KR20200106603A - Block chain based distributed storage method - Google Patents

Abstract

The present invention relates to a blockchain-based block data distributing and storing method, wherein a blockchain network is coupled to an Internet of things (IoT) system to replicate and store block data in an IoT device determined as a virtual partner of a blockchain participant. According to the present invention, the method comprises: a first process of generating transaction information in block data on a network; a second process of transmitting the generated block data to all participants on the network; a third process of allowing the participants to mutually verify validity of the transaction information; and a fourth process of registering the block data completing verification of the transaction information to a chain. In the fourth process, a blockchain network system is coupled to an IoT system, any one of IoT devices to which the IoT system is applied is determined as a virtual partner with respect to each participant of a blockchain participant group and the block data stored in the network participant is replicated and stored in the IoT device which is the virtual partner thereof.

Description

Blockchain-based distributed storage method of block data{BLOCK CHAIN BASED DISTRIBUTED STORAGE METHOD}

The present invention relates to a method for distributed storage of block data based on a block chain, and more specifically, the block data is copied to an IoT device determined as a virtual partner of a blockchain network participant in combination with an Internet of Things (IoT) system. It relates to a method for distributed storage of block data based on a block chain to be stored.

In general, as shown in FIG. 1, currency transactions are made by connecting a number of users to a bank, which is a central management institution, and all transaction details are collectively stored and managed by the bank.

Blockchain is a decentralized data storage technology that stores transaction history data in a block, connects it in a chain, and simultaneously copies and stores it on numerous computers. As shown in Fig. 2, the transaction history is not stored on a centralized server, The transaction details are sent to all participants in the transaction, and the integrity of the transaction is maintained by preventing any user from falsifying or altering data by sharing information and collating it with each transaction.

Blockchain is stored in the terminals of all participants who participated in the blockchain network to maintain integrity.However, even if some participant's terminals are hacked and the existing contents are changed, data remains in multiple participant terminals, so data can be preserved continuously. There will be.

All participants' terminals participating in the blockchain network mutually verify the transaction details, and a new block is created when more than half of the consent is obtained.

The process of performing verification and creating a new block in this way is called a consensus algorithm. Among the consensus algorithms, the method applied to Bitcoin is the Proof of Work (PoW) method.

A block is a unit for storing data and is divided into a body and a header. The body contains the transaction details, and the header contains encryption codes such as merkle hash (merclout) and nonce (an arbitrary number related to encryption). Blocks are created every about 10 minutes, and they are connected to the previous block to form a block chain while collecting transaction records and creating blocks to verify reliability.

In the proof-of-work (PoW) method, in verifying transaction details of block data, a person who first searches for a specific nonce value through a computer operation is given the right to verify (mine) the block.

As the number of connected blocks increases, the difficulty increases gradually. In order to find these values, the only way to find these values is to put in random numbers and substitute them for solving, so the higher the computing power, the higher the computational power and the higher the probability of mining.

After all, the proof-of-work (PoW) method is a method of proving the validity of a block through work (an operation to find a value) and obtaining mining rights.

However, the proof-of-work (PoW) method has an inefficient operating structure in which computing resources are greatly wasted, and thus has a problem in that it has to endure enormous power consumption. Specifically, in the case of Bitcoin, it takes a lot of time to verify the integrity of the transaction transaction, and each participating node must store a transaction history (book) of about 150 GByte capacity. In addition, in order to approve a transaction, all full nodes must verify the transaction through the ledger and approve the transaction based on the verification result.

In other words, all nodes participating in the blockchain must independently store all of the same ledger and must perform all verification tasks by the same consensus algorithm. Due to this reason, the blockchain is very poor in resource efficiency from the perspective of the entire network.

As an alternative to solve the problem of the proof-of-work (PoW) method, a Proof of Stake (PoS) method has been proposed.

The proof-of-stake (PoS) method is a structure in which the probability of verifying the validity of a block increases as the number of corresponding coins is held. However, not only those with a large stake are selected, but the'Randomized block selection' method that is randomly selected and the'Coin Age based selection' method in which the holding period of the coin affects the coin stake are used.

This Proof-of-Stake (PoS) method does not require a hardware infrastructure because it does not consume computing power, and the maintenance cost is very inexpensive, and it is possible to escape from the mining monopoly problem by granting rights according to the stake and holding period. In addition, the proof-of-stake (PoS) method induces long-term holding of coins according to the conditions of the coin holding period, and this can have a positive effect on maintaining the market value of the coin.

