JP2013045241A - Information processing device and information processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device capable of retaining high security of certainty by encryption in a whole period from receiving a file from a distributer and storing it, till transferring it to a receiving object person, and transferring it by changing a password of the file into a password that a user in a transfer destination desires.SOLUTION: The information processing device: receives, from a distributer, an encryption file to be transferred, information of a receiving object person of the encryption file, and a password used for decrypting the encryption file; stores them; encrypts again the file obtained by decrypting the encryption file once by the password received from the distributor, by a password specified by the receiving object person; and then transmits it to the receiving object person. The encryption of the file can be thus released by the password that the receiving object person in the transfer destination desires.

Description

  The present invention relates to an information processing apparatus and an information processing program for transferring a file with a password.

  Conventionally, when transferring a file received from a distributor to another destination, a method of encrypting and transferring the file from the viewpoint of security management has become widespread. As a method of setting a password used for decryption at that time, there are a method of setting a password for each transmission destination, and a method of using a device-specific password for each transfer destination device. However, in this case, since only one password can be used for one transmission destination (device), when a plurality of users use one transmission destination, the password must be shared among the users. There was a problem. Therefore, a method for properly using a plurality of types of passwords for one transmission destination has been proposed.

  For example, the method disclosed in Patent Document 1 proposes a method of setting a different password for each transfer condition (sender telephone number, F code, etc.) when encrypting a file received from a distributor.

JP 2005-354198 A

  However, in the method disclosed in Patent Document 1, since the transferor or distributor designates a password, the final user who receives the encrypted file must manage the password designated by the transferor or distributor. Rather, it was difficult to manage compared to managing passwords that were decided by myself.

  For this reason, the file recipient may decrypt the received file immediately with the password specified by the distributor and re-encrypt it with the password decided by the distributor. Over time, the file recipient may lose or forget the password given by the distributor. In this case, the password could be changed, and in the worst case, the file could not be opened.

  In addition, in the method disclosed in Patent Document 1, the file received from the distributor by the information processing apparatus may be stored as an unencrypted file. In this case, the stored file corresponds to unauthorized access or the like. There is a problem in security management. In addition, when the file received from the distributor is an already encrypted file, there is a problem that a new password cannot be assigned or changed.

  An object of the present invention is to solve the above-described problem, and when an already encrypted file is stored and transferred, the information processing apparatus can encrypt and transfer the file with a password desired by a transfer destination user And an information processing program.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] An acquisition unit that acquires an encrypted file, a password for decrypting the encrypted file, and recipient information of the file;
A storage unit for storing the encrypted file acquired by the acquisition unit, the password, and the recipient information;
After decrypting the encrypted file with the password, the encrypted file is encrypted with the password designated by the recipient indicated by the recipient information, and the file obtained by encrypting with the designated password is the recipient. A processing unit that transmits to the recipient based on a receipt request from
An information processing apparatus characterized by comprising:

  In the inventions according to [1] and [10] below, an encrypted file (encrypted file), a password for decrypting the encrypted file (initial password), and an object to receive the encrypted file The user information is acquired and saved, the encrypted file is decrypted with the initial password, and then encrypted again with the password (password to be changed) specified by the user (recipient) indicated by the recipient information. , And send it to the recipient of the encrypted file. As a result, the password of the encrypted file can be changed and transferred to the password desired by the recipient. In addition, it is possible to maintain security with high certainty by encryption during the entire period from acquiring and storing the encrypted file to transferring it to the recipient.

[2] When the processing unit receives a reception request for the encrypted file from the recipient indicated by the recipient information acquired by the acquisition unit, the processing unit decrypts the encrypted file with the password. After that, the information processing apparatus according to [1], wherein the information is encrypted with a password designated by a recipient who made the receipt request.

  In the inventions according to [2] and [11] below, when an encrypted file reception request is received from the user (recipient) indicated by the recipient information, the encrypted file is decrypted with the initial password. After that, it encrypts it again with the password specified by the recipient who requested the receipt (password to change).

[3] The information processing apparatus according to [2], wherein the processing unit receives a designation of a password from a reception target person who has made the reception request in response to the reception request.

