KR20220094013A - A device and a method for providing a visualizing application platform of smart contracts based on neural block clusters of block chains - Google Patents

Abstract

The present invention relates to a smart contract visualizing application platform providing device based on a neural block cluster of a block chain and an operation method thereof. According to an embodiment of the present invention, the device comprises a smart contract visualizing application platform service providing device using a block chain network. Therefore, according to the embodiment of the present invention, provided are a node terminal device and an operation method thereof for constructing a secure block chain based on a block cluster.

Description

Apparatus for providing smart contract visualization application platform based on neural block cluster of blockchain and its operation method

The present invention relates to a terminal device and an operating method thereof. More specifically, the present invention relates to an apparatus for providing a smart contract visualization application platform based on a neural block cluster of a block chain and an operating method thereof.

In general, blockchain uses a peer-to-peer (P2P) network as one of the distributed databases. Distributed database is a technology that allows multiple users to share a large-scale database by physically distributing data. Blockchain creates a peer-to-peer network of cryptocurrency users connected to the Internet. Through this, transaction details (blocks) of virtual currency are stored in the user's computer. Among them, transaction details that match the data of the majority of users are verified as normal ledgers and stored in blocks. If errors such as omissions are found in a specific user's ledger, it is corrected by duplicating the normal ledger and replacing it. When a block containing new transaction details is created, the process of appending it to the back of the previous block is repeated. The name blockchain also means that transaction details (blocks) are linked. When trading, each user's transaction history is compared. Through this, the authenticity of transaction details can be identified, preventing data forgery. The security and stability of the blockchain increases as more users share data. In addition to Bitcoin, blockchain is being used for various online services such as cloud computing services.

In the case of a private blockchain, blocks are maintained by the distributed agreement of some authorized nodes.

However, this delegation-based technology can process many transactions compared to public blockchains, but when a network connection problem occurs for a delegated node, or the node terminal system is stopped or physically down, transaction and A problem in which the payment process is interrupted or delayed may occur. This can cause reorganization due to the occurrence of contradictory transactions in block chain data, and backup of information using hard forks and soft forks becomes more frequent.

On the other hand, blockchain can be applied to convenience services for the information-vulnerable class, but the vulnerable class is still in an unequal position due to non-transparent contract management.

To solve this, the applicability of blockchain-based smart contracts is also emerging, and the blockchain technology goes from a simple digital currency form to a second-generation blockchain using smart contracts to achieve speed, scalability, and interoperability. As it is evolving into the 3rd generation focusing on can do.

However, there is still a lack of an interface that considers user accessibility, and there is a risk of vulnerabilities in smart contracts due to unclear specifications.

The present invention has been devised to solve the above problems, and is a node terminal device that builds a secure block chain based on a neural block cluster so as to minimize the effect of failure of a delegated node and ensure block maintenance and stability. and an operation method thereof, and provides an apparatus for providing a smart contract visualization application platform based on a neural block cluster of a block chain, thereby improving usability.

An apparatus according to an embodiment of the present invention for solving the above problems includes a smart contract visualization application platform service providing apparatus using a block chain network including a neural block module.

According to an embodiment of the present invention, the authority nodes constituting the private block chain network are configured as a neural block cluster, and block generation using authority delegation from a follower node in the neural block cluster to the master node is processed, but the master node A node terminal that builds a secure block chain based on block clusters by providing neural block modules that can perform the selection consensus process in the neural block cluster to replace other follower nodes in the neural block cluster with the master node in the event of a failure A device and an operating method thereof can be provided.

Accordingly, according to an embodiment of the present invention, it is possible to prevent the transaction and payment process from being interrupted or delayed even when a network access problem occurs to the node to which the authority is delegated, the node terminal system is stopped, or is physically down, It is possible to prevent reorganization due to the occurrence of contradictory transactions in block chain data, and to minimize the backup of information using hard forks and soft forks.

In addition, the present invention can improve usability by providing an apparatus for providing a smart contract visualization application platform based on a neural block cluster of a block chain.

