KR20150078654A - Apparatus and method for encrypting image taken by vehicle, and server for shearing encrypted image - Google Patents

Abstract

The present invention relates to a device for encrypting a traveling image of a vehicle, which comprises: a GPS information generator generating GPS information via a GPS module; a traveling image photographer photographing a traveling image via a camera module; an encrypter encrypting the traveling image by using the GPS information; and a storage processor storing the encrypted traveling image to a memory.

Description

[0001] APPARATUS AND METHOD FOR ENCRYPTING IMAGE TAKEN BY VEHICLE, AND SERVER FOR SHEARING ENCRYPTED IMAGE [0002]

An apparatus and method for real-time encrypting a running image of a vehicle, and a server sharing an encrypted image.

To analyze the causes of traffic accidents in the event of a traffic accident, a program is used to reconstruct the accident based on the skid mark of the tire left on the accident site, the collision site and damage degree of the accident vehicle, and the statement of the witness. However, this method has difficulty in analyzing the exact cause depending on the road conditions at the time of the accident and the condition of the vehicle, and the reliability of the viewpoint such as the sight of the witness or the victim changing according to the interests.

The black box, which is a video recording device mounted on a vehicle, records the situation before and after a traffic accident, so that the victim and the assailant's claims are incompatible with each other, causing problems or identifying the cause of the accident. It is becoming more and more popular in view of the fact that it can be grasped. It is also increasing that black boxes are installed in public transportation facilities such as taxis and buses and private cars.

However, the data stored in the vehicle black box may not be used if the user disadvantageously corrupts the memory to use the data, or the risk of partial deletion, forgery, or alteration of the data stored in the memory exist. Korean Patent Laid-Open No. 2009-0099716 discloses a structure of a black box for a vehicle having a network function for providing a network function so that a vehicle accident restoration measure can be performed.

And a method for generating an encryption key in real time and dynamically using time and location information received from GPS (Global Positioning System) as key values. In addition, it is desirable to provide a method of encrypting an image photographed through a black box on a block-by-block basis, not on a file-by-file basis. It is to be understood, however, that the technical scope of the present invention is not limited to the above-described technical problems, and other technical problems may be present.

According to an aspect of the present invention, there is provided a navigation system including a GPS information generating unit for generating GPS information through a GPS module, a driving image capturing unit capturing a traveling image through a camera module, An encryption unit for encrypting the traveling image using the GPS information, and a storage processing unit for storing the encrypted traveling image in the memory.

According to an embodiment of the present invention, there is provided a method for controlling a vehicle, comprising the steps of generating GPS information through a GPS module, capturing a traveling image through a camera module, encrypting the traveling image using the GPS information, There is provided a method of encrypting a running image of a vehicle, the method comprising: storing a running image in a memory.

According to an embodiment of the present invention, there is provided an information processing apparatus including an encrypted information sharing unit that shares a piece of information about encryption with a first device, a first device that receives a running image, wherein the running image is encrypted A decoding unit that decodes a traveling image using the traveling image receiving unit and the GPS information, and a decoding unit that, when receiving a request for the traveling image from the second device, transmits the decoded traveling image to the second device It is possible to provide a sharing server for sharing a traveling image to devices including a video transmission unit.

The above-described task solution is merely exemplary and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and the detailed description of the invention.

According to any one of the above-mentioned tasks, a dynamic encryption key can be generated by using time information and location information received from the GPS when storing photographed data for prevention of forgery and falsification of black box data and forgery / falsification determination , It is possible to effectively cope with forgery and falsification of data. It is possible to secure the disk access efficiency and the security against hooking by applying encryption in a block unit to the file IO passing through the kernel rather than the conventional file unit encryption method.

1 is a configuration diagram of an encryption system according to an embodiment of the present invention.
2 is a configuration diagram of a device according to an embodiment of the present invention.
3 is a configuration diagram of a shared server according to an embodiment of the present invention.
4 is a diagram illustrating a random number generation method according to an embodiment of the present invention.
5 is a diagram illustrating a process of encrypting an image according to an embodiment of the present invention on a block-by-block basis.
6 is a flowchart illustrating a method of transmitting a traveling image according to an exemplary embodiment of the present invention.
7 is an operational flowchart illustrating a method of encrypting a running image according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

In this specification, the term " part " includes a unit realized by hardware, a unit realized by software, and a unit realized by using both. Further, one unit may be implemented using two or more hardware, or two or more units may be implemented by one hardware.

