CN111352770A - Block chain backup system, backup method, block chain verification method and block chain verification system - Google Patents
Block chain backup system, backup method, block chain verification method and block chain verification system Download PDFInfo
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Abstract
The invention discloses a block chain backup system, a backup method, a block chain verification method and a verification system, wherein the block chain backup system comprises a plurality of block chains, the block chains store and store data through blocks, all data are contained between each data node, and the block storage data has a complete history record and can be rapidly restored and expanded; the block chain backup method comprises the following steps: s1, organizing data by the block chain in a block unit, and storing all transaction records in the unique block chain of the whole network in a transaction list form; s2, the block in S1 is a data structure of transaction, each block is composed of a block head and a block main body, and the block main body is only responsible for recording all transaction information in the previous period. The invention utilizes the cooperation of a plurality of block chains, effectively reduces the possibility of information leakage, and effectively avoids the condition that the control exceeds 51 percent of nodes, thereby greatly improving the safety of the block chain backup system.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a block chain backup system, a backup method, a block chain verification method and a block chain verification system.
Background
Blockchains are a term of art in information technology. In essence, the system is a shared database, and the data or information stored in the shared database has the characteristics of 'unforgeability', 'whole-course trace', 'traceability', 'public transparency', 'collective maintenance', and the like. Based on the characteristics, the blockchain technology lays a solid trust foundation, creates a reliable cooperation mechanism, has wide application prospect, and is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like. The blockchain is an important concept of bitcoin, is essentially a decentralized database, and is used as a bottom-layer technology of bitcoin, and is a string of data blocks generated by correlation by using a cryptographic method.
Disclosure of Invention
The present invention is directed to a system and a method for block chain backup and a method and a system for block chain verification, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the block chain backup system comprises a plurality of block chains, the block chains store and store data through blocks, all data are contained between each data node, and the block storage data have complete history records and can be rapidly restored and expanded.
The block chain backup method based on the block chain backup system comprises the following steps:
s1, organizing data by the block chain in a block unit, and storing all transaction records in the unique block chain of the whole network in a transaction list form;
s2, the block in S1 is a data structure of transaction, each block is composed of a block header and a block body, the block body is only responsible for recording all transaction information in a previous period, most functions of a block chain are realized by the block header, the block header utilizes the hash value of the block chain, the first of each block is connected through the hash value, and finally, each block chain is connected.
A blockchain verification system comprising;
a1, a searching module, for searching the same information in each block chain;
a2, comparing and verifying module, which is used to check the information inquired from the searching module and to verify the comparison of the information.
The block chain verification method comprises the steps of utilizing a zone head to conduct operation determination on information inquired by A1, enabling the block head to contain a random number, enabling a specific numerical value to appear in a random hash value of a block, enabling a node to find the random number through repeated attempts, enabling the determined numerical value to be accurate, utilizing A2 to conduct comparison verification on numerical values obtained after the inquired information is checked, and if the numerical values are consistent, the numerical values are credible, and if the numerical values are inconsistent, the numerical values are not credible.
Compared with the prior art, the invention has the beneficial effects that: the invention utilizes the cooperation of a plurality of block chains, effectively reduces the possibility of information leakage, and effectively avoids the condition that the control exceeds 51 percent of nodes, thereby greatly improving the safety of the block chain backup system.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the block chain backup system comprises a plurality of block chains, wherein the block chains store and store data through blocks, all data are contained between each data node, the block stored data has complete history records and can be rapidly recovered and expanded, the regional chains are divided into public chains, private chains and alliance chains, the public chains are open at any node, everyone can participate in the block chain calculation, and anyone can download and obtain the complete block chain data, the private chains are some block chains and do not want anyone to participate in the system and do not open outside, the block chain backup system is suitable for internal data management and audit or open test of a specific organization, the alliance chains are all equal in authority of participating in each node, trusted exchange of data can be realized without complete mutual communication, each node of the alliance chains is generally organized by corresponding entity organizations, the network can be accessed and quitted after authorization, in the process of using the whole block chain backup system, a digital signature is needed, the digital signature designs a hash function, a public key of a sender and a private key of the sender, and the block chain has a complete distributed storage characteristic, so that the more huge network data storage is realized while a data structure in a hash algorithm form is used for storing basic data.