However, the PoS method has a'Nothing at Stake' problem. This means that in a fork situation where two or more valid blockchains exist due to low resource cost, participants can act to create blocks on both or more blockchains to increase the probability of reward. This problem makes it difficult for the blockchain to converge into one, and in this case, a problem arises that it becomes vulnerable to malicious attacks and consensus on a valid chain cannot be quickly achieved.

In addition, in the case of the Proof of Stake (PoS) method, since the reward corresponding to the stake (coin) held is received, there is a problem that the richer the rich, the more reward is received, and the richer the poorer the poorer the richer the phenomenon.

In addition, a Delegated Proof of Stake (DPoS) method has been proposed as an alternative to solve the problems of the Proof of Work (PoW) method and Proof of Stake (PoS) method.

The delegated Proof-of-Stake (DPoS) method differs from the Proof-of-Stake (PoS) method in that the authority is transferred to a small number of representatives. Stakeholders exercise voting rights proportional to their stake and delegate authority to block generation and verification, network maintenance, and consensus on their behalf to a small number of people. Currently, the most successful case,'Steemit', has adopted this delegated proof-of-stake (DPoS) method and proves the possibility of the DPoS method and the public blockchain through 21 representatives.

The biggest advantage of the delegated proof-of-stake (DPoS) method is that a small number of representatives elected by voting generate blocks on behalf of the whole. Therefore, it has the advantage of relatively fast consensus speed and low cost. At the same time, general users who have no interest in the overall network management and the development of the project are rather more convenient.

However, the delegated proof-of-stake (DPoS) method has a problem that security is weakened due to a small number of nodes. When all networks are concentrated in a small number, it is natural that they become vulnerable to attacks, and attacks against witnesses who must transparently disclose their identity are more serious.

In order to solve the above problems, the applicant of the present invention can improve security and at the same time improve the irrationality that was concentrated on specific users, and a new consensus algorithm that can efficiently utilize resources and save time and cost With the recognition that it is necessary, it came to propose the present invention by combining it with an IoT system.

Internet of Things (IoT) is an evolved form from USN (Ubiquitous Sensor Network) and M2M (Machine to Machine).If M2M was the main purpose of communication between end-devices and people, the Internet of Things ( IoT) refers to communication that allows objects such as phones, books, and thermometers to communicate with people by expanding the range of objects. In the Internet of Things (IoT) technology, sensing technology, communication technology, and service technology exist, and through this, information of all things is built into a network like the Internet network, and various services can be provided through the acquired information.

The Internet of Things (IoT) is a concept of a space-of-things network that forms intelligent relationships such as sensing, networking, and information processing cooperatively with respect to three distributed environmental elements of humans, objects, and services without explicit human intervention. The main components of the Internet of Things (IoT) are not only communication equipment in wired and wireless networks, but also people, vehicles, bridges, and various electric devices (e.g., TVs, mobile phones, refrigerators, vacuum cleaners, washing machines, gas ranges, electric heaters). ), etc.

Korean Patent Registration No. 10-1678795 Korean Patent Publication No. 10-2019-0004309

An object of the present invention is a block chain-based block data capable of fusion of physical space, digital space, and biological space by combining a blockchain network system and an Internet of Things (IoT) system. It is to provide a distributed storage method.

Another object of the present invention is to provide a block-chain-based distributed storage method for increasing security by virtualizing network participants by storing block-chain-based block data in various hardware products to which an Internet of Things (IoT) system is applied. It is in providing.

In addition, another object of the present invention is to maintain transaction details between one or more nodes using block chain technology, among IoT devices included in the Internet of Things (IoT) system for each participant of the block chain network participant group. The goal is to provide a block-chain-based distributed storage method for block data that is stored in a network participant by deciding which one to be a virtual partner, and creates another virtual block chain by copying the block data stored in the network participant to his virtual partner, the IoT device.

However, the object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to the features of the present invention for achieving the above object,

The first process in which transaction information is generated as block data online, the second process in which the generated block data is transmitted to all participants on the network, the third process in which participants mutually verify the validity of transaction information, and verification of transaction information In a blockchain-based block data distributed storage method comprising a fourth process in which completed block data is registered in a chain,

In the fourth process, the block chain network system and the Internet of Things (IoT) system are combined, and the verified block data is stored in the block chain network participants and all hardware devices to which the Internet of Things (IoT) system is applied. It provides a block-chain-based distributed storage method for block data.

