JP2008065550A - Information processing apparatus, information processing method and information processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing apparatus that can protect document data appropriately in accordance with security levels. <P>SOLUTION: The information processing apparatus comprises an area information retention means 110 for retaining in association with documents area information specifying confidential areas in the documents to be kept from users, a provision request acquisition means 100 for acquiring an external request to provide a document, a confidential area identification means 112 for identifying confidential areas by the area information retained in the area information retention means 110 when the provision request is acquired, a confidential processing means 112 for processing the identified confidential areas into a hidden state, and an output means 114 for outputting the document processed by the confidential processing means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, an information processing method, and an information processing program that provide a document.

  Conventionally, when distributing images, it has been necessary to prevent leakage of confidential information such as personal information to the outside. In order to prevent leakage of secret information, it is known to protect a portion of image data corresponding to the secret information by performing a masking process (see, for example, “Patent Document 1”). In addition, for example, there is known a method in which the types of masking data are made different (see, for example, “Patent Document 2”).

JP 2004-246481 A JP 2004-227181 A

  However, various contents are described in the document data, and the security level of each content may be different. In addition, there are many distribution destinations of document data, and there are cases where it is desired to vary the information to be kept secret for each distribution destination.

  The present invention has been made in view of the above, and an object of the present invention is to provide an information processing apparatus, an information processing method, and an information processing program capable of appropriately protecting document data according to a security level. And

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is an information processing apparatus, and specifies a document and a region in the document that is to be concealed from a user. Area information holding means for holding the area information in association with each other, a provision request obtaining means for obtaining the provision request for the document from the outside, and the area information when the provision request obtaining means obtains the provision request. Based on the area information held by the holding means, a secret area specifying means for specifying the secret area, and a secret processing means for processing the secret area specified by the secret area specifying means in a non-viewable state; Output means for outputting the document after processing by the concealment processing means.

  The invention according to claim 2 is the information processing apparatus according to claim 1, wherein the display unit displays the document, and the region designation reception unit receives the region information among the documents displayed by the display unit. The area information holding unit holds the document and the area information received by the area designation receiving unit in association with each other.

  The invention according to claim 3 is the information processing apparatus according to claim 1, further comprising a secret rank acquisition unit that acquires a secret rank of a transmission source of the provision request from the outside, and the region information holding unit Holds a plurality of area information, and further holds a secret rank of the secret area specified by the area information in association with each area information, and the secret area specifying means is configured to store the secret information in the area information holding means. The secret area is specified based on the area information associated with the secret rank acquired by the rank acquisition means.

  The invention according to claim 4 is the information processing apparatus according to claim 1, wherein transmission source identification information acquiring means for acquiring transmission source identification information for identifying the transmission source from the transmission source of the provision request is provided. In the secret rank holding means for holding the sender identification information and the secret rank in association with each other, in the secret rank holding means, the sender identification information is associated with the sender identification information acquired by the sender identification information acquisition means. A secret rank extracting means for extracting the secret rank, wherein the area information holding means holds a plurality of area information and associates each area information with the secret area specified by the area information. A secret rank is further held, and the secret area specifying means is associated with the secret rank extracted by the secret rank extracting means in the area information holding means. Based on the distribution, and identifies the protected area.

  The invention according to claim 5 is the information processing apparatus according to claim 4, further comprising registration means for associating the transmission source identification information and the secret rank with each other and registering the secret rank holding means. It is characterized by that.

  The invention according to claim 6 is the information processing apparatus according to claim 1, wherein output destination information acquisition means for acquiring output destination information designated by an output destination of the document, the output destination information, Secret rank extraction means for extracting the secret rank associated with the output destination information acquired by the output destination information acquisition means in the secret rank holding means, and holding the secret rank in association with each other. The area information holding means holds a plurality of area information, and further holds a secret rank of the secret area specified by the area information in association with each area information, and the secret area The specifying means specifies the secret area based on the area information associated with the secret rank extracted by the secret rank extracting means in the area information holding means, Serial output means, and outputs the document after the processing to the output destination indicated in the destination information.

  The invention according to claim 7 is the information processing apparatus according to claim 6, further comprising registration means for associating the output destination information with the secret rank and registering them in the secret rank holding means. It is characterized by that.

