CN110543526B - Optimized storage method and system based on block chain - Google Patents
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Abstract
The invention discloses an optimized storage method and system based on a block chain, which comprises a block chain network comprising a plurality of nodes and at least one set of storage system connected with the nodes. Storing the transaction detailed data originally stored in the block on a special storage system, wherein only the transaction certificate is stored in the block; the transaction detailed data on the nodes are stored in a special storage system, so that the problem that when a blockchain system runs, each blockchain link point actively or passively synchronizes blockchain data, and each node stores the same piece of block historical data, so that a data black hole is generated is solved.
Description
Technical Field
The present invention relates to the field of block chains, and in particular, to an optimized storage method and system based on a block chain.
Background
The development of the block chain brings a new revolution to the modern digital economy era, and different organizations, different people and different identities can trust each other in the block chain, so that the problem of fraud in value transaction is fundamentally solved. The system of blockchains can be divided into such layers: a data layer, a network layer, a consensus layer, a stimulus layer, a contract layer, and an application layer. The bottom layer of the block chain forms a data storage mechanism of the bottom layer of the block chain through data blocks, an encryption algorithm and the like. Due to the data consensus property and mechanism of the blockchain, it is difficult to store large resources and data files in the blockchain, and as the resource data increases, the storage cost increases.
At present, a mainstream blockchain system is based on node data synchronization, all transaction data can be stored in a blockchain, and each node can store the blockchain transaction data.
When the blockchain system is running, each blockchain link point actively or passively synchronizes blockchain data, and each node stores a same piece of block history data, which causes several problems:
1. the size of the block is limited and node block data synchronization is slow;
2. the transaction amount per block is limited;
3. the transaction data size is limited, and a bottleneck occurs in the transaction for processing big-bit data;
4. due to the operation of the block chain system, the occupied disk space is large, and the storage pressure of the disk is increased.
Disclosure of Invention
The invention aims to: the method and the system solve the problem that when a block chain system runs, each block chain link point actively or passively synchronizes block chain data, and each node stores the same block historical data, so that a data black hole is generated.
The technical scheme adopted by the invention is as follows:
a block chain-based optimized storage method comprises a block chain network comprising a plurality of nodes and at least one set of storage system connected with the nodes, wherein the storage system and the block chain network are mutually independent, when a transaction request is received by the nodes, transaction data is processed into transaction certificates and transaction detailed data, the transaction detailed data is stored in the storage system connected with the nodes by the nodes, and the transaction certificates corresponding to the transaction detailed data are stored on the block chain network by the nodes. Storing the transaction detailed data originally stored in the block on a special storage system, wherein only the transaction certificate is stored in the block; the transaction detailed data on the nodes are stored in a special storage system, so that the problem that when a blockchain system runs, each blockchain link point actively or passively synchronizes blockchain data, and each node stores the same piece of block historical data, so that a data black hole is generated is solved. In some existing schemes, some nodes on the blockchain are referred to as storage nodes to exclusively store data, so as to avoid data storage repetition to solve the problem of data black holes, and the scheme is different from the scheme in that: the storage node in the existing scheme is a part of the blockchain and belongs to one node on the blockchain, while the storage system in the scheme is an offline storage system which is not located on the blockchain and is separately connected with one or more nodes, so that the advantage that the size of the whole blockchain can be effectively controlled, because the content stored by the storage system is MB or GB grade, and the transaction certificate on the chain is B grade or KB grade, the existing scheme can also cause larger data volume of the blockchain when the content in the storage system is stored on the storage node on the chain.
The method comprises the steps that a node reads a transaction certificate of a block, stores the transaction certificate on the node, then searches a storage system connected with the node, judges whether transaction detailed data corresponding to the transaction certificate are stored in the storage system, if yes, verifies whether the transaction certificate on the block is matched with the transaction detailed data in the storage system and then completes synchronization, and if not, the node acquires the corresponding transaction detailed data and stores the transaction detailed data in the storage system and then verifies that the block completes synchronization. The verification of the block adopts the verification method of the node on the transaction detailed data stored in the storage system, if the transaction detailed data is not tampered, the node synchronizes the block, otherwise, the node reports an error.
Further, a set of storage systems is connected to at least one of the nodes. By adopting the scheme, the synchronization times of the transaction detailed data among the nodes are reduced, when the first node connected with a certain storage system synchronizes the transaction detailed data into the storage system during block synchronization, other nodes connected with the storage system can read the corresponding transaction detailed data through the transaction certificate, the synchronization times of the transaction detailed data among the nodes are reduced, and meanwhile, the storage space is saved.
