JP2002157167A - Electronic information filing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To add to data management and processing an encoding data management function for encoding data, a certifying process function for enabling data authentication, a authentication information management function for managing authentication information, and a authentication information checking function for checking authentication information. SOLUTION: This electronic information filing device manages substantial data and key data and fetches the substantial data which it is desired to use based on the key data. The device includes a data enciphering means for enciphering and storing the substantial data and a deciphering means for deciphering the enciphered substantial data using an input deciphering key it there is a request for using the data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic information filing apparatus for managing electronic information such as documents and drawings digitized in a company.

[0002]

2. Description of the Related Art FIG. 11 is a block diagram showing a configuration of a conventional electronic information filing apparatus. In the figure, reference numeral 1 denotes key data which is auxiliary information such as the name and storage location of the entity data 2 which is electronic information, and is stored in one of the database device 32 and the auxiliary storage medium 33 like the entity data 2. 3 is a search condition by the operator of the computer 30;
A data input means for inputting a search request to the data management means 5; a data output means 4 for outputting the retrieved entity data 2; an access destination selection means 6 for the data management means to access the key data 1; , 8 is a removable external storage medium in the auxiliary storage medium 33, 9 is an external storage medium in the same auxiliary storage medium 33, 10 is connected to the external communication utilization means 18 and the external communication connection device 19 Computer 11 to be used, the use environment information in which the storage location of the key data 1 is stored, 13 the search condition or the entity data management number when the key data 1 or the entity data 2 is taken out from the storage location, the access destination selection. The database access means 14 passed from the means 6 is a database based on the information from the database access means. Database management means for retrieving the storage information 7; 16 an external storage medium access device to which information is passed from the access destination selection means 6 when the storage location is a removable external storage medium 8 or 9; This is a data processing means having a compression / decompression means 81 for decompressing the substance data 2 when the data 1 contains information that the substance data 2 is compressed. The database device 32 and the auxiliary storage medium 33 may be on a computer operated by an operator or on another computer 10 connected to external communication means such as a network via the external communication connection device 19.

FIG. 12 is a block diagram showing details of the configuration of data management means in the configuration of a conventional electronic information filing apparatus. In FIG. 12, reference numeral 40 denotes search means to which data is passed when an operator inputs search conditions and a search request to the data management means 5 using the data input means 3;
Is key data access means for retrieving key data 1 via access destination selection means 6, 42 is entity data access means for accessing entity data 2 and extracting entity data via access destination selection means 6, 43 is operation When a member inputs a data update request and key data 1 and entity data 2 of data to be updated from the data input means 3, the update means passes through before the data is passed to the search means 40, and 47 denotes data to be updated from another computer This is communication information utilization means to which key data 1 and entity data 2 are input.

Next, the operation will be described. When the operator who operates the computer 30 wants to use certain electronic information, the data input unit 3 uses the data input unit 3 to input auxiliary information such as the name of the electronic information to be used as a search condition, and inputs it to the data management unit 5 together with the search request. The data management unit 5 accesses the key data 1 through the access destination selection unit 6 and extracts one or a plurality of key data 1 that match the search condition from the plurality of key data 1. At this time, since the storage location of the key data 1 is stored in the usage environment information 11, the data management means 5 reads this information and specifies the storage location of the key data 1. Since the retrieved key data 1 includes information on the storage location of the entity data, the entity data 2 is extracted via the access destination selecting means 6 based on the information. The extracted entity data 2 is output via the data output means 4. If the key data 1 contains information that the entity data 2 is compressed when the entity data 2 is extracted, the entity data 2 is expanded using the compression / expansion means 81 in the data processing means 21.

Next, the operation of the data management means 5 will be described. When the operator uses the data input unit 3 to input additional information such as the name of the electronic information to be used as a search condition and inputs it to the data management unit 5 together with the search request, the search condition and the search request are passed to the search unit 40. The search means 40 searches the key data 1 via the key data access means 41 and the access destination selection means 6 based on the storage location of the key data 1 recorded in the usage environment information 11. The search result is obtained by the access destination selection means 6 and the key data access means 41.
Is passed to the search means 40 via The search unit 40 accesses the entity data 2 via the entity data access unit 42 and the access destination selection unit 6 based on the storage location of the entity data 2 stored in the key data 1, and retrieves the entity data 2. Take out. The extracted entity data 2 is output to the data output means 4.

