KR101736789B1 - Apparatus and method for managing data of black box - Google Patents

Apparatus and method for managing data of black box Download PDF

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KR101736789B1
KR101736789B1 KR1020150172334A KR20150172334A KR101736789B1 KR 101736789 B1 KR101736789 B1 KR 101736789B1 KR 1020150172334 A KR1020150172334 A KR 1020150172334A KR 20150172334 A KR20150172334 A KR 20150172334A KR 101736789 B1 KR101736789 B1 KR 101736789B1
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South Korea
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storage unit
data
black box
stored
storing
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KR1020150172334A
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Korean (ko)
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이동경
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주식회사 엠티오메가
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D41/00—Fittings for identifying vehicles in case of collision; Fittings for marking or recording collision areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D9/00—Recording measured values
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/2215—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test error correction or detection circuits

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Storage Device Security (AREA)

Abstract

The present invention relates to a black box data management apparatus and a method thereof, and more particularly, to a black box data management apparatus and a method therefor, which include a first storage unit fixedly installed in a black box and encrypting and storing data collected by the black box; A second storage unit installed to be detachably attached to the black box, for encrypting and storing data collected by the black box; And a forgery and falsification determining unit for comparing the data stored in the first storing unit with the data stored in the second storing unit to determine whether the data is falsified or altered.

Figure R1020150172334

Description

[0001] APPARATUS AND METHOD FOR MANAGING DATA BLACK BOX [0002]

The present invention relates to a black box data management apparatus and method thereof, and more particularly, to a black box data management apparatus and method for preventing falsification, modulation, and intentional damage of data stored in a black box in real time .

Black Box means flying recorder or flight image storage device. These black boxes were used to record the altitude and speed of the airplane during flight, the operation status, the sound inside the control room, and the contents of communication with the control tower to identify the cause of the accident in the event of an airplane accident and to reproduce the situation at the time of the accident .

However, due to the recent rapid increase in vehicle penetration rate and the rapid increase in the accident rate of automobile, interest and research and development on black box have been increasing rapidly.

Along with this trend, there is a growing interest in the security of data stored in black boxes. If the data stored in the black box can be easily forged or tampered with by an attacker, the data reliability is lowered due to the concern about data distortion, the legal proof can not be recognized, and the purpose of the black box technique can not be achieved .

However, the existing black box technology focuses only on collecting and storing the internal and external sensing data of the vehicle, or reconstructing the accident situation through the data stored in the black box. That is, the existing technology has a problem that it is very vulnerable to the up-and-down modulation of the black box data by the attacker.

In this regard, Korean Patent Laid-Open Publication No. 2009-0090678 discloses a " screen capture based computer usage history black box and monitoring system ".

It is an object of the present invention to provide a black box data management apparatus having a double storage structure for safely storing data stored in a black box and a method thereof.

It is another object of the present invention to provide a black box data management apparatus and method for black-box data management that cancels or forcibly decodes data stored in a black box.

It is another object of the present invention to provide a black box data management apparatus and method for storing history information generated according to data encryption to prevent data from being damaged.

According to an aspect of the present invention, there is provided a black box data management apparatus comprising: a first storage unit fixedly installed in a black box and storing data collected by the black box; A second storage unit detachably attached to the black box and storing data collected by the black box; A forgery and falsification determining unit that decodes data stored in the first storage unit and data stored in the second storage unit and determines that the data is falsified or altered if the decoded results are not identical; A history storage unit installed in the second storage unit and storing history information generated according to data encryption; And a count information storage unit, which is provided in the history storage unit, and stores count information on the number of times the data is encrypted and stored.

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The history storage unit may further include a transmission unit for transmitting history information including at least one of status information, operation information, time information, and frequency information to the first storage unit.

And a corruption determination unit for comparing the history information received and stored by the first storage unit with the history information stored in the second storage unit to determine whether the data is corrupted.

In addition, if the history information stored in the first storage unit and the history information stored in the second storage unit do not match, the corruption determination unit determines that the data is corrupted.

The history storage unit may further include an alarm unit for notifying the replacement time of the second storage unit when the counted number of times counted by the count information storage unit is equal to or greater than a predetermined maximum service life.

According to another aspect of the present invention, there is provided a method of managing black box data, the method comprising: storing data collected by the black box fixedly installed in a black box by a first storage unit; Storing data collected by the black box to be detachably attached to the black box by a second storage unit; And decrypting the encrypted data stored in the first storage unit and the encrypted data stored in the second storage unit by the forgery and falsification unit and determining that the data is falsified or altered if the decrypted result is not identical; Storing history information generated by data encryption in a step of storing data collected by the black box, the history information being detachably attached to the black box; And a step of storing history information generated according to the data encryption, the number of times of counting the number of times the data is encrypted and stored.

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The step of storing the history information generated according to the data encryption may further include transmitting the story information to the first storage unit.

