Protection system for data security transmission between computer and disc

Abstract

The security protection system of computer transferring data with disk belongs to the field of the technology of data security. It is characterized in that it is a kind of system to protect the process of transferring secret data that is stored in the computer or different kinds of storage module. The system mainly includes a data-security unidirectional transducer with which the data is transferred from the low-secret device to high-secret device and the high-secret and low-secret software in the computer. The invention can solve effectively the problem that the high-secret data files is given away to the low-secret computer or disk which is the result from the virus, other objective or subjective results, or copying the data from the different secrets computers to another, different secrets portable storage devices to the computer, different secrets portable storage devices to another.

Description

technical field [0001] The invention relates to a computer and disk data security transmission protection system, which belongs to the technical field of data security protection. Background technique [0002] Due to the needs of national information security, troops, agencies, and secret-related enterprises are all faced with how to ensure that low-secret equipment (including low-secret computers or low-secret storage devices, etc.) Securely transfer file data. The so-called security is to ensure that when copying data and transferring files, data can only be transferred from low-class equipment to high-class equipment in one direction, and confidential data in high-class devices will not be leaked to low-class devices. At present, the commonly used method is to physically separate devices with different security levels, or manually use portable storage devices (such as: CF cards, memory sticks, U disks, removable hard disks, etc.) The data on the computer is copied to th...

AI Technical Summary

Problems solved by technology

This method is not only inefficient, but also, if there is a Trojan horse virus in the portable device, or human error, it will lead to the leakage of confidential data

The data security of the one-way physical isolation gatekeeper involved in the published patent CN1878172A depends on the write protection mechanism of the USB memory hardware, and the switching must be realized by the software of the computer, so this invention can only realize data between computers with different confidentiality levels. Secure transmission, unable to achieve secure data transmission between portable storage devices of different confidentiality levels and computers, and between portable storage devices of different confidentiality levels; in addition, the system has additional USB memory hardware overhead, if the data to be copied at one time is very large, then The storage space of the USB memory is correspondingly very large

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