CN110471953A

CN110471953A - Method, agent node and the medium of accounting nodes are determined in block chain network

Info

Publication number: CN110471953A
Application number: CN201910679099.5A
Authority: CN
Inventors: 李茂材; 王宗友; 孔利; 周开班; 蓝虎; 杨常青; 时一防; 丁勇; 刘区城; 张劲松; 朱耿良; 陈秋平
Original assignee: Shenzhen Intellectual Tax Chain Technology Co Ltd
Current assignee: Shenzhen Intellectual Tax Chain Technology Co Ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2019-11-19
Anticipated expiration: 2038-12-07
Also published as: CN110471953B; CN110471952B; CN109523385A; CN110471952A

Abstract

Present disclose provides a kind of in block chain network determines method, agent node and the medium of accounting nodes.The block chain network includes the accounting nodes sub-network of accounting nodes composition and the service node sub-network of service node composition, and the method is executed by the agent node between the accounting nodes sub-network and the service node sub-network.The described method includes: obtaining the Transaction Information type in the inquiry request of service node；From accounting nodes mark and Transaction Information type mapping table, accounting nodes mark corresponding with the Transaction Information type in inquiry request is searched；From the accounting nodes that the accounting nodes found identify, determines and receive the accounting nodes to cochain Transaction Information.The embodiment of the present disclosure can be improved the reasonability that accounting nodes are determined for the inquiry request of service node.

Description

Method, agent node and the medium of accounting nodes are determined in block chain network

The application be the applying date be on December 7th, 2018, application No. is 201811495811.8, it is entitled " in area The divisional application of the application of method, accounting nodes and the medium of inquiry Transaction Information in block chain network ".

Technical field

This disclosure relates to block chain field, and in particular to a kind of to determine the methods of accounting nodes, generation in block chain network Manage node and medium.

Background technique

Traditional block chain network is divided into two kinds.In the first block chain network, each accounting nodes are transaction again simultaneously Occur to need the node of Transaction Information cochain.In second of block chain network, accounting nodes are only responsible on block chain Book keeping operation, i.e. data cochain, actually occur transaction, need the node of Transaction Information cochain except accounting nodes.When needing to trade When information cochain, need the node of Transaction Information cochain that the Transaction Information for needing cochain is issued corresponding accounting nodes, by remembering Account node is by Transaction Information cochain.

In the first block chain network, each node for needing Transaction Information cochain is exactly accounting nodes, can be seen The details of each data block of cochain on block chain are not wanted to allow the Transaction Information of oneself by uncorrelated enterprise in some enterprises It is helpless when industry inquires.In second of block chain network, need to inquire the node of the data block information on block chain It is inquired on block chain by corresponding accounting nodes, since all accounting nodes all have permission the institute on inquiry block chain There are the details in data block, the node of the data block information needed to inquire on block chain can inquire on block chain All data blocks in details, for need uplink communications maintain secrecy enterprise for can not accomplish information privacy.

The prior art, which lacks one kind, to carry out privacy guarantor to the data of cochain on the basis of shared information is reached common understanding The scheme of shield.

Summary of the invention

One purpose of the disclosure is to propose method, the agent node of a kind of accounting nodes determining in block chain network And medium, it can be improved the reasonability that accounting nodes are determined for the inquiry request of service node.

According to the one side of the embodiment of the present disclosure, a kind of method that accounting nodes are determined in block chain network is disclosed, The block chain network includes the service node sub-network of the accounting nodes sub-network that accounting nodes form and service node composition, The method is executed by the agent node between the accounting nodes sub-network and the service node sub-network, the method packet It includes:

Obtain the Transaction Information type in the inquiry request of service node；

From accounting nodes mark and Transaction Information type mapping table, search and the Transaction Information class in inquiry request The corresponding accounting nodes mark of type；

From the accounting nodes that the accounting nodes found identify, determines and receive the book keeping operation section to cochain Transaction Information Point.

According to the one side of the embodiment of the present disclosure, a kind of agency's section that accounting nodes are determined in block chain network is disclosed Point, the block chain network include the accounting nodes sub-network of accounting nodes composition and the service node subnet of service node composition Network has the agent node, the agent node packet between the accounting nodes sub-network and the service node sub-network It includes:

Transaction Information type acquiring unit, the Transaction Information type in inquiry request for obtaining service node；

Searching unit is used for from accounting nodes mark and Transaction Information type mapping table, lookup and inquiry request In Transaction Information type corresponding accounting nodes mark；

Accounting nodes determination unit, for from the accounting nodes that the accounting nodes that find identify, determine receive it is described to The accounting nodes of cochain Transaction Information.

According to the one side of the embodiment of the present disclosure, a kind of agent node is disclosed, comprising: memory is stored with computer Readable instruction；Processor reads the computer-readable instruction of memory storage, to execute method as described above.

According to the one side of the embodiment of the present disclosure, a kind of computer program medium is disclosed, being stored thereon with computer can Reading instruction makes computer execute method as described above when the computer-readable instruction is executed by the processor of computer.

In the embodiment of the present disclosure, the Transaction Information type in the inquiry request of service node is obtained, is identified from accounting nodes In Transaction Information type mapping table, accounting nodes mark corresponding with the Transaction Information type in inquiry request is searched, From the accounting nodes that the accounting nodes found identify, determines and receive the accounting nodes to cochain Transaction Information.Due to root Determine that inhomogeneous accounting nodes, each accounting nodes are certain types of Transaction Information query service according to Transaction Information type, The specific aim for improving inquiry improves the reasonability that accounting nodes are determined for the inquiry request of service node.

Other characteristics and advantages of the disclosure will be apparent from by the following detailed description, or partially by the disclosure Practice and acquistion.

It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited It is open.

Detailed description of the invention

Its example embodiment is described in detail by referring to accompanying drawing, above and other target, feature and the advantage of the disclosure will It becomes more fully apparent.

Figure 1A -1C shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure Three kinds of architecture figures of the method for information.

Fig. 2A -2C shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure The method of information applies the scene structure under three kinds of supply chain finance, electronic invoice, legal digital cash different application scenarios Frame figure.

Fig. 3 A-3G shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure The method of information applies the service node display interface figure under supply chain financial application scene, these surface charts illustrate supply From Transaction Information cochain to the general procedure for inquiring Transaction Information and verify data block content under chain financial application scene.

Fig. 4 A-4G shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure The method of information applies the service node display interface figure under electronic invoice application scenarios, these surface charts illustrate that electronics is sent out From Transaction Information cochain to the general procedure for inquiring Transaction Information and verify data block content under ticket application scenarios.

Fig. 5 A-5G shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure The method of information applies the service node display interface figure under legal digital cash application scenarios, these surface charts illustrate method Determine under digital cash application scenarios from Transaction Information cochain to the general procedure for inquiring Transaction Information and verify data block content.

Fig. 6 shows the Transaction Information inquired in data block in block chain network according to an embodiment of the present disclosure Method flow chart.

Fig. 7 shows the Transaction Information inquired in data block in block chain network according to an embodiment of the present disclosure Method flow chart.

Fig. 8 shows the Transaction Information inquired in data block in block chain network according to an embodiment of the present disclosure Method flow chart.

Fig. 9 shows the Transaction Information inquired in data block in block chain network according to an embodiment of the present disclosure Method flow chart.

Figure 10 shows the transaction letter inquired in data block in block chain network according to an embodiment of the present disclosure The flow chart of the method for breath.

Figure 11 is shown to be inquired in data block in block chain network according to the determination of an embodiment of the present disclosure Transaction Information method accounting nodes flow chart.

Figure 12 shows the detail flowchart of step 430 in Figure 11 according to an embodiment of the present disclosure.

Figure 13 shows the detail flowchart of step 4303 in Figure 12 according to an embodiment of the present disclosure.

Figure 14 is shown to be inquired in data block in block chain network according to the determination of an embodiment of the present disclosure Transaction Information method accounting nodes flow chart.

Figure 15 shows the detail flowchart of step 530 in Figure 14 according to an embodiment of the present disclosure.

Figure 16 shows the transaction letter inquired in data block in block chain network according to an embodiment of the present disclosure The module frame chart of the accounting nodes of breath.

Figure 17 shows the hardware structure diagrams according to the accounting nodes of an embodiment of the present disclosure.

Specific embodiment

Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, providing these example embodiments makes the disclosure Description will be more full and complete, and the design of example embodiment is comprehensively communicated to those skilled in the art.Attached drawing The only schematic illustrations of the disclosure are not necessarily drawn to scale.Identical appended drawing reference indicates same or like in figure Part, thus repetition thereof will be omitted.

In addition, described feature, structure or characteristic can be incorporated in one or more examples in any suitable manner In embodiment.In the following description, many details are provided to provide filling to the example embodiment of the disclosure Sub-argument solution.It will be appreciated, however, by one skilled in the art that the specific detail can be omitted with technical solution of the disclosure In it is one or more, or can be using other methods, constituent element, step etc..In other cases, it is not shown in detail or retouches Known features, method, realization or operation are stated to avoid a presumptuous guest usurps the role of the host and all aspects of this disclosure is made to thicken.

Some block diagrams shown in the drawings are functional entitys, not necessarily must be with physically or logically independent entity phase It is corresponding.These functional entitys can be realized using software form, or in one or more hardware modules or integrated circuit in fact These existing functional entitys, or these functions reality is realized in heterogeneous networks and/or processor device and/or microcontroller device Body.

Architecture applied by the embodiment of the present disclosure once and overall flow are described with initial reference to Figure 1A -1C below.

Figure 1A shows a kind of architecture of block chain network applied by the embodiment of the present disclosure.Block chain network includes Accounting nodes sub-network 2 and service node sub-network 1.Accounting nodes sub-network 2 includes data block being recorded on block chain Accounting nodes 21.Service node sub-network 1 includes that data block accounting nodes being recorded on block chain is verified Service node 11.It is connected between accounting nodes sub-network 2 and service node sub-network 1 by agent node 12.Agent node 12 It is a service node of service node sub-network 1, but a more special service node.It is responsible for accounting nodes 21 Service node 11 is passed to the information that service node 11 transmits.Service node 11 is to generate the various Transaction Informations for needing cochain Counterparty terminal.They produce Transaction Information, but are recorded directly on block chain without right, it is necessary to be remembered by one Transaction Information is recorded on block chain account node 21.It is kept accounts by a small number of accounting nodes 21 are unified, is also beneficial to the unification of affairs Processing and supervision, and service node 11 can carry out transaction letter via the information that agent node 12 is sent by accounting nodes 21 Cease supervision and the witness of cochain.This in certain node collectives cheatings for both having needed unified supervision but being afraid of supervision thus needs the people It is of great significance in the scene of crowd's supervision.In accounting nodes sub-network 2, each accounting nodes 21 generate a data field After block, it is broadcast to other accounting nodes 21 and knows together, then carry out cochain.In Figure 1A, service node sub-network 1 uses P2P Network mode.P2P network is a kind of Distributed Application framework that task and workload are distributed between fellow (Peer), is A kind of networking or latticed form that P2P computing model is formed in application layer, i.e. " point-to-point " or " end-to-end " network.It can With is defined as: the participant of network shares a part of hardware resource that they are possessed, and (processing capacity, storage capacity, network connect Connect ability, printer etc.), these shared resources can directly be accessed by network offering services and content by other peer nodes Without being subjected to intermediate entities.Participant in this network is both supplier and the resource, clothes of resource, service and content Business obtains taker with content.Therefore, it in service node sub-network 1, is transmitted when agent node 12 is received from accounting nodes 21 The message to come over, peripherad service node 11 are propagated.Around service node 11 receive the message, then to surrounding industry Business node 11 transmits, and propagates layer by layer, has reached the message in the propagation of each service node 11 of service node sub-network 1.

Figure 1B shows the architecture of another kind block chain network applied by the embodiment of the present disclosure.The architecture with The architecture of Figure 1A the difference is that, in service node sub-network 1, do not take P2P network mode, take radio network The mode of network.Agent node 12 receives the message passed over from accounting nodes 21, which is broadcast to service node Other service nodes 11 in network 1.In this way, also achieving the message in each service node 11 of service node sub-network 1 Propagation.

