KR102128832B1 - Network interface apparatus and data processing method for network interface apparauts thereof - Google Patents

Abstract

A network interface device and a data processing method using the network interface device are provided. The network interface card includes: a substrate including a network interface unit receiving node data from an external network through an external communication port, a bus connection unit connected to a bus of a computing device, and a storage connection unit connected to storage; A storage controller mounted on the substrate, connected to the storage through the storage connection, and controlling the storage; And mounted on the substrate, receives the node data from the network interface unit, determines a processing method, and if the determined processing method is a self-processing method, processes a function corresponding to the node data and stores the storage through the storage controller. It may include a purpose-oriented integrated circuit for performing a data processing operation for the, and transmits control data to the central processing unit through the bus when the determined processing method is the central processing method.

Description

A network interface device and a data processing method of the network interface device {NETWORK INTERFACE APPARATUS AND DATA PROCESSING METHOD FOR NETWORK INTERFACE APPARAUTS THEREOF}

The present invention relates to a network interface device and a data processing method using the network interface device, and more specifically, to a network interface device that enables data to be transmitted and received according to a specific purpose, and a method for processing the data by the network interface device. It is about.

The contents described in this section provide background information for the present embodiment, and are not included in the prior art by merely describing this section.

Computing devices such as servers and PCs can process, store, and transmit and receive data to and from the outside using resources such as a CPU, memory, network, and storage medium (storage). A network interface card (NIC) may be used for the computing device to transmit or receive data. Data received by the network interface is transferred to the CPU using the system bus, and the CPU can process the received data and store it in storage through a data cable or the like. Alternatively, the CPU may perform data processing such as encryption on the data stored in the storage, and transmit the processed data to the network interface card through the system bus and transmit the data to the outside.

In addition, distributed ledger management systems using block chain technology have been utilized in various fields. Blockchain technology is a technology that records the confirmed transaction details in a block for a certain period of time, transmits each block to all participants in the network, and allows the approved block to be connected to the existing blockchain to make a transaction. Computing devices constituting each node of the distributed ledger management system using blockchain technology record transaction data in a book that anyone can view, and each computing device periodically verifies records to prevent hacking.

Therefore, a distributed ledger management system using a block chain technology needs to transmit a block including transaction data to a computing device constituting a node, and receive a result of each computing device replying a result of recording transaction data in a ledger. However, there is a delay until transaction data is delivered to each node for processing and the transaction data is reflected in all books. Due to this, there is a problem that a transaction per second (tps) that can be processed by the distributed ledger management system is deteriorated.

The technical problem to be solved is to provide a network interface device used for a specific purpose, a data processing method using the network interface device, and a computing device.

Another technical problem to be solved is to provide a network interface device and a control method for improving encryption and decryption processing performance for data transmission and reception.

Another technical problem to be solved is to provide a network interface device and a control method for improving the input/output speed of a storage medium that is received or transmitted.

Another technical problem to be solved is to provide a computing device capable of constructing a blockchain node having a high tps.

The technical problems are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the technical problem, a network interface device according to some embodiments includes an external communication port for receiving data from an external device; Decoding a data received from the external communication port, and an application specific integrated circuit embedded in the network interface device; And an I/O port connected to storage and storing data decrypted by the specific purpose-oriented integrated circuit in the storage.

In order to solve the technical problem, the network interface card according to some embodiments includes a network interface unit that receives node data from an external network through an external communication port, a bus connection unit connected to a bus of a computing device, and a storage connection unit connected to storage. A substrate comprising a; A storage controller mounted on the substrate, connected to the storage through the storage connection, and controlling the storage; And mounted on the substrate, receives the node data from the network interface unit, determines a processing method, and if the determined processing method is a self-processing method, processes a function corresponding to the node data and stores the storage through the storage controller. It may include a purpose-oriented integrated circuit for performing a data processing operation for the, and transmits control data to the central processing unit through the bus when the determined processing method is the central processing method.

In addition, according to some other embodiments, the purpose-oriented integrated circuit may classify header data from the node data and determine the processing method using the divided header data.

Further, according to another exemplary embodiment, the purpose-oriented integrated circuit may determine the processing method as its own processing method when the header data calls a predetermined function.

Further, according to some other embodiments, the predetermined function may include a kernel command of a communication layer for processing data by a node of the blockchain.

