CN109905368A - Across the chain data interaction of block chain and verification method, block catenary system and storage medium - Google Patents
Across the chain data interaction of block chain and verification method, block catenary system and storage medium Download PDFInfo
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Abstract
The present invention relates to block chain correlative technology fields, and in particular to a kind of across the chain data interaction of block chain and verification method, block catenary system and storage medium.Wherein, to include: block chain A obtain the FileHash of original document by the original document that the processing of preset hash algorithm has obtained to across the chain data interactive method of block chain；Block chain A carries out cochain in block chain A to FileHash, obtains the first cochain voucher；After block chain A has carried out the cochain behavior of preset times, block chain A is based on the behavior of preset times cochain and generates block, extracts the Blockhash of block head in block；The interface that block chain A calls block chain B to provide, carries out cochain on block chain B for Blockhash；Blockhash when carrying out cochain on block chain B, is obtained the second cochain voucher by block chain B；Block chain A receives block chain B and returns the second cochain voucher.
Description
Technical field
The present invention relates to block chain correlative technology fields, and in particular to a kind of across the chain data interaction of block chain and authentication
Method, block catenary system and storage medium.
Background technique
Block chain is the database of a decentralization, be to Distributed Storage, point-to-point transmission, common recognition mechanism,
The new application of the computer technologies such as Encryption Algorithm.Block chain includes a string using the associated data generated of cryptography method
Block, the information comprising the transaction of block chain network in each data block.Data interaction between different block chains is known as across chain
Data interaction.Across chain data interaction is the bridge that the block chain isolated island that will be scattered with connects.
It is main to be generated using in transaction when carrying out across chain data synchronous interaction in existing technology, between different blocks chain
While carry out data interaction mode.Under this mode often by data interaction in block chain network, data are synchronous
Frequently, block catenary system degraded performance is caused.Data interaction is carried out through the above way simultaneously, can leak the quantity of transaction, and
The leakage of the quantity of transaction is easy exposure business secret.
Summary of the invention
In view of this, in order to solve the problems, such as that present in the relevant technologies, the present invention provides one kind at least to a certain extent
Across the chain data interaction of block chain and verification method, block catenary system and storage medium.
The present invention adopts the following technical scheme:
Based on the application in a first aspect, the application provides a kind of across chain data interactive method of block chain.
Across the chain data interactive method of block chain provided by the present application includes:
Block chain A obtains the file Hash of original document by the original document that the processing of preset hash algorithm has obtained
FileHash；
The block chain A carries out cochain in block chain A to the FileHash, obtains the first cochain voucher；
After block chain A has carried out the cochain behavior of preset times, block chain A is raw based on the preset times cochain behavior
At block, the Blockhash block Hash of block head in the block is extracted；
The interface that the block chain A calls block chain B to provide, carries out cochain on block chain B for the Blockhash；
The Blockhash when carrying out cochain on the block chain B, is obtained the second cochain voucher by the block chain B；
Block chain A receives block chain B and returns the second cochain voucher.
Optionally, the data transmitted when the block chain A and the block chain B data interact are to be calculated by preset encryption
The encrypted data of method.
Optionally, the predetermined encryption algorithm is keying Hash HmacSHA256 algorithm, the close SM serial algorithm of state or symmetrical
Encryption Algorithm.
Optionally, the symmetric encipherment algorithm includes: AES-128 algorithm, AES-192 algorithm or AES-256 algorithm.
Based on the application second aspect, the application provides a kind of across the chain data interaction of block chain and verification method.
