CN109067849A - Method of data synchronization based on block - Google Patents
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- CN109067849A CN109067849A CN201810758898.7A CN201810758898A CN109067849A CN 109067849 A CN109067849 A CN 109067849A CN 201810758898 A CN201810758898 A CN 201810758898A CN 109067849 A CN109067849 A CN 109067849A
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- 238000010276 construction Methods 0.000 claims description 5
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Classifications
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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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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- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The present invention provides a kind of method of data synchronization based on block, this method comprises: the first node in publicly-owned catenary system receives new block data when there are new transaction data；Indicate that the summary info of new block data is stored in respective new block and cached by other any nodes in publicly-owned catenary system.The invention proposes a kind of method of data synchronization based on block, realize the synchronous verifying of the data between block using publicly-owned chain own system, and quickly correct mistake existing for block data.
Description
Technical field
The present invention relates to block chain, in particular to a kind of method of data synchronization based on block.
Background technique
Publicly-owned chain technology data block replaces dependence of the current internet to central server, so that the change of all data
More or trading item is all recorded simultaneously on multiple account book nodes.Existing publicly-owned chain is the extension side along publicly-owned chain
To sequentially generating new block, and meet synchronous verifying between block, the data in block prevented to be maliciously tampered.When there is industry
Business trade when summarizing, then the service request need the external node except publicly-owned chain node to vote for could be into
Row；And the response of external node may slow down and publicly-owned chain internal node can suspend.In addition, in some cases, when publicly-owned
The block data in some block on chain is implicitly present in mistake, if modified by force to the data, necessarily causes publicly-owned
The synchronous verifying of chain does not pass through, and causes the contradiction between the verifying synchronous with publicly-owned chain of modification block data.
Summary of the invention
To solve the problems of above-mentioned prior art, the invention proposes a kind of data side of synchronization based on block
Method, comprising:
When there are new transaction data, the first node in publicly-owned catenary system receives new block data；
Indicate that the summary info of new block data is stored in respective new block by other any nodes in publicly-owned catenary system
Caching.
Preferably, the first node receives new block data, further comprises:
First node caches the new block of new block data deposit first node, and sends number of deals to other T-1 nodes
It is requested according to updating.
Preferably, it includes the new block data in request that the transaction data, which updates,；The transaction data updates request and is used for
Indicate that the summary info of new block data is stored in respective new block and cached by any of other T-1 nodes node.
Preferably, other any nodes in the publicly-owned catenary system are respective by the summary info deposit of new block data
New block caching further comprises:
When the quantity of the summary info of new block data reaches preset quantity in the new block caching of node, according to default
The difference binarization of binarization rule handle N number of new block data, obtain the corresponding N number of word of N number of new block data
Information is saved, N is the new block data bulk obtained.
Preferably, other any nodes in the publicly-owned catenary system are respective by the summary info deposit of new block data
New block caching further comprises:
Reach preset time constantly in the time interval away from last time construction new block, according to preset binarization rule point
Other binarization handles N number of new block data, obtains the corresponding N number of byte information of N number of new block data, N is acquired
New block data quantity.
The present invention compared with prior art, has the advantage that
The invention proposes a kind of method of data synchronization based on block, realized between block using publicly-owned chain own system
The synchronous verifying of data, and quickly correct mistake existing for block data.
Detailed description of the invention
Fig. 1 is the flow chart of the method for data synchronization according to an embodiment of the present invention based on block.
Specific embodiment
Retouching in detail to one or more embodiment of the invention is hereafter provided together with the attached drawing of the diagram principle of the invention
It states.The present invention is described in conjunction with such embodiment, but the present invention is not limited to any embodiments.The scope of the present invention is only by right
Claim limits, and the present invention covers many substitutions, modification and equivalent.Illustrate in the following description many details with
Just it provides a thorough understanding of the present invention.These details are provided for exemplary purposes, and without in these details
Some or all details can also realize the present invention according to claims.
An aspect of of the present present invention provides a kind of method of data synchronization based on block.Fig. 1 is according to embodiments of the present invention
The method of data synchronization flow chart based on block.
Publicly-owned catenary system provided by the invention includes multiple publicly-owned chain nodes, the system for forming a decentralization.It is writing
When entering transaction data, any node in multiple nodes (being set as T) of system is received into new block data as first node；It is first
Node caches the new block of new block data deposit first node, and sends transaction data to other T-1 nodes and update request；
It includes the new block data in request that transaction data, which updates,；The transaction data updates request and is used to indicate in other T-1 nodes
The summary info of new block data is stored in respective new block and cached by any one node, i.e., in other T-1 nodes
Any node obtains new block data therein and is stored in respective new block caching after receiving transaction data and updating request.
