KR20220149231A - Distributed storage method of data and comuting device for performing the method - Google Patents

Abstract

The present invention relates to a data distributed storage method and a computing device for performing the same. According to one embodiment of the present invention, the data distributed storage method may include: a step of determining a network, which is composed of a plurality of nodes for distributing and storing data and is connected with the plurality of nodes by a blockchain method; a step of allocating a storage area corresponding to the network to a storage of each of the plurality of nodes; and a step of distributing and storing data in the storage area allocated to the storage of each of the plurality of nodes. The plurality of nodes participating in the network have access authority for the data stored in these storage areas. Accordingly, the present invention may reduce maintenance costs for a central server for storing and distributing data.

Description

DISTRIBUTED STORAGE METHOD OF DATA AND COMUTING DEVICE FOR PERFORMING THE METHOD

The present invention relates to a method for distributed storage of data and a computing device for performing the method.

In order to distribute and store data, a system for distributing and storing files in specific units in the storage devices or storage of nodes participating in the block chain is used.

In order to distribute and store data in the storage of nodes participating in the block chain, data is distributed and stored in the storage of the nodes using a protocol such as IPFS (InterPlanetary File System).

When data is distributed and stored using a network such as the existing IPFS, access rights to data cannot be set, so there is a problem that any computer or node can access distributed and stored data if only the hash value is known.

Therefore, in order to maintain the security of the distributed stored data and to allow only specific users to access it according to the data, there is a need for a storage distributed storage method with restrictions on data access and a data access method for each permission.

According to various embodiments disclosed in this document, data distributed storage for determining a network for distributed storage of data, allocating a storage area corresponding to the network to storage of nodes, and distributing and storing data in the allocated storage area provide a way

According to various embodiments disclosed in this document, since a plurality of nodes participating in the network have access rights to data stored in the storage area, access rights are set or restricted so that only specific nodes can access distributed stored data It provides a method for distributed storage of data.

According to various embodiments disclosed in this document, depending on the access level of the nodes or computers participating in the network, whether to allow access to a file with a high security level may be determined, thereby preventing data leakage and at the same time It provides a data distributed storage method that can reduce the cost of maintaining a central server for storing data by distributing data and reducing unnecessary resource waste by participating in idle resources in the network.

The method for distributed storage of data according to an embodiment includes the steps of determining a network composed of a plurality of nodes for distributed and storing data - The network is a plurality of nodes connected according to a block chain method, each of the plurality of nodes allocating a storage area corresponding to the network to the storage of the node, and distributing and storing data in the storage area allocated to the storage of each of the nodes - A plurality of nodes participating in the network are stored in the storage area Having access to data- can include.

The network may be divided into an upper network and a lower network, and nodes participating in the upper network may be able to access data distributed and stored in a storage area of the nodes of the lower network.

The network is divided into an upper network and a lower network, and the storage of nodes participating in the upper network includes a first storage area for storing data managed by the upper network and data managed by the lower network. A second storage area may be allocated for

When the network is divided into a plurality of detailed networks independent of each other, storage of nodes participating in any one of the plurality of detailed networks is managed by any one of the plurality of detailed networks. A storage area for storing data may be allocated, and a storage area for storing data managed by one detailed network and another detailed network among the plurality of detailed networks may not be allocated.

The distributing and storing of the data may include dividing the data according to a specific unit and storing the data in a storage area allocated to the storage of the nodes.

A method for distributed storage of data according to an embodiment includes receiving a request to store data managed by a network in which a node participates, and storing the data in a storage area corresponding to a network inside a storage according to the request. and, the storage area may be allocated differently according to a network in which the node participates.

The network may be divided into an upper network and a lower network, and nodes participating in the upper network may be able to access data distributed and stored in a storage area of the nodes of the lower network.

The network is divided into an upper network and a lower network, and the storage of nodes participating in the upper network includes a first storage area for storing data managed by the upper network and a first storage area for storing data managed by the lower network The second storage area may be allocated.

When the network is divided into a plurality of detailed networks independent of each other, storage of nodes participating in any one of the plurality of detailed networks is managed by any one of the plurality of detailed networks. A storage area for storing data may be allocated, and a storage area for storing data managed by one detailed network and another detailed network among the plurality of detailed networks may not be allocated.

The storing in the storage area may include dividing the data according to a specific unit and storing the data in a storage area allocated to the storage of the nodes.

A computing device for performing a method for distributed storage of data according to an embodiment includes a processor, wherein the processor determines a network composed of a plurality of nodes for distributed storage of data, and the network is configured in a block chain manner. Accordingly, a plurality of nodes are connected-, allocating a storage area corresponding to the network to the storage of each of the plurality of nodes, and distributing and storing data in the storage area allocated to the storage of each of the nodes-in the network A plurality of participating nodes may have access rights to data stored in the storage area.

The network may be divided into an upper network and a lower network, and the processor may allow nodes participating in the upper network to access data distributed and stored in a storage area of the nodes of the lower network.

The network is divided into an upper level network and a lower level network, and the processor stores a first storage area for storing data managed by the upper network and data managed by the lower network for storage of nodes participating in the upper network. The second storage area for storage may be allocated.

A computing device performing the method for distributed storage of data according to an embodiment includes a processor, wherein the processor receives a request to store data managed by a network in which a node participates, and stores the data in storage according to the request. may be stored in a storage area corresponding to a network of

The network may be divided into an upper network and a lower network, and the processor may allow nodes participating in the upper network to access data distributed and stored in a storage area of the nodes of the lower network.

