JP2019149789A - Takeover target information processing system - Google Patents

Abstract

To provide an information processing device that provides takeover target information safely and reliably.SOLUTION: When a takeover stop request from either a taken-over user terminal device or another takeover user terminal device is not received within a predetermined period, a takeover target information processing device obtains and decrypts a takeover decryption key from a second storage area with a key predetermined by a takeover user and obtains and decrypts information necessary for starting the takeover from the second storage area with the decrypted takeover decryption key. Further, the takeover target information processing device allows a takeover user terminal device to obtain and decrypt takeover target information transmitted from the taken-over user terminal device and stored in a first storage area with a key predetermined by a taken-over user included in the decrypted information necessary for starting of the takeover.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a takeover target information processing system, and in particular, to a takeover target information processing apparatus, a takeover target information processing method, and a takeover target information processing program.

  Information to be inherited, such as information inherited by the heir (heritage inheritance information), must be kept secret when the heir is in a normal state. Moreover, when an abnormality occurs in the deceased person, it is necessary for the heir to reliably acquire the information to be taken over from the storage location.

  A number of techniques for processing such information to be transferred as computerized information in an information processing apparatus such as a server have been proposed.

  For example, Patent Document 1 discloses a technology related to an information inheritance system that manages computerized information including a will and asset management information on a system and provides information only to a specific person.

  In Patent Document 2, a file owned by a client is encrypted and transmitted to a Web file server, and the file itself and the file owner are permitted to encrypt the file even when stored in the Web file server. A technique relating to an electronic file management system that enables only a succeeded successor to decrypt is disclosed.

  Patent Documents 3 and 4 disclose technologies related to an ending service system including a service support device that supports provision of a service related to the death of a person.

Japanese Patent No. 4,824,112 Japanese Patent No. 5,565,857 Japanese Patent No. 5,704,540 Japanese Patent No. 5,760,289

  However, the takeover target information processing technology disclosed in the above-mentioned Patent Documents 1, 2, 3, 4 and the like safely transfers the takeover target information stored in advance by the transferee user terminal device to the transferee user terminal device. In terms of ensuring that it can be provided, it is not yet sufficient.

  The challenge is to cooperate with the successor-use terminal device and the successor-use terminal device using a plurality of keys, and to safely and reliably store the transfer target information stored in advance by the successor-use terminal device in the successor-use terminal device. The object is to realize an innovative information processing technology that can be provided.

In order to solve the above-described problem, a transfer target information processing apparatus according to a first aspect includes a first storage area for storing transfer target information encrypted by a transferee in advance with a key, a transfer encryption key, A pair of takeover keys composed of takeover decryption keys, and at least one second storage area for storing at least one of the information required for the start of the takeover encrypted by the transferee including a predetermined key; A storage unit including;
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received within a predetermined period, the takeover person uses the predetermined key to transfer the takeover from the second storage area. Obtaining and decrypting a decryption key, using the decrypted takeover decryption key, obtaining information necessary for starting the takeover from the second storage area, decrypting, and decrypting the information necessary for starting the takeover The transferee included includes obtaining and decrypting the transfer target information transmitted from the transferee using terminal device and stored in the first storage area with a predetermined key. And a processor including means for enabling the takeover user terminal device.

The takeover target information processing apparatus according to the second aspect includes a first storage area for storing takeover target information encrypted with a predetermined key by a transferee, a takeover encryption key, and a takeover decryption key. A storage unit comprising: a key pair; and at least one second storage area for storing at least one of information necessary for the transferee to start encrypted transfer including a predetermined key;
When not receiving a takeover stop request from any one of the successor-use terminal device and another successor-use terminal device during a predetermined period, the take-off decryption key is acquired from the second storage area, and the acquired A key determined by the succeeding person included in the information necessary for starting the takeover obtained by acquiring and decrypting the information necessary for starting the takeover from the second storage area using the takeover decryption key Means for enabling the takeover user terminal device to acquire and decrypt the takeover object information transmitted from the takeover user terminal device and stored in the first storage area. And a processor.

The transfer target information processing apparatus according to the third aspect includes a first storage area for storing the transfer target information encrypted with a key predetermined by the transferee, the transfer key, and the transferee predetermined A storage unit including: at least one second storage area for storing at least one of the information necessary for starting the encrypted handover including the key;
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received within a predetermined period, the takeover person uses the predetermined key to transfer the takeover from the second storage area. It is included in the information necessary for starting the takeover, which is obtained by decrypting the key, obtaining the information necessary for starting the takeover from the second storage area, using the decrypted takeover key. The succeeding person obtains and decrypts the succeeding target information transmitted from the succeeding person using terminal device and stored in the first storage area with a predetermined key. A processor including means for enabling the terminal device to be used.

The transfer target information processing apparatus according to the fourth aspect includes a first storage area for storing the transfer target information encrypted with a key predetermined by the transferee, the transfer key, and the transferee predetermined A storage unit including: at least one second storage area for storing at least one of the information necessary for starting the encrypted handover including the key;
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received in a predetermined period, the takeover key is acquired from the second storage area, and the acquired takeover is performed. With the key, the information necessary for starting the takeover is obtained from the second storage area and decrypted, and the succeeded person included in the decrypted information necessary for the start of takeover uses the key determined in advance. A processor including means for enabling the successor user terminal device to acquire and decrypt the takeover object information transmitted from the takeover user terminal device and stored in the first storage area; and Comprising.

In the transfer target information processing apparatus according to the above aspect, the storage unit further includes a third storage area for storing deletion target information encrypted by another key predetermined by the transferee;
The processor is configured to delete the information to be deleted stored in the third storage area after the information necessary for starting the transfer stored in the second storage area is acquired in the takeover user terminal device. And a means for erasing.

  In the transfer target information processing apparatus according to the above aspect, the at least one second storage area includes a first key storage area for storing the transfer key and a second key for storing information necessary for starting the transfer. Storage area.

  In the transfer target information processing apparatus according to the above aspect, the takeover key stored in the second storage area is encrypted with a key predetermined by the heir and stored in the second storage area. The key predetermined by the transferee included in the information necessary for starting the transfer is encrypted with the transfer key.

  In the transfer target information processing apparatus according to the above aspect, the transfer / decryption key stored in the second storage area is encrypted with a key predetermined by the heir and stored in the second storage area. The key predetermined by the transferee included in the information necessary for starting the transfer is encrypted with the transfer encryption key.

