CN107483612A - A kind of cloud storage data-privacy guard method and device - Google Patents
A kind of cloud storage data-privacy guard method and device Download PDFInfo
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- CN107483612A CN107483612A CN201710770799.6A CN201710770799A CN107483612A CN 107483612 A CN107483612 A CN 107483612A CN 201710770799 A CN201710770799 A CN 201710770799A CN 107483612 A CN107483612 A CN 107483612A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
- H04L67/108—Resource delivery mechanisms characterised by resources being split in blocks or fragments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The invention discloses a kind of cloud storage data-privacy guard method and device, the present invention includes private file is split as into several data files according to the default strategy that splits；Data file is uploaded to be stored to cloud storage service device and record the mark of private file and its mark of corresponding data file and split strategy to local；After the download instruction for receiving user's transmission, corresponding private file is determined according to the mark that download instruction carries；The mark of data file after private file fractionation and corresponding fractionation strategy are determined according to the mark of private file；According to the mark of identified data file from cloud storage service device corresponding data file is locally downloading；Strategy is split according to identified, the data file for downloading acquisition is reassembled into private file.Using the present invention, whole private files are avoided as far as possible and are cracked the problem of causing information leakage, effectively increase the security that private file stores on cloud storage service device.
Description
Technical field
The present invention relates to cloud storage technical field, more particularly to a kind of cloud storage data-privacy guard method and device.
Background technology
Cloud storage refers to by functions such as cluster application, network technology or distributed file systems, a large amount of various in network
Different types of storage device gathers collaborative work by application software, common externally to provide data storage and Operational Visit
One system of function, there is huge memory space, and in simple terms, storage resource is exactly put on cloud and deposited for people by cloud storage
A kind of emerging scheme taken, user at any time, Anywhere can be connected on cloud by any web-enabled device
And carry out data storage.
It is more and more with the rapid development that increases with cloud storage technology of the enterprises and individuals for massive store demand
User's selection place the data in third-party cloud storage service device, but private data is stored in the by enterprises and individuals
When in tripartite's cloud storage service device, it is difficult to ensure that the security of private data.
Therefore, how to provide a kind of guard method of safe private data is that those skilled in the art need at present
Solve the problems, such as.
The content of the invention
It is an object of the invention to provide a kind of cloud storage data-privacy guard method and device, it avoids whole as far as possible
Private file is cracked the problem of causing information leakage, effectively increases the safety that private file stores on cloud storage service device
Property.
In order to solve the above technical problems, the invention provides a kind of cloud storage data-privacy guard method, including：
According to the default strategy that splits the private file for uploading to cloud storage service device will be needed to be split as several data
File, the private file carry mark with the data file；
Upload the data file stored to the cloud storage service device and record the private file mark and
The mark and fractionation strategy of its corresponding data file are to locally；
After the download instruction for receiving user's transmission, the mark carried according to the download instruction determines corresponding privacy text
Part；
According to the mark of the data file after the mark determination of the private file private file fractionation and accordingly
Fractionation strategy；
Corresponding data file is downloaded to from the cloud storage service device according to the mark of identified data file
It is local；
Strategy is split according to identified, the data file for downloading acquisition is reassembled into the private file.
Preferably, it is described to be split as the private file for needing to upload to cloud storage service device according to the default strategy that splits
Several data files, the private file carry markd method with the data file and specifically included：
The private file is from first to last split as several data files according to pre-set space size, finally drawn
If the part divided is less than the predetermined threshold value, using the part finally divided as a data file；The data
The mark of file includes the mark of the private file and the numbering of the data file；
Strategy is split determined by the basis, the data file for downloading acquisition is reassembled into the private file
Method includes：
By the data file according to the sequential combination of the numbering of the data file into the private file.