Fig. 1 C shows the architecture of another kind block chain network applied by the embodiment of the present disclosure.The architecture with The architecture of Figure 1A the difference is that, accounting nodes sub-network 2 is divided into multiple branch's accounting nodes sub-networks.Each Branch's accounting nodes sub-network can be responsible for the record of the Transaction Information of a certain seed type.For example, a certain enterprise may have confession Answer chain financial business, it may be necessary to it the contract information generated during supply and marketing, the payment for goods such as buys on dredit information and is recorded on block chain, The enterprise will also issue invoice simultaneously, and also information of making out an invoice, invoice reimbursement information etc. are recorded on block chain.At this moment, in order to Be conducive to the needs that accounting nodes are supervised by same department, the accounting nodes and record of supply chain financial business transaction may be recorded The accounting nodes of transaction during invoice circulation will belong to different departments.For example, record supply chain financial business transaction Accounting nodes are the accounting terminal of bank's setting, and the accounting nodes for recording the transaction during invoice circulation are Administration of State Bureau's settings Accounting terminal.And the transaction during supply chain financial business transaction and record invoice circulation also may be eventually recorded in not On same sub-block chain.At this moment, agent node 12 will be according to the transaction class carried from the Transaction Information that service node 11 is sent Type sends the Transaction Information in branch's accounting nodes sub-network corresponding with the type of transaction.

Fig. 2A shows the transaction letter inquired in data block in block chain network according to an embodiment of the present disclosure The method of breath applies the scene framework map under the application scenarios of supply chain finance.

Supply chain finance is such a business: manufacturing enterprise produces an equipment or product, is often not necessarily oneself Enterprise produce all parts or component part of the equipment or product, the production of some of parts or component part needs outer It wraps to other enterprises and goes to produce.Although manufacturing enterprise has concluded supply and marketing contract with order party in advance, only produce it is whole Payment for goods can be taken when a equipment or product, and the money for purchasing part or component part in this process needs oneself to pad It pays, causes manufacturing enterprise's capital turnover difficulty.Therefore, such a demand is produced, i.e. manufacturing enterprise can be with whole equipment Or product conclude total purchase contract (wherein having cost and ordering party's information) assured to bank, when need to carry out part or When the buying of component part, using the total purchase contract of the whole equipment or product crossed in bank gurantee as foundation, from the equipment or The guarantee of buying of a part for the part or component part is transferred out in the total purchase contract of product in cost.In this way, raw The production for carrying out the part or component part can be trusted at the enterprise of part or component part, due to not having to by bank gurantee Worry that a part of payment for goods transferred out can not receive.Meanwhile manufacturing enterprise does not take out the money really at this time, but wait until Corresponding a part is just paid to the production of part or component part when obtaining the practical payment for goods of the buying side of whole equipment or product Quotient.

In traditional block chain network, due to being provided with all accounting nodes by bank, and this network is closing , each Joint Enterprises on supply and marketing chain are nodes relevant to the data block cochain interests of supply chain finance, cannot but be supervised And witness, the book keeping operation network of the unrelated side of this interests being made of accounting nodes can only be trusted completely.For example, manufacturing enterprise with it is whole The ordering party of a equipment or product has concluded total purchase contract, or has signed a point buying with the generation side of part or component part Contract requires the accounting nodes cochain that these contracts are transmitted to bank's setting.At this moment, each accounting nodes of bank's setting can be with It supervises mutually and witnesses, but each Joint Enterprises on supply and marketing chain cannot be supervised and be witnessed.In addition, in traditional block chain network In, the other any enterprise nodes unrelated with current supply and marketing chain, it is also possible to inquire current supply and marketing by corresponding accounting nodes Any Transaction Information of enterprise's node cochain on chain.Therefore, great Transaction Information leakage hidden danger is brought.

However, in fig. 2, since accounting nodes sub-network 2 and service node sub-network 1 separate, accounting nodes sub-network 2 are exclusively used in keeping accounts, and service node sub-network 1 contains each Joint Enterprises terminal on supply and marketing chain, to the note of accounting nodes 21 Account is witnessed.Once 21 collective of accounting nodes practises fraud, each service node 11 of witness can remain with specific accounting nodes and do evil Evidence.Meanwhile service node, when needing to inquire Transaction Information, not every Transaction Information can be returned to the service node It returns, but according to the permissions data of the service node in its intelligent contract with block chain operator, it is determined whether to the business Node returns to transaction data.In this way, the other any enterprise nodes unrelated with current supply and marketing chain cannot inquire current supply and marketing Any Transaction Information of enterprise's node cochain on chain eliminates Transaction Information leakage hidden danger.

In the example of an automobile SC finance, as shown in Figure 2 A, each service node 11 includes that automaker is whole End, tiremaker terminal, rubber production quotient terminal, vehicle components supplying quotient terminal, banking terminal etc..Automaker and vapour Vehicle ordering party has concluded total purchase contract, transfers to a part to be used for the buying of tire from the cost of total purchase contract, then transfer to Corresponding part is used for the buying of vehicle components.Tiremaker using the contract concluded with automaker as foundation, then from this Transfer to a part for manufacturing the buying of rubber needed for tire in the cost of contract.Relationship is purchased layer by layer in this way, just establishing.

When automaker and automobile ordering party concluded total purchase contract or automaker and tiremaker, Vehicle components supplying agrees vertical point procurement contract or tiremaker and when rubber production agrees vertical point of procurement contract, by phase The Transaction Information answered passes to agent node 12, selects an accounting nodes 21 by agent node 12.Agent node 12 will be corresponding Transaction Information be sent to selection accounting nodes 21 cache.Accounting nodes 21 will not generally be individually for a Transaction Information and be packaged It at a data block cochain, but is packaged according to block and requires (such as gather together enough enough item numbers or size), be packaged into one Data block.In advance to the key of each accounting nodes distribution signature, which is specific for the accounting nodes.Book keeping operation section Point 21 is using the key specific to the accounting nodes, based on being included in a data block on block chain to be added to Transaction Information generates signature.Generate signature method be first in data block Transaction Information generate abstract, then with specific to The key pair abstract of the accounting nodes is signed using signature algorithm.Accounting nodes 21 add the signature of the Transaction Information and generation Enter the data block, cochain after being known together between all accounting nodes 21, while signature being sent out by agent node 12 The each service node 11 being sent in service node sub-network.

It is sent to the Transaction Information that can also have in data block of each service node 11, or transaction letter simultaneously with signature The abstract of breath.

In the case where sending Transaction Information at the same time, service node 11 obtains the key specific to accounting nodes.Non- right In the case where claiming public private key pair, the key that accounting nodes 21 use during book keeping operation is to distribute to note by authentication center (CA) The private key of account node 21.While distributing private key, a public key also is distributed for accounting nodes 21.The public key is stored in certification The heart.Service node 11 can be requested from authentication center to the public key distributed for the accounting nodes 21.This public key is exactly business The key specific to accounting nodes that node 11 is got.Service node 11 is signed described in the key pair and is decrypted, and obtains The abstract of Transaction Information in the data block.Service node 11 believes the transaction in the data block received simultaneously Breath calculates abstract.If calculated abstract is consistent with the abstract that decryption obtains, signature verification success.

In the case where the abstract (such as abstract and signature are placed in block head and send together) for sending Transaction Information at the same time, Service node 11 obtains the key specific to the accounting nodes, such as from authentication center's request to distributing for the accounting nodes 21 Public key.Service node 11 is signed described in the key pair specific to the accounting nodes and is decrypted, and obtains in the data block Transaction Information abstract.If consistent with the abstract that decryption obtains with the abstract that receives simultaneously of signature, signature verification at Function.

At the same time send Transaction Information abstract (such as abstract and signature be placed in block head and send together, which can To be the calculated Merkel's tree root of cryptographic Hash according to the every Transaction Information to be included in the data block) in the case where, Service node 11 does not receive each Transaction Information.When service node 11 will check Transaction Information, need to accounting nodes 21 requests.Each service node 11 has intelligent contract with the signing of block chain operator, there is the power of service node in intelligent contract Limit data.According to the permissions data of the service node 11, the transaction obtained of having the right of the service node in the data block is believed Breath returns to the Transaction Information to the service node 11.The transaction obtained letter is had no right for the service node 11 in the data block Breath only returns to the cryptographic Hash of the Transaction Information to the service node 11.In this way, just having reached the friendship that some units are not intended to oneself The purpose that easy information is seen by unrelated side, improves the privacy of cochain Transaction Information.Since Merkel's tree root is only handed over every The cryptographic Hash of easy information can calculate, in this way, just reaching not only hiding information but also not influencing the content verification in data block Purpose.The service node 11 can calculate cryptographic Hash to the non-concealed Transaction Information got, according to these cryptographic Hash and The cryptographic Hash of the hiding Transaction Information received calculates Merkel's tree root, with the Merkel's tree root ratio for including in block head Compared with if unanimously, illustrating that the content of data block is not tampered with, content verification passes through.And service node 11 can also connect Receive verified from non-concealed Transaction Information the Transaction Information whether with the Transaction Information one of oneself issuing accounting nodes 21 It causes.It is such as inconsistent, illustrate that service node 11 is done evil, has achieved the purpose that supervision.

Illustrate under supply chain financial application scene below with reference to Fig. 3 A-3G from Transaction Information cochain to inquiring and verify big Body process.Fig. 3 A-3G is the Transaction Information inquired in data block in block chain network according to an embodiment of the present disclosure Method apply the service node display interface figure under supply chain financial application scene.

As shown in Figure 3A, B automobile factory is based on A retailer buying 10,000,000 purchase order of B automobile factory, in 10,000,000 2,000,000 go bail for, commission C tire plant produces the tire of 2,000,000 prices.Service node of the business personnel of B automobile factory in B automobile factory After the above Transaction Information of 11 typings, " being submitted to accounting nodes " option is clicked, Transaction Information is sent to note by agent node 12 Account node 21.The Transaction Information to be included in the data block that accounting nodes 21 will be added on block chain is placed on one In a block body.Accounting nodes 21 also generate the abstract of these Transaction Informations, such as Merkel's tree root of Fig. 3 B.Accounting nodes 21 are also Signature is generated based on the Transaction Information in the data block using the key specific to the accounting nodes.By Merkel's tree root, The abstract of previous data block is placed on together in block head on signature and block chain.The number of block head and block body composition cochain According to block, the cochain after all accounting nodes 21 common recognition.

Block hair is also sent to each service node 11 by accounting nodes 21.Merck is shown on the screen of service node 11 The abstract of previous data block on that tree root, signature and block chain, as shown in Figure 3B.At this moment, accounting nodes 21 just obtain special Due to the key (such as by requesting authentication center) of the accounting nodes, sign described in the key pair specific to the accounting nodes It is decrypted, obtains the abstract of the Transaction Information in the data block, i.e. Merkel's tree root.If in the block head received Merkel's tree root and the obtained Merkel's tree root of decryption it is inconsistent, then signature verification fails, and shows interface as shown in Figure 3 C. If Merkel's tree root in the block head received is consistent with Merkel's tree root that decryption obtains, signature verification success is shown Show interface as shown in Figure 3D.Since during above, service node 11 only obtains the block head of data block, does not have also There is the Transaction Information obtained in block head.At this point, asking the user whether to request the friendship in the data block in the interface of Fig. 3 D Easy information.

If user selects "Yes", service node 11 passes through agent node 12 to 21 requests transaction information of accounting nodes.Note Account node 21 obtains the permissions data of the service node from service node and the intelligent contract of block chain operator.For this In data block the service node 11 have the right obtain Transaction Information, to the service node 11 return the Transaction Information, such as Fig. 3 E The specifying information of the specifying information of middle Transaction Information ID 000083, Transaction Information ID 000153；For being somebody's turn to do in the data block Service node 11 haves no right the Transaction Information obtained, Transaction Information, Transaction Information ID 000256 such as Transaction Information ID 000258 Transaction Information, the Transaction Information of Transaction Information ID 078365, Transaction Information ID018387 Transaction Information, only to the business of giving Node 11 returns to cryptographic Hash, as shown in FIGURE 3 E.

