CN105049425B - A kind of physical isolation transmission method based on Quick Response Code - Google Patents
A kind of physical isolation transmission method based on Quick Response Code Download PDFInfo
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- CN105049425B CN105049425B CN201510366303.XA CN201510366303A CN105049425B CN 105049425 B CN105049425 B CN 105049425B CN 201510366303 A CN201510366303 A CN 201510366303A CN 105049425 B CN105049425 B CN 105049425B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
Abstract
The present invention provides a kind of physical isolation transmission method based on Quick Response Code, including：The initial data that first network terminal-pair needs to send carries out automatic Partitioning processing, obtains block data；Each block data is encrypted and is respectively converted into corresponding two-dimension code image；Show that each two-dimension code image obtains combined two-dimension code picture in order according to block sequence number in first network terminal；Second network terminal is scanned to combined two-dimension code picture；The combined two-dimension code picture collected is decrypted and is split as corresponding each two-dimension code image；Each two-dimension code image that fractionation obtains is parsed, each block data corresponding to acquisition simultaneously writes cache file；Second network terminal merges whole block datas of reception, and the initial data after completely being merged is stored.It is an advantage of the invention that improving the reliability and accuracy of data transfer, data syn-chronization difficult problem caused by solving tertiary-structure network, the security and efficiency of physical isolation transmission ensure that.
Description
Technical field
The present invention relates to filed of network information security, is passed more specifically to a kind of physical isolation based on Quick Response Code
Transmission method.
Background technology
Carry out information exchange with the development of social informatization, between each system is become with obtaining required information, data etc.
It is more and more important.And government, public security and some require information security higher enterprises, often require that Intranet and outer net or
Carry out physical isolation between secure computer and common computer, but in the society of present information high speed development, enter with outside
Row data interaction is inevasible, and way traditional at present is to carry out data friendship using disposable writable disc or gateway
Mutually.But so do not only that process is cumbersome, cost is high, and the data volume transmitted is small, efficiency is low, also can in transmitting procedure
Potential safety hazard is produced, is inconvenient.
The content of the invention
The technical problem to be solved in the present invention, it is to provide a kind of physical isolation transmission method based on Quick Response Code, passes through
Two-dimensional code data transmission mode, the reliability and accuracy of data transfer are improved, solved caused by Intranet isolates with outer net
Data syn-chronization difficult problem, while ensure that the security and efficiency of physical isolation transmission.
What the present invention was realized in：A kind of physical isolation transmission method based on Quick Response Code, including it is original for sending
The first network terminal of data and second network terminal for receiving initial data, perform following steps：
The initial data that step 10, the first network terminal-pair need to send carries out automatic Partitioning processing, obtains piecemeal
Data；The all corresponding block sequence number of each block data；
Step 20, each block data of the first network terminal-pair are encrypted and are respectively converted into corresponding two dimension
Code picture；
Step 30, show that each two-dimension code image obtains in order according to the block sequence number in the first network terminal
Combined two-dimension code picture；The combined two-dimension code picture is rearranged by plural Zhang Suoshu two-dimension code images；
Step 40, second network terminal are whole to the first network by two-dimensional code scanning device or high-speed camera
The combined two-dimension code picture shown on end is scanned；
The combined two-dimension code picture collected is decrypted, and is split as by step 50, second network terminal
Corresponding each two-dimension code image；
Step 60, second network terminal are parsed each two-dimension code image that fractionation obtains, and are corresponded to
Each block data and write local cache file；
Step 70, second network terminal merge the whole of the reception block data, are completely merged
The initial data afterwards is stored.
Preferably, the step 10 is further specifically, the first network terminal is according to the data of the initial data
Amount divides the initial data with the two-dimension code image memory capacity, obtains the block data, and the block data
The size of sum and last block data meets below equation respectively：
TotalBlock=(int) (_ File.Length/ (long) BlockSize)+1 (1)
LastBlockSize=(int) (_ File.Length- ((long) TotalBlock-1) * (long)
BlockSize) (2)
TotalBlock represents the sum of the block data in formula (1) and formula (2), and _ File.Length is represented
Initial data length, BlockSize represent block size, and the block size is self-defined, and LastBlockSize represents last institute
The size of block data is stated, then the sum of the block data can be obtained by formula (1), last can be obtained by formula (2)
The size of the block data.