Preferably, it is described to be split as the private file for needing to upload to cloud storage service device according to the default strategy that splits
Several data files, the private file carry markd method with the data file and specifically included：
The private file is averagely split as to the data file of predetermined number, the mark of the data file is including described
The mark of private file and the data file corresponding positional information in the private file；
Strategy is split determined by the basis, the data file for downloading acquisition is reassembled into the private file
Method includes：
By the data file obtained of downloading according to the letter of the position in the private file included in respective mark
The sequential combination of breath is into the private file.
In order to solve the above technical problems, present invention also offers a kind of cloud storage data-privacy protection device, including：
Setting unit, strategy is split for being set for user；
Split cells, for according to the default strategy that splits the private file for uploading to cloud storage service device will be needed to split
For several data files, the private file carries mark with the data file；
Uploading unit, stored to the cloud storage service device for uploading the data file and record the privacy
The mark of file and its mark of corresponding data file and fractionation strategy are to locally；
Receiving unit, for receive user transmission download instruction after, according to the download instruction carry mark it is true
Fixed corresponding private file；
Determining unit, for determining the data file after the private file fractionation according to the mark of the private file
Mark and corresponding fractionation strategy；
Download unit, the mark for the data file determined by will count accordingly from the cloud storage service device
According to file download to locally；
Assembled unit, for splitting strategy determined by, the data file for downloading acquisition is reassembled into described
Private file.
Preferably, the split cells includes：
First splits subelement, for the private file to be from first to last split as into several according to pre-set space size
The data file, if the part finally divided is less than the predetermined threshold value, using the part finally divided as an institute
State data file；The mark of the data file includes the mark of the private file and the numbering of the data file；
First coding unit, for the numbering of the numbering of the private file and its data file to be distributed to accordingly
Data file as its mark；
Accordingly, the assembled unit is used for the sequential combination by the data file according to the numbering of the data file
Into the private file.
Preferably, the split cells includes：
Second splits subelement, for the private file to be averagely split as to the data file of predetermined number, the number
Include mark and the data file corresponding position in the private file of the private file according to the mark of file
Information；
Second coding unit, for by the numbering of the private file and its data file in the private file
The information of correspondence position distributes to corresponding data file as its mark；
Accordingly, the assembled unit is used for the data file that obtains downloaded according to being included in respective mark
The sequential combination of positional information in the private file is into the private file.
The invention provides a kind of cloud storage data-privacy guard method and device, the present invention is included according to default fractionation
Strategy will need the private file for uploading to cloud storage service device to be split as several data files, private file and data file
Carry mark；Data file is uploaded to be stored to cloud storage service device and record the mark of private file and its corresponding
The mark and fractionation strategy of data file are to locally；After the download instruction for receiving user's transmission, carried according to download instruction
Mark determine corresponding private file；The mark of the data file after private file fractionation is determined according to the mark of private file
And corresponding fractionation strategy；According to the mark of identified data file from cloud storage service device by corresponding data file
It is locally downloading；Strategy is split according to identified, the data file for downloading acquisition is reassembled into private file.Utilize this
Invention, is split as several data files by private file and uploads to cloud storage service device, situation about cracking is run into file,
A portion of private file can only be cracked, avoiding whole private files as far as possible and being cracked causes asking for information leakage
Topic, effectively increases the security that private file stores on cloud storage service device.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of flow chart of cloud storage data-privacy guard method provided by the invention；
Fig. 2 is a kind of structural representation of cloud storage data-privacy protection device provided by the invention.
Embodiment
The core of the present invention is to provide a kind of cloud storage data-privacy guard method and device, and it avoids whole as far as possible
Private file is cracked the problem of causing information leakage, effectively increases the safety that private file stores on cloud storage service device
Property.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The invention provides a kind of cloud storage data-privacy guard method, as shown in figure 1, Fig. 1 is provided by the invention one
The flow chart of kind cloud storage data-privacy guard method, this method comprise the following steps：
Step S1：According to default fractionation strategy the private file for uploading to cloud storage service device will be needed to be split as some
Individual data file, private file carry mark with data file；
It should be noted that before user uploads private file, user can set a variety of fractionation strategies, for example, literary
This document splits strategy, picture file splits strategy and video file splits strategy, can be with when user uploads private file
The fractionation strategy of private file is selected by user, private file is carried out to split into several data files simultaneously according to strategy is split
Cloud storage service device is uploaded to, can also be selected by the private file type that cloud storage service device uploads as needed.