  In the transfer target information processing apparatus according to the above aspect, the first key storage area and the second key storage area in the second storage area are configured for each transfer person.

  In the transfer target information processing apparatus according to the above aspect, the second storage area further stores contact information at the time of start of takeover of the transferee and contact information at the time of start of transfer of the transferee.

  In the transfer target information processing apparatus of the above aspect, the transfer target information includes information to be inherited by the heir as the transfer person, information necessary for the start of transfer includes information necessary for the start of the inheritance, and The information to be deleted includes information to be deleted at the time of inheritance.

  The takeover target information processing apparatus described above may be implemented as a takeover target information processing method and a takeover target information processing program.

  According to the disclosed technology, the takeover target information stored in advance by the transferee using terminal device is stored in the transferee using terminal device in cooperation with the transferee using terminal device and the transferee using terminal device using a plurality of keys. It is possible to realize an epoch-making information processing technology that can be safely and reliably provided.

  Other objects, features and advantages will become apparent upon reading the detailed description set forth below when taken in conjunction with the drawings and the appended claims.

The block diagram which shows the structure of the electronic heritage inheritance information processing system of one embodiment. The block diagram which shows the structure of the terminal device in one embodiment. The block diagram which shows the structure of the legacy inheritance information processing apparatus in one embodiment. The block diagram which shows the detailed structure of the inheritance inheritance information processing apparatus in one embodiment. The figure for demonstrating the user information management table in one Embodiment. The figure for demonstrating the key information management table in one embodiment. The figure for demonstrating the inheritance related information management table in one embodiment. The figure for demonstrating the outline | summary of the electronic heritage inheritance information processing in one embodiment. The figure for demonstrating the detail of the electronic heritage inheritance information processing in one embodiment. The figure for demonstrating the detail of the electronic heritage inheritance information processing in one embodiment. The figure for demonstrating the detail of the electronic heritage inheritance information processing in one embodiment. The figure for demonstrating the detail of the electronic heritage inheritance information processing in one embodiment. The figure for demonstrating the detail of the electronic heritage inheritance information processing in one embodiment. The figure for demonstrating the detail of the electronic heritage inheritance information processing in one embodiment. The block diagram which shows the structure of the electronic legacy inheritance information processing system of a modification.

  Hereinafter, further detailed description will be given with reference to the accompanying drawings. The drawings show preferred embodiments. However, it can be implemented in many different forms and is not limited to the embodiments described herein.

[Electronic Heritage Inheritance Information Processing System]
Referring to FIG. 1 showing a system configuration in an embodiment, the information processing system to be taken over is embodied as an electronic (digital) heritage inheritance information processing system 1.

  The electronic heritage inheritance information processing system 1 includes a heritage inheritance information processing device 2, a plurality of terminal devices 3, and a communication network 4. The legacy inheritance information processing device 2 cooperates with a plurality of terminal devices 3 (3A, 3B) using a plurality of keys via a communication network 4, and takes over the transfer target information stored in advance by the terminal device 3 (3A). An innovative electronic heritage inheritance information processing technology that enables safe and reliable provision to the device 3 (3B) is realized.

  The communication network 4 connects a telephone network including an exchange, an IP (Internet Protocol) network such as the Internet including a router, and a VoIP (Voice over) that converts a voice signal and an IP packet by connecting the telephone network and the IP network. Internet Protocol) gateway. The communication network 4 accommodates the legacy inheritance information processing device 2 and the plurality of terminal devices 3 (3A, 3B). In the following description, the intervention of the communication network 4 is omitted unless it becomes unclear.

  The plurality of terminal devices 3 include a heir user terminal device 3A and an heir user terminal device 3B.

  If the heir use terminal device 3A and the heir use terminal device 3B have a voice communication function and a data communication function, they are fixed telephone terminals, mobile phone terminals (including smartphones), and computer terminals (personal computers and A single configuration or a composite configuration including at least one of the above (including a tablet terminal) may be employed.

  The heir use terminal device 3A and the heir use terminal device 3B are assigned telephone numbers, e-mail addresses, and IP addresses in order to perform voice communication and data communication with each other or with the legacy inheritance information processing device 2. Yes.

  More specifically, the plurality of terminal devices 3 (3A, 3B) in the electronic heritage inheritance information processing system 1 include hardware and functional components as illustrated in FIG. That is, each terminal device 3 stores a CPU (Central Processing Unit) 11 as a processor, a RAM (Random Access Memory) 12 as a working memory, and a boot program for startup as hardware components. ROM (Read Only Memory) 13 is provided.

  Each terminal device 3 includes a non-volatile flash memory 14 that stores an OS (Operating System), application programs, and various types of information (including data) in a rewritable manner, a communication control unit 15, a NIC (Network Interface Card), and the like. The communication interface (IF) unit 16 is further provided.

  Each terminal device 3 further includes a display control unit 17, a display unit 18, an information input / designation unit 19, and the like. Furthermore, the terminal device 3 (3A, 3B) includes an encryption processing unit and a decryption processing unit as functional components.

  In each terminal device 3, in order to logically realize the functions described in detail later, a Web (Web: World Wide Web) browser, e-mail software, a terminal control program, and the like are installed in the flash memory 14 as application programs. deep. In each terminal device 3, the processor (CPU) 11 develops the application program in the RAM 12 and executes it in response to power-on or a user (user) instruction.

  The inheritance inheritance information processing device 2 in the electronic heritage inheritance information processing system 1 is an information storage server that is operated and managed by an ISP (Internet Service Provider) or the like. By carrying out, a desired electronic (digital) heritage inheritance service is provided to the terminal device 3 of the service use contractor.

  The legacy inheritance information processing apparatus 2 has both a data communication function and a voice communication function, and includes hardware and functional components as illustrated in FIG. That is, the legacy inheritance information processing apparatus 2 includes a CPU 21 as a processor, a RAM 22 as a working memory, and a ROM 23 that stores a boot program for startup as hardware components.

  The inheritance inheritance information processing device 2 also includes a non-volatile flash memory 24 that stores an OS, application programs, and various types of information (including data) in a rewritable manner, a communication control unit 25, and a communication interface (IF) such as a NIC. ) Part 26 and the like.