Next, the operation when updating data is shown in FIG.
2 will be described. When the operator inputs the data update request and the key data 1 and the entity data 2 of the data to be updated from the data input means 3, the search means 4 via the updating means 43.
0 is passed the request. The retrieval means 40 retrieves and updates the key data 1 to be updated via the key data access means 41 and the access destination selection means 6 based on these,
Entity data access means 42, access destination selection means 6,
The entity data 2 to be updated is updated via. At this time, the key data 1 and the substantive data 2 of the data to be updated are obtained from the auxiliary storage medium and the access device 33 thereof even if the key data 1 and the entity data 2 are obtained from another computer 10 using the communication information utilization means 47 without being input by the operator. May be obtained. The instruction is given by the operator, and the acquisition is performed by the updating means 43.

[0007] The key data 1,
Alternatively, a method of extracting the entity data 2 from the storage location will be described. When the storage location is the database device 32, the key data 1 is stored in the database access unit 13.
Or the entity data management number stored in advance in association with the entity data 2 to specify the entity data 2. Then, the information is sent to the database management unit 14, which searches the database information based on the information, and passes the key data 1 or the entity data 2 as the search result to the database access unit 13. The database access unit 13 passes the data to the access destination selection unit 6. When the storage location is the removable external storage medium 8 or the external storage medium 9, the storage location such as the name of the medium in which the key data 1 or the entity data 2 is stored and the directory information are passed to the external storage medium access device 16. Then, the external storage medium access device 16 retrieves the storage information of the removable external storage medium 8 or the external storage medium 9 to extract the key data 1 or the entity data 2 and returns it to the access destination selecting means 6. If the storage location is a database device connected to another computer 10 or an auxiliary storage medium and its access device, the external communication using means 18
Another computer 10 via the external communication connection means 19
The key data 1 and the substantive data 2 are extracted from those devices connected above in the same manner.

[0008] The characteristics of the data updating method in the conventional electronic information filing apparatus will be described. FIG. 13 shows a data update function of a conventional electronic information filing apparatus.
The master data 51 is managed in the host computer 50, and when the data is updated, the update information is distributed to the computer 30 (having the electronic information filing device) by the data transfer 55. At this time, the data distributed at that time is distributed, and the name of the data is A
An example is shown in the transfer contents 56 in the case of "1". JP 0
JP-A-3-282746 discloses a similar updating method. The backup data will be described. The backup of the key data 1 and the entity data 2 is output as backup data 54 using the data output means 4 in the computer 30 and stored. When a failure or the like occurs and the key data 1 and the entity data 2 stored in the computer 30 are damaged or lost, the backup data 54 is input from the data input means 3 to restore the data. Alternatively, all the data is transferred from the host computer 50 to the computer 30 and input from the data input means 3 to restore the data.

The features of the data management system in the conventional electronic information filing device will be described. FIG. 14 shows a data management function of a conventional electronic information filing apparatus.
When the entity data 2 to be managed is stored in the external storage medium 9 incorporated in the device 60 for accessing a plurality of external storage media, the operator operates the electronic information filing apparatus to execute the entity data 2. When the (substance data 2 in the external storage medium 9A in the example of FIG. 14) is used, the substance data 2 is copied to another auxiliary storage medium 62. From the next operation, even when the switching device 61 inside the device 60 that accesses a plurality of external storage media is connected to the external storage medium 9 other than A, the connection destination of the switching device 61 is changed to the external storage medium of A. 9, the entity data 2 used previously can be used from the other auxiliary storage medium 62. Japanese Patent Application Laid-Open No. 05-28202 discloses a similar data management method.

The features of the security function in the conventional electronic information filing device will be described. FIG. 15 shows a security function of a conventional electronic information filing apparatus. Key data 1 or entity data 2 to be managed
Is stored in the database device 32, the operator can use the key data 1 or the entity data 2 by inputting the connect password of the database device 32 through the data input means. When the key data 1 or the entity data 2 to be managed is stored in another computer 10, the operator logs in to the other computer 10 via the data input unit, and the key data 1 or the entity data 2 is stored. Data 2 is available.

