CN106503574A - Block chain safe storage method - Google Patents
Block chain safe storage method Download PDFInfo
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- CN106503574A CN106503574A CN201610823105.6A CN201610823105A CN106503574A CN 106503574 A CN106503574 A CN 106503574A CN 201610823105 A CN201610823105 A CN 201610823105A CN 106503574 A CN106503574 A CN 106503574A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003860 storage Methods 0.000 title abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000006870 function Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 6
- 241001269238 Data Species 0.000 description 4
- 238000000586 desensitisation Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012384 transportation and delivery Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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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
- G06F16/11—File system administration, e.g. details of archiving or snapshots
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
Abstract
The invention provides a block chain safe storage method, which enables each Client to have a name node NameNode, greatly improves the safety of data storage of a big data platform, effectively avoids the pressure brought by a centralized server through a decentralized design, and shares the functions of the central server together through the whole private block chain network; the DataNode of each data block of the Hadoop is encrypted, so that the safety of each data in the big data is fully guaranteed; and a mechanism for storing and managing data of the large data platform is improved, a single mode depending on a central node is converted into a network environment commonly maintained by all participants, and the off-center design is really realized. Through the setting of PKI and user authority, the defect of simple and extensive plaintext storage of important data is overcome, and the process and the method for safe encrypted storage are deepened.
Description
Technical field
The present invention relates to cloud computing, big data field, in particular it relates to the area that block chain technology is stored with big data safely
Block chain method for secure storing.
Background technology
Technical scheme in existing Hadoop big datas, is all based on HDFS distributed file system data storages, center
Node is concentrated on several servers such as NameNode, and the control of Centroid strictly limits the security of data；Specifically
The storage of the DataNode of each data block, is not encrypted；Traditional storage scheme flow process is simple, only stresses to count
According to storage, do not take into full account the security of data.
Through retrieval, following coordinate indexing result is found：
Coordinate indexing result 1：
Application Number (patent)：201510955506.2；Title：A kind of block chain tracing method
The patent document is related to the tracing method on internet, there is provided a kind of block chain tracing method, described
Method comprises the steps：Block catenary system receives a certain behind the block chain address of tracing, from the beginning of current block, presses
Whole block chain is traveled through according to the order that block is produced；The block catenary system according to traversing result, build described in treat tracing
Block chain address income spanning tree and expenditure spanning tree, the assets transfer for obtaining the block chain address for treating tracing goes through
The Records of the Historian is recorded.The patent document claims to will be helpful to the illegal usage behavior of tracking block catenary system and illegal user, it is to avoid block
Catenary system becomes the instrument utilized by lawless person, and the broader applications for block chain technology provide basis, and main application is available
In audit function.
Technical essential compares：
1. block chain tracer technique：The patent document mainly by by block chain address to be followed the trail of take in spanning tree and
Expenditure spanning tree.The present invention mainly carries out matching inquiry by user.
2. user management Center Technology：The present invention manages each node users first by designing user administrative center, its
Secondary deeply manage the corresponding public and private key of each user in detail.The patent document does not account for this method.
Coordinate indexing result 2：
Application Number (patent)：201610100747.3；Title：The packing storage method of block chain
The patent document provides a kind of packing storage method of block chain, when there are many expenditures a public key address, it is necessary to
Whether checking remaining sum is enough successively, will pay interval classification of the address by address here, and can be divided with different threads or process
Other checkout transaction, it can be ensured that same expenditure address is less than remaining sum, the remaining sum that each address section gathering increases are sent to phase again
The server that the address section that answers is located, counts last remaining sum again.During data storage, for overcoming the limit for writing disk speed
System, capable of circulation write disk to multiple servers successively, the number of block sequence tile height and server can be made division delivery and be reflected
Penetrate, or using block height with the corresponding relation of server as metadata, give special meta data server to manage, access
During data, meta data server is accessed first, obtain the highly corresponding server of block, the data volume for writing disk every time is set, can
So as to write the moment that disk terminates every time and be not more than and take turns to the moment for writing disk next time.
Technical essential compares：
1. merging data bag writes bill：The patent document lays particular emphasis on to merge multiple block chain billing datas and writes
Enter, using multi-thread concurrent.The present invention stresses block chain technology and big data technology is combined, and reaches decentralization, and safety
The purpose of encryption storage.
2. incremental data writes Map and Reduce processes：The starting point of the patent document emphasis is essentially consisted in by calculating
Block highly does the mapping of division delivery and goes to write data.And the present invention is mainly the mapping mechanism by using Map and Reduce,
Same data are extracted, write identical data is reduced.
