KR20200059830A - 2 Layer Block Chain System - Google Patents

Abstract

According to one aspect of the present invention, the double-layered blockchain system, which can improve a blockchain transaction processing speed in cryptocurrency trades or the like conducted by connecting a sub blockchain to a conventional main blockchain, comprises: a first main blockchain which generates and approves a first main block including a trade transaction of a first cryptocurrency, and connects the first main block to a previous main block; and a first sub blockchain which generates and approves a first sub block, which stores a trade transaction of the first cryptocurrency, and connects the first sub block to a previous sub block. The first sub blockchain includes a first chain connector which, when a first trade transaction occurs on the first cryptocurrency between customers participating in the first sub blockchain, generates and approves the first sub block including the first trade transaction, determines the first trade transaction, and synchronizes the determined first trade transaction with the first main blockchain.

Description

Double Layer Blockchain System {2 Layer Block Chain System}

The present invention relates to a blockchain system, and more particularly, to a blockchain system for cryptocurrency transactions.

Traditional e-financial transactions are operated in such a way that individuals trade with trusted institutions such as banks and governments. This is a centralized structure of the financial system, where the central server is responsible for the verification and management of financial transactions.

The recently proposed financial system uses a blockchain-based cryptocurrency, and is implemented in a decentralized structure in which all network participants share and store transaction details.

The aforementioned blockchain technology was first presented in Satoshi Nakamoto's "Bitcoin: A Peer-to-Peer Electronic Cash System" paper published in 2008 by Satoshi Nakamoto, Transactions for cryptocurrency transactions, execution of smart contracts, etc., block creation of the transaction, block approval of participants on the network, and block connection connecting the approved block to the pre-generated block to complete the transaction Process.

This blockchain technology is used in various fields in recent years because it is impossible to change data and ensure transparency because each node stores the same data by including the hash value of the previous block when creating the block, and each node stores the same data. .

However, in the case of a public blockchain capable of trading cryptocurrency in the above-described blockchain technology, transaction processing time is long (for example, bitcoin per transaction takes more than 10 minutes, and Ethereum takes 13 to 15 seconds), Due to the effect of the branch block, since at least 6 to 7 blocks are connected, the transaction is confirmed, so it takes a longer time to process the final transaction.

In particular, cryptocurrency exchanges that relay cryptocurrency transactions are processing transactions using the cryptocurrency possessed by the exchanges in order to solve the problem of the processing speed of the blockchain. This internal transaction method guarantees the speed of the transaction, but it is easily exposed to hacking, and it is difficult to guarantee transparency, resulting in excessive exchange fees.

Republic of Korea Patent Publication No. 10-2016-0114749 (A cryptocurrency transaction method using a blockchain structure, 2016.10.06 published)

The present invention is characterized by providing a dual-layer blockchain system that improves the speed of blockchain transaction processing in cryptocurrency transactions performed by connecting a sub-blockchain to an existing main blockchain.

Another aspect of the present invention is to provide a dual-layer blockchain system that processes cryptocurrency transactions in a separate blockchain to ensure transaction transparency and enhance security to reduce hacking risk.

In addition, another technical feature of the present invention is to provide a double-layer blockchain system capable of quickly processing exchange transactions between different types of cryptocurrencies.

In addition, another technical feature of the present invention is to provide a dual-layer blockchain system capable of converting a block format to conform to a format defined for each type when processing transactions between different types of cryptocurrency.

The dual-layer blockchain system according to an aspect of the present invention for achieving the above-mentioned object, generates and approves a first main block including a transaction transaction of the first cryptocurrency, and connects the first main block with the first main block Blockchain; And a first sub-blockchain that creates and approves a first sub-block in which the transaction transaction of the first cryptocurrency is stored, and connects with a previous sub-block, wherein the first sub-blockchain is the first sub-blockchain. When the first transaction transaction for the first cryptocurrency between the customers participating in the transaction is generated and approved by the first sub-block including the first transaction transaction, the first transaction transaction is confirmed, and the confirmed transaction And a first chain connector for synchronizing one transaction transaction to the first main blockchain.

