Will data management service provision system

Abstract

We provide a system that uses blockchain technology to offer a will data management service that is cost-effective, highly secure, and convenient to process, while being resistant to cyberattacks such as quantum computer cryptography and ransomware. [Solution] The system 100 includes means 13 for obtaining consent information of persons with access rights to will data regarding the backup and restoration of will data, will data management information 14, will data management information setting acceptance means 15, will data management information setting / registration means 16, smart contract for will data management 17, death certificate confirmation monitoring means 18 for monitoring whether the death certificate of the person concerned has been confirmed, and a processing method based on the consent information of persons with access rights to will data using polynomial secret sharing encryption processing and multiple authentications to render predetermined information meaningless, manage it in a distributed manner as files sorted into multiple points, and manage the file index information by encrypting it.

Description

Technical Field

[0001] The present invention relates to a will data management service providing system that manages will data while protecting personal information and other data that is troublesome to manage in a system from risks such as high-level cyberattacks exceeding normal levels, intense natural disasters, or physical attacks that are assumed in the future, mainly using on-chain to defend against high-level cyberattacks. In addition, the "system" in the specification of the present application means a computer system that specifically realizes software-based information processing using hardware resources, which is configured by combining elements such as computers, other electronic devices, software, communication networks, and data.

Background Art

[0002] Conventionally, as an example of a measure for protecting data against general cyberattacks, distributed encryption technologies such as blockchain have been used. However, in the future, high-level cyberattacks exceeding normal levels (such as by state actors or actors that combine state and non-state actors), such as cryptographic analysis by quantum computers and EMP attacks, are assumed. These high-level cyberattacks aim to leak, tamper with, erase, or destroy digital assets (confidential information such as personal information and security-related information, control modules for important functions, currencies such as stablecoins, digital currencies, and digital securities, and rights such as contracts). Therefore, it has become important to guard digital assets against high-level cyberattacks.

[0003] The inventors of this case have developed a real-time evacuation and recovery type digital asset guard service provision system (Japanese Patent Application No. 2024-118956) that can preserve digital assets consisting of (basically) small-capacity data linked to personal information in real time, strongly and efficiently protect important information such as confidential information and personal information from high-level cyberattacks and physical destruction, and can restore important information without it being stolen by a third party even if it is subjected to cryptographic analysis by a quantum computer or an EMP attack, or makes it impossible for a third party to restore the managed information even if it is stolen by a third party. [Overview of the project] [Problems that the invention aims to solve]

[0004] The inventor of this case conceived of a next-generation will management service using a real-time digital asset guarding service provision system. The inventor then conducted extensive research and consideration of strategies for realizing this will management service.

[0005] This invention was made in view of the above problems, and aims to provide a will data management service system that uses blockchain technology to withstand evolving cyberattacks such as quantum computer cryptography, ransomware via users, and insider attacks, while offering superior cost, security strength, and processing convenience for managing will data. [Means for solving the problem]

[0006] To achieve the above objective, the will data management service provision system according to the present invention is constructed with a distributed ledger in blockchain or other distributed ledger technology, and a smart contract or server application for performing predetermined processing using data managed in the distributed ledger, and is a system that provides a service for managing will data while protecting personal information and other data that is troublesome to manage in a system from high-level cyberattacks mainly on-chain, and includes: a will data access authority person authentication identity information management means for managing identity information necessary for the authentication of will data access authority persons who have the authority to back up or disclose will data; a will data access authority person authentication system that performs authentication for each will data access authority person based on the will data access authority person authentication identity information managed by the will data access authority person authentication identity information management means; a consent information acquisition means for acquiring consent information of will data access authority persons regarding the backing up, restoration, and deletion of will data by will data access authority persons authenticated by the will data access authority person authentication system; and will data The system comprises: data management information, a means for receiving setting information for will data management information, a means for setting and registering information for will data management information, a smart contract for will data management, a means for monitoring whether the death certificate of the person concerned has been verified, and a real-time digital asset guard service provision system that performs meaningless processing on predetermined information by combining polynomial secret sharing encryption processing and a processing method based on the agreement information of the person authorized to access the will data through multiple authentications, manages the information in a distributed manner as files sorted into multiple points, and manages the index information of the distributed files by encrypting it. The will data management information includes: the personal information of the person who created the will data, the ID of the person's personal information which forms the personal information number linked to the person's personal information, the personal information and contact information of a person who has been entrusted or authorized by the person concerned to back up and disclose the will data, the ID of the personal information of a person who has been entrusted or authorized by the person concerned, the will data, personal information managed by the system that provides the service for managing the will data of the person concerned, and account information managed by financial institutions managed by other personal information management service provision systems.The will data management information setting acceptance means includes information linked to contract information and other personal information, monitoring information regarding the confirmation of the death certificate of the person concerned, and information regarding the release of the operational suspension state for authorization of complex processing by smart contract for will data management, and the will data management information setting acceptance means includes a means for accepting the setting of the personal information of the person concerned, which accepts the setting of the personal information of the person concerned, which accepts the setting of the personal information and contact information of the person concerned who has been entrusted or authorized by the person concerned for the backup and disclosure of the will data, which accepts the setting of the will data of the person concerned, which accepts the setting of the will data of the person concerned, and the will data management information setting acceptance means includes a means for accepting the setting of the personal information of the person concerned, which sets and registers the personal information of the person concerned, which has been received by the means for accepting the setting of the personal information of the person concerned, which is a black box environment in the will data management information setting area of ​​the real-time backup and restoration type digital asset guard service provision system, which sets and registers the personal information of the person concerned, which is a personal information number linked to the personal information of the person concerned, which is a personal information setting acceptance means of the person concerned A means for setting and registering the ID of a person's information, and the personal information and contact information of a person who has been entrusted or authorized by the person, which has been received by the means for receiving the personal information and contact information settings of a person who has been entrusted or authorized by the person, to be set and registered in the will data management information setting area; a means for setting and registering the ID of the personal information of a person who has been entrusted or authorized by the person, regarding the backup and disclosure of the person's personal information and will data, to be set and registered in the will data management information setting area; a means for setting and registering the ID of the personal information of a person who has been entrusted or authorized by the person, regarding the backup and disclosure of the person's personal information and will data, to be set and registered in the will data management information setting area; a means for setting and registering the linking information between personal information managed by a system that provides a service for managing the person's will data and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems, to be set and registered in the will data management information setting area; a means for setting and registering the will data from the person who has been received by the means for receiving the will data setting, to be set and registered in the will data management information setting area; and when the death certificate of the person has been confirmed by the means for monitoring whether the death certificate has been confirmed,The smart contract for will management includes a means for setting and registering information that the death certificate of the person concerned has been confirmed in the will data management information setting area, and a means for setting and registering information that the operation of the smart contract for will management has been deactivated in the will data management information setting area when the death certificate of the person concerned has been set and registered in the will data management information setting area by the means for setting and registering information that the operation of the smart contract for will management has been deactivated in the will data management information setting area, and when the smart contract for will management has been set and registered in the will data management information setting area by the means for setting and registering information that the operation of the smart contract for will management has been deactivated, it notifies the contact person who has been commissioned or authorized by the person concerned that the will data can be disclosed. The system has the function of decrypting the personal information of the individual, the personal information of those authorized or entrusted by the individual, and the will data set and registered in the will data management information setting area, through a combination of polynomial secret sharing encryption processing and a processing method based on the agreement of will data access rights holders through multiple authentications of the real-time digital asset guard service provider. The data is then distributed and managed as files sorted into multiple points. Furthermore, index information for these distributed files is managed in an encrypted state by the real-time digital asset guard service provider, and subsequently, the personal information of the individual, the personal information of those authorized or entrusted by the individual, and the will data set and registered in the will data management information setting area are deleted.

[0007] Furthermore, in the will data management service provision system of the present invention, it is preferable that the linked information consists of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of that personal information management service type.

[0008] Furthermore, in the will data management service provision system of the present invention, it is preferable that personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system and personal information managed by personal information management service provision systems of other personal information management service types (real-time digital asset guard service type, sub-personal information management service type) are linked via the linking information set and registered in the will data management information setting area.

[0009] Furthermore, in the will data management service provision system of the present invention, it is preferable that personal information managed by the service provision system for managing the will data of the person concerned and personal information managed by other personal information management service provision systems of different types of personal information management services are linked via the linking information set and registered in the will data management information setting area.

[0010] Furthermore, in the will data management service provision system of the present invention, if the aforementioned linking information between personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system and personal information of other personal information management service types is set and registered in the will data management information setting area, it is preferable that access rights (which can be set and registered on a per-personal information management service provision system basis for personal information management service types) to personal information managed by personal information management service provision systems of personal information management service types (core personal information management service type, sub personal information management service type) linked to the personal information of the predetermined personal information management service type managed by the real-time protected digital asset guard service provision system are set and registered.

[0011] Furthermore, the will data management service provision system of the present invention further comprises: a simplified information search key conversion means that converts personal information managed by a personal information management service provision system of a predetermined type of personal information management service into a simplified information search key using a predetermined secure computation in a bookbox environment; and a simplified information search means that searches personal information distributed and managed by the real-time protected digital asset guard service provision system using the simplified information search key converted by the simplified information search key conversion means. Preferably, the real-time protected digital asset guard service provision system also has a simplified information search key addition means that converts personal information into a simplified information search key using a predetermined secure computation in a bookbox environment, encrypts it, and adds it to the distributed personal information and index information.

[0012] Furthermore, in the will data management service provision system of the present invention, if, as a result of the search by the simplified information search means, there is no data in the personal information distributed and managed in the real-time protected digital asset guard service provision system that has a simplified information search key corresponding to the simplified information search key, the personal information managed by the personal information management service provision system of a predetermined personal information management service type is distributed and recorded in the real-time protected digital asset guard service provision system, an ID for the distributed and recorded personal information is created, set and registered in the will data management information setting area, and the ID for the personal information registered in the will data management information setting area is transmitted to the personal information management service provision system of the predetermined personal information management service type.

[0013] Furthermore, in the will data management service provision system of the present invention, if, as a result of a search by the simplified information search means, data having a simplified information search key corresponding to the simplified information search key exists among the personal information managed in a distributed manner in the real-time protected digital asset guard service provision system, it is preferable to further have a second personal information linking control means that sets and registers linking information consisting of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of the predetermined personal information management service type in the will data management information setting area, and transmits the ID of the personal information set and registered in the will data management information setting area to the personal information management service provision system of the predetermined personal information management service type.

[0014] Furthermore, in the will data management service provision system of the present invention, it is preferable that the simplified information search key conversion means is configured to extract a predetermined number of digits of data from the beginning of personal information managed by the personal information management service provision system of the predetermined personal information management service type and convert it into the simplified information search key by predetermined secure computation in a predetermined bookbox environment, and that the simplified information search means is configured to decode the simplified information search key attached to personal information managed in a distributed manner by the real-time protected digital asset guard service provision system and perform a search using the simplified information search key converted by the simplified information search key conversion means.

[0015] Furthermore, the will data management service provision system of the present invention preferably further includes a smart contract for displaying a list of will data-related personal information, which extracts and displays as information that can be viewed in a list format the personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system, which is linked via the linking information set and registered in the will data management information setting area, and personal information managed by personal information management service provision systems of other personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type).

[0016] Furthermore, in the will data management service provision system of the present invention, it is preferable that the personal information managed by other personal information management service provision systems (real-time protected digital asset guard service type, sub-personal information management service type) that is linked to the personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system via the linking information set and registered in the will data management information setting area is asset information of financial institutions (account information managed by financial institutions) or management address information of tokens with asset value.

[0017] Furthermore, in the will data management service provision system of the present invention, it is preferable that the personal information managed by other personal information management service provision systems (real-time digital asset guard service type, sub-personal information management service type) that is linked to the personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system via the linking information set and registered in the will data management information setting area is contract information.

[0018] Furthermore, the will data management service provision system of the present invention preferably further includes a smart contract for displaying a list of will data-related contract information, which has a list display function that allows users to check the contents of contracts related to the person concerned in the contract information, the effect of said contracts, the validity period of said contracts, etc.

[0019] Furthermore, in the will data management service provision system of the present invention, it is preferable to have a death certificate notification means that, when information indicating that the death certificate of the person concerned has been confirmed is set and registered in the will data management information setting area by the death certificate confirmation information setting and registration means, notifies the financial institutions and tax offices related to the person concerned, which are set and registered in the will data management information setting area as contact information of persons authorized or permitted by the person concerned, that the death certificate of the person concerned has been confirmed.

[0020] Furthermore, in the will data management service provision system of the present invention, the real-time protected digital asset guard service provision system is a unit that combines blockchain and file distributed management functions, etc., consisting of a group of nodes that combine nodes in multiple locations in different regions around the world, and is constructed by having multiple planets that form a single unit that constitutes a system for providing services that implement distributed smart contracts, server applications, etc., and is mainly a closed blockchain such as a private or consortium type, and is composed of at least one distributed ledger structure that is composed of multiple chains that may include a group of distributed ledgers and a public blockchain, etc., and based on the agreement information regarding the safekeeping of will data by the person with access rights to the will data obtained by the agreement information acquisition means, the personal information of the person, the personal information of the person who has been entrusted or authorized by the person, and the will data set and registered in the will data management information setting area are encrypted and polynomial secret sharing is used to separate the data. A means of encryption and polynomial secret sharing partitioning that divides the file data into a number of file data; a means of sorting the multiple file data divided by the encryption and polynomial secret sharing partitioning means by associating them with one of a number of security points; a means of security point sorting destination information management that manages the sorting destination information of the file data sorted by the security point sorting means in a black box environment; a means of modification and distributed recording that modifies the file data sorted by the security point sorting means and distributes the file data that does not exceed the block size to multiple nodes of a distributed management file group established on the blockchain, and the file data that exceeds the block size to multiple nodes of a distributed management file group separate from the blockchain; a means of creating, encrypting, and recording index information of the file data distributed and recorded by the modification and distributed recording means and recording it on a specific node of the blockchain in a black box environment.Based on the agreement information obtained by the agreement information acquisition means regarding the restoration of the will data by the person with access rights to the will data, the index information decryption means decrypts the index information of the file data recorded in the index information creation, encryption, and recording means for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means; based on the index information decrypted by the index information decryption means, the file data extraction means extracts the modified and distributed recorded file data from multiple nodes of the distributed management file of the preservation destination blockchain and multiple nodes of a distributed management file separate from the blockchain, and restores it to its state before modification; and integrates and decrypts the fragmented file data extracted by the file data extraction means to restore the personal information of the person in question, the personal information of persons who have been commissioned or authorized by the person in question, and the will data before backup. Based on the agreement information obtained by the agreement information acquisition means regarding the deletion of will data by the person information / will data recovery means, and the agreement information obtained by the person information acquisition means regarding the deletion of will data by the person information access authority, a deletion processing index information decryption means decrypts the index information of the file data recorded in the index information creation / encryption / recording means for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means, a file data deletion means deletes the file data of a predetermined generation or earlier that has been modified and distributed recorded on multiple nodes of the distributed management file of the preservation destination blockchain and multiple nodes of a distributed management file separate from the blockchain, based on the index information decrypted by the deletion processing index information decryption means, and based on the agreement information obtained by the agreement information acquisition means regarding the deletion of will data by the person information / will data access authority,Preferably, there is also provided a second file data deletion means for deleting the information of the preservation point associated with the file data to be deleted, which is managed in the black box environment by the preservation point sorting destination information management means.

[0021] In addition, in the will data management service providing system of the present invention, information indicating that the death certificate of the person has been confirmed is set and registered in the will data management information setting area by the death certificate confirmation information setting / registration means, and based on the consent information regarding the restoration of the will data by the will data access authority of the will data access authority obtained by the consent information acquisition means, when the will data of the person is restored via the real-time preservation type digital asset guard service providing system, it is preferable to further include a will data digital certificate issuance means for issuing a digital certificate for the restored will data to a lawyer who is the will data access authority.

Advantages of the Invention

[0022] According to the present invention, by using blockchain technology, a will data management service providing system can be obtained that is excellent in cost, security strength, and processing convenience and can withstand evolving cyberattacks such as quantum computer cryptanalysis / ransomware via users / internal crimes in the management of will data.