The network is divided into an upper-level network and a lower-level network, and the processor includes a first storage area for storing data managed by the upper-level network and data managed by the lower-level network for storage of nodes participating in the upper network. It may be to allocate a second storage area for storing .

According to various embodiments disclosed in this document, in a network that distributes and stores data, data access is restricted as data is stored in different networks according to the data access rights of nodes or computers participating in the network, that is, Data can be distributed and stored so that access rights to data are set.

1 is a diagram illustrating an operation of a computing device performing a method for distributed storage of data according to an embodiment.
2 to 4 are diagrams illustrating a network divided into an upper network and a lower network according to an embodiment.
5 is a diagram illustrating a network divided into a plurality of independent detailed networks according to an embodiment.
6 is a diagram illustrating an operation of a computing device performing a method for distributed storage of data according to an embodiment.
7 is a diagram illustrating a storage area 230 and a data distributed storage process according to a network in which a node participates according to an embodiment.
8 is a flowchart of a data storage method according to an exemplary embodiment.
9 is a flowchart of a method for distributed storage of data according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

Terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are assigned the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In the description of the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

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

1 is a diagram illustrating an operation of a computing device 100 performing a method for distributed storage of data according to an embodiment. In FIG. 1 , each of the networks 110 - 1 to 110 -n may include a plurality of nodes 120 - 1 to 120 -n .

Referring to FIG. 1 , a computing device 100 according to an embodiment includes a processor, and the processor is a network 110 configured with a plurality of nodes 120-1 to 120-n for distributed storage of data. ) and - the network 110, a plurality of nodes are connected according to the block chain method -, a storage area corresponding to the network 110 in the storage of each of the plurality of nodes 120-1 to 120-n A plurality of nodes 120 - 1 to 120 - n participating in the network 110 allocating and distributing and storing data in the storage area allocated to the storage of each of the nodes for data stored in the storage area With access rights-, it can be one.

The computing device 100 may determine the network 110 for distributed storage of data, and distribute and store the data in the storage area allocated to the storage of each of the nodes. Since the plurality of nodes 120-1 to 120-n participating in the networks 110-1 to 110-n have access rights to data stored in the storage area, nodes not participating in the network are stored in the storage area. You cannot have access to the stored data. That is, the computing device 100, for the data distributed and stored in the storage area 130, nodes participating in the network have access rights, and nodes not participating in the network do not have access rights to distributed stored data. It is possible to provide a network with restrictions on access rights.

The computing device 100 may determine the network 110 including a plurality of nodes 120-1 to 120-n for distributed storage of data. In other words, the computing device 100 may determine which network among the various networks 110 - 1 to 110 - n to distribute and store data.

According to an embodiment, the computing device 100 may determine the networks 110-1 to 110-n for distributed storage of data and determine the network to which the node requested for distributed storage of data belongs. For example, as shown in FIG. 1 , when the node 120-1 belonging to the network 110-1 performs a request for distributed storage of data, the computing device 100 transmits the data to the network 110-1. can be determined as a network for distributed storage.

According to an embodiment, the computing device 100 may determine a network for distributed storage of data based on a request for distributed storage of data. For example, the computing device 100 may determine a network for distributed storage of data by identifying a security level of data to be distributed and stored, a network designated for distributed storage of data, and the like. In FIG. 1 , the computing device 100 may identify a network 110 - 1 designated to distribute and store data, or determine a network in which data is to be distributed and stored according to a security level of data for which data is to be distributed and stored. .

The computing device 100 may allocate the storage area 130 corresponding to the networks 110-1 to 110-n to the storage of each of the plurality of nodes 120-1 to 120-n. The storage area is allocated to the storage of each of the plurality of nodes corresponding to the network. A corresponding storage area may be allocated, and a storage area corresponding to the network 110 - n may be allocated to storage of a plurality of nodes 120 - n participating in the network 110 - n.

According to an embodiment, when a node participates in a plurality of networks redundantly, storage of the node may be allocated to a storage area corresponding to each network. For example, when a node participates in a network 110-2 different from the network 110-1, the storage area of the node corresponds to a storage area corresponding to the network 110-1 and another network 110-2. storage area may be allocated.

The computing device 100 may distribute and store data in a storage area allocated to storage of each of the nodes. As shown in FIG. 1 , the computing device 100 determines a network 110 - 1 for distributed storage of data, and allocates storage of a plurality of nodes 120 - 1 corresponding to the network 110 - 1 . Data can be distributed and stored in the storage area. The plurality of nodes 120 - 1 to 120 - n participating in the network may have access to data stored in the storage area. Only nodes participating in the network have access to data stored in the storage area of nodes participating in the network, and nodes not participating in the network do not have access to data stored in the storage area of nodes participating in the network. means that

As an example, in FIG. 1 , a plurality of nodes 120 - 1 participating in the network 110 - 1 correspond to the network 110 - 1 and the storage allocated to the storage of the plurality of nodes 120 - 1 . It has the right to access the data distributed and stored in the area. On the other hand, the plurality of nodes 120 - 2 to 120 - n participating in the other networks 110 - 2 to 110 - n corresponds to the network 110 - 1 and stores the storage of the plurality of nodes 120 - 1 . It does not have access rights to the data distributed and stored in the storage area allocated to Accordingly, the computing device 100 may restrict access rights to distributed stored data by allowing access rights to only specific nodes with respect to distributed stored data.

Referring to FIG. 1 , the computing device 100 according to an embodiment may divide data according to a specific unit and store it in the storage area 130 allocated to the storage of the nodes 120 . The computing device 100 may divide the storage-requested data into a specific unit, for example, a chunk unit, and distribute and store the data in the storage area 130 allocated to the storage of the nodes 120 .