According to the present invention, by applying the blockchain technology in the cryptocurrency exchange in the cryptocurrency exchange, there is an effect that the hacking risk in the cryptocurrency exchange can be reduced and the possibility of theft of the cryptocurrency can be reduced.

In addition, the present invention is capable of processing transactions between different types of cryptocurrencies in addition to transactions between the same types of cryptocurrencies, thereby increasing user convenience and maximizing system coverage.

In addition, the present invention has an effect of improving the stability of the system by converting block information to conform to a format defined for each type when processing transactions between different types of cryptocurrency.

1 is a view showing the configuration of a dual-layer blockchain system according to a first embodiment of the present invention.
FIG. 2 is a block diagram showing the configuration of the chain connector shown in FIG. 1.
3 is a view showing the configuration of a dual-layer blockchain system according to a second embodiment of the present invention.
4 is a view showing the configuration of a dual-layer blockchain system according to a third embodiment of the present invention.
5 is a view showing the configuration of a dual-layer blockchain system according to a fourth embodiment of the present invention.
6 is a conceptual diagram for explaining a block conversion method by the block conversion unit.
7A and 7B are diagrams showing examples of configurations of sub-blocks having different formats.

The meaning of the terms described in this specification should be understood as follows.

It should be understood that a singular expression includes a plurality of expressions unless the context clearly defines otherwise, and the terms "first", "second", etc. are intended to distinguish one component from another component, The scope of rights should not be limited by these terms.

It should be understood that terms such as “include” or “have” do not preclude the existence or addition possibility of one or more other features or numbers, steps, actions, components, parts or combinations thereof.

It should be understood that the term “at least one” includes all possible combinations from one or more related items. For example, the meaning of “at least one of the first item, the second item, and the third item” means 2 of the first item, the second item, and the third item, as well as each of the first item, the second item, and the third item. Any combination of items that can be presented from more than one dog.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of a dual-layer blockchain system according to an embodiment of the present invention. As shown in FIG. 1, the dual-layer blockchain system 100 according to an embodiment of the present invention includes a main blockchain 110 and a sub-blockchain 120 connected to the main blockchain 110. .

In FIG. 1, the main blockchain 110 processes transactions occurring for the issuance and transfer of cryptocurrency, and generates the main block 114 to store transaction details. The main blockchain 110 may process and store transactions occurring for the execution of a smart contract.

After obtaining the block approval, the main block 114 including the transaction details is shared with the nodes 112 participating in the main blockchain 110, and is connected to the previously generated main block 116. For example, the approval for the main block 114 is a proof-of-work (POW) method to find a nonce value of the main block 114 or a proof-of-stake (POS) method. Can be

The sub-blockchain 120 processes transactions generated for the transfer of cryptocurrency, and generates a sub-block 126 to store transaction details for the transfer of cryptocurrency. The sub-blockchain 120 may process and store transactions that occur for the execution of smart contracts.

The sub-blockchain 120 includes a chain connector 124 that creates a sub-block 126. The chain connector 124 generates a sub-block 126 including the corresponding transaction when a transaction occurs in the sub-blockchain 120. The chain connector 124 proceeds with block approval for the generated sub-block 126, and confirms the transaction by connecting the sub-block 126 to the previous sub-block 128. The chain connector 124 transfers the determined transaction result to the main blockchain 120 to synchronize the transactions of the sub-blockchain 120 with the main blockchain 110.

Hereinafter, a chain connector according to the present invention will be described in detail with reference to FIG. 2. 2 is a block diagram showing the configuration of a chain connector according to an embodiment of the present invention. 2, the chain connector 124 according to an embodiment of the present invention includes a block management unit 210 and a communication unit 220, the block management unit 210 is a block generation unit 212, block It includes an approval unit 214, and a block connection unit 216.