Step S2：Upload the mark and its correspondingly that data file is stored to cloud storage service device and records private file
Data file mark and split strategy to local；
It should be noted that after All Files uploads successfully, the upload data file of local cache is removed.
Step S3：After the download instruction for receiving user's transmission, the mark determination carried according to download instruction is corresponding hidden
Private file；
Step S4：According to the mark of the data file after the mark determination private file fractionation of private file and accordingly
Split strategy；
It should be noted that read the information of private file that locally preserves with determine the mark of corresponding data file with
And split strategy.
Step S5：Corresponding data file is downloaded from cloud storage service device according to the mark of identified data file
To local；
Step S6：Strategy is split according to identified, the data file for downloading acquisition is reassembled into private file.
As preferable, step S1 method specifically includes：
Private file is from first to last split as several data files according to pre-set space size, the part finally divided
If being less than predetermined threshold value, using the part finally divided as a data file；The mark of data file includes private file
The numbering of mark and data file；
According to the identified method bag for splitting strategy, the data file for downloading acquisition being reassembled into private file
Include：
By data file according to the sequential combination of the numbering of data file into private file.
For example, pre-set space size is 128K, since the initial address of private file, 128K data are divided into
One data file, and the mark of private file and the numbering of the data file are distributed to first data file：1, then
128K data are divided into second data file since the initial address of remaining data, and to second data file point
Numbering with the mark of private file and the data file：2, above operation is carried out successively, until remaining data is less than 128K,
Remaining data is divided into last data file.The mark of private file can be numbering or one section alphabetical group
Into special identifier symbol.When recovering private file, data file is ranked up and by data file according to the order of numbering
It is combined as private file.Certainly, the present invention does not limit the concrete numerical value of pre-set space size.
In other preferred embodiments, step S1 method specifically includes：
Private file is averagely split as to the data file of predetermined number, the mark of data file includes the mark of private file
Note and data file corresponding positional information in private file；
According to the identified method bag for splitting strategy, the data file for downloading acquisition being reassembled into private file
Include：
Order by the data file for downloading acquisition according to the positional information in private file included in respective mark
It is combined into private file.
For example, predetermined number is 10, private file is averagely split as to 10 data files, according to the position of this 10 files
Relation is put, the positional information of first data file at top is top1, and the positional information of second data file is top2, the
Three data file informations are top3, and the positional information of first data file at middle part is middle1, the like, bottom
The positional information of first data file be bottom1, and the mark for giving this 10 data files all to distribute private file,
When recovering private file, data file is combined into by private file according to the positional information of data file.Certainly, the present invention is unlimited
Determine the concrete numerical value of predetermined number.Certainly, positional information may also be only digital number, and its concrete structure present invention does not make specifically
Limit.
The invention provides a kind of cloud storage data-privacy guard method, the present invention includes will according to the default strategy that splits
The private file for uploading to cloud storage service device is needed to be split as several data files, private file carries with data file
There is mark；Upload mark and its corresponding data text that data file is stored to cloud storage service device and records private file
The mark and fractionation strategy of part are to locally；After the download instruction for receiving user's transmission, according to the mark of download instruction carrying
It is determined that corresponding private file；The mark and phase of the data file after private file fractionation are determined according to the mark of private file
The fractionation strategy answered；Corresponding data file is downloaded to from cloud storage service device according to the mark of identified data file
It is local；Strategy is split according to identified, the data file for downloading acquisition is reassembled into private file.Using the present invention,
Private file is split as several data files and uploads to cloud storage service device, situation about cracking is run into file, can only
A portion of private file is cracked, whole private files is avoided as far as possible and is cracked the problem of causing information leakage, have
Effect improves the security that private file stores on cloud storage service device.