By the above process, the publicly-owned chain node of each of system all has received new block data.
Specifically, in new block data writing process, for any node in T node of publicly-owned catenary system:
1.1: obtaining N number of new block data；Binarization, which is distinguished, according to preset binarization rule handles N number of new block
Data obtain the corresponding N number of byte information of N number of new block data.
1.2: construction new block, new block includes transaction data package and block metadata information；In block metadata information
The block metadata information digest value of preamble block in publicly-owned chain including node；Preamble block be publicly-owned chain most long-chain in most
The block being newly added.In publicly-owned catenary system of the invention, T node respectively possesses the publicly-owned chain of intra-node, intra-node
Each block is serially connected by pointer, that is, preamble block block metadata information digest value in publicly-owned chain.
1.3: being determined from the new block that T node generates by common recognition algorithm and meet the common recognition block of consensus rules and will be total to
Know block and publicly-owned chain is added.Preferably, the quantity of the summary info of new block data reaches default in the new block caching of node
When quantity, step 1.1 is executed；Preferably, when the time interval away from last time construction new block reaches preset time, step is executed
1.1。
It further include the metadata of the corresponding N number of summary info of N number of new block data in the block metadata information
Digest value.Each new block data are owned by the summary info of oneself, and specific calculating process is first by new block data binary system
Change, obtain the byte information of new block data, then hash operations are carried out to byte information, obtains the abstract letter of new block data
Breath.Metadata digest value can be used in the synchronous verifying of data, and whether the transaction data package for verifying block is tampered.
Preferably, in the publicly-owned chain of intra-node in store new block data byte information, block metadata information is simultaneously
Binarization type corresponding to binarization rule is recorded, in the synchronous verifying of data, the node of publicly-owned catenary system
The primitive form of data in block is obtained according to byte information and binarization rule.
In order in guarantee system publicly-owned chain it is consistent, the block metadata information further includes random verification code, is tested at random
Card code is for the determination in algorithm of knowing together to common recognition block.Each of T node node is in building transaction data package and area
After other parts in block metadata information, multiple random verification codes are attempted, the change of random verification code directly results in new block
Block metadata information digest value variation, when the block metadata information digest value of either block meets preset quantity first
Preceding n bit when being 0, new block which construct will be broadcasted other into publicly-owned catenary system as block of knowing together
Node.Other nodes stop building new block after receiving common recognition block broadcast, and publicly-owned chain is added in common recognition block.Preferably,
Preset quantity n is adjusted according to the average time-consuming periodically dynamic for generating new block.It is determined from the new block that T node generates
It is N number of from include in removal common recognition block in the new block of node caching for any node in T node after common recognition block
N number of new block data, prevent from being repeatedly written corresponding to byte information.
Preferably, determine that publicly-owned chain is added in the common recognition block for meeting common recognition algorithmic rule from the new block that T node generates
Later, further includes: for each byte information in common recognition block, obtain the abstract letter of new block data corresponding with byte information
Breath；The summary info of new block data and the corresponding addressing information of new block data are stored in local address storehouse；Addressing
Information includes the position ID of byte information corresponding to new block data within a block.Each node in publicly-owned catenary system will
The addressing information of data in block is stored in local address storehouse, and user need to only provide New Transaction in the synchronous verifying of progress data
The summary info of data.Preferably, after publicly-owned chain is added in the common recognition block for meeting common recognition algorithmic rule, it can also judge itself
Whether be know together block in any byte information first node, if so, exporting the addressing information of the summary info to user.With
Family is carrying out that the summary info and addressing information of New Transaction data can be provided simultaneously when data are synchronous to be verified, and it is same can to accelerate data
The efficiency of step card.
To avoid the Hash collision of single algorithm from attacking, the present invention is calculating separately N number of new block according to N number of byte information
It further include being divided to N number of summary info after the summary info of data；The digest value of each division is calculated, N number of pluck is obtained
Want the second level digest value of information；Second level digest value is continued to divide, and the step of returning to the digest value for calculating each division until
Obtain metadata digest value.And when calculating the digest value of each division, first according to the centre of the regular computation partition of the first hash
Digest value；The digest value of intermediate digest value is calculated as the digest value divided further according to the second hash rule.Using above-mentioned preferred
It makes a summary provided by embodiment value calculating method, the Hash collision that can take precautions against single algorithm attacks and exports that length is shorter to pluck
It is worth.