The block generator 212 processes transaction transactions generated for the transfer of cryptocurrency, and generates a sub-block 126 to store transaction transaction details. The transaction may occur as a smart contract between the seller and the buyer of the cryptocurrency. To this end, the chain connector 124 may further include a contract management unit 217 for managing smart contracts as shown in FIG. 2. In addition, the transaction transaction may be generated by a customer participating in the sub-blockchain 120.

The block approval unit 214 verifies and approves the validity of the sub-block 126 generated by the block generation unit 212. For block approval, when the sub-node 122 participating in the sub-blockchain 120 exceeds a certain level, a POA method for fast execution may be used, and sub-participating in the sub-blockchain 120 under the premise of TPS guarantee Various approval methods such as POW, POS, and DPOS through the nodes 122 may be applied.

When the block approval is completed by the block approval unit 214, the block connection unit 216 shares the approved block 126 to the sub-nodes 122 participating in the sub-blockchain 120, and the previous sub-block 128 Connect to and confirm the transaction transaction. At this time, the sharing of the sub-block 126 may include all sub-nodes 122 participating in the sub-blockchain 120, or may be shared only to some sub-nodes to which the block sharing authority is granted.

In addition, the block connection unit 216 synchronizes the confirmed transaction transaction with the main block 114 of the main blockchain 110. The block connection unit 216 may proceed to synchronize the transaction results at regular intervals, and may synchronize the transaction results on the condition that a certain transaction is secured.

The communication unit 220 broadcasts the transaction transaction and the sub-block 126 to the sub-nodes 126 participating in the sub-blockchain 120.

The first Example

When a transaction for a first cryptocurrency occurs between customers of the first sub-blockchain, a first embodiment will be described in which the first cryptocurrency transaction is processed in the first sub-blockchain and synchronized to the first main blockchain.

Hereinafter, referring to FIG. 1, the main blockchain includes the first main blockchain 110 for the first cryptocurrency transaction, and the sub-blockchain includes the first sub-blockchain 120 for the first cryptocurrency transaction. In the case of including, the first embodiment of the present invention will be described in detail. In the first embodiment, the chain connector is defined as the first chain connector 124, the sub-block generated in the first sub-blockchain 120 is defined as the first sub-block, and the first main blockchain 110 The main block generated in will be defined as the first main block.

For the first cryptocurrency transaction in the first sub-blockchain 120, when the first transaction transaction is generated through the electronic wallet capable of transferring the first cryptocurrency, the first chain connector 124 is the first sub-block Generate 126 to obtain block approval.

In one embodiment, the first transaction transaction may occur as a smart contract between the seller and the buyer of the first cryptocurrency. The seller and the buyer may be customers participating in the first sub-blockchain 120. When the node 122 participating in the first sub-blockchain 120 exceeds a certain level, the approval of the first sub-block 126 may use a POA method for fast execution and assumes the first TPS guarantee. Various approval methods such as POW, POS, and DPOS through nodes participating in the sub-blockchain 120 may be applied.

When the approval of the first sub-block 126 is completed, the first chain connector 124 shares the approved first sub-block 126 to the nodes 122 participating in the first sub-blockchain 120. Then, the first transaction transaction is confirmed by connecting to the previous sub-block 128. The first sub-block 126 may be shared among all nodes 122 participating in the first sub-blockchain 120, or may be shared only with some nodes to which block sharing authority is granted.

The first chain connector 124 synchronizes the determined first transaction transaction with the main block 114 of the first main blockchain 110. The first chain connector 124 may proceed to synchronize the results of the first transaction transaction at regular intervals, and may synchronize the results of the first transaction transaction on the condition that a certain transaction is secured.

In the case of the first main blockchain 110, it takes a long time to process and confirm a transaction transaction (for example, Bitcoin takes 10 minutes per transaction, Ethereum takes 13 to 15 seconds), and at least 6 to 7 agents 1 It is possible to confirm the transaction transaction only when the main block 114 is connected, but according to the present invention, since the processing and confirmation of the first transaction transaction for the first cryptocurrency is performed in the first sub-blockchain 120, the first Transactions It is possible to shorten the time required for processing and confirmation of transactions, thereby enabling fast transactions.