Coordinate indexing result 3：
Prior art literature：Title《Block chain：New Economy blueprint and introduction》, publish from nova publishing house, ISBN：
9787513319720.
Technical essential compares：
1. big data memory technology：It is not described in big data technology to think in the design of block chain in the prior art document
If embodying and using in thinking.
2. KMC's designing technique：Main case background in the prior art document, is with block chain technology
With the management of electronic money, and block chain technology and market, economy, the connected applications of currency, block chain is deeply explained
In technology, how encipherment scheme, KMC the technical scheme such as design.
Content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of block chain method for secure storing.The present invention
The technical problem for mainly solving is embodied in following any point：
1) data storage scheme that controls by Centroid of big data Hadoop is solved, it is to avoid because of discrete units data
The collapse at center, and proceeding for overall business is affected, the storage scheme of invention decentralization, instead of using the base of Hadoop
It is uniformly controlled in Centroid NameNode；
2) big data platform is entered by Map and Reduce due to having merged all kinds of sensitive data information of magnanimity, data storage
Row stripping and slicing stores and is stored in clear, and the intrinsic safety of data can not carry out safeguard protection and desensitization, using the present invention to every
One DataNode data blocks, carry out the asymmetric arithmetic based on PKI, mainly use SHA256 AESs, to each block number evidence
Block be encrypted desensitization after store, it is ensured that only have private key I, can just have obtain data content authority；
3) by block chain technology and big data technology deep understanding, the present invention realizes being based on area in big data field
The storage scheme for going center words of block chain technology, improves conventional data storage, flow process and mentality of designing that big data is stored, fully
Consider the security of data storage.
According to the present invention provide a kind of block chain method for secure storing, including：
Make each client Client that there is name node NameNode, wherein, the name node NameNode
For writing data in data block Block of the back end DataNode in block chain.
Preferably, including：
When client Client submit to write data request when, by block chain all blocks node competition incited somebody to action
Data to be written are written to the write authority of new data block, obtain the block node with write authority, should have write power
The block node of limit generates public key and private key by KMC, and public key is used for encrypting data block to be written, and private key has
The block node oneself with write authority is preserved.
Preferably, including：
When there is the block node of write authority itself to need the data block for reading this node for this, using the private key of oneself
Directly decryption obtains clear data；When other nodes need the data for reading the block node with write authority, by this
After there is the block node of write authority data block is decrypted by private key, after being encrypted using the public key of other nodes
It is sent to other nodes.
Preferably, including：
The name node NameNode of client gets to back end DataNode and writes after the authority of data, passes through
Rivest, shamir, adelman, combines to data block Block of each write back end DataNode and initiates writing data blocks
The public key of the node of Block is encrypted；When reading the data of back end DataNode for client, by during with encryption
The corresponding private key of the public key of generation is decrypted, and realizes the acquisition operation of chain block number evidence in area's in data block Block.
Preferably, including：
By multiple KMCs, strange land is separately positioned on, forms distributed key management center；Distributed cipher key pipe
Reason center is used for managing and generating public and private key pair, according to each client to the key of public and private key to being managed, public and private
Key is mated with user side.
Preferably, including：
Set up distributed user management center；Distributed user management center is used for authority and attribute to client
It is managed, manages the client on block chain link point, distribute corresponding public and private key according to client, when client obtains difference
On node during block data information, first check the authority of the client of corresponding block, after getting the nod by place block chain section
Point, recognizes the client of each original write data, and so as to initiate the client to original write encryption data, consulting is obtained
The link of encryption data.
Preferably, including：
Client Client is made to open Hadoop distributed file systems HDFS when data are write, by title section
Point NameNode establishment files open existing file, by data block Block of file write data node DataNode,
And carry out confirming that character ACK bags confirm, Hadoop distributed file systems HDFS, client Client is closed after success is confirmed
Notify name node NameNode to complete the write to data block Block to preserve；Prompting if confirmation is unsuccessful confirms failure.
Preferably, including：
By Network Synchronization mechanism, calculate hash value in a network is carried out the name node NameNode of each client
Competition obtains the authority of new data block Block of write.
Compared with prior art, the present invention has following beneficial effect：
1st, the security of big data platform data storage is substantially increased, collection effectively prevent by the design of decentralization
The pressure that middleization server brings, the function of central server is shared jointly by entirely privately owned block chain network.
2nd, the DataNode to each data block of Hadoop, carries out adding based on SHA256 secure Hash hashing algorithms
Close, using based on PKI mechanism asymmetrical encryption approach, fully ensure the security of each data in big data.
