WO2013100551A1

WO2013100551A1 - P2p-based update client, server device, system, and method

Info

Publication number: WO2013100551A1
Application number: PCT/KR2012/011453
Authority: WO
Inventors: 김민석; 백석준
Original assignee: 주식회사 안랩
Priority date: 2011-12-29
Filing date: 2012-12-26
Publication date: 2013-07-04
Also published as: KR20130077357A; KR101436406B1

Abstract

A peer-to-peer (P2P)-based update server device comprises: a meta data information analysis unit which analyzes information of a meta data file transmitted from each client through a network using a P2P-based protocol, and groups clients having the same meta data file information into one group; a sub-group management unit which groups clients, which are grouped into the group, into one or more sub-groups according to additional information of each client; and a control unit which manages information on the generated group and sub-group, and transmits information on the sub-group to a corresponding client.

Description

P2P based update client, server device, system and method

The present invention relates to a peer-to-peer (P2P) -based file transfer method, in particular in the P2P-based file update, a metadata file having information about the file to be updated In order to obtain the group information of clients for file update from the client having a meta data file, additional information such as the metadata file and country and company information of each client when the server is connected The server provides P2P-based files between the clients in the subgroup newly configured according to the characteristics of the client by providing the client with the information of the subgroup reconfigured small according to additional information among the clients in the group having the same metadata file. By allowing updates to be performed, network connectivity between different countries or Updates other P2P-based updates that slow and can prevent the occurrence of security problems the client, the server device, the present invention relates to systems and methods.

In general, P2P technology is a concept of gathering a large number of users into a network to share bandwidth and process information together within the network. Unlike general client-server mode, each client terminal functions as a client and a server, and is distributed. It is an efficient data transmission approach that allows users to acquire content efficiently and reliably in a collaborative environment.

In other words, P2P refers to a network communication model in which peer nodes of the same layer, unlike client-server models, transmit and receive files while simultaneously serving as clients and servers.

Among the above and P2P technology, P2P technology which is widely used in recent years is, for example, a torrent. Torrent applies the concept of grid storage to an open environment such as a P2P network, while data is exchanged on a per-file basis in a conventional P2P network. ), Data is exchanged in units of divided blocks, and the file is reconstructed into a plurality of blocks.

In such a torrent, a plurality of host computers holding a desired file are searched on the Internet, and the plurality of searched host computers simultaneously request different blocks, thereby speeding up file transfer in a P2P network environment.

Meanwhile, the torrent as described above may be used as an update technology of various programs including an anti virus program as a data transmission and download technology using the Internet.

At this time, in the torrent protocol-based distributed file update, a metadata file called a seed file having information on an update target file must exist. The seed file includes hash value information for each block divided into predetermined sizes by viewing the update target files as one large file.

Each client connects to the tracker server when the program runs to obtain a list of clients with the same seed file.The clients with the same seed file are swarmed to upload data. Or download.

However, in the above torrent base, if the same seed file has the same seed, it is classified as the same swarm, and the update file is downloaded between the clients. In this case, clients in the same swarm belong to different countries or to different companies with security settings. If you do, you will encounter various problems with file updates between clients.

That is, for example, when a client in a swarm belongs to a different country, if a network connection between countries is impossible or undesired, file upload or download itself is impossible, or the speed of file upload or download is reduced. In addition, between clients belonging to different companies, or between clients and individual clients within a company, network connection itself is not possible due to security issues set for each company, or upload or download of a file is restricted due to restrictions on file upload or download. There is a difficult problem.

Therefore, in the P2P-based file update, the present invention provides a group of clients for file update in a client having a meta data file having information on an update target file. In order to obtain the information, additional information such as metadata file and country and company information of each client is provided when connecting to the server, and the server provides a small amount according to additional information among clients in the group having the same metadata file. By providing the information of the reconfigured subgroup to the corresponding client, P2P-based file update is performed between the clients in the newly configured subgroup according to the characteristics of each client, and the update rate according to the network connection between different countries or companies Can prevent degradation and security problems To provide a P2P-based update client, server, device, system and method.

The present invention described above is a P2P-based update server device, which analyzes information of metadata files transmitted from each client through a network using a peer-to-peer (P2P) -based protocol, and includes clients having the same metadata file information. A metadata information analyzer configured as a group, a subgroup manager configured to configure one or more subgroups according to additional information of each client, and the information about the generated group and subgroups And a controller for transmitting the subgroup information to the corresponding client.

The subgroup manager may compare the additional information of each client with respect to the clients in the group, classify the clients having information that matches each other in the additional information, and configure the subgroup.

