System and method for managing blockchain-based international investigative cooperation support work for responding to copyright crimes

Abstract

Provided are a system and method for managing blockchain-based international investigative cooperation support work for responding to copyright crimes. The system for managing investigative cooperation support work according to an embodiment of the present invention comprises: an investigative cooperation information sharing system for recording and providing investigative cooperation information about copyright crimes on the basis of a blockchain; and an evidence sharing system for storing and providing an evidence acquired by the investigative cooperation for the copyright crimes. Accordingly, by enabling sharing of investigative information and digital evidence for each case by using the blockchain, it is possible to support rapid international investigative cooperation for copyright crimes.

Description

Blockchain-based International Cooperation Investigation Support Work Management System and Method for Responding to Copyright Crimes

[0001] The present invention relates to support task management, and more specifically, to a technology for supporting international cooperative investigations based on blockchain to respond to copyright infringement crimes resulting from the illegal distribution of content.

[0002] As the environment of illegal content distribution has recently shifted to large-scale illegal streaming, tracking and investigating these illegal sites is necessary; however, since most of these sites have their servers located overseas, cooperation with international investigative agencies is essential for responding to the situation, such as arresting operators and shutting down the sites.

[0003] However, due to limitations such as the complexity of cooperation procedures for investigating the illegal distribution of global content, the time required for cooperation, issues regarding the admissibility of evidence obtained through cooperation, and the difficulty of guaranteeing compliance with other countries, legal, institutional, and policy improvements are necessary, including establishing a legal basis for international cooperation, expanding cooperation channels, simplifying cooperation procedures, and standardizing cooperation processes.

[0004] In addition, measures are also required for domestic agencies responsible for practical investigations—such as the Ministry of Culture, Sports and Tourism, the Korea Copyright Protection Agency, the police and prosecution, copyright holders, and copyright associations—as well as overseas investigative agencies and Interpol, to support the reception of reports, collection of evidence, analysis of evidence, deletion and blocking, tracking, and information sharing regarding online copyright crimes.

[0005] The present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide an international cooperative investigation support task management system that enables the sharing of investigation information and digital evidence on a case-by-case basis using blockchain, as a measure to support the rapid international cooperative investigation of copyright crimes.

[0006] A cooperative investigation support task management system according to one embodiment of the present invention for achieving the above objective includes: a cooperative investigation information sharing system that records and provides information on cooperative investigation of copyright crimes based on blockchain; and an evidence sharing system that stores and provides evidence obtained through cooperative investigation of copyright crimes.

[0007] The joint investigation information sharing system may include: an investigation information recording blockchain system comprising a record ledger in which investigation information regarding copyright crimes is recorded and a smart contract providing a function to record investigation information in the record ledger and retrieve it from the record ledger; and an evidence information recording blockchain system comprising a record ledger in which evidence information, which is information about evidence stored in the evidence sharing system, is recorded and a smart contract providing a function to record evidence information in the record ledger and retrieve it from the record ledger.

[0008] The joint investigation information sharing system may further include an information viewing log recording blockchain system comprising a record ledger that records information viewing logs in an investigation information record blockchain network and an evidence information record blockchain network, and a smart contract that provides a function to record information viewing logs in the record ledger and query them from the record ledger.

[0009] Blockchain systems can be private blockchain systems in which only authorized investigative agency terminals can participate.

[0010] The evidence sharing system can store evidence by classifying it into containers based on copyright crime cases. When a copyright crime case is concluded, the evidence sharing system can delete the evidence stored in the corresponding case's container in bulk.

[0011] The evidence information recording blockchain system can link to the corresponding evidence stored in the evidence sharing system when evidence information is queried.

[0012] Evidence stored in the evidence sharing system may be stored after being encrypted with the access control information and public key of the first investigative agency terminal, and then re-encrypted using a re-encryption key generated from the access control information and private key of the first investigative agency terminal and the public key of the second investigative agency terminal. The re-encrypted evidence may be decrypted using the access control information and private key of the second investigative agency terminal.