Brief Description of the Drawings

[0023] [Figure 1] It is an explanatory diagram schematically showing an example of the overall configuration of a will data management service providing system according to a first embodiment of the present invention. [Figure 2] It is an explanatory diagram schematically showing the configuration of the personal confirmation information management means for authenticating the will data access authority provided in the will data management service providing system of the first embodiment. [Figure 3] It is an explanatory diagram schematically showing the configuration of the will data access authority authentication system provided in the will data management service providing system of the first embodiment. [Figure 4]It is an explanatory diagram schematically showing the configuration of the agreement information acquisition means provided in the will data management service providing system of the first embodiment. [Figure 5] It is an explanatory diagram schematically showing the configuration of the will data management information provided in the will data management service providing system of the first embodiment. [Figure 6] It is an explanatory diagram schematically showing the configuration of the will data management information setting reception means provided in the will data management service providing system of the first embodiment. [Figure 7] It is an explanatory diagram schematically showing the configuration of the personal information setting reception means provided in the will data management information setting reception means in the will data management service providing system of the first embodiment. [Figure 8] It is an explanatory diagram schematically showing the configuration of the personal information and contact information setting reception means of the person who has received the entrustment and permission from the self in the will data management information setting reception means in the will data management service providing system of the first embodiment. [Figure 9] It is an explanatory diagram schematically showing the configuration of the will data setting reception means in the will data management service providing system of the first embodiment. [Figure 10] [[ID=e18]]It is an explanatory diagram schematically showing the configuration of the will data management information setting / registration means provided in the will data management information setting reception means in the will data management service providing system of the first embodiment. [Figure 11] It is an explanatory diagram schematically showing the configuration of the personal information setting / registration means provided in the will data management information setting / registration means in the will data management service providing system of the first embodiment. [Figure 12] It is an explanatory diagram schematically showing the configuration of the ID setting / registration means of the personal information of the self provided in the will data management information setting / registration means in the will data management service providing system of the first embodiment. [Figure 13] It is an explanatory diagram schematically showing the configuration of the personal information and contact information setting / registration means of the person who has received the entrustment and permission from the self provided in the will data management information setting / registration means in the will data management service providing system of the first embodiment. [Figure 14]This is an explanatory diagram illustrating the configuration of the ID setting and registration means 16 for personal information of a person who has been entrusted or authorized by the person concerned, which is included in the will data management information setting and registration means in the will data management service provision system of the first embodiment. [Figure 15] This is an explanatory diagram illustrating the schematic configuration of the linking information setting and registration means included in the will data management information setting and registration means in the will data management service provision system of the first embodiment. [Figure 16] This is an explanatory diagram illustrating the configuration of the will data setting and registration means included in the will data management information setting and registration means in the will data management service provision system of the first embodiment. [Figure 17] This is an explanatory diagram illustrating the configuration of the death certificate confirmation information setting and registration means included in the will data management information setting and registration means in the will data management service provision system of the first embodiment. [Figure 18] This is an explanatory diagram illustrating the configuration of the management smart contract operation stop state release setting / registration means provided in the will data management information setting / registration means in the will data management service provision system of the first embodiment. [Figure 19] This is an explanatory diagram illustrating the schematic configuration of the smart contract for will data management included in the will data management information setting and registration means in the will data management service provision system of the first embodiment. [Figure 20] This is an explanatory diagram illustrating the configuration of the death certificate verification monitoring means included in the will data management service provision system of the first embodiment. [Figure 21] This is an explanatory diagram illustrating the schematic configuration of linked information in the will data management service provision system of the first embodiment. [Figure 22] This is a schematic diagram illustrating an example of the configuration for linking personal information via linked information in the will data management service provision system of the first embodiment. [Figure 23] This is a schematic diagram illustrating another example of the configuration for linking personal information via linked information in the will data management service provision system of the first embodiment. [Figure 24]This is a schematic diagram illustrating an example of a processing configuration via linked information in the will data management service provision system of the first embodiment. [Figure 25] This is an explanatory diagram illustrating the configuration of the simplified information retrieval key conversion means provided in the will data management service provision system of the first embodiment. [Figure 26] This is an explanatory diagram illustrating the configuration of a simplified information retrieval means included in the will data management service provision system of the first embodiment. [Figure 27] This is an explanatory diagram illustrating the configuration of the first personal information linking control means provided in the will data management service provision system of the first embodiment. [Figure 28] This is a schematic diagram illustrating the configuration of the second personal information linking control means provided in the will data management service provision system of the first embodiment. [Figure 29] This is a schematic diagram illustrating the configuration of the simple information retrieval key addition means provided in the real-time protected digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 30] This is an explanatory diagram illustrating the schematic configuration of the smart contract for displaying a list of personal information related to will data, which is included in the will data management service provision system of the first embodiment. [Figure 31] This is an explanatory diagram illustrating the schematic configuration of the smart contract for displaying a list of contract information related to will data, which is included in the will data management service provision system of the first embodiment. [Figure 32] This is an explanatory diagram illustrating the configuration of the death certificate notification means included in the will data management service provision system of the first embodiment. [Figure 33] This is a schematic diagram illustrating the configuration of the will data digital certificate issuance means included in the will data management service provision system of the first embodiment. [Figure 34] This is a conceptual diagram illustrating the configuration of the real-time digital asset protection service provision system included in the will data management service provision system of the first embodiment. [Figure 35]This is an explanatory diagram illustrating the configuration of the real-time digital asset protection service provision system included in the will data management service provision system of the first embodiment. [Figure 36] This is an explanatory diagram illustrating the configuration of the encryption and polynomial secret sharing partitioning means included in the real-time protected digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 37] This is an explanatory diagram illustrating the configuration of the preservation point sorting means included in the real-time preservation type digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 38] This is an explanatory diagram illustrating the configuration of the preservation point sorting destination information management means provided in the real-time preservation type digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 39] This is an explanatory diagram illustrating the configuration of the modification and distributed recording means included in the real-time preservation type digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 40] This is an explanatory diagram illustrating the configuration of the index information creation, encryption, and recording means included in the real-time protected digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 41] This is a schematic diagram illustrating the configuration of the index information decoding means included in the real-time digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 42] This is a schematic diagram illustrating the configuration of the file data extraction means included in the real-time digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 43]This is an explanatory diagram illustrating the configuration of the personal information and will data recovery means included in the real-time digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 44] This is a schematic diagram illustrating the configuration of the index information decoding means during deletion processing, which is provided in the real-time preservation type digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 45] This is an explanatory diagram illustrating the configuration of the file data deletion means provided in the real-time digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 46] This is a schematic diagram illustrating the configuration of the second file data deletion means provided in the real-time digital asset guard service provision system in the will data management service provision system of the first embodiment. [Figure 47] This is an explanatory diagram illustrating an example of how personal information managed by multiple personal information management services is linked to each other in the will data management service provision system of the first embodiment. [Figure 48] This is an explanatory diagram illustrating an example of how to link personal information managed by each personal information management service provision system for each type of personal information management service in the will data management service provision system of the first embodiment. [Figure 49] This is an explanatory diagram showing a part of the processing flow before the death of the person using the will data management service provision system of the first embodiment. [Figure 50] This is an explanatory diagram showing another part of the processing flow before the death of the person using the will data management service provision system of the first embodiment. [Figure 51] This is an explanatory diagram showing a part of the processing flow after the death of a person using the will data management service provision system of the first embodiment. [Figure 52] This is an explanatory diagram showing the flow of processing after the death of a person using the will data management service provision system of the first embodiment. [Figure 53]This is an explanatory diagram showing part of the process for preserving personal information related to a person's will data before their death, using the will data management service provision system of the first embodiment. [Figure 54] This is an explanatory diagram showing another part of the process for preserving personal information related to a person's will data before their death, using the will data management service provision system of the first embodiment. [Figure 55] This is an explanatory diagram showing part of the process for restoring a person's will data after their death using the will data management service provision system of the first embodiment. [Figure 56] This is an explanatory diagram showing another part of the process for restoring a person's will data after their death using the will data management service provision system of the first embodiment. [Figure 57] This is an explanatory diagram showing part of the process for linking personal information managed by multiple personal information management services using the will data management service provision system of the first embodiment. [Figure 58] This is an explanatory diagram showing another part of the process for linking personal information managed by multiple personal information management services using the will data management service provision system of the first embodiment. [Figure 59] This is an explanatory diagram illustrating the process of displaying a list of will data-related information using the will data management service provision system of the first embodiment. [Figure 60] This is an explanatory diagram showing part of the process for deleting personal information related to a person's will data using the will data management service provision system of the first embodiment. [Figure 61] This is an explanatory diagram showing another part of the process for deleting personal information related to a person's will data using the will data management service provision system of the first embodiment. [Modes for carrying out the invention]

[0024] Before describing the embodiments, we will explain the circumstances that led to the invention and the effects of the invention.

[0025] As mentioned above, conventionally, distributed encryption technologies such as blockchain have been used as one example of a measure to protect data from common cyberattacks. However, in the future, we anticipate high-level cyberattacks exceeding normal levels (by state actors, or actors combining state and non-state actors, etc.), such as cryptographic analysis using quantum computers and EMP attacks, which will be discussed later. These high-level cyberattacks aim to leak, alter, delete, or destroy digital assets (confidential information such as personal information and security-related information, control modules for critical functions, currencies such as stablecoins, digital currencies and digital securities, and rights such as contracts). Therefore, it is crucial to protect digital assets from high-level cyberattacks.

[0026] However, the inventor of this case has developed a real-time evacuation and recovery type digital asset guard service provision system (Japanese Patent Application No. 2024-118956) that can preserve digital assets, which are (basically) small-capacity data linked to personal information, in real time, and can strongly and efficiently protect important information such as confidential information and personal information from high-level cyberattacks and physical destruction, and can restore important information without it being stolen by a third party even if it is subjected to cryptographic analysis by a quantum computer or an EMP attack, or makes it impossible for a third party to restore the managed information even if it is stolen by a third party.

[0027] The inventor of this case conceived of a next-generation will management service using a real-time backup and restoration type digital asset guard service provision system, and has conducted the following considerations and studies regarding measures to realize this will management service.

[0028] The inventor of this case considered and examined next-generation will management. As a measure to enable will management to be controlled using a smartphone, provided that authentication, i.e., personal identification, is performed, the inventor devised a will management system using a real-time backup and recovery type digital asset guard service provision system.

[0029] The real-time data recovery and restoration digital asset guarding service provision system developed by the inventor of this case has different processing for the upstream process, i.e., data recovery, and the downstream process, i.e., data synthesis (data restoration and integration).

[0030] Person authorized to retrieve will data The inventor of this case conceived of a system in will management where the backup of created will data, which is the upstream processing step, is a process that makes data tampering impossible. The inventor also conceived of a system where only the person who wishes to back up the will data and those authorized or permitted by that person can be authorized to back up the will data and can issue instructions (accompanied by an agreement regarding backup using multiple authentications).

[0031] Authorized person to disclose will data Furthermore, the inventors of this case have conceived a system in which, in will management, the decomposition and disclosure of will data, which involves processing by the person who wishes to back up the will data, can be confirmed by issuing instructions (with an agreement for decomposition and disclosure via multiple authentication) to a person authorized to disclose the will data (before the person's death, the person themselves and a person authorized or permitted by the person themselves; after the person's death, a person other than the person themselves) regarding the decomposition and disclosure of the backed-up will data, by accepting and registering the setting of an ID linked to the personal information of the person authorized by the person. In other words, we considered assigning different authority to handle the safekeeping of will data and the disclosure of will data after the death of the person concerned.

[0032] Timing of the disclosure process for will data The inventor of this case considered that, in disclosing will data, when the death certificate of the person who backed up the will data is confirmed, the setting that disables the operation of the will data compounding (restoration and integration) process by a predetermined smart contract for will management, which was set in the will data management information setting area under the black box environment of the real-time backup and restoration type digital asset guard service provision system, is released.

[0033] Example of will data disclosure process The inventors of this case have considered a scenario in which, for example, in a real-time backup and restoration type digital asset guard service provision system, personal information of an individual who wishes to back up their will data and lawyer information are recorded in a distributed manner, and in the backup of the will data, a designated lawyer is set and registered in the will data management information setting area under the black box environment of the real-time backup and restoration type digital asset guard service provision system as the authorized person to disclose the will data, and the lawyer set and registered in the will data management information setting area of ​​the real-time backup and restoration type digital asset guard service provision system will be able to participate in the disclosure of the will data backed up in the real-time backup and restoration type digital asset guard service provision system as the authorized person to disclose the will data as soon as the death certificate of the individual is confirmed.

[0034] Furthermore, the inventor of this case considered a system in which, if, before the death of the person concerned, the contact information of the person authorized to disclose the will data was set and registered in the will data management information setting area under the black box environment of the real-time backup and restoration type digital asset guard service provision system, the system would notify the contact person authorized to disclose the will data that the will data could be disclosed after the death of the person concerned.

[0035] Backing up will data The inventor of this case envisioned that, when backing up will data, the will (document) data created by the person requesting the backing up of the will data would be set and registered in the will data management information setting area under a black box environment in the real-time backing up / restoration type digital asset guard service provision system, via the person themselves or a person authorized or permitted by the person, and recorded in a distributed manner. Furthermore, the inventor envisioned that the real-time backing up / restoration type digital asset guard service provision system would set and register the personal information number (personal information ID) associated with the person, which the system has set and registered, in the will data management information setting area under a black box environment.

[0036] Linking personal information numbers (personal information IDs) to personal information The inventor of this case considered linking personal information numbers (personal information IDs) to personal information used to identify an individual (including address, name, date of birth, gender, or a definition of their descendants), and setting and registering them in the will data management information setting area under a black box environment in the real-time backup and restoration type digital asset guard service provision system.

[0037] If personal information is stored in a dispersed manner The inventor of this case considered a method in which, if a given personal information is distributed and recorded in a real-time backup and recovery type digital asset guard service provision system, the personal information number (personal information ID) associated with that individual's personal information is used to set and register information linking the real-time backup and recovery type digital asset guard service provision system with a will information management service and other personal information management systems in the will data management information setting area, which is a black box environment in the real-time backup and recovery type digital asset guard service provision system. For example, we considered setting and registering linked information consisting of a will information management service type number and the ID of personal information managed by the will information management service provision system in the will data management information setting area under a black box environment in the real-time backup / recovery type digital asset guard service provision system.

[0038] If personal information is not stored in a distributed manner The inventor of this case considered the following: if the specified personal information is not distributed and recorded in the real-time backup and recovery type digital asset guard service provision system, the inventor would distribute and record the personal information of the individual in question in the real-time backup and recovery type digital asset guard service provision system, create an ID for the distributed and recorded personal information, set and register it in the will data management information setting area under the black box environment of the real-time backup and recovery type digital asset guard service provision system, and make it possible to search for the personal information of the individual using the personal information number (personal information ID) linked to the individual's personal information. *We considered distributing and recording the personal information of the individual concerned, including asset information from financial institutions (account information managed by financial institutions) and the management address information of tokens with asset value. *Token management address information includes management information for the digital asset guard service provision system that provides real-time backup and recovery of private keys.

[0039] A management function for a list of contract information related to an individual who wishes to back up their will data, as personal information of that individual. Furthermore, the inventor of this case considered providing a list management function that allows users to check the contents of contracts related to the person in question, the validity of those contracts, and the validity period of those contracts.

[0040] A unified record of the will data and the account information managed by the financial institution as personal information of the person who wishes to back up their will data. Furthermore, the inventor of this invention conceived of a way to centrally record account information managed by financial institutions, which constitutes the personal information of the individual concerned, together with will data.

[0041] Furthermore, the inventor of this invention ensures that the personal information of the individual in question, managed by the real-time backup and restoration type digital asset guard service provision system, can only be accessed by the individual and those authorized or permitted by the individual while the individual is alive (combining will data while the individual is alive is only possible by the individual and those authorized or permitted by the individual, and the number of people who can combine and disclose the data after the individual's death will be switched).

[0042] Furthermore, the inventors envisioned a system where, upon the death of the person concerned and the setting of a death flag for that individual (confirmation of the person's death certificate) in the will data management information setting area under the black box environment, a predetermined smart contract for will management would perform predetermined processing based on the will data (authorization of complex processing: release of the operation stop state setting). In addition, the inventors envisioned a system where the person authorized to disclose the will data after the death of the person concerned would be notified of the relevant information (confirmation of the person's death certificate), and various pieces of personal information owned by the person concerned would be made available to a limited number of recipients. In that case, we considered enabling legal administrators such as lawyers to connect to the downstream processing, i.e., the data composite (data restoration and integration) processing system, as authorized persons (those whose lawyer information is distributed and recorded in the real-time backup / restoration type digital asset guard service provision system, and who, in the backup of will data, were designated by the person concerned and, after the death of that person, were designated as the authorized lawyer to disclose the will data in the will data management information setting area under the black box environment of the real-time backup / restoration type digital asset guard service provision system).

[0043] Furthermore, the inventor envisioned an automated notification system that would also inform financial institutions and tax offices (if registered and deemed relevant) that the death certificate of the person in question had been confirmed, enabling the financial institutions to freeze the person's account. The inventor also considered issuing digital certificates to lawyers and other professionals based on the contents of the will data.

[0044] The inventors, after combining the strategies derived from the above considerations and studies, and after further consideration and studies, have developed a will data management service provision system that uses blockchain technology to withstand evolving cyberattacks such as quantum computer cryptography analysis, ransomware via users, and insider attacks, while also offering superior cost-effectiveness, security strength, and processing convenience.

