KR20090127676A - System and method for protecting of computer by use of bluetooth - Google Patents

Abstract

PURPOSE: A PC security system using Bluetooth communication and a security method using the same are provided to automatically cut off an external communication/switch of an I/O(Input/Output) device by detecting Bluetooth communication secession of a portable terminal during absence of a user. CONSTITUTION: An authenticator(200) is connected to a PC(100) and stores an ID code of a portable terminal(300). The authenticator cuts off/releases I/O communication or switch operation of the PC by authenticating the ID code of the portable terminal connected through Bluetooth communication. The portable terminal transmits a terminal authentication code needed for authentication by receiving an authentication request from the authenticator.

Description

Security system of personal computer using Bluetooth communication and security method by the system {SYSTEM AND METHOD FOR PROTECTING OF COMPUTER BY USE OF BLUETOOTH}

The present invention relates to a security system and a security method of a personal computer, and more particularly, to a personal computer using Bluetooth communication for protecting input and output communication of a personal computer in the absence of a personal computer user using a portable terminal capable of Bluetooth communication. A security system of a computer and a security method by the system.

Personal Computers (or PCs for short) are low-cost, small computers that are assigned and used for work as personal property in a home or office, or as a personal computer in an office.

In general, a personal computer is a computer developed exclusively for personal use or exclusive use, and can be shared and used according to a user's choice. A microprocessor is used for the central processing unit (CPU) and includes a display device, an input / output keyboard and an input / output interface, and an auxiliary storage device and other peripheral devices are added as necessary.

In this case, personal computers may be exposed to each other's personal information when the user is in public or when he or she is away, or when he or she is in a public office or a place where several people work in the same space. There is a risk of external leakage of data that requires security in business.

On the other hand, with the recent development of mobile terminals and the expansion of mobile communication networks, the use of portable terminals has rapidly increased, and many people possess them.

In addition, due to repeated technology development of portable terminals, portable terminals including various functions have been released. In particular, portable terminals capable of Bluetooth communication, which is a short-range wireless communication standard, have been developed.

Bluetooth is a standard that enables real-time communication in both directions by wirelessly connecting a computer, a mobile terminal, and a home appliance that is located within a few meters within a few meters. Recently, a short range wireless communication is used for various purposes. For example, the intercom, a cordless telephone, a telephone having a combined function of a mobile phone, and the like. In addition, it is possible to connect the Internet via a laptop computer and a mobile phone and exchange data between laptops / mobile phones using Bluetooth.For this, a PCMCIA card or a USB dongle type product or a newly launched notebook may be embedded in the main body. do.

Therefore, in the future, it is necessary to develop a security system in which the use of the personal computer is not allowed except for the authorized user of the personal computer by applying the Bluetooth communication function of the mobile phone possessed by the general public.

The present invention for solving the above problems is to enable the security settings for the input / output external communication and switch operation of the personal computer used for personal use or the data that requires security by the authentication of the Bluetooth communication portable terminal Bluetooth It is an object of the present invention to provide a security system of a personal computer using communication and a security method by the system.

Security system of a personal computer using the Bluetooth communication of the present invention for achieving the above object is connected to the personal computer, the personal computer, and stores the identification code of the portable terminal in advance, the code authentication of the portable terminal connected to the Bluetooth communication An authentication device for controlling to block / unblock input / output communication or switch operation of the personal computer, and a portable communication device connected with the authentication device via a Bluetooth communication and receiving an authentication request from the authentication device and transmitting a terminal authentication code necessary for authentication It provides a security system of a personal computer using Bluetooth communication including a terminal.

According to a preferred feature of the invention, the authentication device is a Bluetooth communication unit for requesting the terminal authentication code by the Bluetooth communication with the portable terminal, and receives the requested terminal authentication code, and a portable terminal capable of Bluetooth communication by Bluetooth communication A device searching unit for automatically searching, an authentication program unit for receiving a terminal authentication code from the portable terminal retrieved from the device searching unit and authenticating the portable terminal by comparing with a previously stored identification code, and the device interlocking program to the personal computer. Blocks all external communication and power / reboot switch operation except communication with the authentication device of the input / output port provided in the personal computer according to the deviation of the Bluetooth communication distance of the authenticated portable terminal from the authentication program unit in the activated state Control to control / unblock And a computer control unit and an input / output terminal including a USB interface for input / output communication with the personal computer.

