CN107393054A - Drive recorder and its method for data protection and identification - Google Patents
Drive recorder and its method for data protection and identification Download PDFInfo
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- CN107393054A CN107393054A CN201710613315.7A CN201710613315A CN107393054A CN 107393054 A CN107393054 A CN 107393054A CN 201710613315 A CN201710613315 A CN 201710613315A CN 107393054 A CN107393054 A CN 107393054A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computing Systems (AREA)
- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Software Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The invention provides a kind of drive recorder, includes gathering audio-video collection module, data memory module, display module, positioning system modules and the safety chip of audio frequency and video initial data.The positioning system modules are used to generate location information initial data；Unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, private key data and public key data are preset in the safety chip, the safety chip is by the audio frequency and video initial data and the location information Raw Data Generation data summarization, data signature is generated through unsymmetrical key signature algorithm again, the audio frequency and video initial data, the location information initial data and the data signature are stored as drive recorder data file by the data memory module jointly.A kind of method that the present invention also provides data protection of drive recorder and identification.Correlation technique is compared, and the protection intensity of drive recorder of the invention and its method for data protection and identification to data is high, and data are not easy to be tampered, highly reliable.
Description
【Technical field】
The present invention relates to a kind of drive recorder field of data storage, more particularly to a kind of drive recorder and its data to protect
Shield and the method for identification.
【Background technology】
With expanding economy, the recoverable amount of automobile constantly increases, and caused traffic accident therewith is also continuously increased, in order to
Convenient reproduction traffic accident and confirmation of responsibility, the use of drive recorder are also increasingly popularized.
However, the data (containing video, audio, positional information etc.) of the drive recorder in correlation technique, are all with plain text
The mode of verification is not added to be stored in equipment, it is easy to maliciously to be distorted.In some cases, the driving note being tampered
Instrument content is recorded, its legitimacy and convincingness as evidence can be had a strong impact on.Moreover, driving is distorted for the purpose of insurance fraud
Recorder data, unnecessary economic loss can be also brought to related insurance enterprise.
Therefore, it is necessary to a kind of new drive recorder and its data protection are provided with the method identified to solve above-mentioned ask
Topic.
【The content of the invention】
It is an object of the invention to provide a kind of drive recorder and its method for data protection and identification, the driving recording
Protection intensity of the instrument to data is high, and data are not easy to be tampered, highly reliable.
In order to achieve the above object, the invention provides a kind of drive recorder, including for gathering audio frequency and video original number
According to audio-video collection module, data memory module and display module, the drive recorder also include positioning system modules and
Safety chip, the positioning system modules are used to generate location information initial data；Preset in the safety chip asymmetric close
Key signature algorithm, unsymmetrical key sign test algorithm, private key data and public key data, the safety chip are used for the audio frequency and video
Initial data and the location information Raw Data Generation data summarization, then by the data summarization through pre- in the safety chip
If the unsymmetrical key signature algorithm and private key generation data signature, the data memory module is by the audio frequency and video
Initial data, the location information initial data and the data signature are stored as drive recorder data file jointly；It is described
Safety chip is additionally operable to enter the drive recorder data file by the unsymmetrical key sign test algorithm and the public key
Row checking.
Preferably, the safety chip includes security module, the unsymmetrical key signature algorithm, the unsymmetrical key
Sign test algorithm, the private key data and the public key data are defaulted in the security module, the audio frequency and video initial data and
The location information initial data generates the data summarization through the security module, and the security module plucks the data
Generate the data signature.
Preferably, the drive recorder also includes smart card, and the unsymmetrical key signature is preset in the smart card
Algorithm, unsymmetrical key sign test algorithm, the private key data and the public key data, for the data summarization to be generated
The data signature and offer native authentication function.
A kind of method that the present invention also provides data protection of drive recorder and identification, this method comprise the following steps：
Drive recorder, including audio-video collection module, data memory module, display module, positioning system modules are provided
And safety chip, preset in the safety chip unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, private key data and
Public key data corresponding with the private key data；
The data protection of drive recorder, the audio frequency and video initial data that the drive recorder is gathered and the positioning letter
Cease initial data and generate the first data signature by the private key and the unsymmetrical key signature algorithm so that the audio frequency and video
Initial data, the location information initial data and the first data signature of stating collectively form the drive recorder data file
And it is stored in the data memory module；
The data authentication of drive recorder, the drive recorder data file in data memory module is resolved to
Two data signatures, audio, video data and location information data, multilevel iudge pass through the audio, video data and location information data
Second data signature whether is generated after the unsymmetrical key sign test algorithm and public key data processing, and exports identification
Conclusion.