Further, according to some other embodiments, the purpose-oriented integrated circuit classifies individual transaction data and other transaction data from the node data, and passes the individual transaction data and other transaction data through the storage controller without going through the bus. It can be stored in the storage.

In addition, according to some other embodiments, the network interface card may further include an integrated circuit for processing blockchain data that decrypts the node data.

In addition, according to some other embodiments, the network interface card may further include a key management module that provides a key for decrypting the received node data or encrypting data to be transmitted.

In addition, according to another exemplary embodiment, the key management module may include a hardware chip based on a physically unclonable function.

In addition, according to another exemplary embodiment, the purpose-oriented integrated circuit acquires a key from the hardware chip when the determined processing method is a self-processing method, and decrypts the node data using the obtained key can do.

Further, according to another exemplary embodiment, the purpose-oriented integrated circuit generates metadata for the data processing task after completing the data processing task, and generates the metadata of the computing device through the bus. Can be loaded on.

In addition, according to some other embodiments, the metadata may include information about location information and changed data of data stored in the storage by the data processing operation.

In order to solve the technical problem, a purpose-oriented integrated circuit according to some embodiments includes: when node data is received, classifying the node data into header data, individual transaction data, and other transaction data; Determining a processing method based on the header data; And an operation of processing a function corresponding to the node data and performing a data processing operation on the storage through the storage controller when the processing method is a self-processing method.

Further, according to some other embodiments, the operation of determining the processing method may include an operation of determining the processing method by itself when the header data calls a predetermined function.

Further, according to some other embodiments, the predetermined function may include kernel commands of a communication layer for processing data by a node of the blockchain.

Further, according to some other embodiments, the purpose-oriented integrated circuit may include an integrated circuit for processing blockchain data that decrypts the node data.

In order to solve the technical problem, according to some embodiments, a computing device constituting a node of a distributed ledger management system includes: a bus that provides a communication path for data; A central processing unit connected to the bus; Storage for temporarily storing data; And a network interface card that determines a processing method when node data is received, and performs a data processing operation on the storage without going through the bus when the determined processing method is a self-processing method.

In addition, according to some other embodiments, the blockchain node computing device further includes a memory connected to the bus, and the network interface card generates metadata for a data processing operation after performing the data processing operation. Then, the generated metadata is loaded into the memory of the computing device, and the memory may provide the metadata to the central processing unit at the request of the central processing unit.

Further, according to some other embodiments, the network interface card may include a purpose-oriented integrated circuit for processing the received node data.

In addition, according to some other embodiments, the storage stores a book stored in a node of the blockchain system, and the network interface card interrupts the central processing unit when the node data is data related to the book. The ledger can be changed according to the node data without generating it.

In order to solve the technical problem, according to some embodiments, a data processing method performed by a computing device includes: receiving data; Classifying the received data into header data, individual transaction data and other transaction data, and classifying the type of the data by calling a function included in the header data; And without generating an interrupt to the central processing unit of the computing device, storing the individual transaction data and the other transaction data in a storage location of a designated storage according to the distinguished type.

In addition, according to some other embodiments, the step of separating includes the step of separating information changed in the process of storing the header data and completing the proof of work, and the step of storing is among the individual transaction data. Processing data corresponding to the changed information using a purpose-oriented integrated circuit, and result data processed using the purpose-oriented integrated circuit among the individual transaction data, unchanged information and other transactions among the individual transaction data And storing the data.

In addition, according to another exemplary embodiment, the processing may include obtaining a key for decrypting data from a hardware chip based on a physically unclonable function, and the changed information based on the key It may include the step of decoding the data corresponding to.

In addition, according to some other embodiments, generating metadata for a result of storing the individual transaction data and the other transaction data in the storage; And loading the metadata into the memory of the computing device.