According to an additional feature of the present invention, in the fourth process, it is preferable to determine one of the IoT devices to which the Internet of Things (IoT) system is applied for each participant of the block chain network participant group as a virtual partner.

At this time, in the fourth process, it is preferable that the block data stored in the network participant is duplicated and stored in an IoT device, which is a virtual partner thereof, and periodically compared to confirm an attempt to forgery or alter the block data.

When applying the block data distributed storage method based on the block chain according to the present invention, there is an advantage in that a fast consensus speed and low cost are required even when the delegated proof-of-stake (DPoS) method is applied, and security can be improved. There is an effect.

1 is a diagram for explaining a general transaction method.
2 is a diagram for explaining an operation in which a transaction is performed in a block chain method.
3 is a view for explaining a state in which a block chain network system and an Internet of Things (IoT) system are combined according to the present invention.
4 is a diagram for explaining a process in which a network participant is virtualized according to the present invention and block data is duplicated and stored in a virtual partner.

Hereinafter, a block data distributed storage method based on a block chain according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 3 is a diagram for explaining a state in which a block chain network system and an Internet of Things (IoT) system are combined according to the present invention, and FIG. 4 is a virtualization of a network participant according to the present invention, and block data is copied to a virtual partner. It is a diagram for explaining the process of being distributed and stored.

In order to apply the present invention, as shown in FIG. 3, a blockchain network system and an Internet of Things (IoT) system are combined.

Since the configuration and operation of the blockchain network system and the Internet of Things (IoT) system are known, additional descriptions will be omitted.

However, hardware devices to which the Internet of Things is applied can be used, and it is preferable that Android-based IoT products are applied in the present invention. The present invention was implemented by connecting these IoT products to the platform and combining them with a blockchain network.

Consequently, in the present invention, a network participant group and a network virtual partner group exist. The network participant group is a group consisting of participants participating in a blockchain network, and the network virtual partner group is a group consisting of hardware devices to which the Internet of Things (IoT) system is applied.

Each participant of the blockchain network participant group is determined to be a one-to-one virtual partner with any one of the IoT devices included in the network virtual partner group.

Thereafter, as shown in the accompanying drawings, Fig. 4, the ledger file of the network participant is copied to the virtual partner, and another virtual blockchain is created.

At this time, block data stored in the network participant is periodically compared with block data stored by being copied to the IoT device, which is his virtual partner, to prevent forgery of block data.

Therefore, by storing block-chain-based block data in various hardware products to which the Internet of Things (IoT) system is applied, network participants can be virtualized to increase security, and even when maintaining transaction details between one or more nodes, block For each participant of the chain network participant group, the block data stored in the network participant is copied to the IoT device, which is his virtual partner, by determining any one of the IoT devices included in the Internet of Things (IoT) system as a virtual partner. By creating one more blockchain, the security can be further increased.

In addition, when the delegated proof-of-stake (DPoS) method is applied, not only has the advantage of fast consensus speed and low cost, but it is also possible to increase security.

Although the present invention has been described as above, it is only for explaining the embodiments of the present invention, and those of ordinary skill in the art to which the present invention pertains will understand that various modifications or equivalent embodiments are possible from the description of the invention. I will be able to. Therefore, the true scope of the present invention should be determined by the technical idea of the claims.

Claims (3)

The first process in which transaction information is generated as block data online, the second process in which the generated block data is transmitted to all participants on the network, the third process in which participants mutually verify the validity of transaction information, and verification of transaction information In a blockchain-based block data distributed storage method comprising a fourth process in which completed block data is registered in a chain,
In the fourth process, the block chain network system and the Internet of Things (IoT) system are combined, and the verified block data is stored in the block chain network participants and all hardware devices to which the Internet of Things (IoT) system is applied. Blockchain-based distributed storage method of block data.
The method of claim 1,
In the fourth process, a method for distributed storage of block data based on a block chain, characterized in that for each participant of a group of participants in a block chain network, any one of IoT devices applied with an Internet of Things (IoT) system is determined as a virtual partner.
The method of claim 2,
In the fourth process, block data stored in a network participant is duplicated and stored in an IoT device, which is a virtual partner thereof, and periodically compared to confirm attempts of forgery and alteration of block data. Distributed storage method.

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