  In the inventions according to the above [3] and [12] below, the password to be changed is designated upon receiving a request for receiving the encrypted file from the recipient. The designation of the password to be changed may be accepted at the same time as the encrypted file receipt request. For example, a change request password may be attached or described in an e-mail received as an encrypted file receipt request, or a change request may be made when a user logs in to an information processing device and requests an encrypted file download. You may receive input specifying a password. Alternatively, the user may be requested to specify a desired password after receiving an encrypted file reception request.

[4] The processing unit requests the recipient who made the receipt request to specify a password, and receives a password from the recipient as a response to the request [2] or [3 ]. The information processing apparatus according to claim.

  In the inventions according to the above [4] and [13] below, the change desired password is designated from the recipient as a response to the request for the change desired password. As a method for requesting a change desired password, there are an e-mail and a method for displaying a request for a change desired password on a display unit when a user logs in to the information processing apparatus and requests download of an encrypted file.

[5] The information processing apparatus according to [1] or [2], wherein the designated password is registered in advance.

In the invention according to the above [5] and the following [14], a change desired password designated by the recipient may be registered in the information processing apparatus in advance.

[6] It is characterized by authenticating whether or not the person who made the reception request is a reception target person indicated by the reception target person information, and when the authentication is successful, the reception request is accepted as a valid reception request. The information processing apparatus according to any one of [1] to [5].

  In the inventions according to [6] and [15] below, it is authenticated whether or not the person who has requested the receipt of the encrypted file is the recipient who is indicated by the recipient information, and only when the authentication is successful Change the password of the activation file to the desired password specified by the recipient. As a result, it is possible to maintain highly reliable security without responding to designation of a password desired to be changed by a person who does not correspond to the recipient.

[7] The processing unit stores a file obtained by encrypting with the designated password in a storage unit, and when receiving a download request for the file from a person who has made the reception request, The information processing apparatus according to any one of [1] to [6], wherein the file is transmitted to a request source.

  In the inventions according to [7] and [16] below, a file (changed file) whose password has been changed is stored in the desired password to be changed designated by the recipient, and the recipient receives the login to the information processing apparatus. When the download request for the changed file is made, the changed file is transmitted to the request source of the download request.

[8] In any one of [1] to [7], the recipient is indicated by the recipient information that the recipient is the recipient of the encrypted file. Information processing device.

  In the invention according to [8] and [17] below, when an encrypted file to be transferred is acquired, a file to be transferred is acquired for the recipient of the file indicated by the recipient information. To be notified. The recipient can request this file by logging in to an e-mail or an information processing device and making a download request.

[9] The acquisition unit acquires the encrypted file, a password for decrypting the encrypted file, and recipient information of the file from the distributor,
The processing unit notifies the distributor that the encrypted file has been decrypted and re-encrypted with the specified password to the recipient indicated by the recipient information. The information processing apparatus according to any one of [1] to [8].

  In the invention according to [9] and [18] below, an encrypted file to be transferred, a password (initial password) for decrypting the encrypted file, and an object to receive the encrypted file are received from the distributor. The user information is acquired and stored, and the encrypted file is decrypted with the initial password, and then encrypted again with the password (password to be changed) designated by the recipient. Then, the file is transmitted (transferred) to the recipient who made the receipt request. After that, after changing the password of the encrypted file to the change desired password designated by the recipient, the distributor is notified that the file has been transmitted (transferred) to the recipient. As a result, when the file has been transferred successfully, the distributor can confirm that the file has been transferred successfully.

[10] An information processing apparatus
Obtain an encrypted file, a password for decrypting the encrypted file, and recipient information of the file,
Storing the encrypted file, the password, and the recipient information;
After decrypting the encrypted file with the password, the encrypted file is encrypted with the password designated by the recipient indicated by the recipient information, and the file obtained by encrypting with the designated password is the recipient. An information processing program that operates to transmit to the person to be received based on a reception request from.

[11] The information processing apparatus is
When a reception request for the encrypted file is received from the reception target person indicated by the reception target person information, the encrypted file is decrypted with the password, and then the reception target person who made the reception request is designated. The information processing program according to [10], wherein the information processing program is operated so as to be encrypted with a password.

[12] The information processing apparatus is
The information processing program according to [11], wherein, in response to the receipt request, the information processing program is operated so as to receive a password designation from a recipient who has requested the receipt.

[13] The information processing apparatus is
[11] or [12], wherein a request is made to specify a password to the recipient who has made the receipt request, and the password is designated by the recipient as a response to the request. Information processing program.

[14] The information processing program according to [10] or [11], wherein the designated password is registered in advance.