According to a more preferred feature of the invention, the terminal authentication code further comprises a personal unique code, personal ID, personal password.

According to an even more preferable feature of the present invention, the authentication device is the terminal authentication to perform the input / output communication and the switch operation blocking of the personal computer by the portable terminal that stores the terminal authentication code matched with the identification code by the authentication The identification code matching the code is stored in advance.

Security method according to the security system of a personal computer using the Bluetooth communication of the present invention for achieving the above object is a personal computer, an authentication device connected to the personal computer to control the input / output, and the Bluetooth communication connection to the authentication device In the personal computer security method by a certified portable terminal, (a) the personal computer controls the authentication device to allow input / output communication and switch operation only for the portable terminal authenticated by the authentication process of the authentication device; Under the security setting to block input / output communication and switch operation of the personal computer, (b) determining whether the authentication device deviates from the Bluetooth communication distance of the authenticated portable terminal, and (c) When detecting the departure of the authenticated portable terminal from the authentication device, the personal com Under the control of the authentication device, blocking all input / output communication and switch operations except for communication with the authentication device, and (d) after step (c), the authentication device performs Bluetooth communication of the authenticated portable terminal. Determining whether there is an access within a distance and transmitting a terminal authentication code necessary for authentication when the Bluetooth communication with the authenticated portable terminal is detected, and (e) transmitting the terminal authentication code received by the portable terminal; (f) the authentication device determining whether or not matching is performed by comparing a terminal authentication code received from the portable terminal with a previously stored identification code; and (g) if the personal computer performs code matching from the authentication device, Receiving the request for the release of the authentication device, Bluetooth comprising the steps of blocking the blocked input / output communication and switch operation Provides a security method by a personal computer security system using communication.

According to a preferred feature of the invention, the step (a) is (a-1) the identification device receives the terminal authentication code from the authenticated portable terminal when the input / output communication and switch operation of the personal computer is blocked, the identification And storing the identification code corresponding to the terminal authentication code in advance to enable input / output communication and switch operation of the personal computer by code and code matching.

According to a more preferred feature of the invention, before the step (c), (c-1) the authentication device is all input / except communication with the authentication device of the personal computer when the Bluetooth communication distance of the authenticated portable terminal deviates It further includes the step of setting the output communication and switching off.

As described above, the security system of the personal computer using the Bluetooth communication of the present invention and the security method by the system is a departure from the Bluetooth communication of the mobile terminal in a situation where the user of the computer for personal use or the computer that requires security data is temporarily absent Detects and automatically blocks external communication and switch operation of I / O devices, and releases the block setting when re-accessing within Bluetooth communication distance, making it easy and convenient for anyone to set security of personal computer. have.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a security system of a personal computer 100 using Bluetooth communication according to an embodiment of the present invention, Figure 2 is a detailed configuration diagram of the security system of FIG.

Referring to Figure 1 and 2 in detail,

As shown in FIG. 1, the security system of the present invention includes a personal computer 100, an authentication device 200, and a portable terminal 300.

The personal computer 100 is a computer used for personal, office, etc., and basically includes a desktop computer, a notebook computer, a laptop computer, a palmtop computer, an ultramobile PC, a pocket PC, a tablet PC, and the like.

The personal computer 100 includes a central processing unit, a memory, a storage device, and a peripheral device. The peripheral device may be classified into an input device 130 and an output device.

In particular, the input device 130 connected to the personal computer 100 may operate a user interface of the personal computer 100 so that data stored in the storage device may be extracted, copied or printed through an output device such as a printing device. It is desirable to restrict use other than authorized users.

That is, the input device 130 is only connected to the authentication device 200 to set the limit of the input device 130 and is authenticated by the authentication of the mobile terminal 300 of the authentication device 200. A device interlocking program interworking with the authentication apparatus 200 is installed to limit use.

The device interlocking program is stored in the device interlocking program unit 110 as shown in FIG. 2, and interlocks with an authentication program installed in the authentication device 200 to block external communication of the input / output port of the personal computer 100. It performs a function of releasing blocking of external communication of the blocked input / output port 120.