Present invention also offers a kind of cloud storage data-privacy protection device, as shown in Fig. 2 Fig. 2 is provided by the invention
A kind of structural representation of cloud storage data-privacy protection device, the device include：
Setting unit 1, strategy is split for being set for user；
Split cells 2, for being torn open the private file for needing to upload to cloud storage service device according to the default strategy that splits
It is divided into several data files, private file carries mark with data file；
Uploading unit 3, stored for uploading data file to cloud storage service device and record the mark of private file
And its mark and fractionation strategy of corresponding data file are to locally；
Receiving unit 4, for receive user transmission download instruction after, according to download instruction carry mark determine phase
The private file answered；
Determining unit 5, for according to private file mark determine private file split after data file mark with
And corresponding fractionation strategy；
Download unit 6, the mark for the data file determined by is from cloud storage service device by corresponding data
File download is to locally；
Assembled unit 7, for splitting strategy determined by, the data file for downloading acquisition is reassembled into privacy
File.
As preferable, split cells 2 includes：
First splits subelement, for private file to be from first to last split as into several data according to pre-set space size
File, if the part finally divided is less than predetermined threshold value, using the part finally divided as a data file；Data file
Mark includes the mark of private file and the numbering of data file；
First coding unit, for the numbering of the mark of private file and its data file to be distributed into corresponding data text
Part marks as it；
Accordingly, assembled unit 7 is used for data file according to the sequential combination of the numbering of data file into private file.
In other preferred embodiments, split cells 2 includes：
Second splits subelement, for private file to be averagely split as to the data file of predetermined number, data file
Mark includes the information of mark and the data file correspondence position in private file of private file；
Second coding unit, for corresponding position to be believed in private file by the mark of private file and its data file
Breath distributes to corresponding data file as its mark；
Accordingly, assembled unit 7 is literary in privacy according to what is included in respective mark for will download the data file obtained
The sequential combination of positional information in part is into private file.
The invention provides a kind of cloud storage data-privacy protection device, the present invention includes will according to the default strategy that splits
The private file for uploading to cloud storage service device is needed to be split as several data files, private file carries with data file
There is mark；Upload mark and its corresponding data text that data file is stored to cloud storage service device and records private file
The mark and fractionation strategy of part are to locally；After the download instruction for receiving user's transmission, according to the mark of download instruction carrying
It is determined that corresponding private file；The mark and phase of the data file after private file fractionation are determined according to the mark of private file
The fractionation strategy answered；Corresponding data file is downloaded to from cloud storage service device according to the mark of identified data file
It is local；Strategy is split according to identified, the data file for downloading acquisition is reassembled into private file.Using the present invention,
Private file is split as several data files and uploads to cloud storage service device, situation about cracking is run into file, can only
A portion of private file is cracked, whole private files is avoided as far as possible and is cracked the problem of causing information leakage, have
Effect improves the security that private file stores on cloud storage service device.
A kind of cloud storage data-privacy guard method provided by the present invention and device are described in detail above.This
Apply specific case in text to be set forth the principle and embodiment of the present invention, the explanation of above example is only intended to
Help to understand method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls
Enter in the protection domain of the claims in the present invention.
Claims (6)
- A kind of 1. cloud storage data-privacy guard method, it is characterised in that including：According to the default strategy that splits the private file for uploading to cloud storage service device will be needed to be split as several data files, The private file carries mark with the data file；The data file is uploaded to be stored to the cloud storage service device and record the mark of the private file and its right The mark and fractionation strategy for the data file answered are to locally；After the download instruction for receiving user's transmission, corresponding private file is determined according to the mark that the download instruction carries；The mark of data file after the private file fractionation is determined according to the mark of the private file and torn open accordingly Divide strategy；According to the mark of identified data file from the cloud storage service device corresponding data file is locally downloading；Strategy is split according to identified, the data file for downloading acquisition is reassembled into the private file.