[0045] The present invention provides a will data management service provision system that is built with a distributed ledger in blockchain or other distributed ledger technology, and a smart contract or server application for performing predetermined processing using data managed in the distributed ledger, and provides a service for managing will data while protecting personal information and other data that is difficult to manage in a system from high-level cyberattacks, primarily on-chain. A will data access authority authentication identity information management means for managing identity verification information necessary for authenticating will data access authority persons who have the authority to back up or disclose will data; a will data access authority person authentication system that performs authentication for each will data access authority person based on the identity verification information for will data access authority person authentication managed by the will data access authority person authentication identity information management means; agreement information acquisition means for acquiring agreement information of will data access authority persons regarding backing up, restoring, and deleting will data by will data access authority persons authenticated by the will data access authority person authentication system; will data management information; will data management information setting acceptance means; will data management information setting / registration means; will data management smart contract for will data management; death certificate confirmation confirmation monitoring means for monitoring whether the death certificate of the person concerned has been confirmed; and a processing method based on agreement information of will data access authority persons by combining polynomial secret sharing encryption processing and multiple authentications to perform meaningless processing on predetermined information and manage it in a distributed manner as files sorted into multiple points, and the distributed management files The system includes a real-time digital asset guard service provision system that encrypts and manages index information about the will, and the will data management information includes the personal information of the person who created the will data, the ID of the person's personal information which is linked to the personal information of the person, the personal information and contact information of a person who has been entrusted or authorized by the person to back up and disclose the will data of the person, the ID of the personal information of the person who has been entrusted or authorized by the person, the will data, linkage information between personal information managed by the system that provides the service for managing the will data of the person and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems, monitoring information on whether the death certificate of the person has been confirmed, and information on whether the operation stop state has been released for authorization of complex processing by smart contracts for will data management, and the will data management information setting acceptance means includes a personal information setting acceptance means that accepts the setting of the personal information of the person, and the personal information of a person who has been entrusted or authorized by the person to back up and disclose the will data,The system includes a means for receiving contact information settings, a means for receiving personal information and contact information settings from a person authorized or authorized by the person concerned, and a means for receiving will data settings from the person concerned. The will data management information setting / registration means sets and registers the personal information of the person concerned, received by the personal information setting receiving means, in the will data management information setting area under a black box environment in the real-time backup / restore type digital asset guard service provision system. The personal information setting / registration means also includes a means for setting and registering personal information that forms a personal information number linked to the personal information of the person concerned. The means for setting and registering the ID of the person's personal information, which is set and registered in the will data management information setting area, and the means for receiving the personal information and contact information of the person who has been entrusted or authorized by the person, which has received the personal information and contact information of the person who has been entrusted or authorized by the person, which is set and registered in the will data management information setting area, and the means for setting and registering the personal information and contact information of the person who has been entrusted or authorized by the person, which is set and registered in the will data management information setting area, which is set and registered in the will data management information setting area, A means for setting and registering the ID of personal information of a person who has been entrusted or authorized by the service provider, a means for setting and registering the linking information between personal information managed by the system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provider systems, in the will data management information setting area, a means for setting and registering the will data received from the person concerned by the will data setting acceptance means, in the will data management information setting area, and a means for setting and registering the will data The system includes: a death certificate confirmation information setting / registration means that, when the death certificate of the person concerned is confirmed by an unmonitoring means, sets / registers information indicating that the death certificate of the person concerned has been confirmed in the will data management information setting area; and a management smart contract operation suspension release setting / registration means that, when the death certificate of the person concerned is set / registered in the will data management information setting area by the death certificate confirmation information setting / registration means, sets / registers information indicating the release of the operation suspension state for authorization of complex processing by the smart contract for will data management in the will data management information setting area;The smart contract for managing will data has a function to notify the contact person authorized by the individual concerned that the will data can be disclosed when the release of the operation status information is set and registered in the will data management information setting area by the smart contract operation status release setting and registration means. The personal information of the individual concerned, the personal information of the person authorized by the individual concerned, and the will data set and registered in the will data management information setting area are rendered meaningless through a combination of polynomial secret sharing encryption processing of the real-time digital asset guard service provider system and a processing method based on the agreement of the will data access rights holders through multiple authentications. These are then distributed and managed as files sorted into multiple points. Index information for the distributed files is managed in an encrypted state by the real-time digital asset guard service provider system. Subsequently, the personal information of the individual concerned, the personal information of the person authorized by the individual concerned, and the will data set and registered in the will data management information setting area are deleted.

[0046] The present invention provides a will data management service system which includes will data management information, a will data management information setting acceptance means, a will data management information setting / registration means, and a smart contract for will data management, wherein the will data management information includes the personal information of the person who created the will data, the ID of the person's personal information which is linked to the personal information of the person, the personal information and contact information of a person who has been entrusted or authorized by the person to back up and disclose the will data of the person, the ID of the personal information of the person who has been entrusted or authorized by the person, the will data, linkage information between personal information managed by a system that provides a service for managing the will data of the person and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service system, monitoring information on whether the person's death certificate has been confirmed, and information on whether the operation stop state has been released for authorization of complex processing by the smart contract for will data management, wherein the will data management information setting acceptance means includes a personal information setting acceptance means for accepting the setting of the person's personal information from the person, and the person who has been entrusted or authorized by the person to back up and disclose the will data The system includes a means for receiving the personal information and contact information settings of a person who has been entrusted or authorized by the person concerned, and a means for receiving the will data settings of a person who has been entrusted or authorized by the person concerned, and a means for receiving the will data settings of a person who has been entrusted or authorized by the person concerned, wherein the will data management information setting / registration means sets and registers the personal information of the person concerned, which has been received by the personal information setting receiving means for the person concerned, in the will data management information setting area under a black box environment in the real-time backup / recovery type digital asset guard service provision system, and a means for setting and registering the personal information ID of the person concerned, which is the personal information number linked to the personal information of the person concerned, in the will data management information setting area, and a means for setting and registering the personal information and contact information of a person who has been entrusted or authorized by the person concerned, which has been received by the personal information and contact information setting receiving means for the person concerned, in the will data management information setting area, and a means for setting and registering the personal information and contact information of a person who has been entrusted or authorized by the person concerned, which has been received by the personal information and contact information setting receiving means for the person concerned,If the system is configured to include a means for setting and registering the ID of the authorized person's personal information in the will data management information setting area, and a means for setting and registering the ID of the authorized person's personal information in the will data management information setting area, and a means for setting and registering the linking information between personal information managed by a system that provides a service for managing the will data of the person in question and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems in the will data management information setting area, then it becomes possible to set the will data of the person in question, the person who will disclose the will data as desired by the person, and the person's financial information and other personal information related to the will data in a black box environment via the will data management information setting area, and to smoothly notify the person that the will data can be disclosed to the person who will disclose it as desired after the person's death.

[0047] Furthermore, if the will data management service provision system of the present invention is configured such that the will data management information includes linking information between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems, and the will data management information setting / registration means includes a linking information setting / registration means that sets / registers the linking information between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems in the will data management information setting area, then when disclosing the will data to a person concerned who desires to receive the will data after the person's death, it becomes possible to disclose the linking information between the account information, contract information, and other personal information managed by financial institutions related to the person's will along with the will data.

[0048] Furthermore, if the will data management service provision system of the present invention is configured to include: a will data access authority authentication identity information management means for managing identity information necessary for authenticating will data access authority persons who have the authority to back up or disclose will data; a will data access authority person authentication system that performs authentication for each will data access authority person based on the identity information for will data access authority person authentication managed by the will data access authority person authentication identity information management means; and an agreement information acquisition means for acquiring agreement information of will data access authority persons regarding the backing up, restoration, and deletion of will data by will data access authority persons authenticated by the will data access authority person authentication system, then it becomes possible to obtain agreement information regarding will data access by will data access authority persons (preservation of will data, restoration of will data) while guaranteeing the authenticity of will data access authority persons.

[0049] Furthermore, the present invention provides a will data management service provision system that includes a death certificate verification monitoring means for monitoring whether the death certificate of the person concerned has been verified, and a death certificate verification information setting / registration means which, when the death certificate of the person concerned has been verified by the death certificate verification monitoring means, sets / registers information indicating that the death certificate of the person concerned has been verified in the will data management information setting area, and when the death certificate of the person concerned has been set / registered in the will data management information setting area by the death certificate verification information setting / registration means, the operation suspension state for authorization of complex processing by the smart contract for will data management is released. The smart contract for managing wills has a means for setting and registering information in the will data management information setting area, and when the smart contract for managing wills has been set and registered in the will data management information setting area by the means for setting and registering information for releasing the operation stop state, it is possible to configure the smart contract for managing wills to have a function to notify the contact person who has been entrusted or authorized by the person concerned that the will data can be disclosed, thereby informing the person who has been entrusted or authorized by the person concerned that the will data can be disclosed.

[0050] Furthermore, the present invention provides a real-time digital asset guard service provision system that, through a combination of polynomial secret sharing encryption processing and a processing method based on the agreement information of will data access rights holders through multiple authentications, renders predetermined information meaningless, manages it in a distributed manner as files sorted into multiple points, and encrypts and manages index information for the distributed files. The personal information of the person concerned, the personal information of persons entrusted or authorized by the person concerned, and the will data set and registered in the will data management information setting area are rendered meaningless through a combination of polynomial secret sharing encryption processing and a processing method based on the agreement of will data access rights holders through multiple authentications in the real-time digital asset guard service provision system. The system is configured such that the data is distributed and managed as files sorted into multiple points, and the index information for these distributed files is managed in an encrypted state by the real-time digital asset protection service provider system. Subsequently, the personal information of the individual, the personal information of those authorized or permitted by the individual, and the will data set and registered in the will data management information setting area are deleted. By combining polynomial secret sharing encryption processing with a processing method based on bidirectional agreement between those with access rights to the will data (which complements the polynomial secret sharing encryption processing), it becomes possible to protect the data while simultaneously avoiding analysis of the data's destination address and index information, thereby achieving PQC (post-quantum cryptography) and solving the aforementioned problems regarding the protection of personal information. Furthermore, the real-time digital asset guarding service provision system makes it possible to manage personal information in a form that does not constitute personal information. This is achieved by using polynomial-based data mosaicization and polynomial secret sharing encryption to render the data meaningless, making the process irreversible. Additionally, by cutting the index information that records where the meaningless information is managed, the link to the actually managed information is severed, effectively making it equivalent to deleting the relevant information. Furthermore, copying this meaningless information becomes impossible for anyone other than those with access rights to the will data (those who have agreed to a processing method based on a two-way agreement regarding data preservation), and because the specified rights can be locked based on the designated content, it becomes possible to satisfy the requirements for enforceability against third parties. This enables the management of will data on-chain and allows for linking it with personal information managed by other personal information management service providers.

[0051] Furthermore, in the will data management service provision system of the present invention, preferably, the linked information consists of a predetermined personal information management service type number and an ID of personal information managed by the personal information management service provision system of that personal information management service type. This configuration makes it possible to link personal information managed by other personal information management service providers with personal information managed by other systems without revealing personal information to external parties.

[0052] Furthermore, in the will data management service provision system of the present invention, preferably, personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system and personal information managed by personal information management service provision systems of other personal information management service types (real-time digital asset guard service type, sub-personal information management service type) are linked via the linking information set and registered in the will data management information setting area. This configuration makes it possible to link personal information managed by other personal information management service providers through the black-box environment of the will data management information setting area in the real-time digital asset guard service provision system.

[0053] Furthermore, in the will data management service provision system of the present invention, preferably, personal information managed by the service provision system for managing the will data of the person concerned and personal information managed by other personal information management service provision systems of different types of personal information management services are linked via the linking information set and registered in the will data management information setting area. With this configuration, it becomes possible to disclose other personal information of the individual related to their will data, linked to the will data.

[0054] Furthermore, in the will data management service provision system of the present invention, preferably, if the linking information between personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system and personal information of other personal information management service types is set and registered in the will data management information setting area, then access rights (which can be set and registered on a per-personal information management service provision system basis for each personal information management service type) to personal information managed by the personal information management service provision system of the personal information management service type (core personal information management service type, sub-personal information management service type) linked to the personal information of the predetermined personal information management service type managed by the real-time digital asset guard service provision system are set and registered. With this configuration, those authorized to access the will data can access the personal information of the individual, which is managed by a designated personal information management service provider system linked to the individual's will data. It becomes possible to do so.

[0055] Furthermore, the will data management service provision system of the present invention preferably further includes a simplified information search key conversion means that converts personal information managed by a personal information management service provision system of a predetermined type of personal information management service into a simplified information search key using a predetermined secure computation in a bookbox environment, and a simplified information search means that searches personal information distributed and managed by the real-time protected digital asset guard service provision system using the simplified information search key converted by the simplified information search key conversion means, and the real-time protected digital asset guard service provision system has a simplified information search key addition means that converts personal information into a simplified information search key using a predetermined secure computation in a bookbox environment, encrypts it, and adds it to the distributed personal information and index information. With this configuration, it becomes possible to easily and confidentially determine whether or not personal information managed by the personal information management service provider system of a specified type of personal information management service for that individual is being managed in a distributed manner by the real-time protected digital asset guard service provider system, without having to go through the complex processing required to restore the personal information in the real-time protected digital asset guard service provider system.

[0056] Furthermore, the will data management service provision system of the present invention preferably includes a first personal information linking control means that, if, as a result of a search by the simplified information search means, there is no data in the personal information distributed and managed in the real-time protected digital asset guard service provision system that has a simplified information search key corresponding to the simplified information search key, the personal information managed by the personal information management service provision system of a predetermined personal information management service type is distributed and recorded by the real-time protected digital asset guard service provision system, an ID for the distributed and recorded personal information is created, set and registered in the will data management information setting area, and the ID for the personal information registered in the will data management information setting area is transmitted to the personal information management service provision system of the predetermined personal information management service type. With this configuration, even if the personal information managed by the personal information management service provider system of a specific type of personal information management service for that individual is not managed in a distributed manner by the real-time protected digital asset guard service provider system, it becomes possible to link that personal information with the personal information managed by the real-time protected digital asset guard service provider system.

[0057] Furthermore, the will data management service provision system of the present invention preferably includes a second personal information linking control means that, as a result of a search by the simplified information search means, if there is data in the personal information distributed and managed in the real-time protected digital asset guard service provision system that has a simplified information search key corresponding to the simplified information search key, sets and registers linking information consisting of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of the predetermined personal information management service type in the will data management information setting area, and transmits the ID of the personal information set and registered in the will data management information setting area to the personal information management service provision system of the predetermined personal information management service type. With this configuration, when personal information managed by a personal information management service provider system of a specified type of personal information management service for the individual concerned is managed in a distributed manner by a real-time protected digital asset guard service provider system, it becomes possible to link that personal information with personal information managed by the real-time protected digital asset guard service provider system.

[0058] Furthermore, in the will data management service provision system of the present invention, preferably, the simplified information retrieval key conversion means is configured to extract a predetermined number of digits of data from the beginning of personal information managed by the personal information management service provision system of the predetermined personal information management service type and convert them into the simplified information retrieval key by predetermined secure computation in a bookbox environment, and the simplified information retrieval means is configured to decode the simplified information retrieval key attached to personal information managed in a distributed manner by the real-time protected digital asset guard service provision system and to perform a search using the simplified information retrieval key converted by the simplified information retrieval key conversion means. With this configuration, it becomes possible to easily and confidentially determine whether or not personal information managed by a personal information management service provider system of a specified type of personal information management service for that individual is managed in a distributed manner by a real-time protected digital asset guard service provider system, without having to go through the complex processing required to restore personal information in the real-time protected digital asset guard service provider system.

[0059] Furthermore, the will data management service provision system of the present invention preferably further includes a smart contract for displaying a list of will data-related personal information, which extracts and displays as information that can be viewed in a list format the personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system, which is linked via the linking information set and registered in the will data management information setting area, and personal information managed by personal information management service provision systems of other personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type). With this configuration, those with access rights to the will data can view personal information such as financial account information, securities account information, contract information, and insurance information, which are managed by other personal information management service providers of the same person and are linked to the will data, as well as the core personal information of the person with access rights to the will data.

[0060] Furthermore, in the will data management service provision system of the present invention, preferably, the personal information managed by other personal information management service provision systems (real-time protected digital asset guard service type, sub-personal information management service type) that is linked to personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system via the linking information set and registered in the will data management information setting area is asset information of financial institutions (account information managed by financial institutions) and management address information of asset-like tokens. With this configuration, those authorized to access the will data will be able to view the asset information of the person concerned, such as financial institution information (account information managed by financial institutions), and the management address information of any tokens that have an asset value, all linked to the person's will data.

[0061] Furthermore, in the will data management service provision system of the present invention, preferably, personal information managed by other personal information management service provision systems (real-time digital asset guard service type, sub-personal information management service type) that is linked to personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system via the linking information set and registered in the will data management information setting area is contract information. With this configuration, those with access rights to the will data will be able to view the contract information of the person linked to that person's will data.

[0062] Furthermore, the will data management service provision system of the present invention preferably further includes a smart contract for displaying a list of will data-related contract information, which has a list display function that allows users to confirm the contents of the contract related to the person in question in the contract information, the effect of the contract, the validity period of the contract, etc. With this configuration, those authorized to access the will data will be able to view detailed information such as the content of the contracts associated with that person's will data, the validity of those contracts, and the duration of those contracts.