1 is a diagram schematically showing an entire system according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining a neural block cluster and a neural block generation process according to an embodiment of the present invention.
3 is a block diagram illustrating a neural block module according to an embodiment of the present invention in more detail.
4 is a flowchart illustrating a method of operating a neural block module according to an embodiment of the present invention.
5 is a view for explaining the entire platform providing system according to an embodiment of the present invention.
6 and 7 show a framework according to an embodiment of the present invention.
8 is a diagram illustrating a smart contract heterogeneous block chain relay application platform according to an embodiment of the present invention.
9 and 10 show a screen for installing a development environment and executing a consensus algorithm according to an embodiment of the present invention.
11 and 12 are diagrams illustrating SDK and API function definitions of a platform according to an embodiment of the present invention.

The following is merely illustrative of the principles of the invention. Therefore, those skilled in the art will be able to devise various devices that, although not explicitly described or shown herein, embody the principles of the present invention and are included within the spirit and scope of the present invention. Further, it is to be understood that all conditional terms and examples listed herein are, in principle, expressly intended solely for the purpose of enabling the concept of the present invention to be understood, and not limited to the specifically enumerated embodiments and states as such. should be

Moreover, it is to be understood that all detailed description reciting the principles, aspects, and embodiments of the invention, as well as specific embodiments, are intended to cover structural and functional equivalents of such matters. It should also be understood that such equivalents include not only currently known equivalents, but also equivalents developed in the future, i.e., all devices invented to perform the same function, regardless of structure.

Thus, for example, the block diagrams herein are to be understood as representing conceptual views of illustrative circuitry embodying the principles of the invention. Similarly, all flowcharts, state transition diagrams, pseudo code, etc. may be tangibly embodied on computer-readable media and be understood to represent various processes performed by a computer or processor, whether or not a computer or processor is explicitly shown. should be

In addition, the clear use of terms presented as processor, control, or similar concepts should not be construed as exclusively referring to hardware having the ability to execute software, and without limitation, digital signal processor (DSP) hardware, ROM for storing software. It should be understood to implicitly include (ROM), RAM (RAM) and non-volatile memory. Other common hardware may also be included.

The above objects, features and advantages will become more apparent through the following detailed description in relation to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can easily implement the technical idea of the present invention. There will be. In addition, in the description of the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically showing an entire system according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining a neural block cluster and a process of generating a neural block according to an embodiment of the present invention.

First, as shown in FIG. 1 , the block chain network system 1000 according to an embodiment of the present invention is a block chain mesh network formed by one or more node terminals 100 connected by wire or wirelessly through a network. can be configured.

In addition, the node terminals 100 may be connected to the block chain network through an input/output device and exchange data. The block chain generating device 1000 is a mobile device such as a mobile phone, a smart phone, a PDA, a tablet computer, a laptop computer, a computing device such as a personal computer, a tablet computer, a netbook, or an electronic device such as a security device for a TV, a smart TV, or a gate control It may include various electronic systems such as products.

And, each node terminal 100 may be provided with a communication module for accessing the block chain network. The blockchain network may be implemented as a wired network, such as, for example, a local area network (LAN), a wide area network (WAN), or a value added network (VAN). In addition, the block chain network is a mobile radio communication network, satellite communication network, Bluetooth (Bluetooth), Wibro (Wireless Broadband Internet), HSDPA (High Speed Downlink Packet Access), Wi-Fi (Wi-Fi), LTE (Long Term) Evolution) can be implemented in all kinds of wireless networks. If necessary, the block chain network may be a network in which wired and wireless are mixed.

In addition, each node terminal may register account information according to its own node access to transaction book data shared through a cloud method through a network. And, when a transaction of encrypted information for generating a block chain is required, each trader terminal may propagate the transaction information to be recorded in the transaction book data to each trader terminal.

