KR101233461B1 - Security System and Method in the Computer - Google Patents

Abstract

The present invention relates to a security system of a computer and a method of controlling the same, which can perform an initial operation of a computer without a physical operation of a user, and also enable security of the system. The present invention uses a smart key. The present invention is characterized in that the initial preparation operation of the system is automatically performed when the smart key authenticated from the system is within a certain distance, and to control the system to protect the system from others when the smart key authenticated from the system is out of the predetermined distance. .

Computer, smart key, security

Description

Security system and control method of computer

1 is a remote control configuration diagram of a computer according to the prior art,

2 is a control flowchart for securing a computer according to the prior art;

3 is an overall schematic diagram of a computer security system according to the present invention;

4 is a control block diagram of a computer security system according to the present invention;

5 is a control flowchart of a computer security system according to the present invention.

Explanation of symbols on the main parts of the drawings

1: Timer 3: Sensitivity switch

5: transmitter 7,17: smart key on / off switch

9: portable transmitter 11: receiver

13: EEPROM 15: Embedded Controller

21: system power control unit 23: BIOS

25: screen saver control unit 33: computing device

The present invention relates to a computer security system and a control method thereof, and more particularly, to a system for controlling security of a computer using a smart key and a control method thereof.

Computer power on / off is implemented in various ways. One of the most commonly used ones is remote control. In a computer's power management configuration, there is a system power-on function using a specific button, such as a power button, while a wake-up on modem ring that sends a signal through an external modem to perform the system's wakeup function. There is a wake-on lan on wakelip-link function that sends a signal over a network-connected LAN to execute a system wake-up function.

The wake-up on modem ringing function and the wake-on LAN on wake-up link function enable the on / off control of the power of the computer remotely from the outside via a modem or a LAN. These functions use a communication device that is currently widely used to power on the remote computer before leaving work to boot the operating system (O / S), and pre-register any task registered in a program or the like. Do it.

That is, in the conventional computer, as shown in FIG. 1, it is possible to remotely control a computer or a notebook computer composed of the display apparatus 210 and the main body 230 using the communication device 200 to turn on the power. . At this time, the main body 230 of the computer is configured with a modem 220 configured to receive the communication signal of the communication device 200.

The conventional computer configured as described above is configured to turn on the power of the computer without the user's confirmation. Therefore, since anyone could turn on the power of the computer, a problem arises that the security of the computer cannot be achieved.

Implemented for this security problem, as shown in Fig. 2, the password verification operation is performed when the power state of the computer system is restored from the standby state to the normal state.

Referring to FIG. 2, it is determined whether data has not been input for a predetermined time in step 300. If data is not input for a predetermined time as a result of the determination, the flow proceeds to step 303 to perform a screen protection function supported by the OS program.

In step 306, it is determined whether data has not been input for a predetermined time. If the data is not input for a predetermined time, the control proceeds to step 309 to switch the power state of the computer system to the standby state. do.

When data is input for a predetermined time as a result of the determination in step 306 or data is input for a predetermined time as a result of the determination in step 312 performed after step 309, a password verification operation for user verification is performed.

That is, in step 315, a message for inputting a password is displayed, and when the user inputs a password in step 318, it is checked whether the input password is the same as the preset password (step 321).

After the password verification operation in step 321, if the two passwords match, in step 324 it returns to the normal state of the system. When performing the above operation, if the two passwords do not match in step 321, the system does not return to the normal state, thereby preventing another user from using the system illegally.

That is, in the related art, as shown in FIG. 1, a remote control of a computer is performed, and as shown in FIG. 2, system security is restricted by restricting a system user according to a password confirmation.

However, conventional computers do not have both remote control and system security. In other words, when waking up from the system standby state, the user must enter the password directly through the keyboard for the encryptor. In this regard, it can be said that complete remote control is impossible.

Accordingly, an object of the present invention is to provide a security system of a computer and a method of controlling the same, in which an operation of the system can be automatically performed when an authorized user enters a predetermined radius where a system is located without physical operation.

A security system of a computer according to the present invention for achieving the above object comprises: a portable transmission means for transmitting a smart key wireless signal when located within a sensitivity distance from the computer main body; Security means provided in the computer main body, for receiving a signal transmitted from the portable transmission means and comparing the received signal with a preset value to determine whether the user is an authenticated user; Power supply control means for controlling a system power supply based on an output value of the security means; And computing means for controlling system operation based on the output value of the security means.

The portable transmission means of the present invention comprises a switch for selecting whether or not the smart key operation.

The security device of the present invention is configured to include a switch for selecting whether the smart key operation.

The present invention is characterized in that the screen saver for screen protection is operated under the control of the computing means based on the output value of the security means.

In addition, a control method of a computer security system according to the present invention includes a receiving step of receiving a smart key radio signal transmitted from a portable transmission means when located within a sensitivity distance from a computer main body; An authentication confirmation step of determining whether the user is an authenticated user by comparing the received signal with a preset value; A first operation step of operating the system when the user is an authenticated user in the authentication confirmation step; A first determining step of determining a state of a current system when the smart key radio signal is not received; The first determination step includes a second operation step of entering the power standby state with screen protection when the current system is in the operating state and ending the current system in the power off state.