  The inheritance inheritance information processing apparatus 2 includes, as functional components described in detail later, an inheritance information storage area M1, an inheritance deletion information storage area M2, an heir key storage area M3, a heir key storage area M4, and a user. An information management table TB1, a key information management table TB2, and an inheritance related information management table TB3 are provided. These functional components are configured in the flash memory 24.

  In the inheritance inheritance information processing apparatus 2, in order to logically realize the functions described in detail later, an electronic inheritance inheritance information processing program is installed in the flash memory 24 as an application program. In the inheritance inheritance information processing device 2, the processor (CPU) 21 always develops and executes this processing program in the RAM 22 when the power is turned on.

[Details of heritage information processing equipment]
Next, the detailed configuration of the inheritance inheritance information processing apparatus 2 in the electronic inheritance inheritance information processing system 1 will be described with reference to FIGS.

  The inheritance inheritance information processing device 2 includes an inheritance information storage area M1 and an inheritance deletion information storage area M2. The inheritance information storage area M1 and the inheritance deletion information storage area M2 are configured for each heir PS1 in the flash memory 24 serving as a storage unit.

  The inheritance information storage area M1 is a storage area for storing (storing) the inheritance target information IF1 that is information to be inherited by the heir. The inheritance target information IF1 in the inheritance information storage area M1 is encrypted (using) by the inheritor management key KY1, which is a key (plaintext secret key) predetermined by the inheritor PS1.

  Succession target information IF1 is heritage inheritance information for heirs (legal heirs such as spouses, children) PS2 when an abnormality occurs in the deceased PS1. Includes ID / password, securities account ID / password, and contact information for lawyers entrusted with will management. Here, when an abnormality occurs in the deceased person PS1, it includes when the deceased person PS1 has died, when a dementia illness has occurred, or when the caregiver is required.

  Note that the process of creating the decedent management key KY1 and the encryption process of the takeover target information IF1 are performed in the decedent user terminal device 3A.

  The inheritance deletion information storage area M2 is a storage area for storing the deletion target information IF2, which is information to be deleted at the time of inheritance. The deletion target information IF2 in the inheritance deletion information storage area M2 is encrypted by the inheritance deletion key KY2, which is a key (plaintext secret key) predetermined by the inheritor PS1.

  The deletion target information IF2 is confidential information to be deleted when an abnormality occurs in the heir PS1, and includes a site password, a sauna member number, and an image that the heir PS2 does not want to show. The deletion target information IF2 stored in the deletion information storage area M2 at the time of inheritance is automatically deleted after the elapse of a predetermined period when the inheritance (inheritance procedure) is started. Here, the predetermined period is set by the deceased person PS1 in a format such as year / month / day, hour: minute, etc. in the decedent use terminal device 3A. When the predetermined period is set to “0”, the erasure target information IF2 is immediately erased.

  It should be noted that the process of creating the inheritance deletion key KY2 and the encryption process of the deletion target information IF2 are performed in the inherited person using terminal device 3A.

  The inheritance inheritance information processing device 2 includes a key storage area M3 of an heir configured in the flash memory 24 for each heir PS2. This heir's key storage area M3 is inherited as a pair of inheritance keys KY4 for encrypting and decrypting the inheritance necessary information (information necessary for starting the inheritance) IF3 in the later-mentioned successor's key storage area M4. This is a storage area for storing the encryption key KY4A and the inheritance decryption key KY4F.

  Here, since the public key cryptography (public key cryptosystem) is applied to the pair of the inheritance key KY4, the inheritance decryption key KY4F is a secret key, and is a key (plaintext secret key) predetermined by the heir PS2. It is encrypted with a key KY6 of an inheritance decryption key and stored in the key storage area M3 of the heir. The inheritance encryption key KY4A is a public key and is stored in the heir key storage area M3 in plain text without being encrypted. The inherited decryption key KY4F before encryption is not stored in the heir key storage area M3.

  Further, here, the pair of the inheritance key KY4 is automatically generated under the initiative of the heir PS2, and is created for each heir PS2. By creating a pair of inheritance keys KY4 for each heir PS2, it is possible to implement inheritance with any of the inheritance decryption keys KY4F when the key is forgotten. It is also possible for all heirs PS2 to use the same pair of inheritance keys KY4.

  It should be noted that the process of creating the inheritance key KY4 pair and the encryption process of the inheritance decryption key KY4F are performed in the heir user terminal device 3B. In addition, the process of creating the inheritance decryption key key KY6 is performed in the heir use terminal device 3B.

  The heir key storage area M3 further stores in plain text the contact DS2 when the heir inheritance is started. The inheritance start contact DS2 of the heir is a telephone number and an e-mail address for contacting when the inheritance is started, and it is preferable to store as many types of contacts as possible. . The inheritance start contact DS2 of the heir may be, for example, link information to the contact of the heir PS2 stored in the user information management table TB1. The inheritance start contact DS2 of the heir is automatically updated when the heir PS2 changes the contact.

  Note that the process of creating the inheritance start contact DS2 of the heir is performed in the heir use terminal device 3A or the inheritance inheritance information processing device 2.

  The inheritance inheritance information processing device 2 includes in the flash memory 24 a key storage area M4 for the heirs configured for each heir PS1. The decedent key storage area M4 is a storage area for storing the inheritance necessary information (information necessary for starting the inheritance) IF3.

  The inheritance necessary information IF3 in this decedent's key storage area M4 is encrypted with the inheritance encryption key KY4A. The inheritance necessary information IF3 includes a login ID of the deceased PS1, a login password (PW) of the decedent PS1, and an inheritance management key KY1. The inheritance necessary information IF3 is created for each heir PS2.

  It should be noted that the process of creating the inheritance necessary information IF3 and the encryption process of the inheritance necessary information IF3 are performed in the inherited user terminal device 3A.

  In this heir's key storage area M4, the heir's inheritance start contact DS2 is stored in plain text. An inheritance start contact DS2 of the heir is created for each heir PS2. The inheritance start contact DS2 of the heir may be link information to the inheritance start contact DS2 of the heir stored in the heir key storage area M3. The inheritance start contact DS2 of the heir is automatically updated when the heir PS2 changes the contact.

  Note that the process of creating the inheritance start contact DS2 of the heir is performed in the heir use terminal device 3A or the inheritance inheritance information processing device 2.

  The decedent's key storage area M4 further stores in plaintext the contact DS1 at the time of the inheritance start of the deceased. A contact DS1 at the time of starting the inheritance of the deceased is created for each decedent. The inheritance start contact DS1 of the deceased may be, for example, link information to the contact of the deceased PS1 stored in the user information management table TB1. The inheritance start contact DS1 of the deceased is automatically updated when the deceased PS1 changes the contact.