And, according to the mutual verification process corresponding thereto, for example, when approval from node terminals of a certain ratio or more is processed, the transaction book data is updated and the information is shared, so that the transaction of encryption information for creating a block chain is performed can be processed.

Here, the transaction ledger data is a block chain ( block chain) data can be linked.

Accordingly, verification of forgery or falsification of the transaction book data can be easily processed according to the verification of the hash value of the block chain. To this end, each trader terminal may provide computing power for performing calculation and verification processing for calculating the hash value of the next block, and may obtain a corresponding reward.

The security stability of such a block chain can be formed by the system participation of data-sharing sharers. Accordingly, transaction information blocks including details of sharing between each sharer terminal connected to the block chain network and encryption information issuance/transaction details for creating a block chain can be sequentially stored, and for preventing forgery Transaction verification (proof-of-work) processing for sequentially block-chaining hash values can be performed distributedly in each trader terminal.

For such transaction verification processing, various distributed consensus algorithms may be used, and representative examples thereof include Proof-of-Work (PoW), Proof-of-Stake (PoS), and the like. Proof-of-Work (PoW, Proof-of-Work) is exemplified as a method of suppressing fraud by proving that resources (ex. computing power, etc.) To enable proof in proportion to the stake, PoS provides a process to control the probability of creating a block in proportion to the stake of the token each node has.

In particular, the node terminals 100 according to an embodiment of the present invention can build a private block chain network, and in the case of the private block chain network, the block generation and verification are controlled only from the specific node terminal to which the authority is delegated.

However, the private block chain network has the advantage of being able to quickly process distributed consensus, but as described above, if a failure occurs in the delegated terminal itself, not only the node terminal but also all terminals to which the authority has been delegated will actually participate in the agreement. There is a problem that it cannot be done. This can result in the differentiation of block chain data, reorganization may occur due to inconsistent data, and further decrease system stability due to frequent fork processes.

To solve this, referring to FIG. 2 , the node terminals 100 of the block chain system 1000 according to an embodiment of the present invention generate the above-described general block chain according to the delegation of authority for the block generation of the private block chain. and a block chain service unit 120 capable of processing a shared process. Here, in an embodiment of the present invention, the node terminals 100 may be node terminals 100 that participate in the private block chain network and are granted the right to create each block. Authority information set in the system 1000 may be given to terminals 100 participating in the private block chain network. The authority information can be divided into detailed authority for each function of block generation, mining, transaction, and consensus node participation, and the authority information is identified by the block chain service unit 120, so that processes that can be performed through the network can be controlled. have.

In addition, the node terminals 100 identify a neural block cluster including a preset number of nodes to which they belong, and activate the node terminal 100 selected by the voting consensus process in the neural block cluster as a master node. It may include a neural block module 110 .

In addition, the neural block module 110 that is not the master node may be activated as a follower node, delegates block generation authority to the node terminal address that is the master node, and new blocks and verifications generated by the node terminal that is the master node chain data can be received from the node terminal that is the master node.

And, when a failure occurs in the node terminal address of the master node, each neural block module 110 may perform a voting consensus process of activating any one of the follower node terminals included in the neural block cluster as the master node. .

When the master node terminal 100 is selected again by this voting consensus process, the master node terminal 100 again acquires the block creation authority delegation information from the follower node terminal as described above, and a new block and The verified chain data may be propagated to the follower node terminals.

Such a neural block cluster network may be formed between node terminals 100 within a certain number, and related setting information and setting conditions may be specified in the form of a pre-built smart contract and stored in the block chain data. For example, according to a regional condition, a network distance condition, or a network speed condition, a predetermined number of adjacent node terminals 100 may be formed as one neural block cluster network.

Such a neural block cluster network can build a peer-to-peer (P2P) network through information exchange between each node, and the neural block module 110 includes device information for identifying the node terminal 100 in each neural block cluster; Node name and P2P network address information can be pre-indexed and stored.