The block chain backup method based on the block chain backup system comprises the following steps:
and S1, organizing the data by the block chain in a block unit, and storing all transaction records in the unique block chain in the whole network in a transaction list mode.
S2, the block in S1 is a data structure of transaction, each block is composed of a block head and a block main body, the block main body is only responsible for recording all transaction information in the previous period, most functions of a block chain are realized by the block head, the block head utilizes the hash value of the block chain, the first of each block is connected through the hash value, and finally each block chain is connected, 1, the transaction information in the local memory is recorded into the block main body; 2. generating a Merkle tree of all transaction information in the block in a block main body, and storing the value of a Merkle tree root in a block header; 3. generating a hash value by the data of the block head of the block just generated through the SHA256 algorithm and filling the hash value into the parent hash value of the current block; 4. saving the current time in a timestamp field; 5. the difficulty value field is adjusted according to the average generation time of the blocks in a previous period of time to deal with the overall calculation total quantity which changes continuously in the whole network, if the calculation total quantity is increased, the system can increase the difficulty value of the mathematical problem, and the time for expecting to finish the next block is still in a certain time.
A blockchain verification system comprising;
a1, a searching module, for searching the same information in each block chain.
A2, comparing and verifying module, which is used to check the information inquired from the searching module and to verify the comparison of the information.
A block chain verification method comprises the steps of utilizing a zone head to carry out operation determination on information inquired by A1, enabling the block head to contain a random number, enabling a random hash value of a block to have a specific numerical value, enabling a node to find the random number through repeated attempts, enabling the determined numerical value to be accurate, utilizing A2 to compare and verify the numerical value after the inquired information is checked, if the numerical value is consistent, the numerical value is credible, if the numerical value is inconsistent, the numerical value is not credible, more than one node in the whole network can calculate the random number in the same time period, namely, a plurality of nodes broadcast respective packaged temporary blocks in the network, if a certain node receives a plurality of subsequent temporary blocks aiming at the same previous block, the node can establish branches on a local block chain, the plurality of temporary blocks correspond to the plurality of branches, and the tie-up of the nodes is waited for the next workload certification, and one of the chains proves to be the longer one, the node working on the other branch chain is converted into a camp and starts working on the longer chain, and the other branches are completely abandoned by the network.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A block chain backup system, comprising: the block chain backup system comprises a plurality of block chains, the block chains store and store data through blocks, all data are contained between each data node, and the block storage data have complete history records and can be rapidly restored and expanded.
2. The block chain backup method based on the block chain backup system is characterized by comprising the following steps:
s1, organizing data by the block chain in a block unit, and storing all transaction records in the unique block chain of the whole network in a transaction list form;
s2, the block in S1 is a data structure of transaction, each block is composed of a block header and a block body, the block body is only responsible for recording all transaction information in a previous period, most functions of a block chain are realized by the block header, the block header utilizes the hash value of the block chain, the first of each block is connected through the hash value, and finally, each block chain is connected.
3. A blockchain verification system, comprising;
a1, a searching module, for searching the same information in each block chain;
a2, comparing and verifying module, which is used to check the information inquired from the searching module and to verify the comparison of the information.
4. The blockchain verification method of claim 3, wherein: the information inquired by the A1 is operated and determined by utilizing the zone header, the block header contains a random number, so that a specific value appears in the random hash value of the block, the node finds the random number through repeated attempts, the determined value is more accurate, the values after the inquired information is operated and checked by utilizing the A2, if the values are consistent, the information is credible, and if the values are inconsistent, the information is not credible.
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Cited By (4)
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| CN112349416A (en) * | 2020-11-06 | 2021-02-09 | 罗鑫龙 | Big health management platform based on block chain and big data |
| CN113157494A (en) * | 2021-04-19 | 2021-07-23 | 支付宝(杭州)信息技术有限公司 | Method and device for data backup in block chain system |
| CN114268633A (en) * | 2021-11-01 | 2022-04-01 | 北京交通大学 | Task-driven short-time block chain system and method |
| US11368450B2 (en) | 2019-11-25 | 2022-06-21 | Guangzhou University | Method for bidirectional authorization of blockchain-based resource public key infrastructure |
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| CN114268633B (en) * | 2021-11-01 | 2022-11-18 | 北京交通大学 | Task-driven short-time block chain system and method |
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