[0013] A method for managing joint investigation support tasks according to another embodiment of the present invention comprises: a joint investigation information sharing system recording and providing information on joint investigation of copyright crimes based on blockchain; and an evidence sharing system storing and providing evidence obtained through joint investigation of copyright crimes.

[0014] A cooperative investigation support task management system according to another embodiment of the present invention comprises: an investigation information recording blockchain system including a record ledger in which investigation information regarding copyright crimes is recorded and a smart contract providing a function to record investigation information in the record ledger and retrieve it from the record ledger; and an evidence information recording blockchain system including a record ledger in which evidence information, which is information about evidence stored in an evidence sharing system, is recorded and a smart contract providing a function to record evidence information in the record ledger and retrieve it from the record ledger.

[0015] A method for managing joint investigation support tasks according to another embodiment of the present invention comprises: a step in which an investigation information recording blockchain system records investigation information regarding copyright crimes in a record ledger; a step in which an investigation information recording blockchain system queries investigation information in the record ledger; a step in which an evidence information recording blockchain system records evidence information, which is information about evidence stored in an evidence sharing system, in a record ledger; and a step in which an evidence information recording blockchain system queries evidence information in the record ledger.

[0016] As explained above, according to the embodiments of the present invention, by enabling the sharing of investigation information and digital evidence on a case-by-case basis using a blockchain, it is possible to support rapid international cooperation in the investigation of copyright crimes.

[0017] In particular, according to the embodiments of the present invention, considering the environment of international cooperative investigation, blockchain-based information sharing enables the guarantee of the identity of digital evidence between parties, the management of investigation information, the provision of confidentiality during sharing, and the protection of investigation information and the assurance of system reliability in the process of responding to copyright infringement.

[0018] In addition, according to embodiments of the present invention, containers are distributed to cooperating investigative agencies on a case-by-case basis, and independent distributed storage clusters are operated using the distributed containers to block unnecessary information sharing. Furthermore, data sharing and batch deletion are possible in accordance with the evidence management procedure after the case is concluded within the distributed storage cluster created from the set of distributed containers.

[0019] Furthermore, according to embodiments of the present invention, it is possible to prevent tampering and guarantee the integrity of digital evidence by combining a Merkle tree and a private blockchain.

[0020] FIG. 1 is an international cooperative investigation work management process for responding to illegal content distribution copyright crimes to which the present invention is applicable,

[0021] FIG. 2 is an international cooperative investigation support task management system for responding to copyright crimes according to an embodiment of the present invention,

[0022] FIG. 3 is a diagram showing the detailed structure and function of the investigation information sharing system and the evidence sharing system.

[0023] Figure 4 shows the information recording and inquiry / viewing process of investigative agencies conducting joint investigations,

[0024] Fig. 5 is an evidence encryption / decryption method,

[0025] Figure 6 is an operation process of an international cooperative investigation support work management system according to an embodiment of the present invention.

[0026] The present invention will be described in more detail below with reference to the drawings.

[0027] In an embodiment of the present invention, a blockchain-based international cooperative investigation support task management system and method for responding to copyright crimes are presented. This is a technology that utilizes a blockchain system to enhance the objectivity and transparency of international cooperative investigation information management and to provide transparent information management regarding copyright forensic analysis information and related investigation support history.

[0028] FIG. 1 is an international cooperative investigation work management process for responding to copyright crimes involving the distribution of illegal content to which the present invention is applicable. As illustrated, the response to copyright crimes is carried out in the following steps.

[0029] 1. Infringement Reporting Stage: Receipt of infringement report, detection of infringement, lookup of infringing sites

[0030] 2. Infringement Analysis Phase: Monitoring of content distribution, collection and sharing of evidence regarding the distribution of illegal works, verification of content types and quantities by copyright infringement, identification of infringing content information (country, rights holder, etc.), and estimation of damages for each rights holder of the infringing content.