After user selects " carrying out content verification " on the interface of Fig. 3 E, for Transaction Information ID 000083 in Fig. 3 E Specifying information, Transaction Information ID 000153 specifying information, service node 11 calculate its cryptographic Hash, then again with receive The cryptographic Hash of Transaction Information of Transaction Information ID 000258, Transaction Information ID 000256 Transaction Information cryptographic Hash, hand over Easily the cryptographic Hash, the cryptographic Hash of the Transaction Information of Transaction Information ID 018387 of the Transaction Information of Information ID 078365 together, are counted Merkel's tree root is calculated, is compared with the Merkel's tree root for including in block head, to carry out content verification.If book keeping operation section The content of 21 tampered data blocks of point, then the Merkel's tree root for including in calculated Merkel's tree root and block head are different It causes, shows the interface of " content verification failure " as illustrated in Figure 3 F.If including in calculated Merkel's tree root and block head Merkel's tree root it is consistent, show the interface of " content verification success " as shown in Figure 3 G.

Fig. 2 B shows the transaction letter inquired in data block in block chain network according to an embodiment of the present disclosure The method of breath applies the scene framework map under the application scenarios of electronic invoice.

In the block chain application scenarios of traditional electronic invoice, Local Tax Bureau provides invoice, enterprise of making out an invoice to enterprise of making out an invoice To neck ticket people invoicing, the reimbursement unit where neck ticket people to neck ticket people submits an expense account invoice.All these transaction require cochain, It is recorded on block chain.But Local Tax Bureau, enterprise of making out an invoice, reimbursement these nodes of unit be not accounting nodes 21.They will entrust Ask corresponding accounting nodes or super node by these transaction records on block chain.All these accounting nodes or super node All it is that national tax department is unified to be arranged.It can supervise mutually and witness between them, but Local Tax Bureau, enterprise of making out an invoice, reimbursement unit These nodes are the immediate parties of invoice, but cannot supervise and witness, and can only trust accounting nodes 21 completely.In addition, any Enterprise can inquire any Transaction Information on block chain by its corresponding accounting nodes.But in some cases, enterprise Invoice relevant information is not intended to be known by other enterprises.In the embodiments of the present disclosure, due to accounting nodes sub-network 2 and business Node sub-network 1 separates, and accounting nodes sub-network 2 is exclusively used in keeping accounts, and service node sub-network 1 contains these invoice interests Relevant node witnesses the book keeping operation of accounting nodes 21.Once 21 collective of accounting nodes practises fraud, each service node of witness 11 can remain with the evidence that specific accounting nodes are done evil.When any one service node 1 needs to inquire the transaction in data block When information, accounting nodes will judge the service node 1 according to the permissions data in its intelligent contract with block chain operator Whether such permission is had.If service node 1 has such permission, Transaction Information could be returned to it, it is on the contrary then do not return Transaction Information.In this way it is ensured that the privacy of cochain Transaction Information.In the case where service node does not have permission, Transaction Information is not returned to the service node, but returns to the cryptographic Hash of Transaction Information, to guarantee that service node utilizes cryptographic Hash Merkel's tree root in block head can equally be verified, achieve the purpose that content verification.

In the example of an electronic invoice, as shown in Figure 2 B, each service node 11 includes make out an invoice unit terminal, claimer Mobile phone, reimbursement unit terminal, Local Tax Bureau's terminal etc..

Local tax bureau provides invoice, unit of perhaps making out an invoice invoicing or claimer to reimbursement unit for unit of making out an invoice When reimbursement, corresponding Transaction Information (transfer of invoice ownership) is passed into agent node 12, by the selection of agent node 12 one A accounting nodes 21.Agent node 12 caches the accounting nodes 21 that corresponding Transaction Information is sent to selection.Then, book keeping operation section Point 21 is packaged according to block to be required to be packaged into data block.Accounting nodes 21 generate label based on the Transaction Information in data block Signature by cochain after the block head of signature addition data block and is sent to service node 11 by name, these processes and combination are schemed Process shown in 2A is similar.

It is sent to the Transaction Information that can also have in data block of each service node 11, or transaction letter simultaneously with signature The abstract of breath.In the case where sending Transaction Information at the same time and simultaneously in the case where forward abstract, in the signature of service node 11 Verification mode is different, but signature verification can be carried out at service node 11.Process shown in this Fig. 2A above in conjunction is similar, It is referred to associated description shown in above combination Fig. 2A.In addition, at the same time in the case where the abstract of transmission Transaction Information, business Node 11 can carry out the content verification of data block, and also process shown in Fig. 2A above in conjunction is similar for verification process, therefore not It repeats.

Fig. 4 A-4G shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure The method of information applies the service node display interface figure under electronic invoice application scenarios, these surface charts illustrate that electronics is sent out Transaction Information cochain, inquiry and the general procedure verified under ticket application scenarios.

As shown in Figure 4 A, on October 22nd, 2018, Liu Shan to rainbow computer company is the purchase of unit one belongs to Hong Sheng company One computer, 3000 yuan of Hua Liao.Rainbow computer company is that Liu Shan has issued an invoice, transaction id 000083.Rainbow computer After staff's typing information above of company, " being submitted to accounting nodes " option is clicked, Transaction Information passes through agent node 12 It is sent to accounting nodes 21.The transaction letter to be included in the data block that accounting nodes 21 will be added on block chain Breath is placed in a block body.Accounting nodes 21 also generate Merkel's tree root and signature, by Merkel's tree root, signature and block The abstract of previous data block is placed on together in block head on chain.Accounting nodes 21 are by data block cochain, and by block hair It is sent to each service node 11.Merkel's tree root is shown on the screen of service node 11, previous number on signature and block chain According to the abstract of block, as shown in Figure 4 B.

Then, accounting nodes 21 carry out signature verification, show the interface of Fig. 4 C or Fig. 4 D according to verification result, and to book keeping operation 21 requests transaction information of node shows the interface of the Transaction Information of acquisition shown in Fig. 4 E or the cryptographic Hash of Transaction Information, then According to the verification result of content verification, the interface of Fig. 4 F-4G is shown respectively.These processes are similar with process shown in Fig. 3 C-3G, Therefore it does not repeat.

Fig. 2 C shows the transaction letter inquired in data block in block chain network according to an embodiment of the present disclosure The method of breath applies the scene framework map under the application scenarios of legal digital cash.

In the scene of the civil digital cash of traditional such as bit coin hereinafter, each pen during the circulation of bit coin Transaction all carries out cochain by the party concerned to trade.Each party concerned both can be used as accounting nodes and carry out uplink operation, can also be with Witness the data block of other node cochains.Since each node is not only used as accounting nodes, but also as witness node, so that the public Trust is compared for the use of this digital cash.However, the digital cash is sent out by official under the scene of legal digital cash Row, it is necessary to it is supervised by official, and the public needs to trust it, prevents accounting nodes collective, official from practising fraud, and produces existing The problem of in terms of the balance for thering is the network system to trust in face of government regulation and the common people.Moreover, in existing bit coin block chain network, Each node is not only used as accounting nodes, but also as witness node, the user of node each in this way can see to be recorded on block chain All Activity information, and the Transaction Information of some units is to be not intended to be exposed to proprietary, and produces secret protection Problem.

In this case, the accounting nodes sub-network of the embodiment of the present disclosure and the separated scheme of service node sub-network, Completely avoid this problem.Firstly, each accounting nodes of accounting nodes sub-network belong to official.It is sent out at any service node The transaction of legal digital cash has been given birth to, block will be recorded by corresponding accounting nodes in the transaction of the legal digital cash On chain.But each service node in service node sub-network can witness the book keeping operation of accounting nodes 21.Once note The cheating of 21 collective of account node, each service node 11 of witness can remain with the evidence that specific accounting nodes are done evil, take into account government Supervision and the common people trust.Meanwhile service node will be closed according to it with the intelligence with block chain operator to inquire Transaction Information Permissions data in about, judges whether it has permission, only just returns to Transaction Information to it when having permission, ensure that cochain The privacy of Transaction Information.When service node does not have permission, although not returning to Transaction Information to it, Transaction Information is returned to Cryptographic Hash, can equally verify Merkel's tree root in block head by the cryptographic Hash, realize content verification.

In the example of a legal digital cash, as shown in Figure 2 C, each service node 11 includes legal digital cash stream Each transaction terminal involved in logical.When sending the Transaction Information of legal digital cash, transaction terminal will trade letter accordingly Breath (transfer of legal digital cash ownership) passes to agent node 12, selects an accounting nodes 21 by agent node 12. Agent node 12 caches the accounting nodes 21 that corresponding Transaction Information is sent to selection.Then, accounting nodes 21 are according to block It is packaged and requires to be packaged into data block.Accounting nodes 21 generate signature based on the Transaction Information in data block, and signature is added Cochain and signature is sent to service node 11 after the block head of data block, these processes and combines process class shown in Fig. 2A Seemingly.

Fig. 5 A-5G shows the transaction inquired in data block in block chain network according to an embodiment of the present disclosure The method of information applies the service node display interface figure under legal digital cash application scenarios, these surface charts illustrate method Determine the general procedure kept accounts and witnessed under digital cash application scenarios.

As shown in Figure 5A, on August 29th, 2018, because X company buys in from Y company the method fixed number of 3000 unit of price The furniture of word currency pays the legal digital cash of 3000 unit of Y company RMB.Handler's typing information above of X company Afterwards, " being submitted to accounting nodes " option is clicked, Transaction Information is sent to accounting nodes 21 by agent node 12.Accounting nodes 21 The Transaction Information to be included in the data block that will be added on block chain is placed in a block body.Accounting nodes 21 also generate Merkel's tree root and signature, together by the abstract of previous data block on Merkel's tree root, signature and block chain It is placed in block head.Accounting nodes 21 are sent to each service node 11 by data block cochain, and by block hair.In business section Shown on the screen of point 11 Merkel's tree root, on signature and block chain previous data block abstract, as shown in Figure 5 B.

Then, accounting nodes 21 carry out signature verification, show the interface of Fig. 5 C or Fig. 5 D according to verification result, and to book keeping operation 21 requests transaction information of node shows the interface of the Transaction Information of acquisition shown in Fig. 5 E or the cryptographic Hash of Transaction Information, then According to the verification result of content verification, the interface of Fig. 5 F-5G is shown respectively.These processes are similar with process shown in Fig. 3 C-3G, Therefore it does not repeat.

As shown in fig. 6, providing one kind according to one embodiment of the disclosure and inquiring data block in block chain network In Transaction Information method.As shown in figs. 1A-1 c, the block chain network includes accounting nodes sub-network 2 and service node Sub-network 1.The accounting nodes sub-network 2 includes the accounting nodes 21 data block being recorded on block chain.The business Node sub-network 1 includes the service node 11 that data block accounting nodes being recorded on block chain is verified.The side Method is executed by an accounting nodes 21 in accounting nodes sub-network 2.The described method includes:

Step 310 receives service node to the inquiry request of the Transaction Information in data block；

Step 320, from the intelligent contract of service node and block chain operator, obtain the permission number of the service node According to；

If step 330 determines that the service node has inquiry to the Transaction Information according to the permissions data of the service node Permission returns to the Transaction Information to the service node, conversely, returning to the cryptographic Hash of the Transaction Information to the service node.

In one embodiment, above-mentioned steps 310-330 can be used as an independent process to execute, that is to say, that Its cochain independent of Transaction Information.That is, can be without other steps before step 310.Even if service node is looked into At all without cochain, step 310-330 can equally be executed the Transaction Information of inquiry, only be inquired in a step 330 less than friendship at this time Easy information returns to null message to service node.

