KR101718051B1 - System for controlling encryption key of weapon system and method thereof - Google Patents

System for controlling encryption key of weapon system and method thereof Download PDF

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Publication number
KR101718051B1
KR101718051B1 KR1020150162441A KR20150162441A KR101718051B1 KR 101718051 B1 KR101718051 B1 KR 101718051B1 KR 1020150162441 A KR1020150162441 A KR 1020150162441A KR 20150162441 A KR20150162441 A KR 20150162441A KR 101718051 B1 KR101718051 B1 KR 101718051B1
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KR
South Korea
Prior art keywords
control command
gps receiver
power
encryption key
control
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KR1020150162441A
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Korean (ko)
Inventor
박노현
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엘아이지넥스원 주식회사
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Priority to KR1020150162441A priority Critical patent/KR101718051B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D7/00—Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/01—Arrangements thereon for guidance or control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

According to the present invention, the present invention provides a system for managing an encryption key of a weapon system and a method thereof. According to the present invention, the system for managing an encryption key of a weapon system comprises: a wireless terminal which generates a control command for deleting the encryption key, which is previously stored according to the operation of a user, and wirelessly transmits the generated control command; a flight control device which checks whether to request that the received control command deletes the encryption key when the wirelessly transmitted control command is received so as to transfer the control command according to the checked result; and a GPS receiver which receives the control command and deletes the encryption key.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for managing a cryptographic key of a weapon system,

The present invention relates to a cryptographic key management technology, and more particularly, to a system and method for managing a cryptographic key of a weapon system mounted on an aircraft.

Generally, the weapon system mounted on the aircraft is wired to the interface between the main system, the aircraft, and the weapon system, which is the subsystem, and the cryptographic key is also charged by wire.

Due to the limited environment of wired connection, there are restrictions on security as well as operational scope. In other words, it is possible to delete only the wired connection path because it is possible to control only the main system when deleting the password of the sub system in the emergency.

In addition, a preparation time of a predetermined time is also required when the encryption key is deleted in this manner.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a wireless terminal, And to return a result of deleting the encryption key, and a method for managing the encryption key of the weapon system.

Another object of the present invention is to provide a GPS receiver in which a main power is branched and power is supplied to a GPS receiver in which a cipher key is stored in different paths so that even if the power of the flight control device is cut off by one path, And to provide a system and method for managing a cryptographic key of a weapon system to be supplied.

However, the objects of the present invention are not limited to those mentioned above, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above objects, a system for managing a cryptographic key of a weapon system according to an aspect of the present invention generates control commands for deleting a pre-stored cryptographic key according to a user's operation, A transmitting wireless terminal; A flight control device for receiving the wirelessly transmitted control command and confirming whether the received control command requests cipher key deletion and delivering the control command according to the confirmation result; And a GPS receiver for deleting the cipher key according to the control command received in response to the control command.

Preferably, upon receiving the wirelessly transmitted control command, the flight control device checks whether the received control command requests deletion of the encryption key, and upon requesting deletion of the encryption key as a result of the confirmation, To the GPS receiver.

Preferably, the flight control device comprises: a data transmission / reception unit for transmitting a control message including the control command when receiving a control command from the wireless terminal; An induction control unit for receiving a control message from the data transmission / reception unit, confirming a control command included in the received control message, and transmitting a control message according to a result of the check; An integrated navigation unit for receiving a control message from the induction control unit and transmitting the received control message; And a signal connection unit for receiving a control message from the integrated navigation unit and transmitting the received control message to the GPS receiver.

Further, a system for managing a cryptographic key of a weapon system according to the present invention includes: a power supply device for applying power to each of the flight control device and the GPS receiver; A first power switch for supplying or disconnecting power of the power supply to the flight control device and the GPS receiver; And a second power switch which is disposed in an output path of one of two output paths from the first power switch and supplies or cuts off the power of the power supply to the flight control device and the GPS receiver .

Preferably, when the first switch is turned off, power to both the flight control device and the GPS receiver is shut off.

Preferably, when the second switch is turned off, the power of the flight control device is cut off and part of the power to the GPS receiver is cut off.

According to another aspect of the present invention, there is provided a method for managing a cryptographic key of a weapon system, the method comprising: generating a control command for deleting a pre-stored cryptographic key according to an operation of a user and wirelessly transmitting the generated control command; ; Transmitting the control command according to a result of checking whether the received control command requests removal of an encryption key when the flight control device receives the wirelessly transmitted control command; And deleting the cryptographic key according to the control command received by the GPS receiver after receiving the control command.