  The process of creating the inheritance start contact DS1 of the inherited is performed in the inherited-use terminal device 3A or the inheritance inherited information processing device 2.

  The inheritance inheritance information processing device 2 in the electronic inheritance inheritance information processing system 1 of the embodiment described above includes a user information management table TB1, a key information management table TB2, and an inheritance related information management table TB3. These tables TB1, TB2, and TB3 are configured in a flash memory 24 as a storage unit.

  FIG. 5 shows an example of the user information management table TB1. This user information management table TB1 is provided for each heir PS1 in order to associate users. Strictly speaking, the contents of the special remarks are managed by a table (not shown) different from the table TB1. The priority order of the plurality of heirs PS2, that is, the order of the spouse, the first rank legal heir, the second rank legal heir, etc., can be arbitrarily set by the heir PS1.

  FIG. 6 shows an example of the key information management table TB2. This key information management table TB2 is provided for each heir PS1 and heir PS2 in order to associate key information with a storage area (storage area). Plain text character strings with () are not stored in the key information management table TB2. The inheritance decryption key KY4F is stored in the key information management table TB2 when inheritance is started.

  FIG. 7 shows an example of the inheritance related information management table TB3. This inheritance related information management table TB3 is provided for each heir PS1 and heir PS2 in order to associate the inheritance related information with the storage area (storage area). That is, the takeover target information IF1 and the erasure target information IF2 and the storage areas M1 and M2 are associated with each heir PS1. Further, the inheritance necessary information IF3 and the storage area M4 are associated with each heir PS2.

[Electronic Heritage Inheritance Information Processing]
Next, electronic heritage inheritance information processing in the electronic heritage inheritance information processing system 1 will be described with reference to FIGS.

  In each terminal device 3, a terminal control program or the like is activated in response to power-on or a user instruction, and the processor (CPU) 11 performs the following processing. In the inheritance inheritance information processing apparatus 2, when the power is turned on, an electronic inheritance inheritance information processing program is activated, and the processor (CPU) 21 performs the following processing.

[S301] User registration: (see FIG. 8)
The heir PS1 and the heir PS2 perform user (user) registration via screens (account registration screens) displayed on the heir user terminal device 3A and heir user terminal device 3B, respectively. The data displayed on this screen is described in a predetermined markup language (for example, HTML (Hyper Text Markup Language)), etc., and the inheritance information according to each user's action (registration designation operation) at the time of service use contract The data is transmitted from the processing device 2 to each terminal device 3.

  In this user registration, user information such as login ID, login password (PW), contact (e-mail address), and contact (phone number) for the deceased PS1 and heir PS2 is registered. The These pieces of user information are stored in the user information management table TB1 in the inheritance inheritance information processing device 2, as shown in FIG.

[S302] Creation and storage of decedent management key KY1 (see FIG. 8)
The deceased PS1 predetermines and creates a password (encryption / decryption password) character string (for example, hhh in plain text), that is, a passphrase, used as the decedent management key KY1 in the decedent user terminal device 3A. Keep it. Then, the deceased person PS1 stores a predetermined decedent management key KY1 in a predetermined storage area in the decedent user terminal device 3A.

  The heir PS1 may store a predetermined heir management key KY1 in a specific storage area in the inheritance inheritance information processing apparatus 2 in order to cope with a key forgetting or the like.

[S303] Creation / saving of transfer target information IF1 (see FIGS. 8 and 9)
The successor PS1 creates or updates the takeover target information IF1 that is information to be inherited by the heir in the heir use terminal device 3A. Then, the successor PS1 performs encryption processing (using) the inheritance target information IF1 with the predetermined successor management key KY1 in the successor use terminal device 3A.

  The encrypted inheritance target information IF1 is transmitted from the inherited user terminal device 3A to the legacy inheritance information processing device 2. And the inheritance inheritance information processing apparatus 2 preserve | saves (saves) the inheritance object information IF1 received in the corresponding | compatible area | region of the inherited person PS1 of the inheritance information storage area | region M1. This process S303 can be performed at an arbitrary timing according to the action (update designation operation) of the deceased PS1 when the deceased PS1 is in a normal state.

  Note that the inheritance information storage area M1 corresponding to the deceased PS1 is automatically secured, for example, according to the action (the user registration operation) of the deceased PS1.

[S304] Creation / saving of inheritance deletion key KY2 (see FIG. 8)
The successor PS1 previously determines and creates a character string (for example, iii in plain text) of a password (encryption / decryption password) to be used as the inheritance deletion key KY2 in the successor user terminal device 3A. Then, the deceased person PS1 stores the inheritance deletion key KY2 determined in advance in a predetermined storage area in the decedent use terminal device 3A.

  The heir PS1 may store a predetermined inheritance deletion key KY2 in a specific storage area in the inheritance inheritance information processing apparatus 2 in order to cope with a key forgetting or the like.

[S305] Creation / saving of erasure target information IF2 (see FIGS. 8 and 10)
The decedent PS1 creates or updates the deletion target information IF2 that is information to be deleted at the time of inheritance in the decedent user terminal device 3A. Then, the successor PS1 performs the encryption process on the deletion target information IF2 with the predetermined deletion key KY2 at the inheritance in the heir use terminal device 3A.

  The encrypted erasure target information IF2 is transmitted from the inherited user terminal device 3A to the legacy inheritance information processing device 2. And the inheritance inheritance information processing apparatus 2 preserve | saves the deletion object information IF2 received in the corresponding area | region of the inherited person PS1 of the deletion information storage area M2 at the time of inheritance. This process S305 can be performed at an arbitrary timing according to the action (update designation operation) of the deceased PS1 when the deceased PS1 is in a normal state.

  Note that the inheritance deletion information storage area M2 corresponding to the deceased PS1 is automatically secured, for example, according to the action of the deceased PS1 (the above user registration operation).

[S306] Creation / saving of inherited decryption key KY6 (see FIG. 8)
The heir PS2 determines and creates a character string (for example, aaa in plain text) of a password (encryption / decryption password) to be used as the key KY6 of the inheritance decryption key in the heir use terminal device 3B. Then, the heir PS2 stores the key KY6 of the inheritance decryption key determined in advance in a predetermined storage area in the heir use terminal device 3B.