In this specification, some of the operations or functions described as being performed by the terminal or the device may be performed in the server connected to the terminal or the device instead. Similarly, some of the operations or functions described as being performed by the server may also be performed on a terminal or device connected to the server.

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

1 is a configuration diagram of an encryption system according to an embodiment of the present invention. Referring to FIG. 1, the encryption system includes a device 10 and a shared server 20 installed in a vehicle. However, since the encryption system shown in FIG. 1 is only an embodiment of the present invention, the configuration of the present invention is not limited to the example shown in FIG.

Each of the configurations shown in FIG. 1 can be generally connected through a network. The network refers to a connection structure in which information can be exchanged between each node such as terminals and servers. One example of such a network is a 3rd Generation Partnership Project (3GPP) network, a Long Term Evolution (LTE) , A WIMAX (World Interoperability for Microwave Access) network, the Internet, a LAN (Local Area Network), a wireless LAN (Local Area Network), a WAN ) Networks, satellite broadcast networks, analog broadcast networks, and the like.

The sharing server 20 can share the GPS information about the encryption with the first device 10 and can receive the encrypted running image based on the GPS information from the first device 10. [ For example, the shared server 20 can receive the encrypted running image based on the GPS information from the black box installed in the vehicle, and can share the GPS information used for encryption through communication with the installed black box of the vehicle have.

The shared server 20 decodes the traveling image based on the shared GPS information, and when the request for the traveling image is received from the second device, the shared server 20 can transmit the decoded traveling image to the second device. For example, the shared server 20 cancels the encryption of the encrypted running image, and when a request for the running image is received using the smartphone of the protector or another device of the user, Smart phone or other device of the user.

In this case, the first device 10 may include a black box that is installed in the vehicle and can capture an external image of the vehicle, but may further include various types of devices. For example, the first device 10 may be a portable terminal capable of connecting to a remote server via a network equipped with a GPS and a camera device.

Meanwhile, the second device (not shown) may include a mobile terminal capable of wireless communication, and may further include various types of devices. For example, the second device (not shown) may be a TV device, a computer, or a portable terminal capable of connecting to a remote server via a network. Here, an example of the TV apparatus includes a smart TV, an IPTV set-top box, and the like. Examples of the computer include a notebook computer, a desktop computer, a laptop computer, One example of the terminal includes a Personal Communication System (PCS), a Global System for Mobile Communications (GSM), a Personal Digital Cellular (PDC), a Personal Handyphone System (PHS) Assistant, IMT (International Mobile Telecommunication) -2000, Code Division Multiple Access (CDMA) -2000, W-Code Division Multiple Access (W-CDMA), Wibro (Wireless Broadband Internet) terminals, smart phones, And the like may be included in the present invention.

However, the first device 10 and the second device 20 are not limited to the illustrated form of FIG. 1 or those exemplified above.

The operation of the shared server 20 will be described later with reference to FIG.

The device 10 can generate GPS information through the GPS module and shoot the traveling image through the camera module. The device 10 represented by a black box installed in the vehicle can generate GPS information on the current position along with the movement of the vehicle and shoot a running image for the vehicle.

The device 10 can encrypt the traveling image using the generated GPS information, and store the encrypted traveling image in the memory. For example, a running image of a vehicle photographed through a black box can be encrypted and stored.

The operation of the device 10 will be described in detail with reference to FIG. 2 below.

2 is a configuration diagram of a device 10 according to an embodiment of the present invention. 2, the device 10 includes a GPS information generating unit 101, a traveling image photographing unit 102, an encrypting unit 103, a storage processing unit 104, and a transmitting unit 105 . However, the configuration of the device 10 shown in Fig. 2 is not limited to those shown above.