1 is a view for explaining the characteristics of a distributed ledger management system.
2 is a diagram illustrating a structure of a network interface device provided in a computing device according to some embodiments.
3 is a diagram illustrating a process in which a computing device stores received data according to some embodiments.
4 is a diagram illustrating a process in which a computing device transmits changed data to another node according to some embodiments.
5 is a diagram for explaining the structure of a computing device.
6 is a diagram for describing structures of a computing device and a network interface device according to some embodiments.
7 is a diagram illustrating a hierarchical structure configured by a network interface device according to some embodiments.
8 is a flowchart illustrating a process for processing data according to some embodiments.
9 is a diagram for explaining a structure of a network interface device including an integrated circuit for processing blockchain data according to some other embodiments.
10 is a diagram for explaining the structure of a network interface device including a key management module according to some other embodiments.
11 is a view for explaining a process for processing data through a central processing unit.
12 is a flowchart illustrating a process of processing data using a network interface device according to some embodiments.
13 is a conceptual diagram illustrating data classified according to some embodiments.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings. Advantages and features according to embodiments, and methods for achieving them will be clarified through embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments are provided to inform a person of ordinary skill in the art to the scope of the invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used as meanings commonly understood by those skilled in the art. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless specifically defined. The terminology used herein is for describing the embodiments and is not intended to limit the scope. In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase.

Hereinafter, some embodiments of the present invention will be described with reference to the drawings.

1 is a view for explaining the characteristics of a distributed ledger management system.

Unlike a centralized system in which a specific manager or owner manages data, the distributed ledger management system is distributed and managed by a distributed ledger to a plurality of nodes through a peer to peer (P2P) network. Here, the distributed ledger distributed nodes may be configured as a computing device such as a server or a PC.

When a transaction occurs in the computing device 100 constituting a node of the distributed ledger management system, the computing device 100 records the transaction that occurred in the distributed ledger managed by the computing device 100. When a transaction is recorded and changes occur in the distributed ledger, the computing device 100 needs to transmit data to the computing devices 101 constituting other nodes so that the transaction is recorded in the distributed ledger managed by other nodes. There is. In addition, the distributed ledger management system must perform a verification process for the changed distributed ledger of the computing device 100 and the computing devices 101.

Therefore, in the distributed ledger management system, since a lot of traffic is generated each time a transaction occurs, the computing device 100 and the network interface device of the computing devices 101 need to have a high support traffic capacity.

In addition, in order to transmit and receive encrypted data when transmitting and receiving data, a decryption process of the received data must be performed each time data is received, and an encryption process of encrypting data must be performed each time data is transmitted. When receiving data, the network interface device transmits and decrypts data received from the outside to the CPU, and the data decrypted by the CPU can be stored in the storage. When transmitting data, the CPU reads the data to be transmitted, performs an encryption process, and then transmits the encrypted data to a network interface device and transmits it to the outside. However, in this case, there are limitations in transaction processing performance due to problems such as a limitation in the transmission speed of the system bus connecting the CPU and the network interface device, and an increase in the load of the CPU due to the increase in transactions.

In addition, in order to process transactions quickly, it is also necessary to improve the input/output speed to the storage.

2 is a diagram illustrating a structure of a network interface device provided in a computing device according to some embodiments.

According to some embodiments, the network interface device 200 provided in the computing device 100 may include an external communication port 210, a specific purpose-oriented integrated circuit 202 and an I/O port 203. According to some embodiments, the network interface device 200 may be in the form of a network interface card (NIC). Here, the network interface device 200 according to some embodiments may support optical cable communication to secure traffic capacity.

The external communication port 210 may receive data from the external device through the network 10 or transmit data to the external device.

The external communication port 210 embeds the received data into the network interface device 200 when data (eg, data for a transaction or distributed ledger) is received from the external device through the network 10. ) Can be configured to deliver to an Application Specific Integrated Circuit (ASIC) 202. The specific use-oriented integrated circuit 202 according to some embodiments may be configured to decrypt the received data when the data is received. The specific purpose-oriented integrated circuit 202 that decrypts the data may store the decrypted data in the storage 210 through the I/O port 203 connected to the storage 210. The storage 210 is not necessarily embedded in the computing device 100, and may be connected to the outside of the computing device 100.

Alternatively, when changed data occurs in the data stored in the storage 210, for example, when the generated transaction is recorded in the distributed ledger, the specific purpose-oriented integrated circuit 202 may encrypt data for the changed information. . For example, data for a transaction or data for a changed distributed ledger can be encrypted. The application-specific integrated circuit 202 can transmit encrypted data to the network 10 through the external communication port 201.