In addition, it is preferable that the power / reboot switch controller 140 is connected to perform a power cut / unblock function of the power switch and the reboot switch of the personal computer 100.

Blocking the operation of the power / reboot switch means that when the power of the personal computer 100 is turned off or rebooted, execution programs loaded on the memory are terminated and unsaved data is lost. This is because the device interlocking program is also terminated to allow the use of the input device 130 of the personal computer 100.

Of course, at this time, since the personal computer 100 may be set to be used to automatically execute the device interlocking program at the time of booting, the person skilled in the art can change the implementation as necessary.

The authentication device 200 is connected to the personal computer 100 and is also connected to the Bluetooth wireless communication of the portable terminal 300.

At this time, the input / output terminal 250 is connected to the input / output port 120 of the personal computer 100, the input / output terminal 250 is preferably composed of a USB interface.

Furthermore, since the authentication device 200 is connected to the personal computer 100 and exposed to the outside and exposed to others other than the user, there is a problem that can be disconnected, even if the authentication device 200 is configured in the form of a built-in personal computer 100 It is good, and this can be carried out by those skilled in the art, changing as necessary.

The authentication apparatus 200 allows the portable terminal 300 to permit external communication and switch operation by the input / output port of the personal computer 100 only for the portable terminal 300 authenticated by the authentication of the portable terminal 300. The device authenticates by Bluetooth wireless communication.

Specifically, the authentication device 200, as shown in Figure 2, Bluetooth communication unit 230, device search unit 220, authentication program unit 230, computer control unit 240, input / output terminal 250 Include.

The Bluetooth communication unit 230 is connected to the Bluetooth communication of the portable terminal 300 receives a terminal authentication code required for authentication of the portable terminal 300.

If the device search unit 220 approaches the portable terminal 300 within a blue communication distance, the device search unit 220 automatically searches for the accessed portable terminal 300 to request terminal information of the portable terminal 300 and receives the requested terminal information. The terminal information of the corresponding portable terminal 300 is loaded by matching with previously stored terminal information.

The terminal information may basically include a model name, a device name, a serial number, an authentication number, a manufacturer, a date of manufacture, and the like of the portable terminal 300.

The authentication program unit 230 stores an authentication program for performing the authentication process of the portable terminal 300 to execute the authentication program.

The authentication program stores an identification code necessary for code matching of the portable terminal 300 to be authenticated in advance in order to authenticate only the portable terminal 300 of the user who is allowed to input / output communication and switch operation of the personal computer 100.

The identification code basically includes a personal unique code, a personal ID, and a personal password. The identification code may be additionally stored to enable a plurality of portable terminals 300 to be authenticated. Can be.

The authentication program stored in the identification code is executed in a state in which the authentication device 200 is connected to the input / output port 120 of the personal computer 100, and the executed authentication program is a Bluetooth communication right of the authenticated portable terminal 300. Determining whether there is a departure from the inside, and performs an authentication process for determining the authenticated portable terminal 300 of all the portable terminal 300 in the Bluetooth communication zone.

Therefore, the authenticated portable terminal 300 is a portable terminal in which the identification code is stored in advance, and the use of the personal computer 100 is not permitted for portable terminals other than the authenticated portable terminal 300.

That is, in order to check whether the mobile terminal 300 is authenticated, a terminal authentication code required for authentication is requested from the portable terminals accessed within the Bluetooth communication range. By judging, the portable terminal 300 is authenticated and confirmed.

In other words, the terminal authentication code is preferably information that matches the identification code, basically consisting of a unique code, personal ID, personal password.

The computer controller 240 authenticates the input / output port 120 by interworking with the device interlocking program executed on the secure personal computer 100 when the portable terminal 300 authenticated by the authentication program leaves the Bluetooth communication range. Blocks all external communication except the communication with the device 200, and serves to control the operation of the power / reboot switch by the power / reboot switch control unit 140.

The portable terminal 300 is a portable terminal capable of connecting a mobile phone through a mobile communication network, and basically a CDMA mobile phone, a WCDMA mobile phone, a smart phone, a personal mobile information terminal equipped with a mobile phone function ( PDA) and the like, in which case, these mobile phones preferably include a Bluetooth communication function.