The additional information may include at least one country or company information to which the client belongs, or information indicating whether the client is an individual user or a company user.

The subgroup manager may configure the subgroup with clients whose country information or company information match among the clients in the group according to the comparison of the additional information.

The subgroup managing unit may be configured to block network access from clients of different subgroups.

The controller may set a file sharing method between subgroups for one or more subgroups generated in the same group and provide the file sharing method to a corresponding client.

The file sharing method may be an upload or download method of a file defined between clients belonging to different subgroups.

In addition, the P2P-based protocol is characterized in that the torrent protocol.

The meta data file may be a seed file having information on an update target file.

The information of the metadata file may be a hash value recorded in the metadata file.

The present invention also provides a P2P-based update client device, comprising: a metadata file information generator for generating information of a metadata file, an additional information generator for generating additional information, and a meta data through a network using a P2P-based protocol; It transmits the information of the data file and the additional information to the server, receives information of one or more subgroups classified according to the additional information among the clients in the group having the same metadata file to perform data transmission with the clients in the subgroup. It includes a control unit to perform.

The subgroup may be configured to block network access from clients of different subgroups.

In addition, the present invention is a P2P-based update method, the step of receiving information and additional information of the metadata file from each of a plurality of clients using the P2P-based protocol, and the same metadata by analyzing the metadata file transmitted from each client Configuring the clients having the information of the file into one group, configuring the grouped clients into one or more subgroups according to the additional information of each client, and Managing information and transmitting the subgroup information to the corresponding client.

The configuring of the subgroup may include comparing additional information of each client with respect to the clients in the group, classifying the clients having information that matches each other in the additional information, and configuring the subgroup. Characterized in that it comprises a.

In the configuring of the subgroup, the subgroup may be configured to compare the additional information to configure the clients having the same country information or company information among the clients in the group.

The method may further include setting a file sharing method between subgroups for a plurality of subgroups generated in the same group, and transmitting information on the file sharing method to the corresponding client when the subgroup is transmitted. It is characterized by.

The present invention also provides a P2P based update method, comprising: generating information and additional information of a metadata file, transmitting information and additional information of the generated metadata file to a server using a P2P based protocol; Receiving information of one or more subgroups classified according to the additional information among the clients in the group having information of the same metadata file from the server, and performing data transmission / reception with the clients in the subgroups. do.

In addition, the present invention is a P2P-based update system, a plurality of clients for generating information and additional information of the metadata file when executing the client program for data transmission, and transmitting through the network using a P2P-based protocol, each client After analyzing the information of the metadata file transmitted from the client, the clients having the same metadata file information are configured into one group, and the clients of the group are configured into one or more subgroups according to the additional information of each client. And a server transmitting the subgroup information to the corresponding client through the P2P based protocol.

According to the present invention, in a P2P-based file update, group information of clients for file update in a client having a metadata file having information about an update target file. When acquiring the server, additional information such as metadata file and country and company information of each client is provided when connecting to the server, and the server is reconfigured in small scale according to additional information among clients in the group having the same metadata file. By providing the information of the subgroup to the client so that P2P-based file update is performed between the clients in the subgroup newly configured according to the characteristics of each client, the update speed of the network connection between different countries or companies is reduced. The benefit of preventing security issues have.

In addition, clients with the same metadata file can be further subdivided into subgroups of clients belonging to the same country or clients belonging to the same company to prevent network connectivity and security problems, thereby improving the accuracy and speed of file updating. There is an advantage to improve.

1 is a network diagram of a P2P based update system according to an embodiment of the present invention;

2 is a detailed block diagram of a client of a P2P based update system according to an embodiment of the present invention;

3 is a detailed block diagram of a tracker server of a P2P based update system according to an embodiment of the present invention;

4 is an exemplary sub swarm configured for each country according to an embodiment of the present invention;

5 is a flowchart illustrating a sub swarm configuration process for P2P based update in a tracker server according to an exemplary embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the operating principle of the present invention. In the following description of the present invention, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

1 illustrates a network configuration of a P2P based update system according to an embodiment of the present invention. In the following description, an operation related to P2P-based updating in a torrent protocol, which is one of the P2P-based protocols, is described as an example, but the same may be applied to other P2P-based protocols.

The client 100 may be a terminal device, such as a PC of each user, to which a torrent client program is mounted to enable torrent-based distributed file updating. When the client 100 executes the torrent client program, the client 100 accesses the tracker server 200 and transmits information of the metadata file, that is, information of a seed file, for example. Along with the information, additional information necessary for configuring a sub swarm is transmitted. At this time, the information of the seed file may be, for example, a hash value of the seed file, and the like, and the additional information may be, for example, the client 100 using the country code, company name, product name, company and personal of the country of study. Information such as whether or not.