Accordingly, the network interface device 200 may record the data received in the storage 210 without going through a separate system bus or encrypt and transmit the data from the storage 210. According to some embodiments, the I/O port 203 may be connected to the storage 210 using a doubler to improve the input/output speed to the storage.

3 is a diagram illustrating a process in which a computing device stores received data according to some embodiments.

First, in step S310, when the network interface device 200 provided in the computing device 100 according to some embodiments receives data from an external device, the network interface device 200 receives the received data from the network interface device ( 200) embedded in a specific use oriented integrated circuit 202.

Thereafter, in step S320, the computing device 100 may decrypt the received data using the specific purpose-oriented integrated circuit 202. The computing device 100 decodes the received data using the specific purpose-oriented integrated circuit 202 embedded in the network interface device 200, thereby minimizing the increase in CPU load without going through a separate system bus and more quickly. The decoding process can be performed.

Thereafter, the network interface device 200 of the computing device 100 may store the data decrypted in step S330 in the storage 210 connected to the network interface device 200.

4 is a diagram illustrating a process in which a computing device transmits changed data to another node according to some embodiments.

First, in step S410, the computing device 100 may determine whether changed data has occurred in the storage 210. For example, the computing device 100 may determine whether a newly generated transaction is recorded in the distributed ledger stored in the storage 210.

When the changed data occurs in the storage 210, the computing device 100 may encrypt the changed data or data related to the changed data in step S420 using the specific purpose-oriented integrated circuit 202. The computing device 100 encrypts the changed data by using a specific purpose-oriented integrated circuit 202 embedded in the network interface device 200, thereby minimizing the increase in CPU load without going through a separate system bus and encrypting the data more quickly. You can do

Thereafter, the network interface device 200 of the computing device 100 may transmit the encrypted data to another node in step S430.

5 is a diagram for explaining the structure of a computing device.

The computing device may include a network interface card 510, a bus 520, a central processing unit 530, a memory 540, a storage controller 550 and storage 210. 5 illustrates RAM as an example of the memory 540.

The network interface card 510, the central processing unit 530, the memory 540 and the storage controller 550 may be mounted in a slot provided on the motherboard and connected to the bus 520. The bus 520 provides a path for transmitting and receiving data between components connected to the bus 520.

When receiving data from the network 10, the network interface card 510 may transmit control data for the data received through the bus 520 to the central processing unit 530. Here, the received data may be loaded into the memory 540.

The central processing unit 530 may receive an interrupt signal to process the received data according to the control data. The central processing unit 530 that has received the interrupt signal may stop an existing operation and process the received data according to the control data. The central processing unit 530 may store the processed data in the storage 210 through the storage controller 550. Here, the storage 210 may include a storage medium such as a solid state disk (SSD), a hard disk driver (HDD), or a flash memory.

Here, the central processing unit 530 must generate an interrupt to process the received data and stop the work that was being performed on the basis, so if a large number of transactions occur, the central processing unit 530 generates excessive load or central processing Degradation of performance for the device 530 to perform a task may occur.

In addition, with the development of communication devices, the network interface card 510 can receive a large amount of data from the network 10. For example, a network interface card 510 that can receive data at a rate of 200 Gbps may be used. However, the bus 520 may not have a bandwidth sufficient to accommodate all data received by the network interface card 510. For example, a PCIe (Peripheral Component Interconnect express) bus can provide a bandwidth of 128 Gbps. Accordingly, a bottleneck may occur because the bandwidth that the bus 520 can accommodate is smaller than the bandwidth at which the network interface card 510 receives data.

Accordingly, there is a need for a method for reducing the bottleneck caused by a decrease in the bandwidth of the bus and for solving the delay caused by the central processing unit 530 processing the data.

6 is a diagram for describing structures of a computing device and a network interface device according to some embodiments.

The computing device 100 according to some embodiments may include a network interface device 200, a bus 520, a central processing unit 530, a memory 540, and storage 210.

The network interface device 200 according to some embodiments may be a network interface card in which a network interface unit (NIU) 220, a specific purpose-oriented integrated circuit 202, and a storage controller 230 are mounted on a board. have. Here, the substrate of the network interface device 200 is an external communication port for receiving data from the external network 10, a bus connection unit for connecting to the bus 520, and storage for connecting to the storage 210 It may include a connection.

