CN105893871A - Data safety protection method and device based on data partitioning - Google Patents
Data safety protection method and device based on data partitioning Download PDFInfo
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- CN105893871A CN105893871A CN201610188545.9A CN201610188545A CN105893871A CN 105893871 A CN105893871 A CN 105893871A CN 201610188545 A CN201610188545 A CN 201610188545A CN 105893871 A CN105893871 A CN 105893871A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6227—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database where protection concerns the structure of data, e.g. records, types, queries
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Abstract
The invention discloses a data safety protection method and device based on data partitioning. The method includes the steps that private data are extracted out of original data according to a preset private data extraction rule and partitioned into private data and non-private data; padding data are added to the private data, and encrypted data are obtained; a mapping table is generated according to the serial number of the private data, the padding data and the encrypted data; meanwhile, an index table is generated according to the serial number of the private data, nouns of the mapping table and original file names corresponding to the private data; an information safety card of the private data is generated according to the mapping table and the index table, and the information safety card of the private data is stored in a database according to preset private data storage strategies. According to the data safety protection method and device, the data are partitioned, the private data generate the mapping table and the index table, the information safety card of the private data is established, storage is conducted through different strategies, storage and reading efficiency is improved, and data portioning and encrypting difficulty is greatly simplified.
Description
Technical field
The present invention relates to technical field of data security, be specifically related to a kind of number based on data segmentation
According to safeguard method and device.
Background technology
Big data age, the storage of data, read-write, safety oneself become the great of common concern
Problem.Popularizing rapidly of the Internet so that data are no longer isolated, and data sharing becomes main
Stream, the rise of ecommerce, make problem of data safety highlight so that traditional safety management plan
Slightly receiving impact greatly, in the case of lacking protection, user stores on network and passes
, all there is the probability being tampered and revealing in defeated any information.High-tech crime, hacker enter
The event of invading takes place frequently, little to individual interest, receives serious infringement to national interests greatly.Data
Encryption technology is to solve information security issue, it is achieved data confidentiality takes precautions against effective and feasible doing
Method.Data encryption is generally divided into symmetric cryptography and asymmetric encryption two class, typical symmetric cryptography
There are DES, IDEA.Asymmetric cryptography uses PKI and private key encrypt respectively and decipher, and makes
Encryption key and decruption key are separated, and typical public key cryptography includes RSA, MH knapsack.
Data safety and information security have obtained national governments and have more and more paid attention to, and also put into quite a lot of
Reasearch funds, not only need protect economic information, and need protect personal information.
Existing data security protection method directly uses encryption technology to be encrypted data, and
Do not differentiate between different types of data, and encryption method is the most complicated.
Summary of the invention
Owing to existing data security protection method directly uses encryption technology to add data
Close, and do not differentiate between different types of data, and encryption method typically more challenge, this
A kind of data security protection method based on data segmentation of bright proposition and device.
First aspect, the present invention proposes a kind of data security protection method based on data segmentation,
Including:
According to default private data extracting rule, initial data extracts private data,
It is private data and non-private data by original data division；
Filling data are added to described private data, obtains encryption data；
Sequence number according to described private data, described filling data and encryption data, generate and map
Table；Simultaneously according to sequence number, the noun of described mapping table and the described privacy number of described private data
According to corresponding original document title, generate concordance list；
According to described mapping table and described concordance list, generate the information security card of private data, and
According to default private data storage strategy, the information security card of described private data is stored in number
According to storehouse.
Preferably, described according to described mapping table with described concordance list, generate the letter of private data
Breath safety card, and according to default private data storage strategy, by the information of described private data
After safety card is stored in data base, also include:
Information security card according to Raw Data Generation initial data；
According to default original data storage strategy, the information security card of described initial data is deposited
Enter data base.