Comparing the history information received and stored by the first storage unit with the history information stored in the second storage unit after the step of transmitting the history information to the first storage unit to determine whether the data is damaged or not ; And

And a step of informing the replacement time of the second storage unit when the counted number becomes equal to or more than a predetermined maximum usage life time after storing the number of times of counting the number of times the data is encrypted and stored .

The black box data management apparatus and method according to the present invention having the above-described configuration can store data related to vehicle operation in a safe manner by storing data stored in a black box in a double manner.

Further, the present invention has an effect of preventing data from being falsified or altered for malicious purpose by encrypting and decrypting the data stored in the black box, and protecting against data loss and damage.

In addition, the present invention has an effect of verifying intentional corruption of data by storing history information generated according to data encryption.

1 is a diagram for explaining a configuration of a black box data management apparatus according to the present invention.
2 is a diagram for explaining a detailed configuration of a history storage unit of a second storage unit employed in the black box data management apparatus according to the present invention.
3 is a flowchart illustrating a procedure for determining whether data is falsified or altered in the black box data management method according to the present invention.
FIG. 4 is a flowchart illustrating a procedure for determining whether data is corrupted in the black box data management method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. . First, in adding reference numerals to the constituent elements of the drawings, it should be noted that the same constituent elements are denoted by the same reference numerals whenever possible even if they are displayed on other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a diagram for explaining a configuration of a black box data management apparatus according to the present invention.

1, the black box data management apparatus 100 according to the present invention mainly includes a black box 10, a first storage unit 200, a second storage unit 300, a forgery and alteration determination unit 400, And a corruption determination unit 500.

The black box 10 is installed in a moving means such as a vehicle, a ship and an airplane, collects driving information, and includes a plurality of sensors 11, a data processing unit 12, and a first storage unit 200.

The plurality of sensors 11 include an image sensor, a voice sensor, an impact sensor, a speed sensor, an acceleration sensor, a brake sensor, and the like. In detail, the image sensor collects image data about the inside and the outside of the vehicle, the voice sensor collects voice data about the inside and the outside of the vehicle, the impact sensor senses an impact occurring in the inside and the outside of the vehicle, And the brake sensor collect data related to running and moving of the vehicle.

The data processing unit 12 processes the data collected from the plurality of sensors 11 and stores the processed data in the first storage unit and the second storage unit. At this time, the data processing unit 12 processes the collected data in a predetermined processing unit in consideration of the capacity, the block size, and the like of the first storage unit 200 and the second storage unit 300, In the storage unit (200) and the second storage unit (300).

The first storage unit 200 may be a hard disk drive type storage device and may be fixed to a black box or may include various types of memory devices.

The second storage unit 300 may be one of a CF (Compact Flash) memory, a SD (Secure Digital) card, a memory stick, and a USB Device. Since the second storage unit 300 is a portable removable memory, it can be separated from the black box by a police officer or an owner of an accident vehicle and used as evidence data when an accident occurs.

Here, the first storage unit 200 and the second storage unit 300 perform encryption of data transmitted from the data processing unit using a predetermined encryption algorithm, and then store the encrypted data. At this time, the first storage unit 200 and the second storage unit 300 may use encryption algorithms such as a hash function, a symmetric key, and a public key.

The forgery and falsification determining unit 400 compares the data stored in the first storage unit 200 and the data stored in the second storage unit 300 and determines whether the data is falsified or altered. The forgery and falsification determining unit 400 decodes the data stored in the first storage unit 200 and the data stored in the second storage unit 300 and determines that the data is falsified or altered if the decoded results are not identical.

The corruption judgment unit 500 judges whether or not the history information stored in the history storage unit 310 of the second storage unit 300 and the history information stored in the separate memory (not shown) 2 storage unit 300 to determine whether or not the data is corrupted. If the history information stored in the first storage unit 200 does not match the history information stored in the second storage unit 300, the corruption determination unit 500 determines that the data is corrupted. Here, the configuration and process of generating and storing the history information by the second storage unit 300 will be described in detail later with reference to FIG.

2 is a diagram for explaining a detailed configuration of a history storage unit of a second storage unit employed in the black box data management apparatus according to the present invention.

Referring to FIG. 2, the history storage unit 310 of the second storage unit 300 stores history information generated according to data encryption.

For this, the history storage unit 310 includes a frequency information storage unit 311, an alarm unit 312, and a transmission unit 313.

The number-of-times information storage unit 311 stores the number of times that the number of times the data is encrypted and stored is counted.

The alarm unit 312 informs the replacement time of the second storage unit when the number of times counted by the number information storage unit 311 is equal to or greater than a predetermined maximum usable life.

The transmission unit 313 transmits the history information including the number information to the first storage unit.

3 is a flowchart illustrating a procedure for determining whether data is falsified or altered in the black box data management method according to the present invention.

Referring to FIG. 3, in the black box data management method according to the present invention, the method of determining whether data is falsified or altered uses the above-described black box data management apparatus, and a repeated description will be omitted.

First, the first storage unit fixedly installed in the black box encrypts and stores the data collected by the black box (S100).

Next, the second storage unit installed to be detachably attached to the black box encrypts and stores the data collected by the black box (S110).