  The invention according to claim 8 is the information processing apparatus according to any one of claims 3 to 7, wherein the display unit displays the document, and the region of the document displayed by the display unit is displayed. A region designation receiving unit that receives information and a secret rank corresponding to each region information, and the region information holding unit includes the document, the region information received by the region designation receiving unit, and the secret rank. Are stored in association with each other.

  The invention according to claim 9 is the information processing apparatus according to any one of claims 1 to 8, wherein the concealment processing means is an image predetermined for the concealment area of the document. Is superimposed.

  The invention according to claim 10 is the information processing apparatus according to any one of claims 1 to 8, wherein the area information is information specifying a rectangular secret area. .

  The invention according to claim 11 is the information processing apparatus according to any one of claims 1 to 8, wherein the area information is information designating a circular secret area. .

  According to a twelfth aspect of the present invention, there is provided an information processing method comprising: a provision request acquisition step for acquiring a provision request for the document from outside; and a document when the provision request is acquired in the provision request acquisition step. And the area information in the document, the area information holding means for holding the area information specifying the area to be hidden from the user in association with the area information holding means to identify the secret area A secret area specifying step; a secret processing step for processing the secret area specified in the secret area specifying step in a state where browsing is impossible; and an output step for outputting the document after the processing in the secret processing step. It is characterized by that.

  The invention according to claim 13 is an information processing program, characterized by causing a computer to execute the information processing method according to claim 12.

  According to the first aspect of the present invention, the area information holding unit holds the document and area information that specifies an area to be concealed from the user and is an area in the document, and provides a provision request. The acquisition unit acquires a document provision request from the outside, and the secret area specifying unit specifies the secret area based on the area information held by the area information holding unit when the provision request acquisition unit acquires the provision request. Then, the confidential processing means processes the confidential area specified by the confidential area specifying means so that it cannot be browsed, and the output means outputs the document processed by the confidential processing means. There is an effect that appropriate protection can be performed according to the level.

  According to the invention of claim 2, the display means displays the document, the area designation accepting means accepts area information among the documents displayed by the display means, and the area information holding means includes the document and the area. Since the area information received by the designation receiving means is stored in association with each other, there is an effect that the user can register a desired area as a secret area.

  According to the invention of claim 3, the secret rank acquisition unit acquires the secret rank of the transmission source of the provision request from the outside, the region information holding unit holds a plurality of region information, and each region information Based on the area information associated with the secret rank acquired by the secret rank acquisition means in the area information holding means, further holding the secret rank of the secret area designated by the area information in association with Thus, since the secret area is specified, each content included in the document data can be appropriately protected according to the secret level.

  According to the invention of claim 4, the transmission source identification information acquisition unit acquires transmission source identification information for identifying the transmission source from the transmission source of the provision request, and the secret rank holding unit transmits the transmission source identification information. The secret rank and the secret rank extraction unit extracts the secret rank associated with the transmission source identification information acquired by the transmission source identification information acquisition unit in the secret rank holding unit, The information holding means holds a plurality of area information, and further holds the secret rank of the secret area specified by the area information in association with each area information, and the secret area specifying means conceals the secret information in the area information holding means. Since the secret area is specified based on the area information associated with the secret rank extracted by the rank extracting means, the document data is appropriately protected according to the document data provision request source. There is an effect that it is possible.

  According to the fifth aspect of the invention, the registration unit associates the transmission source identification information with the secret rank and registers it in the secret rank holding unit, so that the user's desired secret rank can be registered. There is an effect.

  According to the invention of claim 6, the output destination information acquisition means acquires the output destination information designated by the output destination of the document, and the secret rank holding means associates the output destination information with the secret rank. The secret rank extracting means extracts the secret rank associated with the output destination information acquired by the output destination information acquiring means in the secret rank holding means, and the area information holding means stores a plurality of area information. And also holds the secret rank of the secret area specified by the area information in association with each area information, and the secret area specifying means corresponds to the secret rank extracted by the secret rank extracting means in the area information holding means. The secret area is identified based on the attached area information, and the output means outputs the processed document to the output destination indicated in the output destination information. An effect that can be protected.