Preferably, the original data storage strategy that described basis is preset, by described initial data
After information security card is stored in data base, also include:
The information security card of data is shared according to shared data genaration；
According to default shared data store strategy, the information security card of described shared data is deposited
Enter data base；
Wherein, described shared data include described non-private data and described encryption data.
Preferably, information security card includes: safety card numbering, Data Filename, data are in full
Digital digest and corresponding digital signature.
, described digital signature is provided by data set provider.
Second aspect, the present invention also proposes a kind of data security protecting dress based on data segmentation
Put, including:
Data segmentation module, for according to the private data extracting rule preset, at initial data
In extract private data, be private data and non-private data by original data division；
Data encryption module, for filling data being added to described private data, is added
Ciphertext data；
Table generation module, is used for sequence number, described filling data according to described private data and adds
Ciphertext data, generates mapping table；Simultaneously according to the sequence number of described private data, described mapping table
The original document title that noun is corresponding with described private data, generates concordance list；
Private data card generation module, for according to described mapping table and described concordance list, generates
The information security card of private data, and according to default private data storage strategy, by described hidden
The information security card of private data is stored in data base.
Preferably, also include:
Primary data card generation module, pacifies for the information according to Raw Data Generation initial data
Quan Ka；And according to default original data storage strategy, by the information security of described initial data
Card is stored in data base.
Preferably, also include:
Share data card generation module, for sharing the information peace of data according to shared data genaration
Quan Ka；And according to default shared data store strategy, by the information security of described shared data
Card is stored in data base；
Wherein, described shared data include described non-private data and described encryption data.
Preferably, information security card includes: safety card numbering, Data Filename, data are in full
Digital digest and corresponding digital signature.
Preferably, described digital signature is provided by data set provider.
As shown from the above technical solution, the present invention is by splitting data, to private data
Generation mapping table and concordance list, and set up the information security card of private data, by different plans
Slightly store, improve storage and the efficiency read, greatly simplify data segmentation and encryption
Difficulty.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area
From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to these
Figure obtains other accompanying drawing.
A kind of based on data segmentation the data that Fig. 1 provides for one embodiment of the invention are protected safely
The schematic flow sheet of maintaining method；
A kind of based on data segmentation the data that Fig. 2 provides for one embodiment of the invention are protected safely
The embodiment block architecture diagram of maintaining method；
A kind of based on data segmentation the data that Fig. 3 provides for one embodiment of the invention are protected safely
The information security card of maintaining method；
A kind of based on data segmentation the data that Fig. 4 provides for one embodiment of the invention are protected safely
The structural representation of protection unit.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of invention is further described.Hereinafter implement
Example is only used for clearly illustrating technical scheme, and can not limit this with this
Bright protection domain.
Fig. 1 shows a kind of based on data segmentation the data peace that one embodiment of the invention provides
The schematic flow sheet of full guard method, including:
The private data extracting rule that S1, basis are preset, extracts privacy number in initial data
According to, it is private data and non-private data by original data division；
S2, filling data are added in described private data, obtain encryption data；
S3, the sequence number according to described private data, described filling data and encryption data, generate
Mapping table；Simultaneously according to the sequence number of described private data, the noun of described mapping table and described hidden
The original document title that private data are corresponding, generates concordance list；
S4, according to described mapping table and described concordance list, generate the information security card of private data,
And according to default private data storage strategy, the information security card of described private data is stored in
Data base.
Wherein, described mapping table is made up of three parts, is respectively { sequence number, E [x], M [x] }.
The serial number that sequence number record raw information is extracted, correspondence after E [x] record raw information encryption
Information, the filling information that M [x] record raw information is corresponding；Described concordance list is made up of three parts,
It is respectively as follows: { sequence number, T [y], D [y] }.Serial number index corresponding relation, T [y] represents y
Individual mapping table name, D [y] represents the document name of y-th initial data.
The present embodiment, by splitting data, generates mapping table and index to private data
Table, and set up the information security card of private data, stored by different strategies, improve
Storage and the efficiency read, greatly simplify the difficulty of data segmentation and encryption.
