CN109587238A

CN109587238A - The data processing of block chain and synchronous method, device, equipment and storage medium

Info

Publication number: CN109587238A
Application number: CN201811465309.2A
Authority: CN
Inventors: 荆博
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Baidu Online Network Technology Beijing Co Ltd; Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2018-12-03
Filing date: 2018-12-03
Publication date: 2019-04-05
Anticipated expiration: 2038-12-03
Also published as: CN109587238B

Abstract

The embodiment of the invention discloses a kind of data processing of block chain and synchronous method, device, equipment and storage mediums.The data processing method of block chain is applied to block chain node, this method comprises: determining at least one synchronization block of checkpoint to be created when determining satisfaction setting trigger condition；The inspection point identification of checkpoint is calculated according to the data of the synchronization block in block chain；It will check that point identification transmits in block chain network, to request other block chain link points to be verified, and feed back approval signature；If the approval signature received meets effective term, is locally corresponding to synchronous block record check point identification and approving signature.It, can be as unit of checkpoint if other nodes need to carry out block synchronization using the technical solution of the embodiment of the present invention, block is synchronized according to checking that point identification obtains, it is directly that the data delivery node of synchronous block is local, it does not need to repeat verification, therefore it is synchronous to can speed up data.

Description

The data processing of block chain and synchronous method, device, equipment and storage medium

Technical field

The present embodiments relate to the data processing of block chain technology more particularly to a kind of block chain and synchronous method, dress It sets, equipment and storage medium.

Background technique

Block chain is the novel of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm Application model.

Under normal conditions, each node in block chain network can safeguard the block data of full dose, and block chain network New block can be ceaselessly generated, over time, each node needs the data volume safeguarded will be increasing.And block chain category In linked data structure, each block is directed toward a upper block, and therefore, the validity of verify data just needs to open from wound generation block Begin, sequence verifies each block.

And for the node that block chain network is added new for one, need first to synchronize all history block datas and Validity check one by one is carried out, could start to synchronize newest block.And history block data is often very big, therefore, this is same Step process need to expend for a long time.

Summary of the invention

The embodiment of the present invention provides data processing and synchronous method, device, equipment and the storage medium of a kind of block chain, with Accelerate the synchronization of block data.

In a first aspect, it is applied to block chain node the embodiment of the invention provides a kind of data processing method of block chain, This method comprises:

When determining satisfaction setting trigger condition, at least one synchronization block of checkpoint to be created is determined；

The inspection point identification of the checkpoint is calculated according to the data of the synchronization block in block chain；

The inspection point identification is transmitted in block chain network, to request other block chain link points to be verified, and it is anti- Signature is approved in feedback；

If the approval signature received meets effective term, the checkpoint is recorded locally corresponding to synchronous block Mark and approval signature.

Second aspect, the embodiment of the invention also provides a kind of method of data synchronization of block chain, are applied to block chain link Point, this method comprises:

Block synchronization request is initiated to inspection node, and checks the data of the synchronization block of node feeding back and checks Point identification and approval signature, wherein the checkpoint, which is identified as, checks that node calculates determination according to the data of synchronous block, described Approval signature carries out verifying to inspection point identification for other nodes and feeds back to the inspection node；

The authenticity of point identification is checked according to the approval signature verification；

If the inspection point identification is true, the data of synchronous block according to the checkpoint identity verification are true Property；

The data validity of the synchronous block is verified, then stores the data of the synchronous block.

The third aspect, the embodiment of the invention also provides a kind of data processing equipments of block chain, are configured at block chain link In point, which includes:

Block determining module is checked, for determining checkpoint to be created at least when determining satisfaction setting trigger condition One synchronous block；

Computing module is identified, the checkpoint for calculating the checkpoint according to the data of the synchronization block in block chain is marked Know；

Identification transmission module, for transmitting the inspection point identification in block chain network, to request other block chains Node is verified, and feeds back approval signature；

Logging modle is locally corresponding to synchronous block if the approval signature for receiving meets effective term It records the inspection point identification and approves signature.

Fourth aspect, the embodiment of the invention also provides a kind of data synchronization units of block chain, are configured at block chain link In point, which includes:

Communication module for initiating block synchronization request to inspection node, and checks the synchronization block of node feeding back Data and check point identification and approve signature, wherein the checkpoint, which is identified as, checks node according to the data of synchronous block Calculating determines that the approval signature carries out verifying to inspection point identification for other nodes and feeds back to the inspection node；

Identity verification module, for checking the authenticity of point identification according to the approval signature verification；

Data Verification module, if true for the inspection point identification, according to the checkpoint identity verification The data validity of synchronous block；

Data memory module, the data validity for the synchronous block are verified, then store the inspection block Data.

5th aspect, the embodiment of the invention also provides a kind of equipment, which includes:

One or more processors；

Storage device, for storing one or more programs；

When one or more of programs are executed by one or more of processors, so that one or more of processing Device realizes the data processing method of any block chain in first aspect, or realizes any area in second aspect The method of data synchronization of block chain.

6th aspect, the embodiment of the invention also provides a kind of storage mediums, are stored thereon with computer program, the program The data processing method of any block chain in first aspect is realized when being executed by processor, or is realized in second aspect The method of data synchronization of any block chain.

The data processing of block chain provided in an embodiment of the present invention and synchronous method, device, equipment and storage medium, the machine Node is determining that the creation for then executing checkpoint operates when meeting setting trigger condition, determines at least the one of checkpoint to be created A synchronous block, the data based on synchronous block calculate the inspection point identification of checkpoint and request other block chain nodes to inspection Mark is made an inventory of to be verified and feed back approval signature, then in the case where the approval signature received meets effective term, Synchronous block is locally recorded, check point identification and approves the incidence relation between signature three, and then completes this checkpoint Creation.If such as new node that block chain network is added of a certain block chain node need to carry out block and synchronize, can be with checkpoint Unit synchronizes block according to checking that point identification obtains, directly that the data delivery node of synchronous block is local, does not need to repeat Verification is executed, therefore it is synchronous to can speed up data.

Detailed description of the invention

Fig. 1 is a kind of flow chart of the data processing method of the block chain provided in the embodiment of the present invention one；

Fig. 2 is a kind of flow chart of the data processing method of the block chain provided in the embodiment of the present invention two；

Fig. 3 is a kind of flow chart of the data processing method of the block chain provided in the embodiment of the present invention three；

Fig. 4 is a kind of flow chart of the method for data synchronization of the block chain provided in the embodiment of the present invention four；

Fig. 5 is a kind of flow chart of the method for data synchronization of the block chain provided in the embodiment of the present invention five；

Fig. 6 is a kind of structural schematic diagram of the data processing equipment of the block chain provided in the embodiment of the present invention six；

Fig. 7 is a kind of structural schematic diagram of the data synchronization unit of the block chain provided in the embodiment of the present invention seven；

Fig. 8 is a kind of structural schematic diagram of the equipment provided in the embodiment of the present invention eight.