The characteristics of the method of using the external communication connection device in the conventional electronic information filing device will be described.
FIG. 16 shows a method of using an external communication connection device of a conventional electronic information filing device. Key data 1 to be managed
Alternatively, when the entity data 2 is stored on another computer 10, a connection relationship such as login is established between the computer 30 used by the operator and the other computer 10 in advance. Japanese Patent Application Laid-Open No. 04-314146 discloses a method of using data on a network, which has a description similar to that.

The features of the medium selection function in the conventional electronic information filing device will be described. FIG. 17 shows a medium selection function of a conventional electronic information filing apparatus. When the entity data 2 to be managed is stored in the database device 32, the key data 1 of the entity data 2 includes the database name 14 in the database device 32.
1,142 have been marked. This database device 3
In order to use 2, a connection relationship needs to be established so as to be used from the access destination selection unit 6.

[0013]

The conventional electronic information filing apparatus has the above-mentioned configuration and has the above-mentioned functions. Therefore, when updating data, it is necessary to store the master data. There is a problem that it is necessary to connect to a certain host computer, and an apparatus cannot be constructed on a computer not connected to a network. In addition, in the event that key data or entity data being used is lost, it is necessary to transfer all data from the host computer, resulting in high transfer costs and network congestion during transfer. Since only the latest data is sent in sequence, even if the backup data that was stored is restored, only the information that has been updated so far since the last backup was taken and only that data was sent from the host computer. Has to be selected and transferred, which is troublesome. Also, even if the update information is recorded on a removable recording medium,
Since only the latest update information is always sent, if it is used as backup data, there is a problem that all removable recording media sent in the past must be stored. Updating of data requires two processes: a process of outputting update information in a department that manages master data, and a process of updating the output update information by inputting it to an electronic information filing apparatus that updates the information. There was a problem that it was bothersome.

Further, in the data management method, only data used once is copied to a convenient medium when data is taken out. Therefore, even data that is used less frequently is copied to a convenient medium when data is taken out, resulting in low efficiency. There was a problem of bad. Further, when a plurality of external storage media such as a magneto-optical disk are used, there is a problem that if the number of external storage media to be handled increases, it takes time to switch the external storage media to be accessed inside a device that accesses them.

As for the data security function, the password of the database storing the data,
Since a computer log-in function and the like are used, there is a problem that it is not possible to individually secure data or to secure individual users.

Further, as for the method of using the external communication device, when another computer is used, there is a problem that it is necessary to establish a connection relationship such as login so that data can be exchanged online.

When storing data in a database device, it is necessary to store the data in one connected database device.

The present invention has been made in order to solve the above-mentioned problems. An encrypted data management function for encrypting data in data management and processing, an authentication processing function for enabling data authentication, and It is intended to add an authentication information management function for managing authentication information and an authentication information confirmation function for checking authentication information.

[0019]

An electronic information filing apparatus according to claim 1 manages entity data and key data,
An electronic information filing device that searches for and retrieves entity data that is desired to be used based on key data. Means for decoding the entity data using the input decoding key.

According to a second aspect of the invention, there is provided an electronic information filing apparatus.
In an electronic information filing apparatus which manages entity data and key data, and retrieves and retrieves entity data desired to be used based on the key data, an authentication process for performing a digital signature when registering or updating electronic information as the entity data Means, authentication information management means for managing the authentication information in key data, and authentication confirmation means for confirming whether the entity data has been tampered with when the entity data is taken out.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 shows a configuration diagram of an electronic information filing apparatus according to Embodiment 1 of the present invention. FIG. 2 shows a configuration diagram of the data management means in the configuration diagram of the electronic information filing apparatus of FIG. FIG. 3 shows a configuration diagram of the data processing means. FIG. 4 shows a data update function of the electronic information filing apparatus. Recording medium 8 removable by another computer 10
The update information of the data is stored in the computer, and the removable recording medium 8 is installed in the computer 30 (having the electronic information filing device) which is physically operated by the operator.
Next, the operator operates the electronic information filing device to update the update information to data on the electronic information filing device. It is assumed that the storage content of the removable recording medium 8 in which the update information is stored is the latest, for example, not only the update information as of today but also the update information one month ago and the update information two months ago is stored.

