JPS62202678A - Confidential facsimile equipment - Google Patents

Abstract

PURPOSE:To apply confidentiality of coded information while keeping the compatibility of facsimile communication by applying scrambling to coded information based on data designated by the user in storing the coded information. CONSTITUTION:Various modes (selection of communication service and opposite telephone number) of an original to be stored and its own password are inputted to an operation section 4. A reader 1 reads the data of an original, a coder 2 uses the password as scramble data, applies coding and stores the result in a storage memory 3. In sending data, the data is read from the storage memory 3, the password is used and an inverse scrambler 7 of a controller 5 applies scrambling and converts the data into the original code and the result is sent to a line 8.

Description

D. Technical Field The present invention relates to a method for concealing data during memory storage in a facsimile, and a method for concealing file data itself on a shared memory of a file server or the like.

■Prior Art Conventionally, there are the following methods for protecting data in fax machines.

1) Receive messages based on matching phone numbers and passwords.

2) Closed groups prohibit access from outside the group.

3) Calling the other party during communication and asking the other party to enter a password.

Once you find your login name and password on a computer, you can access the contents without any restrictions.

Modern facsimiles are equipped with large memories and store a considerable number of pages of encoded information, but this is due to encoding methods such as MMR, MR, and Mll (especially MMR).
) is included.

If the data is taken out for this purpose, it is easy to reproduce it.

If you create a program, you can easily play it on a shared memory such as a file server. It is also possible to take it out on a floppy disk.

However, this encoded information is not protected.

(Currently, facsimile messages are kept confidential by setting a password using a confidential service, etc.)

This is not done for the data compression code itself.

Therefore, if this data can be read by some method, and the encoding methods such as MMR, MR, MH, etc. are known, the original image can be easily reproduced.

The purpose of this is to randomize the encoded data itself based on data specified by the user, thereby making it impossible to reproduce the image even if one knows the codes such as MMR and MRlMII.

(4) Configuration FIG. 1 is a block diagram of an embodiment of the present invention showing the configuration when a document is read from a reading device, stored in an encoded storage memory, and transmitted.

In the figure, 1 is a reading device, 2 is an encoding device, 3 is a storage memory, 4 is an operation section, 5 is a control device, 6 is a scrambler, 17 is a descrambler, and 18 is a line.

The operator enters his or her password before entering various modes of the document to be VIMed (selection of communication service, telephone number of the other party, etc.) into the operation section 4.

If this password is used as scramble data of the encoding device 2, the data MMR stored in the storage memory 3
(MR, MH), etc. will be scrambled (randomized) with that code, and even if the data can be read without knowing the password, it will not be possible to reproduce it at all.

When transmitting data from the storage memory 3, the password is recorded on another table (not shown) for managing the stored data, and read out and sent to the descrambler 7 of the control device 5.
, scramble the original M M R, M R, M
By converting it into a code such as H and sending it out to line 8, compatibility with other fax machines is achieved.

FIG. 2 is a diagram showing a configuration for storing received data in a memory and outputting it to a recording device in the present invention. 9 is a recording device, and other symbols are the same as those shown in FIG. 1.

This password is received from the transmitting side by the control device 5, is scrambled by the scrambler 6, and is stored in the storage memory 3.

When outputting to the recording device 9, anyone other than the person who knows this password can output it, but it cannot be played back as an image. Outputs as scrambled data.

As a method of scrambling, for example, image information is converted into a code, a scrambling polynomial is created for each input pass2-1, and the data is sent out to memory 1 byte or 1 word at a time. accumulate.

You can do the same thing with descramble.

(2) Effects As explained above, the present invention has the advantage that encoded information in facsimile can be concealed, and data can be concealed while maintaining compatibility of facsimile communication.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention showing a configuration in which a document is read from a reading device, encoded, stored in a memory, and transmitted, and FIG. 2 is a block diagram of an embodiment of the present invention in which received data is stored in a memory and recorded. FIG. 2 is a diagram showing a configuration when outputting to a device. DESCRIPTION OF SYMBOLS 1...Reading device, 2...Encoding device, 3...Storage memory, 4...Operation section, 5...Control device, 6...Scrambler-17...Descrambler -18...Line, 9...Recording device.

Claims (2)

[Claims] (1) When generating encoded information and storing it in memory, the code is scrambled based on the data specified by the user, and the specified data can be read out without knowing it, but the original image is Make it impossible to play at all,
A confidential fax machine characterized by concealing data stored in memory. (2) When storing encoded information received by facsimile in memory, it is scrambled and stored using data specified by the sender, and anyone who does not know the data can read it, but
The confidential fax machine according to claim 1, wherein the original image cannot be reproduced at all.