[0063] Furthermore, the will data management service provision system of the present invention preferably further includes a death certificate notification means that, when information indicating that the death certificate of the person concerned has been confirmed is set and registered in the will data management information setting area by the death certificate confirmation information setting and registration means, notifies the financial institutions and tax offices related to the person concerned, which are set and registered in the will data management information setting area as contact information of persons authorized or permitted by the person concerned, that the death certificate of the person concerned has been confirmed. This configuration makes it possible to file notifications with financial institutions and tax offices related to the individual concerned.

[0064] Furthermore, in the will data management service provision system of the present invention, preferably, the real-time protected digital asset guard service provision system is a unit that combines blockchain and file distributed management functions, etc., consisting of a group of nodes that combine nodes in multiple locations in different regions around the world, and is constructed by having multiple planets that form a single unit that constitutes a system for providing services that implement distributed smart contracts, server applications, etc., and is mainly a closed blockchain such as a private or consortium type, and is composed of at least one distributed ledger structure that is composed of multiple chains that may include a group of distributed ledgers and a public blockchain, etc., and based on the agreement information regarding the safekeeping of will data by the person with access rights to the will data obtained by the agreement information acquisition means, the personal information of the person, the personal information of the person who has been entrusted or authorized by the person, and the will data set and registered in the will data management information setting area are encrypted and polynomial secret sharing is used to encrypt the personal information of the person, the personal information of the person who has been entrusted or authorized by the person, and the will data. A means for encrypting and polynomial secret sharing to divide the data into multiple file data; a means for sorting the multiple file data divided by the encryption and polynomial secret sharing to sort them into one of multiple security points; a means for managing the destination information of the file data sorted by the security point sorting means in a black box environment; a means for modifying and distributing the file data sorted by the security point sorting means, and distributing the file data to multiple nodes of a distributed management file group established on the blockchain for file data that does not exceed the block size, and to multiple nodes of a distributed management file group separate from the blockchain for file data that exceeds the block size; and a means for creating, encrypting, and recording index information of the file data distributed and recorded by the modification and distributing recording means, and recording it on a specific node of the blockchain in a black box environment.Based on the agreement information obtained by the agreement information acquisition means regarding the restoration of the will data by the person with access rights to the will data, the index information decryption means decrypts the index information of the file data recorded in the index information creation, encryption, and recording means for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means; based on the index information decrypted by the index information decryption means, the file data extraction means extracts the modified and distributed recorded file data from multiple nodes of the distributed management file of the preservation destination blockchain and multiple nodes of a distributed management file separate from the blockchain, and restores it to its state before modification; and integrates and decrypts the fragmented file data extracted by the file data extraction means to restore the personal information of the person in question, the personal information of persons who have been commissioned or authorized by the person in question, and the will data before backup. Based on the agreement information obtained by the agreement information acquisition means regarding the deletion of will data by the person information / will data recovery means, and the agreement information obtained by the person information acquisition means regarding the deletion of will data by the person information access authority, a deletion processing index information decryption means decrypts the index information of the file data recorded in the index information creation / encryption / recording means for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means, a file data deletion means deletes the file data of a predetermined generation or earlier that has been modified and distributed recorded on multiple nodes of the distributed management file of the preservation destination blockchain and multiple nodes of a distributed management file separate from the blockchain, based on the index information decrypted by the deletion processing index information decryption means, and based on the agreement information obtained by the agreement information acquisition means regarding the deletion of will data by the person information / will data access authority,It includes a second file data deletion means for deleting information associated with a file data to be deleted, which is managed under a black box environment by the aforementioned preservation point sorting destination information management means. With this configuration, in managing personal information, the process of mosaicizing data using polynomials and the polynomial secret sharing encryption process that renders the data meaningless can be made irreversible. Furthermore, by cutting the index information that records where the meaningless information is managed, the link to the information actually being managed is severed, making it equivalent to deleting the relevant information. In this way, it becomes possible to realize the management of personal information in a form that is not personal information.

[0065] Furthermore, the will data management service provision system of the present invention preferably includes a will data digital certificate issuing means that, when the will data of the person concerned is restored via the real-time protected digital asset guard service provision system based on the agreement information regarding the restoration of the will data by the will data access authority obtained by the agreement information acquisition means, a digital certificate of the restored will data is issued to the lawyer who is the will data access authority. This configuration makes it easy to obtain a certificate of will data.

[0066] Therefore, according to the present invention, a will data management service provision system is obtained that uses blockchain technology to withstand evolving cyberattacks such as quantum computer cryptography analysis, ransomware via users, and insider attacks, and is superior in terms of cost, security strength, and processing convenience, in relation to the management of will data. The embodiments for carrying out the present invention will be described below with reference to the drawings.

[0067] First Embodiment Figure 1 is a schematic diagram illustrating the overall configuration of a will data management service provision system according to the first embodiment of the present invention. The will data management service provision system 1 of the first embodiment is constructed with a distributed ledger in blockchain or other distributed ledger technology, and a smart contract or server application for performing predetermined processing using data managed in the distributed ledger. For example, as shown in Figure 1, it includes a personal identification information management means 11 for authenticating persons with access rights to will data, a will data access rights authentication system 12, an agreement information acquisition means 13, will data management information 14, a will data management information setting acceptance means 15, a will data management information setting / registration means 16, a smart contract for will data management 17, a death certificate confirmation / preservation monitoring means 18, and a real-time protected digital asset guard service provision system 100.

[0068] Personal identification information management method 11 for authenticating persons with access rights to will data The identity verification information management means 11 for authenticating persons with access to will data is configured, for example, as shown in Figure 2, to manage identity verification information necessary for authenticating persons with access to will data who have the authority to back up or disclose will data.

[0069] Will Data Access Authority Authentication System 12 The will data access authorization holder authentication system 12 is configured to perform authentication for each will data access authorization holder based on the identity verification information for will data access authorization holder authentication managed by the identity verification information management means 11 for will data access authorization holder authentication, as shown in Figure 3, for example.

[0070] Agreement information acquisition means 13 The agreement information acquisition means 13 is configured, for example as shown in Figure 4, to acquire agreement information of will data access rights holders regarding the backup, restoration, and deletion of will data by will data access rights holders authenticated by the will data access rights holder authentication system 12.

[0071] Will data management information 14 The will data management information 14 includes the following information, for example, as shown in Figure 5. • Personal information of the person who created the will data 14a • The personal information ID14b of the individual, which is the personal information number linked to the personal information of the individual concerned. Regarding the safekeeping and disclosure of the will data of the person concerned, the personal information (14c) and contact information (14d) of the person who has been entrusted or authorized by the person concerned. • Personal information ID14e of a person who has been entrusted or authorized by the individual concerned. • Will data 14f • Linking information between personal information managed by a system that provides a service for managing the will data of the individual concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service providers (14g) • Monitoring information regarding whether the death certificate of the person in question has been confirmed (14 hours) • Information 14i regarding whether the operational suspension state has been released for the authorization of complex processing by the smart contract 17 for managing will data.

[0072] Will data management information setting reception method 15 The will data management information setting reception means 15 is configured, for example, as shown in Figure 6, to include a personal information setting reception means 15a for the person concerned, a personal information and contact information setting reception means 15b for a person who has been entrusted or authorized by the person concerned, and a will data setting reception means 15c.

[0073] Personal information setting request method 15a The personal information setting reception means 15a is configured to receive the setting of personal information from the individual concerned, for example, as shown in Figure 7.

[0074] Personal information and contact information settings of persons authorized or permitted by the individual concerned, reception method 15b The personal information and contact information setting acceptance means 15b of the person authorized by the individual is configured to accept the setting of personal information and contact information of the person authorized by the individual regarding the backup and disclosure of will data, for example, as shown in Figure 8.

[0075] Will data setting acceptance method 15c The will data setting reception means 15c is configured to receive the setting of will data from the person concerned, for example, as shown in Figure 9.

[0076] Will data management information setting / registration method 16 The will data management information setting / registration means 16 is configured, for example, as shown in Figure 10, to include the personal information setting / registration means 16a of the person concerned, the ID setting / registration means 16b of the personal information ID of the person concerned, the personal information and contact information setting / registration means 16c of the person concerned who has been entrusted or authorized by the person concerned, the ID setting / registration means 16d of the personal information ID of the person concerned who has been entrusted or authorized by the person concerned, the linking information setting / registration means 16e, the will data setting / registration means 16f, the death certificate confirmation information setting / registration means 16g, and the management smart contract operation stop state release setting / registration means 16h.

[0077] Personal information setting / registration method 16a The means 16a for setting and registering the individual's personal information is configured, for example, as shown in Figure 11, to set and register the individual's personal information received by the means 15a for setting the individual's personal information in the will data management information setting area under a black box environment in the real-time backup and restoration type digital asset guard service provision system 100.

[0078] Personal information ID setting / registration method 16b The ID setting and registration method 16b for the individual's personal information is configured to set and register, for example, the ID of the personal information that forms the personal information number linked to the individual's personal information, as shown in Figure 12, in the above-mentioned will data management information setting area.

[0079] Personal information and contact information settings / registration methods of persons authorized or permitted by the individual concerned 16c The personal information and contact information setting / registration means 16c of a person authorized or permitted by the individual is configured, for example as shown in Figure 13, to set and register the personal information and contact information of the person authorized or permitted by the individual, which has been received by the personal information and contact information setting reception means 15b of the individual, in the above-mentioned will data management information setting area.

[0080] 16d Method for setting and registering the ID of personal information of a person authorized or permitted by the individual concerned. The ID setting and registration means 16d for personal information of a person who has been entrusted or authorized by the individual concerned is configured, for example, as shown in Figure 14, to set and register the ID of the personal information of the person who has been entrusted or authorized by the individual concerned regarding the backup and disclosure of the individual's personal information and will data in the will data management information setting area.

[0081] Linking information setting / registration method 16e The linking information setting / registration means 16e is configured, for example as shown in Figure 15, to set and register linking information between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems in the will data management information setting area.

[0082] Will data setting / registration method 16f The will data setting / registration means 16f is configured, for example as shown in Figure 16, to set and register the will data received from the person by the will data setting reception means 15c in the will data management information setting area.

[0083] Death certificate confirmation information setting / registration method 16g The death certificate confirmation information setting / registration means 16g is configured, for example as shown in Figure 17, to set and register information indicating that the death certificate of the person in question has been confirmed when the death certificate confirmation monitoring means 18 confirms the death certificate of the person in question.

[0084] Management smart contract operation deactivation setting / registration method 16h The management smart contract operation stop state release setting / registration means 16h is configured, for example as shown in Figure 18, to set / register information to the will data management information setting area when the death certificate of the person concerned is set / registered in the will data management information setting area by the death certificate confirmation information setting / registration means 16g, information to release the operation stop state regarding the authorization of the complex processing by the will data management smart contract 17.

[0085] Smart contract 17 for managing will data The smart contract 17 for managing will data is configured to have the following functions, for example, as shown in Figure 19. (17-1) When the information to release the operation stop state of the management smart contract is set and registered in the above-mentioned will data management information setting area by the management smart contract operation stop state release setting / registration means 16h, a function to notify the contact person who has been commissioned or authorized by the person concerned that the will data can be disclosed.

[0086] Death certificate verification monitoring method 18 The death certificate verification monitoring means 18 is configured to monitor whether the death certificate of the person in question has been verified, for example, as shown in Figure 20.

[0087] Linking information 14g The linked information 14g consists, for example, as shown in Figure 21, a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of that personal information management service type.

[0088] Furthermore, in the will data management service provision system 1 of the first embodiment, as shown in Figure 22, for example, personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100 and personal information managed by personal information management service provision systems of other personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type) are linked via linking information 14g set and registered in the will data management information setting area.

[0089] Furthermore, in the will data management service provision system 1 of the first embodiment, as shown in Figure 23, for example, personal information managed by the service provision system that manages the will data of the person concerned and personal information managed by other personal information management service provision systems of different personal information management service types are linked via the linking information 14g set and registered in the will data management information setting area.

[0090] Furthermore, the will data management service provision system 1 of the first embodiment is configured such that, for example as shown in Figure 24, if the linking information 14g between personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100 and personal information of other personal information management service types is set and registered in the will data management information setting area, then access rights (which can be set and registered per personal information management service provision system of a personal information management service type) to personal information managed by the personal information management service provision system of the personal information management service type (core personal information management service type, sub personal information management service type) linked to the personal information of the predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100 are set and registered.

[0091] Furthermore, the will data management service provision system 1 of the first embodiment is configured to further include, for example, a simplified information search key conversion means 21, a simplified information search means 22, a first personal information linking control means 23, and a second personal information linking control means 24, as shown in Figure 1. In addition, the real-time digital asset guard service provision system 100 is configured to include, for example, a simple information retrieval key addition means 25, as shown in Figure 35.

[0092] Simplified information retrieval key conversion means 21 The simplified information retrieval key conversion means 21 is configured, for example, as shown in Figure 25, to convert personal information managed by a personal information management service provision system of a predetermined personal information management service type into a simplified information retrieval key using a predetermined secure computation in a bookbox environment. More specifically, the simplified information retrieval key conversion means 21 is configured to extract a predetermined number of digits of data from the beginning of personal information managed by a personal information management service provision system of a predetermined type of personal information management service, and convert them into a simplified information retrieval key using a predetermined secure calculation in a bookbox environment.

[0093] Simplified information retrieval means 22 The simplified information retrieval means 22 is configured to retrieve personal information managed in a distributed manner by the real-time digital asset guard service provision system 100, for example, as shown in Figure 26, using the simplified information retrieval key converted by the simplified information retrieval key conversion means 21. More specifically, the simplified information retrieval means 22 is configured to decode the simplified information retrieval key attached to personal information managed in a distributed manner by the real-time digital asset guard service provision system 100, and to perform a search using the simplified information retrieval key converted by the simplified information retrieval key conversion means 21.

[0094] First personal information linking control means 23 The first personal information linking control means 23 is configured such that, as shown in Figure 27, if, as a result of a search by the simplified information search means 22, there is no data with a simplified information search key corresponding to the above-mentioned simplified information search key among the personal information managed in a distributed manner in the real-time digital asset guard service provision system 100, the personal information managed by the personal information management service provision system of a predetermined personal information management service type is distributed and recorded by the real-time digital asset guard service provision system 100, an ID for the distributed and recorded personal information is created and set and registered in the above-mentioned will data management information setting area, and the ID of the personal information registered in the above-mentioned will data management information setting area is transmitted to the personal information management service provision system of the predetermined personal information management service type.

[0095] Second personal information linking control means 24 The second personal information linking control means 24 is configured such that, as shown in Figure 28, if, as a result of a search by the simplified information search means 22, data having a simplified information search key corresponding to the above-mentioned simplified information search key exists among the personal information managed in a distributed manner in the real-time protected digital asset guard service provision system 100, it sets and registers linking information 14g consisting of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of the predetermined personal information management service type in the will data management information setting area, and transmits the ID of the personal information set and registered in the will data management information setting area to the personal information management service provision system of the predetermined personal information management service type.

[0096] Simple information retrieval key addition means 25 The simplified information retrieval key attachment means 25 is configured, for example as shown in Figure 29, to attach to personal information and index information managed in a distributed manner in the real-time digital asset guard service provision system 100 by converting personal information into a simplified information retrieval key using a predetermined secure computation in a bookbox environment, and then encrypting and adding it.

[0097] Furthermore, the will data management service provision system 1 of the first embodiment is configured to further include, for example, a smart contract 26 for displaying a list of personal information related to will data and a smart contract 27 for displaying a list of contract information related to will data, as shown in Figure 1.

[0098] Smart contract 26 for displaying a list of personal information related to will data. The smart contract 26 for displaying a list of personal information related to will data is configured to have the following functions, for example, as shown in Figure 30. (26-1) A function to extract and display, as a list of personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100, which is linked via the linked information 14g set and registered in the above will data management information setting area, and personal information managed by other personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type) personal information management service provision systems.

[0099] Smart contract 27 for displaying a list of contract information related to will data. The smart contract 27 for displaying a list of contract information related to will data is configured to have the following functions, for example, as shown in Figure 31. (27-1) A list display function that allows users to check the contents of contracts related to the person in question in the above contract information, the validity of such contracts, the validity period of such contracts, etc.

[0100] In addition, in the will data management service provision system 1 of the first embodiment, preferably, the personal information managed by other personal information management service provision systems (real-time protected digital asset guard service type, sub-personal information management service type) that is linked to personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100 via the linking information 14g set and registered in the will data management information setting area, is asset information of financial institutions, etc. (account information managed by financial institutions), and management address information of asset-like tokens.

[0101] Furthermore, in the will data management service provision system 1 of the first embodiment, preferably, personal information managed by other personal information management service provision systems (real-time digital asset guard service type, sub-personal information management service type) that is linked to personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system 100 via the linking information 14g set and registered in the will data management information setting area is contract information.

[0102] Furthermore, the will data management service provision system 1 of the first embodiment is configured to further include a death certificate notification means 28, as shown in Figure 1, for example.