Of course, at this time, in the case of a mobile phone that is not equipped with a Bluetooth communication function, the Bluetooth communication dongle may be externally mounted to communicate with the authentication device 200 via Bluetooth.

As shown in FIG. 2, the portable terminal 300 further includes a Bluetooth communication module 310 and a terminal authentication unit 320.

The Bluetooth communication module 310 is a module for Bluetooth wireless communication with the Bluetooth communication unit 230 of the authentication device 200, and configures a communication protocol conforming to the Bluetooth standard.

The terminal authentication unit 320 further includes an authentication code storage module 321 and a program interlocking module 322, and the authentication code storage module 321 stores the terminal authentication code requested when authenticating from the authentication device 200. The program linkage module 322 configures the program to transmit the requested terminal authentication code to the authentication apparatus 200 when the terminal authentication code is requested in association with the authentication program.

3 is a flowchart illustrating an input / output communication and a switch operation blocking process of the personal computer 100 according to the security method of the security system of the personal computer 100 using Bluetooth communication according to an embodiment of the present invention.

Referring to Figure 3 in detail,

First, the authentication device 200 is connected to the personal computer 100 to determine whether the authentication device 200 is driving (operation) (S300).

That is, the input / output communication and the switch operation of the personal computer 100 may be blocked / unblocked while the authentication apparatus 200 is being driven.

The running authentication device 200 automatically searches for all the Bluetooth-enabled portable terminals 300 in the Bluetooth communication zone, and determines whether the authenticated portable terminal 300 has been departed from the communication zone in advance (S302).

When detecting the deviation of the Bluetooth communication distance of the authenticated portable terminal 300 controls the personal computer 100 connected to the authentication device 200 to operate a security process (S306).

Here, the security process interlocks all external communication except for communication with the authentication device 200 of the input / output port 120 through the device interlocking program by interlocking with the device interlocking program already installed in the personal computer 100, and a power switch. And a process of setting security to block the operation of the reboot switch.

The personal computer 100 in which the security process is operated is not operated by the input of the connected input device 130, and data communication is blocked so that the corresponding operation according to the operation of the power switch and the reboot switch is not performed (S308). .

4 is a flowchart illustrating an input / output communication and a switch releasing process of the personal computer 100 according to the security method of the security system of the personal computer 100 using Bluetooth communication according to an embodiment of the present invention.

Referring to Figure 4 in detail,

In operation S400, it is determined whether the authenticated portable terminal 300 accesses the Bluetooth communication right in the state where the personal computer is blocked by the above-described security process operation.

In order to determine whether the portable terminal 300 accessed within the Bluetooth communication right is the authenticated portable terminal 300, a request for transmitting a terminal authentication code to the portable terminal 300 (S402).

The portable terminal 300 reads out the stored terminal authentication code received from the transmission request and transmits the stored terminal authentication code to the authentication apparatus 200 by Bluetooth communication (S404).

When the authentication device 200 receives the terminal authentication code from the portable terminal 300 requesting the transmission, the authentication apparatus 200 performs an authentication process for comparing with the previously stored identification code (S406). (S408).

If the authentication is determined by the authentication decision, the authentication apparatus 200 controls the personal computer 100 in which the input / output communication and the operation of the switch are blocked to be released (S410).

In this case, if the portable terminal 300 is not authenticated in step S408, the mobile terminal 300 returns to step S402 to rescan the portable terminal 300 entered into the Bluetooth communication zone, and requests the terminal 300 to transmit the terminal authentication code to the rescanned portable terminal 300. Repeat the process.

In the drawing, reference numeral 150, which is not described, becomes a connection terminal for driving the power switch and the reboot switch to the switch unit 150.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

1 is a schematic configuration diagram of a security system of a personal computer using Bluetooth communication according to an embodiment of the present invention.

2 is a detailed configuration diagram of the security system of FIG.

Figure 3 is a flow chart for the input / output communication and switch operation blocking process of the personal computer according to the security method by the security system of the personal computer using Bluetooth communication according to an embodiment of the present invention.