In another embodiment, there is the step of Transaction Information cochain before step 310-330.In the embodiment In, after Transaction Information cochain, service node is sent by the signature that accounting nodes generate Transaction Information, by service node Signature is verified.In signature verification, service node may not obtain entire Transaction Information, may only obtain The abstract of Transaction Information.Signature verification can also be carried out according to abstract.After being verified, service node can request to look into immediately The details of the Transaction Information are ask, i.e., send the inquiry request to Transaction Information to agent node.Agent node receives this After inquiry request, corresponding accounting nodes are forwarded to, for accounting nodes according to the above process, the permissions data based on service node is true It is fixed whether to it to return to Transaction Information.

In the case where having the step of transaction cochain before step 310-330, it is also divided into two kinds of situations.A kind of situation be It trades requests transaction information immediately after cochain, another situation is that service node is not issued to inquire immediately and asked after cochain of trade It asks, but is instructed in response to the user input query of service node, and issue the inquiry request.No matter what kind of situation it is, In In the embodiment, before step 310, the method all includes:

Using the key specific to the accounting nodes, based on being wrapped in a data block on block chain to be added to The Transaction Information included generates signature；

The data block is added in the Transaction Information and the signature of generation, is added on block chain；

By the service node that is sent in the service node sub-network of signing, make service node according to specific to the note Signature described in the key pair of account node carries out signature verification.

Key specific to accounting nodes is to be distributed in advance by authentication center for each accounting nodes, be exclusively used in it to friendship Easy information carries out used key of signing.In general, the process of signature is such that message to be signed applying abstract Operation obtains the abstract of message to be signed, and the key pair abstract encryption then used with signature is signed.To signature When being verified, the key pair signature decryption for needing to use using solution signature has obtained the abstract of message to be signed, then right Message to be signed applies same abstract operation, the abstract redefined again.If decryption after abstract with again Determining abstract is consistent, then signature verification success.By signature verification, it is able to verify that out whether message to be signed is signer Whether issued and message is complete.If the message is not that signer is sent out or message is lost in transmission process A part, signature verification do not pass through.

The key used is signed in the key reconciliation used of signing can be identical, i.e. the situation of symmetric key, can not also phase Together, i.e. the situation of unsymmetrical key.Either which kind of key, in one embodiment, can when each accounting nodes are set up, The key specific to the accounting nodes is requested from accounting nodes to authentication center, it is close to be that accounting nodes generate this by authentication center Key simultaneously stores, and is subsequently sent to the accounting nodes.And service node is in signature verification, it also should be specific to authentication center's request The key of the accounting nodes, authentication center send this key to service node, use for service node signature verification.

In one embodiment, when service node 11 sends Transaction Information to accounting nodes 21 by agent node 12, Agent node 12 can not be eager the Transaction Information that will be received as in a data block on block chain to be added to Including Transaction Information, signature algorithm is applied to the Transaction Information, signature is generated, but places it in caching, is waited Enough Transaction Informations have been cached in caching, that is, have been reached preset block and be packaged requirement (for example, trading in caching to cochain The total size of information reaches predefined size threshold value, and the total number to cochain Transaction Information in caching reaches predetermined item number threshold value) When, just by its dozen in a packet, generate signature, and cochain.The benefit of the embodiment is to improve utilizing for data block to imitate Rate.In a data block, a plurality of Transaction Information may be housed, the data block on block chain is avoided excessively excessively to disperse, Decrease the workload of block chain cochain.

The signature algorithm of signature is generated as described above, including digest algorithm and the encryption to abstract.In one embodiment, Abstract is Merkel's tree root.In this embodiment, based on being included in a data block on block chain to be added to Transaction Information generates Merkel's tree root in the following manner:

Determine the cryptographic Hash of each Transaction Information in data block；

Transaction Information in data block is sorted according to the sequence for entering caching, sequentially comes the transaction letter of odd bits The Transaction Information composition one that breath and sequence later come even bit is right；

The cryptographic Hash of each pair of two Transaction Informations is subjected to Hash operation, obtains the cryptographic Hash of this pair；

It sorts each to according to the sequence for entering caching, sequentially come odd bits comes the to sequence later Two pairs of cryptographic Hash of the centering of each more upper level is carried out Hash fortune by pair to one more upper level of composition of even bit Calculate, obtain this upper one layer pair cryptographic Hash, until obtain most upper one layer pair cryptographic Hash, as Merkel's tree root.

In above process, if the Transaction Information that sequence comes odd bits is the last one Transaction Information in caching, Then by the Transaction Information itself be used as one it is right；If sequence come odd bits to being that the last one is right in caching, by this To pair as more upper level itself.

For example, there are 9 Transaction Informations in caching, it is A1-A9 respectively by the time sequencing for entering caching, is put into data field Cochain in block.A1-A2 forms one to B1, and the cryptographic Hash of cryptographic Hash and A2 to A1 carries out cryptographic Hash operation, obtains the Kazakhstan of B1 Uncommon value；A3-A4 forms one to B2, and the cryptographic Hash of cryptographic Hash and A4 to A3 carries out cryptographic Hash operation, obtains the cryptographic Hash of B2； A5-A6 forms one to B3, and the cryptographic Hash of cryptographic Hash and A6 to A5 carries out cryptographic Hash operation, obtains the cryptographic Hash of B3；A7-A8 For composition one to B4, the cryptographic Hash of cryptographic Hash and A8 to A7 carries out cryptographic Hash operation, obtains the cryptographic Hash of B4；A9 itself is one It is a to B5, the cryptographic Hash of A9 is exactly the cryptographic Hash of B5.

For B1-B5, B1-B2 form a more top to C1, the cryptographic Hash of cryptographic Hash and B2 to B1 carries out Hash It is worth operation, obtains the cryptographic Hash of C1；B3-B4 form more top to C2, the cryptographic Hash of cryptographic Hash and B4 to B3 carries out Cryptographic Hash operation obtains the cryptographic Hash of C2；B5 itself is one to C3, and the cryptographic Hash of B5 is exactly the cryptographic Hash of C3.

For C1-C3, C1-C2 form a more top to D1, the cryptographic Hash of cryptographic Hash and C2 to C1 carries out Hash It is worth operation, obtains the cryptographic Hash of D1；C3 itself is one to D2, and the cryptographic Hash of C3 is exactly the cryptographic Hash of D2.

For D1-D2, the cryptographic Hash of cryptographic Hash and D2 to D1 carries out cryptographic Hash operation, obtains Merkel's tree root.

In one embodiment, data block is divided into block head and block body.Block body is the main body of data block, wherein It include the Transaction Information of data block storage.Block head is the head of data block, does not contain Transaction Information, but contains Ancillary information, including based on the calculated abstract (such as Merkel's tree root) of the All Activity information in notebook data block, label The abstract of name and last data block.The effect of the abstract of last data block is, before including in each data block The information of one data block, and the abstract of the data block itself includes in data block on block chain thereafter.In this way, Each data block is interrelated, once a certain data block is tampered, the data block for including in latter data block Abstract will be not corresponding with it, distorted to identify, ensure that on block chain store information safety.

After data block cochain, by the service node signed and be sent in the service node sub-network, make business section Point signature according to the key pair specific to the accounting nodes carries out signature verification.

Specifically, in the case of include block head and block body in data block, in block head containing above-mentioned abstract and Signature.In one embodiment, service node of the block hair into the service node sub-network can be made into service node The signature in the block head is signed according to the key specific to the accounting nodes, the abstract in the block head that receives Name verifying.

In one embodiment, according to the key specific to the accounting nodes, the abstract in the block head that receives to institute State in block head signature carry out signature verification detailed process include:

Obtain the key specific to the accounting nodes；

It signs and is decrypted described in the key pair specific to the accounting nodes, obtain the transaction letter in the data block The abstract of breath；

If the abstract received is consistent with the abstract that decryption obtains, signature verification success.

The key obtained specific to the accounting nodes can send key request to authentication center using above-described, from Authentication center receives the mode of the key specific to accounting nodes corresponding with the mark, therefore does not repeat.

As shown in fig. 7, before step 310, the method also includes:

Step 301, the intelligent contract for generating service node and block chain operator；

The intelligent contract of generation is synchronized to the storage of each accounting nodes in accounting nodes sub-network by step 302.

In the embodiment, step 302 includes:

Step 3201, from the accounting nodes store the service node and block chain operator intelligent contract in, obtain The permissions data of the service node.

In the embodiment, the intelligent contract of each service node and block chain operator can be stored in accounting nodes subnet In each accounting nodes in network.The benefit of the embodiment is, since intelligent contract is all locally stored in each accounting nodes, significantly Improve the processing speed that Transaction Information or cryptographic Hash are returned to service node.

Intelligent contract is the contract that store various permissions datas of the service node in terms of inquiring Transaction Information, it is industry What business node and block chain operator were concluded in advance.Permissions data includes allowing the power of service node belonging to the Transaction Information of inquiry The corresponding type of transaction of Transaction Information for limiting, allowing the daily permission period for inquiring Transaction Information, allowing to inquire.

Service node permission belonging to the Transaction Information inquired is allowed to refer to being related to the Transaction Information of which service node There is search access right.Service node belonging to Transaction Information refers to the service node of both parties in Transaction Information.For example, in electronics In the transaction of bill billing, the terminal for unit of making out an invoice and the terminal of neck ticket people (claimer) are business sections belonging to the Transaction Information Point, the service node which is related to are the make out an invoice terminal of unit and the terminal of neck ticket people (claimer).For example, , it is specified that service node permission belonging to the Transaction Information for allowing to inquire in the intelligent contract that A node and block chain operator are concluded It is A node, i.e., only A querying node is allowed to be related to the Transaction Information of their own, as long as then A node is the make out an invoice terminal and neck of unit One in the terminal of ticket people (claimer), it is considered as having search access right to the Transaction Information, otherwise without search access right.Example again Such as, it is specified that service node belonging to the Transaction Information for allowing to inquire is weighed in the intelligent contract that A node and block chain operator are concluded Limit is A node and its subordinate unit's node, i.e. A1 node, i.e., only A querying node is allowed to be related to A node and the Transaction Information of A1, As long as then A node or A1 node be make out an invoice unit terminal and neck ticket people (claimer) terminal in one, be considered as to this Transaction Information has search access right, otherwise without search access right.

The daily permission period for inquiring Transaction Information is allowed to refer to allow daily when the inquiry of cochain is traded Information.For example, providing in the intelligent contract that A node is concluded with block chain operator, allow to inquire the daily permission of Transaction Information Period is 9:00-17:00, then only receives A node to the Transaction Information in data block in daily 9:00-17:00 Inquiry request just thinks there is search access right to Transaction Information, otherwise without search access right.

The permissions data includes the corresponding type of transaction of Transaction Information for allowing to inquire.For example, it may be possible to simultaneously same It is the Transaction Information of three kinds of type of transaction of cochain on block chain, i.e. supply chain financial transaction information, electronic invoice Transaction Information, legal Digital cash Transaction Information.For example, providing in the intelligent contract that A node is concluded with block chain operator, allow the transaction inquired The corresponding type of transaction of information is electronic invoice Transaction Information, only when the corresponding type of transaction of Transaction Information is that electronic invoice is handed over When easy information, A node just has search access right, otherwise without search access right.

In one embodiment, step 301 includes:

Contract template is issued, contains contract function in the contract template；

Receive the permissions data of the service node using the contract function setup；

The permissions data is integrated into the contract template, the intelligence of the service node Yu block chain operator is formed Contract.

Contract template is the contract pattern being suitable for for the intelligent contract of all service nodes and block chain operator. Each intelligence contract can apply the pattern, and only wherein specific permissions data is different.It is in intelligent contract It removes with different business node and the format field after different permissions datas.Contract function is the function being arranged in contract, Different permissions datas can be set by calling the function in user.Publication contract template may include sending out to the accounting nodes Cloth contract template also may include all accounting nodes publication contract templates into accounting nodes sub-network.The former the case where Under, the administrator for operating the accounting nodes can define the competence after the concrete condition of audit service node for the service node Data simultaneously input the accounting nodes.In the latter case, the administrator of any one accounting nodes can be in audit business section After the concrete condition of point, defines the competence for the service node and data and input the accounting nodes.