The GPS information generating unit 101 generates GPS information through the GPS module. The GPS information may further include time information related to the position measurement of the vehicle, and the reference time corresponding to the time information may be synchronized between the GPS information generating unit and the sharing server 20. [ For example, the GPS information generating unit 101 can generate GPS coordinate information for the current position through the GPS module. In another example, the GPS information generator 101 may generate GPS coordinate information by communicating with a server that transmits GPS coordinate information located externally. In this case, the generated GPS coordinate information may be displayed in latitude and longitude.

The running image capturing unit 102 captures a running image through a camera module. For example, the running image capturing unit 102 can photograph a running image of the vehicle through the camera device connected to the device 10 or connected to the device 10. [ More specifically, with respect to the running of the vehicle, it is possible to photograph the front, side, or rear of the vehicle using the camera device connected to the black box. In another example, a driving image of a vehicle may be captured using a user's smartphone.

The encryption unit 103 encrypts the traveling image using the generated GPS information. At this time, the encryption unit 103 can primarily encrypt the running image, divide the encrypted running image into a plurality of blocks, and encrypt each of the blocks separately using the GPS information.

For example, the encryption unit 103 can primarily encrypt the traveling image based on information such as moving image, voice, or GPX (GPS eXchange Format) generated from the device 10 represented by the black box , It is possible to divide the running image into block units for the file I / O (input / output) passing through the kernel and to encrypt the blocks on a block basis.

The encryption unit 103 includes a random number generation information processing unit (not shown), an encryption key generation unit (not shown), and an encryption processing unit (not shown) .

The random number generation information processing unit can receive information on random number generation from the shared server 20. [ At this time, the shared server 20 can generate a random number based on device-specific information including device serial information, GPS information, synchronized time information, and the like. Information about the random number generation can be received. Referring to FIG. 4, for example, FIG. 4 illustrates a random number generation method according to an embodiment of the present invention. 4, the shared server 20 corresponds to the black box information 401, the time information 402, and the GPS coordinates including the serial number of the black box obtained from the black box or obtained through synchronization with the black box And the token information 404 can be combined to generate a random number used for encryption and the random number generation information processing unit can receive information related to random number generation from the shared server 20. [

The encryption key generation unit can generate the encryption key using the pieces of information. For example, the encryption key generation unit may combine information on random number generation received from the shared server 20, time information, and GPS coordinate information to generate an encryption key. The encryption key generation unit may generate an encryption key based on an AES (Advanced Encryption Standard) scheme or a DES (Data Encryption Standard) scheme. However, another encryption scheme using a symmetric key scheme may be used to generate an encryption key .

The encryption processing unit can encrypt the traveling image on a block-by-block basis using the generated encryption key. The encryption processing unit can perform encryption on a block-by-block basis with respect to a file I / O that passes through the kernel with respect to the running image, instead of on a file or buffer basis. It does not use a separate storage space, so it can improve the access speed of the storage and solve problems caused by application hooking or file hooking.

Referring to FIG. 5, a method of encrypting a traveling image in the encryption unit 103 will be described in more detail.

5 is a diagram illustrating a process of encrypting an image according to an embodiment of the present invention on a block-by-block basis. 5, the encryption unit 103 generates an initial encryption vector 502 by using the GPS coordinate information, the time information synchronized with the shared server 20, and the information of the device 10 by the encryption unit 103 , And the original image 501 can be encrypted (504) on a block-by-block basis. The initial encryption vector 502 can be used by making the latitude and longitude of the GPS coordinate information equal to the block size of the original image 501. [ That is, if the size of the encryption block 504 of the original image 501 is 128 bits, the first 64 bits of the latitude and the first 64 bits of the beginning can be used. At this time, if the latitude and longitude digits are insufficient, 0 can be added (padded) to the insufficient size.

Thereafter, the result of the block encryption 504 of each original image 501 is applied using the encryption key 503 generated based on the information related to the random number generation received from the shared server 20, Can be generated. The result of the block encryption 504 of each original image 501 can be used for the next block encryption.

It is easy to use because it does not need any seed value according to the information about the random number generation received from the shared server 20 and the advantage that the number of times the device 10 has to communicate with the shared server 20 is relatively small . In addition, security can be ensured for the reason that the shared server 20 does not send the input value to the device 10.