The authentication checking step of the present invention includes comparing the received signal with a preset value to determine whether the user is an authenticated user, and determining a state of a current system.

The first operating step includes waking up the system when the current system is a standby and authenticated user, and operating the system when the current system is a power off and authenticated user. .

The present invention further includes determining whether the smart key on / off switch is in an operating state, and when the smart key on / off switch is in an operating state, computer security control by a smart key is performed.

Hereinafter, a security system of a computer and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic configuration diagram of a security system of a computer according to the present invention. In the illustrated embodiment, the case of a notebook computer will be described as an example.

Within a certain radius of the place where the notebook computer 50 is located, when a smart key holder matching the smart key installed in the notebook computer 50 enters, the notebook computer 50 may perform initial operation of the system after user confirmation. It will be controlled automatically. For example, when the notebook computer 50 is powered on, it is also possible to boot up the operating system (O / S) and perform any task registered in a program or the like in advance.

That is, the smart key represents an authorized user of the notebook computer 50. The smart key is composed of a unique ID code. Therefore, when the ID code of the smart key set in the notebook computer 50 and the ID of the smart key held by the user match, the use of the notebook computer 50 is permitted. At this time, the user does not need any separate work such as password authentication. Therefore, only the verification operation of the smart key confirms that the user is authenticated.

The smart key is also configured to transmit a signal wirelessly. Therefore, when the smart key is located within a sensitivity distance where the smart key can be detected, the user's authentication is performed by wirelessly transmitting and receiving a signal with the main body 50 without the user's physical operation. Therefore, the smart key does not require a physical operation for authenticating the user.

On the other hand, a user holding a smart key may cause the notebook computer 50 to remain in use and be vacated. At this time, if the user holding the smart key is out of the sensitivity distance that the smart key operates, the system enters the standby state in which the screen saver operates. When the user with the smart key enters the sensitivity range again, the user wakes up the system after performing the user verification.

4 is a control block diagram of a computer security system according to the present invention.

As shown, the present invention is implemented by a portable transmitter 9 and a notebook computer main body 50 which a user has on a part of a body or a bag.

The portable transmitter 9 includes a smart key on / off switch 7 for turning on / off a smart key that automatically controls the operation of the notebook computer body 50, and a sensitivity distance from the notebook computer body 50. A sensitivity switch 3 that operates when the portable transmitter 9 and the notebook computer main body 50 are within the sensitivity distance, and a timer 1 driven as the sensitivity switch 3 operates, As the timer 1 is driven, it is composed of a transmitter 5 for generating and transmitting a unique frequency signal. The smart key on / off switch 7 is a switch for selecting whether or not the portable transmitter 9 is operated.

The notebook computer main body 50 is provided with a security device 19 for receiving the inherent frequency transmitted from the portable transmitter 9 and determining whether to operate the system according to the user confirmation.

The security device 19 includes a smart key on / off switch 17 for determining whether to control the operation of the system by the signal transmitted from the portable transmitter 9 and the portable transmitter 9 transmitted. And a receiving unit 11 for receiving a unique frequency signal (ID code), and an EEPROM 13 for storing data representing an ID code set for each smart key. If there are several authenticated users and each user has a different smart key, the EEPROM 13 stores a plurality of ID cards according to several smart keys.

In addition, the security device 19 determines whether to control the system by the smart key by the smart key on / off switch 17, and reads the received signal of the receiver 11 to the EEPROM (13) It is configured to include an embedded controller 15 to determine whether the same as the ID code stored in the), and to control the operation of the system. The embedded controller 15 is a processor widely used in notebook computers. The embedded controller 15 incorporating the EEPROM may also be implemented according to the use characteristic. That is, the operation of the system is permitted or restricted according to the determination result of the embedded controller 15, and the embedded controller 15 transmits whether to use the license according to the smart key to the computing device 33.

The arithmetic unit 33 is composed of a central processing unit (CPU) 27, a memory control hub (MCH: northbridge: 29), and an input / output control hub (ICH: south bridge: 31), and various types of input / output in the system. The device, memory, and the like are controlled. The computing device 33 controls the operation of the system according to the smart key determination result of the security device 19. That is, the system power control unit 21 controls the entire power supply to the system, and the system boot operation through the ROM BIOS (23). When the smart key is out of the sensitivity distance while the system is in use, the screen saver control unit 25 controls the system to save power and controls the screen of the display device.

The ROM BIOS 23 enables reading and writing through computer writing, preserving information even when the power is cut off, various routines required when the computer is turned on, and programs and data necessary for basic operations each time. It includes a nonvolatile memory for storing. In the nonvolatile memory, a BIOS, which is a program that manages information transfer between peripheral devices such as a memory, a disk, and a monitor, a state of each condition for setting a power management mode, and an optimal power management mode are stored. .