The computing device 100 may record, as a hash, an index for finding data that is divided into a specific unit in the storage of a plurality of nodes, and is distributed and stored in a storage area distributed in an allocated storage area. For example, the computing device 100 may generate a hash of data based on a hash function, divide the data into specific units, and distribute and store the data in storage areas of a plurality of nodes. When a hash value corresponding to distributed stored data is input, the computing device 100 may restore distributed stored data by integrating the divided data stored in storage areas of a plurality of nodes. Whether the restored data is authentic or not can be determined by comparing the hash value with the Merkle Tree containing data information.

For example, when data is requested to be stored, the computing device 100 may divide the data into specific units (eg, chunk units). A hash value may be assigned to each data divided into a specific unit, and the computing device 100 may distribute and store the data divided into a specific unit in a storage area allocated to storage of a plurality of nodes. Data distributed and stored in the storage of a plurality of nodes may be restored using a Distributed Hash Table (DHT) that connects a hash value of data and data.

For example, the network is a Distributed File System that can distribute, store, and share data, and may be an InterPlanetary File System (IPFS) network that distributes and stores files in the storage of nodes in chunks.

2 to 4 are diagrams illustrating a network divided into an upper network and a lower network according to an embodiment.

FIG. 2 is a diagram illustrating a network divided into an upper network 110 - 2 and a lower network 110 - 1 according to an exemplary embodiment. The upper network 110 - 2 and the lower network 110 - 1 may be classified based on the inclusion relationship of the network or the inclusion relationship of nodes constituting the network. In FIG. 2 , the upper network 110 - 2 may be included in the lower network 110 - 1 . In terms of nodes participating in the network, nodes 120-2 participating in the upper network 110-2 may refer to overlapping participation in the upper network 110-2 and the lower network 110-1. can

Referring to FIG. 2 , the network according to an embodiment is divided into an upper network 110-2 and a lower network 110-1, and nodes 120-2 participating in the upper network 110-2 are Data distributed and stored in the storage area of the nodes 120-1 of the sub-network 110-1 may be accessible. In FIG. 2 , the nodes 120-2 participating in the upper network 110-2 may be able to access data distributed and stored in the storage area of the nodes 120-1 participating in the lower network 110-1. have. That is, the nodes 120 - 2 participating in the upper network 110 - 2 correspond to the storage of the nodes 120 - 1 participating in the lower network 110 - 1 in the lower network 110 - 1 . It is possible to access the data distributed and stored in the allocated storage area. On the other hand, the nodes 120 - 1 participating in the lower network 110 - 1 correspond to the storage of the nodes 120 - 2 participating in the upper network 110 - 2 in response to the upper network 110 - 2 . You cannot access distributed data stored in the allocated storage area.

The nodes 120-2 participating in the upper network 110-2 may access data stored in the storage area of the nodes 120-1 participating in the lower network 110-1, but the lower network ( The nodes 120-1 participating in 110-1) are stored in the storage area allocated to the storage of the nodes 120-2 participating in the upper network 110-2 corresponding to the upper network 110-2. Distributed stored data cannot be accessed. Accordingly, with respect to the nodes 120-1 participating in the lower network 110-1, the nodes 120-2 participating in the upper network 110-2 corresponding to the upper network 110-2 are Since access to data stored in the storage area allocated to storage is restricted, data access of specific nodes in a network for distributed storage of data is restricted.

Referring to FIG. 2 , the network according to an embodiment is divided into an upper network 110 - 2 and a lower network 110 - 1 , and nodes 120 - 2 participating in the upper network 110 - 2 . The storage of the first storage area 130-1 for storing data managed by the upper network 110-2 and the second storage area 130 for storing data managed by the lower network 110-1 -2) may be assigned.

The storage of the nodes 120 - 2 participating in the upper network 110 - 2 may be allocated a first storage area 130 - 1 for storing data managed by the upper network 110 - 2 . . The first storage area 130 - 1 may correspond to the storage area allocated to the storage of the nodes 120 - 2 participating in the upper network 110 - 2 corresponding to the upper network 110 - 2 , , the first storage area 130 - 1 has access to the nodes 120 - 2 participating in the upper network 110 - 2 .

In addition, the storage of the nodes 120 - 2 participating in the upper network 110 - 2 is to be allocated a second storage area 130 - 2 for storing data managed by the lower network 110 - 1 . can The second storage area 130 - 2 corresponds to the lower network 110 - 1 , and nodes 120 - 1 and 120 - 2 participating in the lower network 110 - 1 and the upper network 110 - 2 . may correspond to a storage area allocated to the storage of 2) You can have this access right.

Summarizing the above, the first storage area 130 - 1 corresponds to the upper network 110 - 2 , and is allocated to the storage of the nodes 120 - 2 participating in the upper network 110 - 2 . It may correspond to the storage area, and nodes 120 - 2 participating in the upper network 110 - 2 may access the first storage area 130 - 1 . However, the first storage area 130 - 1 is a storage area allocated to correspond to the upper network 110 - 2 , and nodes 120 - 1 participating in the lower network 110 - 1 are the first storage areas. The data stored in (130-1) cannot be accessed.

On the other hand, the second storage area corresponds to the lower network 110 - 1 and is stored in the storage of the nodes 120 - 1 and 120 - 2 participating in the lower network 110 - 1 and the upper network 110 - 2 . It may correspond to the allocated storage area, and not only the nodes 120-1 participating in the lower network 110-1, but also the nodes 120-2 participating in the upper network 110-2 can access it. can Accordingly, the nodes 120 - 2 participating in the upper network 110 - 2 can access data distributed and stored in the storage area of the lower network 110 - 1 .