[15] The information processing apparatus is
And authenticating whether or not the person who made the reception request is a reception target person indicated by the reception target person information, and when the authentication is successful, operates so as to accept the reception request as a valid reception request. [10] The information processing program according to any one of [14].

[16] The information processing apparatus
Stores a file obtained by encrypting with the specified password, and operates to send the file to a request source of the download request when receiving a download request of the file from a person who has requested the reception The information processing program according to any one of [10] to [15], characterized in that:

[17] The information processing apparatus is
In any one of [10] to [16], the operation is performed so as to notify the reception target person indicated by the reception target person information that the encrypted file is the reception target person. The information processing program described.

[18] The information processing apparatus is
The encrypted file, a password for decrypting the encrypted file, and recipient information of the file are obtained from a distributor, and the encrypted file is decrypted to specify the file Any one of [10] to [17], wherein the file is re-encrypted with the password of the recipient and sent to the recipient indicated by the recipient information. The information processing program as described in any one.

  According to the information processing apparatus of the present invention, it is possible to maintain highly reliable security by encryption and to transfer a file from the distributor to the entire period until the file is received and stored and transferred to the recipient. The file password can be changed and transferred to the password desired by the previous user.

It is explanatory drawing which shows the whole system to which the image processing apparatus which concerns on embodiment of this invention was connected. 1 is a block diagram illustrating a schematic configuration of an image processing apparatus according to an embodiment of the present invention. It is explanatory drawing which shows operation | movement of a whole system. It is a flowchart which shows the flow of a process until it transfers the file to be transferred in the case of changing the password of an encryption file after receiving the input of a change desired password, and transmitting the file to transfer by electronic mail. It is a flowchart which shows the flow of a process until it transfers the file to be transferred in the case of changing the password of an encryption file with the password for change stored beforehand, and transmitting the file to transfer by electronic mail. It is a flowchart which shows the flow of the process which changes the password of an encryption file after receiving the input of a change desired password, and receives download of the file to be transferred from a recipient. It is a flowchart which shows the flow of the process which changes the password of an encryption file with the password for change stored beforehand, and receives download of the file which is due to be transferred from a recipient. It is explanatory drawing which shows the whole system 6 in case a server transfers a file.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of an overall system 6 to which an image processing apparatus 10 as an information processing apparatus according to an embodiment of the present invention is connected. The image processing apparatus 10 is connected to a plurality of terminal apparatuses 5 via a network 2 such as a LAN (Local Area Network).

  The image processing apparatus 10 is a copy job that optically reads a document and prints a duplicate image on a recording sheet, a scan job that stores image data of the read document as a file, or transmits it to an external terminal via a network, It is configured as a multi-function peripheral (MFP) having a function of executing a job such as a print job for forming and printing out an image related to print data received from the terminal device 5 through the network 2 on a recording paper, and a FAX job for facsimile transmission / reception. ing.

  The terminal device 5 is an information processing device having a function of submitting a job such as a scan job or a print job to the image processing device 10 and requesting the execution thereof, or transmitting / receiving an e-mail. The terminal device 5 includes a personal computer installed with an OS program, a driver program for the image processing device 10, transmission / reception of e-mails, application programs for creating and editing documents and images, and the like.

  In the overall system 6, the image processing apparatus 10 receives a file transmitted by the distributor from one of a plurality of terminal apparatuses 5, and transfers the file to the terminal apparatus 5 used by the recipient designated by the distributor. A function to change the password of the encrypted file so that the file can be decrypted with the password desired by the recipient of the transfer destination when the file received from the distributor is an encrypted file (encrypted file) (Change function to desired password).

  In this example, the file to be transferred (encrypted file, non-encrypted file) from the distributor, the recipient list in which the recipients of this file are registered, and the file to be transferred are encrypted files Receives and stores the password (initial password) used to decrypt this file. When providing an encrypted file to a recipient who is registered in this recipient list, the encrypted file is once decrypted with the initial password received from the distributor, and this is the password specified by the recipient. It comes to re-encrypt.

  FIG. 2 shows a schematic configuration of the image processing apparatus 10. The image processing apparatus 10 includes a CPU (Central Processing Unit) 11 that controls the operation of the image processing apparatus 10, a ROM (Read Only Memory) 12 connected to the CPU 11, a RAM (Random Access Memory) 13, and a nonvolatile memory. 14, a hard disk device 15, a display unit 16, an operation unit 17, a network I / F unit 19, a scanner unit 20, an image processing unit 21, a printer unit 22, a user authentication unit 23, and a password change. Part 24.