[0031] 3. Incident Response Phase: Request for international cooperative investigation, identification and comparative analysis of illegal evidence, storage and management of evidence data for cooperative response and final blocking / deletion of illegal content, DB analysis of infringing site information (IP information, etc.) and extraction and comparative analysis of illegal site signatures.

[0032] In this process, there may be limitations in responding to copyright crimes due to differing response procedures by country and traditional criminal justice cooperation systems. Furthermore, to address difficulties in evidence collection and sharing that consider the characteristics of copyrighted works with diverse formats and complex data structures, as well as the lack of security and anti-tampering measures necessary for sharing investigative information among domestic and foreign investigative and support agencies, it is necessary to manage international cooperation support operations that comprehensively perform report reception, evidence analysis, and evidence sharing to resolve these issues and enhance investigative capabilities against illegal distribution.

[0033] FIG. 2 is a diagram illustrating the configuration of an international cooperative investigation support task management system for responding to copyright crimes according to an embodiment of the present invention. As illustrated, the international cooperative investigation support task management system according to an embodiment of the present invention is configured to include an investigation information sharing system (100) and an evidence sharing system (200).

[0034] The investigation information sharing system (100) is a system for recording information related to the joint investigation of copyright crimes based on blockchain and providing it to joint investigation agencies, and is configured to include an investigation information recording blockchain system (110), an evidence information recording blockchain system (120), and an information viewing log recording blockchain system (130), as described.

[0035] The investigation information recording blockchain system (110) is a blockchain network for recording investigation information based on blockchain and providing it to cooperating investigation agencies, and the evidence information recording blockchain system (120) is a blockchain network for recording information about evidence based on blockchain and providing it to cooperating investigation agencies.

[0036] The information viewing log recording blockchain system (130) is a blockchain network for recording information viewing logs from the investigation information recording blockchain system (110) and the evidence information recording blockchain system (120) based on blockchain and providing them to cooperating investigation agencies.

[0037] The evidence sharing system (200) is a data platform for storing and providing evidence obtained during the joint investigation of copyright crimes. Unlike investigation information and evidence information, the evidence itself is large-capacity data, so it is difficult to store it on the smart contract-based on-chain, so it is implemented to store it off-chain.

[0038] The investigation information sharing system (100) and the evidence sharing system (200) will be described in more detail below with reference to FIG. 3. FIG. 3 is a diagram showing the detailed structure and function of the investigation information sharing system (100) and the evidence sharing system (200). A structure and function that enable the sharing of international cooperative investigation information, prevention of forgery and alteration of evidence, assurance of integrity, and verification management are presented.

[0039] As described, the investigation information record blockchain system (110) is configured to include a record ledger in which investigation information regarding copyright crimes is recorded, and a smart contract written to provide the function of recording investigation information in the record ledger and querying it from the record ledger.

[0040] And the evidence information recording blockchain system (120) is configured to include a record ledger in which evidence information, which is information about the evidence stored in the evidence sharing system (200), is recorded, and a smart contract written to provide the function of recording the evidence information in the record ledger and querying it from the record ledger.

[0041] Additionally, the information viewing log record blockchain system (130) is configured to include a record ledger in which investigation information viewing logs from the investigation information record blockchain system (110) and evidence information viewing logs from the evidence information record blockchain system (120) are recorded, and a smart contract written to provide a function to record viewing logs in the record ledger and to search in the record ledger.

[0042] In addition, the investigation information sharing system (100) may further include a blockchain system (140) for additional new services.

[0043] FIG. 4 illustrates the process of investigative agencies conducting a joint investigation recording investigation information or evidence information in a blockchain system (110, 120) and viewing / inquiring about it. Since the blockchain systems (110, 120, 130, 140) of the investigation information sharing system (100) are implemented as private blockchain networks, only authorized investigative agency terminals can participate in the blockchain networks to record and view information through authentication verification as illustrated.

