CN111835795A - Block chain and non-block chain system state synchronization method - Google Patents
Block chain and non-block chain system state synchronization method Download PDFInfo
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- CN111835795A CN111835795A CN201910296638.7A CN201910296638A CN111835795A CN 111835795 A CN111835795 A CN 111835795A CN 201910296638 A CN201910296638 A CN 201910296638A CN 111835795 A CN111835795 A CN 111835795A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1059—Inter-group management mechanisms, e.g. splitting, merging or interconnection of groups
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Abstract
The invention discloses a method for synchronizing the state of a block chain system and a non-block chain system, which is used for solving the problem of cooperation between the block chain system and the conventional non-block chain system. The method is that the blockchain actively acquires the state of the non-blockchain system through the network interface so as to change the state of the blockchain system. The network interface specifically comprises the modes of HTTP, sock and the like; thus, if the non-blockchain system supports a network interface, cooperation with the blockchain system can be achieved without major modification. The block chain state changing mode comprises a condition transaction mode and an intelligent contract mode. In summary, the present invention realizes the synchronization of the blockchain system and the non-blockchain system by the state change of the non-blockchain system to cause the state change of the blockchain system.
Description
Technical Field
The invention relates to the technical field of internet, in particular to technologies of block chain, non-block chain system, state synchronization and the like.
Background
At present, the block chain has the characteristics of non-tamper property, high reliability, decentralization and the like, and is successfully applied to a plurality of fields. But related applications are all centered on the block chain, and the original applications are moved to the block chain.
The practical application is mature and large in scale, the work is complex or even impossible when the block chain is completely moved, and only the related part needs to be moved to the block chain.
Therefore, in order to solve the problem of the connection between the existing application and the blockchain, a method for synchronizing the state between the blockchain and the non-blockchain system is provided, that is, a method for actively acquiring the state of the non-blockchain system by using the blockchain as an initiating terminal so as to change the state of the blockchain.
The technology can be applied to the problem of convergence of a blockchain-based system and an existing system, for example, the blockchain is used as a third party payment platform of an electronic shopping system.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention actively acquires the state of the non-blockchain system based on the blockchain so as to realize the synchronization method, and can ensure that the blockchain carries out state change according to the state of the non-blockchain system. A block chain and non-block chain state synchronization method.
The technical scheme adopted by the invention for solving the technical problem comprises the following steps.
1) And acquiring the state.
The blockchain acquires the state of the non-blockchain system through a network (web) -based interface. The Web interface includes HTTP, REST based on HTTP, and socket type interface.
This approach is called active acquisition approach, since the blockchain thread acts as the initiator.
2) The block chain state changes.
After acquiring the corresponding non-blockchain system state, the blockchain will make a state change. Block chain state changes are further divided into two categories, transaction state changes and intelligent contract state changes.
(1) Transaction state change
This approach is based on conditional transactions of the blockchain, i.e. the validity of the transaction after entering the blockchain backbone is still dependent on other conditions.
The blockchain changes the conditional transaction to an active or inactive state by "state acquiring" the information needed for the conditional transaction from the non-blockchain system. And if the transaction state is an invalid state, returning the related assets to the asset initiator.
For example, the blockchain cooperates with an electronic shopping mall. The existing electronic shopping malls usually have third party payment, and after the user confirms receiving goods in the logistics system, the goods payment is given to the buyer. In this example, the logistics system, the electronic shopping mall, and the third party payment are non-blockchain systems. After the method is adopted, the third party payment adopts the block chain, and the logistics system and the electronic shopping mall are still non-block chain systems. The system will become an interaction of blockchain with non-blockchain systems such as logistics systems. The specific process is as follows:
the two transaction parties negotiate firstly, the buyer pays on the blockchain, the seller delivers goods, and the logistics system records logistics information. After the buyer receives the goods, the logistics platform records the goods receiving. The block chain system queries the confirmation information from the logistics system in an HTTP mode. When the blockchain system queries that there are harvest records, the buyer pays the blockchain money transfer to the seller. If the seller does not deliver the goods or the goods are lost in the logistics process, the logistics platform does not have a receiving record, and after the appointed time is exceeded, the block chain money is returned to the buyer.