In addition, after the client 100 transmits the seed file information and additional information to the tracker server 200 as described above, the client 100 receives the subgroup to which it belongs, that is, the sub swarm information from the tracker server 200. Distributed file update is performed by uploading or downloading files with other clients in the network.

The tracker server 200 manages the information about the clients for the split file update and the contents information of each client so that the client having the same seed file information when the client accesses the same swarm for the distributed file update ) And provide the client with the contents of the swarm, that is, updater files.

In addition, the tracker server 200 receives the additional information reflecting the characteristics of each client 100 required for the sub swarm configuration along with the information of the seed file when the client 100 is connected for the sub swarm configuration according to the present invention. . In this case, the additional information may be, for example, information such as a country code, a company name, a product name, a company and a personal use of the country to which the client 100 belongs.

That is, the tracker server 200 analyzes the information of the seed file transmitted from the client 100 to classify a client having the same seed file information as a swarm, and then again each client for a plurality of clients classified as swarms. By using the additional information transmitted from the (100) is composed of a plurality of sub-swarms that match the client characteristics. At this time, in the configuration of the sub swarm, for example, a country or a company among the clients included in the same swarm may configure the same client as the sub swarm, or only individual users in the same country may be configured as the sub swarm.

The tracker server 200 transmits the sub swarm information configured as described above to each client 100 so as to solve the problem caused by providing the swarm information without considering the network environment of the conventional country or company. do.

For example, if a client in a swarm is in a different country, or if the network connection between countries is not possible or not desired, the file upload or download itself may not be possible, or the file upload or download may be slow, or different companies Resolves the problem that the network connection itself is impossible due to security issues set by each company or between clients belonging to the company or between clients and individual clients within the company, or uploading or downloading files is difficult due to restrictions on file upload or download. To be possible.

2 illustrates a detailed block configuration of the client 100 of the P2P based update system according to an embodiment of the present invention.

The seed file information generation unit 102 generates seed file information to be transmitted to the tracker server 200, that is, information such as a hash value recorded in the seed file. In the torrent-based distributed file update, a metadata file that contains information about an update target file must exist. This metadata file is called a seed file. Such a seed file includes hash value information for each block divided into a predetermined size by viewing the update target files as one large file.

The additional information generating unit 104 generates additional information necessary for the tracker server 200 to configure the clients having the same seed file information again as small sub swarms. In this case, the additional information may be, for example, information such as a country code, a company name, a product name, a company and a personal use of the country to which the client 100 belongs.

The communication unit 108 transmits and receives data for updating a torrent-based distributed file with the tracker server 200 or another client through a network such as the Internet. Such a communication unit 108 may support a P2P communication protocol including, for example, a torrent protocol.

The controller 106 controls the overall operation of the torrent based distributed file update in the client 100. That is, the controller 106 controls the seed file information generator 102 or the additional information generator 104 to generate seed file information and additional information and transmits the seed file information and additional information to the tracker server 200, and from the tracker server 200. It receives the swarm information and sub swarm information composed of clients having the same seed file information, and transmits and receives an update file with other clients in the sub swarm.

3 shows a detailed block diagram of the tracker server 200 of the P2P based update system according to the embodiment of the present invention.

The communication unit 202 transmits and receives data for updating a torrent-based distributed file with a plurality of clients 100 through a network such as the Internet. Such a communication unit 202 may support a P2P communication protocol including, for example, a torrent protocol.

The seed information analyzer 208 analyzes the seed file information transmitted from the client 100, classifies the client 100 having the same seed file information, and configures one group, that is, a swarm. The swarm information configured as described above is stored and managed in the swarm information DB (database) 214 in the storage unit 212.

The sub swarm management unit 210 configures a plurality of small sub swarms that meet the characteristics of the additional information for clients belonging to the same swarm using additional information transmitted together with seed file information from each client 100. At this time, in the configuration of the sub swarm, for example, a country or a company among the clients included in the same swarm may configure the same client as the sub swarm, or only individual users in the same country may be configured as the sub swarm. The sub swarm information configured as described above is stored and managed in the sub swarm information DB 216 in the storage unit 212.

The storage unit 212 includes a swarm information DB 214 for storing swarm information and a sub swarm information DB 216 for storing sub swarm information.