[0044] Referring again to FIG. 3, the following explanation is provided. The evidence sharing system (200) stores evidence by classifying it according to copyright crime cases. To this end, the evidence sharing system (200) can be implemented on a Kubernetes platform, and the evidence can be stored in containers classified by case.

[0045] Furthermore, when a copyright crime case is concluded, the evidence sharing system (200) deletes the evidence stored in the case's container in bulk. On the other hand, the evidence information record blockchain system (120) does not delete the evidence information recorded in the ledger and maintains it for a longer period.

[0046] Meanwhile, a Merkle tree is generated using the hash values ​​of digital evidence data stored in the evidence sharing system (200), and the root value of the Merkle tree is recorded in the ledger of the evidence information recording blockchain system (120), thereby enabling on-off chain linkage. That is, when there is a query for evidence information in the evidence information recording blockchain system (120), it is possible to link it to the corresponding evidence stored in the evidence sharing system (200).

[0047] Digital evidence data is encrypted and stored in the evidence sharing system (200). FIG. 5 is a diagram illustrating the evidence encryption / decryption method.

[0048] As described above, digital evidence is encrypted at investigative agency terminal A using the access control information and public key of investigative agency terminal A and uploaded to the evidence sharing system (200). Subsequently, in the evidence sharing system (200), the digital evidence is re-encrypted using a re-encryption key generated from the access control information and private key of investigative agency terminal A and the public key of investigative agency B, which can request the provision of digital evidence. Re-encryption is intended to allow decryption only by investigative agency B.

[0049] Meanwhile, investigative agency terminal B, which intends to receive the digital evidence, downloads the re-encrypted digital evidence and restores the digital evidence by decrypting the re-encrypted digital evidence using investigative agency terminal B's access control information and private key.

[0050] Figure 6 is an operation process of an international cooperative investigation support task management system according to an embodiment of the present invention. As shown, through the management of international cooperative investigation support tasks using a blockchain system, the objectivity and transparency of copyright crime investigation information management can be enhanced, and thorough information management regarding the history of viewing and inquiry of copyright crime investigation information by various participating entities can be ensured by considering the environment of international cooperative investigation involving multiple countries.

[0051] Up to now, a blockchain-based international cooperative investigation support task management system and method for responding to copyright crimes has been described in detail with reference to preferred embodiments.

[0052] In the above embodiment, a system was presented to support rapid investigative cooperation through the sharing and viewing of digital evidence of copyright crimes by case, based on a business cooperation platform for supporting collaborative investigations of copyright crimes between domestic and foreign investigative agencies.

[0053] Specifically, by utilizing a blockchain-based cooperation platform for supporting collaborative investigations into copyright crimes, it resolves the reliability and security issues associated with the existing email-based sharing of investigative information with overseas investigative agencies and international cooperation officials, such as Interpol. Furthermore, it addresses the problem of guaranteeing the authenticity and integrity of evidence resulting from the individual management of existing copyright crime evidence and enables responses to physical damage or loss. Beyond the administrative aspects of information sharing, it also allows for support for international investigative cooperation in functional aspects, such as collection and analysis.

[0054] In the above embodiment, the linkage of the evidence information recording blockchain system (120) may be a mandatory condition for downloading evidence data from the evidence sharing system (200). That is, the evidence can be downloaded from the evidence sharing system (200) only when the evidence information is queried through the evidence information recording blockchain system (120).

[0055] In addition, it is possible to write a smart contract so that in the evidence information recording blockchain system (120), the inquiry into evidence information is possible only when the investigation information in which the evidence information was obtained has been previously queried in the investigation information recording blockchain system (110). This is intended to enhance security.

[0056] Furthermore, in this case, the scope of case information inquiry can be varied for each investigative agency terminal. Specifically, it is possible to assign security levels to case information and assign access authority levels to investigative agencies, thereby restricting the security level of case information that can be inquiry based on the access authority levels.