Preferably, in the step of transmitting the control command, upon receiving the wirelessly transmitted control command, the control unit confirms whether the received control command requests deletion of the encryption key, and upon requesting deletion of the encryption key, To the GPS receiver.

Advantageously, said delivering comprises:

Transmitting a control message including the control command when the data transmission / reception unit receives a control command from the wireless terminal, the flight control apparatus comprising a data transmission / reception unit, an induction control unit, an integrated navigation unit, and a signal connection unit; Receiving the control message from the data transmitting and receiving unit, confirming the control command included in the received control message, and transmitting the control message according to the confirmation result; Receiving the control message from the induction control unit and transmitting the received control message; And receiving the control message from the integrated navigation unit and transmitting the received control message to the GPS receiver.

According to another aspect of the present invention, there is provided a method of managing a cryptographic key of a weapon system, the method comprising: powering a power supply to each of the flight control device and the GPS receiver; The first power switch supplying or blocking the power supply of the power supply to the flight control device and the GPS receiver; And a second power switch is disposed in one of the two output paths from the first power switch to supply or block the power of the power supply to the flight control device and the GPS receiver .

Preferably, when the first switch is turned off, power to both the flight control device and the GPS receiver is shut off.

Preferably, when the second switch is turned off, the power of the flight control device is cut off and part of the power to the GPS receiver is cut off.

Accordingly, when the control command for deleting the encryption key of the weapon system is transmitted through the wireless terminal, the encryption key is deleted according to the control command received from the GPS receiver, and the result of deleting the encryption key is returned Thereby, it is possible to flexibly delete the encryption key from the outside.

In addition, since the present invention does not require the use of an auxiliary battery because the power supply is branched, the change can be minimized when a certain system is applied, and the stability of the operation of the system can be improved There is an effect.

1 illustrates a system for managing a cryptographic key of a weapon system according to an embodiment of the present invention.
2 is a view for explaining the principle of branching and operating the main power source according to the present invention.
3 is a view showing a detailed configuration of the flight control device shown in FIG.
4A to 4D are diagrams illustrating a message format used in the flight control apparatus.
5 is a diagram showing a detailed configuration of the wireless terminal shown in FIG.
6 is a diagram illustrating a method for managing a cryptographic key of a weapon system according to an embodiment of the present invention.

Hereinafter, a system and method for managing a cryptographic key of a weapon system according to an embodiment of the present invention will be described with reference to the accompanying drawings. The present invention will be described in detail with reference to the portions necessary for understanding the operation and operation according to the present invention.

In describing the constituent elements of the present invention, the same reference numerals may be given to constituent elements having the same name, and the same reference numerals may be given thereto even though they are different from each other. However, even in such a case, it does not mean that the corresponding component has different functions according to the embodiment, or does not mean that the different components have the same function. It should be judged based on the description of each component in the example.

Particularly, in the present invention, when a control command for deleting a cryptographic key of a weapon system is transmitted through a wireless terminal, a pre-stored cryptographic key is deleted according to a control command received from a GPS receiver, and a result of deleting the cryptographic key is returned We propose a new scheme.

In addition, according to the present invention, power is applied to a GPS receiver in which a main power is branched and a cipher key is stored in different paths, so that even if the power of the flight control device is cut off by one path, a certain power is supplied through another path do.

1 illustrates a system for managing a cryptographic key of a weapon system according to an embodiment of the present invention.

1, a system for managing a cryptographic key of a weapon system according to the present invention includes a power supply unit 110, a first switch 120, a second switch 122, a flight control unit 130, A GPS receiver 140, a cryptographic unit 150, and a wireless terminal 160.

The power supply 110 may supply power to devices such as flight control devices, GPS receivers, etc. in the aircraft.

The first power switch 120 may be serially connected to the power supply 110 and may be turned on or off to apply or cut off power to the flight control device and the GPS receiver according to the user's operation.

The second power switch 122 is connected to one of the two paths connected in parallel to the output of the first switch in series with the first switch according to the user's operation so as to supply power to the flight control device and the GPS receiver And may be turned on or off to apply or block the signal.

2 is a view for explaining the principle of branching and operating the main power source according to the present invention.

Referring to FIG. 2, a first power switch is disposed on a first path (1) for transmitting or cutting off power supplied from a power supply, and a second power switch is disposed on a second path (2) .

For example, power from the power supply can be applied to the GPS receiver through the first path (1) and to both the flight control device and the GPS receiver via the second path (2).