As an example, the computing device 100 includes nodes 210 - 2 belonging to the upper network 110 - 2 when the network composed of a plurality of nodes for distributed storage of data is the lower network 110 - 1 . A second storage area 130 - 2 for storing data managed by the lower network 110 - 1 may be allocated to the storage of the nodes 120 - 1 belonging to the lower network 110 - 1 , and the data may be stored in the second storage area 130 - 2 allocated to the storage of the nodes 120 - 1 and 2 of the upper network 110 - 2 and the lower network 110 - 1 .

For example, when the network including a plurality of nodes for distributing and storing data is the upper network 110 - 2 , the computing device 100 connects to the nodes 210 - 2 belonging to the upper network 110 - 2 . A first storage area 130-1 for storing data managed by the upper network 110-1 may be allocated to the storage of the nodes 120-2 to which it belongs, and the data is stored in the upper network 110-2. may be stored in the first storage area 130-1 allocated to the storage of the nodes 120-2 of .

Referring to FIG. 2 , the storage of the nodes 120 - 2 participating in the upper network 110 - 2 is for storing data managed by the upper network 110 - 2 , that is, the upper network 110 - 2 . ) corresponding to the first storage area 130-1, which is a storage area allocated to the storage of the nodes 120-2 participating in the upper network 110-2, and the lower network 110-1. Allocated to the storage of the nodes 120-1 and 120-2 participating in the lower network 110-1 and the upper network 110-2 for storing data, that is, corresponding to the lower network 110-1. A second storage area 130 - 2 that is a storage area to be used may be allocated.

Referring to FIG. 2 , the computing device 100 determines a network composed of a plurality of nodes for distributed storage of data. As a result, when the network for distributed storage of data corresponds to the lower level network 110 - 1 , the lower level The second storage area 130-2 allocated to the storage of the nodes 120-1 participating in the lower network 110-1 corresponding to the network 110-1 and participating in the upper network 110-2 Data may be distributed and stored in the second storage area 130 - 2 allocated to store data managed by the lower network 110 - 1 in the storage of the nodes 120 - 2 . The second storage area 130-2 is a storage area accessible to both the lower network 110-1 and the upper network 110-2, and is a storage area that participates in the upper network 110-2 and the lower network 110-1. The nodes 120 - 1 and 120 - 2 may access data distributed and stored in the second storage area 130 - 2 .

Referring to FIG. 2 , the computing device 100 determines a network composed of a plurality of nodes for distributed storage of data. As a result, when the network for distributed storage of data corresponds to the upper network 110 - 2 , the upper level In the first storage area 130-1 allocated to the storage of the nodes 120-2 participating in the upper network 110-2 corresponding to the network 110-2, that is, in the upper network 110-2, Data may be distributed and stored in the first storage area 130 - 1 allocated to store managed data. The first storage area 130-1 is a storage area accessible only to the upper network 110-2, and the data stored in the first storage area 130-1 includes nodes participating in the upper network 110-2. The nodes 120-2 can access, but the nodes 120-1 participating in the sub-network 110-1 cannot access it.

According to an embodiment, the network 110 may be one in which a plurality of nodes 120 are connected according to a block chain method. A block chain method or a block chain network may mean forming a network in a data distribution processing technology for distributed storage of data, in which blocks for storing data are bundled in a chain form. The fact that the network 110 is connected to a plurality of nodes 120 according to the block chain method means that the network 110 forms a network that is tied in a chain form like a block chain, and the block for storing data is a chain network. It may mean that a plurality of nodes 120 form a chain-type network rather than forming a . Accordingly, as shown in FIGS. 2 to 4 , a plurality of nodes 120 belonging to each network 110 may be connected in a chain form to form a network.

3 is a diagram illustrating a network divided into an upper network 110 - 1 and a lower network 110 - 2 according to an embodiment. The inclusion relationship of the network for distinguishing the upper network 110-1 and the lower network 110-2 may be variously applied, and FIG. 3 shows an example of the lower network unlike FIG. 2 in which the upper network is included in the lower network. Reference numeral 110-2 denotes a network of a relationship included in the upper network 110-1.

The lower network 110-2 and the upper network 110-1 shown in FIG. 3 are described with reference to FIG. 2 for descriptions other than the inclusion relationship between the lower network 110-2 and the upper network 110-1. The description of the upper network and the lower network may be equally applied.

In FIG. 3 , nodes 120 - 1 participating in the upper network 110 - 1 can access data distributed and stored in the storage area of the nodes 120 - 2 of the lower network 110 - 2 . In addition, the storage of the nodes 120-1 participating in the upper network 110-1 includes a first storage area 130-1 for storing data managed by the upper network 110-1 and a lower network. A second storage area 130 - 2 for storing data managed at 110 - 2 may be allocated.

On the other hand, the nodes 120 - 2 participating in the lower network 110 - 2 cannot access data distributed and stored in the storage area of the nodes 120 - 1 of the upper network 110 - 1 . In addition, the storage of the nodes 120 - 2 participating in the lower network 110 - 2 is to be allocated a second storage area 130 - 2 for storing data managed by the lower network 110 - 2 . can

4 is a diagram illustrating a network divided into a lower network overlapping an upper network according to an embodiment.