The concrete condition of the service node of audit includes service node operation attribute data etc..Service node runs attribute number According to being the data showed in the operation of service node affiliated unit.In one embodiment, it includes service node operation category The daily work of the service node, service node affiliated unit of property subordinate unit, data service node affiliated unit or scoping unit Period, type of transaction of service node affiliated unit etc..

Each service node is the terminal in a unit.Service node affiliated unit is exactly the unit of the terminal attaching. For example, a computer of bill billing enterprise, as service node, the unit is exactly the bill billing enterprise.The business section Point affiliated unit may be its branch company.In addition, the service node affiliated unit may be a functional department, administration is single Position is exactly all units of functional department administration.For example, the scoping unit of Local Tax Bureau, the city XX can be all lists of paying taxes in the city XX Position.Administrator can be by the service node and the subordinate unit, service node affiliated unit or the business section of scoping unit Point is determined as service node permission belonging to the Transaction Information for allowing to inquire.It, can be with for example, company A is by Liang Ge branch company A1, A2 A, A1, A2 are determined as service node permission belonging to the Transaction Information for allowing to inquire, i.e., when in the both parties of Transaction Information When there is one in A, A1, A2, it is believed that company A has the search access right to the Transaction Information.

The daily working time section of service node affiliated unit refers to service node affiliated unit daily in which period Work.The daily working time section of service node affiliated unit can be determined as allowing to inquire the daily of Transaction Information by administrator Allow the period.For example, company A daily 9:00-17:00 working, if can be to receive the inquiry of company A in 9:00-17:00 Request, it is believed that company A has the search access right to the Transaction Information.

The type of transaction of service node affiliated unit refers to which kind of transaction service node affiliated unit is engaged in.For example, the industry There is supply and marketing chain financial business in business node affiliated unit, then its type of transaction includes supply and marketing chain financial transaction.For example, the service node Affiliated unit's usage fixed number word moneytary operations, then its type of transaction includes legal digital cash transaction.Administrator can be by business The type of transaction of node affiliated unit is determined as the corresponding type of transaction of Transaction Information for allowing to inquire.For example, company A is engaged in confession Chain financial business is sold, if receiving company A to the inquiry request of the supply and marketing chain financial transaction information of a cochain, it is believed that Company A has the search access right to the Transaction Information.

Administrator defines the competence after data, and the permission of the contract function setup service node is just utilized in accounting nodes Data, in this way, the accounting nodes are received by the permissions data of the service node using the contract function setup, it will be described Permissions data is integrated into the contract template, is formed the intelligent contract of the service node Yu block chain operator.

The advantages of embodiment is, contract template provides contract function, allow administrator according to service node the case where it is flexible Permissions data is set, the flexibility of permissions data setting is improved.

In one embodiment, step 301 includes:

It receives the intelligent contract from service node and generates request, the intelligence contract, which generates in request, contains service node Run attribute data；

Attribute data, determining permission corresponding with service node operation attribute data are runed according to the service node Data；

In the embodiment, when service node will generate intelligent contract, sends an intelligent contract and generate request, the intelligence Contract generates in request and runs attribute data containing service node.After accounting nodes receive intelligence contract generation request, root Attribute data is runed according to the service node, automatically determines permissions data corresponding with service node operation attribute data, And the permissions data automatically determined is integrated into the contract template.

The advantages of embodiment is the automation for realizing intelligent contract and generating.

The above-mentioned method for automatically determining permissions data is as follows.

In one embodiment, service node operation attribute data include subordinate unit, service node affiliated unit or The service node of scoping unit, the permissions data include allowing service node permission belonging to the Transaction Information of inquiry.It is described Attribute data, determining permissions data corresponding with service node operation attribute data, packet are runed according to the service node It includes: the service node of the service node and the subordinate unit, service node affiliated unit or scoping unit is determined as permitting Perhaps service node permission belonging to the Transaction Information inquired.

The embodiment and administrator as described above are according to the subordinate unit, service node affiliated unit or scoping unit Service node determines that the method for service node permission belonging to the Transaction Information for allowing to inquire is similar, and only it is straight by machine It connects and the intelligent contract received is generated into the subordinate unit, service node affiliated unit in request or the business section of scoping unit Point and the service node itself are determined directly as service node permission belonging to the Transaction Information for allowing to inquire, realize Determining automation.

In one embodiment, the service node operation attribute data includes the daily work of service node affiliated unit Period, the permissions data include the daily permission period for allowing to inquire Transaction Information.It is described according to the service node Run attribute data, determining permissions data corresponding with service node operation attribute data, comprising: will be belonging to service node The daily working time section of unit is determined as the daily permission period for allowing to inquire Transaction Information.

The embodiment and administrator as described above determine according to the daily working time section of service node affiliated unit to be permitted Perhaps the method for inquiring the daily permission period of Transaction Information is similar, and only it is executed automatically by machine, realizes determination Automation.

In one embodiment, the service node operation attribute data includes the transaction class of service node affiliated unit Type, the permissions data include the corresponding type of transaction of Transaction Information for allowing to inquire.It is described according to the service node operation Attribute data, determining permissions data corresponding with service node operation attribute data, comprising: by service node affiliated unit Type of transaction be determined as allowing the corresponding type of transaction of Transaction Information inquired.

The embodiment allows to inquire with administrator as described above according to the determination of the type of transaction of service node affiliated unit The corresponding type of transaction of Transaction Information method it is similar, only it is executed automatically by machine, is realized determining automatic Change.

In another embodiment, intelligent contract is not to realize each accounting nodes for being stored in accounting nodes sub-network In, but also upper chained record.In this way, can be looked into when each accounting nodes need to obtain permissions data from intelligent contract with cochain It looks for.The advantages of embodiment, is, compared to the intelligence of one each service node of database purchase of each accounting nodes internal maintenance Energy contract, saves the occupancy of intra-node memory space.

As shown in figure 8, in this embodiment, before step 310, which comprises

Intelligent contract block corresponding with the service node is added in the intelligent contract of generation by step 303, is recorded in block On chain.

Correspondingly, step 320 includes:

Step 3202, the intelligence contract block corresponding with the service node from block chain, obtain the service node and area The intelligent contract of block chain operator；

Step 3203, from the intelligence contract, obtain the permissions data of the service node.

The step 301 of Fig. 8 is identical as the step 301 of Fig. 7, therefore does not repeat.

In one embodiment, step 303 includes:

By the intelligent contract of the generation block body for being stored in the intelligence contract block corresponding with service node mark；

Abstract operation and signature operation are applied to generation area block, is made a summary and is signed；

By the abstract of previous block on the abstract, signature and block chain, the block head of intelligent contract block is added；

After the intelligence contract block is known together between all accounting nodes of accounting nodes sub-network, it is recorded in block On chain.

The effect of service node mark is easy for obtaining intelligent contract corresponding with service node in step 3202.

For example preceding combination Fig. 2A -2C of effect of the abstract of previous block, Fig. 3 A-3G, figure on abstract and signature and block chain Described in 4A-4G, Fig. 5 A-5G, therefore do not repeat.

It knows together, has at present many total between all accounting nodes of accounting nodes sub-network about intelligent contract block Know algorithm, therefore does not repeat.

Correspondingly, step 3202 may include:

From the block body of the intelligent contract block recorded on block chain, the mark of the service node is searched；

Obtain intelligence contract corresponding with the mark, the intelligence as the service node and block chain operator in the block body It can contract.

In one embodiment, specific identifier can be added on the block head of intelligent contract block, by the specific mark Knowledge can navigate to intelligent contract block from all data blocks on block chain.The advantages of embodiment is, relative to The mark of searching service node one by one in all data blocks, substantially increases the efficiency of the intelligent contract of searching service node.

It in a step 330, include allowing service node permission belonging to the Transaction Information of inquiry in the permissions data In the case of, the permissions data according to the service node determines that the service node has search access right to the Transaction Information, comprising:

If a both parties at least side in the Transaction Information and business section belonging to the Transaction Information for allowing to inquire In the case where point permission match, determine that the service node has search access right to the Transaction Information.

A both parties at least side in the Transaction Information weighs with service node belonging to the Transaction Information for allowing to inquire Limit matching refers to that at least side of the both parties in the Transaction Information is to allow service node belonging to the Transaction Information of inquiry In one.

For example, service node permission belonging to the Transaction Information inquired is allowed to include service node A, A1, A2.A certain item is handed over Easy information is that an electronic invoice is made out an invoice Transaction Information, and the both sides to make out an invoice make out an invoice unit terminal and claimer's terminal.If opened Having a terminal in ticket unit terminal and claimer's terminal is A perhaps A1 or A2, it is determined that the service node is to the transaction Information has search access right.

In a step 330, include the case where the daily permission period for allowing to inquire Transaction Information in the permissions data Under, the permissions data according to the service node determines that the service node has search access right to the Transaction Information, comprising:

If the receiving time of the inquiry request, in the daily permission period for allowing to inquire Transaction Information, determining should Service node has search access right to the Transaction Information.

For example, the daily permission period of A querying node Transaction Information is allowed to be daily 9:00-17:00, A section is received The time of the inquiry request of point is 15:03, then it is assumed that A node has search access right to the Transaction Information.

In step 330, in the case where the permissions data includes the corresponding type of transaction of the Transaction Information that allows to inquire, The permissions data according to the service node determines that the service node has search access right to the Transaction Information, comprising:

If the type of transaction for including in the inquiry request is the corresponding type of transaction of Transaction Information for allowing to inquire, really The fixed service node has search access right to the Transaction Information.

For example, allowing the corresponding type of transaction of Transaction Information of A querying node by supply chain financial transaction and legal number Moneytary operations.The type of transaction for including in the inquiry request that A node issues is supply chain financial transaction type, then it is assumed that A node There is search access right to the Transaction Information.

Since in a step 330, inquiry request or return Transaction Information or return for service node are traded The cryptographic Hash of information.By the calculation of above-mentioned Merkel's tree root it is found that if it is not known that some transaction in data block are believed Breath, but the cryptographic Hash of these Transaction Informations is specified, it equally can finally calculate above-mentioned Merkel's tree root.Service node calculates Merkel's tree root of the block head of data block for returning of Merkel's tree root and accounting nodes be compared, so that it may in progress Hold verifying.If two Merkel's tree roots are consistent, illustrate that accounting nodes do not distort each Transaction Information.If two silent Ke Er tree root is inconsistent, then there are accounting nodes and distorted some of transaction messages, last service node is caused to recalculate Merkel's tree root and block head in the inconsistent possibility of Merkel's tree root.

As shown in figure 9, in one embodiment, after step 302, the method also includes:

The update of step 304, reception to service node and the intelligent contract of block chain operator；

Step 305 stores each accounting nodes being synchronized in accounting nodes sub-network that update.

In step 302, the intelligent contract of generation is synchronized to each accounting nodes in accounting nodes sub-network and stores it Afterwards, if the operation attribute of service node changes, for example, the affiliated company of service node A only has a branch company before, it is corresponding Service node be A1, now variation be You Liangjia branch company, corresponding service node be A1 and A2, it is necessary to intelligent contract It is updated.At this time, it is necessary to receive the update to intelligent contract, then the update is synchronized in accounting nodes sub-network Each accounting nodes storage.In this way, each accounting nodes in accounting nodes sub-network just remain with newest service node and area The intelligent contract of block chain voice side.

The benefit of the embodiment is that each accounting nodes in accounting nodes sub-network safeguard the intelligence of each service node respectively In the case where energy contract, the intelligent contract of each service node of each accounting nodes maintenance can be quickly updated.

In one embodiment, step 304 includes:

Receive the update of the permissions data of the service node using the contract function setup；

The update of the permissions data is integrated into the contract template, the service node and block chain operator are formed Intelligent contract update.

The mode for issuing contract template is identical as the aforementioned publication mode of contract template when generating intelligent contract.