[0103] Death certificate notification method 28 The death certificate notification means 28 is configured, for example as shown in Figure 32, to notify financial institutions and tax offices related to the person who has been entrusted or authorized by the person, of the confirmation of the person's death certificate, when the information that the person's death certificate has been confirmed is set and registered in the will data management information setting area by the death certificate confirmation information setting / registration means 16g.

[0104] Furthermore, the will data management service provision system 1 of the first embodiment is configured to further include a will data digital certificate issuance means 29, as shown in Figure 1, for example.

[0105] Will data digital certificate issuance method 29 The will data digital certificate issuance means 29 is configured such that, for example as shown in Figure 33, when the will data of the person in question is restored via the real-time protected digital asset guard service provision system 100, based on the agreement information regarding the restoration of the will data by the will data access authority obtained by the agreement information acquisition means 13, the will data digital certificate is issued to the lawyer who is the will data access authority when the will data of the person in question is restored via the real-time protected digital asset guard service provision system 100.

[0106] Real-time digital asset protection service provision system 100 The real-time digital asset guard service provision system 100 is configured, for example as shown in Figure 34, to perform meaningless processing on predetermined information by combining polynomial secret sharing encryption processing and a processing method based on the agreement information of persons authorized to access will data through multiple authentications, and to manage the information in a distributed manner as files sorted into multiple points, while also encrypting and managing the index information of the distributed files.

[0107] More specifically, the real-time digital asset guard service provision system 100 is configured, for example, as shown in Figure 35, to include an encryption / polynomial secret sharing / decomposition means 101, a security point sorting means 102, a security point sorting destination information management means 103, an modification / distributed recording means 104, an index information creation / encryption / recording means 105, an index information decryption means 106, a file data extraction means 107, a personal information / will data recovery means 108, an index information decryption means 109 during deletion processing, a file data deletion means 110, and a second file data deletion means 111.

[0108] Encryption / Polynomial Secret Sharing and Splitting Method 101 The encryption / polynomial secret sharing partitioning means 101 is configured, for example as shown in Figure 36, to partition the personal information of the person in question, the personal information of persons authorized by the person in question, and the will data, which are set and registered in the will data management information setting area, into multiple file data by encryption / polynomial secret sharing, based on the agreement information regarding the safekeeping of the will data obtained by the person with access rights to the will data obtained by the agreement information acquisition means 13.

[0109] Preservation point sorting method 102 The preservation point sorting means 102 is configured, for example as shown in Figure 37, to sort multiple file data partitioned by the encryption / polynomial secret sharing partitioning means 101 by associating them with one of multiple preservation points.

[0110] Preservation point sorting destination information management means 103 The preservation point sorting destination information management means 103 is configured to manage the sorting destination information of file data sorted by the preservation point sorting means 102 in a black box environment, for example, as shown in Figure 38.

[0111] Modification / distributed recording means 104 The modification and distributed recording means 104 is configured to modify the file data sorted by the preservation point sorting means 102, as shown in Figure 39, for example, and to distribute and record file data that does not exceed the block size to multiple nodes of a distributed management file group provided on the blockchain, and file data that exceeds the block size to multiple nodes of a distributed management file group separate from the blockchain.

[0112] Index information creation, encryption, and recording means 105 The index information creation, encryption, and recording means 105 is configured, for example as shown in Figure 40, to create and encrypt index information for file data that is distributed and recorded by the modification and distributed recording means 104, and to record it on a specific node of the blockchain in a black box environment.

[0113] Index information decoding means 106 The index information decryption means 106 is configured, for example as shown in Figure 41, to decrypt the index information of the file data recorded in the index information creation, encryption, and recording means 105 for each group of file data associated with the information of each said preservation point, which is managed in a black box environment by the preservation point sorting destination information management means 103, based on the agreement information regarding the restoration of the will data by the person with access rights to the will data, which has been obtained by the agreement information acquisition means 13.

[0114] File data extraction means 107 The file data extraction means 107 is configured, for example as shown in Figure 42, to extract the modified and distributed recorded file data from multiple nodes of the distributed management file of the blockchain that is the storage destination, and multiple nodes of a distributed management file separate from the blockchain, based on the index information decoded by

[0115] 108 Methods for Recovering Personal Information and Will Data The personal information / will data recovery means 108 is configured to integrate and decrypt multiple fragmented file data extracted by the file data extraction means 107, as shown in Figure 43, to restore the personal information of the individual in question, the personal information of a person who has been commissioned or authorized by the individual, and the will data before backup.

[0116] Deletion process index information decryption means 109 The deletion process index information decryption means 109 is configured, for example as shown in Figure 44, to decrypt the index information of the file data recorded in the index information creation, encryption, and recording means 105 for each group of file data associated with the information of each said preservation point, which is managed in a black box environment by the preservation point sorting destination information management means 103, based on the agreement information regarding the deletion of the will data by the person with access rights to the will data, which has been obtained by the agreement information acquisition means 13.

[0117] File data deletion means 110 The file data deletion means 110 is configured, for example as shown in Figure 45, to delete the file data from a predetermined generation prior to the modified and distributed recording on multiple nodes of the distributed management file of the blockchain that is the storage destination corresponding to the file data, and on multiple nodes of a distributed management file that is separate from the blockchain, based on the index information decrypted by the index information decryption means 109 during the deletion process.

[0118] Second file data deletion means 111 The second file data deletion means 111 is configured, for example as shown in Figure 46, to delete the information of the preservation point associated with the file data to be deleted, which is managed in a black box environment by the preservation point sorting destination information management means 103, based on the agreement information obtained by the agreement information acquisition means 13 regarding the deletion of the will data by the person with access rights to the will data.

[0119] Regarding the linking of personal information managed by multiple personal information management services. Here, we will explain how personal information managed by multiple personal information management services in the will data management service provision system 1 of the first embodiment is linked to each other. When multiple personal information management service provision systems exist and personal information is managed independently within each system, the linking of personal information between them is configured as follows: In the will data management service provision system 1 of the first embodiment, personal information of a predetermined personal information management service type Kn (where n is a positive integer) that is distributed and managed by the real-time protected digital asset guard service provision system 100, which is a core personal information management service provision system that distributes and manages core information that identifies an individual, such as date of birth, name, surname, gender, and address, as well as contact information, KYC certificates / contracts / qualification certificates and other personal information, and personal information managed by the personal information management service provision system A of other personal information management service types (core personal information management service type, sub-personal information management service type) Km (where m is a positive integer other than n) are linked by linking information set and registered in the will data management information setting area of ​​the real-time protected digital asset guard service provision system 100, which is a core personal information management service provision system. The linked information consists of a personal information management service type number and the ID of the personal information managed by the personal information management service provider system for that personal information management service type.

[0120] Furthermore, in the will data management service provision system 1 of the first embodiment, the linking information between personal information of a predetermined personal information management service type Kn (where n is a positive integer), which is distributed and managed by the real-time protected digital asset guard service provision system 100 as the core personal information management service provision system, and personal information managed by the personal information management service provision system A of another personal information management service type Km (where m is a positive integer other than n), is the will data management information in the real-time protected digital asset guard service provision system 100 as the core personal information management service provision system. If set and registered in the settings area, access rights (which can be set and registered per personal information management service provider system for each personal information management service type) are set and registered to personal information of a predetermined personal information management service type Kn (where n is a positive integer) that is distributed and managed by the real-time protected digital asset guard service provider system 100 as the core personal information management service provider system, and to personal information managed by the personal information management service provider system A of the personal information management service type (core personal information management service type, sub-personal information management service type) Km (where m is a positive integer other than n).

[0121] Figure 47 is an explanatory diagram showing an example of how personal information managed by multiple personal information management services is linked to each other in the will data management service provision system 1 of the first embodiment. In the example shown in Figure 47, the first linking information for personal information distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system consists of "0-1111," which is a hyphenated combination of the first core personal information management service type number "0" and the ID "1111" of the personal information of the individual distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system. This linking information can be set and registered in the will data management information setting area by the linking information setting / registration means 16e by distributing and recording the personal information of the individual in the real-time protected digital asset guard service provision system 100.

[0122] Furthermore, the second linking information for personal information distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system consists of "8-12345," which is a hyphenated combination of the second core personal information management service type number "8" and the ID "12345" of another person's personal information distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system. This linking information can be set and registered in the will data management information setting area by the linking information setting / registration means 16e by distributing and recording personal information of a person who has been entrusted or authorized by the person concerned to back up and disclose the person's will data in the real-time protected digital asset guard service provision system 100.

[0123] Furthermore, the third linking information for personal information distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system consists of "9-1111," which is a hyphenated combination of the third core personal information management service type number "9" and the ID "1111" of the personal information of the individual distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system. This linking information can be set and registered in the will data management information setting area by the linking information setting / registration means 16e by distributing and recording the updated personal information of the individual in the real-time protected digital asset guard service provision system 100.

[0124] Personal information includes core information that identifies an individual, such as date of birth, name, surname, gender, and address, as well as contact information and information such as KYC certification / contract / qualification certificates, but this information may change. In the example in Figure 47, in such cases, the linking information for the same person's changed personal information, which is distributed and recorded by the Real-Time Preservation Type Digital Asset Guard Service Provision System 100 as a core personal information management service provision system, is configured to be created using the ID of the same person's personal information and a different core personal information management service type number.

[0125] Furthermore, in the example shown in Figure 47, the sub-personal information management service provision system includes a first sub-personal information management service provision system for managing first bank account information, a second sub-personal information management service provision system for managing second bank account information, a third sub-personal information management service provision system for managing securities account information, a fourth sub-personal information management service provision system for managing insurance contract information, a fifth sub-personal information management service provision system for managing career information, a sixth sub-personal information management service provision system for managing qualification information, and a seventh sub-personal information management service provision system for managing will information. The will data management service provision system 1 of the first embodiment corresponds to the seventh sub-personal information management service provision system described above.

[0126] The linking information for the first bank account information, managed by the first sub-personal information management service provider system which manages the first bank account information, consists of "11-2222," which is a hyphenated combination of the first sub-personal information management service type number "11" and the ID "2222" of the personal information of the individual managed by the first sub-personal information management service provider system. Furthermore, the linking information for the second bank account information, managed by the second sub-personal information management service provision system that manages the second bank account information, consists of "12-3333," which is formed by combining the second sub-personal information management service type number "12" and the ID of the individual's personal information managed by the second sub-personal information management service provision system, "3333," with a hyphen. Furthermore, the linking information for the third sub-personal information management service provider system that manages securities account information consists of "13-4444," which is formed by hyphenating the third sub-personal information management service type number "13" and the ID "4444" of the personal information of the individual managed by the third sub-personal information management service provider system. Furthermore, the linking information for the fourth sub-personal information management service provision system that manages insurance contract information consists of "14-5555," which is formed by hyphenating the fourth sub-personal information management service type number "14" and the ID "5555" of the personal information of the individual managed by the fourth sub-personal information management service provision system. Furthermore, the linking information for the fifth sub-personal information management service provision system that manages career information consists of "15-6666," which is formed by hyphenating the fifth sub-personal information management service type number "15" and the ID "6666" of the personal information of the individual managed by the fifth sub-personal information management service provision system. Furthermore, the linking information for the sixth sub-personal information management service provision system that manages qualification information consists of "16-7777," which is formed by hyphenating the sixth sub-personal information management service type number "16" and the ID "7777" of the personal information of the individual managed by the sixth sub-personal information management service provision system. Furthermore, the linking information for the seventh sub-personal information management service provision system that manages will information consists of "17-8888," which is formed by hyphenating the seventh sub-personal information management service type number "17" and the ID "8888" of the personal information of the individual managed by the seventh sub-personal information management service provision system.

[0127] Then, in the example in Figure 47, the following linkage information is linked to the linkage information, which consists of "0-1111" formed by combining the core personal information management service type "0" and the personal information ID "1111" with a hyphen, managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as the core personal information management service provision system: "11-2222" for the first bank account information managed by the first sub-personal information management service provision system, "12-3333" for the second bank account information managed by the second sub-personal information management service provision system, "13-4444" for the securities account information managed by the third sub-personal information management service provision system, and the linkage information for the insurance contract information managed by the fourth sub-personal information management service provision system. The following information is set and registered in the above-mentioned will data management information setting area of ​​the real-time protected digital asset guard service provision system 100, which serves as the core personal information management service provision system: “14-5555”, “15-6666” linking information for career information managed by the fifth sub-personal information management service provision system, “16-7777” linking information for qualification information managed by the sixth sub-personal information management service provision system, and “17-8888” linking information for will information managed by the seventh sub-personal information management service provision system. Furthermore, as linked information associated with the linked information consisting of "8-12345," which is a hyphenated combination of the core personal information management service type "8" and the ID of another person's personal information "12345," both managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, the linked information "0-1111" concerning the individual's personal information, which is managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, and the linked information "9-1111" concerning the individual's personal information, which is managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, are set and registered in the above-mentioned will data management information setting area of ​​the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system. Furthermore, as linked information associated with the linked information consisting of "9-1111," which is a hyphenated combination of the core personal information management service type "9" and the ID of the individual's personal information "1111," both managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, the linked information "0-1111" for the individual's personal information managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, and the linked information "8-12345" for the personal information of others, both managed in a distributed manner by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, are set and registered in the above-mentioned will data management information setting area of ​​the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system.

[0128] Methods for linking personal information managed by the personal information management service provision system for each type of personal information management service. In the will data management service provision system 1 of the first embodiment, personal information managed by a personal information management service provision system of a certain sub-personal information management service type and personal information managed by a personal information management service provision system of another sub-personal information management service type are linked via linking information set and registered in the will data management information setting area of ​​the real-time protected digital asset guard service provision system 100, which serves as the core personal information management service provision system.

[0129] Furthermore, in the will data management service provision system 1 of the first embodiment, the linking of personal information distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system with personal information managed by personal information management service provision systems of sub-personal information management service types, and the linking of personal information of one personal information management service type with personal information of another personal information management service type, which is distributed and managed by the real-time protected digital asset guard service provision system 100 as a core personal information management service provision system, is configured to be done as follows.

[0130] Figure 48 is an explanatory diagram showing an example of how to link personal information managed by each personal information management service provision system for each type of personal information management service in the will data management service provision system 1 of the first embodiment. In the will data management service provision system 1 of the first embodiment, the simplified information retrieval key conversion means 21 converts personal information transferred from a personal information management service provision system of a predetermined sub-personal information management service type into a simplified information retrieval key using a predetermined secure computation in a bookbox environment, without compiling personal information that is distributed and managed by the real-time protected digital asset guard service provision system 100 as the core personal information management service provision system. Next, the simplified information retrieval means 22 searches the personal information distributed and managed by the real-time protected digital asset guard service provision system 100, which serves as the core personal information management service provision system, using the converted simplified information retrieval key.

[0131] If the search by the simplified information search means 22 does not find any data with a simplified information search key corresponding to the converted simplified information search key, the first personal information linking control means 23 distributes and records the personal information transferred from the personal information management service provision system of a predetermined sub-personal information management service type in the real-time protected digital asset guard service provision system 100, which is the core personal information management service provision system. It also creates an ID for the distributed personal information and sets and registers it in the will data management information setting area of ​​the real-time protected digital asset guard service provision system 100, which is the core personal information management service provision system. The ID of the personal information registered in the will data management information setting area of ​​the real-time protected digital asset guard service provision system 100, which is the core personal information management service provision system, is then sent back to the personal information management service provision system of the predetermined sub-personal information management service type.

[0132] On the other hand, if there is data in the personal information distributed and managed in the Real-Time Preservation Type Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, that has a simplified information search key corresponding to the converted simplified information search key, the second personal information linking control means 24 sets and registers linking information consisting of a predetermined sub-personal information management service type number and the ID of the personal information managed by the personal information management service provision system of the predetermined sub-personal information management service type in the will data management information setting area of ​​the Real-Time Preservation Type Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, in the will data management information setting area of ​​the Real-Time Preservation Type Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, in the will data management information setting area of ​​the predetermined sub-personal information management service type, which is then sent back to the personal information management service provision system of the predetermined sub-personal information management service type.

[0133] The simplified information retrieval key is obtained by extracting the initial portion of the personal information data distributed and managed in the real-time protected digital asset guard service provision system 100, which serves as the core personal information management service provision system, and then converting it using a predetermined secure computation in a predetermined bookbox environment. The data at the beginning of the personal information used as the simplified information retrieval key is, for example, if it is date of birth / initials / first address, the extracted data would be "196406K". The simplified information retrieval means 22 obtains the simplified information retrieval key by converting such data into a simple encryption using secure computation in a bookbox environment.