  The heir PS2 may store a predetermined inheritance decryption key KY6 in the specific storage area in the inheritance inheritance information processing apparatus 2 in order to cope with the key forgetting or the like.

[S307] Creation / saving of inheritance key KY4 (see FIGS. 8 and 11)
In the heir use terminal device 3B, a pair of the inheritance key KY4 is created according to the action (creation designation operation) of the heir PS2. The pair of the inheritance key KY4 is an inheritance encryption key KY4A as a public key and an inheritance decryption key KY4F as a secret key. The pair of the inheritance key KY4 can be automatically generated by executing a predetermined command (for example, ssh-keygen command) in the heir use terminal device 3B.

  The created inheritance / decryption key KY4F is further encrypted with the inheritance / decryption key KY6 stored in a predetermined storage area in the heir use terminal device 3B. A common key encryption technique (common key encryption method) is applied to the encryption of the inheritance decryption key KY4F.

  The inheritance key KY4 including the created inheritance encryption key KY4A and the encrypted inheritance decryption key KY4F is transmitted from the inheritor use terminal device 3B to the inheritance inheritance information processing device 2. And the inheritance inheritance information processing apparatus 2 preserve | saves the pair of the inheritance key KY4 received in the area | region corresponding to the heir PS2 of the key storage area | region M3 of the heir.

  In addition, the heir key storage area M3 corresponding to the heir PS2 is automatically secured, for example, according to the action of the heir PS2 (the user registration operation).

[S308] Creation / saving of inheritance necessary information IF3 (see FIGS. 8 and 12)
The deceased PS1 inputs the inheritance necessary information IF3 including the login ID of the deceased PS1, the login PW of the decedent PS1 and the decedent management key KY1 in the decedent use terminal device 3A from the registration screen. Create or update.

  Then, the inheritor PS1 uses the inheritance encryption key KY4A stored in the inheritor's key storage area M3 in the inheritance inheritance information processing apparatus 2 for the inheritance necessary information IF3 created or updated in the inheritor using terminal apparatus 3A. Let the encryption process. The inherited user terminal device 3A acquires the inherited encryption key KY4A stored in the key storage area M3 of the heir for this encryption process. Public key cryptography (public key cryptography) is applied to encrypt the inheritance necessary information IF3.

  The encrypted inheritance necessary information IF3 is transmitted from the inherited user terminal device 3A to the legacy inheritance information processing device 2. And the inheritance inheritance information processing apparatus 2 preserve | saves the inheritance required information IF3 received in the corresponding | compatible area | region of the heir PS2 of the key storage area | region M4 of a decedent. This process S308 can be performed at an arbitrary timing according to the action (update designation operation) of the deceased PS1 when the deceased PS1 is in a normal state. When the inheritance necessary information IF3 including the login ID of the deceased PS1, the login PW of the deceased PS1, and the inheritance management key KY1 is changed, the deceased PS1 needs to execute this update designation operation. .

  In addition, the key storage area M4 of the decedent corresponding to the deceased PS1 is automatically secured according to the action (the user registration operation) of the deceased PS1, for example.

[S309] Declaration of inheritance: (See Figure 8)
When an error occurs in the inherited PS1 and the inheritance becomes necessary, the heir PS2 inherits from the heir use terminal device 3B to the heritage inherited information processing device 2 through communication such as a telephone call or e-mail. Notify (send) the start declaration (inheritance start declaration message).

[S310] Acceptance start declaration reception: (see FIG. 8)
In the inheritance inheritance information processing apparatus 2 that has received the inheritance start declaration message from the heir-use terminal device 3B, the inheritance start contact DS1 and the inheritance start of the heir are made by communication such as automatic voice call or e-mail. Inheritance start declaration acceptance (inheritance start declaration acceptance message) is notified (transmitted) to the inherited person PS1 and the inheritor PS2 indicated in the time contact DS2.

  In addition, when the simultaneous notification at the time of accepting the inheritance start declaration is set to “necessary”, the inheritance inheritance information processing device 2 inherits all the inheritors PS2 indicated in the inheritance start contact DS2 of each heir. Notification of start declaration will be sent. The “required / unnecessary” setting of the simultaneous notification is made by the decedent PS1 in the definition file in the decedent use terminal device 3A and transmitted to the inheritance inheritance information processing device 2 in advance.

  Here, in the inheritance inheritance information processing device 2, the inheritance start declaration acceptance message is automatically transmitted to the inheritor use terminal device 3A and all the inheritor use terminal devices 3B. And the inheritance inheritance information processing apparatus 2 starts the inheritance stop time limit timer after transmitting the inheritance start declaration acceptance message. The inheritance inheritance information processing device 2 waits until the inheritance stop time limit timer reaches the set time limit. During the set period, the deceased PS1 performs the definition file in a format such as how many hours later in the decedent use terminal device 3A and transmits the definition file to the inheritance inheritance information processing device 2 in advance.

[S311] Inheritance start approval: (See FIGS. 8 and 13)
In the inheritance inheritance information processing device 2, the inheritance stop request message (inheritance stop request message) is received from either the inheritor-use terminal device 3A or all of the inheritor-use terminal devices 3B before the inheritance stop time limit timer reaches the set time limit. Is not received, an inheritance start approval (inheritance start approval message) is transmitted to the heir use terminal device 3B by communication such as automatic voice call or electronic mail.

  On the other hand, in the inheritance inheritance information processing device 2, when the inheritance stop request timer is received from either the inheritor use terminal device 3A or all of the inheritor use terminal devices 3B before the set stop time limit timer is reached. Inheritance start / stop (inheritance start / stop message) is transmitted to the heir use terminal device 3B by communication such as automatic voice call or electronic mail. Then, the inheritance inheritance information processing device 2 performs acquisition prohibition control that prohibits the heir PS2 from acquiring the encrypted inheritance decryption key KY4F stored in the key storage area M3 of the heir.

  The heir PS2 that has received the inheritance start approval message activates the decryption process of the inheritance decryption key KY4F in the heir use terminal device 3B. Then, in the heir use terminal device 3B, the encrypted inheritance decryption key KY4F stored in the key storage area M3 of the heir in the inheritance inheritance information processing device 2 is acquired.

  In the heir use terminal device 3B, the encrypted inheritance decryption key KY4F is decrypted using the inheritance decryption key KY6. Then, the decrypted inheritance decryption key KY4F is transmitted to the legacy inheritance information processing apparatus 2.