In this case, in steps S100 and S110, the first storage unit and the second storage unit may use an encryption algorithm such as a hash function, a symmetric key, and a public key.

Next, the data stored in the first storage unit and the data stored in the second storage unit are decoded and compared (S120).

If it is determined in step S120 that the decoded data is not the same, the data is determined to be falsified or modulated. If the decoded data is the same, it is determined that the data is not falsified or altered (S130).

FIG. 4 is a flowchart illustrating a procedure for determining whether data is corrupted in the black box data management method according to the present invention.

Referring to FIG. 4, a method for determining whether or not data is corrupted in the black box data management method uses the above-described black box data management apparatus, and a duplicate description will be omitted.

First, the second storage unit generates history information collected according to data encryption (S200). In operation S200, history information is generated in accordance with the number of times the data is encrypted and stored.

Next, the second storage unit stores the generated history information (S210).

Next, the second storage unit transmits the history information to the first storage unit (S220).

Next, the first storage unit stores the history information transmitted from the second storage unit in a separate memory (S230).

Next, the history information stored in the first storage unit is compared with the history information stored in the second storage unit (S240).

If the history information stored in the first storage unit does not match the history information stored in the second storage unit in step S240, it is determined that the data is damaged (S250).

As described above, the black box data management apparatus and method according to the present invention has the effect of safely storing data related to vehicle operation by storing data stored in the black box in a double manner.

Further, the present invention can prevent data from being falsified or altered for malicious purposes by preventing the data from being lost or damaged by encrypting and decrypting the data stored in the black box.

Also, the present invention can verify deliberate destruction of data by storing history information generated according to data encryption.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

10: Black box 11: Multiple sensors
12:
200: first storage unit 300: second storage unit
400: Forgery and falsification judging unit 500: Corruption judging unit

Claims (15)

A first storage unit fixedly installed in the black box and storing data collected by the black box;
A second storage unit detachably attached to the black box and storing data collected by the black box;
A forgery and falsification determining unit that decodes data stored in the first storage unit and data stored in the second storage unit and determines that the data is falsified or altered if the decoded results are not identical;
A history storage unit installed in the second storage unit and storing history information generated according to data encryption; And
And a count information storage unit, which is provided in the history storage unit, for storing count information on the number of times the data is encrypted and stored. delete delete delete The method according to claim 1,
Wherein the history storage unit further comprises a transmission unit for transmitting the history information including the number information to the first storage unit. 6. The method of claim 5,
And a corruption determination unit for comparing the history information received and stored by the first storage unit with the history information stored in the second storage unit to determine whether data is corrupted. The method according to claim 6,
Wherein the corruption determination unit determines that data is corrupted if the history information stored in the first storage unit does not match the history information stored in the second storage unit as a result of the comparison. The method according to claim 1,
Wherein the history storage unit further comprises an alarm unit for notifying the replacement time of the second storage unit when the counted number of times counted by the count information storage unit is equal to or greater than a predetermined maximum usable life time. Storing data collected by the black box fixedly installed in the black box by the first storage unit;
Storing data collected by the black box to be detachably attached to the black box by a second storage unit; And
Decrypting the encrypted data stored in the first storing unit and the encrypted data stored in the second storing unit by the forgery and falsification determining unit and judging that the data is falsified or altered if the decrypted result is not the same; Including,
And storing data collected by the black box, the data being installed and detached from the black box,
Storing history information generated according to data encryption; And
And storing the count information of the number of times the data is encrypted and stored, the number being stored in the history information generated according to the data encryption. delete delete delete 10. The method of claim 9,
The step of storing the history information generated according to the data encryption includes:
And transmitting the history information to the first storage unit. 14. The method of claim 13,
After transmitting the history information to the first storage unit,
And comparing the history information received and stored by the first storage unit with the history information stored in the second storage unit to determine whether the data is corrupted or not. 10. The method of claim 9,
After the step of storing the number of times of counting the number of times the data is encrypted and stored,
And informing the replacement time of the second storage unit when the counted number becomes equal to or greater than a predetermined maximum usable life time.
KR1020150172334A 2015-12-04 2015-12-04 Apparatus and method for managing data of black box KR101736789B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200046406A (en) * 2018-10-24 2020-05-07 동서대학교 산학협력단 real time image forgery preventing method of black box for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4863161B2 (en) * 2005-12-20 2012-01-25 株式会社ニコン Image storage device and computer program
KR101262961B1 (en) * 2012-08-30 2013-05-09 주식회사 베프스 Integrity data back-up system for vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4863161B2 (en) * 2005-12-20 2012-01-25 株式会社ニコン Image storage device and computer program
KR101262961B1 (en) * 2012-08-30 2013-05-09 주식회사 베프스 Integrity data back-up system for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200046406A (en) * 2018-10-24 2020-05-07 동서대학교 산학협력단 real time image forgery preventing method of black box for vehicle
KR102168488B1 (en) * 2018-10-24 2020-10-21 동서대학교 산학협력단 real time image forgery preventing method of black box for vehicle

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