In addition, in the case of cryptocurrency transactions, since all transactions are performed through a blockchain, it is not only safe, but also large-scale hacking is impossible, so it is possible to solve the problems of existing cryptocurrency exchanges.

2nd Example

When a transaction for the first cryptocurrency and a transaction for the second cryptocurrency different from the first cryptocurrency occur between customers of the first sub-blockchain, each of the first cryptocurrency transaction and the second cryptocurrency transaction is the first sub A second embodiment in which the first cryptocurrency transaction is synchronized to the first main blockchain and the second cryptocurrency transaction is synchronized to the second main blockchain will be described.

Hereinafter, referring to FIG. 3, the main blockchain includes a first main blockchain 110 for a first cryptocurrency transaction and a second main blockchain 140 for a second cryptocurrency transaction. The second embodiment of the present invention will be described in detail by including, for example, a case in which the first sub-blockchain 120 capable of performing both the first cryptocurrency transaction and the second cryptocurrency transaction is included.

In the second embodiment of the present invention, the first sub-blockchain 120 is connected to the first main blockchain 110 and the second main blockchain 140, and the first cryptocurrency transaction and the second cryptocurrency transaction are It is possible blockchain. The main block generated in the second main blockchain 130 is defined as the second main block 146 to distinguish it from the first main block 116 generated in the first main blockchain 110.

The first chain connector 124 generates the first sub-block 126 to obtain block approval when the first transaction transaction for the first cryptocurrency is generated through the electronic wallet in the first sub-blockchain 120 and , When the second transaction transaction for the transfer of the second cryptocurrency occurs, the second sub-block 610 is generated to obtain block approval.

In one embodiment, the first transaction transaction may be generated as a smart contract between the seller and the buyer of the first cryptocurrency, and the second transaction transaction may be generated as a smart contract between the seller and the buyer of the second cryptocurrency. Also, the first and second transaction transactions may be generated by customers participating in the first sub-blockchain 120.

For the approval of the first sub-block 126 and the second sub-block 610, when the node 122 participating in the first sub-blockchain 120 exceeds a certain level, a POA method for quick execution may be used. , On the premise of guaranteeing TPS, various approval methods such as POW, POS, and DPOS through nodes participating in the first sub-blockchain 120 may be applied.

When the approval of the first sub-block 126 is completed, the first chain connector 124 shares the approved first sub-block 126 to the nodes 122 participating in the first sub-blockchain 120. , The first transaction transaction is confirmed by connecting with the first sub-block 128. In addition, when the approval of the second sub-block 610 is completed, the first chain connector 124 provides the approved second sub-block 610 to the nodes 122 participating in the first sub-blockchain 120. Share and confirm the second transaction transaction by connecting with the previous second sub-block 612. In this case, the first sub-block 126 and the second sub-block 610 may be shared by all nodes 122 participating in the first sub-blockchain 120, and a part in which block sharing authority is granted It can only be shared with nodes. The first sub-block 126 and the second sub-block 610 may be blocks of the same format and may be connected to the previous sub-block.

The first chain connector 124 synchronizes the determined first transaction transaction with the first main block 114 of the first main blockchain 110. In addition, the first chain connector 124 synchronizes the determined second transaction transaction with the second main block 146 of the second main blockchain 140. At this time, the first chain connector 124 may proceed to synchronize the results of the first and second transaction transactions at regular intervals, and may synchronize the results of the first and second transaction transactions on the condition that a certain transaction is secured.

As such, according to the second embodiment, the first sub-blockchain 120 can process and confirm different types of cryptocurrencies, that is, not only the first cryptocurrency, but also the second cryptocurrency transaction. Not only can it be processed quickly, but because various types of cryptocurrency transactions are performed through blockchain, large-scale hacking itself is impossible, which can solve the problems of existing cryptocurrency exchanges.