A method of updating data from the removable recording medium 8 will be described with reference to FIGS. The operator passes the update of the data and the fact that the update information is present on the removable recording medium 8 to the updating means 43 from the data input means 3 to the data updating means 43. At this time, data such as a name for identifying the removable recording medium 8 is transferred at the same time. Update means 4
3 passes data such as a name for identifying the removable recording medium 8 to the medium management means 45 through the search means 40. Next, the medium management unit 45 sends data such as a name for identifying the recording medium 8 to the medium selection unit 15 via the access destination selection unit 6. The medium selection unit 15 checks whether the removable recording medium 8 having data such as a name for identifying the removable recording medium 8 via the external storage medium access device 16 is connected. If there is no connection relationship, the effect is returned to the medium management means 45, and the medium management means 45 outputs the contents to the data output means 4. If there is a connection relationship, the effect is returned to the medium management means 45.
The medium management means 45 passes the contents to the updating means 43. The updating means 43 sends an inquiry request for the version of the update information to the version managing means 44. The version management means 44 accesses the update information of the auxiliary storage medium in which the update information is stored via the access destination selection means 6, and extracts the update information at what point in time. The version management means 44 outputs the information to the data output means 4. The operator checks the output and inputs the version information of the update information to be updated from the data input unit 3 to the update unit 43. In the updating means 43, the version managing means 44
Send version information to In the version management means, only the update information of the version that matches the information of the version is extracted and passed to the updating means 43. The updating unit searches for key data 1 that needs to be updated with the update information via the searching unit 40 and the access destination selecting unit. The searched key data 1 and the entity data 2 in the storage location indicated by the contents are updated based on the update information.

According to this embodiment, data such as a name for identifying a medium is stored in a removable auxiliary storage medium, and the auxiliary storage medium is identified by the medium management means. Available. The update information is stored in the auxiliary storage medium for a plurality of versions, such as one month before and two months ago, and the version management means can selectively update to the version specified by the operator at the time of update. This allows the data to be returned to any previous version.

Embodiment 2 FIG. FIG. 10 shows a data update function of the electronic information filing apparatus. When data is updated in the computer 30 (having the electronic information filing device) operated by the operator, the content of the removable recording medium 8 in which the update information is stored is the latest, for example, only the update information as of today. Instead, it is assumed that update information one month ago and update information two months ago were also stored. FIG.
Shows a data update function of the electronic information filing apparatus. Data update information is stored in a removable recording medium 8 by another computer 10, and the removable recording medium 8 is installed in a computer 30 (having an electronic information filing device) which is physically operated by an operator. You. Next, the operator operates the electronic information filing device to update the update information to data on the electronic information filing device.

A method for extracting data from the removable recording medium 8 will be described with reference to FIGS. The operator informs the search means 40 from the data input means 3 that the operator wants to use the data and the key data search conditions. The search means 40 sends a request for confirming the currently available medium to the medium management means 45. The medium management unit 45 confirms the name of the medium of the currently connected removable recording medium 8 through the access destination selection unit 6. If a medium is connected, the name of the medium is returned to the search means 40. If the removable recording medium 8 is connected, the search means 40 searches the key data 1 in the medium through the key data access means 41 and the access destination selection means 6. If the key data 1 is found, the entity data 2 having the name included in the key data 1 is extracted from the same removable recording medium 8 via the entity data access means 42 and the access destination selection means 6. If the key data 1 is not found, the key data access means 41 is sent to the storage location of the key data stored in the use environment 11.
Access is made through the access destination selection means 6 to search for key data. If the key data 1 is found, the entity data 2 is extracted from the storage location included in the key data 1 via the entity data access means 42 and the access destination selection means 6. The search means 40 outputs the retrieved entity data 2 from the data output means 4.

According to this embodiment, when there is an electronic information filing apparatus A for storing and using data on a removable recording medium, this medium is connected to another electronic information filing apparatus B and the operator By changing the key data search condition, the search performed by the electronic information filing apparatus A can be performed by the electronic information filing apparatus B.

Embodiment 3 1 and 2, the access frequency information 26 will be described. When the operator operates the electronic information filing apparatus to access the key data 1 or the entity data 2, the key data access unit 41 accesses via the entity data access unit 42. At this time, information identifying the accessed key data 1 and entity data 2 and the contents of the access are sent to the frequency management means 48. The frequency management means 48 stores this information in the access frequency information 26 through the access destination selection means.