  In the inheritance inheritance information processing apparatus 2, the decrypted inheritance decryption key KY4F is received and stored in the key storage area M3 of the heir. As a result, as described later, the heir PS2 uses the decrypted inheritance decryption key KY4F stored in the heir's key storage area M3 in the heir use terminal device 3B. The encrypted inheritance necessary information IF3 stored in the storage area M4 can be decrypted.

  In the inheritance inheritance information processing apparatus 2, when the process of storing the decrypted inheritance / decryption key KY4F in the heir's key storage area M3 is completed, a decryption end notification (decryption end notification message) is sent to the heir use terminal device 3B. Send to. The decryption end notification message is transmitted to the heir-use terminal device 3A and all heir-use terminal devices 3B. Communication such as an automatic voice call or electronic mail can be applied to the transmission of the decryption end notification message.

  In the inheritance inheritance information processing device 2, after the decryption end notification message is automatically transmitted to the heir use terminal device 3B, the erasure expiration timer for the inheritance erasure information storage area M2 is started, and when the set expiration date is reached The erasure target information IF2, which is information to be erased at the time of inheritance, stored in the inheritance-erased information storage area M2 is erased. At this time, the assignment deletion information storage area M2 for the corresponding heir PS1 is also released.

[S312] Inheritance start: (See FIGS. 8 and 14)
The heir PS2 that has received the decryption end notification message from the inheritance inheritance information processing apparatus 2 is decrypted in the heir use terminal apparatus 3B and stored in the key storage area M3 of the inheritance of the inheritance inheritance information processing apparatus 2 The inheritance decryption key KY4F and the encrypted inheritance necessary information IF3 stored in the key storage area M4 of the inheritor are acquired. The acquired inheritance information IF3 includes the encrypted login ID of the inherited person PS1, the login PW of the inherited person PS1, and the inherited person management key KY1. Note that the login ID of the deceased PS1 and the login PW of the decedent PS1 are not essential as the inheritance necessary information IF3, and a login process described later can be omitted.

  The heir PS2 decrypts the inheritance necessary information IF3 using the acquired inheritance decryption key KY4F in the heir user terminal device 3B. As a result, the heir PS2 can obtain the decrypted login ID of the heir PS1, the login PW of the heir PS1, and the heir management key KY1, respectively.

  The heir PS2 logs in to the site of the legacy inheritance information processing apparatus 2 using the decrypted login ID and login PW of the inherited PS1 in the heir use terminal apparatus 3B, and is stored in the inheritance information storage area M1. The inheritance target information IF1 that is information to be inherited by the inherited person is acquired.

  Then, in the heir use terminal device 3B, the acquired inheritance target information IF1 is decrypted by using the decrypted heir management key KY1. Thereby, heir PS2 can obtain the inheritance information which inheritor PS1 takes over in heir use terminal device 3B.

[Effect in one embodiment]
The inheritance inheritance information processing apparatus 2 in the electronic inheritance inheritance information processing system 1 of the embodiment described above is information (heritage) that the inheritor PS1 inherits to the inheritor encrypted with the predetermined inheritance management key KY1. Inheritance information storage area M1 for storing inheritance target information IF1 that is inheritance information), an inheritor key storage area M3 for storing inheritance encryption key KY4A and inheritance decryption key KY4F as a pair of inheritance key KY4, and inheritor PS1 Includes a storage unit including a key storage area M4 of a heir to store the encrypted information IF3 necessary for the start of inheritance including the predetermined heir management key KY1.
In addition, when the inheritance inheritance information processing device 2 does not receive an inheritance stop request from either the heir use terminal device 3A or another heir use terminal device 3B within a predetermined period, The inheritance key KY4F stored in the heir's key storage area M3 is obtained and decrypted with the key KY6, and the inheritance stored in the heir's key storage area M4 with the decrypted inheritance / decryption key KY4F. The information IF3 necessary for the start is obtained and decrypted, and the inheritor PS1 included in the decrypted information IF3 necessary for the start of the inheritance uses the decedent management key KY1 that is determined in advance. A processor including means for enabling the heir user terminal device 3B to acquire and decode the inheritance target information IF1 transmitted from 3A and stored in the inheritance information storage area M1.
Therefore, in this inheritance inheritance information processing device 2, the inheritance target stored in advance by the inheritor use terminal device 3A in cooperation with the inheritor use terminal device 3A and the inheritor use terminal device 3B using a plurality of keys. It is possible to realize an epoch-making inheritance target information processing technique that can safely and reliably provide the information IF1 to the heir user terminal device 3B.

[Modification in one embodiment]
The electronic heritage inheritance information processing system 1 according to the embodiment described above can employ the modification shown in FIG.

  Compared with the electronic heritage inheritance information processing system 1 according to the embodiment shown in FIG. 4, the electronic heritage inheritance information processing system 1A of this modified example uses the inheritance decryption key KY4F stored in the key storage area M3 of the heir. The inherited decryption key KY6 for encryption is not used.

In other words, the inheritance inheritance information processing device 2 in the electronic heritage inheritance information processing system 1A of this modification is information (heritage inheritance) that the inheritor PS1 inherits to the inheritor encrypted with the inheritance management key KY1 determined in advance. Information), the inheritance information storage area M1 for storing the inheritance target information IF1, the inheritor key storage area M3 for storing the inheritance encryption key KY4A and the inheritance decryption key KY4F as a pair of the inheritance key KY4, and the successor PS1. A storage unit including an inherited key storage area M4 for storing the encrypted information IF3 necessary for starting the inheritance, including the predetermined inherited person management key KY1;
Further, when the inheritance inheritance information processing device 2 does not receive an inheritance stop request from either the heir use terminal device 3A or another heir use terminal device 3B within a predetermined period, the inheritance key information storage device 2 The inheritance decryption key KY4F stored in M3 is acquired, and the information IF3 necessary for starting the inheritance stored in the key storage area M4 of the heir is acquired and decrypted by the acquired inheritance decryption key KY4F. The inherited person PS1 included in the information IF3 required for the start of inheritance is transmitted from the inherited person using terminal device 3A with the predetermined inherited person management key KY1 and stored in the inherited information storage area M1. A processor including means for allowing the heir user terminal device 3B to acquire and decode the inheritance target information IF1.