Across the chain data interaction of block chain provided by the present application and verification method, comprising:
Block chain A obtains the file Hash of original document by the original document that the processing of preset hash algorithm has obtained
FileHash；
The block chain A carries out cochain in block chain A to the FileHash, obtains the first cochain voucher；
After block chain A has carried out the cochain behavior of preset times, block chain A is raw based on the preset times cochain behavior
At block, the Blockhash block Hash of block head in the block is extracted；
The interface that the block chain A calls block chain B to provide, carries out cochain on block chain B for the Blockhash；
The Blockhash when carrying out cochain on the block chain B, is obtained the second cochain voucher by the block chain B；
Block chain A receives block chain B and returns the second cochain voucher；
The block chain A to the block chain B send original document, the first cochain voucher and second cochain with
Card；
The block chain B is based on the first cochain voucher, calls the interface of the block chain A, obtains the block chain A
Described in original document FileHash where block Blockhash；
The block chain B is based on the second cochain voucher, obtains the Blockhash stored in the block chain B；
The Blockhash of block where the block chain B judges the FileHash of original document described in the block chain A
It is whether identical as the Blockhash that is stored in the block chain B, obtain the first judging result of yes/no；
If the first judging result is interface yes, that the block chain B is provided by the block chain A, the first cochain is used
FileHash of the acquisition of credentials original document on the block chain A, and determine and used when the block chain A calculates FileHash
Target hash algorithm；
The block chain B counts the block chain A received the original document sent by the target hash algorithm
It calculates, obtains FileHash；
The original document FileHash that block chain B judgement is obtained by the first cochain voucher in block chain A with it is described
Whether the FileHash being calculated is identical, obtains the second judging result of yes/no；
If the second judging result be it is yes, be verified.
Optionally, the block chain A and data transmitted are by preset when block chain B data interaction and verifying
The encrypted data of Encryption Algorithm.
Optionally, the predetermined encryption algorithm is keying Hash HmacSHA256 algorithm, the close SM serial algorithm of state or symmetrical
Encryption Algorithm.
Based on the application third aspect, the application provides a kind of block catenary system.
Block catenary system provided by the present application, including at least two block chains, across the chain number of any two in the system
According to across the chain data interactive method of block chain that interactive block chain application the application first aspect provides, or, in the system
Across the chain data interaction of block chain and verifying that any two are provided across block chain application the application second aspect of chain data interaction
Method.
Optionally, the either block chain in the system includes processor and memory；
The processor and memory communicate to connect；
Wherein, the processor, for calling and executing the program stored in the memory；
The memory, for storing program, described program is at least for realizing the offer of any one of such as Claims 1 to 4
Each step of the block chain across chain data interactive method, or, realize the block chain that is provided such as any one of claim 5~7 across
Each step of chain data interaction and verification method.
Based on the application fourth aspect, the application provides a kind of storage medium.
Computer program is stored on storage medium provided by the present application, when the computer program is executed by processor,
Each step of the block chain across chain data interactive method provided such as the application first aspect is realized, or, realizing such as the application the
Each step of across the chain data interaction of block chain and verification method that two aspects provide.
The invention adopts the above technical scheme, and block chain A handles the original document obtained by preset hash algorithm
After obtaining the file Hash FileHash of original document, cochain is carried out in block chain A to FileHash, obtains the first cochain voucher
(i.e. primary transaction), at this time and without the data interaction between block chain, but in the cochain behavior for having carried out preset times
After (transaction), the information based on above-mentioned multiple cochain behavior of block chain A forms block and specially mentions at this point, just interacting
The Blockhash of block is taken, the interface for calling block chain B to provide makes Blockhash carry out cochain in block chain B, obtains second
Cochain voucher；Block chain B returns the second cochain voucher to block chain A.So just complete across a chain data interaction of block chain.?