The storage processing unit 104 stores the encrypted running image in the memory. As an example, the storage processing unit 104 may store an encrypted running image for the front, side, or rear of the vehicle photographed through the black box in the memory.

The transmitting unit 105 can transmit the encrypted traveling image to the sharing server 20. [ The transmitting unit 105 may transmit the traveling image through the first communication method and the GPS coordinate information may be transmitted to the sharing server 20 through the second communication method with the first communication method. In this case, the second communication method may be based on a communication connection between the transmitting unit 105 and the mobile device of the user, and the transmitting unit 105 may transmit the GPS coordinate information to the sharing server 20 Lt; / RTI > For example, the transmitting unit 105 may transmit the encrypted traveling image to the sharing server 20 on a block-by-block basis, and may transmit the GPS coordinate information to the sharing server 20 through the smartphone of the user. Meanwhile, the transmitting unit 105 may transmit the GPS coordinate information directly to the shared server 20 without passing through the mobile device.

Such a device 10 distributes information on the random number generation from the shared server 20 when communicating with the shared server 20 for the first time, receives information about the distributed random number generation, the current time received via GPS, The location information of the device 10 can be encrypted, and the encrypted location information can be transmitted to the shared server 20 by generating an encryption key with information as an input value. If necessary, an encrypted running image can be transmitted together.

3 is a configuration diagram of a shared server according to an embodiment of the present invention. The shared server 20 shown in FIG. 3 may operate through data transmission / reception with the device 10 described with reference to FIGS. Therefore, the matters not described below can be deduced from the description of the device 10 and the shared server 20 described with reference to FIG. 1 and FIG. 2, and therefore detailed description or duplicated description will be omitted.

3, the sharing server 20 includes an encryption information sharing unit 201, a traveling image receiving unit 202, a decoding unit 203, and a traveling image transmitting unit 204. However, the configuration of the shared server 20 shown in FIG. 3 is not limited to those exemplified above.

The encryption information sharing unit 201 may share GPS information related to encryption with the first device. For example, the encryption information sharing unit 201 may share GPS coordinate information and time information with the user's black box.

The traveling image receiving unit 202 can receive the traveling image from the first device. At this time, the running image may be encrypted by the first device based on the GPS information, and the running image may be encrypted by the block unit.

The decryption unit 203 can decrypt the driving image received from the second device using the shared encryption information. When the driving image transmission unit 204 receives a request for the driving image from the second device, A running image can be transmitted to the second device. For example, the traveling image transmitting unit 204 may transmit the traveling image received from the user's black box to the smartphone of the user, or, in another example, the traveling image transmitting unit 204 may transmit It is also possible to transmit the decoded running image.

6 is a flowchart illustrating a method of transmitting a traveling image according to an exemplary embodiment of the present invention. Referring to FIG. 6, the device 10 requests information on random number generation through the account registered in the shared server 20 (S601), receives information about the random number generation from the shared server 20 (S602 )do. Then, the device 10 generates the cipher key based on the received time, the GPS coordinate information, or the like (S604) by generating the time information and GPS information from the GPS server or receiving the time information and GPS information from the GPS server. The device 10 can encrypt and store the moving image in block units using the generated encryption key. Then, the device 10 can transmit the encrypted running image or the location information to the shared server 20 (S605). The shared server 20 can request the transmission of the encrypted moving image to the device 10 when necessary and the device 10 can transmit the requested traveling image to the sharing server 20 based on the received request. Meanwhile, the shared server 20 may generate an encryption key using time, location information, or the like, or may verify the generated encryption key.

In the above description, steps S601 to S605 may be further divided into further steps or combined into fewer steps, according to an embodiment of the present invention. Also, some of the steps may be omitted as necessary, and the order between the steps may be changed.

7 is an operational flowchart illustrating a method of encrypting a running image according to an embodiment of the present invention. The method for encrypting the running image shown in Fig. 7 includes operations that are processed in a time-series manner in the device 10. [ Therefore, the description of the device 10 through FIGS. 1 and 2 also applies to FIG. 7, even if omitted below.