  According to the seventh aspect of the invention, the registration unit associates the output destination information with the secret rank and registers it in the secret rank holding unit, so that the desired secret rank of the user can be registered. Play.

  According to the invention of claim 8, the display means displays the document, and the area designation accepting means accepts the area information in the document displayed by the display means and the secret rank corresponding to each area information. Since the area information holding unit holds the document, the area information received by the area designation receiving unit, and the secret rank in association with each other, it is possible to register the secret rank desired by the user.

  According to the invention of claim 9, the confidential processing means superimposes a predetermined image on the confidential area of the document. There is an effect that it can be protected.

  According to the tenth aspect of the invention, since the area information is information that designates a rectangular secret area, the document data can be appropriately protected.

  According to the eleventh aspect of the invention, since the area information is information for designating a circular hidden area, the document data can be appropriately protected.

  According to the invention of claim 12, when a provision request for a document is acquired from the outside in the provision request acquisition step, and a provision request is acquired in the provision request acquisition step in the secret area specifying step, The secret area is specified based on the area information held by the area information holding unit that holds the area information that specifies the secret area that should be concealed from the user. In the step, the secret area specified in the secret area specifying step is processed so as not to be browsed, and in the output step, the document after processing in the secret processing step is output. There is an effect that appropriate protection can be performed.

  According to a thirteenth aspect of the present invention, in the provision request acquisition step, a document provision request is acquired from the outside, and in the secret area specifying step, the provision request is acquired in the provision request acquisition step. A secret area is identified based on area information held by an area information holding unit that is an area in the document and that is associated with area information that designates a secret area that should be kept secret from the user. In the secret area specifying step, the secret area specified in the secret area specifying step is processed so that it cannot be browsed, and in the output step, the document after the process in the secret processing step is output. The effect that it is possible to perform proper protection.

  Exemplary embodiments of an information processing apparatus, an information processing method, and an information processing program according to the present invention are explained in detail below with reference to the accompanying drawings.

  FIG. 1 is a block diagram illustrating a configuration of a processing unit 2 that performs characteristic processing in a multifunction peripheral as an information processing apparatus according to an embodiment. The processing unit 2 includes a document provision request acquisition unit 100, a document data database (DB) 102, a document data extraction unit 104, a secret rank table holding unit 106, a secret rank extraction unit 108, and a secret part holding unit 110. A provision document generation unit 112, an output unit 114, a document registration request acquisition unit 120, and a document registration unit 122.

  The document provision request acquisition unit 100 acquires a document provision request from the user. Here, the document submission request is information for requesting provision of predetermined document data. The document provision request includes a document ID for identifying document data. Further, the document provision request includes a document provision method, that is, output destination designation information for designating the output destination of the document. As the output destination, the model of the output destination device may be specified, or an individual device may be specified regardless of the model. Output destinations include printing and display screens. Printing is when a document is provided as a printed material. A display screen is a case where a document is displayed on the display screen. In addition, download and the like can be set.

  The document provision request acquisition unit 100 further specifies the user type of the user who has transmitted the document provision request. In this embodiment, there are three types of user types: administrator, general user, and guest user. Specifically, a user ID for identifying a transmission source user is acquired together with a document provision request. The user type is included in a part of the user ID, and the document provision request acquisition unit 100 identifies the user type from the user ID.

  The document provision request acquisition unit 100 functions as a provision request acquisition unit, a transmission source identification information acquisition unit, and an output destination information acquisition unit.

  The document data DB 102 holds document data to be provided to the user. The document data extraction unit 104 extracts a document indicated by the document provision request acquired by the document provision request acquisition unit 100 from the document data DB 102.

  The secret rank table holding unit 106 holds a secret rank table. Here, the concealment rank indicates the concealment rank of each content included in the document information. The concealment rank differs depending on the content of information.

  FIG. 2 is a diagram schematically showing the data configuration of the concealment rank table 107. In the concealment rank table 107, the user type and the concealment rank are associated with each other. That is, the concealment rank is determined by the user type. Furthermore, the concealment rank is determined by the output destination. The secret rank table 107 according to the present embodiment functions as a secret rank holding unit.