In the network shown in FIG. 4 , the lower network 110-3 is the upper network 110-1 shown on the left and the upper network 110-2 shown on the right according to the relationship between the networks. -3) may overlap. A network according to an embodiment is divided into a plurality of upper networks 110-1 and 2 and a common sub-network 110-3, and nodes participating in the plurality of higher-level networks 110-1 and 2 are common sub-networks. It is possible to access data distributed and stored in the storage area of the nodes of (110-3). When the lower-level network 110-3 corresponds to a common lower-level network of a plurality of upper-level networks 110-1 and 110-2, each of the upper-level networks 110-1 and 110-2 is a lower-level network 110-3 It is possible to access data distributed and stored in the storage area of the nodes 120-3 of

The network 110 according to an embodiment is divided into a plurality of upper networks 110-1 and 2 and a common sub-network 110-3 according to the relationship of the networks, and each of the plurality of upper networks 110-1, As for the storage of nodes participating in 2), a storage area for storing data managed by each of a plurality of upper-level networks and a storage area for storing data managed by a common lower-level network may be allocated.

In the network divided into the plurality of upper networks 110-1 and 110-2 and the common sub-network 110-3, each of the plurality of upper networks 110-1 and 110-2 is a common sub-network 110 -3), but each of the plurality of upper networks 110-1 and 110-2 cannot access the storage area for storing data managed by other upper networks. For example, in FIG. 4 , the upper network 110 - 1 can access the storage area of the common lower network 110 - 3 , but corresponding to the upper network 110 - 2 of the other upper network 110 - 2 . The storage area allocated to save data cannot be accessed.

For example, the storage of the nodes 120-1 participating in the upper network 110-1 is stored in a storage area for storing data managed by the upper network 110-1 and the common sub-network 110-3. A storage area for storing managed data may be allocated, and the storage of nodes 120-2 participating in another upper network 110-2 is used to store data managed by the upper network 110-2. A storage area for storing data managed by the common sub-network 110-3 and a storage area for storing data managed by the common sub-network 110-3 may be allocated, and the storage of the nodes 120-3 participating in the common sub-network 110-3 is common. A storage area for storing data managed by the sub-network 110 - 3 may be allocated.

As an example, when the network for distributing and storing data is a common sub-network 110-3 of a plurality of higher-level networks 110 - 1 and 2 , the computing device 100 is a lower-order storage for each of the plurality of nodes. A storage area corresponding to the network 110 - 3 may be allocated, and data may be distributed and stored in the storage area allocated to the storage of each of the nodes.

Referring to FIG. 4 , according to the relationship between the upper network and the lower network, the network may be divided into a common upper network 110 - 3 of the lower networks 110 - 1 and 110 - 2 . The nodes 120-3 of the common upper network 110-3 can access the storage areas of the nodes of the lower networks 110-1 and 110-2, and vice versa, the lower-level networks 110-1 and 110-2. Nodes 120 - 1 and 120 - 2 participating in , cannot access the storage area of nodes 120 - 3 of the common upper network 110 - 3 .

For example, the storage of the nodes 120 - 3 participating in the common upper network 110 - 3 is a storage area for storing data managed by the common upper network 110 - 3 and the lower network 110 - 1 ) may be allocated a storage area for storing data managed by the sub-network 110-2 and a storage area for storing data managed by the sub-network 110-2, and each of the sub-networks 110-1 and 110-2, respectively, A storage area for storing data managed by a sub-network of

5 is a diagram illustrating a network divided into a plurality of independent detailed networks according to an embodiment.

Referring to FIG. 5 , when a network according to an embodiment is divided into a plurality of sub-networks independent of each other, storage of nodes participating in any one sub-network among the plurality of sub-networks is A storage area for storing data managed by one detailed network may be allocated, and a storage area for storing data managed by any one detailed network and another detailed network among a plurality of detailed networks may not be allocated. . That is, nodes participating in each of a plurality of independent detailed networks are allocated a storage area for storing data managed by the detailed network in which the node participates, but have a storage area for storing data managed by other detailed networks. Since it is not allocated, it can access the storage area managed by the detailed network in which the node participates, but cannot access the storage area managed by other detailed networks.

In FIG. 5 , a storage area for storing data managed by the detailed network 110-4 is allocated to the storage of the nodes 120-4 participating in the detailed network 110-4, and another detailed network 110 The storage area for storing the data managed in -5) is not allocated. Similarly, a storage area for storing data managed by the detailed network 110-5 is allocated to the storage of the nodes 120-5 participating in the detailed network 110-5, and another detailed network 110-4 ), the storage area for storing the managed data is not allocated. As a result, the nodes 120 - 4 participating in the detailed network 110 - 4 cannot access the storage area for storing data managed by the other detailed network 110 - 5 , and cannot access the other detailed network 110 - 5) The participating nodes 120 - 5 cannot access the storage area for storing data managed by the detailed network 110 - 4 .

6 is a diagram illustrating an operation of a computing device 200 performing a method for distributed storage of data according to an embodiment. The computing device 100 described with reference to FIGS. 1 to 5 relates to a device for performing a method for distributed storage of data in terms of a network, and the computing device 200 described in FIGS. 6 and 7 below is distributed storage of data in terms of nodes. It relates to an apparatus for performing the method.

The description of the network and node of the computing device 200 described below with reference to FIGS. 6 to 7 may be equally applied to the description of the network and node of the computing device 100 of FIGS. 1 to 5 . Accordingly, even if omitted from the description of the computing device 200 of FIGS. 6 to 7 , the contents described in the computing device 100 of FIGS. 1 to 5 are not included in the computing device 200 of FIGS. 6 to 7 . The same can be applied to the description.

