Intermediary physical isolation method and system applied to USB interface

Abstract

The invention discloses an intermediary physical isolation method applied to a USB (Universal Serial Bus) interface. The intermediary physical isolation method comprises the following steps that: external USB equipment is connected into a security management and control module; a memory identification unit judges whether the external USB equipment is used authorization equipment or not, and sendsinformation to a management machine; the management machine receives the information and makes a verification judgment, and if the management machine is authorized equipment, the management machine passes the verification, and if the management machine is not authorized equipment, the management machine enters an intermediate detection module to detect permission; the intermediate detection moduletransmits authority detection information to the management machine; and the management machine receives the authority detection information, controls on-off of an internal switch of the security management and control module, physically manages and controls access and use authorities of all USB interfaces of the monitoring system host, effectively prevents and controls an information safety problem, and guarantees secure and stable operation of electric power monitoring.

Description

technical field [0001] The invention relates to the technical field of electronic information security, in particular to an intermediary physical isolation method and system applied to a USB interface. Background technique [0002] As computers and various electronic devices are more and more widely used in daily life, USB interfaces are used more and more frequently, such as mouse, keyboard, U disk, mobile hard disk, external sound card, power bank, electronic cigarette, etc. All use the USB interface, and plug and play. According to statistics, except for the network adapter interface among all physical interfaces, the USB interface has the highest efficiency in spreading malicious virus programs, and the USB protocol can also be used by attackers to attack, so the USB interface has become a target for the spread of many malicious programs and network security attacks. carrier. [0003] The types of attacks via USB are mainly divided into the following categories: USB ph...

AI Technical Summary

Problems solved by technology

The management and control methods of this type of software can prevent USB phishing attacks, but there is no way to prevent HID masquerading attacks and 0-day vulnerability attacks on USB devices

Moreover, the existing management and control methods are generally through manual monitoring. With the continuous development of intelligent technology, advanced trend technology is applied to the management and control methods, but the above two protective measures cannot be intelligently and effectively avoided under the condition of meeting the work requirements. Therefore, it is of great significance to propose a new method to prevent and control the information security of USB interface

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