(2) Intelligent contract state change
The approach is based on smart contracts. The intelligent contract obtains information from the non-blockchain system to determine the next state change operation. The state change operation includes: determining whether a transaction is valid, determining that an account balance has changed, and initiating a transaction to change a system state.
The decision on the validity of a certain transaction is similar to the case of 'transaction status change' in (1).
The account balance changes. And after the state of the non-blockchain system is changed, the blockchain changes the balance of the corresponding account according to the result. For example, increase the balance of a user and decrease the balance of a user.
A certain transaction is initiated. That is, the intelligent contract actively initiates a transaction based on the state of the non-blockchain system. Causing a change in the state of the blockchain system.
Compared with the prior art, the invention has the beneficial effects that:
the method for actively acquiring the state of the non-blockchain system based on the blockchain so as to change the state of the blockchain can ensure the state synchronization of the blockchain and the non-blockchain system, thereby promoting the full fusion of the existing application and the blockchain system; the fusion has small change to the existing system, and parts of the system which can be flexibly selected are called blockchain systems, and other parts are not blockchain systems.
Drawings
FIG. 1 is a block diagram illustrating a method for acquiring non-blockchain system status by blockchain
FIG. 2 is a flow diagram illustrating a blockchain transaction-based state change process
FIG. 3 is a flow diagram illustrating a blockchain intelligent contract-based state change process
Detailed Description
This embodiment uses fig. 1 to illustrate the blockchain acquisition non-blockchain system state:
the blockchain system obtains the state of the non-blockchain system through a network (web) mode. This approach is a blockchain process as the initiator, i.e., an active acquisition approach. After the blockchain system sends a request, the non-blockchain system returns the current state to the blockchain system in a web mode.
This embodiment uses fig. 2 to illustrate the blockchain transaction-based state change process:
in this case, the transaction issued on the blockchain is a conditional transaction. The blockchain acquires the state of the non-blockchain system, and further determines the final state of the conditional transaction to be valid or invalid. The specific process is as follows:
the blockchain determines whether the state of the current transaction needs to be changed based on the state of the non-blockchain system. If the non-blockchain system state does not meet the condition of the conditional transaction, the state of the non-blockchain system is continuously waited for changing and the state is retrieved from the non-blockchain system again. If the condition of the condition transaction is satisfied, the following two situations are carried out: (1) if the state of the non-blockchain system enables the conditional transaction to be effective, the blockchain system executes relevant operation of transaction effectiveness; (2) if the state of the non-blockchain system invalidates the conditional transaction, the blockchain system will perform the operations associated with the transaction invalidation.
This embodiment uses FIG. 3 to illustrate the state change process of blockchain based on intelligent contracts
In this case, the smart contracts on the blockchain capture the state of the non-blockchain system. And then the next state change operation is performed. As shown, the state change operation includes three possibilities: (1) determining whether a transaction is valid, (2) determining that an account balance has changed, (3) or changing the system state by initiating a transaction.
Claims (4)
1. The method for synchronizing the state between the block chain system and the non-block chain system is characterized in that the block chain acquires the state of the non-block chain system through a network interface to change the state of the block chain, so that the cooperation of the state of the block chain and the state of the non-block chain is realized.
2. The method of claim 1, wherein the blockchain is used as an initiator to actively obtain the state of the non-blockchain system in a network interface, including HTTP and socket interfaces.
3. The method of claim 1, wherein the state information of the non-blockchain system is utilized to change the state of the blockchain system.
4. A method for state synchronization between blockchain and non-blockchain systems according to claims 1, 2 and 3, wherein the state of the non-blockchain system affects and changes the state of the blockchain system, thereby realizing coordination between the blockchain system and the non-blockchain system.
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| CN201910296638.7A CN111835795A (en) | 2019-04-14 | 2019-04-14 | Block chain and non-block chain system state synchronization method |
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