The block data update method according to provided by above-described embodiment, following embodiment of the present invention further provide for one kind
The synchronous verification method of the data of corresponding above-mentioned update method carries out the synchronous verifying of data to the data for having been written into publicly-owned chain, including
Following steps:
The summary info that node obtains New Transaction data is initiated in synchronous verifying, and it is T node that node is initiated in synchronous verifying
Any node；
Determine whether each block includes the corresponding byte information of summary info from publicly-owned chain；
Each block in publicly-owned chain includes transaction data package and block metadata information；It include each new in transaction data package
The corresponding byte information of transaction data；The block metadata information of preamble block in block metadata information including block
Digest value；
If confirming that New Transaction data synchronize there are the corresponding byte information of summary info in publicly-owned chain and being verified.
Wherein, any node in T node of publicly-owned catenary system all can serve as synchronous verifying and initiate node to be user
There is provided data the synchronous service for checking credentials.The summary info that the New Transaction data that node obtains are initiated in synchronous verifying can be direct by user
It provides, the New Transaction data that can also be provided according to user, which calculate, to be obtained.And it synchronizes verifying and initiates in the publicly-owned chain of node traverses respectively
Summary info corresponding to the byte information that block is included is believed with the abstract of the New Transaction data of receiving again after obtaining digest value
Breath compares.It is highly preferred that node is initiated in synchronous verifying is stored in advance local address storehouse；It include the publicly-owned chain in local address storehouse
The addressing information of summary info corresponding to byte information in each block, synchronous verifying initiate node and inquire public affairs by addressing information
The summary info one for the New Transaction data for thering is summary info corresponding to the byte information of chain specific position whether to provide with user
It causes.Then, the byte information of the corresponding New Transaction data of addressing information is determined from publicly-owned chain；According to the byte of New Transaction data
The summary info of information calculating New Transaction data；When the summary info of New Transaction data is consistent with the summary info of New Transaction data
When, determine that there are the corresponding byte informations of summary info in publicly-owned chain.
When synchronous verifying initiation node provides data and synchronizes the service for checking credentials, further comprise, in the first node of publicly-owned chain
Place creates intelligent contract, and local address storehouse is provided with access permission of other T-1 nodes to intelligent contract, access permission
Including reading license and writing license.By this method, private data can be managed by intelligent contract, configured corresponding access and permitted
It can.Then intelligent contract is encrypted using public key at first node, and includes in first node by encrypted intelligent contract
In the block data at place.The other nodes that can be then sent on publicly-owned chain.Guarantee intelligent contract with ciphertext shape by this method
Formula is stored on publicly-owned chain, and all nodes can back up, and there is no the limitation bring backup risks because of number of nodes.
Public key is distributed to other T-1 nodes of publicly-owned chain according to local address storehouse at first node, then by block counts
According to being sent to other T-1 nodes.Preferably, receive public key and block data at other T-1 nodes, and using public key from
Encrypted intelligent contract is decrypted in block data, to create decrypted intelligent contract.Or according to decrypted intelligent contract
To execute transaction.
By this method, intelligent contract is created at first node and includes the area at first node by encrypted intelligent contract
After block number is in, other nodes on publicly-owned chain all can receive block data, that is, realize that all nodes can synchronize, but only gather around
Having the node of the public key of the intelligence contract can just be decrypted, and execute corresponding transaction, to realize to data on publicly-owned chain
Defencive function.
During above-mentioned data common recognition, it is preferable that according to block ID, intelligent contract and about ID and intelligent contract
Historical trading data formed transaction data make a summary to carry out.To obtain block ID and intelligence and about ID, each intelligence contract
Historical trading data and current state storage when logic isolation.After having executed any transaction, in the logical number of intelligent contract
According to being inserted into one in library using block ID and intelligence and about ID as the record of key assignments, know together for use in subsequent completion.Correspondingly,
The historical trading data and current state of intelligent contract can by logic isolation store in the database, intelligent contract it is current
According to the intelligence of the block ID that stores in database and intelligent contract and about, ID is inquired state.
After obtaining synchronous verification result, if it is determined that have block data in publicly-owned chain and mistake occur, then use with
Lower method is corrected: being received the Data correction request for block data in current publicly-owned chain, is wrapped in Data correction request
It includes: the location information of wrong data to be corrected in publicly-owned chain, and the replacement data after being corrected to wrong data.Institute
The object data that the wrong data stated is corrected as this, it only includes the data being corrected which, which can be, or
It is the transaction data package contained including the data being corrected.
