JP2004348565A - Environment restoration method, client, environment restoration program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restore a user's use environment to a client in a short time as compared to before at the beginning of use. <P>SOLUTION: When a user name and a password are inputted in the case that an initially set use environment stored in a hard disk 22 is copied to a hard disk 21, the client 20 transmits them to a server 30 to require authentication. When the authentication succeeds, the server 30 transmits user's encrypted use environment information stored in a hard disk 32 to the client 20. The client 20 reads a private key stored in a user's IC card by an IC card processing part 24, decrypts the encrypted use environment information by the private key, and changes the initially set use environment copied to the hard disk 21 into the user's use environment by an environment restoration part 25 on the basis of the use environment information to restore the user's use environment to the hard disk 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an environment restoration system for restoring a user's usage environment to a client.
[0002]
[Prior art]
Conventionally, as an environment restoration system for restoring a user's use environment to a client, when a client restores a user's use environment based on user's use environment information stored in a server, a user's file stored in the server is restored. An environment restoring system in which a client acquires from a server is known (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2002-140295
[Problems to be solved by the invention]
However, in the conventional environment restoration system described above, when the client restores the user's usage environment based on the information on the user's usage environment stored in the server, not only necessary files but also unnecessary files are used. Since the client obtains from the server, there is a problem that unnecessary time is required when the client restores the user's use environment.
[0005]
Therefore, an object of the present invention is to provide an environment restoring method, a client, an environment restoring program, and a recording medium which can restore a user's use environment to a client in a shorter time than before in use.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an environment restoring method of the present invention includes a step of restoring the use environment by acquiring a file other than a specific file from the server based on information of the use environment stored in the server, Displaying the existence of the specific file under the specified use environment, and acquiring the specific file from the server when receiving an instruction to acquire the specific file.
[0007]
With this configuration, a specific file is acquired from the server when an instruction to acquire the file is received instead of when restoring the environment. The usage environment of the user can be restored to the client in a shorter time than before in the start of use.
[0008]
According to the embodiment of the present invention, when the encrypted specific file is obtained from the server, the encrypted specific file is decrypted.
[0009]
With this configuration, since the client obtains the encrypted specific file from the server, the possibility of information leakage in the specific file is reduced as compared with the case where the client obtains the unencrypted specific file from the server. Can be reduced.
[0010]
Further, the client according to the present invention comprises: environment restoring means for acquiring a file other than a specific file from the server based on information on the use environment stored in the server and configured by a group of files to restore the use environment; Existence display means for displaying the existence of the specific file under the use environment restored by the use environment, and file acquisition means for acquiring the specific file from a server when receiving an instruction to acquire the specific file. ing.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
As shown in FIG. 1, an environment restoration system 10 according to an embodiment of the present invention includes a client 20 and a server 30 that can communicate with each other via the Internet 11.
[0013]
The client 20 includes a hard disk 21 that restores the user's use environment to be a user's work area, a hard disk 22 that stores an initial use environment and is set to be non-rewritable, and an operation unit 23 such as a keyboard and a mouse. An IC card processing unit 24 that reads a secret key from a user's IC (Integrated Circuit) card that stores a secret key used for secret key encryption, and information on a user's use environment that is stored in a server 30 and is configured by a file group An environment restoring unit 25 that acquires a file other than the specific file from the server 30 based on the usage environment information and restores the user's operating environment to the hard disk 21 based on the usage environment information. A presence display section 26 for displaying the presence of a file with an icon under the usage environment; A file acquisition unit 27 that acquires a file from the hard disk 21 or the server 30 when receiving an instruction to acquire a file; and a file storage unit 28 that stores a file in the hard disk 22 or the server 30 when an instruction to store a file is received. And
[0014]
The user's usage environment information is information of a part of the user's usage environment that is different from the default usage environment stored in the hard disk 22, and includes file system information such as a file name and an address.
[0015]
Further, the file acquisition unit 27 acquires only a specific file associated with a predetermined directory from the server 30. Further, when acquiring an encrypted specific file (hereinafter, referred to as an encrypted file) from the server 30, the file acquiring unit 27 decrypts the encrypted file with the secret key stored in the user's IC card. It has become.