Specific embodiment

The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.

Embodiment one

Fig. 1 is a kind of flow chart of the data processing method for block chain that the embodiment of the present invention one provides, and the present embodiment can It is the processing condition data of synchronous block creation checkpoint suitable for block chain network, the checkpoint of creation is for example applicable to In block chain network, such as new node that block chain network is added of some node need to carry out the synchronous scene of block.The area being applicable in Block chain can be publicly-owned chain, privately owned chain or alliance's chain.The scheme of the embodiment of the present invention is applied to block chain node, and this method can It is executed with the data processing equipment by block chain, the mode which can be used software and/or hardware is realized, and can be integrated in In the calculating equipment for carrying block chain link point.Referring to Fig. 1, this method is specifically included:

S110 determines at least one synchronization block of checkpoint to be created when determining satisfaction setting trigger condition.

In the present embodiment, setting trigger condition refers to that the node in preset block chain network creates checkpoint when institute The rule to be met；The setting trigger condition can make an appointment in block chain creation, be stored in block chain wound generation block, I.e. in the 0th block of block chain, or independently of block chain be stored in node local；Can also during block chain creation base In ballot selection mechanism, it is added in some block of block chain, it such as can be in the form of intelligent contract or other block link networks The form that network is approved is submitted in block chain network, and be stored in some block the inside etc..Illustratively, setting trigger condition can To be configured in block chain wound generation block or update in the deployment data of configuration block.Wherein, deployment data refer to participation block The node of chain network, what is disposed needed for local includes the operating mechanisms such as checkpoint creation condition, which can be with intelligence The form of contract is submitted in block chain network, and is stored in inside some block.

Optionally, meet setting trigger condition can be local block chain current state meet block chain wound generation block in or The regulation for creating checkpoint in the deployment data of configuration block is updated, local block chain current block height is such as can be and meets in advance If block vertical separation, current block height refers to the current block number such as 100 of block chain.It is logical to be also possible to other triggerings Know mechanism, for notifying localized nodes creation checkpoint etc., is not limited this in the present embodiment.

So-called checkpoint, which can also become, achieves point, is used to indicate to the block in such as default block vertical separation in a certain section Archive processing is carried out, and the block for being included in default block vertical separation is synchronous block.And checkpoint can generally refer to The end position of synchronous block, and the initial position for synchronizing block is defaulted as the position of the last checkpoint created of localized nodes It sets, in addition, the initial position of synchronous block can also be configured according to actual needs.In the present embodiment, checkpoint to be created As this checkpoint to be created of localized nodes.

Illustratively, determine checkpoint to be created at least one synchronize block may include: local will be deposited it is newest Block height subtracts setting offset block amount, and subtracts setting detection range block amount, and difference serial number block obtained is made For the starting point block of synchronous block, terminal block of the starting point block plus setting detection range block amount as synchronous block.

In the present embodiment, newest block height refers to the number of the local currently stored block of block chain；Setting offset area Block amount refers to bifurcated in order to prevent, the maximum block number such as 6 of preset permissible bifurcated；Set detection range block amount Refer to the interval number of blocks between adjacent checkpoint that localized nodes are created.For example, the local newest block height deposited Be 106, setting offset block amount is 6, set detection range block amount as 50, then difference serial number block is the 51st piece, as Point block, difference serial number block are equivalent to next block serial number after digital difference.The serial number of starting point block is plus setting inspection Surveying range block amount is 100, then the 100th piece is terminal block, therefore, the synchronization block of identified checkpoint to be created are as follows: 51st block of local block chain is to the 100th block.If newest block height is 156, starting point block is the 101st piece, Terminal block is the 150th piece.

Specifically, localized nodes detect the state that local block chain is presently in meet block chain wound generation block in or The regulation for creating checkpoint in the deployment data of configuration block is updated, then executes the creation operation of checkpoint, determines inspection to be created At least one made an inventory of synchronizes block.

It should be noted that, by controlling the condition that checkpoint creates, can avoid in block chain in the present embodiment Node the phenomenon that arbitrarily initiating to create, leading to block chain network fluctuation of service, further ensure that block data in block chain Has high security.

S120 calculates the inspection point identification of checkpoint according to the data of the synchronization block in block chain.

In the present embodiment, it may include being stored in that the data of synchronous block, which refer to all data corresponding to synchronous block, Block data in block, and it is stored in independently of block chain the data etc. of node local.Check that point identification refers to for only The mark of the one a certain checkpoint of identification, can be used for representing the information etc. of synchronization block corresponding to checkpoint.Optionally, it checks The calculation of point identification can store in block chain wound generation block or in the deployment data for updating configuration block, localized nodes It need to be created according to block chain in generation block or update mode specified in the deployment data of configuration block and calculate inspection point identification；This Outside, localized nodes can also be using the calculation such as public key of itself, private key or the signature algorithm such as SHA256 locally set It calculates and checks point identification.

Specifically, localized nodes can breathe out the data of block synchronous in block chain using hash algorithm such as SHA256 Uncommon operation, and then obtain the inspection point identification of checkpoint.Can also block head data to each synchronous block or it is block-identified into Row Hash operation obtains the inspection point identification of checkpoint.Different calculations determines the verifying of the data to synchronous block Degree, subsequent embodiment introduce the determining scheme for checking point identification of different calculations for detailed.

S130 will check that point identification transmits in block chain network, to request other block chain link points to be verified, and it is anti- Signature is approved in feedback.

In the present embodiment, approve that signature is that other block chain nodes verify to inspection point identification and use key such as private Key feeds back to localized nodes after signing to the inspection point identification.Optionally, approve that in signature may include via other Block chain node key, such as the key such as public key and node identification for checking point identification, other block chain nodes of private key signature Deng.Wherein, node identification refers to the mark for a certain block chain node identities of unique identification, can be node ID or network IP Address etc..

Specifically, localized nodes are marked in the checkpoint that checkpoint is calculated according to the data of the synchronization block in block chain After knowledge, which can be transmitted in block chain network, to request other block chain nodes to the inspection point identification It is verified and feeds back approval signature.After other block chain nodes receive the inspection point identification of localized nodes transmission, it can adopt With calculation identical with localized nodes calculate checkpoint inspection point identification, and by the inspection point identification being calculated with connect The inspection point identification of receipts is compared, if inconsistent, can send checkpoint identity verification failure information to block chain network Or it does nothing；If consistent, signed using key such as private key to inspection point identification, it then will be via private key The inspection point identification of signature and node public key etc. feed back to localized nodes together as signature is approved；Localized nodes receive it The approval of his block chain node feeding back is signed.