[0134] Regarding "inquiry search" using a simplified information search key separate from the index information of the Real-Time Preservation Type Digital Asset Guard Service Provision System 100 as a Core Personal Information Management Service. The data recording area of ​​the real-time digital asset guard service provision system 100, which provides core personal information management services, consists of a file data distributed management area that records the protected data to be evacuated in a distributed manner, and an index information recording area that records index information for the distributed file data. Furthermore, the distributed file data is sorted and associated with one of several preservation points. Furthermore, when restoring the preserved data, it is necessary to extract index information for each group of file data associated with the information of the preserved points, which are sorted according to multiple preserved points; decode the extracted index information; extract the file data that is managed in a distributed manner based on the decoded index information; and then integrate and decode it. However, if the combination of index information to be extracted is incorrect, the preserved data cannot be reconstructed. However, the inventor of this case considered that, among the preservation data managed by the real-time preservation type digital asset guard service provision system 100, which serves as the core personal information management service provision system, the preservation data used for managing personal information could be easily retrieved by information retrieval using a "simplified information retrieval key" in response to inquiries about personal information from the sub-personal information management service provision system. In the first place, important information includes personal information, asset information, transaction information, and contract information, each of which relates to an individual. However, the real-time digital asset guarding service provision system developed by the inventor in this case has a configuration that includes storage functionality, and access to detect whether or not personal information is managed in a distributed manner is not easy.

[0135] However, in the will data management service provision system 1 of the first embodiment, the simplified information search key addition means 25 adds a simplified information search key, encrypted using a simple encryption method rather than secret sharing, to the distributed management of the preservation data and index information in the real-time preservation type digital asset guard service provision system 100, which serves as the core personal information management service provision system. The simplified information search key conversion means 21 then searches using the simplified information search key, making it easier to access and detect whether or not the personal information is distributedly managed. Alternatively, the simplified information retrieval key may be set in the beginning portion of the preservation data recording area, prior to the preservation data itself. For example, if the simplified information retrieval key is 20 digits long, the first 20 digits of the preservation data recording area can be encrypted using a simple encryption method (rather than secret sharing) and combined with the preservation data. Then, when a search request for personal information is received from the sub-personal information management service provision system, the simplified information search means 22 retrieves the portion corresponding to the simplified information search key from the blockchain or the like, decrypts the simplified information search key which is encrypted in memory, and then the real-time protected digital asset guard service provision system 100, which is the core personal information management service provision system, matches the decrypted simplified information search key with the simplified information search key converted using the personal information from the sub-personal information management service provision system that made the search request.

[0136] If data with a simple information search key exists in the real-time digital asset guard service provision system 100, which serves as the core personal information management service provision system, and the ID of personal information for the same person is registered in the will data management information setting area of ​​the real-time digital asset guard service provision system 100, which serves as the core personal information management service provision system, the second personal information linking control means 24 sends the ID of the personal information registered in the predetermined area back to the sub-personal information management service provision system. If no data with a "simple information search key" exists in the Real-Time Preservation Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, and the ID of personal information for the same person is not registered in the above-mentioned will data management information setting area in the Real-Time Preservation Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, the first personal information linking control means 23 distributes and records the personal information for which a search request has been made from the sub-personal information management service provision system in the Real-Time Preservation Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, creates an ID for the personal information, and registers it in the above-mentioned will data management information setting area in the Real-Time Preservation Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system. Then, the ID of the personal information registered in the above-mentioned will data management information setting area in the Real-Time Preservation Digital Asset Guard Service Provision System 100, which serves as the core personal information management service provision system, is sent back to the sub-personal information management service.

[0137] Next, the processing flow using the will data management service provision system 1 of the first embodiment configured as described above will be explained with reference to the drawings as appropriate.

[0138] (S1) Procedures before the person's death (Figures 49, 50) (S1-1) Acceptance of settings for will data management information (Figure 49) (S1-1-1) Acceptance of personal information settings The method 15a for receiving the setting of the individual's personal information accepts the setting of the individual's personal information from the individual concerned.

[0139] (S1-1-2) Acceptance of personal information and contact information settings by persons authorized or permitted by the individual concerned. The personal information and contact information setting acceptance method 15b of the person authorized by the individual accepts the setting of personal information and contact information of the person authorized by the individual regarding the backup and disclosure of will data.

[0140] (S1-1-3) Acceptance of will data settings The will data setting acceptance method 15c accepts the setting of will data from the person concerned.

[0141] (S1-2) Setting and registering will data management information (Figure 50) (S1-2-1) Setting and registering personal information The personal information setting / registration means 16a sets and registers the personal information of the individual received by the personal information setting acceptance means 15a in the will data management information setting area under a black box environment in the real-time backup / restoration type digital asset guard service provision system 100.

[0142] (S1-2-2) Setting and registering the ID of the individual's personal information The method 16b for setting and registering the ID of the individual's personal information involves setting and registering the ID of the personal information, which is the personal information number linked to the individual's personal information, in the above-mentioned will data management information setting area.

[0143] (S1-2-3) Setting and registering personal information and contact details of persons authorized or permitted by the individual concerned. The personal information and contact information setting / registration means 16c of a person authorized or permitted by the person concerned sets and registers the personal information and contact information of the person authorized or permitted by the person concerned, which has been received by the personal information and contact information setting reception means 15b of the person concerned, in the above-mentioned will data management information setting area.

[0144] (S1-2-4) Setting and registering the ID of personal information of a person who has been commissioned or authorized by the individual concerned. The method 16d for setting and registering the ID of the personal information of a person who has been entrusted or authorized by the individual concerned, sets and registers the ID of the personal information of the person who has been entrusted or authorized by the individual concerned regarding the backup and disclosure of the individual's personal information and will data in the above-mentioned will data management information setting area.

[0145] (S1-2-5) Linking information setting and registration The linking information setting / registration method 16e sets and registers linking information between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems in the above will data management information setting area.

[0146] (S1-2-6) Will data setting and registration The will data setting / registration means 16f sets and registers the will data received from the person concerned by the will data setting reception means 15c in the will data management information setting area.

[0147] (S1-3) Monitoring of whether or not a death certificate has been confirmed (Figure 50) The death certificate verification monitoring device 18 monitors whether the death certificate of the person in question has been verified.

[0148] (S2) Procedures after the person's death (Figures 51 and 52) (S2-1) Setting and registering death certificate confirmation information The death certificate confirmation information setting / registration means 16g sets and registers information indicating that the death certificate of the person concerned has been confirmed in the will data management information setting area when the death certificate confirmation monitoring means 18 confirms the death certificate of the person concerned.

[0149] (S2-2) Setting and registering the deactivation of the management smart contract. The management smart contract operation stop status release setting / registration means 16h sets and registers information to release the operation stop status for the authorization of the complex processing by the smart contract for will management 17 in the will data management information setting area when the death certificate of the person concerned is set and registered in the will data management information setting area by the death certificate confirmation information setting / registration means 16g.

[0150] (S2-3) Notification that the will data can be disclosed to the contact person authorized by the person concerned. When the smart contract 17 for managing will data has its operation stop status release information set and registered in the will data management information setting area by the smart contract operation stop status release setting / registration means 16h, it notifies the contact person who has been entrusted or authorized by the person concerned that the will data can be disclosed.

[0151] (S2-4) Notification of death certificate When the death certificate notification means 28 sets and registers information in the will data management information setting area that the death certificate of the person concerned has been confirmed by the death certificate confirmation information setting / registration means 16g, it notifies the financial institutions and tax offices related to the person concerned, which are set and registered in the will data management information setting area as contact persons authorized or permitted by the person concerned, that the death certificate of the person concerned has been confirmed.

[0152] (S2-5) Issuance of Digital Certificate of Will Data The will data digital certificate issuing means 29 issues a digital certificate for the restored will data to the lawyer who has access to the will data when the will data is restored via the real-time protected digital asset guard service provision system 100, based on the agreement information obtained by the agreement information acquisition means 13 regarding the restoration of the will data by the will data access authority.

[0153] (S3) Flowchart for preserving personal information related to the will data of the person before their death (Figures 53 and 54) (S3-1) Authentication of the person authorized to access the will data The will data access authority authentication system 12 performs authentication for each will data access authority based on the identity verification information for will data access authority authentication managed by the identity verification information management means 11 for will data access authority authentication.

[0154] (S3-2) Acquisition of Agreement Information The agreement information acquisition means 13 acquires agreement information from will data access holders regarding the backup of will data, which has been authenticated by the will data access holder authentication system 12.

[0155] (S3-3) Encryption and Polynomial Secret Sharing / Partition The encryption / polynomial secret sharing partitioning means 101, based on the agreement information regarding the safekeeping of will data obtained by the person with access rights to the will data through the agreement information acquisition means 13, partitions the personal information of the person in question, the personal information of persons who have been commissioned or authorized by the person in question, and the will data into multiple file data using encryption / polynomial secret sharing, as set and registered in the will data management information setting area.

[0156] (S3-4) Sorting of maintenance points The preservation point sorting means 102 sorts the multiple file data that have been separated by the encryption / polynomial secret sharing partitioning means 101 by associating them with one of the multiple preservation points. The preservation point sorting destination information management means 103 manages the sorting destination information of file data sorted by the preservation point sorting means 102 in a black box environment.

[0157] (S3-5) Modified / Distributed Records The modification and distributed recording means 104 modifies the file data sorted by the preservation point sorting means 102, and distributes the file data that does not exceed the block size to multiple nodes of a distributed management file group established on the blockchain, and the file data that exceeds the block size to multiple nodes of a distributed management file group separate from the blockchain.

[0158] (S3-6) Index information creation, encryption, and recording The index information creation, encryption, and recording means 105 creates and encrypts index information for file data that is distributed and recorded by the modification and distributed recording means 104, and records it on a specific node of the blockchain in a black box environment.

[0159] (S4) Flowchart of the restoration process for disclosing the testator's will data after their death (Figures 55 and 56) (S4-1) Authentication of the person authorized to access the will data The will data access authority authentication system 12 performs authentication for each will data access authority based on the identity verification information for will data access authority authentication managed by the identity verification information management means 11 for will data access authority authentication.

[0160] (S4-2) Acquisition of Agreement Information The agreement information acquisition means 13 acquires agreement information of will data access holders regarding the restoration of will data by will data access holders authenticated by the will data access holder authentication system 12.

[0161] (S4-3) Decryption of index information The index information decryption means 106 decrypts the index information of the file data recorded in the index information creation, encryption, and recording means 105 for each group of file data associated with the information of each said preservation point, which is managed in a black box environment by the preservation point sorting destination information management means 103, based on the agreement information regarding the restoration of the will data by the person with access rights to the will data obtained by the agreement information acquisition means 13.

[0162] (S4-4) Extracting file data The file data extraction means 107 extracts the modified and distributed recorded file data from multiple nodes of the distributed management file of the blockchain that is the storage destination corresponding to the file data, and from multiple nodes of a distributed management file that is separate from the blockchain, based on the index information decoded by

[0163] (S4-5) Recovery of personal information and will data The personal information / will data recovery means 108 integrates and decrypts multiple fragmented file data extracted by the file data extraction means 107 to restore the personal information of the individual concerned, the personal information of a person entrusted or authorized by that individual, and the will data to their original state before backup.

[0164] (S5) Other processing - Flowchart of the process of linking personal information managed by multiple personal information management services (Figures 57 and 58) (S5-1) Linking of personal information managed by the personal information management service provision system of the sub-personal information management service type. Personal information managed by a personal information management service provider system of a certain sub-personal information management service type and personal information managed by a personal information management service provider system of another sub-personal information management service type are linked via linking information set and registered in the will data management information setting area of ​​the real-time protected digital asset guard service provider system 100, which serves as the core personal information management service provider system.

[0165] (S5-2) Linking personal information managed in a distributed manner by the Real-Time Preservation Digital Asset Guard Service Provision System 100 as the core personal information management service provision system with personal information managed by personal information management service provision systems of sub-personal information management service types; linking personal information of one personal information management service type with personal information of another personal information management service type, which are managed in a distributed manner by the Real-Time Preservation Digital Asset Guard Service Provision System 100 as the core personal information management service provision system.

[0166] (S5-2-1) Simplified Information Search Key Conversion The simplified information retrieval key conversion means 21 converts personal information, which is distributed and managed by the real-time protected digital asset guard service provision system 100 as the core personal information management service provision system, into a simplified information retrieval key using a predetermined secure computation in a bookbox environment, without compiling the personal information that is transferred from a personal information management service provision system of a predetermined sub-personal information management service type.

[0167] (S5-2-2) Search using a simplified information search key The simplified information retrieval means 22 searches for personal information that is managed in a distributed manner by the real-time protected digital asset guard service provision system 100, which serves as the core personal information management service provision system, using the converted simplified information retrieval key.

[0168] (S5-2-3) If no data with a simplified information search key exists. If, as a result of the search by the summary information search means 22, there is no data having a summary information search key corresponding to the converted summary information search key, the first personal information association control means 23 distributes and records the personal information transferred from a personal information management service providing system of a predetermined sub-personal information management service type in the real-time preservation type digital asset guard service providing system 100 as the core personal information management service providing system, creates an ID of the distributed and recorded personal information, and sets and registers it in the will data management information setting area in the real-time preservation type digital asset guard service providing system 100 as the core personal information management service providing system. Then, the ID of the personal information registered in the will data management information setting area in the real-time preservation type digital asset guard service providing system 100 as the core personal information management service providing system is returned to the personal information management service providing system of the predetermined sub-personal information management service type.

[0169] (S5-2-4) If data with a simplified information retrieval key exists If, as a result of the search by the summary information search means 22, there is data having a summary information search key corresponding to the converted summary information search key in the personal information distributed and managed in the real-time preservation type digital asset guard service providing system 100 as the core personal information management service providing system, the second personal information association control means 24 sets and registers association information consisting of the predetermined sub-personal information management service type number and the ID of the personal information managed by the personal information management service providing system of the predetermined sub-personal information management service type in the will data management information setting area in the real-time preservation type digital asset guard service providing system 100 as the core personal information management service providing system. Also, the ID of the personal information set and registered in the will data management information setting area in the real-time preservation type digital asset guard service providing system 100 as the core personal information management service providing system is returned to the personal information management service providing system of the predetermined sub-personal information management service type.

[0170] (S6) Other Processing - Display of List of Will Data Related Information (Figure 59) (S6-1) List of personal information related to will data The smart contract 26 for displaying a list of personal information related to will data extracts and displays, as information that can be viewed in a list, the personal information of a predetermined type of personal information management service managed by the real-time preservation type digital asset guard service providing system 100 linked via the linking information 14g set and registered in the above will data management information setting area, and the personal information managed by the personal information management service providing systems of other types of personal information management services (real-time preservation type digital asset guard service type, sub-personal information management service type).

[0171] (S6-2) List of contract information related to will data The smart contract 27 for displaying a list of contract information related to will data displays in a list the content of the contract related to the individual in the above contract information, the validity of the contract, the effective period of the contract, and the like.

[0172] (S7) Other processing - Flowchart for deleting personal information related to the individual's will data (Figures 60, 61) (S7-1) Authentication of persons with access rights to will data The will data access authority authentication system 12 performs authentication for each will data access authority based on the will data access authority authentication personal confirmation information managed by the will data access authority authentication personal confirmation information management means 11.

[0173] (S7-2) Acquisition of agreement information The consent information acquisition means 13 acquires the consent information of the will data access authority regarding the deletion of will data by the will data access authority authenticated by the will data access authority authentication system 12.

[0174] (S7-3) Decryption of index information during deletion process The deletion process index information decryption means 109 decrypts the index information of the file data recorded in the index information creation, encryption, and recording means 105 for each group of file data associated with the information of each said preservation point, which is managed in a black box environment by the preservation point sorting destination information management means 103, based on the agreement information regarding the deletion of the will data by the person with access rights to the will data obtained by the agreement information acquisition means 13.

[0175] (S7-4) Deleting file data The file data deletion means 110 deletes the file data from a predetermined generation prior to the modified and distributed recording on multiple nodes of the distributed management file of the blockchain that is the storage destination corresponding to the file data, and on multiple nodes of a distributed management file that is separate from the blockchain, based on the index information decrypted by the index information decryption means 109 during the deletion process.

[0176] (S7-5) Deletion of the second file data The second file data deletion means 111 deletes the information of the preservation point associated with the file data to be deleted, which is managed in a black box environment by the preservation point sorting destination information management means 103, based on the agreement information obtained by the agreement information acquisition means 13 regarding the deletion of the will data by the person with access rights to the will data.