The data management function will be described with reference to FIGS. 1, 2, 3 and 5. It is assumed that the removable storage medium 8 and the storage medium 9 shown in FIG. 5 have frequently accessed data. Entity data access means 4 of FIG.
2 or the key data access means 41, the frequency management means 48 is notified of the access. The frequency management means 48 acquires the access frequency of the data up to now from the access frequency information 26, and if the frequency is higher than the high usage reference frequency set in advance in the usage environment information 11, the data is stored at a high access speed. Move to the external storage medium 70. Conversely, if the frequency is lower than the low usage reference frequency preset in the usage environment information 11, the data is stored in the external storage medium 70 with a large free space or the external storage medium 70 with a low access frequency determined from the access frequency information. Go to At this time, the data is compressed by the compression / expansion means 95 of the data processing means 21.

According to this embodiment, frequently used information can be extracted at a high speed, and the time for searching and extracting data can be shortened. In addition, by compressing only infrequently used data or storing it in a large-capacity storage medium, it is possible to increase the amount of data that can be stored without delaying the retrieval time of frequently used data.

Embodiment 4 The data management function will be described with reference to FIG. 1, FIG. 2, and FIG. In FIG. 6, three external storage media 8 (name A, name B, name C)
There is a device 60 for accessing a plurality of included external storage media. It is assumed that data is stored in each external storage medium. It is assumed that data is accessed from the data management means to the external storage medium 8. At this time, the medium checking means 45 of FIG. 2 checks the free space of the storage space and the area of the storage space being used in each of the external storage media 8 of A, B and C. In the medium checking means, if the free area and the used area are calculated together, for example, if the data stored in the external storage medium 8 of A is moved to the external storage medium 8 of B or C, If all the data stored in the external storage medium 8 can be deleted, the data is moved using the access destination selecting means.

According to this embodiment, even when storing the same amount of data, the number of external storage media to be used can be reduced, so that the system can be used at low cost.

Embodiment 5 The security function will be described with reference to FIG. 1, FIG. 2, FIG. 3, and FIG. In FIG. 7, it is assumed that the entity data 2 is the encrypted data 102. When the operator issues a request to retrieve data to the electronic information filing apparatus, the data input unit 3 inputs a data search condition, a search request, and a decryption key to the search unit 40. This decryption key is passed to the decryption means 91 in the data processing means 21. The key data is accessed from the search unit 40 through the key data access unit 41 and the access destination selection unit 6, and the key data 1 that matches the search condition is searched. The search means 40 extracts the entity data 2 from the storage location of the entity data 2 stored in the key data 1 as the search result through the access destination selecting means 6, the entity data processing means 21, and the entity data access means 42. As described above, since the entity data 2 is the encrypted data 102 in the fifth embodiment, when passing through the decryption unit 92 in the data processing unit 21, the decryption key The original entity data 2 is decrypted using
Convert to The entity data 2 is output from the search means to the data output means. When the operator makes a request to input data to the electronic information filing apparatus, data to be input from the data input means 3 to the search means 40, key data, information of a place where the input data is to be stored,
Enter the encryption key. The key data is stored in the storage location of the key data 1 from the key data access means 41 through the access destination selection means 6 together with information on the place where the input data is to be stored. This storage location is described in the usage environment information 11. The data to be input is sent to the place where the data to be input is to be stored.
2. Stored through the entity data processing means 21 and the access destination selecting means 6. When the data passes through the encryption means 91 in the data processing means 21, the data is encrypted using the encryption key.

According to this embodiment, when data is encrypted, an operator who does not know the decryption key does not correctly display the data even if the data is searched, so that the secrecy of the data can be protected.

