KR101116605B1 - Print preserving system and method - Google Patents

Abstract

The present invention relates to a print security system and method for classifying a document to be printed by security level, performing an authentication procedure corresponding to the level, and performing a print job. The system is a print security system comprising a computer and an output device connected to the computer, wherein the computer is configured to provide a security level setter for setting a security level and an authentication password corresponding to the security level and a print instruction on the computer. A security transmitter for requesting input of the authentication password set in the indicated document and transmitting the indicated document, security level, and the set authentication password to the output device when the input authentication password is a set authentication password is provided. And a memory for storing a document, a security level, and an authentication password, the memory requiring input of the stored authentication password for a print instruction on an output device, and outputting a stored document if the input authentication password is the stored authentication password. It features.

According to the present invention, all created documents are managed according to security level, and security management can be performed by both a computer instructing printing and an output device on which printing is performed, so that more efficient security can be achieved during printing.

Description

Print preserving system and method

1 is a block diagram of a conventional print security system.

2 is a block diagram of another conventional print security system.

3 is a block diagram of a print security system according to an embodiment of the present invention.

4 is an overall flowchart of a print security method according to an embodiment of the present invention.

5 is a detailed flowchart of step A of FIG. 4.

FIG. 6 is a detailed flowchart of steps B and C of FIG. 4.

7 and 8 are detailed flowcharts of step D of FIG. 4.

<Description of Symbols for Main Parts of Drawings>

10, 100, 300: computer 20, 110, 310: central processing unit

40: security level setter 50: security transmitter

60, 200, 400: Output device 70: Memory

120, 320: Document creator 130, 340: Drive device

330: Monitor

The present invention relates to a print security system and method, and more particularly, to a print security system and method for classifying a document to be printed by security level, performing an authentication procedure corresponding to the level, and performing a print job.

1 is a block diagram of a conventional print security system. Referring to FIG. 1, it can be seen that the output device 200 is connected to the computer 100. In this case, the computer 100 may provide a document writer 120 that provides an interface for writing a document to the user, a driving device 130 for instructing the output device 200 to print, and driving the output device 200 and a document writer ( 120 and a central processing unit 110 for controlling each of the drive unit (130). The document writer 120 is generally implemented by executing a general document writing program installed in the computer 100.

As a result, in order to print the document after the user creates the document using the document writer 120, the user must control the driving unit 130 through the central processing unit 110. In this case, the central processing unit 110 instructs the driving unit to instruct the driving unit 130 to drive the output device 200.

On the other hand, the drive device 130 is provided with a specific password from the time the driver is installed, the drive device 130 requires the password input for the instructions of the central processing unit 110. When the password input in response to the request matches the password, the driving device 130 commands the output device 200 to drive.

As a result, the prior art of FIG. 1 requires a specific password to be entered each time a document is to be printed, thereby preventing any user from outputting the document.                         

However, according to the prior art of FIG. 1, there is a problem in that a password must be input every time all documents to be printed are output, and a difference in security degree required for each document cannot be reflected in a print job. .

2 is a configuration diagram of a printing apparatus with another conventional security function. Referring to FIG. 2, it can be seen that the output device 400 is connected to the computer 300. On the other hand, the computer 300 is installed in the document writer 320, which provides an interface capable of document creation to the user, a command to print to the output device 400 and a driver for driving the output device 400 is installed (install) Monitor 330 and document writer 320, monitor 330, which stores the configuration information of the drive device 340, the local computer 300, and the document data to be printed, and transmits them to the drive device 340. A central processing unit 310 controls each of the devices 340. Meanwhile, the monitor 330 inserts watermark information into document data to be transmitted to the driving device 340.

The central processing unit 310 instructs the driving unit to instruct the driving unit 340 to drive the output unit 400, and the output unit 400 executes a print job by the command of the driving unit 340 which has received the instruction. To perform. However, the instruction of the central processing unit 310 is transmitted to the driving unit 340 via the monitor 330, the driving unit 340 received the instruction to add the watermark information to the security data to be printed output device 400 To pass). The output device 400 receiving the security data performs a print job.

As a result, according to the related art of FIG. 2, there is an inconvenience in that a monitor for performing a monitoring function is required for a general printing apparatus.