When the first switch is turned off, both the power supplied to the flight control device and the GPS receiver are cut off. That is, when the first switch is turned off, the power supplied to the GPS receiver is cut off, so that the cipher key stored in the GPS receiver can also be deleted.

When the first switch is ON and the second switch is OFF, the power applied to the flight control device and the GPS receiver is shut off, a predetermined power is applied to the GPS receiver through the first path, maintain. Here, the predetermined power source means a magnitude enough to hold only the storage state of the encryption key by the GPS receiver.

When the first power switch 120 or the second power switch 122 is turned off, the flight control device 130 may be powered off from the power supply device 110.

When the control command is received from the wireless terminal, the flight control device 130 may request the GPS receiver to delete the encryption key by transmitting the control command to the GPS receiver.

The flight control device 130 may be provided with a result message including a result of providing a control command to the GPS receiver and then deleting the encryption key from the GPS receiver in response thereto. The flight control device 130 may then provide the result message to the wireless terminal.

If the flight control device 130 does not receive the result message for a predetermined time after providing the control command to the GPS receiver, the flight control device 130 may transmit the control command to the GPS receiver again.

When the first power switch 120 is turned off, the power supply can be cut off. When only the second power switch 122 is turned off, the GPS receiver 140 is powered by the power supply 110, A predetermined power can be supplied from the supplying device.

When receiving the control command from the flight control device 130, the GPS receiver 140 may delete the pre-stored encryption key according to the received control command, and provide the deletion result.

The encryption device 150 may be connected to the flight control device 130 to charge the encryption key. At this time, the cryptographic device 150 and the flight control device 130 may be connected by an extendable cable.

The wireless terminal 160 may generate a control command for deleting the encryption key stored in the GPS receiver according to the user's operation and transmit the generated control command to the flight control device 130. [

The wireless terminal 160 may receive the result message including the deletion result of the encryption key in the GPS receiver according to the control command and display the deletion result of the encryption key on the screen.

The wireless terminal 160 may include a smart phone, a tablet, a notebook, and a PDA (Personal Digital Assistant).

At this time, the wireless terminal 160 may transmit the control command to the flight control device 130 in the wireless communication standard of, for example, Binary CDMA, 2.4 GHz band, or the like.

FIG. 3 is a view showing a detailed configuration of the flight control apparatus shown in FIG. 1, and FIGS. 4a to 4d are diagrams showing a message format used in the flight control apparatus.

3, the flight control apparatus 130 includes a data transmission circuit (DTC) 131, a guidance control circuit (GCC) 132, an integrated navigation unit (INC) 133, and an interface circuit (IFC) 134. In addition,

A process of receiving and processing a control command from the wireless terminal in a forward direction will be described.

Upon receiving the control command from the wireless terminal, the data transmission / reception unit 131 may transmit the received control command to the induction control unit 132. [ At this time, the data transmission / reception unit 131 transmits the control command to the induction control unit 132 using synchronous wired communication, for example, SDLC RS-422 communication.

Referring to FIG. 4A, the data transmission / reception unit 131 generates a control message including a control command, and may change the value of a data field in the control message according to a control command.

For example, 0xOFF indicates a control command and Ox000 indicates a control command.

Here, a start flag field indicates a value for informing the start time of communication, an address field indicates an address value corresponding to message transmission / reception, and a message ID field indicates a value corresponding to each message ID, i.e., identification information, a length field indicates a size of the data field in byte units, a status field indicates a reception state, a data field indicates transmission data, and a CRC field indicates an address Field indicates whether or not an error has occurred in the bit or byte unit of the data area, and an end flag field indicates a value for notifying the end of communication.

The induction control unit 132 receives the control message from the data transmission / reception unit 131, confirms the control command included in the received control message, and transmits the control message to the integrated navigation unit 133 according to the confirmation result.

Referring to FIG. 4B, if the control command included in the control message has a value corresponding to the control command, the induction control unit 132 transmits the control message to the integrated navigation unit 133. FIG.

The integrated navigation unit 133 may receive the control message including the control command applied value from the induction control unit 132 and may transmit the received control message to the signal connection unit 134. [

The signal connection unit 134 may receive the control message including the control command authorization value from the integrated navigation unit 133 and may transmit the received control message to the GPS receiver 140. [

A process of receiving and processing the execution result from the GPS receiver in the reverse direction will be described.