Figure 4 is a flow chart for the input / output communication and the switch blocking release process of the personal computer according to the security method of the security system of the personal computer using Bluetooth communication according to an embodiment of the present invention.

<Description of reference numerals for main parts of the drawings>

100: personal computer 110: device interlocking program unit

120: input / output port 130: input device

140: power / reboot switch control unit 150: switch unit

200: authentication device 210: Bluetooth communication unit

220: device search unit 230: certification program unit

240: computer control unit 250: input / output terminal

300: portable terminal 310: Bluetooth communication module

320: terminal authentication unit 321: authentication code storage module

322: Program linkage module

Claims (7)

Personal computer; An authentication device connected to the personal computer, storing an identification code of the portable terminal in advance, and controlling to block / unblock input / output communication or switch operation of the personal computer by code authentication of the portable terminal connected via Bluetooth; And The authentication device and the Bluetooth communication is connected, the security system of a personal computer using a Bluetooth communication including a portable terminal for receiving an authentication request from the authentication device and transmits a terminal authentication code required for authentication. The method of claim 1, wherein the authentication device A Bluetooth communication unit for requesting the terminal authentication code by Bluetooth communication with the portable terminal and receiving the requested terminal authentication code; A device searching unit for automatically searching for a portable terminal capable of Bluetooth communication by Bluetooth communication; An authentication program unit which receives the terminal authentication code from the portable terminal retrieved from the device searching unit and authenticates the portable terminal by comparing with the previously stored identification code; According to the presence or absence of Bluetooth communication distance of the portable terminal authenticated from the authentication program unit while the device interlocking program is activated in the personal computer, all except communication with the authentication device of the input / output port provided in the personal computer. A computer control unit controlling to block / unblock external communication and power / reboot switch operation; And Security system of a personal computer using Bluetooth communication further comprises an input / output terminal including a USB interface for input / output communication with the personal computer. According to claim 1 or 2, wherein the terminal authentication code is Personal unique code, personal ID, personal password security system using a Bluetooth communication, characterized in that it further comprises a personal password. The apparatus of claim 1 or 2, wherein the authentication device is Characterized in that for storing the identification code corresponding to the terminal authentication code in advance so that the input / output communication and the switch operation release of the personal computer is performed by the portable terminal in which the terminal authentication code matched with the identification code by authentication is performed. Personal computer security system using Bluetooth communication. In the personal computer, an authentication device connected to the personal computer to control the input / output, and a personal computer security method by a Bluetooth terminal connected to the authentication device authenticated, (a) The personal computer blocks the input / output communication and the switch operation of the personal computer under the control of the authentication device such that the input / output communication and the switch operation are allowed only for the portable terminal authenticated by the authentication process of the authentication device. Securing to secure; (b) the authentication device, determining whether the Bluetooth communication distance of the authenticated portable terminal deviates; (c) detecting a departure of the authenticated portable terminal from the authentication device, the personal computer blocking all input / output communication and switch operations except communication with the authentication device under control of the authentication device; (d) after the step (c), the authentication apparatus determines whether access is made within the Bluetooth communication distance of the authenticated portable terminal, and when the Bluetooth communication with the authenticated portable terminal is detected, requesting transmission of a terminal authentication code necessary for authentication. step; (e) the portable terminal transmitting the terminal authentication code received from the transmission request; (f) the authentication device determining whether matching is performed by comparing a terminal authentication code received from the portable terminal with a previously stored identification code; And (g) The personal computer security using a Bluetooth communication comprising the step of releasing the blocked input / output communication and the switch operation in response to the request for the release of the authentication device, if the code is made from the authentication device; Security method by system. The method of claim 5, wherein step (a) (a-1) When the input / output communication and the switch operation of the personal computer are blocked, the authentication device receives the terminal authentication code from the authenticated portable terminal and input / output communication of the personal computer by matching the identification code and the code. And storing the identification code corresponding to the terminal authentication code in advance so that a switch operation can be performed. The method of claim 5, wherein before step (c), (c-1) The authentication device further comprises the step of setting off all input / output communication and switch operation except for communication with the authentication device of the personal computer when the Bluetooth communication distance of the authenticated portable terminal is separated. Security method by the security system of a personal computer using Bluetooth communication.

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