Further, the transaction credential includes a transaction ID and an authentication password. The transaction ID is used for recording data such as summary information or serial numbers of the transaction, the data volume is small, and the verification password is used for verifying whether the transaction detailed data are tampered by the node.
Further, the verification password is obtained by performing irreversible encryption on transaction detailed data corresponding to the transaction certificate. The irreversible encryption algorithm is characterized in that a secret key is not needed in the encryption process, the system directly processes the input plaintext into a ciphertext through the encryption algorithm, the encrypted data cannot be decrypted, and the data can be really decrypted only by re-inputting the plaintext and re-processing the plaintext through the same irreversible encryption algorithm to obtain the same encrypted ciphertext which is re-identified by the system.
Further, the method for verifying the transaction detail data stored in the storage system by the node comprises the following steps: taking out the transaction detailed data from the storage system, carrying out irreversible encryption on the transaction detailed data to obtain a verification array, comparing the verification array with the verification password of the corresponding transaction on the block chain, if the verification array is consistent with the verification password, the transaction detailed data stored in the storage system is not tampered, otherwise, the transaction detailed data is tampered.
Further, the method comprises the steps that when a new node accesses the block chain network, the node establishes connection with at least one set of storage system, and then the node synchronizes all blocks in the block chain network.
Further, the method for the node to obtain the corresponding transaction detailed data is to transfer the corresponding transaction detailed data from the database of the block outlet node of the block where the transaction certificate is located.
The method for transferring and storing the corresponding transaction detailed data from the database of the block outlet node of the block where the transaction certificate is located comprises the following two methods:
the method comprises the following steps: the node is communicated with the out-block node, the out-block node reads the transaction detailed data in the storage system connected with the out-block node, the transaction detailed data is sent to the node needing to acquire the transaction detailed data, and the node needing to acquire the transaction detailed data stores the transaction detailed data in the storage system connected with the out-block node;
the method 2 comprises the following steps: the node is communicated with the out-block node, the out-block node reads a storage path of the transaction detailed data in the storage system connected with the out-block node, the storage path of the transaction detailed data is sent to the node needing to acquire the transaction detailed data, and the node needing to acquire the transaction detailed data synchronizes data to the storage system connected with the node according to the storage path of the transaction detailed data.
An optimized storage system based on a block chain, comprising the above node and storage system, the node comprising:
a memory for storing executable instructions;
and the processor is used for executing the executable instructions stored in the memory to realize the optimized storage method based on the block chain.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention relates to an optimized storage method and system based on a block chain, which solve the problem that when a block chain system runs, each block chain link point actively or passively synchronizes block chain data, and each node stores the same block historical data, so that a data black hole is generated;
2. according to the optimized storage method and system based on the block chain, the number of times of synchronizing the block data of the nodes is far more than that of synchronizing the transaction data, so that the block synchronization is faster;
3. the optimized storage method and system based on the block chain can support the transaction of large data volume, cannot cause obvious increase of the size of the block, only can increase the size of the transaction data, and obviously increase the transaction data which can be packaged by each block. And does not cause a significant increase in block size.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:
fig. 1 is a schematic diagram of the overall system architecture of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to fig. 1, the described embodiments should not be construed as limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
Before further detailed description of the embodiments of the present invention, terms and expressions mentioned in the embodiments of the present invention are explained, and the terms and expressions mentioned in the embodiments of the present invention are applied to the following explanations.
And (3) node: a node herein refers to a computing device having computing and storage capabilities.
Irreversible encryption: the irreversible encryption algorithm is characterized in that a secret key is not needed in the encryption process, the system directly processes the input plaintext through the encryption algorithm to form a ciphertext, the encrypted data cannot be decrypted, but the plaintext can be input again, and the same irreversible encryption algorithm is processed again to obtain the same encrypted ciphertext.
Example 1
A block chain-based optimized storage method comprises a block chain network comprising a plurality of nodes and at least one set of storage system connected with the nodes, wherein the storage system and the block chain network are mutually independent, when a transaction request is received by the nodes, transaction data is processed into transaction certificates and transaction detailed data, the transaction detailed data is stored in the storage system connected with the nodes by the nodes, and the transaction certificates corresponding to the transaction detailed data are stored on the block chain network by the nodes. Storing the transaction detailed data originally stored in the block on a special storage system, wherein only the transaction certificate is stored in the block; the transaction detailed data on the nodes are stored in a special storage system, so that the problem that when a blockchain system runs, each blockchain link point actively or passively synchronizes blockchain data, and each node stores the same piece of block historical data, so that a data black hole is generated is solved.