S140 is locally corresponding to synchronous block record check if the approval signature received meets effective term Point identification and approval signature.

In the present embodiment, effective term refers to that recognizing signable feedback meets preset requirement, i.e., other nodes are to this The approval of checkpoint meets preset requirement.Specifically, can be it is preset recognize reach opposite needed for signable quantity Ratio or absolute quantity etc. such as recognize the half that signable quantity is greater than block chain network total node number amount.In order to further right The permission of checkpoint creation is managed, and optionally, effective term, which can also be configured in block chain wound generation block or update, matches It sets in the deployment data of block, to guarantee that the effective term is difficult to be tampered and open and clear property.

Specifically, if localized nodes receive other block chain node feeding backs approval signature after, can be into ca authentication The heart sends the effective number of nodes of query communication certificate, to obtain the number of nodes for participating in block chain network, or from local maintenance Node identities mark table in inquiry obtain participate in block chain network number of nodes；Then obtained from block chain wound generation block Effective term is taken, or is traversed forward from current block to obtain effective term, the effective term is based on, determines the approval received Whether signature meets effective term；If approve signature meet effective term, be locally created synchronous block, check point identification and Approve the incidence relation between signature three, and is stored in local pre-stored checkpoint concordance list or is stored in current block It is medium, and then complete the creation operation of this checkpoint；If approve wrong tally signature close effective term, illustrate check point identification without Effect, localized nodes can abandon the creation of this checkpoint.

Technical solution provided in an embodiment of the present invention, localized nodes then execute inspection when determining satisfaction setting trigger condition The creation operation made an inventory of determines that at least one synchronization block of checkpoint to be created, the data based on synchronous block are calculated and checked Point inspection point identification and request other block chain nodes to check point identification verified and feed back approval signature, then exist In the case that the approval signature received meets effective term, synchronous block is being locally recorded, check point identification and is approving signature Incidence relation between three, and then complete the creation of this checkpoint.If such as new section that block chain network is added of other nodes Point need to carry out block and synchronize, then can be as unit of checkpoint, according to the synchronous block of point identification acquisition is checked, directly by synchronization zone The data delivery node of block is local, does not need to repeat verification, therefore can speed up data and synchronize, and is that the data of block chain are same Step provides a kind of new approaches.

Embodiment two

Fig. 2 is a kind of flow chart of the data processing method of block chain provided by Embodiment 2 of the present invention, and the present embodiment exists On the basis of above-described embodiment, the inspection point identification of checkpoint is further calculated according to the data of the synchronization block in block chain It is explained.Referring to fig. 2, this method specifically includes:

S210 determines at least one synchronization block of checkpoint to be created when determining satisfaction setting trigger condition.

S220 exports the block data of the synchronization block in block chain and this surface data, forms synchronization zone block file.

In the present embodiment, block data refers to the data being stored in block, this surface data refers to independently of block chain It is stored in the data of node local.Illustratively, block data may include block body and block head, before block head is for storing The Mei Keer that Transaction Information in one block-identified, block creation timestamp, random number, target Hash and the block is established Tree root etc.；Block body is used for store transaction data itself.Due to operation function, implementing result and the transactions history of intelligent contract The data volumes such as data are relatively huge, and do not spend transaction output data data volume relatively small.It is therefore preferable that in the present embodiment In, block body does not spend transaction output data for storing；This surface data is used to store the operation function of intelligent contract and holds Row is as a result, and for store transaction historical data etc..

Wherein, transaction output data i.e. UTXO (Unspent Transaction Output) data are not spent, are numbers The basic unit of moneytary operations is the data structure comprising transaction data and execution code, it may also be said to be that certain address is such as The encryption digital cash still not yet spent away that account B has been received.Based on UTXO data, by the input of transaction and defeated Out, fund can be changing into one section of numeric structure (being referred to as Transaction or trade order).It is corresponding, it hands over The digital cash that easy historical data is as spent away.Operation function refers to the mistake for running code segment corresponding to intelligent contract Function involved in journey, specifically include function that the intelligence contract itself is written and there are dynamic binding relationship, in operation The function etc. of calling.Implementing result is the result of output after running the corresponding code segment of intelligent contract.

Specifically, localized nodes are after at least one for determining checkpoint to be created synchronizes block, it can will be in block chain The block data and this surface data of synchronous block export, and carry out serializing processing, form synchronization zone block file.Synchronous block File is used to represent the data information of synchronization block corresponding to checkpoint, optionally, synchronization zone block file can for one or It is multiple.

Illustratively, the block data of the synchronization block in block chain and this surface data are exported, forms synchronous block File may include: that the block data of the synchronization block in block chain and the export of this surface data are formed a synchronous block File；Or it by the block data of the synchronization block in block chain and this surface data, is exported respectively according to data type table, shape At multiple synchronization zone block files.

In the present embodiment, data type refers to type involved in the data of synchronous block；It may include UTXO data, intelligence It can contract data (data corresponding to the operation function and implementing result of intelligent contract) and three type of transaction history data Type.For the ease of management, classification storage can be carried out according to data type, same type of data are stored in same tables of data In, that is to say, that a kind of data are stored in a data type list, the number of data type table represents the species number of data.Cause This, localized nodes can directly export the block data of block synchronous in block chain and this surface data, raw after being handled At a synchronization zone block file；The data in one data type list can also be exported to form one according to data type table Synchronization zone block file, and then form multiple synchronization zone block files.

Optionally, the data of the synchronization block in the present embodiment can be based on the database purchase number of Level DB form According to.Therefore, if localized nodes are by the block data of the synchronization block in block chain and this surface data, according to data type table point It does not export, forms multiple synchronization zone block files, then can be determined according to Level DB table name, block chain title and data type etc. The title of each synchronization zone block file.For example, synchronization zone block file title are as follows: block chain title+data type (UTXO data/intelligence Energy contract data/transaction history data)+Level DB table name.If localized nodes are by the block counts of the synchronization block in block chain It is exported according to this surface data, forms a synchronization zone block file, the title of the synchronization zone block file then can be with direct basis area Block chain title and Level DB table name determine.

In conclusion being not limited on only block chain originally in the embodiment of the present invention for calculating the data for checking point identification Body storage data, can also include and associated surface data of block chain.The storage classification of this surface data is also not necessarily limited to Above-mentioned three classes can be each storage table for needing and determining based on storage architecture.

S230 calculates the inspection point identification of checkpoint according to the data in the block file of synchronization zone.