Although not shown, battery power is used to control a series of operations according to the smart key. The battery is charged when the system is in use and used to control a series of operations according to the smart key.

Next will be described in detail with respect to the operation of the computer security system according to the present invention made up of the above configuration.

5 is an operation flowchart for controlling the computer security system according to the present invention.

First, the user must choose whether or not to use a smart key. System operation by the smart key when any one of the smart key on / off switch 17 provided on the main body 50 side and the smart key on / off switch 7 provided on the portable transmitter 9 side is in an off state No control is made. That is, only when both switches 17 and 7 have an on state, system operation control by the smart key is achieved.

When the smart key on / off switch 7 of the portable transmitter 9 is in the on state and the smart key on / off switch 17 provided in the main body 50 is in the on state, the condition of step 100 is Are satisfied.

If the condition of step 100 is satisfied, the sensitivity distance is sensed. At this time, the sensitivity switch 3 is set by the user to adjust the sensitivity distance operating the smart key. Therefore, when the user with the portable transmitter 9 enters within the sensitivity distance from the main body 50, the sensitivity switch 3 is operated (step 103, step 106).

When the sensitivity switch 3 is operated, the timer 1 is operated and a signal according to the unique ID code is transmitted through the transmitter 5. The receiving unit 11 inside the security device 19 receives the signal transmitted from the transmitting unit 5 and transmits it to the embedded controller 15.

The embedded controller 15 decodes the received signal and compares it with an ID code stored in the EEPROM 13 to determine whether the two signals match. When the two signals match, the embedded controller 15 determines that the authorized user is authorized to use (step 109).

When the user is authenticated in step 109, the current operating state of the system is checked (step 112). If the system is in the power-off state, power is supplied to the system under the control of the system power controller 21, and the ROM BIOS 23 is operated to perform a system booting operation (steps 115 and 118).

In the case where the current system operation state is in the standby state in step 112, if the authorized user in step 109 is the same as the user before the system enters the standby state (step 121), and when the two users are the same Wake up the system (step 124). The authenticated user is then free to use the computer.

If the user authorized in step 109 and the user before the standby state are different in step 121, a process of rebooting the system is performed to secure the document in operation (step 118).

On the other hand, when the user deviates from the sensitivity distance limited to the predetermined distance from the computer main body 50 in step 106, the sensitivity switch 3 is switched to the off state. At this time, the portable transmitter 9 cannot transmit a unique signal according to the smart key.

At this time, the receiving unit 11 in the security device 19 cannot receive a signal transmitted from the smart key authorized to be authenticated, and the embedded controller 15 determines that the user is out of a certain distance from the system. At this time, the state of the system is checked (step 133). If the system is currently powered off, no further action is required for future system security. However, if the state of the system was in operation, it is necessary to protect the operation of the current system from others.

Therefore, the computing device 33 operates the screen saver control unit 25. At this time, it is also possible to control the state of the system to the power saving mode state through the rombios 23 (step 136).

If the user is again positioned within the sensitivity distance of the system 50, the system automatically wakes up from the standby state (step 124).

On the other hand, in the case where the control by the smart key is not performed in the 100th step, the system is controlled in a general operation according to the user directly selecting a key (button) (steps 127 and 130).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

The computer security system and control method thereof according to the present invention described above can obtain the following effects.

First, since the initial operation of the computer is automatically performed even if the user does not directly control the power of the computer, the preparation time according to the initial booting time is not required separately.

Secondly, the present invention has an effect of protecting a system by restricting a computer user without a user performing a separate authentication operation for protecting the system.

Claims (7)

A portable transmission means comprising a switch for selecting whether to operate a smart key wireless signal to transmit a smart key radio signal when it is located within a sensitivity distance from a computer main body; Security means including a switch for selecting whether to operate the smart key, which is provided in the computer main body, receiving the signal transmitted from the portable transmission means, and comparing the received signal with a predetermined value to determine whether the user is an authenticated user; ; Power supply control means for controlling a system power supply based on an output value of the security means; And computing means for controlling system operation based on an output value of the security means. delete delete The method of claim 1, And a screen saver for screen protection under the control of the computing means based on the output value of the security means. A receiving step of receiving a smart key radio signal transmitted from the portable transmission means when located within a sensitivity distance from the computer main body; An authentication confirmation step of determining whether the user is an authenticated user by comparing the smart key radio signal with a preset value; A first operation step of operating the system when the user is an authenticated user in the authentication confirmation step; A first determining step of determining a state of a current system when the smart key radio signal is not received; And in the first determination step, entering a power standby state with screen protection when the current system is in an operating state, and terminating when the current system is in a power off state. 6. The method of claim 5, The authentication confirmation step includes comparing the received signal with a predetermined value to determine whether the user is an authenticated user, and determining a state of a current system. The first operating step includes waking up the system when the current system is a standby and authenticated user, and operating the system when the current system is a power off and authenticated user. Control method of a computer security system. 6. The method of claim 5, Determining whether the smart key on / off switch is in operation; And controlling the computer security by the smart key when the smart key on / off switch is in an operating state.

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