That is all carrying out once across chain data interaction in the scheme that the application proposes after not carrying out cochain every time, but carrying out
After the cochain behavior of preset times, primary across chain data interaction is carried out.The number of data interaction can be so reduced, number is reduced
According to synchronous frequency, block catenary system performance is improved.It, can not be by between block chain meanwhile in method provided by the present application
The number of data interaction judges that block chain A carries out the number of cochain, effectively shields the details of transaction, guarantees block chain A
The number for carrying out cochain will not expose, and avoid exposing business secret because block chain A carries out the exposure of the number of cochain.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is flow diagram of the block chain across chain data interactive method that the embodiment of the present invention one provides；
Fig. 2 is the flow diagram of block chain provided by Embodiment 2 of the present invention across chain data interaction and verification method；
Fig. 3 is the configuration diagram figure of block chain provided by Embodiment 2 of the present invention across chain data interaction and verification method.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment one
Fig. 1 is flow diagram of the block chain across chain data interactive method that the embodiment of the present invention one provides.Such as Fig. 1 institute
Show, across the chain data interactive method of block chain provided in this embodiment, comprising:
S101, block chain A obtain original document by the original document that the processing of preset hash algorithm has obtained
FileHash；
It is to be understood that including block chain (that is: the application text for issuing data in across a chain data interaction of block chain
Block chain A in part) and receive data block chain (that is: the block chain B in present specification).
S102, block chain A carry out cochain in block chain A to FileHash, obtain the first cochain voucher；
Wherein, cochain refers to Hash (i.e. FileHash) and the time etc. that file is saved on block chain.
S103, after block chain A has carried out the cochain behavior of preset times, block chain A is based on the behavior of preset times cochain
Block is generated, the Blockhash of block head in block is extracted；
Wherein, preset times (that is: the number of deals for including in a block in block chain network) can be by being arranged block
Size set.
The interface that S104, block chain A call block chain B to provide, carries out cochain on block chain B for Blockhash；
That is: block chain A sends Blockhash to block chain B, carries out cochain to Blockhash by block chain B.
Blockhash when carrying out cochain on block chain B, is obtained the second cochain voucher by S105, block chain B；
S106, block chain A receive block chain B and return the second cochain voucher.
Across the chain data interactive method of block chain provided in an embodiment of the present invention can be applied to include at least two block chains
Block catenary system, wherein any two in the system can be implemented above-described embodiment across the block chain of chain interaction and mention
The technical solution of confession, in addition, the either block chain in block chain of any two across chain interaction can at least execute block
Chain A or B the step of.That is, the either block chain in block chain of any two across chain interaction can be in not homogeneous
Across chain data interaction in execute block chain A the step of or execute block chain B the step of.Such as a block chain is once across chain
The step of block chain A is executed when data interaction, the step of block chain B can be executed in another time across chain data interaction.
It is illustrated by taking specific across a chain data interaction of block chain as an example based on above-mentioned steps: being handed in once across chain data
It include the block chain (that is: the block chain A in present specification) for issuing data and block chain (that is: this Shen for receiving data in mutually
It please block chain B in file).
Step in referring to Fig.1, specific implementation procedure are as follows:
Block chain A obtains original document, and extracts the FileHash of original document；
It is understood that the FileHash of original document is to handle original document by default hash algorithm to obtain.
" hash " is done in Hash, general translation, and also having direct transliteration is " Hash ", and exactly the input of random length (is called to do and be trade-showed
Penetrate pre-image) output of regular length is transformed by hashing algorithm, which is exactly hashed value.This conversion is a kind of
Compression mapping, it is, the space of hashed value is generally much less than the space inputted, different inputs may hash to identical
Output, it is impossible to unique input value is determined from hashed value.It is briefly exactly a kind of message pressure by random length
It is reduced to the function of the eap-message digest of a certain regular length.
Block chain A carries out cochain in block chain A to FileHash, obtains the first cochain voucher；Cochain refers in area herein
Hash (i.e. FileHash) and the time etc. of file are saved on block chain；
It should be noted that block chain A is simultaneously indirect after completing the uplink operation for the FileHash of original document
Data interaction is carried out with other block chains, but judges whether block chain A is carrying out the cochain behavior of preset times and be based on
The cochain behavior of preset times simultaneously generates block, if judging result be it is no, wait to the FileHash of alternative document into
Row uplink operation if the determination result is YES then carries out across chain data interaction.