As the alternative of the present embodiment, after S4, also include:
S5, information security card according to Raw Data Generation initial data；According to default original
Data store strategy, is stored in data base by the information security card of described initial data.
By different strategies, initial data is stored, improve storage and the effect read
Rate, greatly simplifies the difficulty of data segmentation and encryption.
Further, after S5, also include:
S6, basis are shared data genaration and are shared the information security card of data；Share according to default
Data store strategy, is stored in data base by the information security card of described shared data；
Wherein, described shared data include described non-private data and described encryption data.
By different strategies, shared data are stored, improve storage and the effect read
Rate, greatly simplifies the difficulty of data segmentation and encryption.
Specifically, information security card includes: safety card numbering, Data Filename, data are in full
Digital digest and corresponding digital signature.
By to the safety card numbering of different types of data, Data Filename, data numeral in full
Summary and corresponding digital signature set up information security card, provide a kind of safety to protect for privacy information
Barrier voucher, while improving storage efficiency, improves the safety of data.
Further, described digital signature is provided by data set provider.
Rivest, shamir, adelman can be used, use the PKI of data set provider to be encrypted, data
Supplier uses the private key of oneself to be decrypted, and is more convenient for using.
The present embodiment specifically includes that data splicing mechanism, information security card, AES sum
According to storehouse.Described data splicing mechanism refers to that designing a set of privacy information extracting rule storehouse realizes privacy
The extraction of information, splits data into initial data, non-private data the most again, shares data；
Described information security card refers to data to be carried out according to algorithm calculated to be had encryption and conciliates
The device of close function；Described AES can use rivest, shamir, adelman, uses data to provide
The PKI of person is encrypted, and data set provider uses the private key of oneself to be decrypted；Described data
Storehouse refers to the memory module for memory map assignments and concordance list etc..
The present embodiment can realize extraction and the encryption of privacy information, by privacy information correlative
Justice information is filled with, and has both maintained the safety of former data, has added again encrypted data
Intelligibility, thus preferably serve human's demand.
Below in conjunction with the accompanying drawings the present embodiment is described in further details.As in figure 2 it is shown, according to
Privacy information is separated by the rule in privacy information extracting rule storehouse with non-privacy information, will extract
The privacy information come is encrypted and stores, the method using data mask, uses relevant
Privacy information is filled with by semantic information, makes original information more intelligibility.Employing information
Safety card mechanism is respectively initial data, private data, shares a kind of safety guarantee of data offer
Voucher.Specifically can include following 6 steps:
A1, incoming initial data.Here initial data can be the number comprising privacy information
According to, it is also possible to it is the data not comprising privacy information.The form of data can be word, txt
Deng.
A2, utilize the priori of expert, provide the hidden of respective field according to different fields
Personal letter ceases, and designs a set of privacy information extracting rule storehouse, has had initial data and privacy information
Behind extracting rule storehouse, then realize the segmentation to initial data by data segmentation algorithm.
The encryption of A3, information and filling.It is non-right that the privacy information extracted according to step 2 is carried out
Claim encryption, the private data that those are extracted from initial data
P [1], P [2] ..., P [n] } obtaining after encryption E [1], E [2] ..., E [n] },
M [1], M [2] ..., M [n] be P [1], P [2] ..., P [n] corresponding to filling information,
That is: privacy information P [1] fills by information M [1] with semantic meaning, and privacy information P [2] uses
Information M [2] with semantic meaning is filled ..., privacy information P [n] is with having semantic meaning
Information M [n] fill.Wherein M [1], M [2] ..., M [n] } be P [1], P [2] ..., P [n] }
The information with certain semantic meaning corresponding in rule base.
A4, generation mapping table.Mapping table is made up of three parts, is respectively { sequence number, E [x], M [x] }.
The order that sequence number have recorded the privacy information being extracted in initial data is good.If sequence number is equal to 1 table
Show the privacy information being extracted at first.If entire chapter initial data has privacy information at 100
Need extraction, then maximum sequence number is equal to 100.E [x] is by after the encryption of the privacy information extracted
Information, M [x] is exactly the information being filled with the information extracted.
A5, one concordance list of generation.The structure of concordance list, it is made up of three parts, respectively
For: { sequence number, T [y], D [y] }.Wherein serial number the first group index corresponding relation.Wherein t [y] table
Show y-th mapping table database table name, such as: T [1] represents the data base of first mapping table
Table name word.D [y] represents the document name of y-th initial data (Word document), such as D [1]
Represent the document name of first initial data (Word document).
A6, generation information security card.In order to ensure the safety of data, we devise three kinds
The information security card of type, and be managed by information security management storehouse.
Embodiment shows the information security card of three kinds of data types.It is respectively as follows: " information peace
Full card-initial data ", " information security card-privacy information " and " information security card-share
Data ".
(1) information security card (initial data)
Information security card (initial data) is the initial data system being initially provided of by data set provider
The information security card made, its main purpose be for initial data provide a kind of safety guarantee with
Card, it comprises four parts, is respectively as follows: safety card numbering (initial data), initial data literary composition
Part name, initial data digital digest and digital signature (data set provider) thereof in full.Wherein should
The digital signature of part is that data set provider uses the private key of oneself that safety card is numbered (original number
According to), the literary composition that generates after digital digest is encrypted in full of raw data file name and initial data
Part.
(2) information security card (private data)
Information security card (private data) is from initial data guarantor of extraction after data are split
There is the information security card that the privacy information in data base is made.Its main purpose is for hidden
Private data provide a kind of safety guarantee voucher, and it comprises four parts, are respectively as follows: safety card numbering
(private data), private data filename, private data digital digest in full and numeral thereof are signed
Name (data set provider).Wherein the digital signature of this part is that data set provider uses oneself
Private key is to safety card numbering (private data), private data filename and private data number in full
The file that word summary generates after being encrypted.
(3) information security card (sharing data)
Information security card (share with data) is from initial data extraction non-after data are split
Private data and the information security of the Private Parts shared data creating after filling thereof
Card.Its main purpose is to provide a kind of safety guarantee voucher for shared data, and it comprises four parts,
It is respectively as follows: safety card numbering (sharing data), shares Data Filename, shared data in full
Digital digest and digital signature (data set provider) thereof.Wherein the digital signature of this part is several
Use the private key of oneself to safety card numbering (sharing data) according to supplier, share data file
The file that name and shared data full text digital digest generate after being encrypted.
The present embodiment according to the rule in privacy information extracting rule storehouse by privacy information and non-privacy
Information separates, and the privacy information extracted is encrypted and is stored, and uses data
The method of shielding, uses relevant semantic information to be filled with privacy information, makes original information more
Tool intelligibility.Simultaneously use information security card mechanism be respectively initial data, private data,
Share data and a kind of safety guarantee voucher is provided, privacy information and non-privacy information are carried out point
Cut, stored by different strategies, improve storage and the efficiency read, greatly simplify
Data segmentation and the difficulty encrypted.
Fig. 4 shows a kind of based on data segmentation the data security protecting that the present embodiment provides
Device, including:
Data segmentation module 11, for according to the private data extracting rule preset, original
Extracting data goes out private data, is private data and non-private data by original data division；
Data encryption module 12, for filling data are added to described private data,
To encryption data；
Table generation module 13, for according to the sequence number of described private data, described filling data
And encryption data, generate mapping table；Simultaneously according to the sequence number of described private data, described mapping
The original document title that the noun of table is corresponding with described private data, generates concordance list；
Private data card generation module 14, is used for according to described mapping table and described concordance list,
Generate the information security card of private data, and according to default private data storage strategy, by institute
The information security card stating private data is stored in data base.