In addition, the neural block module 110 may monitor terminal information of the master node in the neural block cluster, and the master node does not exist, the response of the master node terminal is longer than a certain time, or receives a normal block from the master node When a failure such as failure occurs, the node terminal of the master node may be excluded from the neural block cluster network, and a voting consensus process for reselecting the master node terminal may be performed.

Here, the voting consensus process may be a process of selecting the most stable or reliable node terminal 100 among the node terminals 100 included in the neural block cluster according to a preset condition, for example, Based on device information or network response speed information, the neural block modules 110 of each node terminal 100 share selection voting information, and the node terminal 100 that obtained a majority or the highest number of votes is to be determined as the master node. can If the master node is not determined, the neural block module 110 may perform a re-voting after a certain period of time. If the master node is not determined even after re-voting, the current neural block cluster network is released and other accessible neural Block clusters can also be indexed to participate in other neural block cluster networks.

In addition, the above-described neural block module 110 may be implemented as a platform software development kit (SDK) combined with the block chain service unit 120, and the SDK is installed on various platforms on which the SDK can be installed, so that the node terminal ( 100) can be executed. In addition, the neural block module 110 may perform monitoring of processing information for quality evaluation of the software development kit, and transmit the monitoring information to a separate management service device.

3 is a block diagram illustrating a neural block module according to an embodiment of the present invention in more detail.

Referring to FIG. 3 , the neural block module 110 according to an embodiment of the present invention includes a device information setting unit 111 , a client setting unit 112 , a P2P address setting unit 113 , and a cluster setting unit 114 . , a master node function unit 115 , a follower node function unit 116 , and a monitoring unit 117 .

The device information setting unit 111 acquires, stores, and manages device information of the terminal 100 in which the neural block module 110 is installed. Here, the device information may include at least one of node name information, device address information, device performance information, device reliability information, and use network information of the terminal 100 . Such device information may be used to identify or build a neural block cluster, determine a master node, perform a master node voting consensus process, and the like.

The client setting unit 112 sets client information to access a block chain network including a neural block cluster network. The set client information may include block chain network client address information such as LISTEN-CLIENT-URL, and the terminal 100 accesses the block chain network through the block chain network client address information to obtain or share block information. can

Then, the P2P address setting unit 113 sets P2P address information in its own neural block cluster network for propagating block information between each neural block node constituting the neural block cluster network.

Then, the cluster setting unit 114 accesses the block chain network according to the client setting information, identifies one or more node terminals constituting the neural block cluster network to which the current terminal 100 belongs, and identifies P2P addresses of the identified terminals. Information is collected and stored, and internal network settings in the Neural Block Cluster Network are performed using each P2P address information.

As described above, the neural block cluster network may be configured by connecting node terminals 100 to which the authority to generate blocks within a predetermined number adjacent to each other according to a region or network speed, etc. are connected. To establish such a connection, the cluster setting unit 114 may identify a neural block cluster network to which it belongs, or may identify a new neural block cluster network, and the master shared with the P2P address information in the identified neural block cluster network. According to the node information, the master node functional unit 115 or the follower node functional unit 116 may be activated. To this end, the monitoring unit 117 may collect master node information in the neural block cluster network, and periodically monitor whether a failure occurs or the like.

The master node information can be shared within each neural block cluster network through the cluster setting unit 114 , and when a master node is not selected, the cluster setting unit 114 votes for the setting of the master node terminal 100 . The process can be done. Here, the voting consensus process may include a process of sharing the selection voting information of the master node based on the device information set by the device information setting unit 111 to each node terminal constituting the neural block cluster network.

To this end, the cluster setting unit 114 may collect device information of node terminals constituting the neural block cluster network, and determine a specific node terminal as a master node according to a priority based on the device information and preset condition information. You can share your own selection voting information for the P2P address information. If there are a plurality of node terminals having the same priority, the cluster setting unit 114 may determine a randomly selected node terminal from among a plurality of node terminals having the same priority as the specific node terminal.

Accordingly, any one terminal 100 having the highest number of votes or obtaining a majority of votes among the node terminals 100 may be activated as a master node terminal.