  Therefore, also in this inheritance inheritance information processing apparatus 2, the inheritance target stored in advance by the inheritor use terminal apparatus 3A in cooperation with the inheritor use terminal apparatus 3A and the inheritor use terminal apparatus 3B using a plurality of keys. It is possible to realize an epoch-making inheritance target information processing technique that can safely and reliably provide the information IF1 to the heir user terminal device 3B.

[Other Modifications in One Embodiment]
In the electronic heritage inheritance information processing system 1 according to the embodiment described above, it is possible to adopt another modification described below.

  (1) In the electronic heritage inheritance information processing system 1 according to the embodiment described above, the inheritance key KY4 is a key pair composed of an encryption key and a decryption key, and the public key is used for encryption and decryption of the inheritance necessary information IF3. Cryptographic technology is adopted. However, a common key encryption technique may be employed for encryption and decryption of the inheritance key KY4 and the inheritance necessary information IF3 using the inheritance key KY4 as a single key. This modification can also be selectively employed in the electronic heritage inheritance information processing system 1A of the above-described modification.

  (2) The heritage inheritance information processing apparatus 2 that is an information storage server may cooperate with a Web server in order to achieve load distribution and function distribution of electronic heritage inheritance information processing. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

  (3) User information management when the inheritance start contact DS1 and the heir inheritance contact DS2 are not provided in the heir's key storage area M4 and the heir's key storage area M3. The contacts in the table TB1 may be used as the inheritance start contact DS1 and the inheritance start contact DS2 of the heir. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

  (4) The priority of the heir PS2 who requests the start of inheritance is the order of spouse, first rank legal heir, second rank legal heir, etc. However, when the lower-level heir PS2 requests to start the inheritance, the higher-level heir PS2 may be controlled to obtain permission. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

  (5) When the inheritance start of the above-described process S312 is performed, the owner of the information in the key storage area M4 of the decedent is replaced and changed so that it can be accessed with the login ID and login PW of the heir in the next time It is preferable to do. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

  (6) The heir PS1 can change the plaintext character string, that is, the passphrase, used as the heir management key KY1 and the erasure key KY2 in the heir use terminal device 3A at any timing. When the heir management key KY1 is changed, it is necessary to encrypt the inheritance necessary information IF3 stored in the key storage area M4 of the heir, but the necessary processing in the above-described electronic heritage inheritance information processing And so on. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

  (7) The heir PS2 can change the plaintext character string used as the inheritance decryption key KY6, that is, the passphrase, at any timing in the heir user terminal device 3B. When the inheritance / decryption key KY6 is changed, the inheritance / decryption key KY4F stored in the heir's key storage area M3 needs to be encrypted again. Should be executed.

  (8) The heir PS2 can also change the passphrase used as the inheritance key KY4 at an arbitrary timing in the heir user terminal device 3B. When the inheritance key KY4 is changed, a necessary process or the like in the electronic heritage inheritance information processing described above may be executed. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

  (9) The encryption processing of the inheritance target information IF1 and the erasure target information IF2 may be performed in the legacy inheritance information processing apparatus 2. This modification can be similarly applied to the electronic heritage inheritance information processing system 1A of the modification described above.

[Another modification]
The processing in the embodiment and the modification described above is provided as a computer-executable program, and can be provided via a non-transitory computer-readable recording medium such as a CD-ROM or a flexible disk, and further via a communication line.

  In addition, each process in the above-described embodiment and modification can be performed by selecting and combining any or all of the processes.

1 Electronic Heritage Inheritance Information Processing System 1A Electronic Heritage Inheritance Information Processing System 2 Heritage Inheritance Information Processing Device 3A Inheritor Use Terminal Device 3B Inheritor Use Terminal Device 4 Communication Network M1 Inheritance Information Storage Area M2 Inheritance Erase Information Storage Area M3 Inheritance Person key storage area M4 Decedent key storage area TB1 User information management table TB2 Key information management table TB3 Inheritance related information management table

Claims (23)