It is provided in the deployment data for configuring block specifically, localized nodes can be created in generation block or be updated according to block chain Mode or the calculation etc. that locally sets of localized nodes, calculate checkpoint mark according to the data in the block file of synchronization zone Know.For example, Hash operation can be carried out to the data in the block file of synchronization zone using hash algorithm, cryptographic Hash is obtained, by the Kazakhstan Inspection point identification of the uncommon value as checkpoint.

In the present embodiment, the quantity of synchronization zone block file is different, and the side for checking point identification is determined based on synchronization zone block file Formula is different.Illustratively, according to the data in the block file of synchronization zone, the inspection point identification for calculating checkpoint may include: basis Data in the block file of synchronization zone calculate cryptographic Hash, as inspection point identification.Specifically, localized nodes can use hash algorithm Cryptographic Hash is calculated to the data in the block file of synchronization zone, using the cryptographic Hash as inspection point identification.

It may also is that each synchronization zone block file is calculated separately file cryptographic Hash, established according to each file cryptographic Hash Mei Keer tree, using the root of Mei Keer tree as inspection point identification.In the present embodiment, file cryptographic Hash is based on a synchronous block Data in file calculate what cryptographic Hash obtained.Specifically, localized nodes can use hash algorithm literary to each synchronous block Part calculates separately file cryptographic Hash, then according to each file cryptographic Hash, Mei Keer tree is generated using Mei Keer tree algorithm, by plum The root of Ke Er tree is as inspection point identification.

Further, it is also possible to cryptographic Hash be calculated according to the block head data of synchronous block, as inspection point identification.Specifically, Localized nodes can obtain the block-identified of the synchronization block from the block head of each synchronous block, then by each synchronization zone The block-identified number order according to each synchronous block of block is connected together as an entirety mark, and integrally marks to this Know and calculate cryptographic Hash, obtains checking point identification；Can also block head data to each synchronous block calculate cryptographic Hash, then according to According to each cryptographic Hash, Mei Keer tree is generated using Mei Keer tree algorithm, using the root of Mei Keer tree as inspection point identification.The present embodiment In, the block head data based on synchronous block calculate the mode for checking point identification, are more suitable for the local not memory block chain of node Lightweight node carry out subsequent synchronisation block data verification.

S240 will check that point identification transmits in block chain network, to request other block chain link points to be verified, and it is anti- Signature is approved in feedback.

S250 is locally corresponding to synchronous block record check if the approval signature received meets effective term Point identification and approval signature.

It should be noted that exported in the present embodiment by the block data and this surface data that will synchronize block, as One entirety, that is, synchronization zone block file, so that the subsequent new node that block chain network is added can be straight when progress block chain is synchronous It connects and imports synchronization zone block file locally, and then ensure that the block data not being only stored in block is able to carry out synchronization, and It relies on block chain but the data for being stored in node local independently of block chain can also synchronize together, that is, ensure that synchronous area While block chain is complete, synchronizing speed is accelerated.

Technical solution provided in an embodiment of the present invention, localized nodes are at least one synchronization zone for determining checkpoint to be created After block, the block data of block synchronous in block chain and this surface data can be exported, and carry out serializing processing, be formed same Walk block file；And the inspection point identification of checkpoint is calculated based on the data of synchronization zone block file and requests other block chain links Point verifies inspection point identification and feeds back approval signature, then the case where the approval signature received meets effective term Under, synchronous block is being locally recorded, check point identification and is approving the incidence relation between signature three, and then is completing this inspection The creation of point.It can be single with checkpoint if such as new node that block chain network is added of other nodes need to carry out block and synchronize Position synchronizes block according to checking that point identification obtains, directly that the data delivery node of synchronous block is local, does not need to repeat Verification, therefore it is synchronous to can speed up data.

Embodiment three

Fig. 3 is a kind of flow chart of the data processing method for block chain that the embodiment of the present invention three provides, and the present embodiment exists It is same locally corresponding to if the approval signature further received meets effective term on the basis of above-described embodiment Step block records the inspection point identification and approves that signature is explained.Referring to Fig. 3, this method is specifically included:

S310 determines at least one synchronization block of checkpoint to be created when determining satisfaction setting trigger condition.

S320 calculates the inspection point identification of checkpoint according to the data of the synchronization block in block chain.

S330 will check that point identification transmits in block chain network, to request other block chain link points to be verified, and it is anti- Signature is approved in feedback.

Optionally, approve in signature to may include marking via the checkpoint of other block chain node key such as private key signatures Knowledge, the key such as public key and node identification of other block chain nodes etc..

S340 obtains the inspection point identification through other block chain node private key signatures from the approval signature received, with And obtain the public key of other block chain nodes.

Specifically, sign after the approval signature for receiving other block chain node feeding backs for each approval, the machine section Point can obtain the inspection point identification and the block chain link via a certain block chain node private key signature from approval signature The public key of point is then carried out using the public key of the block chain node to using the inspection point identification of the block chain node private key signature Identification obtains checking point identification；Obtained inspection point identification is compared with the inspection point identification of local computing, if unanimously, Then illustrate that checkpoint mark is effective；If inconsistent, illustrate to check that point identification is invalid.

S350, if identified by the checkpoint that public key verifications are signed effective, it is determined that approve that signature is effective.

Specifically, for each inspection point identification via block chain node private key signature, if localized nodes pass through it is a certain The public key verifications of block chain node identify effective via the checkpoint of the block chain node private key signature, it is determined that the block chain link The fed back approval signature of point is effective；Otherwise, it determines the approval signature that the block chain node is fed back is invalid.

S360 is locally corresponding to synchronous block record if effectively recognizing signable quantity meets effective term It checks point identification and approves signature.

Specifically, localized nodes can first determine the number of nodes for participating in block chain network, then from the area block Lian Chuanshi Effective term is obtained in block, or is traversed forward from current block to obtain effective term, the effective term is based on, and is determined effective Recognize whether signable quantity meets relative scale or absolute quantity specified in effective term；If meeting, it is being locally created Synchronous block checks point identification and approves the incidence relation between signature three, and is stored in the local checkpoint constructed in advance Concordance list or to be stored in current block medium；If not meeting, illustrate to check that point identification is invalid, localized nodes can abandon this inspection The creation made an inventory of.

Technical solution provided in an embodiment of the present invention, localized nodes execute inspection when determining satisfaction setting trigger condition The creation operation of point determines that at least one synchronization block of checkpoint to be created, the data based on synchronous block calculate checkpoint Inspection point identification and request other block chain nodes to check point identification verified and feed back approval signature；Then dock The signable validity of recognizing received is determined, and in the case where effective approval signature meets effective term, in local Recording synchronism block checks point identification and approves the incidence relation between signature three, further to the permission of checkpoint creation It is managed, it is ensured that block data has high security in block chain.If such as new node that block chain network is added of other nodes It is synchronous need to carry out block, then can synchronize block according to checking that point identification obtains as unit of checkpoint, it directly will synchronous block Data delivery nodes it is local, do not need to repeat verification, therefore can speed up that data are synchronous, be the data synchronization of block chain Provide a kind of new approaches.