Preferably, the data protection steps of the drive recorder comprise the following steps：
Raw data acquisition, audio frequency and video initial data is gathered by the audio-video collection module, be by the positioning
Module of uniting generation location information initial data；
First data summarization generates, and the safety chip is by the audio frequency and video initial data and the location information original number
The first data summarization is generated according to hashed algorithm；
First data signature generates, and the safety chip is by first data summarization through default described asymmetric in it
The first data signature is generated after key signature algorithm and private key data processing；
Drive recorder Generating Data File, the audio frequency and video initial data, the location information initial data and described
First data signature is collectively forming drive recorder data file and is stored in the data memory module.
Preferably, the data authentication step of the drive recorder comprises the following steps：
Drive recorder data file parses, by the drive recorder data file solution in the data memory module
Analyse as the audio, video data, the location information data and second data signature；
Second data summarization parses, and is the by the audio, video data and the hashed arithmetic analysis of location information data
Two data summarizations；
Second verifying data signature, by second data summarization and the public key through the unsymmetrical key sign test algorithm
Processing, export expert's conclusion.
Preferably, the safety chip includes security module, the unsymmetrical key signature algorithm, the unsymmetrical key
Sign test algorithm, the private key data and the public key data are defaulted in the security module.
Preferably, the drive recorder also includes smart card, and the unsymmetrical key signature is preset in the smart card
Algorithm, unsymmetrical key sign test algorithm, the private key data and the public key data.
Preferably, in the data authentication step of the drive recorder, its data authentication mode includes the machine and identifies, be local
Identification and long-range identification.
Preferably, described the machine is accredited as tests according to the unsymmetrical key in the smart card or the safety chip
Label algorithm and the public key data are identified the drive recorder data file in the data memory module；It is described
Locally the drive recorder data authentication service supplier is accredited as by the smart card information and the drive recorder number
Third party's identification is carried out according to file；It is described long-range to be accredited as the drive recorder data file and the drive recorder
Identity information is committed to data authentication service provider server by network mode, passes through the data authentication service supplier
Server is identified the drive recorder data file.
Compared with correlation technique, drive recorder of the invention and its data protection are with the method for identification, passing through setting
Safety chip and smart card, and unsymmetrical key signature algorithm, asymmetric close is preset in the safety chip and the smart card
Key sign test algorithm and setting private key data and public key data, the audio frequency and video initial data and location information initial data are given birth to
It is encrypted into summary, then by unsymmetrical key signature algorithm and private key data, synthesizes the drive recorder data
File is stored so that the drive recorder data file protection intensity is high, and data are not easy to be tampered；When the driving note
When record instrument data file is identified, parsed by public key and unsymmetrical key sign test algorithm, it is asymmetric close due to having used
The signature sign test mechanism of key signature algorithm, so the drive recorder data file by identification has non-repudiation,
Its is highly reliable.
【Brief description of the drawings】
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing, wherein：
Fig. 1 is the structured flowchart of drive recorder of the present invention；
Fig. 2 is data protection and the FB(flow block) of the method for identification of drive recorder of the present invention；
Fig. 3 is the data protection of drive recorder described in method of the data protection of drive recorder of the present invention with identification
The flow chart of step；
Fig. 4 is the data authentication of drive recorder described in method of the data protection of drive recorder of the present invention with identification
The flow chart of step.
【Embodiment】
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, the structured flowchart for drive recorder of the present invention.The invention provides a kind of drive recorder 100,
Including audio-video collection module 1, positioning system modules 2, display module 3, safety chip 4 and data memory module 5, the sound regards
Frequency acquisition module 1, positioning system modules 2, display module 3 and the data memory module 5 are electrically connected with the safety chip 4 respectively
Connection is connect or communicates, to form communication.
The audio-video collection module 1 is used to gather audio frequency and video initial data, such as the audio-video collection module 1 to take the photograph
As system and device.
The positioning system modules 2 are used to generate location information initial data, for example the positioning system modules 2 are GPS.
