CN101462419A

CN101462419A - Safety printer

Info

Publication number: CN101462419A
Application number: CNA2008100654819A
Authority: CN
Inventors: 张健全; 万吉强; 谢志豪
Original assignee: SHENZHEN CATIC INFORMATION TECHNOLOGY INDUSTRY Co Ltd
Current assignee: Shenzhen AVIC Information Industry Group Co.,Ltd.
Priority date: 2008-03-03
Filing date: 2008-03-03
Publication date: 2009-06-24
Anticipated expiration: 2028-03-03
Also published as: CN101462419B

Abstract

The invention relates to a safe printer. The printer comprises a master control module, a sensing module, a communication module, a printer electric module and a safe information module, wherein the sensing module is connected with the master control module; the master control module comprises an ASIC chip; and the safe information module comprises safe information software. The safe printer also comprises an information security IC, wherein the information security IC is connected with the ASIC chip, and has built-in encryption and decryption algorithm and printer ID. The safe printer can generate an encryption seed cipher containing a unique ID of the printer because of the information security IC with built-in encryption and decryption algorithm and the printer ID to be different from any other safe printer, and a safe module of a main station is set to only identify a printer with a specific ID and establish communication connection with the printer, so to prevent print disclosing caused by the misconnection of the printer due to misoperation of the user, ensure that the main station can only establish the communication connection with the specific safe printer, and further improve safety of the safe printer.

Description

A kind of safe printer

Technical field

The present invention relates to a kind of printer, more particularly, relate to a kind of printer that guarantees file printout safety.

Background technology

Printer is the important output equipment that is widely used in the computer office system, realizes the purpose that e-file is exported in the paper spare mode of needs by printer.In the file of computer system processor, exist the information of a large amount of needs to be keep secret, as relate to information such as business secret, know-how, individual privacy, these e-files that relate to secret information are when printout, particularly when the remote transmission printout, need maintain secrecy, prevent to divulge a secret.

For being divulged a secret of in carrying out the transmission course that remote transmission prints, existing of the e-file that prevents to contain secret information or intercepted and captured the security breaches of distorting by intercepting and capturing, relevant Printer Information safe practice has appearred, 's 200310121780.7 patent of invention as Lianxiang (Beijing) Co., Ltd. in the patent No. of on December 23rd, 2003 application, disclose " a kind of print control program of the transmission that guarantees data security ": the user sends the request of verify data to printer by the print driver that has security module on the main frame, the printer that security module is installed is accepted this request, generate verify data and send to print driver, the data that print driver will need to print send printer to after verify data is encrypted, after printer receives the encrypted print data, deciphering obtains print data and verify data check verify data, prints when the check verify data is effective, discarded print job when invalid.Thereby guarantee that data file can only be printed by its owner, other people can't obtain by the intercepting and capturing print data and be printed document content, have guaranteed data security.

But, in above-mentioned existing printer information security technology,, the printer that security module is installed is connected because can both setting up communication with subscriber's main station, and subscriber's main station may exist misoperation of users to cause mistake to connect printer, causes misprint to export and divulges a secret.For example, in the business hall of bank, the printer that security module is installed that the subscriber's main station desire is exported to A with confidential documents prints, but because misoperation of users, subscriber's main station has been set up communication with the printer that security module is installed of B and has been connected, thereby causes confidential documents to be printed out and to cause and divulge a secret at the printer of B.

Summary of the invention

The technical problem to be solved in the present invention is, a kind of safe printer is provided, and what exist in the existing Printer Information safe practice of solution connects the defective that printer prints is divulged a secret owing to user misoperation causes mistake.

The technical solution adopted for the present invention to solve the technical problems is: construct a kind of safe printer, comprise the main control module, the sensing module, communication module, printing electromechanical module and the security information module that are connected with this main control module, described main control module comprises asic chip, described security information module comprises security information software, it is characterized in that: described safe printer also comprises and being connected with described asic chip and the information security IC of built-in enciphering and deciphering algorithm and this printer ID.

In safe printer of the present invention, described enciphering and deciphering algorithm is SHA algorithm, DES algorithm or SSL algorithm.

In safe printer of the present invention, described main control module comprises the FLASH sram chip, and described security information software is built in this FLASH sram chip.

Implement safe printer of the present invention, compared with the prior art, its beneficial effect is: safe printer comprises the information security IC of built-in enciphering and deciphering algorithm and this printer ID, this information security IC produces the encryption seed password that comprises the unique ID of this printer, this printer is different from other any safe printer, thereby the printer that the setting of subscriber's main station security module can only be discerned have specific ID is also set up communication with it and is connected, prevent that user misoperation from causing that being connected the printing that causes with the secure print chance error divulges a secret, the assurance subscriber's main station can only be set up communication with the particular safety printer and be connected, and further improves the security of safe printer.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the theory diagram of safe printer of the present invention.

The specific embodiment

As shown in Figure 1, safe printer of the present invention comprises main control module 2, the sensing module 1 that is connected with main control module 2, communication module 3, prints electromechanical module 5 and security information module 4, security information module 4 comprises security information software 41 and information security IC42, the ID of the built-in enciphering and deciphering algorithm of this information security IC and this printer, wherein:

The ID of printer is the code of any sign printer uniqueness characteristic.

Main control module 2 comprises asic chip 21, FLASH sram chip 22 and microprocessor MCU chip.Information security IC is connected with asic chip 21.

Sensing module 1 comprises that paper is to level sensor, trimming sensor, temperature sensor, printhead border sensor and print head sensor.

Communication module 3 comprises serial port, LPT and the USB mouth that is connected with asic chip.When printer need be connected with network, communication module 3 also was provided with the network interface that is connected with ASIC by network controller.In other embodiments, communication module 3 can be provided with the connectivity port of other combination.

Print electromechanical module 5 and comprise word vehicle motor, chart drive motor and the contraposition motor that is connected with asic chip by motor driver, and the printhead that is connected with asic chip.

In the present embodiment, the security information software 41 of security information module 4 is built in the FLASH sram chip 22.In other embodiments, security information software 41 can be built in other module of safety printer, is finally moved by the microprocessor MCU chip in the main control module.

The built-in enciphering and deciphering algorithm of information security IC42 can be (including but not limited to) SHA algorithm, DES algorithm or SSL algorithm etc.

Information security IC42 plays the effect of the coprocessor of asic chip, ID by its built-in enciphering and deciphering algorithm and this printer, provide the unique enciphered message that comprises printer ID information as one of kind subcipher of encrypting for printer, this printer is different from other any safe printer, thereby can be implemented in the subscriber's main station security module and to be provided with and to have printer that specific identity identifies and set up communication and be connected, thereby prevent to think that maloperation makes subscriber's main station and other safe printer set up communication and is connected the misprint output that causes and divulges a secret, further improve and print safety.

Claims

1, a kind of safe printer, comprise the main control module, the sensing module, communication module, printing electromechanical module and the security information module that are connected with this main control module, described main control module comprises asic chip, described security information module comprises security information software, it is characterized in that: described safe printer also comprises and being connected with described asic chip and the information security IC of built-in enciphering and deciphering algorithm and this printer ID.

2, safe printer as claimed in claim 1 is characterized in that: described enciphering and deciphering algorithm is SHA algorithm, DES algorithm or SSL algorithm.

3, safe printer as claimed in claim 1 or 2 is characterized in that: described main control module comprises the FLASH sram chip, and described security information software is built in this FLASH sram chip.