The technical problem to be achieved by the present invention is to assign a security level to the created document and to control the print job according to the given security level, the control is a print security system made in both the computer for instructing printing and the output device in which printing is performed. And a method.

In order to solve the above technical problem, a print security system according to the present invention is a print security system comprising a computer and an output device connected to the computer, wherein the computer is authenticated corresponding to the security level and the security level in the created document. A security level setter for setting a password and a print instruction on the computer request input of an authentication password set in the indicated document, and if the input authentication password is the set authentication password, the indicated document, the security level, and And a security transmitter for transmitting the set authentication password to the output device, wherein the output device stores the transmitted document, security level, and authentication password, and inputs the stored authentication password to a print instruction on the output device. And a memory for requesting authentication, wherein the input authentication password is the stored authentication password. If the stored document is characterized in that for outputting.

In order to solve the above technical problem, the print security system according to the present invention includes a storage unit for storing document data, an output password setting unit for setting an authentication password in the stored document data, and if the authentication password is input from the user, And a determination unit for determining whether an authentication password and the set authentication password match and an output unit for outputting the stored document data when the determination unit determines that the authentication password matches.

In order to solve the above technical problem, the print security method according to the present invention, in the print security method through a system comprising a computer and an output device for outputting the data transmitted from the computer, (A) security level to the created document data And setting an authentication password corresponding to the security level to the document data when the security level is a secret level, (B) being requested to print the document data through the computer and receiving the document data. Inspecting the security level set in (C), if the checked level is a confidential level and the computer determines that the authentication password input by the user and the set authentication password match the document data, security level, and the like. The authentication password is transmitted to the output device, and if the checked level is a level that does not require a secret, Transmitting the document data and the security level to the output device, and (D) outputting the transmitted document data.

In the step (D) of the present invention, (d1) outputting the document data when the grade transmitted does not require a secret; (d2) the grade when the grade transmitted requires a secret; (D3) the output device receives an authentication password from a user who is requested to print the stored document data, and the inputted authentication password is the set authentication password. Preferably, the method includes outputting the document data if there is a match.

In order to solve the above technical problem, the printing security method according to the present invention comprises the steps of: (A) storing the document data in the output device, (B) setting the authentication password to the stored document data and (C) from the user And if the authentication password is input, outputting the stored document data when the input authentication password matches the set authentication password.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a print security system and method according to the present invention. However, terms to be described below are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

3 is an overall configuration diagram of a print security system according to an embodiment of the present invention.

Referring to FIG. 3, it can be seen that the output device 60 is connected to the computer 10, and the output device 60 includes a memory 70. The computer 10 has a security level setter 40 for assigning a security level and an authentication password corresponding to the security level to the created document data, and a security for controlling transmission of the document data received from the print command to the output device 60. And a central processing unit 20 for controlling each of the transmitter 50, the security level setter 40, and the security transmitter 50.

The security grader 40 includes a grader 42, an encryption setter 44, and an information store 46. At this time, the grader 42 assigns a security grade to the document data constituting the created document. The security grades can be classified into three grades: top secret grade, top secret grade, and general grade, in order of the highest degree of security required. Top secret grades and non-secret grades are secret grades and general grades are non-secret grades. Top secret ratings require a higher degree of security than confidential ratings. Hereinafter, a document having a top secret level is referred to as a top secret document, and a document having a confidential level is called a confidential document.

The document data to which the top secret level or the top secret level is assigned among the security levels is given an authentication password corresponding to the security level by the encryption setter 44. In addition, the document data, security level and authentication password are stored in the information storage 46 for each document.

Meanwhile, the security transmitter 50 includes a discriminator 52, a generator 54, a transmitter 56, and a driver 58.

If the central processing unit 20 instructs the security transmitter 50 to drive the output device 60, the security transmitter 50 responds as follows before complying with the instruction.

First, the discriminator 52 grasps the security level set in the document data from the security level stored for each document in the information storage 46. As a result, if it is determined that the security level is not the general level, the security transmitter 50 requests the input of the authentication password set by the password setter 44, and if the user inputs the set authentication password in response to the request, the document data is sent. Transfer to output device 60. However, if the security level is found to be a general level, the security transmitter 50 transmits the document data to the output device 60 without requiring an authentication password. The transmission to the output device 60 is made by the transmitter 56 of the secure transmitter 50.