[0016]
In addition, the file storage unit 28 of the client 20 causes the server 30 to store only a specific file associated with a predetermined directory. Further, the file storage unit 28 has a configuration in which, when the specific file is stored in the server 30, the specific file is encrypted with a secret key stored in the user's IC card.
[0017]
Here, the environment restoring unit 25, the existence display unit 26, the file acquisition unit 27, and the file storage unit 28 include a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (not shown). Is composed of general computer components.
[0018]
The server 30 includes an authentication unit 31 for performing authentication, and a hard disk 32 that stores encrypted use environment information (hereinafter, referred to as “encrypted use environment information”) and an encrypted file.
[0019]
Here, the authentication unit 31 is configured by components of a general computer such as a CPU, a ROM, and a RAM (not shown).
[0020]
Next, the operation of the environment restoration system of the present embodiment will be described.
[0021]
First, the operation of the environment restoration system when the user's use environment is restored to the client 20 will be described.
[0022]
When the user enters a user name and a password from the operation unit 23 when the default usage environment stored in the hard disk 22 is copied to the hard disk 21, the client 20 transmits the input user name and the password to the server. 30 and requests the server 30 for authentication.
[0023]
Next, the server 30 performs authentication by the authentication unit 31 based on the user name and the password transmitted from the client 20, and when the authentication is successful, transmits the user's encrypted use environment information stored in the hard disk 32 to the client 20. I do.
[0024]
Next, the client 20 reads the secret key stored in the user's IC card by the IC card processing unit 24, decrypts the encrypted use environment information transmitted from the server 30 with the read secret key, and The user's use environment is restored to the hard disk 21 by changing the initial use environment copied to the hard disk 21 to the user's use environment based on the environment information by the environment restoration unit 25.
[0025]
When restoring the usage environment of the user to the hard disk 21, the client 20 acquires a part of the user's encrypted file stored in the hard disk 32 of the server 30 in the hard disk 21 and stores the part of the encrypted file in the user's IC card. It may be decrypted using a secret key.
[0026]
Next, the operation of the environment restoration system when the presence of the user's file is displayed as an icon by the presence display unit 26 of the client 20 will be described.
[0027]
As shown in FIG. 2, the presence display unit 26 of the client 20 receives an instruction from the operation unit 23 to display the presence of a file in a directory designated by the user (hereinafter, referred to as a designated directory) by an icon from the user. (Step S41), the directory name of the designated directory is passed to the operation system 20b by the application 20a (Step S42).
[0028]
Next, the presence display unit 26 acquires the file name of the file in the designated directory from the file system by the operation system 20b based on the directory name passed to the operation system 20b by the application 20a (step S43), and acquires the acquired file. The name is passed to the application 20a by the operation system 20b (step S44).
[0029]
Then, based on the file name passed to the application 20a by the operation system 20b, the presence display unit 26 displays the presence of the file in the designated directory by an icon using the application 20a (step S45).
[0030]
Next, the operation of the environment restoration system when a user file is stored in the hard disk 21 or the server 30 by the file storage unit 28 of the client 20 will be described.
[0031]
As shown in FIG. 3, the file storage unit 28 of the client 20 receives an instruction to store a file designated by the user (hereinafter, referred to as a designated file) from the operation unit 23 by the user (step S51). And the file name of the designated file are passed to the operation system 20b by the application 20a (step S52), and further passed to the hard disk driver (hereinafter, referred to as HD driver) monitoring unit 20c by the operation system 20b (step S53).
[0032]
Next, based on the file name passed to the HD driver monitoring unit 20c by the operation system 20b and the file system, the file storage unit 28 checks whether the storage destination of the specified file is a predetermined directory or not. The determination is made by the unit 20c (step S54).
[0033]
When the HD driver monitoring unit 20c determines in step S54 that the storage destination of the specified file is not the predetermined directory, the file storage unit 28 passes the specified file and the file name to the HD driver 20d by the HD driver monitoring unit 20c. (Step S55), and then transferred to the hard disk 21 by the HD driver 20d (Step S56).
[0034]
Next, when the specified file and the file name are passed by the HD driver 20d, the hard disk 21 stores the specified file in a free area (step S57), assigns an address to the designated file (step S58), and And the file name of the designated file to the HD driver 20d (step S59).
[0035]
Next, the file storage unit 28 passes the file name and the address passed to the HD driver 20d by the hard disk 21 to the operation system 20b by the HD driver 20d (Step S60).