Referring to FIG. 6 , the computing device 200 according to an embodiment includes a processor, the processor receives a request to store data managed by the network 210 in which the node participates, and stores the data according to the request. The storage area 230 may be stored in the storage area 230 corresponding to the internal network, and the storage area 230 may be allocated differently depending on the network 210 in which the node participates. That is, the computing device 200 may receive the data storage request and store the data in a storage area corresponding to the network according to the data storage request.

In FIG. 6 , the storage area 230 may be allocated differently according to a network in which a node participates. For example, the first storage areas 230-1 to n-th storage areas 230-n shown in FIG. 6 are allocated according to the networks 210-1 to 210-n in which the node participates. In other words, the storage area 230 of the node's storage indicates that the first storage areas 230-1 to n-th storage areas 230-n corresponding to the networks 210-1 to 210-n are allocated. , a node may mean participating in the networks 210 - 1 to 210 - n , and the computing device 200 may receive a data storage request from the networks 210 - 1 to 210 - n.

The computing device 200 may receive a request to store data managed by a network in which the node participates, and store the data in a storage area corresponding to the network inside the storage according to the request. For example, in FIG. 6 , the first storage areas 210 - 1 to nth storage areas 210 - n correspond to the networks 210 - 1 to 210 - n, respectively. The computing device 200 may receive a data storage request from the network 210-1 and store data in the first storage area 230-1, which is a storage area corresponding to the network 210-1. When the computing device 200 receives a data storage request from the network 210 - 2 , it may store data in the second storage area 230 - 2 that is a storage area corresponding to the network 210 - 2 . That is, the computing device 200 may receive a data storage request from the network 230 in which the node participates, and store the data in a storage area of the storage corresponding to the network requesting the data storage.

Referring to FIG. 6 , a node according to an embodiment may have access to a storage area corresponding to a network in which the node participates.

7 is a diagram illustrating a storage area 230 and a data distributed storage process according to a network in which a node participates according to an embodiment. For example, in FIG. 7 , the network 210 - 1 is a lower level network, the network 210 - 2 is an upper network, and the first storage area 230 - 1 stores data managed by the upper network 210 - 2 . The storage area allocated to the storage of the node for this purpose and the second storage area 230 - 2 may refer to a storage area allocated to the storage of the node to store data managed by the sub-network 210 - 1 .

Referring to FIG. 7 , the network according to an embodiment is divided into an upper network 210 - 2 and a lower network 210 - 1 , and nodes participating in the upper network 210 - 2 are the lower networks 210 - It may be possible to access data distributed and stored in the storage area of the nodes in 1). 7 (a) and (b) show a case in which a node participates in a higher-level network. As shown in (a), when a node participates in an upper-level network 210-2, the computing device 200 is a lower-level network. The data storage request may be received from the 210 - 1 , and the data may be stored in the second storage area 230 - 2 which is a storage area corresponding to a sub-network inside the storage of the node according to the request. In addition, as in (b), when the node participates in the upper network 210-2, the computing device 200 receives a data storage request from the upper network 210-2, and transmits the data according to the request to the node. Data may be stored in the first storage area 230-1, which is a storage area corresponding to the upper network 210-2 in the storage.

Summarizing the above, in the case of a node participating in the upper network 210 - 2 , when receiving a data storage request from the upper network 210 - 2 , the computing device 200 transmits the upper network 210 - 2 ), when storing data in the first storage area 230-1, which is a storage area corresponding to the sub-network, and receiving a data storage request from the sub-network 210-1, the computing device 200 corresponds to the sub-network. Data may be stored in the second storage area 230 - 2 . Accordingly, nodes participating in the upper network 210 - 2 can access data distributed and stored in the storage area of the nodes of the lower network 210 - 1 .

Referring to FIG. 7 , the network is divided into an upper network 210 - 2 and a lower network 210 - 1 , and storage of nodes participating in the upper network 210 - 2 is stored in the upper network 210 - 2 . A first storage area 230 - 1 for storing managed data and a second storage area 230 - 2 for storing data managed by the sub-network 210-1 may be allocated. In other words, the storage of nodes participating in the upper network 210 - 2 transfers data to the upper network 210 - 2 according to the data storage request received from the lower network 210 - 1 and the upper network 210 - 2 . ) may be allocated a first storage area 230 - 1 which is a space for storing data managed by ) and a second storage area 230 - 2 which is a space for storing data managed by the sub-network 210 - 1 . . The computing device 200 may receive a request to store data from the upper network 210 - 2 and the lower network 210 - 1 , and store the data in a storage area corresponding to each network.

7( c ) shows the case of a node participating in the sub-network 210-1, and unlike FIGS. 7 (a) and (b), storage of the node participating in the sub-network 210-1 is allocated only to the second storage area 230-2, which is a storage area for storing data managed by the sub-network 210-1. Accordingly, when the computing device 200 receives a data storage request from the sub-network 230-1, it stores data corresponding to the sub-network 210-1, in other words, managed by the sub-network 210-1. Data can be stored in the second storage area 230-2, which is a storage area for the data storage, but the data requested to be stored from the upper network 210-2 is not received from the upper network 210-2. There is no allocated space to store the .

That is, referring to FIG. 7 , in a node participating in the upper network 210-2, the computing device 200 receives a data storage request from the lower network 210-1 and the upper network 210-2, In the case of a node participating in the upper network 210-2 by storing data in the second storage area 230-2 and the first storage area 230-1, which are storage areas corresponding to each network, the lower network In contrast to being able to access data distributed and stored in the storage area of the nodes of the nodes 210-1, the computing device 200 in the node participating in the sub-network 210-1 receives the data received from the sub-network 210-1. Since data can be stored in the second storage area 230 - 2 , which is a storage area allocated to the storage of a node according to a data storage request, data distributed and stored in the storage area of the nodes of the upper network 210 - 2 is accessed. Can not.