3rd, the mechanism of big data platform storage and management data is improved, from the single mode for relying on Centroid, is turned
The network environment that is safeguarded by all participants jointly is melted into, Center is truly realized.By setting for PKI and user right
Fixed, breach to significant data simply extensive stored in clear the drawbacks of, the flow process and method of in-depth safety encryption storage.
Description of the drawings
The detailed description that non-limiting example is made with reference to the following drawings by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Big data block chain storage method figures of the Fig. 1 for decentralization.
Fig. 2 encrypts safely storage method figure for the block of big data memory node.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
According to the present invention provide block chain method for secure storing, including：
Based on the decentralization storage method of block chain technology, each client uses an independent program, for example
By taking bit coin as an example, user safeguards the wallet and transaction record of oneself.The terminal of a digging ore deposit program is additionally needed, by real-time
Competition calculates the transaction billing data for obtaining 10 minutes, generates a block, carries out the whole network broadcast, press this block again afterwards
According to hash value, it is written in the chained list of block chain.
Big data Hadoop stores user data by HDFS distributed file systems, and client Client is in write data
When open Hadoop distributed file systems HDFS, by NameNode establishment files or open existing file, afterwards
The DataNode nodes of concrete write data are found, writing data blocks Block carries out the confirmation of ACK bags, closes after confirming success
HDFS, client finally notify NameNode to complete the write preservation to data block Block.
By big data Hadoop large data center node serve processing routine NameNode module, program update is carried out, is repaiied
Make the client-side program based on block chain technical scheme into, reach the purpose of decentralization, so as to each client has one
Set NameNode processing routines.
Based on the big data NameNode client-side program of block chain technology, quilt on each client node of internet
Fair play, when the data is written, each NameNode client node is calculated in a network by Network Synchronization mechanism
Hash value is at war with and obtains the right of the new DataNode of write.
The NameNode nodes of client are converged and are write after the authority of data, by PKI asymmetric encryption to DataNode
Algorithm SHA256 (256 secure Hash hashing algorithms), to each write DataNode Block carry out with reference to public key plus
Close, when DataNode node datas are read for client, solved by the corresponding private key of the public key generated during with encryption
Close, realize the acquisition operation of Block areas chain block number evidence.
KMC, sets up distributed key management center, management and generation public and private key pair, coordinates NameNode
In the block of newly-increased block chain, it is encrypted with public key.
User management center, manages the user on block chain link point, distributes corresponding private key according to user, allows user obtaining
Take some block data when, oneself corresponding private key is taken according to the authority of user itself first, with the private key solution of oneself
The DataNode data blocks of close corresponding public key encryption.
More specific detail is carried out to the present invention below.
Code is realized by changing the client network node of block chain technology, is realized several to relying in big data platform
Name node NameNode writes data to the mode of back end DataNode and is improved.NameNode and block chain technology
Each node is integrated so that NameNode is write the data block of DataNode by centralization mode, changes over each visitor
Family end node all goes the data block for writing the DataNode in block chain with NameNode, it is achieved thereby that decentralization sets
Meter.
The realization of writing data blocks DataNode encryption protecting methods.When client Client submits the request of write data to
When, the right for obtaining the new data block of write by all of block node serve routine competition in block chain obtains write authority
Node, public key and private key are generated by PKI KMCs, public key is used for encrypting data block to be written, private key oneself
Preserve.When itself needs the data block for reading this node, acquisition clear data is directly decrypted using the private key of oneself；When which
When the user of his node needs the data for reading this node, after being decrypted to data block by private key by this node, using please
The public key of the person of asking is encrypted, and is sent to requestor afterwards.
The NameNode nodes of client are got to DataNode and are write after the authority of data based on block chain technology,
By PKI rivest, shamir, adelman SHA256 (256 secure Hash hashing algorithms), to each write DataNode's
Block combines the node public key of initiation writing data blocks and is encrypted；When DataNode node datas are read for client,
It is decrypted by the corresponding private key of the public key generated during with encryption, realizes the acquisition operation of Block areas chain block number evidence.
The realization of KMC, is had in the key management of master-slave back-up function based on many sets of kerbos technology deployment
The heart, for the quality and security of cipher key service, by multiple KMCs, being arranged on strange land is carried out.After being successfully established
Distributed key management center, management and generation public and private key pair, according to each user node to the key of public and private key to entering
Row management, public and private key must be mated with specific user.