  The CPU 11 is based on an OS program, on which middleware and application programs are executed. Various programs are stored in the ROM 12, and each function of the image processing apparatus 10 such as job execution is realized by the CPU 11 executing processes according to these programs. The RAM 13 is used as a work memory for temporarily storing various data when the CPU 11 executes a program, an image memory for storing image data, and the like.

  The nonvolatile memory 14 is a rewritable memory (flash memory) that can retain memory even when the power is turned off. The nonvolatile memory 14 stores device-specific information and various setting information. The hard disk device 15 is a large-capacity nonvolatile storage device, and stores an OS program, various application programs, print data, image data, job history, and the like.

  The operation panel of the image processing apparatus 10 includes a display unit 16 and an operation unit 17. The display unit 16 is configured by a screen such as a liquid crystal display (LCD), and has a function of displaying various operation screens, setting screens, and the like. The operation unit 17 has a function of accepting various operations such as job input and setting from the user. The operation unit 17 includes a touch panel that is provided on the screen of the display unit 16 and detects a pressed coordinate position, and includes a numeric keypad, a character input key, a start key, and the like.

  The network I / F unit 19 communicates with other external devices connected through a network such as a LAN (Local Area Network).

  The scanner unit 20 performs a function of optically reading a document and acquiring image data. The scanner unit 20 sequentially moves, for example, a light source that irradiates light on a document, a line image sensor that receives the reflected light for one line in the width direction, and a reading position in line units in the length direction of the document. An optical path composed of a lens, a mirror, and the like that forms an image by guiding the reflected light from the document to the line image sensor, and a change unit that changes the analog image signal output from the line image sensor into digital image data. It is prepared for.

  The image processing unit 21 performs rasterization processing for changing print data to image data, image data compression and expansion processing, in addition to processing such as image enlargement / reduction and rotation.

  The printer unit 22 has a function of forming an image corresponding to the image data on a recording sheet. Here, it has a recording paper transport device, a photosensitive drum, a charging device, a laser unit, a developing device, a transfer separation device, a cleaning device, and a fixing device, and forms an image by an electrophotographic process. It is configured as a so-called laser printer. The image formation may be an ink jet method or other methods.

  The user authentication unit 23 has a function of performing user authentication. Specifically, it is determined whether or not the user who wishes to change the password is a recipient who is designated by the distributor.

  The password changing unit 24 functions to change the password of the encrypted file received from the distributor to a password desired by the file transfer destination user (recipient).

  Next, the operation of the overall system 6 will be described in more detail.

  FIG. 3 is an explanatory diagram showing an example of the operation of the overall system 6. In FIG. 3, the terminal device 5A used by the file distributor A, the image processing device 10, and the terminal device 5B used by the user B are connected via a network.

  The image processing apparatus 10 receives the encrypted file (encrypted file 30) to be transferred from the terminal device 5A used by the file distributor A, the recipient list 31, the contact address 32, and the initial password 33. Receive. The recipient list 31 is a list of users (recipients) who use the terminal device 5 that is the transfer destination of the encrypted file 30 designated by the distributor A, and may be one or more. The contact address 32 is information (e-mail address or the like) for contacting the recipient. In addition, if the contact information of the recipient is included in the recipient list 31, there is no need to receive the contact 32 information separately. Also. For example, if all users are registered as an address book, contact information for the recipients specified in the recipient list can be obtained from the address book, so contact each time the recipient list is received from the distributor. You do not have to receive information. The initial password 33 is a password set by the distributor A to decrypt the encrypted file 30.

  Thereafter, the image processing apparatus 10 refers to the e-mail address that is the transmission destination of the recipient (user B in FIG. 3) indicated by the information in the recipient list 31 from the contact 32, and the encrypted file to be transferred is Send an email notifying you of this. The person who receives the e-mail sees the e-mail reply mail as a file receipt request. When the image processing apparatus 10 receives a request to receive a file to be transferred from the recipient, the image processing apparatus 10 transmits an e-mail requesting a change desired password. The change desired password is a password designated by the recipient, and is used as a changed password when the image processing apparatus 10 changes the password set in the encrypted file 30. When the image processing apparatus 10 accepts the input of the change desired password from the recipient, the password change unit 24 changes the password of the encrypted file 30 to the change desired password input earlier, and the terminal device used by the recipient 5 (here, the terminal device 5B).