It is with area already present in publicly-owned chain when receiving and handling Data correction request in order to facilitate data management
Byte information of the block number in is that unit is handled one by one, i.e., every time in received Data correction request only comprising being directed to a byte
The Data correction of information is requested.
It specifically, can be to system when publicly-owned chain manager needs the block data to block in publicly-owned chain to be corrected
The location information of wrong data to be corrected in publicly-owned chain is inputted, which specifically can be the area where wrong data
The data ID of block ID and the wrong data in the block data of block.For the transaction data in some byte information into
Row correction is just had determined when determining to carry out Data correction, and when specifically executing Data correction, it is only necessary to lock quilt
Location information of the correction data, that is, wrong data in the publicly-owned chain.
Then the wrong data in publicly-owned chain is revised as replacement data；Specifically, according to Data correction request in include
Location information of the wrong data in publicly-owned chain, be that number can be realized in replacement data by the data modification of corresponding position
According to modification.It is requested according to Data correction, generates correction report, correction report includes the wrong data of associated storage publicly-owned
Location information in chain, and the replacement data after being corrected to wrong data；And the two information associations are stored to be formed
One correction report.It optionally, can also include the temporal information of this correction report generation in correction report.
Correction report corrected to publicly-owned chain every time is stored, the Transaction Information recorded in checking publicly-owned chain
When in combination with correction report publicly-owned chain is checked, can also according to correction report content, exist to the block for having data modification
Consistency in publicly-owned chain is verified by force.
For block metadata, in order to prevent due to using single node storage metadata to cause safety issue, it is assumed that
There is Transaction Set SC={ c1, c2..., cm, each corresponding abstract set S that tradesAbs={ abs1, abs2..., absm, SF=
{f1, f2..., fmIt is each data acquisition system to be stored of trading, SP={ pabs1, pabs2..., pabsmIt is that each summary data is deposited
Location information after storing up publicly-owned catenary system can be obtained by first node, SV={ n1 v, n2 v, n3 v..., ns vIt is synchronous verifying
Initiate node.Store metadata process the following steps are included:
(1) data for treating storage calculate abstract, obtain data SF '={ < fabs1, abs1>,<fabs2, abs2>...,<
fabsm, absm> it is saved in publicly-owned chain, wherein fabsiIndicate transaction ciData after abstract, wherein 0 < i≤m.
(2) SF ' is sent to all synchronous verifyings and initiates node SV, plucking for each transaction of node verification is initiated in synchronous verifying
Information is wanted, the broadcast message bct of the node of all summary infos has been verified.Other synchronize verifying initiation nodes and receive end after bct
Only current authentication processes, waiting are verified next time.Meanwhile synchronization verifying initiates node and obtains record permission, is denoted as n'v。
(3)n'vThe location information SP that all data in SF ' are obtained to first node, passes through metadata SM={ < abs1, pabs1
>,<abs2, pabs2>...,<absm, pabsm> one metadata block MB of construction, intra-node finally is written into metadata block
In publicly-owned chain.
(4)n'vGlobal publicly-owned chain is recorded in MB.After recording successfully, n'vBroadcast the message bct, other is notified to synchronize verifying
Initiate publicly-owned chain state inside node synchronization node.
Wherein, node S is initiated in all synchronous verifyingsVIt is collected simultaneously the summary info S of All Activity in given time periodAbs
With data copy information, in verifying digest procedure, the node for being initially completed the verifying of All Activity summary info can be remembered
Permission is recorded, and broadcasts the message and notifies other nodes.Node is initiated in the synchronous verifying for not obtaining record permission, then terminates current behaviour
Make, waits the request in the next period.
Based on the anti-tamper feature of publicly-owned chain itself, after metadata is stored in publicly-owned chain, counterparty is at any time to same step
Card initiates node and sends the integrality that checking request carrys out verify data.In addition, if mistake occurs for first node, reading can also be passed through
Global publicly-owned chain is taken to restore metadata.Metadata validation process is by transaction summarization come the process of the publicly-owned chain of query metadata
Are as follows:
(1) by summary info abscIt is sent to all synchronous verifyings and initiates node SV.
(2) node n is initiated in each synchronous verifyingiV, wherein [1, s] i ∈, first checks for the publicly-owned chain state of local metadata
It is whether consistent with global state, if unanimously, in the corresponding location information of the publicly-owned chain query summary info absc of intra-node
pfabsc；If instead state is inconsistent, first updates the publicly-owned chain of intra-node and inquired again.