Third Example

When a transaction for the first cryptocurrency occurs between a customer of the first sub-blockchain and a customer of the first sub-blockchain and another second sub-blockchain, the first cryptocurrency transaction is the first sub-blockchain and the second sub-blockchain. A third embodiment in which the first cryptocurrency transaction is processed and synchronized to the first main blockchain will be described.

Hereinafter, referring to FIG. 4, the main blockchain includes the first main blockchain 110 for the first cryptocurrency transaction, and the sub-blockchain includes the first sub-blockchain 120 for the first cryptocurrency transaction and In the case of including the second sub-blockchain 130, the third embodiment of the present invention will be described in detail. In the third embodiment, the second sub-blockchain 130 includes a second chain connector 134.

When the first chain connector 124 in the first sub-blockchain 120 generates a transaction transaction for the transaction of the first cryptocurrency, the transaction is generated and approved to confirm the transaction transaction, and the second sub-block is generated. When the second chain connector 134 in the chain 130 generates a transaction transaction for the transaction of the first cryptocurrency, the details of confirming the transaction transaction by generating and approving the sub-block are described in the first embodiment. Since it is the same as that, detailed description is omitted.

Meanwhile, a third transaction transaction for the transfer of the first cryptocurrency occurs between the customer (transaction generator) participating in the first sub-blockchain 120 and the customer participating in the second sub-blockchain 130. Once, the first chain connector 124 checks the validity of the third transaction transaction, and generates a first sub-block 126 including the third transaction transaction.

In one embodiment, the third transaction transaction may occur as a smart contract between a customer participating in the first sub-blockchain 120 and a customer participating in the second sub-blockchain 130.

When the first sub-block 126 generated by the first chain connector 124 is transmitted to the second chain connector 134, the second chain connector 134 checks the validity of the third transaction transaction, and the first Approve sub-block 126.

The transmission of the first sub-block 126 may be transmitted in a broadcasting manner to a node where the first chain connector 124 participates in the second sub-blockchain 130, and the received second sub-blockchain ( Nodes of 130) may be performed by sequentially transmitting to the second chain connector 134.

When the node 132 participating in the second sub-blockchain 130 exceeds a certain level, the approval of the first sub-block 126 may use a POA method for fast execution, and assumes a second TPS guarantee. Various approval methods such as POW, POS, and DPOS through nodes participating in the sub-blockchain 130 may be applied.

When the approval of the first sub-block 126 is completed, the second chain connector 134 transmits the approval result to the first chain connector 124, and connects the approved first sub-block 126 with the previous block. Confirm the third transaction transaction.

The transmission from the second chain connector 134 to the first chain connector 124 may be performed in the same manner as the transmission method of the first sub-block 126.

Meanwhile, when the block approval result is received from the second chain connector 134, the first chain connector 124 shares the approved first sub-block 126 to nodes participating in the first sub-blockchain, and the previous block ( 128).

Either the first chain connector 124 or the second chain connector 134 synchronizes the confirmed third transaction transaction to the main block 116 of the first main blockchain 110. Either of the first chain connector 124 or the second chain connector 134 may proceed to synchronize the results of the third transaction transaction at regular intervals, and proceed to synchronize the results of the third transaction transaction on the condition that a certain transaction is secured. Can be.

As such, according to the third embodiment, since it is possible to trade cryptocurrency between different sub-blockchains 120 and 130 connected to one main blockchain 110, the time required for processing and confirming the transaction is reduced. Of course, the application range of the system can be expanded.

4th Example

When a first cryptocurrency transaction and a second cryptocurrency transaction occur between a customer of the first sub-blockchain and a customer of the second sub-blockchain, the first cryptocurrency transaction and the second cryptocurrency transaction are the first sub-blockchain and the second sub-block A fourth embodiment will be described in which a chain is processed, the first cryptocurrency transaction history is synchronized to the first main blockchain, and the second cryptocurrency transaction history is synchronized to the second main blockchain.