It receives in the way of the update of the permissions data of the service node of the contract function setup and aforementioned in life It is almost the same in the way of the permissions data of the service node of the contract function setup at being received when intelligent contract, only not Cross which permissions data is changed, only receiving can using the permissions data that these of contract function setup change With.

Similarly, by the update of the permissions data be integrated into the contract template also with when generating intelligent contract by institute It is similar to state the mode that permissions data is integrated into the contract template, therefore does not repeat.

The benefit of above-described embodiment is, can update of the typing to permissions data manually, administrator can be according to industry The concrete condition of business node is flexibly service node setting permissions data, increases the flexibility that intelligent contract updates.

In one embodiment, step 304 includes:

It receives the intelligent contract from service node and updates request, the intelligence contract updates in request containing the industry changed Business node runs attribute data；

Attribute data is runed according to the service node of the variation, it is determining corresponding with service node operation attribute data Permissions data update；

The update of the permissions data is integrated into the contract template, the updated service node and block are formed The intelligent contract of chain operator.

The intelligence contract, which updates, can contain only the service node operation attribute data changed in request, for not changing Operation attribute data can not include.

It is described that attribute data is runed according to the service node of the variation, it is determining to run attribute data with the service node The update of corresponding permissions data is that accounting nodes carry out automatically.It is automatic when the rule automatically updated is with generation intelligence contract The mode for the data that define the competence is similar, only only needs the operation attribute data for considering to change, the determining operation with after the variation The corresponding permissions data of attribute data, the permissions data before replacing.For example, the subsidiary/member companies of company described in service node A is former Come only one, correspond to service node A1, become two A1 and A2 now, at this moment, with the operation attribute data pair after variation The permissions data answered are as follows: allowing to inquire service node belonging to Transaction Information has A, A1 and A2.The permissions data instead before only Allow to inquire the permissions data that service node belonging to Transaction Information is A and A1.

It will be by the power when update of the permissions data is integrated into the contract template also contract intelligent with generation It is similar to the process in the contract template to limit Data Integration, therefore does not repeat.

The advantages of embodiment is the automation for realizing the update to the intelligent contract of service node, is not needed artificial Intervene.

As shown in Figure 10, in one embodiment, after step 303, the method also includes:

The update of step 306, reception to service node and the intelligent contract of block chain operator；

Intelligent contract more new block corresponding with the service node is added in the update by step 307, is recorded in block chain On.

The content of step 306 is identical as step 304, therefore does not repeat.

Due to the data block on block chain be it is not modifiable, if the block data on block chain changes, need It updates, can only remember a data block again.In one embodiment, in step 307, updated intelligent contract can be added Enter intelligent contract more new block corresponding with the service node, is recorded on block chain.In this way, working as accounting nodes to search industry The permissions data of business node, may be in multiple numbers when searching the intelligent contract of service node and block chain operator on block chain According to the intelligent contract for finding service node Yu block chain operator in block, the intelligent contract in a nearest data block is made For updated intelligent contract, decide whether to return to Transaction Information to service node accordingly.

The embodiment in the case where upper chained record, intelligent contract is realized in a manner of faster and is existed after the generation of intelligent contract Update on block chain.

In one embodiment, not only containing the power of service node in the intelligent contract of service node and block chain operator Data are limited, whether are also the information for registering user containing service node.When needing to obtain permissions data to determine whether for business Before node returns to Transaction Information, first obtain whether the service node is the information for registering user from intelligent contract.If not User is registered, then the service node does not return to any number of deals at all without any transaction data of permission inquiry cochain for it According to.If it is registration user, just obtains permissions data and judge whether it is service node return Transaction Information.

The advantages of embodiment is only return to registration user sentencing for the cryptographic Hash of Transaction Information or Transaction Information It is fixed, do not return to any data to nonregistered user, it is therefore prevented that nonregistered user inquires cochain by the method for the embodiment of the present disclosure Transaction Information improves the safety of uplink data inquiry.

In the embodiment, step 320 includes:

From service node and the intelligent contract of block chain operator, obtain whether the service node is the letter for registering user Breath；

If the information indicates that the service node is registration user, closed from the intelligence of service node and block chain operator In about, the permissions data of the service node is obtained.

In one embodiment, one field can be set specific position in intelligent contract.It is 1 in the field, indicates Service node is registration user.The field is 0, indicates that service node is nonregistered user.By the field, the business section is obtained Whether point is the information for registering user.If the field is 1, another from service node and the intelligent contract of block chain operator The field of a storage permissions data, obtains the permissions data of the service node.If the field is 0, do not returned to service node Transaction data.This may include not returning to any data to service node, or return to empty data to service node.Empty data are The structure of only one storage data, but there is no the data of any content in the structure.

It containing service node whether is also the letter for registering user in the intelligent contract of service node and block chain operator In the case where breath, in one embodiment, step 301 includes:

It receives using whether the permissions data of the service node of the contract function setup and the service node are registrations The information of user；

It whether is to register the information of user to be integrated into the contract template by the permissions data and the service node, Form the intelligent contract of the service node Yu block chain operator.

The embodiment with business section is not contained in the intelligent contract of service node and block chain operator as described above Whether point is that the difference of detailed process of step 301 in the case where the information for registering user is:

First, administrator will not only utilize the permissions data of the contract function setup service node, also utilize contract Whether the function setup service node is to register the information of user, and the two is inputted accounting nodes.The contract function can incite somebody to action Both information all are arranged.Before whether the administrator setting service node is to register the information of user, administrator is wanted Whether the querying node service node registered to responsible service node to block chain network is registration user.The method of inquiry can To be that the node registered to responsible service node to block chain network issues inquiry request, and receives and be responsible for service node to block Whether the service node that the node of chain network registration issues is the information for registering user.Service node registration when, to be responsible for The node that service node is registered to block chain network sends registration request, and filling registration information.It is responsible for service node to block The node of chain network registration correspondingly stores the mark of service node with registration information.It, should when receiving inquiry request Inquiry request has the mark of service node, is responsible for whether the node that service node is registered to block chain network is deposited by inquiry The registration information corresponding with the mark of the service node of storage, so that it may judge whether the service node is register node.It is responsible for Service node can be a specified accounting nodes in accounting nodes sub-network to the node that block chain network is registered, can also be with It is a dedicated node except accounting nodes sub-network.

Second, after receiving the two information, the two information are all integrated into the contract template by accounting nodes, shape At the intelligent contract of the service node and block chain operator, rather than only integrate permissions data.

It containing service node whether is also the letter for registering user in the intelligent contract of service node and block chain operator In the case where breath, in another embodiment, step 301 includes:

The node registered to responsible service node to block chain network issues inquiry request；

It receives and is responsible for whether the service node that the node that service node is registered to block chain network issues is registration user Information；

The above process with without containing service node whether be note in the intelligent contract of service node and block chain operator The difference of detailed process of step 301 is in the case where the information of volume user, due in addition to needing including power in intelligent contract Limit data except, it is also necessary to including the service node whether be register user information, in order to obtain the information, need to be responsible for The node that service node is registered to block chain network issues inquiry request, and receives and be responsible for service node to the registration of block chain network Node issue the service node whether be register user information.Issue inquiry request and receive the service node whether be The information and aforementioned administrator for registering user pass through whether contract function setup permissions data and the service node are registration users Information embodiment in administrator obtain the service node whether be register user information process it is identical, only at this In be not to be completed by administrator, and machine is automatically performed.

As described above, according to the Transaction Information inquired in block chain network in data block of an embodiment of the present disclosure Method by accounting nodes sub-network an accounting nodes execute.The accounting nodes are described below in detail selects process.

In one embodiment, as shown in figure 11, the accounting nodes for executing the method are pressed from accounting nodes sub-network It is selected according to following manner.In one embodiment, the inquiry request of service node is first sent to agent node, is pressed by agent node Accounting nodes are selected according to following steps:

Step 410, the processing load for obtaining each accounting nodes in accounting nodes sub-network；

Step 420 determines each accounting nodes in accounting nodes sub-network to the service node for sending the inquiry request Distance；

Step 430 is based on the processing load and the distance, determines and receives the book keeping operation section to cochain Transaction Information Point.

Processing load is the parameter of the burden for the indicating that accounting nodes are being handled of the task.In one embodiment, it handles Load can be measured with the untreated complete number of tasks of accounting nodes.Here task includes Transaction Information cochain task and inquiry Task.These untreated complete number of tasks can represent the processing load of accounting nodes.

In one embodiment, step 410 includes:

It obtains the processing load that each accounting nodes are periodically sent and stores；

The processing load for the accounting nodes that accounting nodes the last time is stored is as the processing of the accounting nodes obtained Load.

That is, in this embodiment, processing load can periodically (for example, every 5 seconds) be sent by each accounting nodes To agent node.Agent node safeguards a processing load meter, and it is fixed that each accounting nodes received are recorded in the processing load meter The processing load of phase broadcast.In this way, agent node can bear the processing for the accounting nodes that accounting nodes the last time stores Processing load of the lotus as the accounting nodes obtained.

In this embodiment, agent node passively receives the processing load that accounting nodes are periodically sent.In another implementation In example, the processing load of agent node active inquiry accounting nodes.In this embodiment, step 410 includes:

Into accounting nodes sub-network, each accounting nodes send processing load inquiry request；

Receive the processing load for the accounting nodes that each accounting nodes are sent.

In one embodiment, it in step 420, determines in accounting nodes sub-network and is looked into described in each accounting nodes to transmission Ask the distance of the service node of request, comprising:

Into accounting nodes sub-network, each accounting nodes and the service node of the transmission inquiry request issue positioning Information request；

Each accounting nodes and transmission institute are received from each accounting nodes and the service node for sending the inquiry request State the location information of the service node of inquiry request；

Using the location information of each accounting nodes and the service node for sending the inquiry request, each book keeping operation section is determined Distance of the point to the service node for sending the inquiry request.

Each service node and accounting nodes may have the positioning systems such as GPS, and therefore, they have from itself The location information of itself can be obtained in GPS positioning system.It, will when receiving the location information requests that agent node is sent The location information of itself obtained from GPS system is sent to agent node.When agent node obtain each accounting nodes and After the location information for sending the service node of the inquiry request, these location informations are utilized, it will be able to determine each book keeping operation section Distance of the point to the service node for sending the inquiry request.

In the above-described embodiments, location information is obtained using the mode by agent node activly request, is born with processing Lotus is the same, the location information can also using from each accounting nodes and send the service node of the inquiry request periodically to The mode that agent node is sent, therefore do not repeat.

The advantages of embodiment, is, when determining the accounting nodes for executing the method, considers not only each book keeping operation section The processing load of point, it is also contemplated that each accounting nodes are with a distance from the service node for sending the inquiry request.Although may The processing load of a certain accounting nodes is minimum, but the accounting nodes may be very from the service node for sending the inquiry request Far, it is chosen as executing the accounting nodes of the method, increases network transmission burden, also reduce query processing speed.It should Embodiment has comprehensively considered distance and processing load, and the book keeping operation section of inquiry is executed than determining according to distance or processing load merely Point scheme, can substantially balanced each accounting nodes processing load and cause too big transmission burden to network.

In one embodiment, as shown in figure 12, step 430 may include:

Step 4301, the processing load based on each accounting nodes in accounting nodes sub-network, determine each book keeping operation First score of node；

Step 4302, the distance based on each accounting nodes in accounting nodes sub-network, determine each accounting nodes The second score；

Step 4303, the first score and the second score based on each accounting nodes determine the book keeping operation for executing the method Node.