  When the image processing apparatus 10 transmits a file whose password has been changed to the desired password to be changed (file after change) to the recipient, the image processing apparatus 10 notifies the transmission destination of the file transmission completion. Then, the password of the encrypted file 30 is changed to the distributor A, and notification is sent to the recipient.

  As a method of transmitting the changed file to the terminal device 5 used by the recipient, there are a method of sending the attached file in an e-mail and a method of sending when a download request is received from the recipient. is there. When the image processing apparatus 10 is requested by the user to download the changed file, the image processing apparatus 10 performs user authentication to determine whether or not the user who has made the download request is a recipient. User authentication may be performed when the user logs into the image processing apparatus 10. As a result of user authentication, if the user is a recipient, the password of the encrypted file 30 is changed by the password changing unit 24 to a change desired password designated by the recipient, and the previous download request is valid. The changed file is transmitted to the terminal device 5 used by the recipient.

  When the image processing apparatus 10 changes the password of the encrypted file 30, the password changing unit 24 first uses the initial password 33 that is the password set in the encrypted file 30 by the distributor A to use the encrypted file. 30 is decrypted. Then, the file obtained by the decryption is encrypted again so that it can be decrypted with the change desired password. In FIG. 3, the image processing apparatus 10 changes the password of the encrypted file 30 from the initial password (AAAAA) to a change desired password (BBBBB) designated by B who is the recipient.

  The input of the change request password from the recipient is performed by sending an e-mail or accessing the image processing apparatus 10. In the case where the person to be notified notifies the image processing apparatus 10 of the change desired password by sending an e-mail, a reply e-mail of an e-mail (e-mail requesting the change desired password) sent from the image processing apparatus 10 to the person to be received There is a method of sending an e-mail by writing a password in a reply address described in an e-mail sent from the image processing apparatus 10 to a recipient. When the change desired password is transmitted by e-mail, the change desired password is described in the body of the e-mail, or a file in which the change desired password is registered is attached to the e-mail and transmitted. There is also a method in which a link is set up in the e-mail transmitted from the image processing apparatus 10 to the recipient and the user inputs a password on a Web (World Wide Web) screen corresponding to the link.

  The recipient can input the password to be changed at the same time as the request for receiving the changed file (however, only the encrypted file 30 still exists at this time). For example, it may be described in an e-mail reply mail notifying that there is an encrypted file to be transferred. When logging into the image processing apparatus 10 or when requesting the download of the changed file, the password for change may be input. At that time, the image processing apparatus 10 displays a request for a change desired password on the display unit 16.

  The change request password designated by the recipient may be registered in advance in the image processing apparatus 10. In that case, the request for the password to be changed is made in advance. Also, the recipient list 31, the contact address 32, and the initial password 33 may be registered in the image processing apparatus 10 in advance.

  As a transmission method when the image processing apparatus 10 provides the changed file to the recipient, a method by transmission of an e-mail (transmission method A) and a method of transmission by a download request from the recipient (transmission method B) ) In addition, the image processing apparatus 10 obtains the change desired password by a method of receiving an input of the change desired password from the recipient (acquisition method C) and a method of storing the change desired password in the image processing apparatus 10 in advance. (Acquisition method D). The four combinations of the file transmission method and the change password acquisition method will be described.

<Combination of Transmission Method A and Acquisition Method C>
FIG. 4 shows a flow of processing when the image processing apparatus 10 receives an input of a change desired password from a recipient in a process of transferring a file received from a distributor by e-mail.

  First, the image processing apparatus 10 receives a file to be transferred (encrypted file or non-encrypted file), an initial password (if the file to be transferred is an encrypted file), a recipient list, a contact ( E-mail address) is received (step S101). If the received file to be transferred is not an encrypted file (step S102; No), the file is transmitted by e-mail to the contact information of the recipient who is registered in the recipient list (step S108). Thereafter, the distribution completion is notified to the distributor (step S109), and the process is terminated. If multiple recipients are registered in the recipient list, the file is transmitted for all registered recipients.