More specifically, the master node function unit 115 refers to the selection voting process result information in the cluster setting unit 114 to identify whether the terminal 100 performs the master node function, and the terminal 100 is the master node. If selected as , it performs the master node function. Here, when the master node functional unit 115 is activated, the follower node functional unit 116 to be described later may be controlled to be deactivated.

In addition, the master node function unit 115 performs a block generation and sharing update process according to the collection of transaction (transaction) information, and generates blocks of the master node terminal with other terminals in the neural block network in which the follower node function is activated, and Shared update information is transmitted through the P2P address information.

Accordingly, the master node function unit 115 can generate, verify, and propagate block information representing the neural block cluster, and as a result, the information is transmitted to other follower node function-activated terminals through the P2P network in the neural block cluster. can be broadcast.

On the other hand, the follower node function unit 116 may be activated in a terminal that is not selected as a master node, and receives block information broadcast through the neural block cluster network from a terminal in which the master node function is activated to provide a block chain service It is transmitted to the unit 120, and the block chain service unit 120 may perform block generation and update processing according to block information received from the master node.

Meanwhile, the above-described monitoring unit 117 may collect and monitor master node information in the neural block network, determine whether a failure of the master node terminal occurs, and transmit it to the cluster setting unit 114 . The failure of the master node terminal may be determined when block information is not received within a predetermined time, a response corresponding to confirmation information requested as master node information is not received, or the received information is abnormal.

In addition, the monitoring unit 117 may process the forgery detection of block chain information and deliver it to the management service device 200 , and in particular, the monitoring unit 117 includes a neural block shared from the master node into a neural block cluster, and all blocks. By comparing block chain data shared by the chain network, forgery can be detected, and when forgery of the master node is detected, it is also possible to request the exclusion of the master node's authority from other terminals in the neural block cluster network. .

Meanwhile, although not shown, the terminal 100 device may include a memory usable by the above-described block chain service unit 120 and the neural block module 110 . The memory may include computer-readable instructions, and the block chain service unit 120 and the neural block module 110 may perform the aforementioned operations as the instructions stored in the memory are executed in the processor. have. The memory may be a volatile memory or a non-volatile memory.

The memory may include a storage device to store the user's data. The storage device may be an embedded multimedia card (eMMC), a solid state drive (SSD), a universal flash storage (UFS), or the like. The storage device may include at least one non-volatile memory device. Non-volatile memory devices include NAND flash memory (NAND FlashMemory), vertical NAND flash memory (VNAND), NOR flash memory (NOR Flash Memory), resistive random access memory (RRAM), phase change memory ( Phase-Change Memory: PRAM), Magnetoresistive Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Spin Transfer Torque Random Access Memory (STT-RAM), etc. can be

4 is a flowchart illustrating a method of operating a neural block module according to an embodiment of the present invention.

Referring to FIG. 4 , the neural block module 110 according to an embodiment of the present invention configures device setting information using the device information setting unit 111 and client setting information using the client setting unit 112 first, Cluster information corresponding to the neural block cluster network is acquired through the cluster setting unit 114 (S101).

Then, the neural block module 110 determines whether another master node exists in the neural block cluster ( S103 ).

When the master node does not exist, the neural block module 110 transmits and shares the master node selection voting information determined through the cluster setting unit 114 to the cluster P2P network (S105).

Then, the neural block module 110 checks whether the terminal 100 itself is selected as the master node as a result of the selection vote (S107).

If selected as the master node, the neural block module 110 collects master node delegation information from other node terminals in the neural block network (S109), and activates the master node function unit 115 and transfers it to the block chain network. A registration process may be performed (S111).

Thereafter, the master node function unit 115 may generate a new block to update the block chain, and the new block and update information may be transmitted to other terminals in the neural network (S113).