Example IV

Fig. 4 is a kind of flow chart of the method for data synchronization for block chain that the embodiment of the present invention four provides, and the present embodiment can Node suitable for block chain network carries out the synchronous situation of block, is particularly suitable in block chain network, block is newly added The node of chain network carries out the synchronous scene of block based on checkpoint.Checkpoint in the present embodiment can use above-described embodiment In scheme created.The scheme of the embodiment of the present invention is applied to block chain node, and this method can be by the data of block chain Synchronizing device executes, and the mode which can be used software and/or hardware is realized, and can be integrated in carrying block chain link point It calculates in equipment.Referring to fig. 4, this method specifically includes:

S410 initiates block synchronization request to inspection node, and checks the data of the synchronization block of node feeding back, inspection It makes an inventory of mark and approves signature.

In the present embodiment, check that node refers to that block chain network interior joint has locally constructed or stored the block chain of checkpoint Node, corresponding inspection node identification are block chain node identification；Block synchronization request refers to the node in block chain network It needs to carry out generated request when block chain synchronizes, may include node identification in block synchronization request, can also include institute The mark etc. of the synchronization block and each synchronous block that need to synchronize.Optionally, if generating block synchronization request may include: area Block chain node be the new node that block chain is added or block chain node due to communication quality or by malicious attack etc. other because It is local to need synchronous downloading block chain whens element leads to block chain lack part or whole block of block chain node etc., then it generates Block synchronization request.Optionally, block synchronization request can be initiated from block chain node itself to inspection node；It can also be and work as When preceding block generation node or other permission nodal tests need to carry out the synchronization of block chain to other block chain nodes, saved to checking The initiated request etc. of point.In the present embodiment, preferably block chain node itself initiates block synchronization request to inspection node.

Checkpoint, which is identified as, checks that node calculates determination according to the data of synchronous block, approves that signature is other nodes to inspection It makes an inventory of mark and verify and feed back to inspection node.The data of synchronous block refer to all data corresponding to synchronous block, It may include the block data being stored in block, and be stored in the data etc. of node local independently of block chain.It is exemplary , the data of synchronous block may include: one as derived from the block data and this surface data of the synchronization block in block chain A synchronization zone block file；Or block data and this surface data by the synchronization block in block chain, according to data type table point Not derived multiple synchronization zone block files.Block data includes block body and block head, and block body does not spend transaction for storing Output data；This surface data is used to store the operation function and implementing result of intelligent contract, and is used for store transaction history Data.

Specifically, block chain node can be sent out when needing to carry out the synchronization of block chain to the inspection node in block chain network Play block synchronization request；It checks that node receives the block synchronization request that block chain node is initiated, can synchronize and ask according to block The mark of synchronous block needed for asking is searched in the checkpoint concordance list being locally stored, the inspection met the requirements if it exists It makes an inventory of, then to the data of block chain node feedback synchronization block, inspection point identification and approval signature；If checking, node is not deposited locally In the checkpoint met the requirements, then a checkpoint for meeting block chain node demand can be temporarily created, and to block chain node The data of feedback synchronization block check point identification and approve signature.Wherein, storage checks point identification, same in the concordance list of checkpoint It walks block, approve the incidence relation between signature three.

It should be noted that the corresponding one group of synchronous block in a checkpoint, inspection point identification and approval signature, block chain link The received synchronous block of point institute checks point identification and approves that signature can be multiple groups.For example, the area of synchronization needed for localized nodes Block is data of the 0th block to the 200th block, and checks that synchronization block corresponding to checkpoint A constructed by node is 0th block is to the 100th block；Synchronization block corresponding to the B of checkpoint is the 101st block to the 200th block, this When, localized nodes will receive two groups of synchronous blocks, and check point identification and approve signature.Optionally, the synchronous block of multiple groups, inspection Point identification and approval signature can derive from same inspection node, can also derive from multiple inspection nodes.

It illustratively, can also include: before that block chain node determines block to checking that node initiates block synchronization request Block chain node (checking node) mark of checkpoint has been constructed in chain network.Specifically, block chain node can be to block chain Checkpoint acquisition request is sent in network, then the feedback according to other block chain nodes, will construct the block chain of checkpoint Node initiates block synchronization request to corresponding inspection node as node is checked, according to inspection node identification.

S420, according to the authenticity for approving that signature verification checks point identification.

In the present embodiment, due to checking node when creating checkpoint, it need to will check that point identification passes in block chain network It is defeated, to request other block chain nodes to verify the inspection point identification, and feed back approval signature.Therefore, block chain node It can be according to the authenticity recognized signable quantity and carry out validation check point identification for checking that node is fed back.Specifically, block chain What the determining inspection node of node was fed back recognizes signable quantity, and participates in the number of nodes of block chain network；Then foundation Approve the number of nodes of signed data and block chain network, determines and recognize signable quantity and participation block chain network number of nodes Between ratio whether be greater than setting ratio value, or recognize signable quantity and participate in block chain network number of nodes it Between absolute difference whether be greater than setting quantity；If meeting any of the above-described kind of situation, it is determined that check that point identification is true；If It is unsatisfactory for any of the above-described kind of situation, it is determined that the inspection point identification for checking that node is fed back is not true in vain.

S430, if checking that point identification is true, according to the data validity of the synchronous block of checkpoint identity verification.

Specifically, block chain node in the case where determining the inspection true situation of point identification, can be fed back according to inspection node Synchronization block data, using with check that the identical calculation of node calculates and check point identification, and the inspection that will be calculated It makes an inventory of mark and is compared with the inspection point identification for checking node feeding back, if unanimously, illustrating that the data of synchronous block are true , that is to say, that check that the data etc. of synchronous block are not played tricks or distorted to node；If inconsistent, can be sent out to block chain network The checking request of the data including synchronous block is sent, is checked with requesting other block chain nodes to calculate according to the data of synchronous block Point identification is simultaneously fed back, and the result confirmation according to feedback is that block chain node calculates incorrect or checks the synchronization that node is fed back The data of block are wrong etc..

Illustratively, it may is that according to the data validity of the synchronous block of checkpoint identity verification according to synchronous block text Data in part calculate cryptographic Hash, as point identification is checked, are compared with the inspection point identification received, true with verify data Reality；Each synchronization zone block file is either calculated separately into file cryptographic Hash, Mei Keer is established according to each file cryptographic Hash Tree is compared using the root of Mei Keer tree as point identification is checked with the inspection point identification received, true with verify data Property.If localized nodes are lightweight node, it can also be and calculate cryptographic Hash according to the block head data of synchronous block, as inspection Point identification is compared, with data authenticity validating etc. with the inspection point identification received.