  If the received file to be transferred is an encrypted file (step S102; Yes), the recipient is first notified that there is an encrypted file to be transferred (step S103). Then, an input of a change desired password from the recipient is accepted (step S104). If there is no input of a change desired password (step S104; No), the process returns to step S104. When an input of a change desired password is received from the recipient (step S104; Yes), the encrypted file password is changed to the change desired password input from the recipient (step S105). The changed file is transmitted by e-mail to the corresponding recipient contact information (step S106). Thereafter, the distributor is notified that the transfer of the file whose password has been changed is completed (step S107), and the process is terminated.

<Combination of Transmission Method A and Acquisition Method D>
FIG. 5 shows the flow of processing when the image processing apparatus 10 transfers the file received from the distributor by e-mail, and the change desired password designated by the recipient is stored in the image processing apparatus 10 in advance. .

  First, the image processing apparatus 10 receives a file to be transferred (encrypted file or non-encrypted file), an initial password (if the file to be transferred is an encrypted file), a recipient list, a contact ( E-mail address) is received (step S201). If the received file to be transferred is not an encrypted file (step S202; No), the file is sent by e-mail to the contact information of the recipient in the recipient list (step S208). Thereafter, the distribution completion is notified to the distributor (step S209), and the process is terminated.

  If the received transfer-scheduled file is an encrypted file (step S202; Yes), the recipient is first notified that there is a transfer-scheduled file (step S203). Next, the password change request corresponding to each of the recipients stored in advance is referred to (step S204), and the password of the encrypted file is changed to the change desired password corresponding to the recipient recipient of the transmission destination (step S204). S205). Then, the changed file is transmitted by e-mail to the contact information of the corresponding recipient (step S206). Thereafter, the distributor is notified that the transfer of the file whose password has been changed is completed (step S207), and the process is terminated.

<Combination of Transmission Method B and Acquisition Method C>
FIG. 6 shows a flow of processing when the image processing apparatus 10 receives an input of a change desired password from the recipient when the changed file is transmitted to the recipient by a login and download request from the recipient. .

  First, the image processing apparatus 10 receives a file to be transferred (encrypted file or non-encrypted file), an initial password (if the file to be transferred is an encrypted file), a recipient list, a contact ( E-mail address) is received (step S301). If the received file to be transferred is not an encrypted file (step S302; No), a login from the user (recipient) is accepted (step S314). When accepting the login, the user authentication unit 23 performs user authentication for determining whether or not the user who logs in is a person to be received. If there is no login from the recipient (step S314; No), the process returns to step S314. When the login from the recipient is accepted (step S314; Yes), the download request for the file to be transferred is accepted from the recipient (step S315). If there is no request for download of the file to be transferred from the recipient (step S315; No), the process returns to step S315. If a download request for a file to be transferred is received from the recipient (step S315; Yes), the file to be transferred is transmitted to the recipient, and then the transfer is notified to the distributor (step S316). Exit.

  If the received file to be transferred is an encrypted file (step S302; Yes), the recipient is first notified that there is an encrypted file to be transferred (step S303). Then, an input of a change desired password from the recipient is accepted (step S304). If there is no input of a desired password for change (step S304; No), the process proceeds to step S306. When the change desired password is received from the recipient (step S304; Yes), the password of the encrypted file is changed to the change desired password input from the recipient in step S304 (step S305), and the process proceeds to step S306. move on. What is necessary is just to set suitably the period which receives the input of the change desired password from a recipient in step S304.

  When a notification requesting login to the recipient is received (step S306), the login of the recipient is accepted (step S307). When accepting the login, the user authentication unit 23 performs user authentication for determining whether or not the user who logs in is a person to be received. If there is no login from the person to be received (step S307; No), the process returns to step S304 and the process is continued.

  When the login from the recipient is accepted (step S307; Yes), if the password of the encrypted file has been changed to the change desired password corresponding to the recipient who logged in at step S307 (step S308; Yes) ), A download request for the changed file is received from the recipient (step S309). If there is no change file download request from the recipient (step S309; No), the process returns to step S309. When a request for downloading the changed file is received from the recipient (step S309; Yes), the changed file is transmitted to the recipient, and then the transfer completion notification of the file whose password has been changed is sent to the distributor. (Step S310) The process ends.