The data transmitted to the output device 60 includes document data and data relating to the security level set in the document data. As such, data in a form in which data about a security level is added to document data is called security data, which is generated by the generator 54 of the security transmitter 50. On the other hand, the driver 58 of the security transmitter 50 drives the output device (60).

4 is a flowchart illustrating a print security method according to an embodiment of the present invention, FIG. 5 is a detailed flowchart of step D of FIG. 4, FIG. 6 is a detailed flowchart of steps B and C of FIG. 4, and FIGS. 7 and 8. Is a detailed flowchart of step D of FIG. The printing method shown in FIGS. 4 to 8 will be described with reference to the printing system shown in FIG. 3.

In the print security method according to the present invention, the computer 10 sets a security level on the document data, and if the security level is a top secret level or a confidential level, also sets an authentication password (step 10), and receives a user's printing instruction. Determine the security level of the document (step 20), and if the security level is the general level, the document data is transmitted to the output device 60 (step 50). The document data is transmitted to the output device 60 only in the case where the authentication password inputted by the user is requested (step 10). The data is completed by outputting (step 70).

Referring to Figures 5 to 8 will be described in more detail as follows. In general, the security level registration program installed in the computer 10 performs the role of the security level setter 40, in the case of the present invention, the security level registration program is installed (step 12) and the user is the security level registration program Set the security level to the document data using (Step 14).

If the security level is set to the top secret level or the confidential level (step 16), the authentication password is also set in the document data (step 18), and the security level setter 40 determines the information of the document, that is, the document data, While the document data creation date, the security level of the document data and the set authentication password are stored in the computer 10, if the security level is set to the general level (step 16), the security level setter 40 does not set the authentication password. Immediately, the information of the document, that is, the document data, the document data creation date, and the security level of the document data, are stored.

Then, any user who wants to output the document instructs the computer 10 to output (step 32), and the discriminator 52 of the computer 10 sends the instruction stored in the security level setter 40. The security level set for the document is found from the received document data (step 34).

As a result, if it is determined that the security level is not the general level (step 52), the computer 10 requests the user who inputs the authentication password (step 32) to input the authentication password (step 54). If the authentication password is not set (step 18), all print jobs are stopped (step 58), and if the authentication password is set, including data on security level information in the header of the document data (step 60), The document data including the security level information is transmitted to the output device 60 together with the set authentication password information (step 62). However, if the security level is determined as the general level (step 52), the computer 10 immediately includes the data indicating the general level in the document data header (step 60), and outputs the document data including the security level information. Transfer to 60 (step 62).

The output device 60 analyzes the header of the transmitted document data (step 72). As a result, if the security level is determined to be a general level (step 74), it is output without delay (step 94), but if it is determined to be a top secret or confidential level (step 74), the transferred data (step 62) is transferred to the memory 70 Save it (step 78, step 80). More specifically, in the case of the top secret grade, it is stored in the top secret document storage memory 71 (step 78), and in the case of the outside secret grade, it is stored in the outside secret document storage memory 72 (step 80).

Thereafter, any user who wants to view the stored secret document (step 78, 80) accesses the top secret document storage memory 71 or the external secret document storage memory 72 (step 82), and in response to the output device ( If 60 is inputted the authentication password to the approaching user (step 84), and if the input authentication password is stored (step 78, step 80) is not an authentication password (step 86), the output device 60 displays a message that cannot be output. (Step 88).

However, if the authentication password entered (step 84) is an authentication password stored (step 78, step 80) (step 86), all document data corresponding to the authentication password is displayed (step 90) and selected by the user. The document data is printed (step 92).

As described above, the printing method according to the present invention requires the user who wants to print confidential document data once twice on the computer 10 and once on the output device 70. That is, the user must be verified that the user is a legitimate user when instructing printing on the computer 10, and then again when the user wants to view the printed matter at a certain time interval. However, a user who receives the first verification may be different from a user who receives the second verification.