[0177] Effects of the Will Data Management Service Provision System 1 of the First Embodiment According to the first embodiment of the will data management service provision system 1, the system includes will data management information 14, will data management information setting acceptance means 15, will data management information setting / registration means 16, and a smart contract for will data management 17. The will data management information 14 includes the personal information 14a of the person who created the will data, the ID 14b of the person's personal information which is linked to the personal information of the person, the personal information 14c and contact information 14d of the person who has been entrusted or authorized by the person to back up and disclose the will data of the person, and the person who has been entrusted or authorized by the person. The will data management information setting reception means 15 has the personal information ID 14e, will data 14f, linking information 14g between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems, monitoring information 14h regarding whether the death certificate of the person concerned has been confirmed, and information 14i regarding whether the operation stop state for authorization of complex processing by the smart contract for will data management 17 has been released, and the will data management information setting reception means 15 receives the setting of the personal information of the person concerned from the person concerned. The system includes a means 15a for receiving the personal information settings of the individual, a means 15b for receiving the personal information and contact information settings of a person authorized or entrusted by the individual for the backup and disclosure of the will data, and a means 15c for receiving the will data settings from the individual. The will data management information setting / registration means 16 uses the personal information settings of the individual received by the personal information setting receiving means 15a to provide a real-time backup / restore type digital asset guard service. The personal information setting and registration means 16a of the individual to be set and registered in the will data management information setting area under the black box environment of the provided system 100, the personal information ID setting and registration means 16b of the individual to be set and registered in the will data management information setting area to the personal information ID of the individual which is linked to the personal information of the individual, and the personal information and contact information of the person who has been entrusted or authorized by the individual, which has been received by the personal information and contact information setting reception means 15b of the person who has been entrusted or authorized by the individual, to be set and registered in the will data management information setting area to the personal information of the person who has been entrusted or authorized by the individual,The contact information setting / registration method 16c and the ID of the personal information of the person who has been entrusted or authorized by the person concerned to back up and disclose the person's personal information and will data are set and registered in the will data management information setting area. The ID setting / registration method 16d of the personal information of the person who has been entrusted or authorized by the person concerned to back up and disclose the person's personal information and will data are set and registered in the will data management information setting area. Linking information between personal information managed by the system that provides the service for managing the person's will data and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems is set and registered in the will data management information setting area. The system is configured to include a will data setting / registration means 16e, which sets and registers the will data received from the individual by the will data setting reception means 15c in the will data management information setting area. Therefore, the individual's will data, the person to whom the will data is to be disclosed as desired, and other personal information related to the will data can be set in a black-box environment via the will data management information setting area. This allows for smooth notification that the will data can be disclosed to the person to whom the will data is to be disclosed after the individual's death.

[0178] Furthermore, according to the will data management service provision system 1 of the first embodiment, the will data management information 14 has linking information 14g between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems. The will data management information setting / registration means 16 has a linking information setting / registration means 16e that sets / registers the linking information between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems in the will data management information setting area. Therefore, when disclosing the will data to a person who wishes to disclose the will data after the death of the person concerned, the linking information with account information, contract information, and other personal information managed by financial institutions related to the person concerned's will can be disclosed along with the will data.

[0179] Furthermore, according to the will data management service provision system 1 of the first embodiment, the system includes a will data access authority authentication identity verification information management means 11 that manages identity verification information necessary for the authentication of will data access authority persons who have the authority to back up or disclose will data, a will data access authority person authentication system 12 that performs authentication for each will data access authority person based on the identity verification information for will data access authority person authentication managed by the will data access authority person authentication means 11, and an agreement information acquisition means 13 that acquires agreement information of will data access authority persons regarding the backing up, restoration, and deletion of will data by will data access authority persons authenticated by the will data access authority person authentication system 12. Thus, the system is configured to obtain agreement information regarding will data access authority persons' access to will data (preservation of will data, restoration of will data) while guaranteeing the authenticity of will data access authority persons.

[0180] Furthermore, according to the will data management service provision system 1 of the first embodiment, it has a death certificate confirmation monitoring means 18 that monitors whether or not the death certificate of the person concerned has been confirmed, and a death certificate confirmation information setting / registration means 16g that sets / registers information indicating that the death certificate of the person concerned has been confirmed in the will data management information setting area when the death certificate confirmation monitoring means 18 has confirmed the death certificate of the person concerned, and when the death certificate of the person concerned has been set / registered in the will data management information setting area by the death certificate confirmation information setting / registration means 16g, the operation regarding the authorization of complex processing by the smart contract for will data management 17 is stopped. The smart contract for managing wills has a management smart contract operation stop state release setting / registration means 16h that sets and registers information on releasing the stop state in the will data management information setting area, and when the smart contract for managing wills has the management smart contract operation stop state release setting / registration means 16h sets and registers information on releasing the stop state in the will data management information setting area, it has a function to notify the contact person who has been entrusted or authorized by the person concerned about the disclosure of the will data that the will data can be disclosed, so that the person who has been entrusted or authorized by the person concerned about the disclosure of the will data can be informed that the will data can be disclosed.

[0181] Furthermore, according to the will data management service provision system 1 of the first embodiment, a real-time protected digital asset guard service provision system 100 has a system that performs meaningless processing on predetermined information by combining polynomial secret sharing encryption processing and a processing method based on the agreement information of will data access rights holders through multiple authentications, and manages the information in a distributed manner as files sorted into multiple points, and also encrypts and manages the index information of the distributed files, and the personal information of the person in question, the personal information of persons who have been entrusted or authorized by the person in question, and the will data set and registered in the will data management information setting area are rendered meaningless by the combination of polynomial secret sharing encryption processing and a processing method based on the agreement of will data access rights holders through multiple authentications of the real-time protected digital asset guard service provision system 100. The data is processed and distributed as files sorted into multiple points, and the index information for these distributed files is managed in an encrypted state by the real-time digital asset guard service provision system 100. Subsequently, the personal information of the individual, the personal information of those authorized or permitted by the individual, and the will data set and registered in the will data management information setting area are deleted. By combining polynomial secret sharing encryption processing with a processing method based on bidirectional agreement between those with access rights to the will data (which complements the polynomial secret sharing encryption processing), data is preserved while simultaneously avoiding analysis of the data's destination address and index information, thereby achieving PQC (post-quantum cryptography) and solving the aforementioned problems regarding the preservation of personal information. Furthermore, the real-time digital asset guard service provision system 100 makes it possible to manage personal information in a form that does not involve personal information by using polynomial data mosaicization and polynomial secret sharing encryption to render the data meaningless, making the process irreversible. In addition, by cutting the index information that records where the meaningless information is managed, the link to the information actually being managed is severed, making it equivalent to deleting the relevant information. Furthermore, copying this meaningless information becomes impossible for anyone other than those with access rights to the will data (those who have agreed to a processing method based on a two-way agreement regarding data preservation), and because the specified rights can be locked based on the designated content, the requirements for enforceability against third parties can be met. This enables the management of will data on-chain and allows for linking with personal information managed by other personal information management service providers.

[0182] Furthermore, according to the will data management service provision system 1 of the first embodiment, the linking information 14g is composed of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of that personal information management service type. Therefore, it is possible to link personal information managed by other personal information management service provision systems without the personal information being identified externally.

[0183] Furthermore, according to the will data management service provision system 1 of the first embodiment, personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system 100 and personal information managed by personal information management service provision systems of other personal information management service types (real-time digital asset guard service type, sub-personal information management service type) are linked via linking information set and registered in the will data management information setting area. Therefore, it is possible to realize linking with personal information managed by other personal information management service provision systems via the will data management information setting area in the black box environment of the real-time digital asset guard service provision system 100.

[0184] Also, according to the will data management service providing system 1 of the first embodiment, personal information managed by a system that provides a service for managing the will data of the individual, and personal information managed by a personal information management service providing system of another type of personal information management service are associated via the association information 14g set and registered in the will data management information setting area. Therefore, other personal information of the individual related to the will data of the individual can be associated with the will data and disclosed.

[0185] Also, according to the will data management service providing system 1 of the first embodiment, when the association information between personal information of a predetermined type of personal information management service managed by the real-time preservation type digital asset guard service providing system 100 and personal information of another type of personal information management service is set and registered in the will data management information setting area, the access right (which can be set and registered in units of personal information management service providing systems of types of personal information management services) to personal information managed by a personal information management service providing system of the type of personal information management service (core type of personal information management service, sub-type of personal information management service) associated with the personal information of the predetermined type of personal information management service managed by the real-time preservation type digital asset guard service providing system 100 is set and registered. Therefore, the person authorized to access the will data can access the personal information of the individual managed by the personal information management service providing system 100 of the predetermined type of personal information management service associated with the will data of the individual.

[0186] Furthermore, according to the will data management service provision system 1 of the first embodiment, it further includes a simplified information search key conversion means 21 that converts personal information managed by a personal information management service provision system of a predetermined personal information management service type into a simplified information search key using a predetermined secure computation in a bookbox environment, and a simplified information search means 22 that searches personal information distributed and managed by the real-time protected digital asset guard service provision system 100 using the simplified information search key converted by the simplified information search key conversion means 21. In addition, the real-time protected digital asset guard service provision system 100 is configured to include a simplified information search key addition means 25 that converts personal information into a simplified information search key using a predetermined secure computation in a bookbox environment, encrypts it, and adds it to the distributed personal information and index information. Therefore, it is possible to easily and secretly determine whether or not the personal information of the person in question, managed by a personal information management service provision system of a predetermined personal information management service type, is distributed and managed by the real-time protected digital asset guard service provision system 100, without going through complex processing for restoring the personal information in the real-time protected digital asset guard service provision system 100.

[0187] Furthermore, according to the will data management service provision system 1 of the first embodiment, if, as a result of the search by the simplified information search means 22, there is no data with a simplified information search key corresponding to the simplified information search key in the personal information distributed and managed in the real-time protected digital asset guard service provision system 100, the personal information managed by the personal information management service provision system of a predetermined personal information management service type is distributed and recorded in the real-time protected digital asset guard service provision system 100, an ID for the distributed and recorded personal information is created, set and registered in the will data management information setting area, and the ID of the personal information registered in the will data management information setting area is transmitted to the personal information management service provision system of the predetermined personal information management service type. This configuration further includes a first personal information linking control means 23, so that even if the personal information managed by the personal information management service provision system of a predetermined personal information management service type for that person is not distributed and managed in the real-time protected digital asset guard service provision system 100, the personal information can be linked to the personal information managed by the real-time protected digital asset guard service provision system 100.

[0188] Furthermore, according to the will data management service provision system 1 of the first embodiment, if, as a result of the search by the simplified information search means 22, data having a simplified information search key corresponding to the simplified information search key exists in the personal information distributed and managed in the real-time protected digital asset guard service provision system 100, the system further includes a second personal information linking control means 24 that sets and registers linking information consisting of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of the predetermined personal information management service type in the will data management information setting area, and transmits the ID of the personal information set and registered in the will data management information setting area to the personal information management service provision system of the predetermined personal information management service type. Therefore, when the personal information of the person in question is managed by the personal information management service provision system of the predetermined personal information management service type and is distributed and managed in the real-time protected digital asset guard service provision system 100, the personal information can be linked to the personal information managed by the real-time protected digital asset guard service provision system.

[0189] Furthermore, according to the will data management service provision system 1 of the first embodiment, the simplified information search key conversion means 21 extracts a predetermined number of digits of data from the beginning of personal information managed by a personal information management service provision system of a predetermined personal information management service type and converts them into a simplified information search key by a predetermined secure calculation in a bookbox environment. The simplified information search means 22 decodes the simplified information search key attached to personal information distributed and managed by the real-time protected digital asset guard service provision system 100 and searches using the simplified information search key converted by the simplified information search key conversion means 21. Thus, it is possible to easily and secretly determine whether or not the personal information of the person in question, managed by a personal information management service provision system of a predetermined personal information management service type, is distributed and managed by the real-time protected digital asset guard service provision system 100, without going through the complex processing required to restore the personal information in the real-time protected digital asset guard service provision system 100.

[0190] Furthermore, according to the will data management service provision system 1 of the first embodiment, the system is configured to further include a smart contract 26 for displaying a list of will data-related personal information, which extracts and displays as information that can be viewed in a list, personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100, which is linked via the linking information set and registered in the will data management information setting area, and personal information managed by other personal information management service provision systems of other personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type). As a result, a person with access rights to the will data can view personal information such as financial account information, securities account information, contract information, insurance information, etc., managed by other personal information management service provision systems of the person with access rights to the will data that are linked to that person's will data, as well as the core personal information of the person with access rights to the will data.

[0191] Furthermore, according to the will data management service provision system 1 of the first embodiment, the personal information managed by other personal information management service provision systems (real-time protected digital asset guard service type, sub-personal information management service type) linked to personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system 100 via the linking information set and registered in the will data management information setting area is configured to include asset information of financial institutions, etc. (account information managed by financial institutions) and management address information of asset-like tokens. Therefore, a person with access rights to the will data can confirm the asset information of financial institutions, etc. (account information managed by financial institutions) and management address information of asset-like tokens linked to the will data of that person.

[0192] Furthermore, according to the will data management service provision system 1 of the first embodiment, personal information managed by other personal information management service provision systems (real-time digital asset guard service type, sub-personal information management service type) that is linked to personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system 100 via the linking information 14g set and registered in the will data management information setting area is configured to be contract information. Therefore, a person with access rights to the will data can confirm the contract information of that person linked to their will data.

[0193] Furthermore, the will data management service provision system 1 of the first embodiment is configured to further include a smart contract 27 for displaying a list of will data-related contract information, which has a list display function that allows users to check the content of contracts related to the person in question in the contract information, the effect of the contract, the validity period of the contract, etc. Therefore, a person with access rights to the will data can check detailed information such as the content of the contract, the effect of the contract, and the validity period of the contract linked to the person's will data.

[0194] Furthermore, according to the will data management service provision system 1 of the first embodiment, when the death certificate confirmation information setting / registration means 16g sets / registers information in the will data management information setting area indicating that the death certificate of the person in question has been confirmed, the system is configured to further include a death certificate notification means 28 that notifies the financial institutions and tax offices related to the person in question, which are set / registered in the will data management information setting area as contact information for persons authorized or permitted by the person in question, that the death certificate of the person in question has been confirmed. This allows for notification procedures to be carried out with the financial institutions and tax offices related to the person in question.

[0195] Furthermore, according to the will data management service provision system 1 of the first embodiment, the real-time protected digital asset guard service provision system 100 is a unit that combines blockchain and file distributed management functions, etc., consisting of a group of nodes that combine nodes in multiple locations in different regions around the world, and is constructed by having multiple planets that form a single unit that constitutes a system for providing services that implement distributed smart contracts, server applications, etc., and is mainly a closed blockchain such as a private or consortium type, and is composed of at least one distributed ledger structure that is composed of multiple chains that may include a group of distributed ledgers and a public blockchain, etc., and based on the agreement information regarding the safekeeping of will data by the person with access rights to the will data obtained by the agreement information acquisition means 13, the personal information of the person, the personal information of the person who has been entrusted or authorized by the person, and the will data set and registered in the will data management information setting area are encrypted and polynomial secret sharing is used to save multiple file data A means of encryption and polynomial secret sharing partitioning 101 that partitions the file data into multiple files, a means of sorting the multiple file data partitioned by the encryption and polynomial secret sharing partitioning 101 into one of multiple security points, a means of sorting destination information management 103 that manages the destination information of the file data sorted by the security point sorting 102 in a black box environment, a means of modification and distributed recording 104 that modifies the file data sorted by the security point sorting 102 and distributes the recording of file data that does not exceed the block size to multiple nodes of a distributed management file group established on the blockchain, and file data that exceeds the block size to multiple nodes of a distributed management file group separate from the blockchain, and an index information creation, encryption, and recording means 105 that creates and encrypts index information of the file data distributed and recorded by the modification and distributed recording 104 and records it on a specific node of the blockchain in a black box environment,Based on the agreement information obtained by the agreement information acquisition means 13 regarding the restoration of the will data by the person with access rights to the will data, the index information decryption means 106 decrypts the index information of the file data recorded in the index information creation, encryption, and recording means 105 for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means 103. Based on the index information decrypted by the index information decryption means 106, the file data extraction means 107 extracts the modified and distributed recorded file data from multiple nodes of the distributed management file of the preservation destination blockchain and multiple nodes of a distributed management file separate from the blockchain, and restores it to its state before modification. The file data extraction means 107 integrates and decrypts the fragmented file data extracted by the file data extraction means 107 to restore the personal information of the person in question, the personal information of a person who has been commissioned or authorized by the person in question, and the will data to their original state. Based on the information / will data recovery means 108 and the agreement information obtained by the agreement information acquisition means 13 regarding the deletion of will data by the will data access holder, the deletion processing index information decryption means 109 decrypts the index information of the file data recorded in the index information creation / encryption / recording means 105 for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means 103, the file data deletion means 110 deletes the file data of a predetermined generation or earlier that has been modified and distributed recorded on multiple nodes of the distributed management file of the preservation destination blockchain and multiple nodes of a distributed management file separate from the blockchain, based on the index information decrypted by the deletion processing index information decryption means 109, and based on the agreement information obtained by the agreement information acquisition means 13 regarding the deletion of will data by the will data access holder,The system includes a second file data deletion means 111 that deletes the information of the preservation point associated with the file data to be deleted, which is managed under a black box environment by the preservation point sorting destination information management means 103. Therefore, in managing personal information, the polynomial data mosaicization and polynomial secret sharing encryption processing that renders the data meaningless are irreversible. Furthermore, by cutting the index information that records the management destination of the meaningless information, the link to the actually managed information is severed, making it equivalent to deleting the relevant information. This realizes the management of personal information in a form that is not personal information.