[0057] Meanwhile, it goes without saying that the technical concept of the present invention may also be applied to a computer-readable recording medium containing a computer program that enables the device and method according to the present embodiment to perform their functions. Furthermore, the technical concept according to various embodiments of the present invention may be implemented in the form of computer-readable code recorded on a computer-readable recording medium. A computer-readable recording medium may be any data storage device that can be read by a computer and store data. For example, a computer-readable recording medium may be a ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical disk, hard disk drive, etc. Additionally, computer-readable code or a program stored on a computer-readable recording medium may be transmitted through a network connected between computers.

[0058] Furthermore, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention.

Claims

1. A joint investigation information sharing system that records and provides information on joint investigations of copyright crimes based on blockchain; and A joint investigation support task management system characterized by including an evidence sharing system that stores and provides evidence obtained through a joint investigation of copyright crimes.

2. In Claim 1, The joint investigation information sharing system is, Investigation information recording blockchain system including a ledger in which investigation information regarding copyright crimes is recorded, and a smart contract that provides the function of recording investigation information in the ledger and querying it from the ledger; A joint investigation support task management system characterized by including: an evidence information recording blockchain system comprising a record ledger in which evidence information, which is information about evidence stored in an evidence sharing system, is recorded, and a smart contract that provides the function of recording evidence information in the record ledger and querying it from the record ledger.

3. In Claim 3, A joint investigation support task management system characterized by further including an information viewing log recording blockchain system comprising a record ledger that records information viewing logs in an investigation information recording blockchain network and an evidence information recording blockchain network, and a smart contract that provides a function to record information viewing logs in the record ledger and query them in the record ledger.

4. In Claim 3, Blockchain systems, A joint investigation support task management system characterized by private blockchain systems in which only authorized investigative agency terminals can participate.

5. In Claim 2, The evidence sharing system is, A joint investigation support task management system characterized by storing evidence in containers classified by copyright crime case.

6. In Claim 5, The evidence sharing system is, A joint investigation support task management system characterized by collectively deleting evidence stored in the case container when a copyright crime case is concluded.

7. In Claim 2, The evidence information recording blockchain system is, A joint investigation support task management system characterized by linking to the corresponding evidence stored in the evidence sharing system when there is a query for evidence information.

8. In Claim 2, The evidence stored in the evidence sharing system is, A joint investigation support task management system characterized by being encrypted with the access control information and public key of the first investigative agency terminal, and then re-encrypted and stored using a re-encryption key generated from the access control information and private key of the first investigative agency terminal and the public key of the second investigative agency terminal.

9. In Claim 8, The re-encrypted evidence is, A joint investigation support task management system characterized by being decrypted with access control information and a private key of a second investigative agency terminal.

10. A step in which a joint investigation information sharing system records and provides joint investigation information on copyright crimes based on blockchain; and A method for managing joint investigation support tasks characterized by including the step of the evidence sharing system storing and providing evidence obtained through joint investigation of copyright crimes.

11. An investigation information recording blockchain system comprising a record ledger in which investigation information regarding copyright crimes is recorded, and a smart contract that provides the function of recording investigation information in the record ledger and querying it from the record ledger; and A joint investigation support task management system characterized by including: an evidence information recording blockchain system comprising a record ledger in which evidence information, which is information about evidence stored in an evidence sharing system, is recorded, and a smart contract that provides the function of recording evidence information in the record ledger and querying it from the record ledger.

12. A step in which the investigation information record blockchain system records investigation information regarding copyright crimes in the ledger; The step in which the investigation information record blockchain system queries investigation information from the record ledger; A step in which an evidence information recording blockchain system records evidence information, which is information about evidence stored in an evidence sharing system, in a record ledger; A method for managing joint investigation support tasks characterized by including a step in which an evidence information recording blockchain system queries evidence information from a ledger.

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