Hereinafter, referring to FIG. 5, the main blockchain includes a first blockchain 110 for a first cryptocurrency transaction and a second blockchain 140 for a second cryptocurrency transaction, and a sub-blockchain is created. 1 connected to the main blockchain 110 and connected to the first sub-blockchain 120 for the first cryptocurrency transaction and the second main blockchain 140 and the third sub-blockchain for the second cryptocurrency transaction ( 150), the fourth embodiment of the present invention will be described in detail. In the fourth embodiment, the third sub-blockchain 150 includes a third chain connector 154.

When the first chain connector 124 generates a transaction transaction for the transaction of the first cryptocurrency, the contents of the sub-block are generated and approved to confirm the transaction transaction, and the third chain connector 154 is the second cryptocurrency When a transaction transaction for a transaction occurs, the details of determining the transaction transaction by generating and acknowledging the sub-block are the same as described in the first embodiment, so a detailed description thereof will be omitted.

When a fourth transaction transaction is exchanged between a customer participating in the first sub-blockchain 120 and a customer participating in the third sub-blockchain 150, the first cryptocurrency and the second cryptocurrency are exchanged. The first chain connector 124 generates the first sub-block 126 in which the fourth transaction transaction is stored.

In one embodiment, the fourth transaction transaction may occur as a smart contract between a participant participating in the first sub-blockchain 120 and a customer participating in the third sub-blockchain 150.

Meanwhile, since the fourth sub-transaction is related to the exchange between the first cryptocurrency and the second cryptocurrency, the first sub-block 126 including the fourth sub-transaction must also be verified by the third sub-blockchain 150 . However, the third sub-blockchain 150 may be difficult to verify the first sub-block 126 because the processable format may be different. Accordingly, when the format of the blocks is different, the first chain connector 124 may convert the first sub-block 126 into a third sub-block 710 that the third sub-blockchain 150 can verify.

To this end, the block management unit 210 of the first chain connector 124 may further include a block conversion unit 218 as shown in FIG. 2. The block conversion unit 218 of the first chain connector 124 converts the first sub-block 126 into a third sub-block 710.

In one embodiment, the block conversion unit 218 is included in the first sub-block 216 in the header area of the first sub-block 216 during block conversion as shown in FIG. 6 and the third sub-block ( If there is surplus information 822 that is not included in 710, the dummy area 810 is generated, and the surplus information 822 existing in the header area 820 of the first sub-block 126 is dummy area. The first sub-block 126 may be converted into the third sub-block 710 by moving and disposing at 810.

For example, when the first sub-block 126 is configured in a format as shown in FIG. 7A, and the third sub-block 710 is configured in a format as shown in FIG. 7B, the block conversion unit 218 Beneficiary, Logs Bloom, Difficulty, Extra Data, Gas Limit, Gas Used, Mix Hash, State Root, Transaction Root, which are included only in the third sub-block 710 and not included in the first sub-block 126, and The first sub-block 126 is transformed into the third sub-block 710 by defining information such as the Receipt Root as surplus information, generating a separate dummy area, and moving and disposing the surplus information into the dummy area.

As another example, the block conversion unit 218 is included in the header area of the third sub-block 710 in the first sub-block 126 and not included in the header area of the first sub-block 126 during the block conversion. When there is insufficient information, the first sub-block 126 may be converted into the third sub-block 710 by assigning the insufficient information to a predetermined value.

For example, when the first sub-block 126 has a format as shown in FIG. 7B, and the third sub-block 710 has a format as shown in FIG. 7A, the block conversion unit 218 is the third sub Beneficiary, Logs Bloom, Difficulty, Extra Data, Gas Limit, Gas Used, Mix Hash, State Root, which are included in the header area of the block 710 and not included in the header area of the first sub-block 126, The first sub-block 126 may be converted into the third sub-block 710 by defining information such as a transaction root and a receipt root as lack information, and assigning a predetermined value to the lack information.