[0036]
Then, the file storage unit 28 updates the file system by the operation system 20b based on the file name and the address passed to the operation system 20b (step S61), and notifies the completion of the file storage by the operation system 20b by the application. The application 20a is notified (step S62), and the completion of the file storage is confirmed by the application 20a (step S63).
[0037]
The file storage unit 28 stores the specified file in the IC card of the user when the HD driver monitoring unit 20c determines in step S54 that the storage destination of the specified file is the predetermined directory, that is, the specified file is the specific file. The specified file and the file name are encrypted by the HD driver monitoring unit 20c using the secret key (Step S64), and the encrypted file and the encrypted file name (hereinafter, referred to as an encrypted file name) are encrypted by the HD driver monitoring unit. 20c to the server 30 (step S65).
[0038]
Next, when the encrypted file and the encrypted file name are transmitted by the HD driver monitoring unit 20c of the client 20, the server 30 stores the encrypted file in the free space of the hard disk 32 in association with the encrypted file name ( In step S66, the storage of the encrypted file is notified to the HD driver monitoring unit 20c of the client 20 (step S67).
[0039]
When the HD driver monitoring unit 20c confirms that the storage of the encrypted file by the server 30 is completed, the file storage unit 28 of the client 20 assigns a temporary address to the designated file by the HD driver monitoring unit 20c (step). S68).
[0040]
Next, the file storage unit 28 passes the file name of the designated file and the address given by the HD driver monitoring unit 20c to the operation system 20b by the HD driver monitoring unit 20c (Step S69), and performs the above-described steps S61 to S63. The processing of is performed.
[0041]
Next, the operation of the environment restoration system when the user's file is acquired from the hard disk 21 or the server 30 by the file acquisition unit 27 of the client 20 and opened will be described.
[0042]
As shown in FIG. 4, when the user receives an instruction to acquire a designated file from the operation unit 23 (step S71), the file acquiring unit 27 of the client 20 passes the file name of the designated file to the operation system 20b by the application 20a. (Step S72).
[0043]
Next, the file acquisition unit 27 acquires the address of the designated file from the file system by the operation system 20b based on the file name passed to the operation system 20b by the application 20a (Step S73), and acquires the acquired address and the designated file. Is passed to the HD driver monitoring unit 20c by the operation system 20b (step S74).
[0044]
Next, based on the file name and address passed by the operation system 20b to the HD driver monitoring unit 20c and the file system, the file acquisition unit 27 determines whether the storage destination of the specified file is a predetermined directory or not in the HD driver. The determination is made by the monitoring unit 20c (step S75).
[0045]
When the HD driver monitoring unit 20c determines in step S75 that the storage location of the specified file is not a predetermined directory in step S75, the file acquisition unit 27 passes the file name and address to the HD driver 20d by the HD driver monitoring unit 20c ( (Step S76), and then transferred to the hard disk 21 by the HD driver 20d (Step S77).
[0046]
Next, when the file name and address are passed by the HD driver 20d, the hard disk 21 acquires the designated file based on the passed file name and address (step S78), and passes the acquired designated file to the HD driver 20d (step S78). (Step S79), and further passed to the operation system 20b by the HD driver 20d (step S80).
[0047]
Next, the file acquisition unit 27 passes the designated file passed to the operation system 20b by the HD driver 20d to the application 20a by the operation system 20b (step S81), and opens the designated file by the application 20a (step S82).
[0048]
When the HD driver monitoring unit 20c determines in step S75 that the storage destination of the specified file is the predetermined directory, that is, the HD driver monitoring unit 20c determines that the specified file is the specific file, the file acquisition unit 27 stores the specified file in the user's IC card. The file name is encrypted by the HD driver monitoring unit 20c using the secret key (step S83), and the encrypted file name is transmitted to the server 30 by the HD driver monitoring unit 20c (step S84).
[0049]
Next, the server 30 obtains an encrypted file corresponding to the encrypted file name transmitted from the HD driver monitoring unit 20c of the client 20 from the hard disk 32 (Step S85), and transfers the obtained encrypted file to the HD driver of the client 20. The data is transmitted to the monitoring unit 20c (step S86).
