Method of safety ferriage of USB flash disk data

Abstract

The invention discloses a method of safety ferriage of USB flash disk data, which belongs to the technical field of information safety and computer software. The method realizes the data ferriage between an inner network and an outer network and is characterized in that an inner ferriage USB flash disk works in a pre-bringing-in state and a bringing-in state, wherein in the pre-bringing-in state, the inner ferriage USB flash disk can be read and written in the outer network and can not be read or written in the inner network, and in the bringing-in state, the inner ferriage USB flash disk can be read and can not be written both in the inner network and the outer network; an outer ferriage USB flash disk works in a pre-bringing-out state and a bringing-out state, wherein in the pre-bringing-out state, the outer ferriage USB flash disk can not be read or written in the outer network and can be read and written in the inner network, and in the bringing-out state, the outer ferriage USB flash disk can be read and can not be written both in the inner network and the outer network; after being approved, the inner ferriage USB flash disk and the outer ferriage USB flash disk are converted between two respective states; and the approval process comprises the step of correcting the reading and writing authority of the inner ferriage USB flash disk and the outer ferriage USB flash disk. The method can be used for the safety ferriage of data and realize the data safety interaction between the inner network and the outer network of a detail network.

Description

technical field [0001] The present invention relates to data security interaction between internal and external networks, in particular to a data security ferry method using a USB memory (hereinafter referred to as U disk) to realize secure data interaction between the internal network and external network of a confidential network, and belongs to information security and computer software technology field. Background technique [0002] Data ferry refers to bringing data from the isolated internal network to the external network, or bringing data from the external network into the internal network. The former is called "outward ferry" (or simply "outward ferry"), and the latter is called "inward ferry" (or simply "inward ferry"). When the internal and external networks are isolated from each other, CD burning and USB disk copying have become the most important tools for data ferrying. CD recording and U disk copying have their own advantages and disadvantages: Compared wit...

AI Technical Summary

Problems solved by technology

However, due to its convenience, people still use ordinary U disks more often, and often carry out data ferrying without precautions, causing the internal network to suffer from virus attacks, causing a large number of leaks inadvertently, causing serious damage to party and government agencies, the military, etc. And military enterprises and other enterprises and institutions have caused huge losses, and also pose a serious threat to personal privacy

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