In step 4301, based on the processing load of each accounting nodes in accounting nodes sub-network, determine each First score of accounting nodes can take the form for searching pre-set processing load and the first score mapping table.It should Processing load is preset with the first score mapping table, wherein processing load is bigger, the first score is lower.Such as:

Table 1 handles load and the first score mapping table

In step 4302, based on the distance of each accounting nodes in accounting nodes sub-network, each book keeping operation section is determined Second score of point can take the form for searching pre-set distance and the second score mapping table.The distance and second Score mapping table is preset, wherein distance is bigger, the second score is lower.Such as:

Distance	Second score
		Within 50 meters	5
50-200 meters	4
		200-1000 meters	3
1000-5000 meters	2
		5000-20000 meters	1
20000 meters or more	0

2 distance of table and the second score mapping table

There are the first score and the second score of each accounting nodes, so that it may determine according to the first score and the second score Execute the accounting nodes of the method.The advantages of embodiment, is, by the institute of accounting nodes each in accounting nodes sub-network It states the described of each accounting nodes in processing load and accounting nodes sub-network and the side is executed to selection apart from the two factors The influence fractionation of the accounting nodes of method improves the accuracy that selection executes the accounting nodes of the method.

In one embodiment, as shown in figure 13, step 4303 includes:

The weighted sum of step 43031, the first score for determining each accounting nodes and the second score；

Step 43032 is based on the weighted sum, determines the accounting nodes for executing the method.

In step 43031, when determining weighted sum, the weight distributed for the first score and the second score be can be according to warp It tests preset.

In step 43032, the maximum accounting nodes of the weighted sum can be determined as receiving described to cochain transaction Weighted sum can also be greater than in the accounting nodes of predetermined weighted sum threshold value optional one, as reception by the accounting nodes of information The accounting nodes to cochain Transaction Information.It is all load as long as being believed that weighted sum is greater than predetermined weighted sum threshold value Not counting it is too big and apart from the service node sent to cochain Transaction Information not counting too far, which chooses as the execution side The accounting nodes of method are the same.In the latter matter, the equilibrium for also helping load prevents from all selecting in same time The maximum accounting nodes of weighted sum, and cause the obvious overload state of the maximum accounting nodes of the weighted sum.

The advantages of embodiment is the weighted sum of the first score and the second score based on each accounting nodes, and determination connects Receive the accounting nodes to cochain Transaction Information, compared to based on the first score and the second score and/or average value determination connect The scheme for receiving the accounting nodes to cochain Transaction Information has fully taken into account the first score and the second score and determination has been held The otherness of the contribution of the accounting nodes of row the method improves the reasonability for determining the accounting nodes for executing the method.

Above-mentioned determining embodiment the remembering mainly for Figure 1A -1B for receiving the accounting nodes to cochain Transaction Information Account node sub-network end does not have the case where branch's accounting nodes sub-network.But the accounting nodes sub-network end shown in Fig. 1 C is divided into It is then another situation in the embodiment of branch's accounting nodes sub-network.

In this embodiment, Transaction Information type, e.g. supply chain financial transaction or electronics hair are had in inquiry request Ticket transaction or the transaction of legal digital cash.Accounting nodes in accounting nodes sub-network are in advance according to the Transaction Information class of processing Type classification, the accounting nodes of the every one kind being divided into separately constitute corresponding branch accounting nodes sub-network, for example, supply chain Financial transaction branch accounting nodes sub-network or electronic invoice transaction branch's accounting nodes sub-network or legal digital cash are handed over Easily branched accounting nodes sub-network, a kind of each branch's accounting nodes sub-network special disposal transaction class corresponding with type of transaction Type.Therefore, which will be dealt into respective type according to the Transaction Information type carried in inquiry request by agent node In an accounting nodes in branch's accounting nodes sub-network.In order to reach this point, accounting nodes are stored in agent node The Transaction Information type corresponding record of mark and Transaction Information type mapping table, accounting nodes mark and processing is saved in book keeping operation In point identification and Transaction Information type mapping table.

In this embodiment, as shown in figure 14, execute the accounting nodes of the method from accounting nodes sub-network according to Following manner is selected:

Transaction Information type in step 510, acquisition inquiry request；

Step 520, the friendship from accounting nodes mark and Transaction Information type mapping table, in lookup and inquiry request The easily corresponding accounting nodes mark of information type；

Step 530, from the accounting nodes that the accounting nodes that find identify, determine receive it is described to cochain Transaction Information Accounting nodes.

The benefit of the embodiment is to be divided into branch's accounting nodes sub-network for accounting nodes sub-network end shown in Fig. 1 C Architecture, propose it is a kind of be suitble to the architecture reasonable selection execute the method accounting nodes mode.

It in one embodiment, include Transaction Information type in the Transaction Information type field in inquiry request.Step 510 In, can Transaction Information type directly be read from the Transaction Information type field.

Due to being provided with accounting nodes mark and Transaction Information type mapping table on agent node, in one embodiment In, in step 520, from the table, accounting nodes mark corresponding with the Transaction Information type in inquiry request can be found.

As shown in figure 15, in one embodiment, step 530 includes:

Step 5301, the processing load for determining the accounting nodes that the accounting nodes each found identify；

Step 5302 determines the accounting nodes of the accounting nodes mark each found to the business of the transmission inquiry request The distance of node；

Step 5303 is based on the processing load and the distance, determines the accounting nodes for executing the method.

The specific implementation process of step 5301-5303 and the specific implementation process of step 410-430 are similar, and difference is only that Determined in the embodiment of Figure 15 processing load and to the service node for sending the inquiry request distance accounting nodes model Enclose the book keeping operation section of accounting nodes mark corresponding with Transaction Information type in inquiry request that is being only limitted to find in step 520 Point is not all accounting nodes in accounting nodes sub-network, therefore does not repeat.

According to one embodiment of the disclosure, as shown in figure 16, additionally provides one kind and inquire data in block chain network The accounting nodes of Transaction Information in block.The block chain network includes accounting nodes sub-network and service node sub-network. The accounting nodes sub-network includes accounting nodes data block being recorded on block chain, the service node sub-network packet Include the service node verified to the data block that accounting nodes are recorded on block chain.The accounting nodes include:

Inquiry request receiving unit 610, for receiving service node to the inquiry request of the Transaction Information in data block；

Permissions data acquiring unit 620, for obtaining the industry from the intelligent contract of service node and block chain operator The permissions data of business node；

Transaction Information return unit 630, if determining the service node pair for the permissions data according to the service node The Transaction Information has search access right, returns to the Transaction Information to the service node, conversely, returning to transaction letter to the service node The cryptographic Hash of breath.

In one embodiment, the accounting nodes further include:

Intelligent contract generation unit (not shown), for generating the intelligent contract of service node Yu block chain operator；

Synchronization unit (not shown), for the intelligent contract generated to be synchronized to each accounting nodes in accounting nodes sub-network Storage.

Permissions data acquiring unit is further used for: the service node and block chain operator stored from the accounting nodes Intelligent contract in, obtain the permissions data of the service node.

In one embodiment, the accounting nodes further include:

Chain element (not shown) on intelligent contract block, the intelligent contract for that will generate are added corresponding with the service node Intelligent contract block, is recorded on block chain,

Permissions data acquiring unit is further used for:

Intelligence contract block corresponding with the service node, obtains the service node and block chain operator from block chain Intelligent contract；

From the intelligence contract, the permissions data of the service node is obtained.

In one embodiment, intelligent contract generation unit is further used for:

It in one embodiment, include allowing service node permission belonging to the Transaction Information of inquiry in the permissions data In the case where, the permissions data according to the service node determines that the service node has search access right to the Transaction Information, packet It includes: if a both parties at least side in the Transaction Information and service node permission belonging to the Transaction Information for allowing to inquire In matched situation, determine that the service node has search access right to the Transaction Information.

It in one embodiment, include allowing to inquire the feelings of the daily permission period of Transaction Information in the permissions data Under condition, the permissions data according to the service node determines that the service node has search access right to the Transaction Information, comprising: such as The receiving time of the fruit inquiry request determines the service node pair in the daily permission period for allowing to inquire Transaction Information The Transaction Information has search access right.

It in one embodiment, include allowing the feelings for the corresponding type of transaction of Transaction Information inquired in the permissions data Under condition, the permissions data according to the service node determines that the service node has search access right to the Transaction Information, comprising: such as The type of transaction for including in inquiry request described in fruit is the corresponding type of transaction of Transaction Information for allowing to inquire, and determines the business section Point has search access right to the Transaction Information.

In one embodiment, the accounting nodes further include:

Intelligent contract updates receiving unit (not shown), for receiving the intelligent contract to service node and block chain operator Update；

Synchronization unit (not shown) is updated, for depositing each accounting nodes being synchronized in accounting nodes sub-network that update Storage.

In one embodiment, the accounting nodes further include:

Chain element (not shown) in update, for intelligent contract more new district corresponding with the service node to be added in the update Block is recorded on block chain.

In one embodiment, intelligent contract updates receiving unit and is further used for:

In one embodiment, the update to service node and the intelligent contract of block chain operator is received, comprising:

In one embodiment, the accounting nodes further include:

Signature generation unit (not shown), for utilizing the key specific to the accounting nodes, based on block chain to be added to On a data block in be included Transaction Information, generate signature；

Transaction Information and upper chain element (not shown) of signing, for the number to be added in the signature of the Transaction Information and generation According to block, it is added on block chain；

Signature transmission unit (not shown), the service node for the signature to be sent in the service node sub-network, So that service node is signed according to the key pair specific to the accounting nodes and carries out signature verification.

In one embodiment, it is described in block chain network inquire data block in Transaction Information accounting nodes from It is selected in the following way in accounting nodes sub-network:

Obtain the processing load of each accounting nodes in accounting nodes sub-network；

Determine each accounting nodes in accounting nodes sub-network to the service node for sending the inquiry request distance；

Based on the processing load and the distance, the Transaction Information inquired in data block in block chain network is determined Accounting nodes.

In one embodiment, described to be based on the processing load and the distance, determination is inquired in block chain network The accounting nodes of Transaction Information in data block, comprising:

Based on the processing load of each accounting nodes in accounting nodes sub-network, the first of each accounting nodes is determined Score；

Based on the distance of each accounting nodes in accounting nodes sub-network, second point of each accounting nodes is determined Number；

The first score and the second score based on each accounting nodes are determined and are inquired in data block in block chain network Transaction Information accounting nodes.

In one embodiment, first score and the second score based on each accounting nodes is determined in block chain The accounting nodes of the Transaction Information in data block are inquired in network, comprising:

Determine the first score of each accounting nodes and the weighted sum of the second score；

Based on the weighted sum, the accounting nodes that the Transaction Information in data block is inquired in block chain network are determined.

In one embodiment, described to be based on the weighted sum, it determines and is inquired in data block in block chain network The accounting nodes of Transaction Information, comprising:

By the maximum accounting nodes of the weighted sum, it is determined as the transaction letter inquired in data block in block chain network The accounting nodes of breath.

In one embodiment, the Transaction Information type with inquiry in the inquiry request, in accounting nodes sub-network Accounting nodes in advance according to the Transaction Information classification of type of processing, the Transaction Information type of accounting nodes mark and processing is corresponding It is recorded in accounting nodes mark and Transaction Information type mapping table.It is described to be inquired in data block in block chain network The accounting nodes of Transaction Information selected in the following way from accounting nodes sub-network:

Obtain the Transaction Information type in inquiry request；

From accounting nodes mark and Transaction Information type mapping table, search corresponding with the Transaction Information type obtained Accounting nodes mark；

From the accounting nodes that the accounting nodes found identify, the friendship inquired in data block in block chain network is determined The accounting nodes of easy information.

In one embodiment, described from the accounting nodes that the accounting nodes found identify, it determines in block chain network The accounting nodes of Transaction Information in middle inquiry data block, comprising:

Obtain the processing load of the accounting nodes of the accounting nodes mark each found；

Determine the accounting nodes of the accounting nodes mark each found to the transmission inquiry request service node away from From；

In one embodiment, permissions data acquiring unit 620 is further used for:

The method for inquiring the Transaction Information in data block in the block chain network according to the embodiment of the present disclosure can be by The accounting nodes 21 for the Transaction Information of Figure 17 inquired in data block in block chain network are realized.It is retouched referring to Figure 17 State the accounting nodes 21 that the Transaction Information in data block is inquired in block chain network according to the embodiment of the present disclosure.Figure 17 is aobvious The accounting nodes 21 of the Transaction Information inquired in data block in block chain network shown are only an example, should not be to this The function and use scope of open embodiment bring any restrictions.