The display module 3 is used for audio-video collection module 1 described in real-time display to the audio frequency and video raw data acquisition
Real-time pictures, be also used for inquiring about function related to setting etc. and interface be provided.For example the display module 3 can be shown with LCD
Screen.
Unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, private key data and public affairs are preset in the safety chip 4
Key data, the safety chip 4 are used to calculate the audio frequency and video initial data and the location information initial data by hashing
Method generates data summarization, then the data summarization is given birth to through the default unsymmetrical key signature algorithm in the safety chip
Into data signature.Certainly, in the encryption process for generating the data signature, private key data can be combined and carried out, it is improved and deposit
The security of the data of storage.
The safety chip 4 is additionally operable to the drive recorder data file passing through the unsymmetrical key sign test algorithm
Verified with the public key.
More excellent, the safety chip 4 includes security module 41, the unsymmetrical key signature algorithm, described asymmetric
Key sign test algorithm, the private key data and the public key data are defaulted in the security module 41, and the audio frequency and video are original
Data and the location information initial data generate the data summarization through the security module 41, and the security module 41 will
The data summarization generates the data signature after carrying out unsymmetrical key signature algorithm and the private key data encryption.
Certainly, the encryption to the audio frequency and video initial data and the location information initial data is not limited to described
Safety chip 4, can also be otherwise：
For example in present embodiment, the drive recorder 100 also includes smart card 6, the smart card 6 can be inserted into institute
State safety chip 4 and form data communication with the safety chip 4 or the security module 41, institute is preset in the smart card 6
Unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, the private key data and the public key data are stated, for inciting somebody to action
The data summarization generates the data signature.
Certainly, the smart card 6 also provides for native authentication function, i.e., the drive recorder data file is passed through
The unsymmetrical key sign test algorithm and the public key are verified.
The data memory module 5 is by the audio frequency and video initial data, the location information initial data and the data
Signature is stored as drive recorder data file jointly.
The drive recorder data file that the drive recorder 100 through the present invention is gathered and stored is because employing
Unsymmetrical key signature algorithm and private key data are encrypted, and protection intensity is high, and data are not easy to be tampered, and can pass through institute
State smart card 6 and carry out native authentication, good reliability.
Fig. 2 is please referred to, is data protection and the FB(flow block) of the method for identification of drive recorder of the present invention.This hair
The bright a kind of method that data protection of drive recorder and identification are also provided, below with the drive recorder 100 of the present invention
Exemplified by illustrate, this method comprises the following steps：
Step S1, the drive recorder 100 is provided, including it is the audio-video collection module 1, positioning system modules 2, aobvious
Show module 3, safety chip 4 and data memory module 5.The unsymmetrical key signature algorithm, non-is preset in 4, the safe core
Symmetric key sign test algorithm, private key data and public key data corresponding with the private key data.If it should be noted that only need
Data protection to drive recorder, then the unsymmetrical key signature algorithm and described can be only preset in 4, the safe core
Private key data.
Step S2, the data protection of drive recorder, the audio frequency and video original number that the drive recorder 100 is gathered
The first data signature is generated by the private key and the unsymmetrical key signature algorithm according to the location information initial data,
So that the audio frequency and video initial data, the location information initial data and the first data signature of stating collectively form the driving
Recorder data file is simultaneously stored in the data memory module 5.
Fig. 3 is please referred to, is driving recording described in method of the data protection of drive recorder of the present invention with identification
The flow chart of the data protection steps of instrument.In this step, specifically comprise the following steps：
Step S21, raw data acquisition, audio frequency and video initial data is gathered by the audio-video collection module 1, passes through institute
State positioning system modules 2 and generate location information initial data.
Step S22, the first data summarization generates, and the safety chip 4 is by the audio frequency and video initial data and the positioning
The hashed algorithm of information raw data generates the first data summarization.
Step S23, the first data signature generates, and the safety chip 4 is by first data summarization through default in it
The unsymmetrical key signature algorithm and the private key data generate the first data signature after carrying out signature algorithm processing.
Step S24, drive recorder Generating Data File, the audio frequency and video initial data, the location information original number
According to being collectively forming drive recorder data file with first data signature and be stored in the data memory module 5.
Step S3, the data authentication of drive recorder, by the drive recorder data file in data memory module
The second data signature, audio, video data and location information data are resolved to, are judged the audio, video data, the location information
Data and the public key data export expert's conclusion after unsymmetrical key sign test algorithm carries out verification process.