The network interface unit 220 may receive data from the external network 10 through an external communication port. For example, the network interface unit 220 may receive node data delivered to a node of the distributed ledger management system.

The processing method of the specific-purpose integrated circuit 202 for data received through the network interface unit 220 may be determined. Here, when the received data is data for a specific purpose performed by the specific purpose-oriented integrated circuit 202, a self-processing method may be selected. For example, when the received data is node data for changing the ledger stored in a node of the distributed ledger management system, a method in which the specific purpose-oriented integrated circuit 202 processes the received data itself may be selected. Conversely, when the received data is general data, a central processing method of transmitting control data to the central processing unit 530 and processing the data by the central processing unit 530 may be selected.

Here, the header data of the data received through the network 10 may include information for determining a data processing method. For example, the header data includes a protocol definition, and the network interface device 200 determines whether the received data is data for a specific purpose performed by the specific purpose-oriented integrated circuit 202 according to a function executed according to the protocol definition. Can determine whether In this case, the purpose-oriented integrated circuit 202 may distinguish header data from the received data, and determine the processing method of the received data using the header data. For example, when the header data exports a function including a kernel instruction of a communication layer for processing the received data, the purpose-oriented integrated circuit 202 uses the processing method of the received data in its own processing method. Can decide.

When processing data received by the self-processing method, the network interface device 200 may perform a data processing operation on the storage 210 without going through the bus 520. For example, data received through the network interface unit 220 or data processed by the purpose-oriented integrated circuit 202 may be stored in the storage 210 without going through the bus 520 using the storage controller 230. Can.

When the data processing for the storage 210 is performed based on the self-processing method, the specific purpose-oriented integrated circuit 202 may generate metadata about the data processing operation performed. The application-specific integrated circuit 202 may load the generated metadata into the memory 540. The meta data may include, for example, data identification information that is information about what data is stored and storage location information that is information about which location of the storage 210 the data is stored in.

The central processing unit 530 may access stored data using metadata loaded in the memory 540 when a request is made for data processed based on its own processing method.

Therefore, when using the computing device with the network interface device according to the present embodiment, when processing data for a specific purpose, such as node data of a distributed ledger management system, there is no need to generate an interrupt for the central processing unit. The performance of the processing device can be improved, and the processing speed of data can be increased. In addition, since there is no need to transmit the received data through the bus, it is possible to prevent a bottleneck due to a decrease in bandwidth of the bus.

7 is a diagram illustrating a hierarchical structure configured by a network interface device according to some embodiments. The hierarchical structure including the network interface device 200 may include a communication layer 710, a hardware abstraction layer (HAL) 720, and a physical layer 730. Can. However, the hierarchical structure illustrated in FIG. 7 is for describing the operation of the network interface device 200, and the hierarchical structure implemented according to an embodiment may further include other layers not illustrated in FIG. 7.

In order to perform hardware functions on the received data, hardware functions may be controlled through a path 71 through the communication layer 710, the hardware abstraction layer 720, and the physical layer 730.

In contrast, according to some embodiments, when the received data uses a kernel command of the communication layer 710, data received or received directly to the storage 210 without going through the physical layer 730 The result of processing the data may be written, or data may be read from the storage 210. Thereafter, the result data for the operation performed on the storage 210 may be loaded into the memory 540 through the path 73 through the communication layer 710, the hardware abstraction layer 720, and the physical layer 730. have.

8 is a flowchart illustrating a process in which a computing device processes data according to some embodiments.

First, in step S810, the computing device may receive data through the network interface device. Here, the received data may include information capable of determining a method for processing data according to a predetermined method in a program used for data transmission and reception.

According to some embodiments, when the received data is node data of a distributed ledger management system, the node data may include header data, individual transaction data, and other transaction data. Here, the header data may include information related to a protocol or encryption related to the data. Individual transaction data may include information about the transaction. In addition, other transaction data may include data for verifying the authenticity of individual transaction data. According to some embodiments, a device that generates node data may include information that enables a computing device that has received the node data to determine how to process the node data in header data as set in the program. Here, according to some embodiments, a device generating node data may configure node data such that header data includes kernel commands of a communication layer.

Thereafter, in step S820, the computing device may determine whether to process the received data in its own processing method. Here, the self-processing method means that the network interface device processes itself without generating an interrupt signal for the received data to the central processing device.