Preferably, in the step 60, if abnormal conditions occur causes Transmission, breakpoint transmission is performed, it is described disconnected
Point, which resumes, to be comprised the following steps：
Step 61, second network terminal send retransmission instructions to first network terminal, and whole from the first network
End obtains the size of the block data sum and last block data (by block data sum and last
The transmission that the individual big I of the block data is calculated needed for the original data transmissions to second network terminal is always secondary
Number)；
The block data deposited in step 62, second network terminal verification local cache file, and from local
The block data deposited is read in circulation in cache file；
Step 63, second network terminal are respectively calculated acquisition to the block data deposited read respectively
Self-corresponding cryptographic Hash, and compared with the cryptographic Hash of each block data with being obtained from the first network terminal whether
It is identical：If so, then find out the maximum block data of block sequence number corresponding to wherein described block data, so as to obtain with still
Block sequence number list corresponding to the block data not transmitted；If it is not, then charge to area corresponding to the block data of damage
In block sequence number list；
Step 64, second network terminal according to corresponding to the block data of the damage list of block sequence number or
Block sequence number list corresponding to the block data not yet transmitted, acquisition pair is cycled through to the first network terminal
The instruction for the block data answered, and start the corresponding block count that first network terminal described in Asynchronous Reception is sent
According to；
Step 65, second network terminal carry out Infinite Cyclic to the block data of reception and judged until receiving
The correct block data；
The block data received is write local cache file and carries out nothing by step 66, second network terminal
Limit cycle criterion is successfully written local cache file until the block data；
Step 67, judge whether second network terminal receives all block datas：If so, then terminate to transmit；If
No, then circulation performs step 62 and arrives step 66.
After such scheme, the invention has the advantages that：
1st, it is transmitted by the way that substantial amounts of data are converted into two-dimension code image, improves the reliability and standard of data transfer
True property, solve data syn-chronization difficult problem caused by Intranet is isolated with outer net, ensure that the security of physical isolation transmission；
2nd, operated by breakpoint transmission, even if data transmission procedure abnormal conditions occurs and causes Transmission, also can next time
Data are transmitted continuing at the interruption, is transmitted without accent again, is saved the time, improve efficiency of transmission.
Brief description of the drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the inventive method execution flow chart.
Fig. 2 is one embodiment of the invention breakpoint transmission flow chart.
Embodiment
Referring to Fig. 1, a kind of physical isolation transmission method based on Quick Response Code of the present invention, including for sending initial data
First network terminal and receive initial data second network terminal, perform following steps：
The initial data that step 10, the first network terminal-pair need to send carries out automatic Partitioning processing, obtains piecemeal
Data；The all corresponding block sequence number of each block data；
Step 20, each block data of the first network terminal-pair are encrypted and are respectively converted into corresponding two dimension
Code picture；
Step 30, show that each two-dimension code image obtains in order according to the block sequence number in the first network terminal
Combined two-dimension code picture；The combined two-dimension code picture is rearranged by plural Zhang Suoshu two-dimension code images；
Step 40, second network terminal are whole to the first network by two-dimensional code scanning device or high-speed camera
The combined two-dimension code picture shown on end is scanned；
The combined two-dimension code picture collected is decrypted, and is split as by step 50, second network terminal
Corresponding each two-dimension code image；
Step 60, second network terminal are parsed each two-dimension code image that fractionation obtains, and are corresponded to
Each block data and write local cache file；
Step 70, second network terminal merge the whole of the reception block data, are completely merged
The initial data afterwards is stored.
Preferably, the step 10 is further specifically, the first network terminal is according to the data of the initial data
Amount divides the initial data with the two-dimension code image memory capacity, obtains the block data, and the block data
The size of sum and last block data meets below equation respectively：
TotalBlock=(int) (_ File.Length/ (long) BlockSize)+1 (1)
LastBlockSize=(int) (_ File.Length- ((long) TotalBlock-1) * (long)
BlockSize) (2)
TotalBlock represents the sum of the block data in formula (1) and formula (2), and _ File.Length is represented
Initial data length, BlockSize represent block size, and the block size is self-defined, and LastBlockSize represents last institute
The size of block data is stated, then the sum of the block data can be obtained by formula (1), last can be obtained by formula (2)
The size of the block data；
For example, transmitting a 10.5M word file, if self-delineating block size is 1MB, handle what is obtained by piecemeal
Block data sum is：TotalBlock=(int) (_ File.Length/
(long) BlockSize)+1=(10.5/1)+1=10+1=11, the size of last block data is：
10.5- (11-1) * 1=0.5.