After block chain A has carried out the cochain behavior of preset times, the block of block chain A is based on the behavior of preset times cochain
Generate block；Extract the Blockhash block Hash of block head in block；
Wherein, (that is: the block chain A for including in a block Block in block chain network carries out uplink operation to preset times
Quantity) can be set by the way that the block size of block chain A is arranged.
Block chain A, the interface for calling block chain B to provide make Blockhash carry out cochain in block chain B, obtain on second
Chain voucher；Block chain B returns the second cochain voucher to block chain A.
Such Blockhash carries out cochain in block chain B, completes across the chain data interaction of block chain.
The invention adopts the above technical scheme, and block chain A handles the original document obtained by preset hash algorithm
After obtaining the FileHash of original document, FileHash is subjected to cochain in block chain A, it is (i.e. primary to obtain the first cochain voucher
Transaction), at this time and without the data interaction between block chain, but in the cochain behavior (transaction) for having carried out preset times
Afterwards, the information based on above-mentioned multiple cochain behavior of block chain A forms block, at this point, just interacting, specially extracts block
Blockhash, call block chain B provide interface, make Blockhash block chain B carry out cochain, obtain the second cochain with
Card；Block chain B returns the second cochain voucher to block chain A.So just complete across a chain data interaction of block chain.Namely
Say, in the scheme that the application proposes, all carry out once across chain data interaction after not carrying out cochain every time, but carried out it is pre-
If after the cochain behavior of number, carrying out once across chain data interaction.The number of data interaction can be so reduced, it is same to reduce data
The frequency of step improves block catenary system performance.Meanwhile in method provided by the present application, data between block chain can not be passed through
Interactive number judges that block chain A carries out the number of cochain, effectively shields the details of transaction, guarantees that block chain A is carried out
The number of cochain will not expose, and avoid exposing business secret because block chain A carries out the exposure of the number of cochain.
In order to further ensure the safety of data, the leakage of interaction data is prevented.In the application providing method, block chain it
Between to be used for the data transmitted when data interaction be by the encrypted data of preset Encryption Algorithm.It is arranged such through encryption number
According to being authenticated and guaranteed communication security.
Wherein, the Encryption Algorithm used when data interaction between block chain network can be calculated for keying Hash HmacSHA256
Method, the close SM serial algorithm of state or symmetric encipherment algorithm.Symmetric encipherment algorithm include: AES-128 algorithm, AES-192 algorithm or
AES-256 algorithm.
Embodiment two
Fig. 2 is the flow diagram of block chain provided by Embodiment 2 of the present invention across chain data interaction and verification method；Ginseng
According to Fig. 2, across the chain data interaction of block chain provided in this embodiment and verification method, comprising:
S201, block chain A obtain the file of original document by the original document that the processing of preset hash algorithm has obtained
Hash FileHash；
It is to be understood that including block chain (that is: the application for issuing data in across a chain data interaction of block chain
Block chain A in file) and receive data block chain (that is: the block chain B in present specification).
S202, block chain A carry out cochain in block chain A to FileHash, obtain the first cochain voucher；
Wherein, cochain refers to Hash (i.e. FileHash) and the time etc. that file is saved on block chain.
S203, after block chain A has carried out the cochain behavior of preset times, block chain A is based on the behavior of preset times cochain
Block is generated, the Blockhash block Hash of block head in block is extracted；
Wherein, preset times (that is: the number of deals for including in a block Block in block chain network) can pass through setting
The size of block Block is set.
The interface that S204, block chain A call block chain B to provide, carries out cochain on block chain B for Blockhash；
That is: block chain A sends Blockhash to block chain B, carries out cochain to Blockhash by block chain B.
Blockhash when carrying out cochain on block chain B, is obtained the second cochain voucher by S205, block chain B；
S206, block chain A receive block chain B and return the second cochain voucher.