In this step S3, the data authentication mode of drive recorder includes the machine identification, local identification and long-range identification.
Described the machine is accredited as according to the unsymmetrical key sign test algorithm in the smart card or the safety chip
The drive recorder data file in the data memory module is identified with the public key data；
The local is accredited as the drive recorder data authentication service supplier by the smart card information and described
Drive recorder data file carries out third party's identification；
Long-range be accredited as passes through the identity information of the drive recorder data file and the drive recorder
Network mode is committed to data authentication service provider server, and the public key data information back-up of smart card deposits in remote service
Device, it can be retrieved by identity information, by the data authentication service provider server to the drive recorder by described in
Data file is identified.
Fig. 4 is please referred to, is driving recording described in method of the data protection of drive recorder of the present invention with identification
The flow chart of the data authentication step of instrument is specifically, this step comprises the following steps：
Step S31, drive recorder data file parses, by the drive recorder in the data memory module 5
Data file resolves to the audio, video data, the location information data and second data signature；
Step S32, the second data summarization parses, by the safety chip 4 by the audio, video data and the positioning
The hashed arithmetic analysis of information data is the second data summarization.In this step, the safety chip 4 includes security module 41, institute
State unsymmetrical key sign test algorithm and the public key data is defaulted in the security module 41.
Step S33, the second verifying data signature, by the security module 41 in the safety chip 4 by described
Two data summarizations carry out verification algorithm processing, output identification knot through the unsymmetrical key sign test algorithm and the public key data
By.For example if generation second data signature, then the expert's conclusion exported is true.
Certainly, in step S2 and step S3, the audio frequency and video initial data and the location information initial data are added
Close processing is not limited to the security module 41 of the safety chip 4 or the safety chip 4, can also be otherwise：
For example the drive recorder 100 also includes smart card 6, the smart card 6 can be inserted into the safety chip 4 simultaneously
Data communication is formed with the safety chip 4 or the security module 41, the unsymmetrical key label are preset in the smart card 6
Name algorithm, unsymmetrical key sign test algorithm, the private key data and the public key data.Encryption and native authentication etc.
Completed by the smart card 6.
Compared with correlation technique, drive recorder of the invention and its data protection are with the method for identification, passing through setting
Safety chip and smart card, and unsymmetrical key signature algorithm, asymmetric close is preset in the safety chip and the smart card
Key sign test algorithm and setting private key data and public key data, the audio frequency and video initial data and location information initial data are given birth to
It is encrypted into summary, then by unsymmetrical key signature algorithm and private key data, synthesizes the drive recorder data
File is stored so that the drive recorder data file protection intensity is high, and data are not easy to be tampered；When the driving note
When record instrument data file is identified, parsed by public key and unsymmetrical key sign test algorithm, it is asymmetric close due to having used
The signature sign test mechanism of key signature algorithm, so the drive recorder data file by identification has non-repudiation,
Its is highly reliable.
Above-described is only embodiments of the present invention, it should be noted here that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to the protection model of the present invention
Enclose.
Claims (10)
1. a kind of drive recorder, including for gathering audio-video collection module, the data memory module of audio frequency and video initial data
And display module, it is characterised in that the drive recorder also includes positioning system modules and safety chip, the alignment system
Module is used to generate location information initial data；Unsymmetrical key signature algorithm, unsymmetrical key are preset in the safety chip
Sign test algorithm, private key data and public key data, the safety chip are used to believe the audio frequency and video initial data and the positioning
Raw Data Generation data summarization is ceased, then by the data summarization through the default unsymmetrical key label in the safety chip
Name algorithm and private key generation data signature, the data memory module believe the audio frequency and video initial data, the positioning
Breath initial data and the data signature are stored as drive recorder data file jointly；The safety chip is additionally operable to will be described
Drive recorder data file is verified by the unsymmetrical key sign test algorithm and the public key.
2. drive recorder according to claim 1, it is characterised in that the safety chip includes security module, described
Unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, the private key data and the public key data default in institute
State in security module, the audio frequency and video initial data and the location information initial data generate the number through the security module
According to summary, and the data summarization is generated the data signature by the security module.
3. drive recorder according to claim 2, it is characterised in that the drive recorder also includes smart card, institute
State and the unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, the private key data and the institute are preset in smart card
Public key data is stated, for the data summarization to be generated into the data signature and provides native authentication function.