(3) when the synchronous verifying more than half initiates querying node to identical result, verification result is returned into friendship
Yi Fang, while the bct that broadcasts the message, other synchronous verifying initiation nodes for not completing inquiry terminate after receiving bct currently to be looked into
Inquiry process.
In the metadata validation stage, it is also cooperation relation that node is initiated in all synchronous verifyings, i.e., inquires position letter at first
The synchronous verifying of breath initiates node and returns result to counterparty.
It is authenticated between node to realize counterparty, by the root contract in intelligent contract after license, publicly-owned chain is added.Add
Enter the root contract of publicly-owned chain as the publicly-owned chain certificate of node self-generating root contract, and the cryptographic Hash of intelligent contract is charged into publicly-owned chain
It is interior, as trust voucher.The trust voucher initiating querying node verifying and being stored on publicly-owned chain is verified by synchronous.It is described publicly-owned
The root contract self-generating in multiple domains of publicly-owned chain is added by license for chain certificate, and charges to publicly-owned chain.Preferably, in digital certificate
It is added to dealer's type and the title of creator type.After authenticating between counterparty realizes node, the root of auth type is closed
Certificate about is generated to the counterparty of request certification and is transmitted to user, and charges to publicly-owned chain in the form of cryptographic Hash, facilitates user again
Rapid authentication is provided when access.It is synchronous to verify the trusted voucher for initiating node by checking multiple types in publicly-owned chain, instead of
To the process of the verifying of intelligent contract.According to above-mentioned trust model, system architecture and publicly-owned chain certificate, the node based on publicly-owned chain
Between certification start before, the cryptographic Hash and write state of the root contract of each type have been saved in the block of publicly-owned chain.
In conclusion the invention proposes a kind of method of data synchronization based on block, it is real using publicly-owned chain own system
Show the synchronous verifying of data between block, and quickly corrects mistake existing for block data.
Obviously, power type it is to be understood by the skilled artisans that each module of the above invention or each step can be with logical
Computing system realizes that they can be concentrated in single computing system, or be distributed in multiple computing system institutes group
At network on, optionally, they can be realized with the program code that computing system can be performed, it is thus possible to they are deposited
Storage is executed by computing system within the storage system.In this way, the present invention is not limited to any specific hardware and softwares to combine.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (5)
1. a kind of method of data synchronization based on block characterized by comprising
When there are new transaction data, the first node in publicly-owned catenary system receives new block data；
Indicate that the summary info of new block data is stored in respective new block and cached by other any nodes in publicly-owned catenary system.
2. further comprising the method according to claim 1, wherein the first node receives new block data:
First node caches the new block of new block data deposit first node, and sends transaction data more to other T-1 nodes
New request.
3. according to the method described in claim 2, it is characterized in that, it includes the new district block number in request that the transaction data, which updates,
According to；The transaction data updates request and is used to indicate any of other T-1 nodes node for the summary info of new block data
It is stored in respective new block caching.
4. the method according to claim 1, wherein other any nodes in the publicly-owned catenary system are by new district
The summary info of block number evidence is stored in respective new block caching, further comprises:
When the quantity of the summary info of new block data reaches preset quantity in the new block caching of node, according to preset two
System rule distinguishes binarization and handles N number of new block data, obtains the corresponding N number of byte letter of N number of new block data
Breath, N are the new block data bulk obtained.
5. the method according to claim 1, wherein other any nodes in the publicly-owned catenary system are by new district
The summary info of block number evidence is stored in respective new block caching, further comprises:
Reach preset time constantly in the time interval away from last time construction new block, according to preset binarization rule difference two
The N number of new block data of systemization processing, obtain the corresponding N number of byte information of N number of new block data, and N is acquired new
The quantity of block data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110430282A (en) * | 2019-08-16 | 2019-11-08 | 微位（深圳）网络科技有限公司 | Data transmission method and device between distributed system node |
| CN110716982A (en) * | 2019-09-09 | 2020-01-21 | 平安普惠企业管理有限公司 | Block chain real-time storage method and device, computer equipment and storage medium |
| CN111415161A (en) * | 2020-04-27 | 2020-07-14 | 财付通支付科技有限公司 | Block chain-based data verification method and device and computer-readable storage medium |
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| CN110716982B (en) * | 2019-09-09 | 2024-02-02 | 深圳点链科技有限公司 | Block chain real-time storage method, device, computer equipment and storage medium |
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