An example to which the present invention is applied will be described as follows. For example, user A creates the top secret documents q1, q2 and confidential documents o1, o2, o3 on the computer 10, sets the authentication password to a on q1 and q2, and sets the authentication password to b on o1, o2, and o3. Let's say At this time, user A is an employee of a large company, all confidential documents are visible only to the company's board of directors, and confidential documents are only visible to boards of directors and deputy boards. Suppose the passwords a and b, and the deputy knows b. If director B has already instructed the computer 10 to print q1, q2, o1, o2, o3, and a few days later, if director C wants to print the q2 document at a time that can be received only by himself / herself, The director C may input the authentication code a to the output device 60 without instructing the computer 10 to print, and select q2 among q1 and q2 displayed on the output device 60. After all, even if the manager D shares the output device 60 with the directors, he cannot see the q1 and q2 printed matter.

Both directors and directors may be users of the present invention, in which the first verified user is director B and the second verified user is director C. Through such a double verification process, the print job can secure the output device 60 even if unspecified by a large number of people.

What has been described above is only one embodiment for implementing a printing security system and method according to the present invention, and the present invention is not limited to the above-described embodiment, but deviates from the gist of the present invention as claimed in the following claims. Without this, any person having ordinary knowledge in the field of the present invention will be able to implement various changes.

 As described above, according to the printing security system and method according to the present invention, all created documents are managed according to the security level, and security management can be performed by both a computer instructing printing and an output device on which printing is performed. Make security more efficient.

Claims (5)

A printing security system comprising a computer and an output device connected to the computer without a network, The computer, A security level setter for setting a security level and an authentication password corresponding to the security level to a created document and requesting input of an authentication password set in the indicated document for a print instruction on the computer, wherein the input authentication password is set In the case of an authentication password, a security transmitter for transmitting the indicated document, the security level, and the set authentication password to the output device, The output device, A memory for storing the transmitted document, security level and authentication password and requesting input of the stored authentication password for a print instruction on the output device, When the user inputs an authentication password at the output device and the authentication password input by the user at the output device is an authentication password stored in the memory of the output device, the documents corresponding to the authentication password and displayed in the memory are displayed and displayed. A printing security system, characterized in that for outputting a document selected by the user from the document. A printing security system comprising a computer and an output device connected to the computer without a network, A storage unit for storing document data; An authentication password setting unit for setting an authentication password in the stored document data; A judging unit for judging whether the input authentication password matches the set authentication password if an authentication password is input from a user; And The computer includes an output unit which transmits the stored document data and the authentication password set in the document data to the output device when determining that the discriminating unit matches, The output device includes a memory for storing document data received from the computer and an authentication password set in the document data, and for requesting input of the stored authentication password for a print instruction on the output device. When the user inputs an authentication password at the output device, and the authentication password input by the user at the output device is an authentication password stored in the memory of the output device, the document data corresponding to the authentication password and displayed in the memory are displayed. A print security system, characterized in that for outputting document data selected by the user from the displayed document data. In the printing security method through a system consisting of an output device for outputting data transmitted from the computer without a computer and a network, (A) setting a security level on the created document data, and setting an authentication password corresponding to the security level on the document data when the security level is a confidential security level; (B) requesting to print the document data through the computer and checking the security level set for the document data; (C) If the checked security level is a confidential security level and the computer determines that the authentication password input by the user and the set authentication password match, the document data, security level and authentication password are transmitted to the output device. Transmitting the document data and the security level to the output device when the checked security level is a security level that does not require a secret; And (D) outputting the transmitted document data in the output device, and outputting the document data if the security level of the transmitted document data is a security level that does not require a secret, and the security level of the transmitted document data Storing the document data in a memory provided in the output device when the security level requires the secret; (E) When a user inputs an authentication password at the output device and the authentication password input by the user at the output device is an authentication password stored in the memory of the output device, the documents corresponding to the authentication password and stored in the memory are stored. A printing security method, characterized in that for displaying and outputting a document selected by the user from among the displayed documents. delete (A) storing the document data in the output device; (B) setting an authentication password on the document data stored in the output device; And (C) If an authentication password is input from the user in the output device, and if the input authentication password and the set authentication password match, the authentication password corresponds to the authentication password and displays document data stored in the output device and is displayed. And printing the document data selected by the user.

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