JPH02309765A - Facsimile transmitter - Google Patents

Abstract

PURPOSE:To shorten the ciphering time and deciphering time of facsimile data by judging whether the output of an encoding means is ciphered, line by line, according to a specific rule and supplying the output of the encoding means to a transmitting means or deciphering means according to the judgement result. CONSTITUTION:The facsimile data 1 is encoded by the one-line encoding means 11, line by line. Then a ciphering processing judgement means 12 judges whether the line is ciphered or the encoded data is sent as it is. When the deciphering processing judgement means 12 decides 'no deciphering', the one-line data transmitting means 14 sends the data. When 'deciphering' is decided, the deciphering means 13 deciphers the one-line encoded data and sends the ciphered data by the one-line data transmitting means 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to a facsimile data encryption device for a facsimile transmission device.

〔overview〕

The present invention enables a facsimile transmission device to shorten the time required to encrypt and decode facsimile data by partially encrypting a line of coded facsimile data instead of encrypting all lines. It is something.

[Conventional technology]

Conventionally, facsimile transmitting apparatuses have encrypted all facsimile data when encrypting data.

[Problem that the invention seeks to solve]

However, with such conventional facsimile transmission equipment,
When encrypting facsimile data, all of the facsimile data is encrypted, which has the drawback that it takes a long time to encrypt and decrypt it.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks, and an object of the present invention is to provide a facsimile transmitting apparatus that can shorten the time required to encrypt and decode facsimile data.

[Means for solving problems]

The present invention includes an encoding means for encoding facsimile data, an encoding means for encoding the output of the encoding means,
In a facsimile transmission device comprising a transmission means for transmitting transmission data to a destination, it is determined whether or not the output of the encoding means is to be encrypted line by line based on a predetermined rule, and based on the result of this determination. and a cryptographic processing determining means for supplying the output of the encoding means to the transmitting means or the encrypting means, and the transmitting means sequentially transmits either the output of the cryptographic processing determining means or the output of the encrypting means. It is characterized by including means for outputting it as data.

[Effect]

The encryption processing determining means determines whether or not to encrypt the output of the encoding means line by line based on a predetermined rule, and provides the output of the encoding means to the transmitting means or the encoding means based on the result of this determination. . The transmitting means sequentially transmits either the output of the cryptographic processing determining means or the output of the encrypting means to the other party as transmission data. The above operations can shorten the time for encrypting and decoding facsimile data.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. The figure is a block diagram of a facsimile transmitter according to an embodiment of the present invention. In the figure, the facsimile transmitting device 10 includes an l line encoding means 11 that encodes facsimile data l line by line, and an encoding means 13 that encodes the output of the line encoding means. and,
The apparatus includes a 1-line data transmitting means 14 for transmitting transmitting data line by line as a transmitting means for transmitting transmitting data to a destination via a communication path.

Here, the feature of the present invention is that it is determined whether or not the output of the l-line encoding means 11 is to be encrypted line by line based on a predetermined rule, and based on the result of this determination, the one-line encoding means 11 output to one line data transmitting means 14
Alternatively, the one-line data transmitting means 14 includes means for sequentially outputting either the output of the cryptographic processing determining means 12 or the output of the encrypting means 13 as transmission data. There is a particular thing.

The operation of the facsimile transmitter having such a configuration will be explained. In the figure, first, facsimile data 1 is encoded line by line by line encoding means 11.

Next, the encryption processing determining means 12 determines whether the line should be encrypted or the encoded data should be sent as is.

The cryptographic processing determining means 12 is realized, for example, as follows.

(Example 1) Simple judgment process Both the sender and receiver decide in advance the lines to be encrypted. The line spacing to be encrypted is 3.4 lines at maximum, and is not equally spaced.

(Example 2) Judgment processing using random numbers Both the sender and receiver have the same random number generator, and decide whether to encrypt or not based on the random number data. For example, if it is a multiple of 30, it will be encrypted.

If the encryption processing determining means 12 determines that the data is not encrypted, the one-line data transmitting means 14 transmits the data. If it is determined to "encrypt", the encrypting means 13 encrypts one line of encoded data. (
(The encryption method can be decided in advance by both the sender and receiver.) 1 line of encrypted data data transmission means 1
Send by 4.

On the receiving side, the opposite can be done.

As mentioned above, this embodiment partially encrypts lines, so that in the case of facsimile data, the meaning of only one line of information cannot be understood, so by partially encrypting it, the original information can be known. It is possible to shorten the encryption time and decryption time.

〔Effect of the invention〕

As explained above, the present invention has the excellent effect of shortening the encryption time and decryption time.

[Brief explanation of the drawing]

The figure is a block diagram of a facsimile transmitter according to an embodiment of the present invention. ■...Facsimile data, 10...Facsimile transmission device, 11...1 line encoding means, 12...
Encryption processing determining means, 13... Encryption means, 14...
1 line data transmission means. Example

Claims (1)

[Claims] 1. A facsimile transmission comprising an encoding means for encoding facsimile data, an encoding means for encoding the output of the encoding means, and a transmitting means for transmitting the transmission data to the other party. In the apparatus, it is determined whether or not the output of the encoding means is to be encoded line by line based on a predetermined rule, and the output of the encoding means is transmitted to the transmitting means or the encoding means based on the result of this determination. 1. A facsimile transmitting apparatus, further comprising: a cryptographic processing determination means for determining the cryptographic processing, and wherein the transmitting means includes means for sequentially outputting either the output of the cryptographic processing determination means or the output of the encryption means as transmission data.