Referring to FIG. 7, the device 10 generates GPS information through the GPS module (S701), and shoots the traveling image through the camera module (S702). Thereafter, the device 10 can encrypt the traveling image using the GPS information (S703), and store the encrypted traveling image in the memory (S704). The device 10 receives the information about the random number generation from the shared server 20 h, generates an encryption key using the GPS information, and encrypts the traveling image on a block-by-block basis using the generated encryption key.

The device 10 may transmit the encrypted running image to the shared server 20 as necessary.

The method of encrypting the running image described with reference to FIG. 7 can also be implemented in the form of a recording medium including instructions executable by a computer such as a program module executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media.

In addition, the computer-readable medium may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: Device
20: Shared server

Claims (18)

A device for encrypting a running image of a vehicle,
A GPS information generator for generating GPS information through a GPS module;
A traveling image photographing unit photographing the traveling image through a camera module;
An encryption unit for encrypting the traveling image using the GPS information; And
And a storage processing unit for storing the encrypted running image in a memory.
The method according to claim 1,
And a transmitting unit for transmitting the encrypted running image to a shared server.
The method according to claim 1,
Wherein the encryption unit divides the traveling image into a plurality of blocks and encrypts the traveling images for each of the divided blocks.
The method according to claim 1,
Wherein the encryption unit primarily encrypts the traveling image, divides the encrypted traveling image into a plurality of blocks, and encrypts each of the blocks with the use of the SFP information,
And the storage processing unit stores each of the encrypted blocks in a memory.
3. The method of claim 2,
Wherein the GPS information is time information related to the measurement of the position of the vehicle,
Wherein the default time corresponding to the time information is synchronized between the GSPS information generator and the shared server.
3. The method of claim 2,
The GPS information is coordinate information related to the position of the vehicle,
Wherein the transmitting unit transmits the coordinate information and the running image to a sharing server.
The method according to claim 6,
Wherein the transmission unit comprises:
And transmits the traveling image to the sharing server through a first communication method, and transmits the coordinate information to the sharing server through a second communication method.
8. The method of claim 7,
Wherein the second communication scheme is based on a communication connection between the transmitting unit and the mobile device,
And the transmitting unit transmits the coordinate information to the unique server via the mobile device.
3. The method of claim 2,
The encryption unit,
A random number generation information processing unit for receiving information on random number generation from the shared server;
An encryption key generation unit for generating an encryption key using the digital watermark information;
And an encryption processing unit for encrypting the traveling image on a block-by-block basis using the encryption key.
10. The method of claim 9,
Wherein the encryption key generation unit generates the encryption key using the information about the random number generation and the piece of the information.
11. The method of claim 10,
The encryption processing unit,
Encrypt the first block of the running image using the initial encryption vector and the encryption key, and encrypt the second block using the encrypted first block and the encryption key.
10. The method of claim 9,
Wherein the encryption key generation unit generates a plurality of encryption keys using the S / P information,
Wherein the encryption processing unit maps each of the plurality of encryption keys to each of a plurality of blocks of the running image and then encrypts each of the plurality of blocks using each of the plurality of encryption keys.
A method of encrypting a running image of a vehicle,
Generating geospatial information through a GPS module;
Photographing the traveling image through a camera module;
Encrypting the traveling image using the GPS information; And
And storing the encrypted running image in a memory.
14. The method of claim 13,
And transmitting the encrypted running image to a shared server.
15. The method of claim 14,
Wherein the encrypting comprises:
Receiving information on random number generation from the shared server;
Generating an encryption key using the S / P information;
And encrypting the driving image block by block using the encryption key.
A sharing server for sharing a traveling image to devices,
An encryption information sharing unit for sharing the GFSAS information regarding the encryption with the first device;
A traveling image receiving unit that receives a traveling image from the first device, the traveling image being encrypted based on the GPS information;
And decodes the traveling image using the GPS information. And
And transmits the decoded traveling image to the second device when a request for the traveling image is received from the second device.
17. The method of claim 16,
Wherein the second device has the same user information as the first device.
17. The method of claim 16,
Wherein the decoded driving information is mapped to first user information corresponding to the first device,
And the request for the running image includes second user information corresponding to the second device.

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