The realization of user's (client) administrative center, sets up distributed user management center, authority and the user to user
Attribute is managed, and manages the user on block chain link point, distributes corresponding public and private key according to user, when user obtains different sections
On point during block data information, it is necessary to first check the user right of corresponding block, after getting the nod by place block chain node,
The user of each original write data is recognized, so as to initiate the user to original write encryption data, consulting obtains encryption number
According to link.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or change, this not shadow
Ring the flesh and blood of the present invention.In the case where not conflicting, feature in embodiments herein and embodiment can any phase
Mutually combine.
Claims (8)
1. a kind of block chain method for secure storing, it is characterised in that include：
Make each client Client that there is name node NameNode, wherein, the name node NameNode is used for
Write data in data block Block of the back end DataNode in block chain.
2. block chain method for secure storing according to claim 1, it is characterised in that include：
When client Client submits the request of write data to, will be to be written by the node competition acquisition of all blocks in block chain
Enter the write authority that data are written to new data block, obtain the block node with write authority, there should be write authority
Block node generates public key and private key by KMC, and public key is used for encrypting data block to be written, and private key has and has
The block node oneself of write authority is preserved.
3. block chain method for secure storing according to claim 2, it is characterised in that include：
When there is the block node of write authority itself to need the data block for reading this node for this, the private key using oneself is direct
Decryption obtains clear data；When other nodes need the data for reading the block node with write authority, had by this
After the block node of write authority is decrypted to data block by private key, send after being encrypted using the public key of other nodes
Give other nodes.
4. block chain method for secure storing according to claim 1, it is characterised in that include：
The name node NameNode of client gets to back end DataNode and writes after the authority of data, by non-right
Claim AES, data block Block of each write back end DataNode is combined and initiates writing data blocks Block's
The public key of node is encrypted；When reading the data of back end DataNode for client, by generated during with encryption
The corresponding private key of public key is decrypted, and realizes the acquisition operation of chain block number evidence in area's in data block Block.
5. block chain method for secure storing according to claim 1, it is characterised in that include：
By multiple KMCs, strange land is separately positioned on, forms distributed key management center；In distributed key management
The heart be used for manage and generate public and private key pair, according to each client to the key of public and private key to being managed, public and private key with
User side is mated.
6. block chain method for secure storing according to claim 1, it is characterised in that include：
Set up distributed user management center；Distributed user management center is used for the authority to client and attribute to be carried out
Management, manages the client on block chain link point, distributes corresponding public and private key according to client, when client obtains different nodes
During upper block data information, first check the authority of the client of corresponding block, after getting the nod by place block chain node, distinguish
Know the client of each original write data, so as to initiate the client to original write encryption data, consulting obtains encryption
The link of data.
7. block chain method for secure storing according to claim 1, it is characterised in that include：
Client Client is made to open Hadoop distributed file systems HDFS when data are write, by name node
NameNode establishment files open existing file, by data block Block of file write data node DataNode, and
Carry out confirming that character ACK bags confirm, close Hadoop distributed file systems HDFS after success is confirmed, client Client is led to
Know that name node NameNode completes the write to data block Block and preserves；Prompting if confirmation is unsuccessful confirms failure.
8. block chain method for secure storing according to claim 2, it is characterised in that include：
The name node NameNode of each client is calculated hash value in a network and is at war with by Network Synchronization mechanism
Obtain the authority of new data block Block of write.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823105.6A CN106503574B (en) | 2016-09-13 | 2016-09-13 | Block chain safe storage method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823105.6A CN106503574B (en) | 2016-09-13 | 2016-09-13 | Block chain safe storage method |
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| Publication Number | Publication Date |
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| CN106503574A true CN106503574A (en) | 2017-03-15 |
| CN106503574B CN106503574B (en) | 2019-11-05 |
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| CN106921677A (en) * | 2017-04-20 | 2017-07-04 | 陈少峰 | A kind of multiple encryption system of block chain houseclearing |
| CN107122682A (en) * | 2017-04-20 | 2017-09-01 | 杭州铜板街互联网金融信息服务有限公司 | The data processing method and system stored based on block chain |
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| CN109347948A (en) * | 2018-10-15 | 2019-02-15 | 杭州安恒信息技术股份有限公司 | A kind of big data tamper resistant method and system based on block chain technology |
| CN109361663A (en) * | 2018-10-10 | 2019-02-19 | 中航信托股份有限公司 | A kind of correlation technique, system and relevant apparatus accessing encryption data |
| CN109450996A (en) * | 2018-10-25 | 2019-03-08 | 国信优易数据有限公司 | A kind of data cochain management method, device, equipment and block catenary system |
| CN109491996A (en) * | 2018-09-27 | 2019-03-19 | 上海点融信息科技有限责任公司 | For the block generation method of block chain network, block data access method, calculate equipment, storage medium |
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