It is to be understood that mainly including two parts in method provided in this embodiment: a part is that S201~S206 is retouched
The data interaction part stated；Another part is the data verification part of S207~S214 description.
S207, block chain A send original document, the first cochain voucher and the second cochain voucher to block chain B；
Wherein, it is original document to be verified that block chain A, which sends original document to block chain B, in step S207；On first
Chain voucher is the first cochain voucher in step S202；Block chain A receives block chain B passback second in second cochain voucher S206
Cochain voucher.
S208, block chain B are based on the first cochain voucher, call the interface of block chain A, obtain original document in block chain A
FileHash where block Blockhash；
Wherein, the Blockhash of block where the FileHash of original document is the block generated in S203 in block chain A
Blockhash.
S209, block chain B are based on the second cochain voucher, obtain the Blockhash stored in block chain B；
Wherein, the Blockhash stored in block chain B is to be sent out in step S204 and S205 from block chain A to block chain B
It send, and carries out the Blockhash of cochain by block chain B.
The Blockhash and block of block where S210, block chain B judge the FileHash of original document in block chain A
Whether the Blockhash stored in chain B is identical, obtains the first judging result of yes/no；
So set, first verifying that the first cochain voucher original document in block chain A when carrying out data verification
Whether the Blockhash stored in the Blockhash and block chain B of block where FileHash is identical.If judging result is not
It is identical, it is determined that verifying does not pass through, without carrying out next step verifying, simplifies verification step；If judging result be it is identical, carry out
The verifying of next step.
S211 uses the first cochain voucher if the first judging result is interface yes, that block chain B is provided by block chain A
FileHash of the original document on block chain A is obtained, and obtains block chain A and calculates the target Hash calculation used when FileHash
Method；
Wherein, the target hash algorithm obtained herein is calculated when calculating FileHash for block chain A using preset Hash
Method.
S212, block chain B calculate the block chain A received the original document sent by target hash algorithm,
Obtain FileHash；
S213, block chain B judgement in the obtained original document FileHash of block chain A and are calculated by the first cochain voucher
Whether obtained FileHash is identical, obtains the second judging result of yes/no；
S214, if the second judging result be it is yes, be verified.
So set, first verifying that the first cochain voucher original document in block chain A when carrying out data verification
Whether the Blockhash stored in the Blockhash and block chain B of block where FileHash is identical.If judging result is not
It is identical, it is determined that verifying does not pass through, without carrying out next step verifying, simplifies verification step；If judging result be it is identical, carry out
The verifying of next step.The FileHash and block chain for the original document in block chain A that the interface for calling block chain A to provide obtains
Whether the FileHash that B is calculated is identical, is then verified if they are the same.The application, which provides, uses dual test in flat scheme
Card, ensure that the reliability of data verification.
In order to more clearly demonstrate across the chain data interaction of block chain provided by the present application and verification method, below specifically to show
The mode of example, the elaboration that across the chain data interaction of block chain of the application and verification method are more intuitively changed.
Referring to Fig. 3, Fig. 3 is the framework of block chain provided by Embodiment 2 of the present invention across chain data interaction and verification method
Schematic diagram.For the data interaction and verifying between at least two block chains, as shown in figure 3, block chain provided in this embodiment
Across chain data interaction and verification method, comprising:
1. referring to the arrow in Fig. 3, block chain A obtains original document, handles original document by preset hash algorithm
The FileHash of original document is obtained, FileHash is subjected to cochain.The uplink operation is n-th of block (Block in Fig. 3
Header n) in Tx2, while obtaining this document in the first cochain voucher of block chain A.When n-th of block is preset
After the uplink operation of number, Tx1~Txm is contained inside n-th of block.N-th of block can be extracted at this time removes block head
In BlockHash.And execute the arrow in Fig. 3 2.