Embodiment 6 FIG. The security function will be described with reference to FIG. 1, FIG. 2, FIG. 3, and FIG. In FIG. 7, it is assumed that the authentication information 103 of the entity data 2 is stored in the key data 1. When the operator issues a request to retrieve data to the electronic information filing apparatus, the data input unit 3 inputs data search conditions, a search request, and public key identification information to the search unit 40. This public key specifying information is passed to the authentication confirmation means 94 in the data processing means 21. The key data is accessed from the search means 40 through the key data access means 41 and the access destination selection means 6,
The key data 1 that matches the search condition is searched. Search means 4
0, the access destination selecting means 6, from the storage position of the entity data 2 stored in the key data 1 as the search result,
Entity data processing means 21, Entity data access means 4
2, the entity data 2 is extracted. When passing through the authentication confirming means 94 in the data processing means 21, the public key for performing the authentication confirmation is specified and extracted from the public key information using the public key specifying information which has arrived in advance, and the authentication is confirmed and confirmed. The result is output from the data output means 4. The entity data 2 is output from the search means to the data output means. And
When the operator makes a request to input data to the electronic information filing apparatus, data to be input from the data input means 3 to the search means 40, key data, information of a place where the input data is to be stored, and creation of authentication information Enter the key. The key data is stored in the storage location of the key data 1 from the key data access means 41 through the access destination selection means 6 together with information on the place where the input data is to be stored. This storage location is described in the usage environment information 11. The input data is stored in a place where the input data is to be stored, through the entity data access unit 42, the entity data processing unit 21, and the access destination selection unit 6.
When the data passes through the authentication information creation means 93 in the data processing means 21, the data is digitally signed with an authentication information creation key to create authentication information. The created authentication information is returned to the search means 40 in the data management means 5.
The search means 40 accesses and adds the authentication information to the key data stored earlier by the same route.

According to this embodiment, by using the authentication information data, it is possible to confirm whether or not the data to be searched has been tampered with, and the management data can be safely managed.

Embodiment 7 The external communication use function will be described with reference to FIGS. 1, 2, 3, and 8. FIG. In FIG. 8, when using another computer 10 from the computer 30 used by the operator, access is made as follows. When an external computer is accessed from the search means 40 in FIG. 2, specific information such as the machine name of another computer 10 to be used is transmitted to the communication information use means 47. From the communication information using means 47, the access destination selecting means 6
Via the external communication utilization means 18 and the external communication connection means 19 in FIG. 1 to determine whether or not there is a connection relationship with another computer 10 specified by the specific information. If there is no connection, the access destination selecting means 6
Is sent to the connection means 17 of FIG. The connection means 17 connects to another computer via the external communication utilization means 18 and the external communication connection means 19 by a connection method (designated by a connection command) such as login. It informs the search means 40 that it can be used from the communication information use means 47. The search means 40 accesses an external computer.

According to this embodiment, when using an electronic information filing apparatus using a plurality of machines,
The operator need not be conscious of connection processing such as logging in to the machine.

Embodiment 8 FIG. The database access function will be described with reference to FIG. 1, FIG. 2, FIG. 3, and FIG.
FIG. 9 shows a flow in which an operator performs an operation and retrieves data stored in a database. An operator inputs a search condition and a search request from the data input unit 3 to the search unit 40. The key data 1 from the search means 40 via the key data access means 41 and the access destination selection means 6
To access. The key data 1 that matches the search condition is extracted. If there is a database type in the storage location of the entity data included in the key data 1, the information is passed to the database selection unit 12 through the access destination selection unit. The database selection means connects to the database of the passed database type. Information necessary for the connection is obtained from the usage environment information 11 or input by an operator. The database selection unit 12 informs the search unit 40 that the database is available after the connection. The search unit 40 accesses the database device 32 via the entity data access unit 42 and the access destination selection unit 6. The retrieval means 40 extracts the entity data 2 and
Output to the data output means 4.

According to this embodiment, it is possible to search for data already stored separately in a plurality of types of databases.

[0040]

The electronic information filing apparatus according to claim 1, wherein the electronic information filing apparatus manages entity data and key data, and retrieves and retrieves the entity data desired to be used based on the key data. Data encryption means for encrypting and saving data, and means for decrypting the encrypted entity data using a decryption key input when a request to use the data is provided,
Since the configuration is provided with, individual maintenance management becomes possible.

According to a second aspect of the invention, there is provided an electronic information filing apparatus.
In an electronic information filing apparatus which manages entity data and key data and retrieves and retrieves the entity data desired to be used based on the key data, a digital signature is performed when electronic information is registered or updated as the entity data. A configuration comprising: authentication processing means; authentication information management means for managing the authentication information in the key data; and authentication confirmation means for checking whether the substance data has been falsified when the substance data is taken out. As a result, unauthorized tampering of data can be detected, and important data can be exchanged using the electronic information filing device.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of Embodiments 1 to 8 of the present invention.