In the above-described embodiment, it has been described that the first chain connector 124 converts the first sub-block 126 into the third sub-block 710. However, in another embodiment, the first chain connector 124 transmits the first sub-block 126 to the third chain connector 154 and the third chain connector 154 transfers the first sub-block 126. It may be converted to the third sub-block 710.

In this case, the third chain connector 154 further includes the block conversion unit 218 shown in FIG. 2, and the block conversion unit 218 of the third chain connector 154 is the first chain connector 124 ), The first sub-block 126 is converted to the third sub-block 710. Since the method of converting the first sub-block 126 to the third sub-block 710 has been described above, a detailed description will be omitted.

In another embodiment, both the first chain connector 124 and the third chain connector 154 include a block conversion unit 218, and the block conversion unit 218 of the first chain connector 124 is a first When the 1 sub-block 126 is converted to a reference block (not shown) in a predetermined format and transmitted to the block conversion unit 218 of the third chain connector 154, the block conversion unit 218 of the third chain connector 154 ) May convert the reference block to the third sub-block 710.

When the first chain connector 124 transmits the converted third sub-block 710 to the third chain connector 154, the third chain connector 154 approves the third sub-block 710. In this case, the approval of the third sub-block 710 is based on the premise that the POA method for fast execution may be used when the node 152 participating in the third sub-blockchain 150 exceeds a certain level, and TPS is guaranteed. Various approval methods such as POW, POS, and DPOS through nodes participating in the first sub-blockchain 120 may be applied.

When the approval of the third sub-block 710 is completed, the third chain connector 154 transmits the approval result to the first chain connector 124, and the approved third sub-block 710 is transferred to the previous third sub-block. By connecting with 712, a third transaction transaction is confirmed. At the same time, the third chain connector 154 synchronizes the confirmed third transaction transaction with the main block 146 of the second main blockchain 140. The third chain connector 154 may proceed to synchronize the results of the third transaction transaction at regular intervals, and may synchronize the results of the third transaction transaction on the condition that a certain transaction is secured.

Meanwhile, when the block approval result is received from the third chain connector 154, the first chain connector 124 transfers the first sub block 126 corresponding to the approved third sub block 710 to the previous first sub block ( 128). Thereafter, the first chain connector 124 synchronizes the determined third transaction transaction with the main block 116 of the first main blockchain 110.

As such, according to the fourth embodiment, since different types of cryptocurrency transactions are possible between sub-blockchains 120 and 130 that process different commutation cryptocurrency transactions, the time required to process and confirm transaction transactions is shortened. Of course, it is possible to expand the application range of the system.

Those skilled in the art to which the present invention pertains will understand that the above-described present invention can be implemented in other specific forms without changing its technical spirit or essential features.

For example, the above-described operating system may also be implemented in a program form that can be performed using various computer means and installed in a computer or sub.

Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modifications derived from the meaning and scope of the claims and equivalent concepts are included in the scope of the present invention. do.

100: double layer blockchain system
110: first main blockchain 120: first sub blockchain
122: first sub-node 124: first chain connector
210: block management unit 212: block generation unit
214: block approval unit 216: block connection unit
217: contract management unit 218: block conversion unit
220: communication unit

Claims (14)

A first main blockchain that creates and approves a first main block including a transaction transaction of the first cryptocurrency, and connects with the previous main block; And
And generating and approving a first sub-block in which the transaction transaction of the first cryptocurrency is stored, and including a first sub-blockchain connecting with the previous sub-block,
The first sub-blockchain proceeds to generate and approve the first sub-block including the first transaction transaction when a first transaction transaction for the first cryptocurrency occurs between customers participating in the first sub-blockchain. And a first chain connector for confirming the first transaction transaction and synchronizing the determined first transaction transaction to the first main blockchain. According to claim 1,
The first chain connector,
A block generation unit generating the first sub-block including the first transaction transaction when the first transaction transaction is generated through the electronic wallet for the first cryptocurrency;
A block approval unit that verifies the validity of the first sub-block by using a predetermined verification method and approves the first sub-block; And
And a block connection unit that connects the approved first sub-block to a previous sub-block to confirm the first transaction transaction, and synchronizes the determined first transaction transaction to the first main block of the first main blockchain. Double layer blockchain system, characterized in that. According to claim 1,
The first chain connector,
And a communication unit for broadcasting the first transaction transaction and the first sub-block to nodes participating in the first sub-blockchain. According to claim 1,
Further comprising a second main blockchain that creates and approves a second main block containing the transaction transaction of the second cryptocurrency,
The first chain connector checks the validity of the second transaction when a second transaction transaction for the second cryptocurrency between customers participating in the first sub-blockchain occurs, and the second transaction transaction is included in the second A dual layer blockchain system characterized by generating subblocks. According to claim 1,
It is further connected to the first main blockchain, further comprising a second sub-blockchain including a second chain connector that generates and approves a second sub-block containing the transaction transaction of the first cryptocurrency,
When the third transaction transaction for the first cryptocurrency occurs between the first customer participating in the first sub-blockchain and the second customer participating in the second sub-blockchain, the second chain connector generates the third A dual layer blockchain system characterized by confirming the third transaction transaction by performing approval for the first sub block including the transaction transaction. The method of claim 5,
The first chain connector transmits the first sub-block including the third transaction transaction to the second chain connector,
The second chain connector is a dual-layer blockchain system, characterized in that the first sub-block including the third transaction transaction is connected to the previous sub-block. The method of claim 5,
Any one of the first chain connector and the second connector synchronizes the confirmed third transaction transaction with the first main blockchain, a dual layer blockchain system. According to claim 1,
A second main blockchain that generates and approves a second main block including a transaction transaction of the second cryptocurrency; And
It is further connected to the second main blockchain, and further includes a third sub-blockchain including a third chain connector that generates and approves a third sub-block in which the transaction transaction of the second cryptocurrency is stored,
The first chain connector,
When a fourth transaction transaction for the exchange of the first cryptocurrency and the second cryptocurrency occurs between a first customer participating in the first sub-blockchain and a second customer participating in the third sub-blockchain, the first customer Create a first sub-block including a four transaction transaction, and when the fourth transaction transaction is confirmed, connect the first sub-block including the fourth transaction transaction to a previous sub-block, and the confirmed fourth transaction transaction Dual-layer blockchain system, characterized in that to synchronize to the first main blockchain. The method of claim 8,
The first chain connector further comprises a block converter for converting the format of the first sub-block in which the fourth transaction transaction is stored to the format of the third sub-block and transmitting the format to the third chain connector. Layer blockchain system. The method of claim 8,
The third chain connector receives the first sub-block in which the fourth transaction transaction is stored, and converts a format of the first sub-block in which the fourth transaction transaction is stored to the format of the third sub-block. Double layer blockchain system, characterized in that it further comprises. The method of claim 9 or 10,
The third chain connector performs approval for the third sub-block in which the fourth transaction transaction is stored to confirm the fourth sub-transaction, and transmits an approval result to the first chain connector. Blockchain system. The method of claim 9 or 10,
When the third sub-block in which the fourth transaction transaction is stored is approved, the third chain connector connects the third sub-block in which the fourth transaction transaction is stored to a previously generated sub-block, and the determined fourth A dual layer blockchain system characterized by synchronizing transaction transactions with the second main blockchain. The method of claim 9 or 10,
The block conversion unit,
When there is surplus information not included in the third sub-block in the first sub-block, the first sub-block is generated by generating a dummy area in the first sub-block and moving the surplus information in the dummy area. Double layer blockchain system, characterized in that to convert to the third sub-block. The method of claim 9 or 10,
The block conversion unit,
When there is insufficient information included only in the third sub-block area in the first sub-block, a predetermined value is assigned to the insufficient information to convert the first sub-block into the third sub-block. Double layer blockchain system.

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