Dynamic encryption system used for computer keyboard

Abstract

The invention discloses a dynamic encryption system used for a computer keyboard. The dynamic encryption system used comprises a keyboard body provided with keys, and further comprises a pressure sensing array, a photoelectric sensing array, a signal acquisition unit, a signal converting unit, a central processing unit and a key output unit, wherein the pressure sensing array is used for detecting pressure of each key to obtain a pressure signal; the keys in one region are arranged to be transparent keys by the keyboard body, and the photoelectric sensing array is arranged in the transparent keys; the photoelectric sensing array is used for detecting the ray coverage condition of the surface of each transparent key, and an optical signal is collected and is converted to an electric signal; the central processing unit obtains key characters, forms a key password according to the obtained time sequence, obtains a transparent key coverage area and forms a dynamic image through a coverage process; and the key output unit outputs a key. According to the dynamic encryption system, a key generation process combining static and dynamic passwords is realized, and the dynamic encryption system can be better used for an encryption process of a 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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