As shown in Fig. 2 in the step 60, if abnormal conditions (including power-off etc. is unexpected) occur causes Transmission,
Breakpoint transmission is performed, the breakpoint transmission comprises the following steps：
Step 61, second network terminal send retransmission instructions to first network terminal, and whole from the first network
End obtains the size of the block data sum and last block data (by block data sum and last
The transmission that the individual big I of the block data is calculated needed for the original data transmissions to second network terminal is always secondary
Number)；
The block data deposited in step 62, second network terminal verification local cache file, and from local
The block data deposited is read in circulation in cache file；
Step 63, second network terminal are respectively calculated acquisition to the block data deposited read respectively
Self-corresponding cryptographic Hash, and compared with the cryptographic Hash of each block data with being obtained from the first network terminal whether
It is identical：If so, then find out the maximum block data of block sequence number corresponding to wherein described block data, so as to obtain with still
Block sequence number list corresponding to the block data not transmitted；If it is not, then charge to area corresponding to the block data of damage
In block sequence number list；
Step 64, second network terminal according to corresponding to the block data of the damage list of block sequence number or
Block sequence number list corresponding to the block data not yet transmitted, acquisition pair is cycled through to the first network terminal
The instruction for the block data answered, and start the corresponding block count that first network terminal described in Asynchronous Reception is sent
According to；
Step 65, second network terminal carry out Infinite Cyclic to the block data of reception and judged until receiving
The correct block data；
The block data received is write local cache file and carries out nothing by step 66, second network terminal
Limiting cycle criterion, (situations such as preventing disk write error sends out until the block data is successfully written local cache file
It is raw, ensure the accuracy of data)；
Step 67, judge whether second network terminal receives all block datas：If so, then terminate to transmit；If
No, then circulation performs step 62 and arrives step 66.
The present invention, it is transmitted by the way that substantial amounts of data are converted into two-dimension code image, improves the reliable of data transfer
Property and accuracy, solve data syn-chronization difficult problem caused by Intranet is isolated with outer net, ensure that physical isolation transmission peace
Quan Xing, and improve efficiency of transmission.
Although the foregoing describing the embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us are merely exemplary, rather than for the restriction to the scope of the present invention, are familiar with this
The equivalent modification and change that the technical staff in field is made in the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (2)
- A kind of 1. physical isolation transmission method based on Quick Response Code, it is characterised in that：Including for sending the first of initial data The network terminal and second network terminal for receiving initial data, perform following steps：The initial data that step 10, the first network terminal-pair need to send carries out automatic Partitioning processing, obtains block data； The all corresponding block sequence number of each block data；Step 20, each block data of the first network terminal-pair are encrypted and are respectively converted into corresponding Quick Response Code figure Piece；Step 30, show that each two-dimension code image is combined in order according to the block sequence number in the first network terminal Two-dimension code image；The combined two-dimension code picture is rearranged by two-dimension code image multiple described；Step 40, second network terminal are by two-dimensional code scanning device or high-speed camera in the first network terminal The combined two-dimension code picture of display is scanned；The combined two-dimension code picture collected is decrypted for step 50, second network terminal, and is split as correspondingly Each two-dimension code image；Step 60, second network terminal are parsed each two-dimension code image that fractionation obtains, each corresponding to acquisition The block data simultaneously writes local cache file；In the step 60, if abnormal conditions occur causes Transmission, breakpoint transmission is performed, the breakpoint transmission is included such as Lower step：Step 61, second network terminal send retransmission instructions and obtained to first network terminal, and from the first network terminal Take the block data sum and the size of last block data；The block data deposited in step 62, second network terminal verification local cache file, and from local cache The block data deposited is read in circulation in file；It is respective right that step 63, second network terminal are respectively calculated acquisition to the block data deposited read The cryptographic Hash answered, and compared with the cryptographic Hash of each block data with being obtained from the first network terminal whether phase Together：If so, then find out the maximum block data of block sequence number corresponding to wherein described block data, so as to obtain with not yet Block sequence number list corresponding to the block data of transmission；If it is not, then charge to block corresponding to the block data of damage In sequence number list；Step 64, second network terminal block sequence number list or described according to corresponding to the block data of the damage Block sequence number list corresponding to the block data not yet transmitted, is cycled through corresponding to acquisition to the first network terminal The instruction of the block data, and start the corresponding block data that first network terminal described in Asynchronous Reception is sent；Step 65, second network terminal carry out Infinite Cyclic to the block data of reception and judged until receiving correctly The block data；The block data received is write local cache file and infinitely followed by step 66, second network terminal Ring is judged until the block data is successfully written local cache file；Step 67, judge whether second network terminal receives all block datas：If so, then terminate to transmit；If it is not, then Circulation performs step 62 and arrives step 66；Step 70, second network terminal merge the whole of the reception block data, after completely being merged The initial data is stored.
- A kind of 2. physical isolation transmission method based on Quick Response Code according to claim 1, it is characterised in that：The step 10 further specifically, the first network terminal is held according to the data volume of the initial data with two-dimension code image storage Amount divides the initial data, obtains the block data, and the sum and last described block count of the block data According to size meet below equation respectively：TotalBlock=(int) (_ File.Length/ (long) BlockSize)+1 (1)LastBlockSize=(int) (_ File.Length- ((long) TotalBlock-1) * (long) BlockSize) (2)TotalBlock represents the sum of the block data in formula (1) and formula (2), and _ File.Length represents original Data length, BlockSize represent block size, and the block size is self-defined, and LastBlockSize represents last described point The size of block number evidence, then the sum of the block data can be obtained by formula (1), as described in formula (2) can obtain last The size of block data.
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