[0196] Furthermore, according to the will data management service provision system 1 of the first embodiment, when the will data of the person concerned is restored via the real-time protected digital asset guard service provision system 100 based on the agreement information regarding the restoration of the will data by the will data access authority obtained by the agreement information acquisition means 13, the system further includes a will data digital certificate issuing means 20 that issues a digital certificate of the restored will data to the lawyer who is the will data access authority, making it easy to obtain a certificate of the will data.

[0197] Therefore, according to the will data management service provision system 1 of the first embodiment, a will data management service provision system is obtained that uses blockchain technology to withstand evolving cyberattacks such as quantum computer cryptography analysis, ransomware via users, and insider attacks, and is superior in terms of cost, security strength, and processing convenience.

[0198] Although preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various modifications and substitutions can be made to the embodiments described above within the scope of the specification and drawings without departing from the scope of the present invention. [Industrial applicability]

[0199] The will data management service provision system of the present invention is useful in fields that handle confidential information such as personal information and security-related information, control modules for important functions, currencies such as stablecoins, rights such as contracts, and other important information as digital assets. [Explanation of symbols]

[0200] 1. Will Data Management Service Provision System 11. Management of personal identification information for authentication of persons with access rights to will data 12. Will Data Access Authority Authentication System 13 Means of obtaining consent information 14. Will Data Management Information 14a Personal information of the person who created the will data 14b The ID of the individual's personal information, which is the personal information number linked to the individual's personal information. 14c Personal information of persons who have been entrusted or authorized by the person concerned to back up or disclose the person's will data. 14d Contact information of the person who has been entrusted or authorized by the person concerned to back up and disclose the person's will data. 14e. Personal information ID of a person who has been entrusted or authorized by the individual concerned. 14f Will Data 14g Linking information between personal information managed by a system that provides a service for managing the will data of the individual concerned and account information, contract information, and other personal information managed by financial institutions that are managed by other personal information management service providers. 14h Monitoring information regarding whether or not the death certificate of the person in question has been confirmed. Information regarding whether the operational suspension status has been lifted for the authorization of complex processing by the smart contract 17 for will data management (14i) 15. Method for receiving settings for will data management information 15a Method for receiving personal information settings 15b Personal information and contact information settings of persons authorized or permitted by the individual concerned. 15c Method for receiving will data settings 16. Method for setting and registering information for managing will data 16a Methods for setting and registering personal information 16b Method of setting and registering an ID for the individual's personal information 16c Personal information and contact information settings / registration methods of persons authorized or permitted by the individual concerned. 16d Personal information ID setting and registration method for persons authorized or permitted by the individual concerned 16e Linking Information Setting / Registration Method 16f Will Data Setting / Registration Method 16g Death certificate confirmation information setting / registration method 16h Management Smart Contract Operation Deactivation Setting / Registration Method 17. Smart contract for managing will data 18. Monitoring methods for verifying the presence or absence of death certificates. 21. Simplified information retrieval key conversion means 22. Simplified Information Retrieval Method 23. First personal information linking control means 24. Second personal information linking control means 25. Simple information retrieval key addition means 26. Smart contract for displaying a list of personal information related to will data. 27. Smart contract for displaying a list of contract information related to will data. 28. Means of notifying death certificates 29. Method for issuing digital certificates of will data 100 Real-time digital asset protection service provision system 101 Encryption and Polynomial Secret Sharing and Partitioning Methods 102 Preservation Point Sorting Method 103 Management method for information sorting destinations of conservation points 104 Modified and Distributed Recording Methods 105 Index information creation, encryption, and recording methods 106 Index information decoding means 107 File Data Extraction Method 108 Methods for recovering personal information and will data 109 Means for decrypting index information during deletion process 110 File data deletion method 111 Second file data deletion method

Claims

1. A system that provides a service for managing will data, built with a distributed ledger in blockchain or other distributed ledger technology, and a smart contract or server application for performing predetermined processing using data managed in said distributed ledger, while protecting personal information and other data that is difficult to manage in a system from high-level cyberattacks, primarily on-chain, A means for managing identity verification information for will data access authority holders, which manages identity verification information necessary for authenticating will data access authority holders who have the authority to back up or disclose will data, A will data access authority authentication system that performs authentication for each will data access authority based on the identity verification information for will data access authority authentication managed by the identity verification information management means for will data access authority authentication, A means for obtaining consent information to obtain consent information of a person authorized to access will data, regarding the backup, restoration, and deletion of will data, by a person authorized to access will data, who has been authenticated by the aforementioned will data access authorization authentication system, Will data management information, A means for receiving settings for will data management information, Methods for setting and registering information for managing will data, A smart contract for managing will data, A means of monitoring whether the death certificate of the person concerned has been verified, A real-time digital asset guard service provision system that combines polynomial secret sharing encryption processing with a processing method based on the consent information of those authorized to access will data through multiple authentications, thereby rendering predetermined information meaningless, managing it in a distributed manner as files sorted into multiple points, and encrypting and managing index information for the distributed files. It has, The aforementioned will data management information is, The personal information of the person who created the will data, The ID of the individual's personal information, which is the personal information number linked to the individual's personal information, Regarding the backup and disclosure of the will data of the person concerned, the personal information and contact details of the person who has been entrusted or authorized by the person concerned, The ID of the personal information of the person who has been entrusted or authorized by the person concerned, Will data and, Personal information managed by a system that provides a service for managing the will data of the person concerned, and linked information between this personal information and account information, contract information, and other personal information managed by financial institutions that are managed by other personal information management service providers, Monitoring information regarding whether or not the death certificate of the person in question has been confirmed, Information regarding whether the operational suspension status has been lifted for the authorization of complex processing by the smart contract for managing will data, It has, The aforementioned will data management information setting acceptance means is A means of receiving the setting of personal information of the individual concerned, Regarding the backup and disclosure of will data, the system accepts the setting of personal information and contact details of the person authorized by the person concerned, and the means for accepting the setting of personal information and contact details of the person authorized by the person concerned, and the means for accepting the setting of personal information and contact details of the person authorized by the person concerned, and A means for receiving the setting of will data from the person concerned, It has, The aforementioned means for setting and registering will data management information is: The personal information of the individual, received by the aforementioned personal information setting acceptance means, is set and registered in the will data management information setting area under a black box environment in the real-time backup and restoration type digital asset guard service provision system, and is a personal information setting and registration means for the individual, A means for setting and registering the ID of the personal information of the person concerned, which is a personal information number linked to the personal information of the person concerned, in the aforementioned will data management information setting area, The personal information and contact information of the person authorized or permitted by the aforementioned person, which is received by the aforementioned personal information and contact information setting acceptance means, is set and registered in the aforementioned will data management information setting area, and the personal information and contact information setting / registration means of the person authorized or permitted by the aforementioned person, A means for setting and registering the ID of the personal information of a person who has been entrusted or authorized by the individual concerned to back up and disclose the personal information and will data of the individual concerned, in the will data management information setting area, A linking information setting and registration means for setting and registering linking information between personal information managed by a system that provides a service for managing the will data of the person concerned and account information, contract information, and other personal information managed by financial institutions managed by other personal information management service provision systems in the will data management information setting area, A will data setting and registration means sets and registers the will data received from the person by the will data setting acceptance means in the will data management information setting area, When the death certificate of the person concerned is confirmed by the aforementioned death certificate confirmation monitoring means, the death certificate confirmation information setting and registration means sets and registers information indicating that the death certificate of the person concerned has been confirmed in the aforementioned will data management information setting area, When the death certificate of the person concerned is set and registered in the will data management information setting area by the death certificate confirmation information setting and registration means, the management smart contract operation suspension release setting and registration means sets and registers information to release the operation suspension state regarding the authorization of complex processing by the smart contract for will data management in the will data management information setting area, It has, The smart contract for managing will data has a function to notify the contact person who has been entrusted or authorized by the person concerned that the will data can be disclosed when the information to release the operation stop state is set and registered in the will data management information setting area by the smart contract operation stop state release setting and registration means. The personal information of the individual concerned, the personal information of persons authorized or permitted by the individual concerned, and the will data set and registered in the will data management information setting area are rendered meaningless through a combination of polynomial secret sharing encryption processing and a processing method based on the agreement of will data access rights holders through multiple authentications in the real-time digital asset guard service provider system. This data is then distributed and managed as files sorted into multiple points. Index information for these distributed files is managed in an encrypted state by the real-time digital asset guard service provider system, and subsequently, the personal information of the individual concerned, the personal information of persons authorized or permitted by the individual concerned, and the will data set and registered in the will data management information setting area are deleted. A will data management service provision system characterized by the following features.

2. The will data management service provision system according to claim 1, characterized in that the aforementioned linked information consists of a predetermined personal information management service type number and an ID of personal information managed by the personal information management service provision system of that personal information management service type.

3. The will data management service provision system according to claim 2, characterized in that personal information of a predetermined type of personal information management service managed by the real-time digital asset guard service provision system and personal information managed by personal information management service provision systems of other types of personal information management services (real-time digital asset guard service type, sub-personal information management service type) are linked via the linking information set and registered in the will data management information setting area.

4. The will data management service provider system according to claim 2, characterized in that personal information managed by the system that provides a service for managing the will data of the person concerned and personal information managed by other personal information management service provider systems of different types of personal information management services are linked via the linking information set and registered in the will data management information setting area.

5. The will data management service provision system according to claim 2, characterized in that, if the aforementioned linking information between personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system and personal information of other personal information management service types is set and registered in the will data management information setting area, then access rights (which can be set and registered on a per-personal information management service provision system basis for each personal information management service type) to personal information managed by personal information management service provision systems of personal information management service types (core personal information management service type, sub personal information management service type) linked to the personal information of the predetermined personal information management service type managed by the real-time digital asset guard service provision system are set and registered.

6. A simplified information retrieval key conversion means that converts personal information managed by a personal information management service provision system of a specified type of personal information management service into a simplified information retrieval key using a specified secure computation in a bookbox environment, A simplified information retrieval means for searching personal information managed in a distributed manner by the aforementioned real-time digital asset guard service provision system using a simplified information retrieval key converted by the simplified information retrieval key conversion means, Furthermore, it also possesses, The aforementioned real-time digital asset guard service provision system includes a means for adding a simple information retrieval key to distributed personal information and index information, which is converted into a simple information retrieval key using a predetermined secure computation in a bookbox environment using personal information, encrypted, and then added to the personal information and index information. The will data management service provision system according to feature 2.

7. The will data management service provision system according to claim 6, further comprising a first personal information linking control means, which, if, as a result of a search by the simplified information search means, there is no data in the personal information distributed and managed in the real-time protected digital asset guard service provision system that has a simplified information search key corresponding to the simplified information search key, causes the personal information managed by a personal information management service provision system of a predetermined type of personal information management service to be distributed and recorded by the real-time protected digital asset guard service provision system, creates an ID for the distributed and recorded personal information, sets and registers it in the will data management information setting area, and transmits the ID of the personal information registered in the will data management information setting area to the personal information management service provision system of the predetermined type of personal information management service.

8. The will data management service provision system according to claim 6, further comprising: a second personal information linking control means that, as a result of a search by the simplified information search means, if there is data in the personal information distributed and managed in the real-time protected digital asset guard service provision system that has a simplified information search key corresponding to the simplified information search key, sets and registers linking information consisting of a predetermined personal information management service type number and the ID of the personal information managed by the personal information management service provision system of the predetermined personal information management service type in the will data management information setting area, and transmits the ID of the personal information set and registered in the will data management information setting area to the personal information management service provision system of the predetermined personal information management service type.

9. The simplified information retrieval key conversion means is configured to extract a predetermined number of digits of data from the beginning of personal information managed by the personal information management service provision system of the predetermined personal information management service type, and convert them into the simplified information retrieval key by predetermined secure computation in a predetermined bookbox environment. The will data management service provision system according to claim 6, characterized in that the simplified information retrieval means is configured to decode the simplified information retrieval key attached to personal information managed in a distributed manner by the real-time digital asset guard service provision system, and to perform a search using the simplified information retrieval key converted by the simplified information retrieval key conversion means.

10. The will data management service provision system according to claim 2, further comprising a smart contract for displaying a list of will data-related personal information, which extracts and displays as information that can be viewed in a list format the personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system that is linked via the linking information set and registered in the will data management information setting area, and personal information managed by personal information management service provision systems of other personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type).

11. The will data management service provision system according to claim 2, characterized in that, via the linking information set and registered in the will data management information setting area, the personal information managed by other personal information management service provision systems of different personal information management service types (real-time protected digital asset guard service type, sub-personal information management service type) that are linked to personal information of a predetermined personal information management service type managed by the real-time protected digital asset guard service provision system is asset information of financial institutions, etc. (account information managed by financial institutions), and management address information of tokens with asset value.

12. The will data management service provision system according to claim 2, characterized in that the personal information managed by other personal information management service provision systems (real-time digital asset guard service type, sub-personal information management service type) that is linked to personal information of a predetermined personal information management service type managed by the real-time digital asset guard service provision system via the linking information set and registered in the will data management information setting area is contract information.

13. The will data management service provision system according to claim 2, further comprising a smart contract for displaying a list of will data-related contract information, which has a list display function that allows the user to confirm the content of the contract related to the person in question in the aforementioned contract information, the validity of the contract, the validity period of the contract, etc.

14. The will data management service provision system according to claim 1, further comprising a death certificate notification means that, when information indicating that the death certificate of the person concerned has been confirmed is set and registered in the will data management information setting area by the death certificate confirmation information setting means, notifies the financial institutions and tax offices related to the person concerned, which are set and registered in the will data management information setting area as contact information for persons authorized or permitted by the person concerned, that the death certificate of the person concerned has been confirmed.

15. The aforementioned real-time digital asset guarding service provision system is A distributed ledger structure consisting of at least one chain, primarily a closed blockchain such as a private or consortium type, which is built with multiple planets that form a single unit for providing services that implement distributed smart contracts and server applications, etc., and which are units that combine blockchain and file distribution management functions, etc., and which are composed of a group of nodes that combine nodes in multiple locations in different regions around the world, and which are built with at least one distributed ledger structure that is composed of multiple chains that may include a group of distributed ledgers and a public blockchain, and Based on the agreement information regarding the safekeeping of will data obtained by the person with access rights to the will data through the aforementioned agreement information acquisition means, the encryption and polynomial secret sharing partitioning means divides the personal information of the person, the personal information of persons who have been entrusted or authorized by the person, and the will data set and registered in the will data management information setting area into multiple file data using encryption and polynomial secret sharing, A security point sorting means that sorts multiple file data partitioned by the encryption / polynomial secret sharing partitioning means by associating them with one of multiple security points, A preservation point sorting destination information management means manages the sorting destination information of file data sorted by the aforementioned preservation point sorting means in a black box environment, A modification and distributed recording means modifies the file data sorted by the aforementioned preservation point sorting means, and for file data that does not exceed the block size, it distributes and records it to multiple nodes of a distributed management file group established on the blockchain, and for file data that exceeds the block size, it distributes and records it to multiple nodes of a distributed management file group separate from the blockchain. An index information creation, encryption, and recording means that creates and encrypts index information of file data distributed and recorded by the aforementioned modification and distributed recording means, and records it on a specific node of the blockchain in a black box environment, Based on the agreement information obtained by the agreement information acquisition means regarding the restoration of the will data by the person with access rights to the will data, the index information decryption means decrypts the index information of the file data recorded in the index information creation, encryption, and recording means for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means, Based on the index information decrypted by the aforementioned index information decryption means, a file data extraction means extracts the modified and distributed recorded file data from multiple nodes of the distributed management file of the blockchain corresponding to the file data and multiple nodes of a distributed management file separate from the blockchain, respectively, and restores it to its state before modification. A personal information / will data restoration means integrates and decrypts multiple fragmented file data extracted by the aforementioned file data extraction means to restore the personal information of the individual in question, the personal information of a person authorized or entrusted by the individual, and will data before backup, and Based on the agreement information obtained by the agreement information acquisition means regarding the deletion of will data by the person with access rights to the will data, the deletion process index information decryption means decrypts the index information of the file data recorded in the index information creation, encryption, and recording means for each group of file data associated with the information of each said preservation point managed in a black box environment by the preservation point sorting destination information management means, A file data deletion means that deletes the modified and distributed recorded file data from a predetermined generation prior to the file data, based on the index information decrypted by the aforementioned deletion process index information decryption means, to multiple nodes of the distributed management file of the destination blockchain corresponding to the file data and to multiple nodes of a distributed management file separate from the blockchain. A second file data deletion means deletes the information of the preservation point associated with the file data to be deleted, which is managed in a black box environment by the preservation point sorting destination information management means, based on the agreement information obtained by the agreement information acquisition means regarding the deletion of the will data by the person with access rights to the will data. The will data management service provision system according to claim 1, characterized by having the following features.

16. The will data management service provision system according to claim 1, further comprising: a will data digital certificate issuing means that issues a digital certificate for the restored will data to the lawyer who is the will data access authority, when the will data of the person in question is restored via the real-time protected digital asset guard service provision system based on the agreement information regarding the restoration of the will data by the will data access authority obtained by the agreement information acquisition means, and the information regarding the restoration of the will data by the will data access authority obtained by the agreement information acquisition means.

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