A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
A pair of takeover keys composed of a takeover encryption key and a takeover decryption key, and at least one second for storing at least one of the information necessary for the transferee to start encrypted takeover including a predetermined key A storage area including:
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received within a predetermined period, the takeover person uses the predetermined key to transfer the takeover from the second storage area. Obtaining and decrypting a decryption key, using the decrypted takeover decryption key, obtaining information necessary for starting the takeover from the second storage area, decrypting, and decrypting the information necessary for starting the takeover The transferee included includes obtaining and decrypting the transfer target information transmitted from the transferee using terminal device and stored in the first storage area with a predetermined key. A processor comprising means for enabling the takeover user terminal device;
A target information processing apparatus comprising: A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
A pair of takeover keys composed of a takeover encryption key and a takeover decryption key, and at least one second for storing at least one of the information necessary for the transferee to start encrypted takeover including a predetermined key A storage area including:
When not receiving a takeover stop request from any one of the successor-use terminal device and another successor-use terminal device during a predetermined period, the take-off decryption key is acquired from the second storage area, and the acquired A key determined by the succeeding person included in the information necessary for starting the takeover obtained by acquiring and decrypting the information necessary for starting the takeover from the second storage area using the takeover decryption key Means for enabling the takeover user terminal device to acquire and decrypt the takeover object information transmitted from the takeover user terminal device and stored in the first storage area. With a processor;
A target information processing apparatus comprising: A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
A storage unit comprising: a takeover key; and at least one second storage area for storing at least one of the information necessary for the transferee to start encrypted transfer including a predetermined key;
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received within a predetermined period, the takeover person uses the predetermined key to transfer the takeover from the second storage area. It is included in the information necessary for starting the takeover, which is obtained by decrypting the key, obtaining the information necessary for starting the takeover from the second storage area, using the decrypted takeover key. The succeeding person obtains and decrypts the succeeding target information transmitted from the succeeding person using terminal device and stored in the first storage area with a predetermined key. A processor including means for enabling a terminal device to be used;
A target information processing apparatus comprising: A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
A storage unit comprising: a takeover key; and at least one second storage area for storing at least one of the information necessary for the transferee to start encrypted transfer including a predetermined key;
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received in a predetermined period, the takeover key is acquired from the second storage area, and the acquired takeover is performed. With the key, the information necessary for starting the takeover is obtained from the second storage area and decrypted, and the succeeded person included in the decrypted information necessary for the start of takeover uses the key determined in advance. A processor including means for enabling the successor user terminal device to acquire and decrypt the takeover object information transmitted from the takeover user terminal device and stored in the first storage area; and ;
A target information processing apparatus comprising: The storage unit further includes a third storage area for storing information to be erased encrypted with another key predetermined by the successor;
The processor is configured to delete the information to be deleted stored in the third storage area after the information necessary for starting the transfer stored in the second storage area is acquired in the takeover user terminal device. Further comprising means for erasing,
The takeover target information processing apparatus according to claim 1, 2, 3, or 4. The at least one second storage area is
A first key storage area for storing the takeover key;
A second key storage area for storing information necessary for starting the handover,
The takeover target information processing device according to claim 1, 2, 3, 4 or 5. The takeover key stored in the second storage area is encrypted with a key predetermined by the heir;
The key predetermined by the transferee included in the information required for the start of transfer stored in the second storage area is encrypted by the transfer key;
The takeover target information processing device according to claim 1, 2, 3, 4 or 5. The takeover decryption key stored in the second storage area is encrypted with a key predetermined by the heir,
The key predetermined by the transferee included in the information required for the start of transfer stored in the second storage area is encrypted with the transfer encryption key;
The takeover target information processing apparatus according to claim 1, 2 or 5. The first key storage area and the second key storage area in the second storage area are configured for each successor.
The takeover target information processing apparatus according to claim 6. The second storage area further stores contact information at the time of start of takeover of the successor and contact information at the time of start of takeover of the successor.
The takeover target information processing device according to claim 1, 2, 3, 4 or 5. The succession target information includes information to be inherited by the heir as the successor,
The information necessary for starting the takeover includes information necessary for starting the inheritance,
The information to be deleted includes information to be deleted at the time of inheritance,
The information processing apparatus to be inherited according to claim 5. A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
A pair of takeover keys composed of a takeover encryption key and a takeover decryption key, and at least one second for storing at least one of the information necessary for the transferee to start encrypted takeover including a predetermined key Storage area,
A processor of the information processing apparatus to be taken over comprising a storage unit including:
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received within a predetermined period, the takeover person uses the predetermined key to transfer the takeover from the second storage area. Obtaining and decrypting a decryption key, using the decrypted takeover decryption key, obtaining information necessary for starting the takeover from the second storage area, decrypting, and decrypting the information necessary for starting the takeover The transferee included includes obtaining and decrypting the transfer target information transmitted from the transferee using terminal device and stored in the first storage area with a predetermined key. Perform the steps to enable the successor terminal device;
Information processing method to be taken over. A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
A pair of takeover keys composed of a takeover encryption key and a takeover decryption key, and at least one second for storing at least one of the information necessary for the transferee to start encrypted takeover including a predetermined key Storage area,
A processor of the information processing apparatus to be taken over comprising a storage unit including:
When not receiving a takeover stop request from any one of the successor-use terminal device and another successor-use terminal device during a predetermined period, the take-off decryption key is acquired from the second storage area, and the acquired A key determined by the succeeding person included in the information necessary for starting the takeover obtained by acquiring and decrypting the information necessary for starting the takeover from the second storage area using the takeover decryption key The step of enabling the takeover user terminal device to acquire and decrypt the takeover object information transmitted from the takeover user terminal device and stored in the first storage area is executed. ,
Information processing method to be taken over. A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
At least one second storage area for storing a takeover key and at least one of the information necessary for the transferee to start encrypted transfer including a predetermined key;
A processor of the information processing apparatus to be taken over comprising a storage unit including:
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received within a predetermined period, the takeover person uses the predetermined key to transfer the takeover from the second storage area. It is included in the information necessary for starting the takeover, which is obtained by decrypting the key, obtaining the information necessary for starting the takeover from the second storage area, using the decrypted takeover key. The succeeding person obtains and decrypts the succeeding target information transmitted from the succeeding person using terminal device and stored in the first storage area with a predetermined key. Perform the steps that enable the terminal device to be used;
Information processing method to be taken over. A first storage area for storing information to be transferred, which is encrypted by the successor with a predetermined key;
At least one second storage area for storing a takeover key and at least one of the information necessary for the transferee to start encrypted transfer including a predetermined key;
A processor of the information processing apparatus to be taken over comprising a storage unit including:
When the takeover stop request from either the succeedee user terminal device or another successor user terminal device is not received in a predetermined period, the takeover key is acquired from the second storage area, and the acquired takeover is performed. With the key, the information necessary for starting the takeover is obtained from the second storage area and decrypted, and the succeeded person included in the decrypted information necessary for the start of takeover uses the key determined in advance. Executing the step of enabling the successor user terminal device to acquire and decrypt the takeover object information transmitted from the takeover user terminal device and stored in the first storage area;
Information processing method to be taken over. The storage unit further includes a third storage area for storing information to be erased encrypted with another key predetermined by the successor;
The processor is configured to delete the information to be deleted stored in the third storage area after the information necessary for starting the transfer stored in the second storage area is acquired in the takeover user terminal device. Further executing the step of deleting
The takeover target information processing method according to claim 12, 13, 14, or 15. The at least one second storage area is
A first key storage area for storing the takeover key;
A second key storage area for storing information necessary for starting the handover,
The takeover target information processing method according to claim 12, 13, 14, 15 or 16. The takeover key stored in the second storage area is encrypted with a key predetermined by the heir;
The key predetermined by the transferee included in the information required for the start of transfer stored in the second storage area is encrypted by the transfer key;
The takeover target information processing method according to claim 12, 13, 14, 15 or 16. The takeover decryption key stored in the second storage area is encrypted with a key predetermined by the heir,
The key predetermined by the transferee included in the information required for the start of transfer stored in the second storage area is encrypted with the transfer encryption key;
The takeover target information processing method according to claim 12, 13 or 16. The first key storage area and the second key storage area in the second storage area are configured for each successor.
The takeover target information processing method according to claim 17. The second storage area further stores contact information at the time of start of takeover of the successor and contact information at the time of start of takeover of the successor.
The takeover target information processing method according to claim 12, 13, 14, 15 or 16. The succession target information includes information to be inherited by the heir as the successor,
The information necessary for starting the takeover includes information necessary for starting the inheritance,
The information to be deleted includes information to be deleted at the time of inheritance,
The takeover target information processing method according to claim 16.   A takeover target information processing program for causing a processor of a takeover target information processing apparatus to execute the takeover target information processing method according to any one of claims 12 to 22.