As shown in figure 17, the accounting nodes 21 of the Transaction Information in data block are inquired in block chain network in terms of general Calculate the form performance of equipment.The component that the accounting nodes 21 of the Transaction Information in data block are inquired in block chain network can be with Including but not limited to: at least one above-mentioned processing unit 810, at least one above-mentioned storage unit 820, the different system components of connection The bus 830 of (including storage unit 820 and processing unit 810).

Wherein, the storage unit is stored with program code, and said program code can be held by the processing unit 810 Row, so that the processing unit 810 executes described in the description section of this specification above-mentioned example method according to the present invention The step of various illustrative embodiments.For example, the processing unit 810 can execute each step as shown in Figure 6.

Storage unit 820 may include the readable medium of volatile memory cell form, such as Random Access Storage Unit (RAM) 8201 and/or cache memory unit 8202, it can further include read-only memory unit (ROM) 8203.

Storage unit 820 can also include program/utility with one group of (at least one) program module 8205 8204, such program module 8205 includes but is not limited to: operating system, one or more application program, other program moulds It may include the realization of network environment in block and program data, each of these examples or certain combination.

Bus 830 can be to indicate one of a few class bus structures or a variety of, including storage unit bus or storage Cell controller, peripheral bus, graphics acceleration port, processing unit use any bus structures in a variety of bus structures Local bus.

The accounting nodes 21 that the Transaction Information in data block is inquired in block chain network can also be with one or more External equipment 700 (such as keyboard, sensing equipment, bluetooth equipment etc.) communication, can also be enabled a user to one or more with This inquires the transaction of the Transaction Information in data block inquired in data block in block chain network in block chain network Information accounting nodes 21 interaction equipment communication, and/or with make the friendship inquired in data block in block chain network Any equipment that the accounting nodes 21 of easy information can be communicated with one or more of the other calculating equipment (such as router, adjust Modulator-demodulator etc.) communication.This communication can be carried out by input/output (I/O) interface 650.Also, in block chain network The accounting nodes 21 of Transaction Information in middle inquiry data block can also pass through network adapter 860 and one or more net Network (such as local area network (LAN), wide area network (WAN) and/or public network, such as internet) communication.As shown, Network adaptation Other moulds that device 860 passes through bus 830 and the accounting nodes 21 for the Transaction Information inquired in data block in block chain network Block communication.It should be understood that although not shown in the drawings, can be in conjunction with the Transaction Information inquired in block chain network in data block Accounting nodes 21 use other hardware and/or software module, including but not limited to: microcode, device driver, redundancy processing Unit, external disk drive array, RAID system, tape drive and data backup storage system etc..

Through the above description of the embodiments, those skilled in the art is it can be readily appreciated that example described herein is implemented Mode can also be realized by software realization in such a way that software is in conjunction with necessary hardware.Therefore, according to the disclosure The technical solution of embodiment can be embodied in the form of software products, which can store non-volatile at one Property storage medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in or network on, including some instructions are so that a calculating Equipment (can be personal computer, server, terminal installation or network equipment etc.) is executed according to disclosure embodiment Method.

In an exemplary embodiment of the disclosure, a kind of computer program medium is additionally provided, computer is stored thereon with Readable instruction makes computer execute the above method and implements when the computer-readable instruction is executed by the processor of computer The method of example part description.

According to one embodiment of the disclosure, a kind of journey for realizing the method in above method embodiment is additionally provided Sequence product, can be using portable compact disc read only memory (CD-ROM) and including program code, and can set in terminal It is standby, such as run on PC.However, program product of the invention is without being limited thereto, in this document, readable storage medium storing program for executing can With to be any include or the tangible medium of storage program, the program can be commanded execution system, device or device use or Person is in connection.

Described program product can be using any combination of one or more readable mediums.Readable medium can be readable letter Number medium or readable storage medium storing program for executing.Readable storage medium storing program for executing for example can be but be not limited to electricity, magnetic, optical, electromagnetic, infrared ray or System, device or the device of semiconductor, or any above combination.The more specific example of readable storage medium storing program for executing is (non exhaustive List) include: electrical connection with one or more conducting wires, portable disc, hard disk, random access memory (RAM), read-only Memory (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.

Computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal, In carry readable program code.The data-signal of this propagation can take various forms, including but not limited to electromagnetic signal, Optical signal or above-mentioned any appropriate combination.Readable signal medium can also be any readable Jie other than readable storage medium storing program for executing Matter, the readable medium can send, propagate or transmit for by instruction execution system, device or device use or and its The program of combined use.

The program code for including on readable medium can transmit with any suitable medium, including but not limited to wirelessly, have Line, optical cable, RF etc. or above-mentioned any appropriate combination.

The program for executing operation of the present invention can be write with any combination of one or more programming languages Code, described program design language include object oriented program language-Java, C++ etc., further include conventional Procedural programming language-such as " C " language or similar programming language.Program code can be fully in user It calculates and executes in equipment, partly executes on a user device, being executed as an independent software package, partially in user's calculating Upper side point is executed on a remote computing or is executed in remote computing device or server completely.It is being related to far Journey calculates in the situation of equipment, and remote computing device can pass through the network of any kind, including local area network (LAN) or wide area network (WAN), it is connected to user calculating equipment, or, it may be connected to external computing device (such as utilize ISP To be connected by internet).

It should be noted that although being referred to several modules or list for acting the equipment executed in the above detailed description Member, but this division is not enforceable.In fact, according to embodiment of the present disclosure, it is above-described two or more Module or the feature and function of unit can embody in a module or unit.Conversely, an above-described mould The feature and function of block or unit can be to be embodied by multiple modules or unit with further division.

In addition, although describing each step of method in the disclosure in the accompanying drawings with particular order, this does not really want These steps must be executed in this particular order by asking or implying, or having to carry out step shown in whole could realize Desired result.Additional or alternative, it is convenient to omit multiple steps are merged into a step and executed by certain steps, and/ Or a step is decomposed into execution of multiple steps etc..

Through the above description of the embodiments, those skilled in the art is it can be readily appreciated that example described herein is implemented Mode can also be realized by software realization in such a way that software is in conjunction with necessary hardware.Therefore, according to the disclosure The technical solution of embodiment can be embodied in the form of software products, which can store non-volatile at one Property storage medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in or network on, including some instructions are so that a calculating Equipment (can be personal computer, server, mobile terminal or network equipment etc.) is executed according to disclosure embodiment Method.

Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by appended Claim is pointed out.

Claims

1. a kind of method for determining accounting nodes in block chain network, which is characterized in that the block chain network includes book keeping operation The accounting nodes sub-network of node composition and the service node sub-network of service node composition, the method is by the accounting nodes Agent node between sub-network and the service node sub-network executes, which comprises

From accounting nodes mark and Transaction Information type mapping table, search and the Transaction Information type pair in inquiry request The accounting nodes mark answered；

From the accounting nodes that the accounting nodes found identify, determines and receive the accounting nodes to cochain Transaction Information.

2. the method according to claim 1, wherein being wrapped in Transaction Information type field in the inquiry request Type containing Transaction Information, it is described obtain service node inquiry request in Transaction Information type, comprising: from the Transaction Information class Type-word section reads Transaction Information type.

3. the method according to claim 1, wherein the accounting nodes identified from the accounting nodes found In, it determines and receives the accounting nodes to cochain Transaction Information, comprising:

Determine the processing load of the accounting nodes of the accounting nodes mark each found；

Determine the accounting nodes of the accounting nodes mark each found to the distance for the service node for sending the inquiry request；

Based on the processing load and the distance, the accounting nodes for executing the method are determined.

4. according to the method described in claim 3, it is characterized in that, the book keeping operation for the accounting nodes mark that the determination is each found The processing load of node, comprising:

It obtains the processing load that the accounting nodes that the accounting nodes each found identify periodically are sent and stores；

The processing load of the accounting nodes for the accounting nodes mark that each of the last storage is found is as the determining note The processing load of account node.

5. according to the method described in claim 3, it is characterized in that, the book keeping operation for the accounting nodes mark that the determination is each found The processing load of node, comprising:

The accounting nodes identified to each accounting nodes found send processing load inquiry request；

Receive the processing load that the accounting nodes of the accounting nodes mark each found are sent.

6. according to the method described in claim 3, it is characterized in that, the book keeping operation for the accounting nodes mark that the determination is each found Distance of the node to the service node for sending the inquiry request, comprising:

The service node of the accounting nodes and the transmission inquiry request that identify to each accounting nodes found issues positioning Information request；

The service node of the accounting nodes and the transmission inquiry request that identify from each accounting nodes found receives each The location information of the service node of the accounting nodes and transmission inquiry request of the accounting nodes mark found；

Utilize the positioning of the service node of the accounting nodes and transmission inquiry request of the accounting nodes mark each found Information determines the accounting nodes of the accounting nodes mark respectively found to the distance for the service node for sending the inquiry request.

7. according to the method described in claim 3, it is characterized in that, described be based on the processing load and the distance, determination Execute the accounting nodes of the method, comprising:

The processing load of accounting nodes based on each accounting nodes mark found, determines first point of each accounting nodes Number；

The distance of accounting nodes based on each accounting nodes mark found, determines the second score of each accounting nodes；

The first score and the second score of accounting nodes based on each accounting nodes mark found, determine and service the inquiry The accounting nodes of request.

8. the method according to the description of claim 7 is characterized in that the book keeping operation based on each accounting nodes mark found The processing load of node, determines the first score of each accounting nodes, comprising:

The processing load of accounting nodes based on each accounting nodes mark found, searches pre-set processing load With the first score mapping table, the first score of the accounting nodes of the accounting nodes mark each found is determined.

9. the method according to the description of claim 7 is characterized in that the book keeping operation based on each accounting nodes mark found The distance of node determines the second score of each accounting nodes, comprising:

The distance of accounting nodes based on each accounting nodes mark found, searches pre-set distance and second point Number mapping table determines the second score of the accounting nodes of the accounting nodes mark each found.

10. the method according to the description of claim 7 is characterized in that the note based on each accounting nodes mark found The first score and the second score of account node determine the accounting nodes for servicing the inquiry request, comprising:

Determine the first score of the accounting nodes of the accounting nodes mark each found and the weighted sum of the second score；

Based on the weighted sum, the accounting nodes for servicing the inquiry request are determined.

11. according to the method described in claim 10, it is characterized in that, it is described be based on the weighted sum, determine service described in look into Ask the accounting nodes of request, comprising: save the maximum book keeping operation of weighted sum described in the accounting nodes of the accounting nodes found mark Point is determined as servicing the accounting nodes of the inquiry request.

12. according to the method described in claim 10, it is characterized in that, it is described be based on the weighted sum, determine service described in look into Ask the accounting nodes of request, comprising: weighted sum in the accounting nodes of the accounting nodes found mark is greater than predetermined weighted sum threshold Optional one in the accounting nodes of value, as the accounting nodes for servicing the inquiry request.

13. a kind of agent node for determining accounting nodes in block chain network, which is characterized in that the block chain network includes The accounting nodes sub-network of accounting nodes composition and the service node sub-network of service node composition, the accounting nodes sub-network There is the agent node between the service node sub-network, the agent node includes:

Searching unit is used for from accounting nodes mark and Transaction Information type mapping table, in lookup and inquiry request The corresponding accounting nodes mark of Transaction Information type；

Accounting nodes determination unit, for determining described in receiving to cochain from the accounting nodes that the accounting nodes found identify The accounting nodes of Transaction Information.

14. a kind of accounting nodes characterized by comprising

Memory is stored with computer-readable instruction；

Processor reads the computer-readable instruction of memory storage, is required described in any of 1-12 with perform claim Method.

15. a kind of computer program medium, is stored thereon with computer-readable instruction, when the computer-readable instruction is calculated When the processor of machine executes, computer perform claim is made to require method described in any of 1-12.