The controller 206 controls the overall operation of the tracker server 200 according to an operation program stored in the memory unit 204.

That is, the control unit 206 receives seed file information and additional information from each client 100 connected to the tracker server 200 through the communication unit 202, and thus, the seed information analyzer 208 and the sub swarm management unit 210, respectively. ), So that clients with the same seed file information are configured as one swarm, and additionally, the clients belonging to the same swarm again meet the characteristics of the additional information, that is, information identical to each other among the additional information. Clients with are divided into multiple sub swarms.

In addition, the control unit 206 transmits the newly configured sub swarm information to the clients 100 through the communication unit 202 to the clients within the swarm configured according to the seed file information through the sub swarm management unit 210. ) Can be used to perform distributed file updates within a sub swarm configured for each client's characteristics, such as the same country or company.

Accordingly, for example, a sub swarm configuration divided by country can be used to prevent data transmission degradation due to locality, and a sub swarm can be configured as a client in the same company network to block unnecessary network access. Problems that occurred in the swarm configuration can be solved.

In addition, the control unit 206 sets the data sharing method between the sub-swarms for the sub-swarms configured as described above, and transmits the set data sharing method information together with the sub-swarm information, so that each client 100 is required even between different sub-swarms In this case, the distributed file can be updated according to the data sharing method set in the tracker server 200.

That is, for example, in the case where the state A and the state B sub swarms are configured according to the country as shown in FIG. 4, the data sharing scheme may be set as in the following four cases. 1. Different A and B countries can only upload or download files within their respective countries. 2. Both A and B countries can upload or download files to each other. 3. State A can download and upload files from State B, but State B can only download from State A. 4. State A can download and upload files from State B, but State B can only upload to State A.

5 illustrates an operation control flow for generating a sub scan in the tracker server 200 of the P2P based update system according to an embodiment of the present invention.

First, the client 100 that wants to update a specific program through torrent-based distributed file update needs additional information necessary to configure a sub swarm when the torrent client program is installed, for example, the country of the country in which the client 100 belongs. After generating information such as code, company name, product name, company and personal information, and executing the torrent client program to access the tracker server 200 through a network such as the Internet, the seed file information and additional information of the client To the tracker server 200.

Then, the control unit 206 of the tracker server 200 receives the client-specific seed file information and additional information transmitted from each client 100 as described above through the communication unit 202.

Subsequently, the controller 206 receives seed file information and additional information from each client 100 connected to the tracker server 200 through the communication unit 202, and the same seed file information through the seed information analyzer 208. Configure clients with a single swarm.

Subsequently, the control unit 206 receives the additional information transmitted along with the seed file information, and through the sub swarm management unit 210, a plurality of small sub swarms that meet the characteristics of the additional information of each client again for the clients belonging to the swarm. To be configured.

At this time, in the configuration of the sub swarm, for example, a country or a company among the clients included in the same swarm may configure the same client as the sub swarm, or only individual users in the same country may be configured as the sub swarm. You can configure sub swarms in various ways.

As described above, when the swarm configuration and the sub swarm configuration for the client 100 which transmits the seed file information and the additional information to the tracker server 200 are completed, the control unit 206 may generate the swarm information and sub swarm information configured as described above. The storage unit 212 stores and manages the swarm information DB 214 and the sub swarm information DB 216, respectively.

Subsequently, the control unit 206 transmits the newly configured sub swarm information to the clients 100 through the communication unit 202 to the clients within the swarm configured according to the seed file information through the sub swarm management unit 210. ) Can be used to perform distributed file updates within a sub swarm configured for each client's characteristics, such as the same country or company.

In addition, the control unit 206 sets the data sharing method between sub-swarms for the sub-swarms configured as described above, and transmits the set data sharing method information together with the sub-swarm information so that each client is also required between different sub-swarms. The distributed file update may be performed according to the data sharing method set at 200.

That is, for example, when a sub swarm is configured according to a country as shown in FIG. 4, a data sharing scheme may be set as in the following four cases. 1. Different A and B countries can only upload or download files within their respective countries. 2. Both A and B countries can upload or download files to each other. 3. State A can download and upload files from State B, but State B can only download from State A. 4. State A can download and upload files from State B, but State B can only upload to State A.