The signal connection unit 134 may receive the result message from the GPS receiver and may forward the received result message to the integrated navigation unit 133. [

The integrated navigation unit 133 may receive the result message including the result of deleting the encryption key from the signal connection unit 134 and may transmit the received result message to the induction control unit 132. [

Referring to FIG. 4C, the unified navigation unit 133 may change the value of the data field in the result message. For example, 0x00 indicates normal completion of cryptographic key deletion, and 0x01 indicates failure of cryptographic key deletion And 0x10 indicates that the command for deleting the encryption key is unrecognizable.

The induction control unit 132 receives the result message from the integrated navigation unit 133, confirms the deletion result included in the received result message, and transmits the result message to the data transmission / reception unit 131 according to the confirmation result.

Referring to FIG. 4D, the induction control unit 132 can change the mission information return value of the data field in the result message. For example, 07 indicates that the command for deleting the cryptographic key is invalid, And 09 indicates the normal completion of deleting the encryption key.

5 is a diagram showing a detailed configuration of the wireless terminal shown in FIG.

5, the wireless terminal 140 according to the present invention may include a wireless communication unit 141, an input unit 142, a control unit 143, a display unit 144, and a storage unit 145 have.

The wireless communication unit 141 can transmit and receive various information in cooperation with the flight control apparatus through wireless communication. For example, the wireless communication unit 141 may transmit a control command for deleting the encryption key to the flight control apparatus, and receive the deletion result from the flight control apparatus.

The input unit 142 can receive information according to the user's menu or key operation.

The control unit 143 generates a control command for deleting the encryption key according to the user's operation and controls the control unit 143 to transmit the generated control command to the flight control unit via the wireless communication unit 141, It is possible to control the display unit 144 to display the extracted result of the encryption key deletion.

The display unit 144 can display whether or not the control command is transmitted and the execution result of the control command.

The storage unit 145 may store a control command, a result message, and the like related to deleting the encryption key.

6 is a diagram illustrating a method for managing a cryptographic key of a weapon system according to an embodiment of the present invention.

6, a system for managing a cryptographic key of a weapon system according to the present invention (hereinafter referred to as a cryptographic key management system) is a system in which a wireless terminal transmits a control command for deleting a cryptographic key, To the flight control device (S601).

Next, when the control command is received from the wireless terminal, the flight control device confirms whether the received control command requests the cipher key deletion (S602), and transmits the control command to the GPS receiver if the cipher key deletion request is a result of the confirmation (S603).

Next, the GPS receiver, upon receiving the control command from the flight control device, can delete the pre-stored encryption key according to the received control command (S604).

Next, in step S605, the GPS receiver generates a result message for informing whether the encryption key is deleted when the encryption key deletion is completed (S605), and transmits the generated result message to the flight control device (S606).

When the result message is received from the GPS receiver, the flight control device checks whether the received result message has completed the cipher key deletion (S607). If the cipher key deletion is completed as a result of the check, the resultant message is transmitted to the wireless terminal (S608).

Next, upon receiving the result message from the flight control device, the wireless terminal may display whether the encryption key is deleted based on the received result message on the screen (S609).

It is to be understood that the present invention is not limited to these embodiments, and all of the elements constituting the embodiments of the present invention described above are described as being combined or operated together. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. In addition, although all of the components may be implemented as one independent hardware, some or all of the components may be selectively combined to perform a part or all of the functions in one or a plurality of hardware. As shown in FIG. In addition, such a computer program may be stored in a computer-readable medium such as a USB memory, a CD disk, a flash memory, etc., and read and executed by a computer, thereby implementing embodiments of the present invention. As the storage medium of the computer program, a magnetic recording medium, an optical recording medium, a carrier wave medium, or the like may be included.

While the invention has been shown and described with reference to certain embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

110: Power supply
120: first power switch
122: second power switch
130: Flight control device
140: GPS receiver
150: Entering the password
160: Wireless terminal

Claims (12)