Alternatively, also include:
Primary data card generation module, pacifies for the information according to Raw Data Generation initial data
Quan Ka；And according to default original data storage strategy, by the information security of described initial data
Card is stored in data base.
Further, also include:
Share data card generation module, for sharing the information peace of data according to shared data genaration
Quan Ka；And according to default shared data store strategy, by the information security of described shared data
Card is stored in data base；
Wherein, described shared data include described non-private data and described encryption data.
Specifically, information security card includes: safety card numbering, Data Filename, data are in full
Digital digest and corresponding digital signature.
Further, described digital signature is provided by data set provider.
Data security protecting device based on data segmentation described in the present embodiment may be used for holding
Row said method embodiment, its principle is similar with technique effect, and here is omitted.
In the description of the present invention, illustrate a large amount of detail.It is to be appreciated, however, that this
Inventive embodiment can be put into practice in the case of not having these details.At some examples
In, it is not shown specifically known method, structure and technology, in order to not fuzzy to this specification
Understanding.
Claims (10)
1. a data security protection method based on data segmentation, it is characterised in that including:
According to default private data extracting rule, initial data extracts private data,
It is private data and non-private data by original data division；
Filling data are added to described private data, obtains encryption data；
Sequence number according to described private data, described filling data and encryption data, generate and map
Table；Simultaneously according to sequence number, the noun of described mapping table and the described privacy number of described private data
According to corresponding original document title, generate concordance list；
According to described mapping table and described concordance list, generate the information security card of private data, and
According to default private data storage strategy, the information security card of described private data is stored in number
According to storehouse.
Method the most according to claim 1, it is characterised in that reflect described in described basis
Firing table and described concordance list, generate the information security card of private data, and according to default privacy
Data store strategy, after the information security card of described private data is stored in data base, also wraps
Include:
Information security card according to Raw Data Generation initial data；
According to default original data storage strategy, the information security card of described initial data is deposited
Enter data base.
Method the most according to claim 2, it is characterised in that described basis is preset
Original data storage strategy, after the information security card of described initial data is stored in data base,
Also include:
The information security card of data is shared according to shared data genaration；
According to default shared data store strategy, the information security card of described shared data is deposited
Enter data base；
Wherein, described shared data include described non-private data and described encryption data.
Method the most according to claim 3, it is characterised in that information security card includes:
Safety card numbering, Data Filename, data digital digest and the digital signature of correspondence in full.
Method the most according to claim 4, it is characterised in that described digital signature by
Data set provider provides.
6. a data security protecting device based on data segmentation, it is characterised in that including:
Data segmentation module, for according to the private data extracting rule preset, at initial data
In extract private data, be private data and non-private data by original data division；
Data encryption module, for filling data being added to described private data, is added
Ciphertext data；
Table generation module, is used for sequence number, described filling data according to described private data and adds
Ciphertext data, generates mapping table；Simultaneously according to the sequence number of described private data, described mapping table
The original document title that noun is corresponding with described private data, generates concordance list；
Private data card generation module, for according to described mapping table and described concordance list, generates
The information security card of private data, and according to default private data storage strategy, by described hidden
The information security card of private data is stored in data base.
Device the most according to claim 6, it is characterised in that also include:
Primary data card generation module, pacifies for the information according to Raw Data Generation initial data
Quan Ka；And according to default original data storage strategy, by the information security of described initial data
Card is stored in data base.
Device the most according to claim 7, it is characterised in that also include:
Share data card generation module, for sharing the information peace of data according to shared data genaration
Quan Ka；And according to default shared data store strategy, by the information security of described shared data
Card is stored in data base；
Wherein, described shared data include described non-private data and described encryption data.
Device the most according to claim 8, it is characterised in that information security card includes:
Safety card numbering, Data Filename, data digital digest and the digital signature of correspondence in full.
Device the most according to claim 9, it is characterised in that described digital signature by
Data set provider provides.
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