When the network according to an embodiment is divided into a plurality of detailed networks independent of each other, the storage of nodes participating in any one of the plurality of detailed networks is stored in any one of the plurality of detailed networks. A storage area for storing managed data may be allocated, and a storage area for storing data managed by one detailed network and another detailed network among a plurality of detailed networks may not be allocated to storage.

As described in FIG. 5 , when the network 210 is divided into a plurality of detailed networks independent of each other, a storage area for storing data managed by the detailed network in which the node participates is allocated to the storage of the node, and the computing device 200 may receive a data storage request from a detailed network in which the node participates, and store the data in a storage area corresponding to the detailed network inside the storage according to the request. The computing device 200 does not receive the data storage request from the detailed network in which the node does not participate, and even if it receives the data storage request from the detailed network in which the node does not participate, the storage corresponding to the detailed network in which the node does not participate. Since the area is not allocated inside the node's storage, data cannot be stored.

That is, when divided into a plurality of detailed networks independent of each other, the computing device 200 receives a data storage request from the detailed network to which the node belongs, and stores allocated corresponding to the detailed network to which the node belongs in the storage of the node. Data can be stored in an area, and data cannot be stored by receiving a request to store data from a detailed network to which the node does not belong. In addition, each node has access only to the storage area allocated to the storage of nodes participating in the detailed network corresponding to the detailed network to which the node belongs, and has access to the storage of other detailed networks in response to other detailed networks to which the node does not belong. You do not have access to the allocated storage area.

The distributed data storage method described with reference to FIGS. 8 to 9 below may be performed by the computing devices 100 and 200 performing the distributed data storage method described with reference to FIGS. 1 to 7 . Accordingly, even if the following description of the distributed data storage method is omitted, the description of the computing devices 100 and 200 performing the distributed data storage method of FIGS. 1 to 7 is a description of the distributed data storage method. The same can be applied to

8 is a flowchart of a data storage method according to an exemplary embodiment.

Referring to FIG. 8 , the method for distributed storage of data according to an embodiment includes determining a network composed of a plurality of nodes for distributed storage of data - the network is connected to a plurality of nodes according to a block chain method -, a plurality of allocating a storage area corresponding to the network to the storage of each of the nodes, distributing and storing data in the storage area allocated to the storage of each of the nodes - A plurality of nodes participating in the network are stored in the storage area Having access to data- can include.

Referring to FIG. 8 , in step S110 , the computing device 100 may determine a network including a plurality of nodes for distributed storage of data. In order to determine a network for distributed storage of data, the computing device 100 may identify a network in which a node requesting data storage participates, or a network designated to store data included in the data storage request, and the like.

A network may be a plurality of nodes connected according to a block chain method.

Next, in step S120 , the computing device 100 may allocate a storage area corresponding to the network to the storage of each of the plurality of nodes. The computing device 100 may allocate a storage area differently according to a network in which each of the plurality of nodes participate.

Next, in step S130 , the computing device 100 may distribute and store data in a storage area allocated to storage of each of the nodes. The computing device 100 distributes and stores data in the storage area allocated to the storage of each of the nodes, so that a plurality of nodes participating in the network have access to data stored in the storage area allocated to the network, but Nodes that do not participate in the network do not have access to data stored in a storage area allocated to the network. Therefore, the data stored according to the data distributed storage method has limited and restricted access rights, and the security of the data can be maintained.

9 is a flowchart of a method for distributed storage of data according to an embodiment.

Referring to FIG. 9 , a method for distributed storage of data according to an embodiment includes receiving a storage request for data managed by a network in which a node participates, and storing data in a storage area corresponding to a network inside the storage according to the request. step, and the storage area may be allocated differently depending on the network in which the node participates.

Referring to FIG. 9 , in step S210, the computing device 200 receives a request to store data managed by a network in which the node participates, and then in step S220, the computing device 200 stores the data according to the request. can be stored in a storage area corresponding to the network of The storage area is allocated differently depending on the network in which the node participates, and the node can have access to the storage area allocated to store data managed by the network in which the node participates in the storage of a plurality of nodes participating in the network. have. That is, with respect to data distributed and stored in a storage area corresponding to the network according to the distributed data storage method, nodes participating in the network have access rights, but nodes not participating in the network do not have access rights.

Meanwhile, the method according to the present invention is written as a program that can be executed on a computer and can be implemented in various recording media such as magnetic storage media, optical reading media, and digital storage media.

Implementations of the various techniques described herein may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or combinations thereof. Implementations may be implemented for processing by, or for controlling the operation of, a data processing device, eg, a programmable processor, computer, or number of computers, a computer program product, ie an information carrier, eg, a machine readable storage It may be embodied as a computer program tangibly embodied in an apparatus (computer readable medium) or a radio signal. A computer program, such as the computer program(s) described above, may be written in any form of programming language, including compiled or interpreted languages, and may be written as a standalone program or in a module, component, subroutine, or computing environment. may be deployed in any form, including as other units suitable for use in A computer program may be deployed to be processed on one computer or multiple computers at one site or to be distributed across multiple sites and interconnected by a communications network.