A wireless terminal for generating a control command for deleting a pre-stored encryption key according to an operation of a user and wirelessly transmitting the generated control command;
A flight control device for receiving the wirelessly transmitted control command and confirming whether the received control command requests cipher key deletion and delivering the control command according to the confirmation result; And
A GPS receiver for receiving the control command and deleting the encryption key according to the received control command;
A system for managing a cryptographic key of a weapon system. The method according to claim 1,
Wherein the flight control device comprises:
Upon receiving the wirelessly transmitted control command, it checks whether the received control command requests deletion of the encryption key
And transmits the control command to the GPS receiver upon requesting deletion of the encryption key as a result of the checking. The method according to claim 1,
Wherein the flight control device comprises:
A data transmission / reception unit for transmitting a control message including the control command upon receiving a control command from the wireless terminal;
An induction control unit for receiving a control message from the data transmission / reception unit, confirming a control command included in the received control message, and transmitting a control message according to a result of the check;
An integrated navigation unit for receiving a control message from the induction control unit and transmitting the received control message; And
A signal connection unit for receiving a control message from the integrated navigation unit and transmitting the received control message to the GPS receiver;
The system comprising: means for generating an encryption key for the weapon system; The method according to claim 1,
A power supply for applying power to each of the flight control device and the GPS receiver;
A first power switch for supplying or disconnecting power of the power supply to the flight control device and the GPS receiver; And
A second power switch disposed in an output path of one of the two output paths from the first power switch for supplying or blocking power of the power supply to the flight control device and the GPS receiver;
The system comprising: means for generating an encryption key for the weapon system; 5. The method of claim 4,
Wherein when the first switch is turned off, power to both the flight control device and the GPS receiver is cut off. 6. The method of claim 5,
Wherein when the second switch is turned off, the power of the flight control device is cut off and some power to the GPS receiver is cut off. Generating a control command for deleting a pre-stored encryption key according to an operation of a user and wirelessly transmitting the generated control command;
Transmitting the control command according to a result of checking whether the received control command requests removal of an encryption key when the flight control device receives the wirelessly transmitted control command; And
The GPS receiver receiving the control command and deleting the cipher key according to the received control command;
The method comprising the steps of: 8. The method of claim 7,
The method of claim 1,
Upon receiving the wirelessly transmitted control command, it checks whether the received control command requests deletion of the encryption key
And transmitting the control command to the GPS receiver when the control unit requests deletion of the encryption key as a result of the checking. 8. The method of claim 7,
The method of claim 1,
Wherein the flight control device comprises a data transmission / reception unit, an induction control unit, an integrated navigation unit, and a signal connection unit,
Transmitting a control message including the control command when the data transmission / reception unit receives a control command from the wireless terminal;
Receiving the control message from the data transmitting and receiving unit, confirming the control command included in the received control message, and transmitting the control message according to the confirmation result;
Receiving the control message from the induction control unit and transmitting the received control message; And
Receiving the control message from the integrated navigation unit and transmitting the received control message to the GPS receiver;
The method comprising the steps of: 8. The method of claim 7,
The power supply applying power to each of the flight control device and the GPS receiver;
The first power switch supplying or blocking the power supply of the power supply to the flight control device and the GPS receiver; And
The second power switch being disposed in one of the two output paths from the first power switch to supply or block power to the flight control device and the GPS receiver;
The method comprising the steps of: 11. The method of claim 10,
Wherein when the first switch is turned off, power to both the flight control device and the GPS receiver is turned off. 12. The method of claim 11,
Wherein when the second switch is turned off, the power of the flight control device is cut off and some power to the GPS receiver is cut off.
KR1020150162441A 2015-11-19 2015-11-19 System for controlling encryption key of weapon system and method thereof KR101718051B1 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR102361169B1 (en) * 2020-10-27 2022-02-14 엘아이지넥스원 주식회사 Guided missile storage device

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JP2005061820A (en) * 2003-08-08 2005-03-10 Lockheed Martin Corp Positioning system data integrator using satellite and distribution system
KR20120023341A (en) * 2010-09-03 2012-03-13 홍익대학교 산학협력단 From tactical communication the data reference system which leads a priority readjustment and the use method
KR20150043621A (en) * 2013-10-14 2015-04-23 주식회사 그로스 Free wifi system and method using affiliate information disposure

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Publication number Priority date Publication date Assignee Title
JP2005061820A (en) * 2003-08-08 2005-03-10 Lockheed Martin Corp Positioning system data integrator using satellite and distribution system
KR20120023341A (en) * 2010-09-03 2012-03-13 홍익대학교 산학협력단 From tactical communication the data reference system which leads a priority readjustment and the use method
KR20150043621A (en) * 2013-10-14 2015-04-23 주식회사 그로스 Free wifi system and method using affiliate information disposure
KR101538363B1 (en) * 2013-10-14 2015-07-23 주식회사 그로스 Free wifi system and method using affiliate information disposure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102361169B1 (en) * 2020-10-27 2022-02-14 엘아이지넥스원 주식회사 Guided missile storage device

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