The data validity of S440, synchronous block are verified, then store the data of synchronous block.

Specifically, if block chain node according to the data of the synchronous block of checkpoint identity verification be it is true, can be straight It connects the data delivery node of the associated synchronous block of the inspection point identification is local.In addition, if block synchronization request is to work as proparea Block generates what node was initiated, then current block generates node after the data validity of synchronization block is verified, and can incite somebody to action The data of synchronous block are fed directly to need the node of synchronous block chain, so that the data of synchronous block are imported section by the node Point is local, and it is synchronous to carry out completion block chain.

It should be noted that if block chain node also is stored in some blocks not after the data for storing synchronous block Synchronous, block chain node then needs to synchronize remaining block one by one, until reaching newest block at this time.

Technical solution provided in an embodiment of the present invention, block chain node, can be to inspections when needing to carry out the synchronization of block chain It looks into node and initiates block synchronization request, requesting the data for checking the synchronous block of node feeding back, checking point identification and approving signature； Then according to the authenticity for approving inspection point identification received by signature verification for checking node feeding back, checking that point identification is true In the case where reality, again according to the data validity of the synchronous block of checkpoint identity verification；It is finally true in the data of synchronous block When reality is verified, the data of synchronous block are stored.This programme, if such as new node that block chain network is added of other nodes needs It is synchronous to carry out block, then the data for checking the associated synchronous block of point identification can be introduced directly into section as unit of checkpoint Point is local, does not need to repeat verification, while guaranteeing that synchronous block chain is complete, accelerates synchronizing speed, is block The data of chain have simultaneously provided a kind of new approaches.

Embodiment five

Fig. 5 is a kind of flow chart of the method for data synchronization for block chain that the embodiment of the present invention five provides, and the present invention is implemented Example on the basis of the above embodiments, further checks that the authenticity of point identification explains to according to approval signature verification It is bright.Referring to Fig. 5, this method is specifically included:

S510 initiates block synchronization request to inspection node, and checks the data of the synchronization block of node feeding back, inspection It makes an inventory of mark and approves signature.

Wherein, checkpoint, which is identified as, checks that node calculates determination according to the data of synchronous block, approves signature for other sections Point carries out verifying to inspection point identification and feeds back to inspection node.Optionally, approve that in signature may include via other blocks The inspection point identification of chain node key such as private key signature, the key such as public key and node identification of other block chain nodes etc..One A inspection point identification is associated, and to recognize signable number be multiple.

S520 obtains each public key for approving other corresponding nodes of signing from inspection node.

Specifically, each public affairs for approving other nodes corresponding to acquisition in signature that block chain node is fed back from inspection node Key is then identified to using the inspection point identification of other node private key signatures using the public key of other nodes, is checked Point identification；Obtained inspection point identification is compared with the inspection point identification for checking node feeding back, if unanimously, illustrating to check Point identification is effective；If inconsistent, illustrate to check that point identification is invalid.

S530, if effective using the checkpoint mark of other node private key signatures by public key verifications, it is determined that approve Signature is effective.

Specifically, if block chain node is by the public key verifications of a certain block chain node via the block chain node private key label The checkpoint mark of name is effective, it is determined that the corresponding approval signature of the block chain node is effective；Otherwise, it determines the block chain node Corresponding approval signature is invalid.

S540, if effectively recognizing signable quantity meets effective term, it is determined that check the authenticity of point identification.

Specifically, block chain node can first determine the number of nodes for participating in block chain network, generation then is created from block chain Effective term is obtained in block, or is traversed forward from current block to obtain effective term, the effective term is based on, and is determined effective Recognize whether signable quantity meets relative scale or absolute quantity specified in effective term；If meeting, it is determined that check The inspection point identification that node is fed back is true；If not meeting, illustrate to check that point identification is invalid, block chain node can be abandoned The data of the synchronization block fed back according to the inspection node carry out the synchronous operation of block chain.

S550, if checking that point identification is true, according to the data validity of the synchronous block of checkpoint identity verification.

The data validity of S560, synchronous block are verified, then store the data of synchronous block.

Embodiment six

Fig. 6 is a kind of structural schematic diagram of the data processing equipment for block chain that the embodiment of the present invention six provides, the device It is configured in block chain node, the data processing method of block chain provided by the embodiment of the present invention one, two and three can be performed, Have the corresponding functional module of execution method and beneficial effect.As shown in fig. 6, the device includes:

Block determining module 610 is checked, for determining checkpoint to be created extremely when determining satisfaction setting trigger condition A few synchronous block；

Computing module 620 is identified, the checkpoint for calculating checkpoint according to the data of the synchronization block in block chain is marked Know；

Identification transmission module 630, for that will check that point identification transmits in block chain network, to request other block chain links Point is verified, and feeds back approval signature；

Logging modle 640 is locally corresponding to synchronization zone if the approval signature for receiving meets effective term Block record check point identification and approval signature.

Illustratively, logging modle 640 specifically can be used for:

The inspection point identification through other block chain node private key signatures is obtained from the approval signature received, and is obtained The public key of other block chain nodes；

If identified by the checkpoint that public key verifications are signed effective, it is determined that approve that signature is effective；

If effectively recognizing signable quantity meets effective term, locally corresponding to synchronous block record check point Mark and approval signature.

Illustratively, mark computing module 620 may include:

File forms unit, for exporting the block data of the synchronization block in block chain and this surface data, is formed Synchronization zone block file；

Computing unit is identified, for calculating the inspection point identification of checkpoint according to the data in the block file of synchronization zone.

Illustratively, file forms unit and specifically can be used for:

The block data of synchronization block in block chain and this surface data are exported, a synchronization zone block file is formed； Or

By the block data of the synchronization block in block chain and this surface data, exported respectively according to data type table, shape At multiple synchronization zone block files.

Illustratively, block data includes block body and block head, and block body does not spend transaction output data for storing； This surface data is used to store the operation function and implementing result of intelligent contract, and is used for store transaction historical data.

Illustratively, mark computing unit specifically can be used for:

Cryptographic Hash is calculated according to the data in the block file of synchronization zone, as inspection point identification；Or

Each synchronization zone block file is calculated separately into file cryptographic Hash, Mei Keer tree is established according to each file cryptographic Hash, Using the root of Mei Keer tree as inspection point identification.

Illustratively, trigger condition and effective term are set, configuration block is configured in block chain wound generation block or updates Deployment data in.

Illustratively, check that block determining module 610 specifically can be used for:

By the local newest block height deposited, setting offset block amount is subtracted, and subtracts setting detection range block Amount, starting point block of the difference serial number block obtained as synchronous block, starting point block is plus setting detection range block amount Terminal block as synchronous block.

