Information safety computer

Abstract

The invention relates to an information safety computer, which belongs to the technical field of computer safety, particularly suitable for using on occasion with strict requirement to computer information safety. The invention comprises a central processing unit and a mainboard, wherein the mainboard is provided with a safety control system which includes a south bridge chip, a super input output chip, a basic input output system chip and a safety chip, the safety chip is an integrated circuit chip which is equipped with an LPC interface or simultaneously with an SPI interface, one end of the integrated circuit chip is used to connect with the LPC interface of the south bridge chip, the other end of the integrated circuit chip is connected with the super input output chip and the basic input output chip. The invention has the advantages that the LPC interface on the mainboard is safely controlled, thereby in particular simultaneously the invention realizes real-time for equipment under the basic input output system chip and the super input output chip in a structural manner of pure hardware. As a result, the computer information safety is more effectively realized.

Description

technical field [0001] The invention relates to an information security computer, which belongs to the technical field of computer security and is particularly suitable for use in occasions with strict computer information security requirements. Background technique [0002] Existing general-purpose computers (see figure 2 ), it is completely open to access to any standard equipment, such as the equipment under the basic input and output system chip (BIOS) and the super input and output chip (SuperI / O), such as mouse, keyboard, floppy drive and connected to the parallel port or Devices such as printers on the serial port, etc. The reading and writing methods and communication protocols of these devices are open, which allows any user to directly access these devices. Since this open structure makes some malicious attacks possible, there are great computer security risks. The basic input and output system chip (BIOS), as an important part of booting the system, is often th...

AI Technical Summary

Problems solved by technology

These practices, to a certain extent, have played a safe management function for devices under the basic input and output system chip (BIOS) and super input and output chip (Super I / O), and are suitable for many occasions. However, for more and For occasions with higher requirements, there are deficiencies, because these security control modules are inserted into the entire system as a side branch in the original computer system structure, and software cooperation is required. Effects that cannot be activated

In addition, the security module's control of the basic input and output system chip (BIOS) and the super input and output chip (Super I / O) of the equipment needs to be sent indirectly through the south bridge, and they cannot be directly controlled, which has a certain impact on efficiency.

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