2. referring to the arrow in Fig. 3, block chain A calls the interface of block chain network B, by n-th block in block chain A
BlockHash is saved in block chain network B, while obtaining the second cochain voucher of block chain B return.It is safeguarded in block chain B
The mapping relations of second cochain voucher and the Block Hash of n-th of the block for the block chain A that cochain is carried out in block chain B.
The above process is process of the block chain across chain data interaction.Next mistake of the block chain across chain data verification is introduced
Journey:
3. referring to the arrow in Fig. 3, in data verification, the original document of the cochain in block chain network A is submitted to
Block chain network B.It also needs to submit this document block where the voucher of the first cochain, this document cochain in block chain A simultaneously
The the second cochain voucher obtained when the BlockHash interaction of the block head of chain A is to block chain B
The interface that block chain B uses the first cochain voucher to call block chain A to provide as parameter, obtains this document in block
The BlockHash of n-th of block of block chain A in the BlockHash of the block of chain A cochain, i.e. Fig. 3.Meanwhile block chain B is logical
The mapping relations of the second cochain voucher with the block head BlockHash for the block chain A that cochain is carried out in block chain B are crossed, obtaining can
With the BlockHash of n-th of block of the block chain A stored on block chain B, i.e., in the Tx2 of the 2nd of block chain B the block
The BlockHash of storage.Whether consistent compare the two BlockHash.It is 4. representative that arrow in Fig. 3 is carried out if consistent
Step is verified if inconsistent and is not passed through.
4. referring to arrow in Fig. 3, the interface that block chain B uses the first cochain voucher to call block chain A to provide as parameter,
Obtain the FileHash of preservation of the original document in block chain A, it may be assumed that the Tx2 of n-th of block of block chain A, and obtain block
How the target hash algorithm of the FileHash is calculated in chain A.
Target hash algorithm obtained in block chain B use and original document recalculate the FileHash of this document
Compare based on the first cochain voucher FileHash obtained in the block chain A and is calculated by original document
Whether FileHash is consistent, if unanimously, data verification passes through.
The application also provides a kind of block catenary system, including multiple block chains, which is characterized in that block provided by the present application
Across the chain data interactive method of chain, and/or, using across the chain data interaction of block chain provided by the present application and verification method.
Further, the either block chain in block catenary system provided in an embodiment of the present invention includes processor and storage
Device；
Processor and memory communicate to connect；
Wherein, processor, for calling and executing the program stored in memory；
Memory, for storing program, program is at least handed over for realizing across the chain data of block chain that such as embodiment one provides
Each step of mutual method, or, realizing each step for across the chain data interaction of block chain and verification method that embodiment two provides.
Specifically, block chain includes block chain node, optionally, processor and memory can be configured to block chain link
Point.
The application also provides a kind of storage medium.It is stored with computer program on storage medium provided by the present application, calculates
When machine program is executed by processor, such as each step of the block chain provided by the present application across chain data interactive method is realized, or, real
Now such as each step of block chain provided by the present application across chain data interaction and verification method.
The specific implementation of the present embodiment may refer to the related description in above-described embodiment, and details are not described herein again.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction executing device with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
Suddenly be that relevant hardware can be instructed to complete by program, program can store in a kind of computer readable storage medium
In, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.If integrated module with
The form of software function module is realized and when sold or used as an independent product, also can store computer-readable at one
It takes in storage medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of across chain data interactive method of block chain characterized by comprising
Block chain A obtains the file Hash of original document by the original document that the processing of preset hash algorithm has obtained
FileHash；
The block chain A carries out cochain in block chain A to the FileHash, obtains the first cochain voucher；
After block chain A has carried out the cochain behavior of preset times, block chain A is based on the preset times cochain behavior generation area
Block extracts the Blockhash block Hash of block head in the block；
The interface that the block chain A calls block chain B to provide, carries out cochain on block chain B for the Blockhash；
The Blockhash when carrying out cochain on the block chain B, is obtained the second cochain voucher by the block chain B；
Block chain A receives block chain B and returns the second cochain voucher.