According to an embodiment of the present invention, the new block information generated by the master node in this way can be called a neural block, the neural block is shared and verified through the block chain network, and the verified neural block is broadcast in the neural block cluster network. can be cast

On the other hand, if not selected as the master node, the neural block module 110 identifies the terminal selected as the master node, provides master node delegation information to the selected terminal (S115), and The activation and registration process to the blockchain network can be performed (S117).

Thereafter, the neural block module 110 in which the follower node function unit 116 is activated may receive the neural block information of the master node and update the stored and managed block chain data.

Meanwhile, the neural block module 110 determines the occurrence of a failure of the master node through the monitoring unit 117 (S121).

If no failure occurs, the neural block module 110 continuously performs the existing process of each node (S123).

However, when a failure occurs, the neural block module 110 re-performs the process of the above-described master node selection voting step S105 so that the neural block generation process of the neural block cluster is stably maintained.

Accordingly, the system reliability can be improved by stably replacing the neural block producer with another node terminal even if a specific master node fails, while maintaining the fast transaction process by performing distributed consensus for each neural block cluster. It is possible to prevent that (REORG.) from occurring and minimize the need for a fork.

5 is a view for explaining the entire platform providing system according to an embodiment of the present invention.

An application platform that supports smart contract visualization technology for improving block chain service usability according to an embodiment of the present invention can use the Ricardian contract creation confirmation framework (SW), and a contract in a form that the user can understand is Ricardian You can use the method of automatically creating a contract.

In addition, the platform according to an embodiment of the present invention provides a function of contract version management and contract content viewing through a block chain, and can perform identification of a contracting party linked with DID technology and distribution of a target block chain network.

And, the platform according to an embodiment of the present invention can provide a smart contract heterogeneous blockchain relay application platform (SW), which provides a smart contract conversion function suitable for the target block chain.

To this end, the smart contract heterogeneous blockchain relay application platform (SW) according to an embodiment of the present invention includes an analysis module for smart contracts of heterogeneous blockchain networks, and a relay application platform module for maintaining smart contract compatibility between heterogeneous blockchains. can do.

In addition, the platform according to an embodiment of the present invention provides improved mobile UI/UX convenience (accessibility) of smart contracts.

To this end, the platform according to an embodiment of the present invention provides an electronic signature for a contract linked with FIDO technology, smart contract execution processing, and identity verification function linked with DID technology.

In addition, the platform according to an embodiment of the present invention provides an interface for easily recognizing and confirming contract details, and provides an interface with enhanced convenience (accessibility) for the information disadvantaged class or the socially disadvantaged by linking the voice recognition API. to provide.

In particular, in the core technology for improving mobile UI/UX convenience (accessibility) of smart contracts according to an embodiment of the present invention, the present invention creates standardized data such as sender, receiver, date, title, and content, and uses a Ricardian contract. It provides an XML format transmission function for automatic generation, and provides a function to view the contents through user identity authentication.

In addition, in the core technology of the Ricardian contract creation and verification framework according to an embodiment of the present invention, the present invention includes a Ricardian contract automatic creation and editing function module.

Furthermore, the present invention includes a smart contract conversion and verification function module based on the Ricardian contract.

In addition, the core functional module of the smart contract heterogeneous blockchain relay application platform of the present invention is a “leader-based Consensus Algorithm” function module.

And, the smart contract heterogeneous block chain relay application platform core function module of the present invention includes a smart contract utilization function module in various development environments through support for blockchain development languages such as Solidity, Lua, and GO and EVM compatibility providing function.

Furthermore, the core function module of the smart contract heterogeneous blockchain relay application platform of the present invention includes a UI/UX accessibility module using functions such as TTS (text-to-speech) and STT (speech-to-text), and links with other software Through this, it is possible to provide the popular convenience and accessibility of smart contracts for use in daily life.

In addition, the platform according to an embodiment of the present invention provides a Ricardian contract creation/verification framework verification and smart contract visualization application platform, a REST API-based version and distribution function module of the Ricardian contract, a contract party It is possible to complete the smart contract visualization application platform, including the identification technology using their private and public keys, the content viewing confirmation system module, and the smart contract heterogeneous blockchain relay application platform verification module.