4. a kind of method of data protection of drive recorder and identification, it is characterised in that this method comprises the following steps：
Drive recorder, including audio-video collection module, data memory module, display module, positioning system modules and peace are provided
Full chip, preset in the safety chip unsymmetrical key signature algorithm, unsymmetrical key sign test algorithm, private key data and with institute
State public key data corresponding to private key data；
The data protection of drive recorder, the audio frequency and video initial data that the drive recorder is gathered and the location information are former
Beginning data generate the first data signature by the private key and the unsymmetrical key signature algorithm so that the audio frequency and video are original
Data, the location information initial data and the first data signature of stating collectively form the drive recorder data file and deposit
It is stored in the data memory module；
The data authentication of drive recorder, the drive recorder data file in data memory module is resolved into the second number
According to signature, audio, video data and location information data, multilevel iudge is by described in the audio, video data and location information data warp
Second data signature whether is generated after unsymmetrical key sign test algorithm and public key data processing, and exports identification knot
By.
5. the method for the data protection of drive recorder according to claim 4 and identification, it is characterised in that the driving
The data protection steps of recorder comprise the following steps：
Raw data acquisition, audio frequency and video initial data is gathered by the audio-video collection module, passes through the alignment system mould
Block generates location information initial data；
First data summarization generates, and the safety chip passes through the audio frequency and video initial data and the location information initial data
Hashing algorithm generates the first data summarization；
First data signature generates, and the safety chip is by first data summarization through the default unsymmetrical key in it
The first data signature is generated after signature algorithm and private key data processing；
Drive recorder Generating Data File, the audio frequency and video initial data, the location information initial data and described first
Data signature is collectively forming drive recorder data file and is stored in the data memory module.
6. the method for the data protection of drive recorder according to claim 4 and identification, it is characterised in that the driving
The data authentication step of recorder comprises the following steps：
Drive recorder data file is parsed, and the drive recorder data file in the data memory module is resolved to
The audio, video data, the location information data and second data signature；
Second data summarization parses, and is the second number by the audio, video data and the hashed arithmetic analysis of location information data
According to summary；
Second verifying data signature, by second data summarization and the public key through the unsymmetrical key sign test algorithm at
Reason, export expert's conclusion.
7. the method for the data protection of the drive recorder according to claim 5 or 6 and identification, it is characterised in that described
Safety chip includes security module, the unsymmetrical key signature algorithm, the unsymmetrical key sign test algorithm, the private key number
According to and the public key data default in the security module.
8. the method for the data protection of drive recorder according to claim 7 and identification, it is characterised in that the driving
Recorder also includes smart card, and the unsymmetrical key signature algorithm, the unsymmetrical key sign test are preset in the smart card
Algorithm, the private key data and the public key data.
9. the method for the data protection of drive recorder according to claim 4 and identification, it is characterised in that the driving
In the data authentication step of recorder, its data authentication mode includes the machine identification, local identification and long-range identification.
10. the method for the data protection of drive recorder according to claim 9 and identification, it is characterised in that described
Machine is accredited as according to the unsymmetrical key sign test algorithm in the smart card or the safety chip and the public key data
The drive recorder data file in the data memory module is identified；The local is accredited as the driving note
Record instrument data authentication service supplier and the smart card information and the drive recorder data file are subjected to third party's identification；
The identity information of the drive recorder data file and the drive recorder is passed through network mode by long-range be accredited as
Data authentication service provider server is committed to, by the data authentication service provider server to the driving recording
Instrument data file is identified.
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| CN201710613315.7A CN107393054A (en) | 2017-07-25 | 2017-07-25 | Drive recorder and its method for data protection and identification |
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| CN201710613315.7A CN107393054A (en) | 2017-07-25 | 2017-07-25 | Drive recorder and its method for data protection and identification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108574578A (en) * | 2018-03-22 | 2018-09-25 | 北京交通大学 | A kind of black box data protection system and method |
| EP3591560A1 (en) * | 2018-07-04 | 2020-01-08 | Continental Teves AG & Co. OHG | Method for managing data of a vehicle user, electronic control module and storage medium |
| CN117113438A (en) * | 2023-10-20 | 2023-11-24 | 深圳市猿人创新科技有限公司 | Anti-tampering method and device for driving record data and driving recorder |
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