Data transmission method and system

Abstract

The invention discloses a data transmission method and a data transmission system. The data transmission method comprises the steps that an optical fiber card controller and a data receiving terminal are in a disconnected state, the optical fiber card controller receives data of a data transmitting end; the optical fiber card controller is disconnected with the data transmitting end, and temporarily stores the data; and the optical fiber card controller is connected with the data receiving end, and sends the temporarily stored data to the data receiving end, wherein the data receiving end and the data transmitting end are respectively positioned at two relatively independent safe areas. According to the data transmission method and system provided by the invention, during a data transmission process, the optical fiber card controller is only connected and communicated with one of the data receiving end and the data transmission end at a moment is ensured, the physical isolation between the data receiving end and the data transmitting end is ensured, and the data transfer can be controlled via the optical fiber card controller, thus the security level of data transmission is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of integrated circuit design, and more specifically, to a data transmission method and system. Background technique [0002] With the rapid development of computer technology and integrated circuit technology, high-performance computer systems have gradually become the needs of economic and social development. At the same time, host security has also been elevated to the level of national security. [0003] At this stage, there is such a situation: servers in two or more different security domains need to communicate data irregularly, and these security domains do not allow the use of mobile storage devices. When faced with the need to use the optical fiber network for data transfer, ordinary optical fiber cards cannot achieve the corresponding functions, because once the optical fiber network is connected to different security domains, these originally isolated security domains will be connected im...

AI Technical Summary

Problems solved by technology

When faced with the need to use the optical fiber network for data transfer, ordinary optical fiber cards cannot achieve the corresponding functions, because once the optical fiber network is connected to different security domains, these originally isolated security domains will be connected immediately. All previous software-based security domains isolation will fail

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