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System and method for obtaining equipment identification information in one-way mode

A technology for identifying information and devices, applied in the field of data processing, and can solve problems such as leakage of sensitive information

Inactive Publication Date: 2017-08-04
SHANDONG ZHONGFU INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The host at one end can write data into the EDID of the display device, and the host at the other end can obtain the data by reading the EDID of the display device, resulting in the leakage of sensitive information

Method used

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  • System and method for obtaining equipment identification information in one-way mode
  • System and method for obtaining equipment identification information in one-way mode
  • System and method for obtaining equipment identification information in one-way mode

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Embodiment Construction

[0073] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0074] This embodiment provides a system for one-way acquisition of device identification information, including: a protection device, an identification channel unit, and multiple devices to be connected;

[0075] The protection device is respectively connected to each device to be connected by identifying the channel unit;

[0076] The identification channel unit includes: a main control...

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Abstract

The invention provides a system for obtaining equipment identification information in a one-way mode. A main-control module receives access conditions input by the outside, according to the received access conditions, to-be-accessed equipment conforming to the access conditions is selected through an equipment selector, identification information generated by an identification information generation module is read, the identification information is transmitted to the to-be accessed equipment through an optical single channel connected with the to-be-accessed equipment, and the to-be-accessed equipment uses the identification information stored and received by an analogue storage module; data interaction is established between the to-be-accessed equipment and a protection device. The system for obtaining the equipment identification information in the one-way mode effectively avoids the phenomenon that the protection device is rewritten by the to-be-accessed access equipment and used by illegal personnel for stealing data. The optical single channel conducts one-way data transmission, the data can only be transmitted to the end of the analogue storage module from the end of the main-control module, and reverse transmission cannot be conducted. The phenomenon that the data is exported through the protection device is prevented, and meanwhile physical isolation between the internal and external networks is achieved, and the phenomenon that the internal network data is stolen through the external network is prevented.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a system and method for unidirectionally acquiring device identification information. Background technique [0002] EDID: Extended Display Identification Data (Extended Display Identification Data) is a VESA standard data format that contains parameters about display devices and their capabilities, including vendor information, maximum image size, color settings, manufacturer presets, frequency range Limits and strings for the display name and serial number. This information is stored in the display section and is used to communicate with the system through a DDC (Display Data Channel), which is carried out between the display and the PC graphics adapter. DDC uses the I2C protocol for communication. I2C is a two-way transmission channel that can send and receive data in two directions. When two hosts in different information security domains share a display device. The host at o...

Claims

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Application Information

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IPC IPC(8): G06F13/42G06F13/10
CPCG06F13/4282G06F13/102
Inventor 万海山朱启超王亮李波蔡力兵张太祥苗功勋
Owner SHANDONG ZHONGFU INFORMATION IND
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