Processors suitable for processing a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from either read-only memory or random access memory or both. Elements of a computer may include at least one processor that executes instructions and one or more memory devices that store instructions and data. In general, a computer may include one or more mass storage devices for storing data, for example magnetic, magneto-optical disks, or optical disks, receiving data from, sending data to, or both. may be combined to become Information carriers suitable for embodying computer program instructions and data are, for example, semiconductor memory devices, for example, magnetic media such as hard disks, floppy disks and magnetic tapes, Compact Disk Read Only Memory (CD-ROM). ), an optical recording medium such as a DVD (Digital Video Disk), a magneto-optical medium such as a floppy disk, a ROM (Read Only Memory), a RAM , Random Access Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), and the like. Processors and memories may be supplemented by, or included in, special purpose logic circuitry.

In addition, the computer-readable medium may be any available medium that can be accessed by a computer, and may include both computer storage media and transmission media.

While this specification contains numerous specific implementation details, these should not be construed as limitations on the scope of any invention or claim, but rather as descriptions of features that may be specific to particular embodiments of particular inventions. should be understood Certain features that are described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Furthermore, although features operate in a particular combination and may be initially depicted as claimed as such, one or more features from a claimed combination may in some cases be excluded from the combination, the claimed combination being a sub-combination. or a variant of a sub-combination.

Likewise, although acts are depicted in the figures in a particular order, it should not be understood that such acts must be performed in the specific order or sequential order shown or that all depicted acts must be performed in order to obtain desirable results. In certain cases, multitasking and parallel processing may be advantageous. Further, the separation of the various device components of the above-described embodiments should not be construed as requiring such separation in all embodiments, and the program components and devices described may generally be integrated together into a single software product or packaged into multiple software products. You have to understand that you can.

On the other hand, the embodiments of the present invention disclosed in the present specification and drawings are merely presented as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

100, 200: computing device
110, 210: network
120: multiple nodes
130, 230: storage area
130-1, 230-1: first storage area
130-2, 230-2: second storage area

Claims (16)

In the data distributed storage method,
determining a network composed of a plurality of nodes for distributed storage of data, wherein the network is connected to a plurality of nodes according to a block chain method;
allocating a storage area corresponding to the network to storage of each of the plurality of nodes;
Distributing and storing data in a storage area allocated to storage of each of the nodes - A plurality of nodes participating in the network have access to data stored in the storage area -
Containing, a data distributed storage method. According to claim 1,
The network is divided into an upper network and a lower network,
A method for distributed storage of data in which nodes participating in the upper network can access data distributed and stored in storage areas of nodes of the lower network. According to claim 1,
The network is divided into an upper network and a lower network,
In the storage of nodes participating in the upper network, a first storage area for storing data managed by the upper network and a second storage area for storing data managed by the lower level network are allocated. . According to claim 1,
When the network is divided into a plurality of detailed networks independent of each other, storage of nodes participating in any one of the plurality of detailed networks is managed by any one of the plurality of detailed networks. A data distributed storage method in which a storage area for storing data is allocated, and a storage area for storing data managed by one detailed network and another detailed network among the plurality of detailed networks is not allocated. According to claim 1,
Distributing and storing the data includes:
The data distributed storage method of dividing the data according to a specific unit and storing it in a storage area allocated to the storage of the nodes. In the data distributed storage method,
receiving a request to store data managed by a network in which the node participates;
storing the data in a storage area corresponding to a network inside the storage according to the request;
including,
The storage area is allocated differently according to a network in which the node participates. 7. The method of claim 6,
The network is divided into an upper network and a lower network,
Nodes participating in the upper-level network can access data distributed and stored in the storage area of the nodes of the lower-level network. 7. The method of claim 6,
The network is divided into an upper network and a lower network,
The storage of the nodes participating in the upper network includes a first storage area for storing data managed by the upper level network and a second storage area for storing data managed by the lower level network. 7. The method of claim 6,
When the network is divided into a plurality of detailed networks independent of each other, storage of nodes participating in any one of the plurality of detailed networks is managed by any one of the plurality of detailed networks. A method for distributed storage of data, wherein a storage area for storing data is allocated, and a storage area for storing data managed by one detailed network and another detailed network among the plurality of detailed networks is not allocated. 7. The method of claim 6,
The storing in the storage area comprises dividing the data according to a specific unit and storing the data in a storage area allocated to the storage of the nodes. A computing device for performing a data distributed storage method, comprising:
including a processor;
The processor is
Determining a network composed of a plurality of nodes for distributed storage of data - the network is connected to a plurality of nodes according to a block chain method - and a storage area corresponding to the network in the storage of each of the plurality of nodes allocating and distributing and storing data in a storage area allocated to the storage of each of the nodes, wherein a plurality of nodes participating in the network have access rights to the data stored in the storage area-, a computing device. 12. The method of claim 11,
The network is divided into an upper network and a lower network,
The processor is
The nodes participating in the upper-level network are capable of accessing data distributed and stored in the storage area of the nodes of the lower-level network. 12. The method of claim 11,
The network is divided into an upper network and a lower network,
The processor is
The storage of the nodes participating in the upper network is such that a first storage area for storing data managed by the upper network and a second storage area for storing data managed by the lower network are allocated. A computing device for performing a data distributed storage method, comprising:
including a processor;
The processor is
receiving a request to store data managed by a network in which the node participates, and storing the data in a storage area corresponding to the network inside the storage according to the request;
The storage area is allocated differently according to a network in which the node participates. 15. The method of claim 14,
The network is divided into an upper network and a lower network,
The processor is
The nodes participating in the upper-level network are capable of accessing data distributed and stored in the storage area of the nodes of the lower-level network. 15. The method of claim 14,
The network is divided into an upper network and a lower network,
The processor is
The storage of nodes participating in the upper network is such that a first storage area for storing data managed by the upper network and a second storage area for storing data managed by the lower network are allocated to storage. Device.

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