- 2. according to the method for claim 1, it is characterised in that described to need to upload to cloud according to the default strategy that splits The private file of storage server is split as several data files, and the private file carries mark with the data file The method of note specifically includes：The private file is from first to last split as several data files according to pre-set space size, finally divided If part is less than the predetermined threshold value, using the part finally divided as a data file；The data file Mark include the mark of the private file and the numbering of the data file；Strategy is split determined by the basis, the method that the data file for downloading acquisition is reassembled into the private file Including：By the data file according to the sequential combination of the numbering of the data file into the private file.
- 3. according to the method for claim 1, it is characterised in that described to need to upload to cloud according to the default strategy that splits The private file of storage server is split as several data files, and the private file carries mark with the data file The method of note specifically includes：The private file is averagely split as to the data file of predetermined number, the mark of the data file includes the privacy The mark of file and the data file corresponding positional information in the private file；Strategy is split determined by the basis, the method that the data file for downloading acquisition is reassembled into the private file Including：By the data file obtained of downloading according to the positional information in the private file included in respective mark Sequential combination is into the private file.
- A kind of 4. cloud storage data-privacy protection device, it is characterised in that including：Setting unit, strategy is split for being set for user；Split cells, if for being split as the private file for needing to upload to cloud storage service device according to the default strategy that splits Dry data file, the private file carry mark with the data file；Uploading unit, stored to the cloud storage service device for uploading the data file and record the private file Mark and its corresponding data file mark and split strategy to local；Receiving unit, for receive user transmission download instruction after, according to the download instruction carry mark determine phase The private file answered；Determining unit, for determining the mark of the data file after the private file fractionation according to the mark of the private file And corresponding fractionation strategy；Download unit, the mark for the data file determined by is from the cloud storage service device by corresponding data text Part is locally downloading；Assembled unit, for splitting strategy determined by, the data file for downloading acquisition is reassembled into the privacy File.
- 5. device according to claim 4, it is characterised in that the split cells includes：First splits subelement, for the private file to be from first to last split as described in several according to pre-set space size Data file, if the part finally divided is less than the predetermined threshold value, using the part finally divided as a number According to file；The mark of the data file includes the numbering of the private file and the numbering of the data file；First coding unit, for the numbering of the mark of the private file and its data file to be distributed into corresponding number Marked according to file as it；Accordingly, the assembled unit is used for the data file according to the sequential combination of the numbering of the data file into institute State private file.
- 6. device according to claim 4, it is characterised in that the split cells includes：Second splits subelement, for the private file to be averagely split as to the data file of predetermined number, the data text The mark of part includes mark and the data file corresponding positional information in the private file of the private file；Second coding unit, for the numbering of the private file and its data file to be corresponded in the private file The information of position distributes to corresponding data file as its mark；Accordingly, the assembled unit is used for the data file that obtains downloaded according to being included in respective mark described The sequential combination of positional information in private file is into the private file.
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| CN108667917B (en) * | 2018-04-24 | 2021-12-07 | 厦门集微科技有限公司 | Method and device for realizing data storage, computer storage medium and terminal |
| CN109583224A (en) * | 2018-10-16 | 2019-04-05 | 阿里巴巴集团控股有限公司 | A kind of privacy of user data processing method, device, equipment and system |
| CN115379441A (en) * | 2022-07-20 | 2022-11-22 | 安徽电信规划设计有限责任公司 | 5G signal transmission power limiting method and system |
| CN115379441B (en) * | 2022-07-20 | 2024-05-28 | 安徽电信规划设计有限责任公司 | 5G signal transmission power limiting method and system |
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