According to some embodiments, in step S820, the computing device may classify the header data from the received data, and determine the processing method of the received data using the separated header data. For example, when the header data is configured to call a predetermined function, the computing device may determine a processing method of the received data as its own processing method. Here, the predetermined function may include a kernel command of a communication layer for a node of the blockchain to process data.

In response to the received data, an application program running on the computing device may call the predetermined function to classify the received data by type, and transfer the divided data to a storage location of a designated process or storage. In addition, the called function may be for performing an operation of returning to the process by generating the processed result or the result delivered to the storage location of the storage as meta data by passing the data separated by the specified process.

If it is determined to process the received data according to its own processing method, in step S831, the computing device may classify the received data. According to some embodiments, when the received data is node data, the computing device may discriminate information that does not change and information that changes with respect to the ledger recorded in the node.

Thereafter, in step S832, the computing device may process data included in the information in which the change occurs using the purpose-oriented integrated circuit of the network interface device. Further, in step S833, the computing device may store the result value processed using the purpose-oriented integrated circuit in a storage location on the designated storage. In addition, among the data received in step S833, information that does not change can be stored in the storage without additional processing.

When the received data includes individual transaction data and other transaction data, the computing device may distinguish individual transaction data from other transaction data from the data received in step S831. Thereafter, the computing device may store other transaction data in a designated location on the storage. Since the other transaction data is an electronic document for verifying the transaction, etc., no separate change occurs, so the computing device can be stored in the storage without any separate data processing. In addition, the computing device may store a portion of the individual transaction data that does not change in storage without additional processing. Here, the computing device may determine a location to store the data using header data included in the data.

Thereafter, in step S834, the computing device may generate metadata about the result of processing the data. According to some embodiments, meta data may include location information of data stored in storage as a result of processing the data and information about changed data.

The generated metadata is loaded into the memory of the computing device, and may be provided to the central processing device at the request of the central processing device. Therefore, when data processed through steps S831 to S834 is received, the process performed by the central processing unit may continue without being stopped.

If the processing method for the data received by the computing device in step S820 is determined as a central processing method rather than a self-processing method, the computing device may transmit control data for the data received in step S841 to the central processing device.

In addition, in step S842, the computing device may generate an interrupt in the process of the central processing unit in order for the central processing unit to process the received data.

Thereafter, in step S843, the central processing unit may stop the existing running process and process the received data.

9 is a diagram for explaining the structure of a network interface device including an integrated circuit for processing blockchain data according to some other embodiments. In particular, FIG. 9 relates to a network interface device for processing data when the received data is blockchain data.

The network interface device according to the present embodiment may include a network interface unit 220, a specific purpose-oriented integrated circuit 202, a storage controller 230, and an integrated circuit 910 for blockchain data processing.

The network interface device according to the present embodiment may form a kernel-type communication layer 900. When the received data uses the kernel command of the communication layer 900, when the data identified from the received data is changed, when processing the blockchain data is required, the data is processed using the integrated circuit 910 for blockchain data processing. can do. The communication layer 900 for processing blockchain data may be referred to as a block chain node data communication layer (BNCL).

Here, for example, the integrated circuit 910 for blockchain data processing may be a specific purpose-oriented integrated circuit for performing data processing based on Hyperledger™. According to an embodiment, the integrated circuit 910 for blockchain data processing may perform encryption/decryption of node data transmitted and received in a blockchain-based distributed ledger management system.

The purpose-oriented integrated circuit 202 and the integrated circuit 910 for blockchain data processing are not necessarily physically separated components. Depending on the embodiment, the application-oriented integrated circuit 202 and the integrated circuit 910 for blockchain data processing may be physically configured in one chip.

The storage controller 230 may store data processed by the application-oriented integrated circuit 202 and the integrated circuit 910 for processing blockchain data in one or more storages 210. The storage controller 230 may be connected to a plurality of storages 210 to provide a hub function.

The network interface device according to the present embodiment may be used as a device for processing blockchain data. In this specification, an apparatus for processing blockchain data may be referred to as a block-chain processing unit (BPU).

10 is a diagram for explaining the structure of a network interface device including a key management module according to some other embodiments.