In addition, the platform according to an embodiment of the present invention provides an integrated development tool for managing applications required for work and business, and provides monitoring and management functions for block generation and transaction information management.

Accordingly, the platform system according to an embodiment of the present invention provides improved transparency and easy usability of various contract documents used in real life by applying smart contract visualization technology to other software, and a life block in connection with the 4th industrial revolution product It provides chain services, enables the application of smart contract visualization technology to part-time worker services and college student part-time job contracts, and can apply smart contract visualization technology to youth employment activity support services.

6 and 7 show a framework according to an embodiment of the present invention.

More specifically, the application platform system supporting smart contract visualization technology for improving blockchain service usability according to an embodiment of the present invention is a Ricardian contract creation/verification framework (SW), a smart contract heterogeneous blockchain relay application platform (SW), it may include a smart contract mobile UI/UX convenience (accessibility) improvement module.

As a main function, the Ricardian contract creation/verification framework (SW) provides a function to automatically create a contract in a form that can be understood by the user as a Ricardian contract, manages the version of the contract and reads the contract contents through the block chain It provides functions and provides functions for verifying the identity of the contracting party linked with DID technology and distributing the target blockchain network.

In addition, the smart contract heterogeneous blockchain relay application platform (SW) provides a smart contract converter suitable for the target blockchain, provides an analysis tool for smart contracts in heterogeneous blockchain networks, and maintains smart contract compatibility between heterogeneous blockchains It provides a relay application platform for

In addition, the smart contract's mobile UI/UX convenience (accessibility) improvement module provides electronic signature and smart contract execution processing for contracts linked with FIDO technology, identity verification function linked with DID technology, and easy recognition and confirmation of contract details. It provides an interface module with enhanced convenience (accessibility) for the information disadvantaged class or the socially underprivileged by linking the interface module and voice recognition API.

For this purpose, automatic generation technology to Ricardian contract for contracts created through XML-based general form, Hancom office/web drafting machine, etc., smart contract conversion technology suitable for heterogeneous blockchain networks, and automatic smart contract written in natural language Verification techniques may be used.

Accordingly, the platform according to an embodiment of the present invention can be utilized as a blockchain platform using smart contracts, and can provide smart contract visualization technology to digital asset trading platforms of various domains.

6 and 7, the embodiment of the present invention consists of the following overall process, from automatic creation of Ricardian contracts to XML-based user-recognizable contracts, smart contract transformation and verification, and distribution of heterogeneous blockchains. can be

Input: Data generated from an XML-based user-recognizable screen for smart contract creation

Process: Ricardian contract automatic creation → smart contract conversion → smart contract verification → heterogeneous blockchain distribution → block generation → smart contract viewing

Output: Safe and verified smart contract creation

The Ricardian contract framework constructed accordingly provides a smart contract visualization function.

In addition, it is possible to complete a smart contract visualization application platform by applying a function that can increase UI/UX accessibility to the socially disadvantaged such as the disabled and the elderly in this framework.

Accordingly, the core function of improving the mobile UI/UX convenience (accessibility) of the smart contract, the core function of the Ricardian contract creation and verification framework, and the core function of the smart contract heterogeneous blockchain relay application platform can be linked.

For example, the core function of improving the mobile UI/UX convenience (accessibility) of smart contracts is the ability to create standardized data such as sender, receiver, date, title, and content and send it in XML format to automatically generate it with Ricardian contract. , the ability to view contents through user identity authentication, SLedger block generation function for distributed smart contracts, UI/UX accessibility functions using functions such as TTS (Text-to-Speech) and STT (Speech-to-Text) may be included.