  In the example shown in FIG. 2, in the case of a document manager, all information in the document can be browsed. For general users, the secret rank is B when the output destination is printing. For the guest user, the secret rank is A when the output destination is printing. The secret rank B is given to users who can share more information than the secret rank A. That is, the concealment rank B has lower concealment than the concealment rank A.

  Further, as another example of the user type, for example, it may be set for each group in the organization. As another example, it may be set according to the position of the employee. Thus, the user type can be freely set according to the desire of the administrator.

  The description returns to FIG. 1 again. The secret rank extraction unit 108 is associated with the output destination information included in the document provision request acquired by the document provision request acquisition unit 100 and the user type specified by the document provision request acquisition unit 100 in the secret rank table 107. Extract the concealment rank.

  The secret part holding unit 110 holds secret part information. Here, the confidential part information is information for specifying a confidential area that is an area to be concealed among documents held in the document data DB 102.

  FIG. 3 is a diagram schematically showing a data configuration of the secret part information 111 held by the secret part holding unit 110. In the secret part information 111, a document ID for identifying document data is associated with a secret part ID for identifying each secret part in the document data.

  Further, the secret part ID is associated with the shape of the secret part and an arrangement area on the document where the secret part is to be arranged, that is, a secret area and a secret rank. When the shape of the concealment part is a rectangle, the coordinates of the upper left vertex of the rectangle and the lengths of the horizontal and vertical sides are shown as the concealment area. When the shape of the concealment part is a circle, the coordinates of the center of the circle and the length of the radius are shown. The secret part holding unit 110 according to the present embodiment functions as a region information holding unit.

  The description returns to FIG. 1 again. The providing document generation unit 112 refers to the secret part holding unit 110 and identifies the secret area. Furthermore, the providing document is generated by superimposing the secret part corresponding to the secret rank extracted by the secret rank extracting unit 108 on the document data extracted by the document data extracting unit 104. That is, the providing document generation unit 112 functions as a secret area specifying unit and a secret processing unit.

  FIG. 4A to FIG. 4C are diagrams for explaining the provision document. 4A to 4C correspond to the secret part information 111 illustrated in FIG. FIG. 4A is a diagram illustrating the document data 200 identified by the document ID “01”. FIG. 4B is a diagram illustrating the provision document 202 created for the secrecy level B. In this way, the secret part 210 corresponding to level B is superimposed on the document data 200 in FIG. The secret part is an image set in advance. In this example, it is a black-painted image. FIG. 4C is a diagram illustrating the providing document 204 created at the secrecy level A. As described above, the secret parts 210 and 212 corresponding to the level A are superimposed on the document data 200 in FIG. As described above, the contents included in the document data 200 can be concealed for each region according to the concealment level.

  In this example, the content of the secret area is made invisible by superimposing the secret part on the document data 200. However, it is only necessary to make the content invisible. The contents of the area may be deleted.

  The description returns to FIG. 1 again. The output unit 114 outputs the provision document generated by the provision document generation unit 112 to an output destination included in the document provision request. Specifically, for example, the data is output to a printing unit or a display screen.

  The document registration request acquisition unit 120 acquires a document registration request from the user. The document registration unit 122 performs processing related to document registration. Specifically, the document data is registered in the document data DB 102. Further, a document ID is assigned to the document data, and the secret part is registered in the secret part holding unit 110 in association with the document ID. The document registration request acquisition unit 120 functions as an area designation receiving unit.

  FIG. 5 is a flowchart showing document registration processing by the processing unit 2. First, when the document registration request acquisition unit 120 acquires a document registration request (step S100), the target document data is registered in the document data DB 102 (step S102). Next, the document ID of the registered document data is issued (step S104). Next, when a secret part registration instruction is received from the user (step S106, Yes), the secret part is registered in the secret part holding unit 110 in association with the document ID according to the secret part registration instruction (step S108). When the registration of the concealment part is completed (No at Step S106), the document registration process is completed.

  FIG. 6 is a diagram showing a document registration screen 300 displayed when a document registration request is acquired. When the user selects “Yes” in response to “Do you want to register document data?”, The document data is registered in the document data DB 102. If the user selects “Yes” in response to “Do you want to set data confidentiality?”, The process proceeds to a process of registering the confidential part.

  7 and 8 are diagrams showing the secret part registration screens 302 and 304 displayed on the display screen when the secret part is registered. In the first secret part registration screen 302 shown in FIG. 7, the user selects the shape of the secret part and the secret area in the document data. Further, on the second secret part registration screen 304 shown in FIG. 8, the user selects an output method, that is, an output destination and a secret level.

  When the user selects “Yes” in response to “Do you want to register?”, The secret part information 111 corresponding to the selected content is registered in the secret part holding unit 110. When registering a plurality of concealment parts, select “Yes” for “Do you still want to configure concealment?”. Thereby, it is possible to return to the first secret part registration screen 302 and select a new secret part.

  As described above, the user can select a desired area of the document data as the confidential area and designate the confidential rank for each confidential area.

  FIG. 9 is a flowchart showing document provision processing by the processing unit 2. First, when the document provision request acquisition unit 100 acquires a document provision request (step S200), the user type of the transmission source is specified (step S202). Furthermore, an output destination is specified (step S204). Next, the secret rank extraction unit 108 extracts a secret rank from the secret rank table holding unit 106 based on the user type and the output destination (step S206).

  Next, the providing document generation unit 112 extracts, in the concealment part holding unit 110, the concealment parts that correspond to the document ID of the target document data and have the same concealment rank (step S208). . The providing document generation unit 112 generates the providing document by superimposing the extracted confidential parts on the document data (step S210). Next, the providing document is output to the designated output destination (step S212). Thus, the document providing process is completed.

  FIG. 10 and FIG. 11 are diagrams showing the providing document created by the processing unit 2. As shown in FIG. 10, when the transmission source is a general user, a document with a concealed part is provided, and when the transmission source is a document manager, all contents are displayed without superimposing the concealment part. The content to be provided can be made different depending on the user type, such as providing a document in a browsable state. Also, as shown in FIG. 11, the contents to be provided can be different depending on whether the output destination is printing or the display screen.

  FIG. 12 is a block diagram illustrating a hardware configuration of the multifunction machine 1. As shown in the figure, the multi-function device 1 has a configuration in which a controller 10 and an engine unit (Engine) 60 are connected by a PCI (Peripheral Component Interconnect) bus. The controller 10 is a controller that controls the entire multifunction device 1 and controls drawing, communication, and input from an operation unit (not shown). The engine unit 60 is a printer engine that can be connected to a PCI bus, and is, for example, a monochrome plotter, a one-drum color plotter, a four-drum color plotter, a scanner, or a fax unit. The engine unit 60 includes an image processing part such as error diffusion and gamma conversion in addition to a so-called engine part such as a plotter.

  The controller 10 includes a CPU 11, a north bridge (NB) 13, a system memory (MEM-P) 12, a south bridge (SB) 14, a local memory (MEM-C) 17, and an ASIC (Application Specific Integrated Circuit). 16 and a hard disk drive (HDD) 18, and the north bridge (NB) 13 and the ASIC 16 are connected by an AGP (Accelerated Graphics Port) bus 15. The MEM-P 12 further includes a ROM (Read Only Memory) 12a and a RAM (Random Access Memory) 12b.

  The CPU 11 performs overall control of the multifunction machine 1 and includes a chip set including the NB 13, the MEM-P 12, and the SB 14, and is connected to other devices via the chip set.

  The NB 13 is a bridge for connecting the CPU 11 to the MEM-P 12, SB 14, and AGP 15, and includes a memory controller that controls reading and writing to the MEM-P 12, a PCI master, and an AGP target.

  The MEM-P 12 is a system memory used as a memory for storing programs and data, a memory for developing programs and data, a memory for drawing a printer, and the like, and includes a ROM 12a and a RAM 12b. The ROM 12a is a read-only memory used as a program / data storage memory, and the RAM 12b is a writable / readable memory used as a program / data development memory, a printer drawing memory, or the like.

  The SB 14 is a bridge for connecting the NB 13 to a PCI device and peripheral devices. The SB 14 is connected to the NB 13 via a PCI bus, and a network interface (I / F) unit and the like are also connected to the PCI bus.

  The ASIC 16 is an IC (Integrated Circuit) for image processing having hardware elements for image processing, and has a role of a bridge for connecting the AGP bus 15, the PCI bus, the HDD 18, and the MEM-C 17. The ASIC 16 includes a PCI target and an AGP master, an arbiter (ARB) that is the core of the ASIC 16, a memory controller that controls the MEM-C 17, and a plurality of DMACs (Direct Memory) that perform rotation of image data by hardware logic. Access Controller) and a PCI unit that performs data transfer between the engine unit 60 via the PCI bus. An FCU (Fax Control Unit) 30, a USB (Universal Serial Bus) 40, and an IEEE 1394 (the Institute of Electrical and Electronics Engineers 1394) 50 are connected to the ASIC 16 via a PCI bus. The display screen 42 is connected to the USB 40. It may be connected to the IEEE 1394 interface 50.

  The MEM-C 17 is a local memory used as an image buffer for copying and a code buffer, and an HDD (Hard Disk Drive) 18 is a storage for storing image data, programs, font data, and forms. It is.

  The AGP 15 is a bus interface for a graphics accelerator card proposed for speeding up graphics processing. The AGP 15 speeds up the graphics accelerator card by directly accessing the MEM-P 12 with high throughput. .

  As described above, the present invention has been described using the embodiment, but various changes or improvements can be added to the above embodiment.

  FIG. 13 is a diagram illustrating an overall configuration of the information processing system 5 according to the first modification. The information processing system 5 includes a multifunction device 1, a document management server 3, and a user terminal 4. The document management server 3 has the processing unit 2 according to the embodiment. In this case, the user performs an operation such as a document provision request or a document registration request from the user terminal. In the document management server 3, the document provision request acquisition unit 100 acquires a document provision request from the user terminal 4. The document registration request acquisition unit 120 acquires a document registration request from the user terminal 4.

  Further, when the output destination is printing, the output unit 114 transmits the provision document to the multifunction device 1 to output it as a printed matter. When the output destination is a display screen, the providing document is transmitted to the user terminal and displayed on the display screen of the user terminal.

  As a second modification, in this embodiment, the user's secret rank is specified from the user type, but the secret rank itself is acquired from the user, and based on this, the corresponding secret part is used. Providing information may be generated. That is, the confidential rank is acquired via the document provision request acquisition unit 100. That is, the document provision request acquisition unit 100 according to this example functions as a secret rank acquisition unit.

2 is a block diagram illustrating a configuration of a processing unit 2 that performs characteristic processing in a multifunction peripheral as an information processing apparatus according to an embodiment. FIG. It is a figure which shows typically the data structure of the secrecy rank table 107. It is a figure which shows typically the data structure of the secrecy part information 111 which the secrecy part holding | maintenance part 110 hold | maintains. It is a figure which shows the document data 200 identified by document ID "01". It is a figure which shows the document 202 for provision produced with respect to the secrecy level B. FIG. It is a figure which shows the document for provision 204 produced in the secrecy level A. 6 is a flowchart showing document registration processing by the processing unit 2; It is a figure which shows the document registration screen 300 displayed when a document registration request | requirement is acquired. It is a figure which shows the confidential part registration screens 302 and 304 displayed on a display screen in the case of registration of a confidential part. It is a figure which shows the confidential part registration screens 302 and 304 displayed on a display screen in the case of registration of a confidential part. 6 is a flowchart showing document provision processing by a processing unit 2; It is a figure which shows the document for provision produced by the process part. It is a figure which shows the document for provision produced by the process part. 2 is a block diagram illustrating a hardware configuration of the multifunction machine 1. FIG. It is a figure which shows the whole structure of the information processing system 5 concerning the 1st modification.

Explanation of symbols

1 MFP 3 Document Management Server 4 User Terminal 5 Information Processing System 10 Controller 11 CPU
12 MEM-P
12a ROM
12b RAM
13 NB
14 SB
15 AGP bus 16 ASIC
17 MEM-C
18 HDD
30 FCU
40 USB
42 Display screen 50 IEEE 1394 interface 60 Engine unit 100 Document provision request acquisition unit 102 Document data DB
DESCRIPTION OF SYMBOLS 104 Document data extraction part 106 Secret rank table holding part 107 Secret rank table 108 Secret rank extraction part 110 Secret part holding part 111 Secret part information 112 Provision document production | generation part 114 Output part 120 Document registration request | requirement acquisition part 122 Document registration part 200 Document Data 202, 204 Documents to be provided 210, 212 Concealed parts 300 Document registration screen 302, 304 Concealed parts registration screen

Claims (13)

Area information holding means for holding a document and area information in the document in association with area information that designates a hidden area that should be hidden from the user;
Providing request acquisition means for acquiring the document providing request from outside;
A secret area specifying means for specifying the secret area based on the area information held by the area information holding means when the provision request acquiring means acquires the provision request;
A concealment processing means for processing the concealment area specified by the concealment area specifying means into a state in which browsing is impossible;
An information processing apparatus comprising: output means for outputting the document after processing by the concealment processing means. Display means for displaying the document;
An area designation accepting means for accepting the area information in the document displayed by the display means;
The information processing apparatus according to claim 1, wherein the area information holding unit holds the document and the area information received by the area designation receiving unit in association with each other. A secret rank acquisition means for acquiring the secret rank of the transmission source of the provision request from the outside;
The area information holding means holds a plurality of area information, and further holds a secret rank of the secret area specified by the area information in association with each area information,
The secret area specifying means specifies the secret area based on the area information associated with the secret rank acquired by the secret rank acquisition means in the area information holding means. The information processing apparatus according to 1. Transmission source identification information acquisition means for acquiring transmission source identification information for identifying the transmission source from the transmission source of the provision request;
A secret rank holding means for holding the transmission source identification information and a secret rank in association with each other;
The secret rank holding means further comprises a secret rank extracting means for extracting the secret rank associated with the transmission source identification information acquired by the transmission source identification information acquisition means,
The area information holding means holds a plurality of area information, and further holds a secret rank of the secret area specified by the area information in association with each area information,
The secret area specifying means specifies the secret area based on the area information associated with the secret rank extracted by the secret rank extracting means in the area information holding means. The information processing apparatus according to 1.   The information processing apparatus according to claim 4, further comprising a registration unit that registers the transmission source identification information and the secret rank in association with the secret rank holding unit. Output destination information acquisition means for acquiring output destination information designated by the output destination of the document;
A secret rank holding unit that holds the output destination information and a secret rank in association with each other;
The secret rank holding means further comprises a secret rank extracting means for extracting the secret rank associated with the output destination information acquired by the output destination information acquiring means,
The area information holding means holds a plurality of area information, and further holds a secret rank of the secret area specified by the area information in association with each area information,
The secret area specifying means specifies the secret area based on the area information associated with the secret rank extracted by the secret rank extracting means in the area information holding means,
The information processing apparatus according to claim 1, wherein the output unit outputs the processed document to the output destination indicated by the output destination information.   The information processing apparatus according to claim 6, further comprising a registration unit that registers the output destination information and the secret rank in association with the secret rank holding unit. Display means for displaying the document;
An area designation accepting means for accepting the area information in the document displayed by the display means and a secret rank corresponding to each area information;
The area information holding unit holds the document, the area information received by the area designation receiving unit, and the secret rank in association with each other. The information processing apparatus described.   The information processing apparatus according to claim 1, wherein the concealment processing unit superimposes a predetermined image on the concealment area of the document.   The information processing apparatus according to claim 1, wherein the area information is information that designates a rectangular secret area.   The information processing apparatus according to claim 1, wherein the area information is information that designates a circular hidden area. A provision request obtaining step for obtaining a provision request for the document from outside;
In the provision request acquisition step, when the provision request is acquired, region information is retained in association with a document and region information in the document that specifies a region to be concealed from the user A secret area specifying step for specifying the secret area based on the area information held by the means;
A concealment processing step of processing the concealment region identified in the concealment region identification step into a state incapable of browsing;
And an output step of outputting the document after processing in the concealment processing step.   An information processing program causing a computer to execute the information processing method according to claim 12.

Images