  In step S308, if the password of the encrypted file has not yet been changed to the change desired password corresponding to the logged-in recipient (step S308; No), a display prompting the logged-in recipient to input the change desired password is displayed. This is performed (step S311). Thereafter, an input of a change desired password from the logged-in recipient is accepted (step S312). If there is no input of the change desired password (step S312; No), the process returns to step S312. When receiving the input of the change desired password from the recipient (step S312; Yes), the password of the encrypted file is changed to the change desired password input from the recipient in step S312 (step S313), and the process proceeds to step S308. Return processing continues.

<Combination of Transmission Method B and Acquisition Method D>
In FIG. 7, when the image processing apparatus 10 transmits the changed file to the reception target person by login and a download request from the reception target person, the operation when the change desired password is stored in the image processing apparatus 10 in advance is shown. Show the flow.

  First, the image processing apparatus 10 receives a file to be transferred (encrypted file, non-encrypted file), initial password (if the file to be transferred is an encrypted file), recipient list, contact information (from the distributor) E-mail address) is received (step S401). If the received file to be transferred is not an encrypted file (step S402; No), a login from the user (recipient) is accepted (step S412). When accepting the login, the user authentication unit 23 performs user authentication for determining whether or not the user who logs in is a person to be received. If there is no login from the recipient (step S412; No), the process returns to step S412.

  When the login from the recipient is accepted (step S412; Yes), the download request for the file to be transferred is accepted from the recipient (step S413). If there is no download request for the file to be transferred from the recipient (step S413; No), the process returns to step S413. When a download request for a file scheduled to be transferred is received from the recipient (step S413; Yes), the file scheduled to be transferred is transmitted to the recipient. Then, the transfer completion is notified to the distributor (step S414), and the process is terminated.

  If the received file to be transferred is an encrypted file (step S402; Yes), the recipient is first notified that there is an encrypted file to be transferred (step S403). Next, reference is made to the change desired password corresponding to each of the recipients stored in advance (step S404), and the password of the encrypted file is changed to the change desired password corresponding to the recipient of the transmission destination (step S404). S405). When a notification requesting login to the recipient is received (step S406), the login of the recipient is accepted (step S407). When accepting the login, the user authentication unit 23 performs user authentication for determining whether or not the user who logs in is a person to be received. If there is no login from the person to be received (step S407; No), the process returns to step S407 and continues.

  If the login from the person to be received is accepted (step S407; Yes), it is confirmed whether or not the change desired password referred to in step S404 has been changed (step S408). If there is no change (step S408; No), the process proceeds to step S410. When the change is confirmed (step S408; Yes), the password changed in step S405 is changed again to the change desired password confirmed in step S408 (step S409).

  Then, a download request for the changed file is received from the recipient (step S410). If there is no change file download request from the recipient (step S410; No), the process returns to step S408. When the request for downloading the changed file is received from the recipient (step S410; Yes), the changed file is transmitted to the recipient, and the distributor is notified that the transfer of the file whose password has been changed is completed (step S410). S411) The process ends.

  In the present invention, the password (initial password) set by the distributor for the encrypted file is a file-specific password for opening an individual file, and a distributor-specific password (for example, access to a server or the like). Password). On the other hand, the password specified by the recipient (the password you want to change) may be a password unique to each recipient, you may use a login ID (Identification) password such as a mail server, You may use the password of the user account for logging in. The type of password specified by the recipient is not limited (alphanumeric PIN, fingerprint authentication, vein authentication, etc.).

  The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within the scope of the present invention. Are also included in the present invention.

  In the embodiment of the present invention, the image processing apparatus plays the role of the information processing apparatus, but it may be a server 40 connected to the network 2 as shown in FIG.

  In the embodiment of the present invention, the information processing apparatus 10 changes the password of the encrypted file to the change desired password in response to a request for receiving the encrypted file from the recipient. However, if the desired change password specified by the recipient is registered in the information processing device 10 in advance, the encrypted file password is changed to the desired change password before receiving the receipt of the encrypted file from the recipient. May be. For example, when the encrypted file is acquired from the distributor, the password of the encrypted file may be changed and saved to the change desired password designated by the recipient who is registered in advance in the information processing apparatus 10. Good. Since the file changed to the change desired password (file after change) is an encrypted file, the certainty of security is maintained.