Embodiment seven

Fig. 7 is a kind of structural schematic diagram of the data synchronization unit for block chain that the embodiment of the present invention seven provides, the device It is configured in block chain node, the method for data synchronization of block chain provided by the embodiment of the present invention four and five, tool can be performed The standby corresponding functional module of execution method and beneficial effect.As shown in fig. 7, the device includes:

Communication module 710 for initiating block synchronization request to inspection node, and checks the synchronization zone of node feeding back The data and inspection point identification and approval signature of block, wherein checkpoint, which is identified as, checks node according to the data meter of synchronous block Calculation determines that approval signature carries out verifying to inspection point identification for other nodes and feeds back to inspection node；

Identity verification module 720, for according to the authenticity for approving that signature verification checks point identification；

Data Verification module 730, if for checking that point identification is true, according to the synchronous block of checkpoint identity verification Data validity；

Data memory module 740, the data validity for synchronizing block are verified, then store the number of synchronous block According to.

Illustratively, identity verification module 720 is specifically used for:

Each public key for approving other corresponding nodes of signing is obtained from inspection node；

If effective using the checkpoint mark of other node private key signatures by public key verifications, it is determined that approve that signature has Effect；

If effectively recognizing signable quantity meets effective term, it is determined that check the authenticity of point identification.

Illustratively, the data of synchronous block may include:

A synchronization zone block file as derived from the block data and this surface data of the synchronization block in block chain；Or

It is derived more respectively according to data type table by the block data and this surface data of the synchronization block in block chain A synchronization zone block file.

Illustratively, Data Verification module 730 specifically can be used for:

Cryptographic Hash is calculated according to the data in the block file of synchronization zone, as point identification is checked, is marked with the checkpoint received Knowledge is compared, with data authenticity validating；Or

Each synchronization zone block file is calculated separately into file cryptographic Hash, Mei Keer tree is established according to each file cryptographic Hash, Using the root of Mei Keer tree as point identification is checked, it is compared with the inspection point identification received, with data authenticity validating.

Embodiment eight

Fig. 8 is a kind of structural schematic diagram for equipment that the embodiment of the present invention eight provides.Fig. 8, which is shown, to be suitable for being used to realizing this The block diagram of the example devices 12 of invention embodiment.The equipment 12 that Fig. 8 is shown is only an example, should not be to of the invention real The function and use scope for applying example bring any restrictions.The calculating that equipment 12 typically undertakes block chain network nodal function is set It is standby.

As shown in figure 8, equipment 12 is showed in the form of universal computing device.If 12 component can include but is not limited to: One or more processor or processing unit 16, system storage 28 connect different system components (including system storage 28 and processing unit 16) bus 18.

Bus 18 indicates one of a few class bus structures or a variety of, including memory bus or Memory Controller, Peripheral bus, graphics acceleration port, processor or the local bus using any bus structures in a variety of bus structures.It lifts For example, these architectures include but is not limited to industry standard architecture (ISA) bus, microchannel architecture (MAC) Bus, enhanced isa bus, Video Electronics Standards Association (VESA) local bus and peripheral component interconnection (PCI) bus.

Equipment 12 typically comprises a variety of computer system readable media.These media can be it is any can be by equipment 12 The usable medium of access, including volatile and non-volatile media, moveable and immovable medium.

System storage 28 may include the computer system readable media of form of volatile memory, such as arbitrary access Memory (RAM) 30 and/or cache memory 32.Equipment 12 may further include it is other it is removable/nonremovable, Volatile/non-volatile computer system storage medium.Only as an example, storage system 34 can be used for reading and writing irremovable , non-volatile magnetic media (Fig. 8 do not show, commonly referred to as " hard disk drive ").Although being not shown in Fig. 8, use can be provided In the disc driver read and write to removable non-volatile magnetic disk (such as " floppy disk "), and to removable anonvolatile optical disk The CD drive of (such as CD-ROM, DVD-ROM or other optical mediums) read-write.In these cases, each driver can To be connected by one or more data media interfaces with bus 18.System storage 28 may include that at least one program produces Product, the program product have one group of (for example, at least one) program module, these program modules are configured to perform of the invention each The function of embodiment.

Program/utility 40 with one group of (at least one) program module 42 can store and store in such as system In device 28, such program module 42 includes but is not limited to operating system, one or more application program, other program modules And program data, it may include the realization of network environment in each of these examples or certain combination.Program module 42 Usually execute the function and/or method in embodiment described in the invention.

Equipment 12 can also be communicated with one or more external equipments 14 (such as keyboard, sensing equipment, display 24 etc.), Can also be enabled a user to one or more equipment interacted with the equipment 12 communication, and/or with enable the equipment 12 with One or more of the other any equipment (such as network interface card, modem etc.) communication for calculating equipment and being communicated.It is this logical Letter can be carried out by input/output (I/O) interface 22.Also, equipment 12 can also by network adapter 20 and one or The multiple networks of person (such as local area network (LAN), wide area network (WAN) and/or public network, such as internet) communication.As shown, Network adapter 20 is communicated by bus 18 with other modules of equipment 12.It should be understood that although not shown in the drawings, can combine Equipment 12 use other hardware and/or software module, including but not limited to: microcode, device driver, redundant processing unit, External disk drive array, RAID system, tape drive and data backup storage system etc..

Processing unit 16 by the program that is stored in system storage 28 of operation, thereby executing various function application and Data processing, such as realize the data processing of block chain and/or the data side of synchronization of block chain provided by the embodiment of the present invention Method.

Embodiment nine

The embodiment of the present invention nine additionally provides a kind of computer readable storage medium, is stored thereon with computer program, should Program can realize that the data of the data processing of block chain and/or block chain described in above-described embodiment are same when being executed by processor Step.The computer readable storage medium can be configured on block chain node.

The computer storage medium of the embodiment of the present invention, can be using any of one or more computer-readable media Combination.Computer-readable medium can be computer-readable signal media or computer readable storage medium.It is computer-readable Storage medium for example may be-but not limited to-the system of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor, device or Device, or any above combination.The more specific example (non exhaustive list) of computer readable storage medium includes: tool There are electrical connection, the portable computer diskette, hard disk, random access memory (RAM), read-only memory of one or more conducting wires (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD- ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.In this document, computer-readable storage Medium can be any tangible medium for including or store program, which can be commanded execution system, device or device Using or it is in connection.

Computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal, Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited In electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for By the use of instruction execution system, device or device or program in connection.

The program code for including on computer-readable medium can transmit with any suitable medium, including --- but it is unlimited In wireless, electric wire, optical cable, RF etc. or above-mentioned any appropriate combination.