Example 2
In this embodiment, on the basis of embodiment 1, a set of storage systems is connected to at least one node. By adopting the scheme, the synchronization times of the transaction detailed data among the nodes are reduced, when the first node connected with a certain storage system synchronizes the transaction detailed data into the storage system during block synchronization, other nodes connected with the storage system can read the corresponding transaction detailed data through the transaction certificate, the synchronization times of the transaction detailed data among the nodes are reduced, and meanwhile, the storage space is saved.
Example 3
The embodiment is further based on embodiment 1, and the transaction certificate comprises a transaction ID and an authentication password. The transaction ID is used for recording data such as summary information or serial numbers of the transaction, the data volume is small, and the verification password is used for verifying whether the transaction detailed data are tampered by the node.
Further, the verification password is obtained by performing irreversible encryption on transaction detailed data corresponding to the transaction certificate. The irreversible encryption algorithm is characterized in that a secret key is not needed in the encryption process, the system directly processes the input plaintext into a ciphertext through the encryption algorithm, the encrypted data cannot be decrypted, and the data can be really decrypted only by re-inputting the plaintext and re-processing the plaintext through the same irreversible encryption algorithm to obtain the same encrypted ciphertext which is re-identified by the system.
Further, the method for verifying the transaction detail data stored in the storage system by the node comprises the following steps: taking out the transaction detailed data from the storage system, carrying out irreversible encryption on the transaction detailed data to obtain a verification array, comparing the verification array with the verification password of the corresponding transaction on the block chain, if the verification array is consistent with the verification password, the transaction detailed data stored in the storage system is not tampered, otherwise, the transaction detailed data is tampered.
Example 4
This embodiment is further based on embodiment 1, and further includes that when a new node accesses the blockchain network, the node establishes a connection with at least one set of storage system, and then the node synchronizes all blocks in the blockchain network.
The method comprises the steps that a node reads a transaction certificate of a block, stores the transaction certificate on the node, then searches a storage system connected with the node, judges whether transaction detailed data corresponding to the transaction certificate are stored in the storage system, if yes, the synchronization is completed after the block is verified, and if not, the node acquires the corresponding transaction detailed data and stores the transaction detailed data in the storage system, and then the synchronization is completed after the block is verified. The verification of the block adopts the verification method of the node on the transaction detailed data stored in the storage system, if the transaction detailed data is not tampered, the node synchronizes the block, otherwise, the node reports an error.
Example 5
In this embodiment, based on embodiment 1, the method for the node to obtain the corresponding transaction detail data is to transfer the corresponding transaction detail data from the database of the block exit node of the block where the transaction certificate is located.
The method for transferring and storing the corresponding transaction detailed data from the database of the block outlet node of the block where the transaction certificate is located comprises the following two methods:
the method comprises the following steps: the node is communicated with the out-block node, the out-block node reads the transaction detailed data in the storage system connected with the out-block node, the transaction detailed data is sent to the node needing to acquire the transaction detailed data, and the node needing to acquire the transaction detailed data stores the transaction detailed data in the storage system connected with the out-block node;
the method 2 comprises the following steps: the node is communicated with the out-block node, the out-block node reads a storage path of the transaction detailed data in the storage system connected with the out-block node, the storage path of the transaction detailed data is sent to the node needing to acquire the transaction detailed data, and the node needing to acquire the transaction detailed data synchronizes data to the storage system connected with the node according to the storage path of the transaction detailed data.
Example 6
An optimized storage system based on a block chain, comprising the above node and storage system, the node comprising:
a memory for storing executable instructions;
and the processor is used for executing the executable instructions stored in the memory to realize the optimized storage method based on the block chain.
Example 7
The embodiment is a specific use scenario and includes company a and company B, where company a includes nodes a1, a2, and A3, company B includes nodes B1 and B2, and nodes a1, a2, A3, B1, and B2 together form a block chain network; the A1, A2 and A3 nodes are connected with a storage system X, the B1 node is connected with a storage system Y, and the B2 node is connected with a storage system Z;
when the node a1 receives a transaction, the transaction information of the transaction is processed, and the transaction information is processed into a transaction certificate and transaction detail data, wherein the transaction certificate includes a transaction ID and a verification password, and the transaction ID records a serial number of the transaction, such as: 000000001, and the authentication password is obtained by encrypting transaction detail data through SHA256, wherein the transaction detail data comprises objects participating in the transaction, time of the transaction, specific events of the transaction and the like.
