A serial port communication protection device, serial port communication device and server

Abstract

The invention discloses a serial port communication protection device, a serial port communication device and a server. The serial port communication protection device includes a shift buffer module, a conversion module, a comparison module and a processing module. When it is determined that the string to be written includes a pre-stored sensitive string, it can independently desensitize the pre-stored sensitive string in the string to be written and transmit the desensitized string, ensuring the transmission Under the premise of string security, the hardware processing method of the hardware circuit eliminates the additional processing pressure brought by the CPU to run the desensitization software software processing method in advance, and will not affect the response speed of the CPU to other processing requirements; and The hardware processing method of desensitization processing using the serial port communication protection device has a faster processing speed than the software processing method of pre-running desensitization software in the prior art, and better meets the requirements for real-time processing of serial port data streams.

Description

Technical field [0001] The present invention relates to the field of communication circuit design, in particular to a serial communication protection device, a serial communication device and a server. Background [0002] Serial communication is a basic and widely used slow data transmission technology, relying on the serial communication device can achieve information interaction between different devices, the connection topology of the serial communication device may include the control interface, read and write module and serial shift module connected in turn, the CPU or embedded processor can establish information interaction with the peripheral through the serial communication device, and in practical applications, the peripheral can also display the information sent by the serial communication device through the serial port display interface. Therefore, in the scene where there is information interactive display, the information displayed in the serial port display interfa...

AI Technical Summary

Problems solved by technology

But for CPU or embedded processor, the amount of calculation that it needs to do is very huge, causes this kind of desensitization processing of information and still hand over the mode of desensitization of CPU or embedded processor to run desensitization software in advance. It brings additional processing pressure, and the occupied processing time is likely to affect the response speed of the CPU or embedded processor to other processing requirements, and the desensitization process is likely to lead to slower information interaction process under the limitation of its processing information performance. Large delay, which affects the information interaction experience

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