of the transparent key, and collect the light signal; convert it into an electrical signal; the central processing unit obtains the key character, and forms the key password according to the obtained time sequence, and obtains the transparent key coverage area, and The covering process is formed into a dynamic image; the key output unit outputs a key. The invention realizes the key generation process combining the static and dynamic passwords, and can be better used in the encryption process of the computer system.

Description

technical field [0001] The invention relates to a dynamic encryption system for computer keyboards, belonging to the technical field of computer input devices. Background technique [0002] The computer keyboard is the channel for inputting the control information of the text information into the computer, which evolved from the English typewriter keyboard. When using a computer, the keyboard is a necessary input tool and an input device for controlling human-computer interaction display. It consists of many function keys and can also be used to control the work of the program. [0003] The mechanical keyboard is the earliest structure adopted. It is generally similar to the principle of a metal contact switch to make the contacts turn on or off. It has the characteristics of simple process, convenient maintenance, general feel, loud noise, and easy wear. The keyboard uses copper leaf spring as the elastic material. The copper sheet is easy to break and lose its elasticity,...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a dynamic encryption system for computer keyboards, solve the problem that the existing computer keyboards can only generate character string passwords, but cannot generate dynamic passwords, and realize static encryption. Key generation process combined with dynamic password

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