The network interface device 200 according to the present embodiment may include a network interface unit 220, a specific purpose-oriented integrated circuit 202, a storage controller 230, and a key management module 1000.

The key management module 1000 may provide a key for encrypting data to be transmitted or decrypted by the specific purpose-oriented integrated circuit 202 by receiving the data received through the network interface unit 220.

According to some embodiments, the key management module 1000 may include a hardware chip based on a Physically Unclonable Function (PUF). PUF means a function of outputting an arbitrary eigenvalue using hardware characteristics. The key management module 1000 may provide the unique value generated through the PUF as an encryption key.

When processing data received through the network interface unit 220 in a self-processing manner, the key management module 1000 may provide an encryption key to the specific purpose-oriented integrated circuit 202 from a PUF-based hardware chip. The specific purpose-oriented integrated circuit 202 that has obtained the encryption key can decrypt the received data using the obtained key.

11 is a view for explaining a process for processing data through a central processing unit.

First, when the network interface device 200 receives data in step S1110, the network interface device 200 may determine a processing method of the received data. When the determined processing method is the central processing method, the network interface device 200 may transmit control data to the central processing device 530 through a bus (S1120).

Thereafter, in step S1130, the central processing unit 530 may receive an interrupt signal from the interrupt handler and generate an interrupt for the process being executed in the central processing unit 530. Thereafter, when the central processing unit 530 transfers the control data to the network interface device 200, the network interface device may load the received data into the memory 540.

Thereafter, in step S1140, the central processing unit 530 may stop the existing process and process the received data according to the control data. Thereafter, in step S1150, the central processing unit 530 may store the processed data in the storage 210.

12 is a flowchart illustrating a process of processing data using a network interface device according to some embodiments.

In step S1210, when the network interface unit 220 of the network interface device 200 receives the data, the network interface device 200 may determine a processing method of the received data. When the determined processing method is a self-processing method, the network interface device 200 may transmit the received data to the specific purpose-oriented integrated circuit 530.

In step S1230, the specific purpose-oriented integrated circuit 530 may classify the received data by type by calling a predetermined function with respect to the received data. For example, the specific purpose-oriented integrated circuit 530 may divide the received data into header data, individual transaction data, and other transaction data.

Thereafter, in step S1240, the specific purpose-oriented integrated circuit 530 stores the header value and classifies change information generated in the process of completing the proof of work, and processes data corresponding to the changed information. Can.

Thereafter, in step S1250, the specific use-oriented integrated circuit 530 may store the result of data processing performed in step S1240 in the storage 210. In addition, the specific use-oriented integrated circuit 530 may load the processed data into memory. In step S1260, the specific use-oriented integrated circuit 530 may generate metadata for a data processing operation that processes the received data and stores it in the storage 210. Thereafter, in step S1270, the generated meta data may be loaded into the memory 540.

Thereafter, when the data stored in the storage 210 is required in the process of performing the process, the central processing unit 530 may read the metadata loaded in the memory 540 in step S1280. have. Thereafter, in step S1290, the central processing unit 530 may acquire data stored from the storage 210 using the acquired meta data.

13 is a conceptual diagram illustrating data classified according to some embodiments.

The distributed ledger management system according to some embodiments may include header data 1300, individual transaction data 1310, and other transaction data 1320 when configuring node data to be transmitted to the node. Node data can be configured.

The header data 1310 may include information that the node that has received the node data can determine that the received data is node data. For example, the computing device constituting the node that has received the data determines whether the received data is the node data of the distributed ledger management system based on the information about the protocol included in the header data 1300 of the received data. , The data processing method may be determined according to the determination result.

The individual transaction data 1310 may include a portion corresponding to the change information 1311 regarding the portion where the change occurs in the distributed ledger management system by the transaction. The network interface device 200 receiving the node data may store information corresponding to the change information 1311 among the individual transaction data after processing the data in the storage 210.

As illustrated in FIG. 13, the capacity of each data in the configured data is the largest amount of other transaction data 1320, and the individual amount of transaction data 1310 is the next. The header data 1300 has the smallest capacity in the data. Accordingly, according to some embodiments in which the network interface device directly stores other transaction data in storage, the time required for processing the data can be greatly reduced.