The computer for executing operation of the present invention can be write with one or more programming languages or combinations thereof Program code, described program design language include object oriented program language-such as Java, Smalltalk, C++, Further include conventional procedural programming language-such as " C " language or similar programming language.Program code can be with It fully executes, partly execute on the user computer on the user computer, being executed as an independent software package, portion Divide and partially executes or executed on a remote computer or server completely on the remote computer on the user computer.? Be related in the situation of remote computer, remote computer can pass through the network of any kind --- including local area network (LAN) or Wide area network (WAN)-be connected to subscriber computer, or, it may be connected to outer computer (such as mentioned using Internet service It is connected for quotient by internet).

Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation, It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.

Claims

1. a kind of data processing method of block chain, which is characterized in that be applied to block chain node, which comprises

The inspection point identification is transmitted in block chain network, to request other block chain link points to be verified, and feeds back and recognizes It can sign；

If the approval signature received meets effective term, the inspection point identification is recorded locally corresponding to synchronous block It signs with approving.

2. the method according to claim 1, wherein if receive approval signature meet effective term, The inspection point identification and approval signature are recorded locally corresponding to synchronous block, includes:

The inspection point identification through other block chain node private key signatures is obtained from the approval signature received, and obtains other The public key of block chain node；

If identified by the checkpoint of signature described in the public key verifications effective, it is determined that the approval signature is effective；

If effectively recognizing signable quantity meets effective term, the checkpoint is recorded locally corresponding to synchronous block Mark and approval signature.

3. the method according to claim 1, wherein according to the calculating of the data of the synchronization block in block chain The inspection point identification of checkpoint includes:

The block data of synchronization block in the block chain and this surface data are exported, synchronization zone block file is formed；

According to the data in the synchronization zone block file, the inspection point identification of the checkpoint is calculated.

4. according to the method described in claim 3, it is characterized in that, by the block data of the synchronization block in the block chain and The export of this surface data, forms synchronization zone block file, comprising:

The block data of synchronization block in the block chain and this surface data are exported, a synchronization zone block file is formed； Or

By the block data of the synchronization block in the block chain and this surface data, exported respectively according to data type table, shape At multiple synchronization zone block files.

5. according to the method described in claim 3, it is characterized by:

The block data includes block body and block head, and the block body does not spend transaction output data for storing；

Described surface data is used to store the operation function and implementing result of intelligent contract, and is used for store transaction history number According to.

6. according to the method described in claim 4, it is characterized in that, calculating institute according to the data in the synchronization zone block file The inspection point identification for stating checkpoint includes:

Cryptographic Hash is calculated according to the data in the synchronization zone block file, as the inspection point identification；Or

Each synchronization zone block file is calculated separately into file cryptographic Hash, Mei Keer tree is established according to each file cryptographic Hash, by plum The root of Ke Er tree is as the inspection point identification.

7. according to the method described in claim 1, it is characterized by:

The setting trigger condition and effective term are configured in block chain wound generation block or update the deployment data of configuration block In.

8. the method according to claim 1, wherein determine that at least one of checkpoint to be created synchronizes block, Include:

By the local newest block height deposited, setting offset block amount is subtracted, and subtracts setting detection range block amount, institute Starting point block of the difference serial number block of acquisition as synchronous block, starting point block is plus setting detection range block amount as same Walk the terminal block of block.

9. a kind of method of data synchronization of block chain, which is characterized in that be applied to block chain node, comprising:

Block synchronization request is initiated to inspection node, and checks the data of the synchronization block of node feeding back, check point identification It signs with approving, wherein the checkpoint, which is identified as, checks that node is determined according to the data calculating of synchronous block, the approval label Other entitled nodes carry out verifying to inspection point identification and feed back to the inspection node；

If the inspection point identification is true, the data validity of synchronous block according to the checkpoint identity verification；

10. according to the method described in claim 9, it is characterized in that, checking point identification according to the approval signature verification Authenticity, comprising:

Each public key for approving other corresponding nodes of signing is obtained from the inspection node；

If identified effectively by the public key verifications using the checkpoint of other node private key signatures, it is determined that the approval label Name is effectively；

If effectively recognizing signable quantity meets effective term, it is determined that the authenticity for checking point identification.

11. according to the method described in claim 9, it is characterized in that, the data of the synchronous block include:

A synchronization zone block file as derived from the block data and this surface data of the synchronization block in the block chain；Or

It is derived more respectively according to data type table by the block data and this surface data of the synchronization block in the block chain A synchronization zone block file.

12. according to the method for claim 11, it is characterised in that:

13. according to the method for claim 11, which is characterized in that the synchronous block according to the checkpoint identity verification Data validity, comprising:

Cryptographic Hash is calculated according to the data in the synchronization zone block file, as point identification is checked, is marked with the checkpoint received Knowledge is compared, with data authenticity validating；Or

Each synchronization zone block file is calculated separately into file cryptographic Hash, Mei Keer tree is established according to each file cryptographic Hash, by plum The root of Ke Er tree is compared, with data authenticity validating as point identification is checked with the inspection point identification received.

14. a kind of data processing equipment of block chain, which is characterized in that be configured in block chain node, described device includes:

Block determining module is checked, for determining at least one of checkpoint to be created when determining satisfaction setting trigger condition Synchronous block；

Computing module is identified, for calculating the inspection point identification of the checkpoint according to the data of the synchronization block in block chain；

Identification transmission module, for transmitting the inspection point identification in block chain network, to request other block chain nodes It is verified, and feeds back approval signature；

Logging modle is locally corresponding to synchronous block record if the approval signature for receiving meets effective term The inspection point identification and approval signature.

15. a kind of data synchronization unit of block chain, which is characterized in that be configured in block chain node, described device includes:

Communication module for initiating block synchronization request to inspection node, and checks the number of the synchronization block of node feeding back It signs according to inspection point identification and approval, wherein the checkpoint is identified as the data calculating for checking node according to synchronous block It determines, the approval signature carries out verifying to inspection point identification for other nodes and feeds back to the inspection node；

Data Verification module, it is synchronous according to the checkpoint identity verification if true for the inspection point identification The data validity of block；

Data memory module, the data validity for the synchronous block are verified, then store the number of the synchronous block According to.

16. a kind of equipment, which is characterized in that the equipment includes:

One or more processors；

Storage device, for storing one or more programs；

When one or more of programs are executed by one or more of processors, so that one or more of processors are real Now as any in the data processing method of block chain described in any one of claims 1-8, or realization such as claim 9-13 The method of data synchronization of the block chain.

17. a kind of storage medium, is stored thereon with computer program, which is characterized in that the realization when program is executed by processor Such as data processing method of block chain described in any one of claims 1-8, or realize such as institute any in claim 9-13 The method of data synchronization for the block chain stated.