2. the method according to claim 1, wherein being passed when the block chain A and block chain B data interaction
Defeated data are to pass through the encrypted data of preset Encryption Algorithm.
3. according to the method described in claim 2, it is characterized in that, the predetermined encryption algorithm is keying Hash HmacSHA256
Algorithm, the close SM serial algorithm of state or symmetric encipherment algorithm.
4. according to the method described in claim 3, it is characterized in that, the symmetric encipherment algorithm include: AES-128 algorithm,
AES-192 algorithm or AES-256 algorithm.
5. a kind of across the chain data interaction of block chain and verification method characterized by comprising
Block chain A obtains the file Hash of original document by the original document that the processing of preset hash algorithm has obtained
FileHash；
The block chain A carries out cochain in block chain A to the FileHash, obtains the first cochain voucher；
After block chain A has carried out the cochain behavior of preset times, block chain A is based on the preset times cochain behavior generation area
Block extracts the Blockhash block Hash of block head in the block；
The interface that the block chain A calls block chain B to provide, carries out cochain on block chain B for the Blockhash；
The Blockhash when carrying out cochain on the block chain B, is obtained the second cochain voucher by the block chain B；
Block chain A receives block chain B and returns the second cochain voucher；
The block chain A sends original document, the first cochain voucher and the second cochain voucher to the block chain B；
The block chain B is based on the first cochain voucher, calls the interface of the block chain A, obtains institute in the block chain A
The Blockhash of block where stating the FileHash of original document；
The block chain B is based on the second cochain voucher, obtains the Blockhash stored in the block chain B；
The Blockhash of block and institute where the block chain B judges the FileHash of original document described in the block chain A
State whether the Blockhash stored in block chain B is identical, obtains the first judging result of yes/no；
If the first judging result be it is yes, the block chain B passes through the interface that the block chain A is provided, using the first cochain voucher,
FileHash of the original document on the block chain A is obtained, and obtains the block chain A and calculates the mesh used when FileHash
Mark hash algorithm；
The block chain B calculates the block chain A received the original document sent by the target hash algorithm, obtains
To FileHash；
The block chain B judgement is by the first cochain voucher in the obtained original document FileHash of block chain A and the calculating
Whether obtained FileHash is identical, obtains the second judging result of yes/no；
If the second judging result be it is yes, be verified.
6. according to the method described in claim 5, it is characterized in that, the block chain A and the block chain B data interaction and test
The data transmitted when card are to pass through the encrypted data of preset Encryption Algorithm.
7. according to the method described in claim 6, it is characterized in that, the predetermined encryption algorithm is keying Hash HmacSHA256
Algorithm, the close SM serial algorithm of state or symmetric encipherment algorithm.
8. a kind of block catenary system, including at least two block chains, which is characterized in that across the chain number of any two in the system
According to across the chain data interactive method of block chain that any one of interactive block chain application Claims 1 to 4 provides, or, the system
In across the chain data of block chain that provide of block chain application claim 5~7 any one of of any two across chain data interaction hand over
Mutual and verification method.
9. system according to claim 8, the either block chain in the system includes processor and memory；
The processor and memory communicate to connect；
Wherein, the processor, for calling and executing the program stored in the memory；
The memory, for storing program, the area that described program at least provides for realizing any one of such as Claims 1 to 4
Each step of the block chain across chain data interactive method, or, realizing across the chain number of block chain provided such as any one of claim 5~7
According to interactive and verification method each step.
10. a kind of storage medium is it is characterized in that, be stored thereon with computer program, the computer program is executed by processor
When, each step of the block chain across chain data interactive method provided such as any one of Claims 1 to 4 is realized, or, realizing as weighed
Benefit requires each step of any one of 5~7 across the chain data interactions of block chain provided and verification method.
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