A1 node packs a transaction ID and a verification password to construct a block, transaction detailed data is stored in a storage system X, after an A1 node goes out of the block, the A2 and A3 nodes and B1 and B2 nodes start to synchronize the block, after an A2 node and an A3 node start to synchronize the block, the storage system X is inquired, transaction detailed data corresponding to a 000000001 number transaction is inquired, the storage system X is inquired that the transaction detailed data corresponding to the 000000001 number transaction is stored, the A2 and A3 nodes read the transaction detailed data corresponding to the 000000001 number transaction stored in the storage system X, SHA256 encryption is carried out on the transaction detailed data to obtain a verification array, the verification array is compared with the verification password recorded on the block, if the verification array is consistent with the verification password, the transaction detailed data stored in the storage system is not tampered, otherwise, if the transaction detailed data is not tampered, the node synchronizes the block, otherwise, the node reports the error.
After the nodes B1 and B2 start the synchronization block, B1 queries the node B of the storage system Y, B2 queries the node B of the storage system Z, queries the transaction detailed data corresponding to the transaction No. 000000001, queries that the transaction detailed data corresponding to the transaction No. 0000000000001 are not stored in the storage system Y, Z, the nodes B1 and B2 communicate with the node A1, the node A1 reads the transaction detailed data in the storage system X, sends the transaction detailed data to the node B1, and the node B1 stores the transaction detailed data in the storage system Y connected with the node B;
the A1 node reads the storage path of the transaction detail data in the storage system X and sends the storage path of the transaction detail data to the B2 node, and the B2 synchronizes the data to the storage system Z connected with the B2 node according to the storage path of the transaction detail data;
the B1 and B2 nodes respectively read transaction detail data corresponding to a 000000001 number transaction stored in the storage system Y, Z, perform SHA256 encryption on the transaction detail data to obtain a verification array, compare the verification array with a verification password recorded on a block, if the verification array is consistent with the verification password, the transaction detail data stored in the storage system is not tampered, otherwise, the transaction detail data is tampered, if the transaction detail data is not tampered, the node synchronizes the block, otherwise, the node reports an error.
Example 8
In this embodiment, on the basis of embodiment 7, the storage system X is a distributed storage system including a database 1, a database 2, and a database 3, when the nodes a2 and A3 read transaction detail data corresponding to a transaction No. 000000001 stored in the storage system X, first, the transaction detail data corresponding to the transaction No. 000000001 in the database 1 is read for verification, if the verification fails, the nodes a2 and A3 sequentially read transaction detail data in the database 2 and the database 3 for verification, and if the transaction detail data in the database 2 and the database 3 passes the verification, the data in the database 1 is tampered.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A block chain-based optimized storage method comprises a block chain network comprising a plurality of nodes, and is characterized in that: the system comprises a node and at least one storage system connected with the node, wherein the storage system is connected with the node and is independent from the blockchain network;
the method for node synchronization block comprises the following steps: the node reads the transaction voucher of the block, stores the transaction voucher on the node, then the node searches a storage system connected with the node, judges whether transaction detailed data corresponding to the transaction voucher are stored in the storage system, if yes, verifies whether the transaction voucher on the block is matched with the transaction detailed data in the storage system and then completes synchronization, and if not, the node acquires the corresponding transaction detailed data and stores the transaction detailed data in the storage system and then verifies that the block completes synchronization.
2. The optimized storage method based on block chain as claimed in claim 1, wherein: the transaction credentials include a transaction ID and an authentication password.
3. The optimized storage method based on block chain as claimed in claim 2, wherein: the verification password is obtained by carrying out irreversible encryption on transaction detailed data corresponding to the transaction certificate.
4. The optimized storage method based on block chains according to claim 3, wherein: the method also comprises a verification method of the transaction detail data stored in the storage system by the nodes: taking out the transaction detailed data from the storage system, carrying out irreversible encryption on the transaction detailed data to obtain a verification array, comparing the verification array with the verification password of the corresponding transaction on the block chain, if the verification array is consistent with the verification password, the transaction detailed data stored in the storage system is not tampered, otherwise, the transaction detailed data is tampered.
5. The optimized storage method based on block chain as claimed in claim 1, wherein: the method also includes that when a new node accesses the blockchain network, the node establishes connection with at least one set of storage system, and then the node synchronizes all blocks in the blockchain network.
6. The optimized storage method based on block chain as claimed in claim 1, wherein: the method for the node to acquire the corresponding transaction detailed data is to transfer and store the corresponding transaction detailed data from the database of the block outlet node of the block where the transaction certificate is located.
7. A blockchain-based optimized storage system comprising the node of claim 1 and a storage system, the node comprising:
a memory for storing executable instructions;
a processor for executing the executable instructions stored in the memory to implement a blockchain-based optimized storage method as claimed in claim 1.
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| CN114066637B (en) * | 2021-11-15 | 2024-07-09 | 深圳前海鸿泰源兴科技发展有限公司 | Financial analysis system and operation method based on Internet of things |
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