[0050]
When the encrypted file transmitted from the server 30 is received by the HD driver monitoring unit 20c, the file storage unit 28 of the client 20 stores the received encrypted file in the HD driver using a secret key stored in the user's IC card. The decrypted encrypted file, that is, the designated file, is passed to the operation system 20b by the HD driver monitoring unit 20c (step S88), and the processes of steps S81 and S82 described above are executed. I do.
[0051]
Finally, the operation of the environment restoration system when the user's usage environment is stored in the server 30 will be described.
[0052]
When the client 20 receives an instruction to save the user's use environment from the operation unit 23 by the user, the client 20 uses a part of the user's use environment stored in the hard disk 21 which is different from the default use environment stored in the hard disk 22. Information is generated as user's usage environment information, and the generated usage environment information is encrypted with a secret key stored in the user's IC card and transmitted to the server 30.
[0053]
Next, the server 30 stores the encrypted use environment information transmitted from the client 20 on the hard disk 32 in association with the user.
[0054]
Further, when saving the usage environment of the user in the server 30, the client 20 encrypts the user's file with a secret key stored in the user's IC card, and stores the encrypted file in the server 30.
[0055]
As described above, in the environment restoration system 10, the file acquisition unit 27 acquires the specific file from the server 30 when receiving an instruction to acquire the file, not at the time of environment restoration. The amount of data acquired by the client 20 from the server 30 when restoring to the server 20 can be reduced as compared with the related art, and the use environment of the user can be restored to the client 20 in a shorter time than before when the use is started.
[0056]
Further, in the environment restoration system 10, since the client 20 acquires the encrypted file from the server 30, compared with the case where the client 20 acquires the unencrypted specific file from the server 30, the information in the specific file is obtained. The possibility of leakage can be reduced.
[0057]
Note that, in addition to the functions of the client being realized by dedicated hardware, a program for realizing the functions is recorded on a computer-readable recording medium, and the program recorded on the recording medium is stored in a computer system. May be read and executed. The computer-readable recording medium refers to a recording medium such as a floppy disk, a magneto-optical disk, a CD-ROM, or a storage device such as a hard disk device built in a computer system. Further, the computer-readable recording medium is one that dynamically holds a program for a short time (transmission medium or transmission wave), such as a case where the program is transmitted via the Internet, and serves as a server in that case. It also includes those that hold programs for a certain period of time, such as volatile memory inside a computer system.
[0058]
【The invention's effect】
As described above, according to the present invention, the use environment of the user can be restored to the client in a shorter time than before in the use start.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an environment restoration system according to an embodiment of the present invention.
FIG. 2 is a flowchart showing the operation of the environment restoration system when the presence of a user file is displayed by an icon.
FIG. 3 is a flowchart showing an operation of the environment restoration system when a user file is stored in the hard disk 21 or the server 30.
FIG. 4 is a flowchart showing the operation of the environment restoration system when a user file is acquired from the hard disk 21 or the server 30 and opened.
[Explanation of symbols]
10 Environment restoration system 11 Internet 20 Client 20a Application 20b Operation system 20c HD driver monitoring unit 20d HD driver 21 Hard disk 22 Hard disk 23 Operation unit 24 IC card processing unit 25 Environment restoration unit 26 Presence display unit 27 File acquisition unit 28 File storage unit 30 Server 31 Authentication unit 32 Hard disks S41 to S44, S51 to S69, S71 to S88

Claims (6)

A step of obtaining a file other than the specific file from the server based on the information on the usage environment stored in the server and restoring the usage environment,
Displaying the presence of the specific file under the restored use environment;
Obtaining the specific file from the server when receiving an instruction to obtain the specific file. The environment restoring method according to claim 1, wherein the encrypted specific file is decrypted when the encrypted specific file is obtained from the server. An environment restoring unit that obtains a file other than the specific file from the server based on the information on the use environment stored in the server and restores the use environment at the client; and a client for the use environment restored by the environment restore unit. A client that includes: presence display means for displaying the existence of the specific file below; and file acquisition means for acquiring the specific file from the server when receiving an instruction to acquire the specific file. 4. The client according to claim 3, wherein the file acquisition unit decrypts the encrypted specific file when obtaining the encrypted specific file from the server. An environment restoration program for causing a computer to execute the environment restoration method according to claim 1. A computer-readable recording medium on which the environment restoration program according to claim 5 is described.

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