FIG. 2 is a configuration diagram of data management means according to the first to eighth embodiments of the present invention.

FIG. 3 is a configuration diagram of data processing means according to the first, third, fifth, and eighth embodiments of the present invention.

FIG. 4 is an explanatory diagram of a data update function according to the first and second embodiments of the present invention.

FIG. 5 is an explanatory diagram of a data management function according to a third embodiment of the present invention.

FIG. 6 is an explanatory diagram of a data management function according to a fourth embodiment of the present invention.

FIG. 7 is an explanatory diagram of a security management function according to the fifth and sixth embodiments of the present invention.

FIG. 8 is a method for using the external communication connection device according to the seventh embodiment of the present invention.

FIG. 9 is an explanatory diagram of a medium selection function according to an eighth embodiment of the present invention.

FIG. 10 is an explanatory diagram of an update function according to the second embodiment of the present invention.

FIG. 11 is a configuration diagram of a conventional electronic filing apparatus.

FIG. 12 is a configuration diagram of a data management unit included in a conventional electronic filing apparatus.

FIG. 13 is an explanatory diagram of a data update function in a conventional electronic filing device.

FIG. 14 is an explanatory diagram of data management means in a conventional electronic filing device.

FIG. 15 is an explanatory diagram of a security management function in a conventional electronic filing device.

FIG. 16 is a diagram illustrating a method of using an external communication connection device in a conventional electronic filing device.

FIG. 17 is an explanatory diagram of a medium selection function in a conventional electronic filing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Key data, 2 entity data, 3 data input means, 4 data output means, 5 data management means, 6 access destination selection means, 7 database information, 8 removable external storage medium, 9 external storage medium, 10 other computers , 11 usage environment information, 13 database access means, 14 database management means, 15 medium selection means, 16 external storage medium access device, 17
Connecting means, 18 external communication using means, 19 external communication connecting device, 21 data processing means, 24 revised key data, 25 revised entity data, 26 access frequency information,
28 public key information, 30 computer, 31 management information, 32 database device, 33 auxiliary storage medium and its access device, 40 search means, 41 key data access means, 42 entity data access means, 43
Updating means, 44 version management means, 45 medium management means, 4
7 communication information utilization means, 48 frequency management means, 49 authority confirmation means, 51 master data, 52 key data,
53 entity data, 54 backup data, 60
Device for accessing a plurality of external storage media, 61 Switching function, 62 Other auxiliary storage media, 66 Unmigrated data, 67 All data migration processing, 68 Temporary storage function, 7
0 external storage medium with high access speed, 71 frequently accessed, data 72 external storage medium with much free space, 73 infrequently accessed data, 90 data processing information access means, 91 encryption means, 92 decryption means, 93 authentication information creation means, 94 authentication confirmation means, 9
5 Compression / expansion means, 102 Encrypted data, 103 Authentication information of entity data, 104 Encryption, input of key data for decryption, 105 Data encryption, decryption, 106 Input of key data for generating authentication information, 107 authentication Information creation,
108 Confirmation of authentication information by public key, 154 Physical delivery, 202 Update information, 203 Confirmation of update information, 2
04 Priority access.

Claims (2)

[Claims] 1. Electronic information (hereinafter referred to as entity data)
Electronic information filing that manages ancillary information (hereinafter, referred to as key data) such as the name of the entity data, search key information, storage location, etc., and retrieves and retrieves the entity data to be used based on the key data In the apparatus, data encryption means for encrypting the entity data and storing the encrypted data,
Means for decrypting the encrypted entity data using an input decryption key when there is a request to use the data, the electronic information filing apparatus comprising: 2. An electronic information filing apparatus which manages entity data and key data, and retrieves and retrieves the entity data desired to be used based on the key data, wherein electronic information is registered or updated as the entity data. Authentication processing means for digitally signing the authentication data, authentication information management means for managing the authentication information in the key data, and authentication confirmation means for confirming whether the entity data has been tampered with when the entity data is taken out. An electronic information filing apparatus comprising: