JPS62256046A - Information processing device - Google Patents

Abstract

PURPOSE:To improve the availability of a document, etc., for which security is needed, by providing a secrecy range setting means that adds a bit of secrecy start information, and a bit of secrecy terminating information by character unit, by the indication of a secrecy indicating means, and a means that performs an output control corresponding to the result of a set range. CONSTITUTION:A secrecy indicating part 102 inputs the indication of a character designated as the secrecy of the document, and a secrecy level indicating part 103 inputs the indication of the secrecy level of the character indicated as the secrecy. An input deciding part 104 decides whether bits of information inputted from those input part 101, secrecy indicating part 102, and secrecy level indicating means 103, are a bit of character information, a bit of documentation control information, a bit of secrecy indicating information and a bit of secrecy level indicating information, or a bit of transmission control information, or a bit of password information, etc., and sends out the bits of inputted information to respective part based on a decided result.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information processing device, and particularly to security protection.

Commonly used in office computers, personal computers, word processors, data processors or communication word processors.

In various information processing devices such as teletex.

Confidentiality protection of documents, etc. is becoming important.

However, in a conventional information processing apparatus such as a document creation/editing apparatus, a password (password) is added to the document itself for security protection.

Therefore, even if there is no need to protect the confidentiality of all the information in one document, there is an inconvenience that a document that has been set as confidential cannot be used by anyone other than the owner.

This invention has been made in view of the above points, and an object thereof is to improve the usability of documents, etc. that require security protection.

In order to achieve the above object, the present invention is provided with a function of setting a confidential range on a character-by-character basis.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.

FIG. 2 is an external perspective view showing an example of a document creation communication terminal device as an information processing device embodying the present invention.

This document creation communication terminal device supports katakana and hiragana necessary for creating one document, transmitting two documents, and controlling the system.

A keyboard 1 having keys for inputting character information such as kanji, alphabets, numbers, etc. and control information; and a display device 2 that displays information and document information necessary for various operations such as document creation/editing operations and document sending operations. 1 A wire dot serial printer 3 that records created document information, received document information, transmission records, reception records, etc. on recording paper, a floppy disk device, a thin hard disk device, and a system control unit 2
The main body 4 includes a communication control unit and the like as a communication control device, a mouse S, and a telephone 6.

Note that the specifications regarding teletex communication and facsimile communication in this document production communication terminal device comply with the CCfTT recommendations regarding teletex and facsimile and the recommended communication method for Japanese teletex devices announced by the Ministry of Posts and Telecommunications.

FIG. 3 is a block diagram showing the internal configuration of the main body 4. As shown in FIG.

The hard disk drive device (HDD) 7 is.

For example, it consists of a hard disk drive (HDD) with a capacity of 20 megabytes, an operating system (O8) with a resident process function capable of multitasking control, a kana-kanji conversion program, a kana-kanji conversion dictionary 2 created document information 1 document Stores sending/receiving programs, etc.

The floppy disk drive I (FDD) 8 is a known 5-inch double density floppy disk drive (FDD) and stores document information and the like.

System control unit:
5CU) 9 is in charge of overall control of this terminal device, and performs word processing processing such as document creation and editing, data compression processing of sent documents, procedures related to sending and receiving documents with the communication control unit 11, printing of received documents, etc. Execute local transmission/reception processing.

CR'rsl1 part (CRT control unit:
CRTCU) 10 is a display device! 2 and print control of the printer 3.

A communication control unit (CCU) 11 is a communication control device that transmits documents to destination terminal devices such as teletex terminal devices, facsimile machines (FAX), and document creation communication terminal devices of the same model. Control and communication control such as document reception control from the destination terminal device.

A data compression unit (DCR) 12 converts image data into a compressed code according to facsimile communication regulations.

The main body 4 is provided with a mouse interface for a mouse 5, a scanner interface for a scanner, etc., although not shown.

FIG. 4 is a block diagram showing an example of the system control section 9. As shown in FIG.

This system control section 9 includes a CPU 21 consisting of a 16-bit microprocessor etc. that controls the entire system.
, a path buffer 22 interposed between the second CPU 21 and the common bus, a timing generator 23, and a refresh controller 24.

The system control unit S also includes a RAM 2S having a capacity of, for example, 512 KB, which is composed of a system area where resident programs such as programs related to O8 and document reception reside, and other areas, and a RAM 2S that controls this RAM 25.
M controller 526゜27 and HDD 7 when the power is turned on.
The boot ROM 2B stores a boot program for controlling program loading from the RAM 25 to the RAM 25.

Furthermore, this system control unit 9 has a keyboard interface (I/F) that controls information transfer with the keyboard 1.
30, a hard disk interface (HDDI/F) 31 that controls the HDD 7, a buffer 32 interposed between this HDDI/F 31 and the common bus, and an FDD 9.
Floppy disk controller (FDC) 1 that controls
It also has 53.

Furthermore, the system controller also has a serial port (SIO) 34.35.

FIG. 5 is a block diagram showing an example of CRTCUlo.

The second CRTCU 1Q includes a slave CPU 41 consisting of a 16-bit microprocessor etc. that controls the entire system;
A bus I/F 42 interposed between the slave CPU bus and the common bus, and a ROM with a capacity of, for example, 16KB for IPL.
43, and a RAM 44 for shared memory and program memory shared with the system control unit.

The shared memory constituted by this RAM 44 consists of an index buffer, a management area, a record area, a data buffer for FAX transmission, a page buffer for printer, and a data buffer for image editing.

Further, this CRTCU10 includes a bus I/F 45 interposed between the slave CPU bus and the microbus, and a ROM 41:i for the microprogram.

It also includes a RAM 47 for program control memory.

Furthermore, this CRTCUlQ is a ROM for kanji patterns.
, character graphics (consisting of ROM for Rayplat data, ROM for system, and RAM for external character patterns)
CG) Memory 48 and CRT controller 4 days.

Furthermore, this CRTCUlo includes an image memory 51 that develops display data of the display device I CCRT) 2, a timing generation circuit 52 that controls one display timing, and a printer I/FS 3 that controls data transfer between the printer 3. FIG. 6 shows a communication control unit (CC
FIG. 2 is a block diagram showing an example of U) 11. FIG.

This communication control section 11 includes a CPUI (ii) consisting of a 16-bit microprocessor or the like that controls the entire system, and a parallel interface 62 interposed between a common bus and a common bus.
A ROM 65 that stores teletex communication control and fax communication control programs, a RAM 64 mainly used as a working memory, and a RAM 65 used as a communication memory that stores received document information, sent document information, and sent/received log information for inter-memory communication. It is equipped with

The communication control unit 11 also uses a multi-protocol serial control (MPSC) Ei6. MODEM 67° line interface 682
Line control unit [(AA-NCU) 69. Terminal 70.
A line protection device (PD) 71, a modem 6, and a modem interface 72 for the line control device 6. It is equipped with an NCU interface 73.

Furthermore, this communication $ control unit 11 includes a calendar 74 used for managing transmission/reception dates and times, an internal status setting switch (LP/5W) 75, a display interface 76 for displaying whether there is a received document, etc. It also includes an LED display 77.

Although not shown, this communication control unit 11 is an X-type communication system that enables the use of not only a public telephone line but also a packet switching network or a circuit switching network.

It also has a 21 interface and connector.

FIG. 7 is a block diagram showing an example of the DCR 12.
.

This DCR 12 is connected to the CPU 81. The entire system is controlled by a microcomputer system consisting of ROMB2 and local RAM93.

A shared memory 84 is connected to this DCR 12 and the system control unit S.
(host).

A command/response area that stores commands and responses, and an image data area that stores image data (image information data) to be compressed.

It consists of a compression code area that stores compressed image data (image information).

FCP (Facsimile Control Processor)
85 compresses the image data written in the image data area of the shared memory 84.

The compressed code (image information) after compression is written to the compressed code area of the shared memory 84.

The inverting data gate 86 inverts (reverses) the bit arrangement of write data to the shared memory 84 or read data from the shared memory 84 and passes the data, and the non-inverting data gate 87 passes the write data to the shared memory 84 or the read data from the shared memory 84. The read data is passed through with its bit arrangement unchanged.

The address decoder 88 decodes address data from the common bus to select a 1-inverted data gate 8S, a gate request AREQ, a gate request BRE'Q to select a non-inverted data gate 87, and a shared memory 84.
A host request H requesting host-side Φ usage for
Outputs O5T, register select REGSL, card select C3L, etc.

The selector 8S selects a data input/output line for the shared memory 84 from the FCP in response to a DCR request DCRRQ requesting use of the shared memory 84 from the FCP 95 and a host request HO8T from the address decoder 88.
95 or inverted data gate 86. Non-inverting data gate 8
7, and outputs an out enable ○E and a write enable WE for the shared memory 84.

It also outputs a bus flag BUSFALG.

The address decoder 90 selects a shared memory select C for the FCP 95 according to address data from the CPU 91.
-RAM5L, output FCP select FCPSL, R
ROM select ROM5L for OM82, local RAM select RRAM for local RAM81
SL, respectively.

Note that this DCR12 also includes a command status register S1, an interrupt flag 92, and the like.

FIG. 1 is a block diagram functionally showing a portion related to security control of this terminal device.

The input unit 101 is necessary for creating and editing text information 2 documents.

control information 1 The control information necessary for document transmission is input, the confidentiality instruction section 102 inputs an input indicating the characters to be confidential in the document, and the security level instruction section 103 inputs an instruction for the confidentiality level of the character specified as confidential. input. Note that these correspond to each key on the keyboard 1.

The input determination unit 104 determines whether the information input from these input units 1o1, the confidentiality instruction unit 102 and the security level instruction unit 103 is character information 2 document creation control information 1 confidentiality instruction information and confidentiality level instruction information is transmission control information Alternatively, it determines whether it is password information, etc., and sends the input information to each section according to the determination result. This human power determination section 104 corresponds to the input control section of the system control section 7.

The display section 105 displays document information, etc., the print section 106 prints the document information, etc., and the output control section 107 controls the display section 105 and the print section 10. These are the CRT display device 2, printer 3 and CRTC, respectively.
Corresponds to UIO.

The external storage section 10 stores document information, cosystem programs, etc., and the external storage control section 10 controls writing and reading of information to and from the external storage section 108 . These are all hard disk drive units! 7. HD in the floppy disk drive device 8 and system control section S
Corresponds to DI/F31 and FDC33.

A communication control section 110 controls teletex communication and facsimile communication with a destination terminal device, and corresponds to the communication control section 11 .

The document creation/editing control unit 111 receives character information 9 document creation control information 2 confidentiality instruction information and security level instruction information inputted via the input determination unit 104 , creates and edits the document, and processes the document via the output control unit 107 . The edited document is displayed on the display unit 105 or printed by the printing unit 106, and the document is stored in or read from the external storage unit 108 via the external storage control unit 109.

In addition, this document creation/editing control unit 111 adds confidential start information and confidential end information to the specified character information of the document when 1 confidential instruction information is input, and when confidential level instruction information is input. Add confidentiality level information to confidential information.

Furthermore, this document creation/editing control section 111
When reading a document stored in 0B is instructed and a password (specific character string) is added to the document, the password control unit 112 is controlled to compare the registered password with the input password. .

Furthermore, when the document creation/editing control unit 111 is instructed to read a received document stored in the external storage unit 108, the confidential information detection unit 1132 determines whether character information of the read document can be output. Level information 4. The level determination unit 115 makes a determination, and output control of character information is performed according to the determination result.

The password control unit 112 is the document creation/editing control unit 111
When receiving a comparison control instruction from the external storage controller 1,
09 to read the document password file and extract the registered password of the specified document, and output control unit 10
7 displays a password input instruction on the display unit 105, compares the password input from the input unit 101 via the input determination unit 104 with the registered password, and notifies the document creation/editing control unit 111 of the comparison result. do.

Confidential information detection section 113 detects whether the information sent from document creation/editing control section 111 is confidential information or not. 1. When the information is confidential information, 6. secrecy level detection section 114 notifies the confidentiality level detection section 114 to that effect. is the confidential information detection unit 113
When receiving a notification of detection of confidential information from , it detects the confidential level information and sends it to the level determining unit 115 . The level determination unit 115 compares the security level information sent from the security level detection unit 114 with the security level of the device stored in advance in the device level storage unit 116, and transfers the comparison result to the document creation/editing control unit 111. to notify.

When the local transmission/reception control unit 117 receives a transmission instruction from the input unit 101 via the input determination unit 104, it controls the external storage unit 109, reads out a designated transmission document from the external storage unit 108, and sends it to the communication control unit 110. Also, the received document sent from the communication control section 110 is stored in the external storage section 108 by controlling the external storage section 10 .

Next, the operation of this embodiment configured as described above will be explained with reference to FIG. 8 and subsequent figures.

First, document transmission processing in this document creation communication terminal device will be explained with reference to FIG.

When document transmission is selected from the Teletex communication menu in the work selection process (not shown), a menu for setting transmission conditions for document transmission is first displayed on the screen, and the transmission mode (normal transmission, emergency transmission) is set by key operation. communication, etc.),
Transmission time 2 Performs transmission condition setting processing to import document contents (Japanese text, etc.).

After this transmission condition setting process is completed, the document name registered in the document file is read out, a menu of one document name list is displayed on the screen, and the text "i1" is specified to take in the document name to be transmitted specified by key operation. Process.

After this document designation process is completed, the registered destination list is read from the destination file, a destination designation menu is displayed, and a destination designation process is performed in which the destination name specified by key operation is imported.

After the destination designation process is completed, the destination name, document name, etc. are displayed for confirmation, and if the cancellation is confirmed, the process moves to the cancellation process, and if confirmed, the process moves to the transmission preparation process described below.

In this transmission preparation process, the system control unit (SCU) 9 first passes transmission information such as the address (dial number) of the specified destination name, the name of the transmission document, and the transmission time to the communication control unit 11.

On the other hand, the 5 communication control unit (CCU) 11 starts executing the process shown in FIG. 9 in response to a predetermined command from the 5 CU 9, and receives the send (j information) sent from the 5 CU 9.

In addition, when the CCU cannot accept information from the 5CU9, such as when the CCUl is conducting document communication with the other party,
This processing, such as sending and receiving transmission information to and from the 5CU 9, waits until the communication is completed.

After that, the 5CU9 reads the mode registered in the destination list of the destination or the mode entered manually, and selects the fax (FAX) mode or teletex (ETEX) mode.
) mode.

And if the transmission mode is FAX mode.

Request file No, from CCUli, and
ctyll sends a predetermined file number in response to this file number and the request. Note that this file number is a file number for internal processing.

For example, in °Teletex mode rTDOc-XX×"
use.

Therefore, 5CU9 sends the file No. received from this CCUII to "Tooc-X" in teletex mode.
Change from XXJ' to rFDOc-XXXJ of FAX mode F.

Then, the 5CU 9 reads the designated transmission document from the FDD 8 and saves the document to the changed file number and rFD.
At the same time as adding Oc-XXXJ to the transmission file configured on HDD 7, the changed file No.
Return it to CUII.

On the other hand, if the transmission mode is not FAX mode,
That is, if it is in ETEX mode.

Similarly, the file number is requested from CCUll.

And the file No. for teletex received from CC: Ul 1.
J is attached as is to the specified transmission document and the transmission document is registered in the transmission file.

Note that when the CCUII receives the file number back from 5CU9, it converts the file No sent to 5CU9 to the file °N received from 5CU9.
o, and re-register.

Next, the transmission processing executed by the system control section S and the communication control section 11 will be explained with reference to FIGS. 10 and 11.

The communication control unit (CCU) 11 determines that transmission is to be started when the transmission time is specified, or immediately when the transmission time is not specified, and turns on the transmission status (requests transmission). ).

On the other hand, the system control unit (SCU) 9 polls CCUll at predetermined time intervals to check whether the transmission status has turned ON, and when the transmission status has turned ON, that is, there is a transmission request. Sometimes CC
:Requests the file number to be transmitted (transmission file N00) to Ul i.

On the other hand, CCUll sends the transmission file number to 5CU9 when receiving a request, and waits for a command from 5CU9.

Therefore, 5CU9 determines whether the transmission file No. received from CCUil is rTDOC-XXXJ or rFDOc-
XXXJ to determine whether the document is to be sent in FAX mode.

At this time, if the transmission file No. is a FAX mode file No.
Sends AX send document command.

If the file number is in ETEX mode, then ETEX
Issues a send document command.

Therefore, ccUll determines whether the command received from 5CU9 is a FAX transmission document command or not, and depending on the result of this determination, connects the line with the destination (other party) according to the rules of facsimile communication or teletex communication. Perform connection processing.

Then, when the line with the other party is connected and transmission becomes possible, the transmission document is sent to the 5C according to the transmission mode (FAX/ETEX) between the 5CU9 and the CCU1.
Performs transmission document sending and receiving document processing to be passed from U9 to CCUll.

Thereafter, the CCUii transmits the transmission document information received from the 5CU9 to the destination according to the transmission mode (FAX/ETEX).

Then, the 5CU 9 immediately performs the transmission termination process after sending the document to the CC: Uii, or if the transmission is not possible, and the CCUI 1 immediately processes the transmission after the document is sent to the other party or if the line connection is not possible. Perform transmission end processing,
Finish the series of processing.

Next, an example of one-document creation processing will be described with reference to FIG. 12.

In this document creation process, a key input from the keyboard 1 is waited for, and when there is a key input from the keyboard 1, it is determined whether the key input is a character key or not.

At this time, if the key is a character key, the input character code is stored in the address indicated by the write pointer in the document editing area, and after displaying the input character on the CRT display device 2, the key is put on standby. Return to

Furthermore, if the key input is not a character key, it is determined whether the security setting instruction is a security setting key provided on the keyboard 1 and consisting of a single key or a combination of keys.

If it is a function setting instruction, a confidential mode on code as predetermined confidential start information is stored at the address indicated by the write pointer in the document editing area.

After that, CRT display equipment! ! ! 2 displays the confidentiality level setting input prompt character to request the setting of the confidentiality level of the characters to be set (this is referred to as the "document security level"), and displays the confidentiality level as the confidentiality level information input from the keyboard 1. Stores the code at the address indicated by the write pointer in the document editing area.

Note that this security level setting displays a menu that prompts you to select from, for example, setting a new security level, setting the previously set security level, or setting the previously set device security level as the security level. Then, depending on the selection result, the security level code input from the keyboard 1, the previously stored security level code, or the security level code of the device is stored.

In addition, the document security level is, for example, 2 from 0 to 255.
56 levels can be set, with security level "0" being the highest security level. Furthermore, the security level of the device can be set in 256 levels from 0 to 255, with security level ``0'' being the highest security level. Although the security level of this device is set at the time of system generation, it is also possible to provide a security level setting switch and set it using this switch.

After that, it waits for the key force, and if there is a key force, it is determined whether the key force is a declassification instruction by a declassification key consisting of a single key or a combination of keys attached to the keyboard 1.

At this time, unless a key person gives instructions for declassification.

After determining whether the key is a character key or not, and if it is a single character key, the input character code is stored and displayed at the address indicated by the write pointer in the document editing area, and if it is not a character key, the key is manually operated. After performing other processing as appropriate, the system returns to key human power standby mode.

Then, when a declassification instruction using the declassification key is input manually, a predetermined confidential mode off code as 1-secrecy termination information is stored in the address indicated by the write pointer in the document editing area, and then the process shifts to the key manual standby state. .

Furthermore, if the key is not a security setting instruction using a security setting key, it is determined whether it is a 1g collection end key or not, and if it is a 1 editing end key, a process is performed to import the registered document name of the document currently being created. After that, the process of importing the password of the document is performed. Note that whether or not to add a password to the document can be arbitrarily selected, and the created document is registered in the floppy disk drive device 8.

Next, another example of one-document creation processing will be described with reference to FIG. 13.

In this document creation process, there is a key input from the keyboard 1, and if this key input is a confidential mode key consisting of a single key or a combination of keys attached to the keyboard 1, the writing pointer in the document editing area is used. Insert the confidential mode on code at the indicated address.

After that, the security level is set in the same way as the document creation process described above, and then the cursor is moved to the specified position in response to a cursor movement instruction input from the keyboard 1.

This cursor movement process is repeatedly executed until the attached execution key is pressed.

Then, when the execution key is input, after inserting the confidential mode off code at the address indicated by the write pointer in the document editing area, the characters between the confidential mode on code and the confidential mode off code are replaced with a predetermined substitute. Display by replacing with characters (blank space, shading, other predetermined characters, etc.).

Note that other processing is similar to the document creation processing described above.

These document creation processes will be specifically explained with reference to FIGS. 14 and 15.

Here, we will create a new document shown in Figure 14 (a),
It is assumed that rloOJ in the "cost price = 1 million" of this document is to be kept confidential.

In this case, if the document creation process shown in FIG. 12 is used first, the document can be edited as shown in FIG. In the area, a confidential mode on code (indicated by "mode○N") is stored in the address next to "Cost:", and by setting the confidentiality level (document security level) of this security setting, "mode○N notation" is stored. The document security level code (indicated by "document level") is stored at the next address.

Then, by manually inputting "100".

rloOJ is stored sequentially from the next address of "r'jcf level", and by pressing the declassification key to instruct declassification, a confidential mode off code (indicated by "mode OFF") is stored in the address next to rloOJ. , Furthermore, by manually pressing the “10,000” key, “Mode 0” is set.
``10,000'' is stored in the address following FFJ.

In this way, rloOJ to be kept secret is surrounded by the secret mode on code and the secret mode off code, and this character string is set as the secret range.

That is, in this document creation process, the confidential range is set during character input to create one document.

Next, in the case of the document creation process shown in FIG.
Cost price: After inputting up to 1 million J, move the cursor to rloO
By pressing down the security mode key while positioning J at "1", the security mode on code is inserted and stored before "1" in the same way as in the case described above, and by specifying the security level, the document security level code is inserted and stored. is inserted and stored at the next address.

After that, by positioning the cursor at the second "0" and pressing the execute key, a confidential mode off code is inserted after that rOJ, and the displayed rlooj becomes, for example, the 141st! Substitute characters (shaded) as shown in I (B)
Replaced by display. That is, in this document creation process, unlike the above-described document creation process, the setting of one confidential range is performed once the document is created. At the same time, characters set to 1 confidentiality are replaced with substitute characters and displayed at the document creation stage, so even if someone other than the creator views the edited document during creation and editing of the confidential document, the confidentiality will not be known.

Note that the two types of document creation processing described above can also be combined. In other words, you can set a confidential range when inputting a single character, and display the confidential character with a substitute character, or set the confidential range after inputting a character, and change the confidential character to a substitute character during creation. You can also choose not to.

Next, registered document output processing will be explained with reference to FIG. 16. Note that this registered document output processing is executed, for example, when updating a document or printing a document.

In this registered document output process, first, the registered document name to be read is taken in, and it is determined whether a document with this registered document name exists. If there is a document, it is determined whether the document is a received document or not. Whether or not this document is a received document can be determined, for example, by comparing the received document name file stored in the received document file with the registered document name.

And when the read document is not a received document.

Whether or not a password has been added to the document is determined, for example, by checking a document password file that stores passwords for each document.

At this time, if a password has been added, a password input request is displayed on the CRT display device 12, and it is determined whether the input password matches the password registered in the document.

Then, when the entered password matches the registered password, or when no password is added to the document, the specified document is read from the document file and output (displayed or printed). Perform document output processing.

In other words, even if a document is set to be confidential when it is created, if no password has been added to it, or if a password has been added but that password is entered, the security will be removed and all of the document will be protected. Output the contents. This allows the creator to output all contents, even if the document is protected for security.

On the other hand, when the document to be read is a received document, or when the document is not a received document but a password is added and the password is not input, the specified document is temporarily read into the internal memory.

Then, read the data from the read document.

First, it is determined whether the data is a confidential mode on code, and if it is a confidential mode on code, the next data, that is, the security level code is read out, and whether the document security level is higher than the security level of the device (document>device) is determined. If the document security level is higher than the device security level, the security mode flag F is set to F=1.

Furthermore, if the read data is not a confidential mode on code, it is determined whether the data is a confidential mode off code or not, and if it is an Ia confidential mode off code, the confidential mode flag F
is reset to "0".

Furthermore, if the read data is not a confidential mode off code, it is determined whether the data is character data or not. It is determined by the character that the security level is higher than the security level of the device, and if the security mode flag F = 1, that character cannot be output, so a predetermined substitute character is output, and if the security mode flag F = O. outputs the read character.

Furthermore, if the read data is not character data,
Processing is performed according to the read data.

After executing any one of these processes, it is determined whether or not the document has ended, and the same process is repeatedly executed until 4, which is the end of 5 documents.

Therefore, for example, the first
When a received document like the one shown in Figure 4 is received, all characters up to "Cost:" of this document are output, and when the first data is read, this data is "Secret mode on code (
Since the mode is 0N)J, the next data, that is, the "document security level code" is read out. At this time, if the document security level is higher than the security level of the device, the security mode flag F=1 is set.

As a result, when the next data after the "document security level code" is read, this data is character data "1", and since the security mode flag F=1 at this time, this character "1" is not displayed. Substitute characters (for example, shading) are displayed. Furthermore, substitute characters are similarly displayed for the next characters rQJ and rQJ.

Then, when the next data is read out, this data is "confidential mode off code (mode 0FF) J, so the secure mode flag is reset to F = 0, and when the first data is read out, this read data is a certain character " J is displayed.

In this way, for a received document, the characters in the set security range surrounded by the security mode on code and the security mode off code are not displayed when the document security level is higher than the device security level, so that the security can be protected.

Further, even if the document is not a received document, characters in the set confidential range are not subject to editing, so that the document can be protected from being changed by anyone other than the creator.

In this way, in this document creation communication terminal device, the confidentiality can be set by one character, which improves the usability of one document.Also, when sending a document, it is possible to keep a part of the document confidential and send it to the other party. Improves the usability of received documents.

In addition, in the conventional document creation communication terminal device.

When sending a document where you want to keep part of the document confidential instead of the entire document, mask the part you want to keep confidential by blanking or shading, depending on the recipient's confidentiality level, and then send the document. It took time and effort to send such confidential documents. Moreover, even when transmitting the same document to multiple terminal devices, the document must be masked according to the level of the recipient, making it difficult to use a broadcast device.

On the other hand, by making it possible to set the security for each character of the document and adding information indicating the security level, as with this document creation communication terminal device, it is possible to send documents to multiple recipients with different security levels. Even in such cases, only one document is required and a broadcasting device can be used, making document transmission easy.

In the above embodiment, an example was described in which the present invention was implemented in a document creation communication terminal device.

For example, the present invention can be implemented in other information processing devices such as document creation/editing devices and data processing devices that do not have a communication function.

In addition, in the above embodiment, an example was described in which a confidential document is sent without adding a password to the document, but it is possible to provide a function to send a confidential document with a password added and input the password on the receiving side. Submission of this password may be made so that it can be declassified by .

For example, in Teletex, CCITT Recommendation S, 62
This can be done using private parameters defined in the session or document control procedures in the end-to-end control procedures.

Summer-1 As explained above, according to the present invention, security can be set for part of one document, improving the usability of the document.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is an external perspective view showing an example of a document creation communication terminal device embodying the present invention, FIG. 3 is a block diagram showing an example of the internal configuration of the main body, and FIG. 4 is a block diagram showing the system control unit. figure. FIG. 5 is a block diagram showing the same <CRTCU, and FIG. 6 is a block diagram of the communication control unit. FIG. 7 is a block diagram of the same DCR, and FIG. 8 and FIG. FIGS. 10 and 11 are flowcharts showing an example of transmission processing. 12th [! I and FIG. 13 are flowcharts showing different examples of document creation processing, and FIG. 14 and FIG. 151! ! 16 is a flowchart illustrating a detailed explanation of the document creation process, and FIG. 16 is a flowchart illustrating an example of the registered document output process. 101... Input section 102... Confidential instruction section 1
03...Secret level instruction section 105...Display section 106...Display section 108
...External storage unit 110...Communication control unit 111.
...Document creation/editing control section 113...Confidential information detection section 114...Secret level detection section 115...Secret level determination section 116...Device level storage section

Claims (1)

[Scope of Claims] 1. Confidentiality instruction means for instructing security setting, security range setting means for adding security start information and security end information character by character according to the instruction result of the security instruction means, and security range setting. 1. An information processing device comprising: output control means for controlling output according to a setting result of the means. 2. It also includes a means for setting the security level of the security range set by the security range setting means, and the output control means receives the document according to the security level of the security range set in the received document and the security level of the predetermined device. The information processing apparatus according to claim 1, further comprising means for controlling the output of documents.