Method and system for realizing USB secure transmission in local area network

Abstract

The invention provides a method and a system for realizing USB secure transmission in a local area network. The system comprises a USB flash disk, isolation equipment, a plurality of common equipment and controlled equipment; the USB flash disk is connected with an isolation device through a USB interface, and the isolation device is connected to a local area network through the interface by adopting an international general network protocol; the common equipment and the controlled equipment cannot directly access the USB flash disk, and the common equipment and the USB flash disk are physically isolated through the isolation equipment, so that a local area network system has immunity to the USB flash disk, and the common equipment in the local area network needs to access the isolation equipment through a browser to read and write the displayed USB flash disk content. The safety problem of local area network USB data transmission is solved by adopting isolation equipment, data encryption and a one-way transmission interface mechanism, so the effect of USB data two-way safety transmission in a local area network is achieved.

Description

technical field [0001] The invention relates to the technical field of network technology, in particular to a method and a system for realizing USB safe transmission in a local area network. Background technique [0002] In enterprises, there are more and more cases of using U disks, but the security risks are also becoming more and more serious. Because the U disk is small and easy to carry, it is connected to the device through the USB interface, so almost everyone has one. For enterprises, data security is the first priority. Once some confidential documents are copied away, the consequences will be serious. However, because the USB flash drive is too small and easy to carry, it is hard to guard against. There are two main harms of USB flash drives to enterprises: one is the opportunity to copy data, and the other is the risk of spreading viruses. There are many ways to spread viruses now, and using U disks to spread viruses is one of the important channels for virus sp...

AI Technical Summary

Problems solved by technology

[0003] Due to the frequent use of USB flash drives, the transmission of viruses is very diverse, and mutual infection is easy to occur in the office

Once infected, some viruses will be automatically copied to the local computer, lurking in undetectable file directories, even if the U disk is completely formatted, the latent viruses will quickly replicate and spread, as long as other U disks are plugged in will also be infected, forming a vicious circle

[0004] After the virus enters the computer through the U disk, it will occupy a large amount of resources, resulting in extremely high CPU usage, and the system will be unsustainable

Some viruses automatically download virus programs through the Internet. Once a computer is infected with a virus, the entire company's local area network is also interfered by a large number of garbage data signals due to the infection of the virus transmitted by the U disk, and the traffic is blocked, resulting in network paralysis.

[0005] Therefore need to provide a kind of method to solve the security problem of LAN USB data transmission

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