As described above, in the P2P-based file update, the metadata file and each client at the time of server connection for obtaining the group information of the clients for the file update in the client having the metadata file having the information on the update target file Provides additional information such as country and company information, and the server provides sub-group information reconfigured in small scale according to additional information among clients in the group with the same metadata file to the client to newly update By allowing P2P-based file updates to be performed between the clients in the configured subgroups, it is possible to prevent a decrease in update rate and security problems caused by network connections between different countries or companies. In addition, clients with the same metadata file can be further subdivided into subgroups of clients belonging to the same country or clients belonging to the same company to prevent network connectivity and security problems, thereby improving the accuracy and speed of file updating. Can improve.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the claims rather than by the described embodiments.

Claims

A metadata information analyzer configured to analyze information of metadata files transmitted from each client through a network using a peer-to-peer (P2P) based protocol to configure clients having the same metadata file information into a group;

A subgroup manager configured to configure one or more subgroups according to additional information of each client with respect to the clients configured in the group

Control unit for managing information on the generated group and subgroup, and transmits the information of the subgroup to the client

P2P based update server device comprising a.
The method of claim 1,

The subgroup manager,

And comparing the additional information of each client with respect to the clients in the group, classifying the clients having the same information in the additional information, and configuring the sub-groups.
The method of claim 2,

The additional information,

And at least one piece of information indicating country or company to which the client belongs, or information indicating whether the client is an individual user or a company user.
The method of claim 3, wherein

The subgroup manager,

The sub-group based update server apparatus according to the comparison of the additional information, the sub-group consisting of clients in which the country information or company information among the clients in the group match.
The method of claim 1,

The subgroup manager,

P2P-based update server device characterized in that the network access is blocked from clients of different subgroups.
The method of claim 1,

The control unit,

P2P-based update server device, characterized in that for setting the file sharing method between the subgroups for one or more subgroups created in the same group to provide to the client.
The method of claim 6,

The file sharing method,

P2P based update server device, characterized in that the upload or download method of the file defined between the clients belonging to different subgroups.
The method of claim 1,

The P2P based protocol,

P2P based update server device, characterized in that the torrent protocol.
The method of claim 8,

The metadata file,

P2P based update server device, characterized in that the seed file that has information about the file to be updated.
The method of claim 1,

The information of the metadata file is

P2P based update server device, characterized in that the hash value recorded in the metadata file.
A metadata file information generation unit for generating information of the metadata file;

An additional information generating unit for generating additional information;

Transmit information and additional information of the metadata file to a server through a network using a P2P based protocol, and receive information of one or more subgroups classified according to the additional information among clients in the group having the same metadata file. To perform data transmission with clients in the subgroup

P2P based update client device comprising a.
The method of claim 11,

The subgroup,

P2P based update client device, characterized in that network access from clients of different subgroups is configured to be blocked.
Receiving information and additional information of a metadata file from each of a plurality of clients using a P2P based protocol;

Analyzing the metadata files sent from each client to configure clients having the same metadata file as a group;

Configuring at least one subgroup according to additional information of each client with respect to the clients configured as the group;

Managing information on the created group and subgroup, and transmitting information on the subgroup to a corresponding client

P2P based update method comprising a.
The method of claim 13,

Comprising the sub group,

Comparing additional information of each client with respect to clients in the group;

Classifying clients having information that matches each other in the additional information and configuring the subgroups

P2P-based update method comprising a.
The method of claim 14,

The additional information,

And at least one information indicating country or company information to which the client belongs, or information indicating whether the client is an individual user or a company user.
The method of claim 15,

In the subgroup group,

And comparing the additional information to configure the subgroups of clients in which the country information or the company information among the clients in the group match.
The method of claim 13,

The subgroup,

P2P-based update method characterized in that the network access from the clients of different subgroups are configured to be blocked.
The method of claim 13,

Setting a file sharing method between subgroups for a plurality of subgroups created in the same group;

Transmitting the information on the file sharing method to the corresponding client when the subgroup is transmitted;

P2P-based update method characterized in that it further comprises.
Generating information and additional information of the metadata file;

Transmitting information and additional information of the generated metadata file to a server using a P2P based protocol;

Receiving information of one or more subgroups classified according to the additional information among clients in the group having information of the same metadata file from the server;

Performing data transmission / reception with clients in the subgroup

P2P based update method comprising a.
The method of claim 19,

The subgroup,

P2P-based update method characterized in that the network access from the clients of different subgroups are configured to be blocked.
A plurality of clients generating information and additional information of a metadata file when executing a client program for data transmission, and transmitting the information through a network using a P2P based protocol;

Analyze the information of the metadata file transmitted from each client to configure the clients having the same metadata file as one group, and to the one or more subgroups according to the additional information of each client for the clients composed of the group. After configuring, the server for transmitting the information of the subgroup to the client through the P2P-based protocol

P2P based update system comprising a.