2 ... Network 5 ... Terminal device 5A ... Terminal device used by distributor A 5B ... Terminal device used by user B 6 ... Overall system 10 ... Image processing device 11 ... CPU
12 ... ROM
13 ... RAM
DESCRIPTION OF SYMBOLS 14 ... Nonvolatile memory 15 ... Hard disk device 16 ... Display part 17 ... Operation part 19 ... Network I / F part 20 ... Scanner part 21 ... Image processing part 22 ... Printer part 23 ... User authentication part 24 ... Password change part 30 ... Encryption File 31 ... List of recipients 32 ... Contact 33 ... Initial password 40 ... Server

Claims (18)

An acquisition unit for acquiring an encrypted file, a password for decrypting the encrypted file, and recipient information of the file;
A storage unit for storing the encrypted file acquired by the acquisition unit, the password, and the recipient information;
After decrypting the encrypted file with the password, the encrypted file is encrypted with the password designated by the recipient indicated by the recipient information, and the file obtained by encrypting with the designated password is the recipient. A processing unit that transmits to the recipient based on a receipt request from
An information processing apparatus characterized by comprising: When the processing unit receives a reception request for the encrypted file from the reception target person indicated by the reception target person information acquired by the acquisition unit, after decrypting the encrypted file with the password, The information processing apparatus according to claim 1, wherein encryption is performed using a password designated by a recipient who has made the receipt request. The information processing apparatus according to claim 2, wherein the processing unit receives a designation of a password from a reception target person who has made the reception request in response to the reception request. 4. The information according to claim 2, wherein the processing unit requests a designation of a password from a recipient who has made the receipt request, and receives a designation of a password from the recipient as a response to the request. Processing equipment. The information processing apparatus according to claim 1, wherein the designated password is registered in advance. The authentication unit determines whether the person who made the reception request is a reception target person indicated by the reception target person information, and receives the reception request as a valid reception request when the authentication is successful. 5. The information processing apparatus according to any one of 5. The processing unit stores a file obtained by encrypting with the specified password in a storage unit, and when receiving a download request for the file from a person who made the reception request, to the request source of the download request The information processing apparatus according to any one of claims 1 to 6, wherein the file is transmitted. The information processing apparatus according to any one of claims 1 to 7, wherein a notification is made to a reception target indicated by the reception target information that the encrypted file is a reception target. The acquisition unit acquires the encrypted file, a password for decrypting the encrypted file, and recipient information of the file from the distributor,
The processing unit notifies the distributor that the encrypted file has been decrypted and re-encrypted with the specified password to the recipient indicated by the recipient information. The information processing apparatus according to any one of claims 1 to 8. Information processing device
Obtain an encrypted file, a password for decrypting the encrypted file, and recipient information of the file,
Storing the encrypted file, the password, and the recipient information;
After decrypting the encrypted file with the password, the encrypted file is encrypted with the password designated by the recipient indicated by the recipient information, and the file obtained by encrypting with the designated password is the recipient. An information processing program that operates to transmit to the person to be received based on a reception request from. The information processing apparatus;
When a reception request for the encrypted file is received from the reception target person indicated by the reception target person information, the encrypted file is decrypted with the password, and then the reception target person who made the reception request is designated. The information processing program according to claim 10, wherein the information processing program is operated so as to be encrypted with a password. The information processing apparatus;
The information processing program according to claim 11, wherein the information processing program is operated so as to receive a password designation from a reception target person who has made the reception request in response to the reception request. The information processing apparatus;
13. The information processing according to claim 11 or 12, wherein a request for specifying a password is made to the recipient who made the receipt request, and a password is designated by the recipient as a response to the request. program. The information processing program according to claim 10 or 11, wherein the designated password is registered in advance. The information processing apparatus;
And authenticating whether or not the person who made the reception request is a reception target person indicated by the reception target person information, and when the authentication is successful, operates so as to accept the reception request as a valid reception request. The information processing program according to any one of claims 10 to 14. The information processing apparatus;
Stores a file obtained by encrypting with the specified password, and operates to send the file to a request source of the download request when receiving a download request of the file from a person who has requested the reception The information processing program according to any one of claims 10 to 15, wherein: The information processing apparatus;
The operation according to any one of Claims 10 to 16, wherein the operation is performed so as to notify a recipient who is indicated by the recipient information that the recipient is the recipient of the encrypted file. Information processing program. The information processing apparatus;
The encrypted file, a password for decrypting the encrypted file, and recipient information of the file are obtained from a distributor, and the encrypted file is decrypted to specify the file The operation is performed so as to notify the distributor that the file re-encrypted with the password is transmitted to the recipient indicated by the recipient information. Information processing program described in 1.

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