In addition, the core functions of the Ricardian contract creation and verification framework are the Ricardian contract and smart contract comparative analysis and trend research function, the Ricardian contract automatic creation and editing function based on the contract converted into XML, and the Ricardian contract-based smart Contract conversion and verification function, automatic conversion function from Ricardian contract to Ethereum (Solidity), Hyperledger (Go), Lua smart contract code, intermediate language definition for formal verification of converted code, and property verification based on it It includes automatic property verification to generate secure smart contract code. Accordingly, it provides the version and distribution function of the generated Ricardian contract based on the REST API, and may include an identity verification technology using the private and public keys of the contracting parties and a content viewing confirmation system.

And, the core function of the smart contract heterogeneous blockchain relay application platform can be implemented as a smart contract heterogeneous blockchain relay platform as shown in FIG. 7 .

Referring to Figure 7, the smart contract heterogeneous blockchain relay application platform is a RAFT-based BTCD BTCD to ensure the permanent preservation of the blockchain distributed ledger and the completeness of performance transactions: An open source key-value storage written using Lua language and Raft It can be implemented using a leader-based consensus algorithm function that selects a leader using

In addition, the smart contract heterogeneous blockchain relay application platform provides smart contract utilization functions in various development environments by supporting development languages such as Solidity, Lua, and Go and providing EVM (Ethereum Virtual Machine) compatibility.

In addition, the smart contract heterogeneous block chain relay application platform provides the ability to implement various and complex business logic and business processes in which smart contract-based contracts are performed on the block chain.

In addition, the smart contract heterogeneous blockchain relay application platform, even if it is impossible to add a node or does not participate in a node, SDK Software Development Kit: Source and tool package that enables software developers to create specific applications can be used to provide the ability to store data on the blockchain only to authorized users.

In addition, the smart contract heterogeneous block chain relay application platform verification and smart contract visualization application platform provides an integrated development environment (IDE) that can conveniently manage applications required for work and business, and creates blocks And it can provide monitoring and management functions for transaction information management, inquiry of ledger information such as the integrity of the stored distributed ledger, providing status information management functions, and status check and management functions for each node.

8 is a diagram illustrating a smart contract heterogeneous block chain relay application platform according to an embodiment of the present invention.

As shown in FIG. 8, a smart contract heterogeneous blockchain relay application platform system can be configured, and a blockchain platform architecture for building a heterogeneous blockchain platform for smart contract XML converter development can be configured.

9 and 10 show a screen for installing a development environment and executing a consensus algorithm according to an embodiment of the present invention.

9 shows the ETCD container: 3Node installation process for the RAFT consensus algorithm in the development environment installation and environment construction (3Node), and the 3Node installation process of the container screen, and FIG. 10 is a BTCD-based consensus algorithm execution screen (3Node). ), the consensus algorithm may be PoW (Proof of Work).

In addition, the present invention can provide smart contract utilization functions in various development environments through development language support such as Solidity, Lua, Go, etc. and EVM (Ethereum Virtual Machine) compatibility providing function, LuA smart contract function, in Eclipse environment A smart contract function, a Go language development environment support function, and a Go language development environment (Visual Studio Code) building function may be included.

11 and 12 are diagrams illustrating SDK and API function definitions of a platform according to an embodiment of the present invention.

11 and 12, the relay application platform for maintaining smart contract compatibility between heterogeneous blockchains is authorized by using the SDK between the first blockchain relay interface and the second blockchain relay interface. It is preferable that only the user may include a function of storing data in the block chain, and the SDK and API standards for block chain linkage are predefined as shown in FIGS. 11 and 12 . 11 illustrates a Java SDK function definition, and FIG. 12 illustrates a REST_API function definition.

The above-described methods according to an embodiment of the present invention may be produced as a program to be executed in a computer. In addition, the program may be stored in a computer-readable recording medium, and examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. have.

The computer-readable recording medium is distributed in a network-connected computer system, so that the computer-readable code can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the method can be easily inferred by programmers in the art to which the present invention pertains.

In addition, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the claims In addition, various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

Claims (1)

A smart contract visualization (VISUALIZING) application platform service providing device using a block chain network including a neural block module.

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