The methods according to the embodiments of the present invention described so far can be performed by executing a computer program embodied in computer readable code. The computer program may be transmitted from a first computing device to a second computing device through a network such as the Internet and installed in the second computing device, and thus used in the second computing device. The first computing device and the second computing device include both server devices, physical servers belonging to a server pool for cloud services, and fixed computing devices such as desktop PCs.

The computer program may be stored in a recording medium such as a DVD-ROM or flash memory device.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, a person skilled in the art to which the present invention pertains may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Can understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (23)

A substrate including a network interface unit receiving node data from an external network through an external communication port, a bus connection unit connected to a bus of a computing device, and a storage connection unit connected to storage;
A storage controller mounted on the substrate, connected to the storage through the storage connection, and controlling the storage; And
A use-oriented integrated circuit mounted on the substrate and processing data for a predetermined purpose,
The purpose-oriented integrated circuit,
The processing method for determining the subject to process the node data is determined according to whether the node data is data for the predetermined purpose,
When the determined processing method is a central processing method, the node data is processed by a central processing device connected to the bus of the computing device,
When the determined processing method is a self-processing method, the node data is processed by the purpose-oriented integrated circuit,
The node data processed by the central processing unit or by the purpose-oriented integrated circuit is stored in the storage,
Network interface card. According to claim 1,
The purpose-oriented integrated circuit,
Classifying header data from the node data, and determining the processing method using the divided header data,
Network interface card. According to claim 2,
The purpose-oriented integrated circuit,
When the header data calls a predetermined function, the processing method is determined by its own processing method.
Network interface card. According to claim 3,
The predetermined function,
Blockchain nodes contain kernel commands in the communication layer to process data,
Network interface card. According to claim 2,
The purpose-oriented integrated circuit,
Classifying individual transaction data and other transaction data from the node data, and storing the individual transaction data and other transaction data in the storage through the storage controller without going through the bus,
Network interface card. According to claim 1,
The network interface card,
Further comprising an integrated circuit for processing the blockchain data to decrypt the node data,
Network interface card. According to claim 1,
The network interface card,
Further comprising a key management module for providing a key for decrypting the received node data or encrypting the data to be transmitted,
Network interface card. The method of claim 7,
The key management module,
Including a hardware chip based on a Physically Unclonable Function,
Network interface card. The method of claim 8,
The purpose-oriented integrated circuit,
When the determined processing method is a self-processing method, a key is obtained from the hardware chip, and the node data is decrypted using the obtained key.
Network interface card. According to claim 1,
The purpose-oriented integrated circuit,
Generating metadata for the data processing task after completing the data processing task, and loading the generated metadata into the memory of the computing device through the bus;
Network interface card. The method of claim 10,
The metadata,
The location information of the data stored in the storage by the data processing operation and information about the changed data,
Network interface card. delete delete delete delete delete delete delete delete In the data processing method performed by the computing device,
Receiving data;
Classifying the received data into header data, individual transaction data, and other transaction data, and classifying the type of the data by calling a function included in the header data; And
Including the interrupt to the central processing unit of the computing device, storing the individual transaction data and the other transaction data in a storage location of a designated storage according to the distinguished type;
The storing step,
And processing data corresponding to the changed information among the individual transaction data using a purpose-oriented integrated circuit,
The purpose-oriented integrated circuit,
Determine a processing method for determining a subject to process the received data according to whether the received data is data for a predetermined purpose,
When the determined processing method is a central processing method, the received data is processed by a central processing device connected to the bus of the computing device,
When the determined processing method is a self-processing method, the received data is processed by the purpose-oriented integrated circuit,
The received data processed by the central processing unit or by the purpose-oriented integrated circuit is stored in the storage,
Data processing method. The method of claim 20,
The step of distinguishing,
The step of storing the header data and distinguishing information that is changed in the process of completing the proof of work,
The storing step,
The method further includes storing result data processed using the purpose-oriented integrated circuit among the individual transaction data, unchanged information and other transaction data among the individual transaction data,
Data processing method. The method of claim 21,
The processing step,
Obtaining a key for decrypting data from a hardware chip based on a physically unclonable function, and
And decoding data corresponding to the changed information based on the key.
Data processing method. The method of claim 22,
Generating metadata about a result of storing the individual transaction data and the other transaction data in the storage; And
Including; loading the metadata in the memory of the computing device;
Data processing method.

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