CN109688146A - A kind of data access method, gateway controller and automobile - Google Patents
A kind of data access method, gateway controller and automobile Download PDFInfo
- Publication number
- CN109688146A CN109688146A CN201811636266.XA CN201811636266A CN109688146A CN 109688146 A CN109688146 A CN 109688146A CN 201811636266 A CN201811636266 A CN 201811636266A CN 109688146 A CN109688146 A CN 109688146A
- Authority
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- China
- Prior art keywords
- host computer
- network segment
- link order
- request link
- obd
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
-
- 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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
-
- 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
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Abstract
The present invention provides a kind of data access method, gateway controller and automobiles, are related to automobile technical field.This method comprises: receiving the request link order that the host computer connecting with OBD on-board automatic diagnosis system interface is sent；According to the request link order, safety certification is carried out with the host computer；If authenticating the CAN message forwarding capability successfully opened between CAN controller local area network and OBD interface.This programme acts as the function of firewall, realizes the buffer action to vehicle interior communication data by gateway insulation blocking vehicle communication data, gateway, and off-board can not arbitrarily read vehicle communication data, avoid leaking data, ensure that the information security of vehicle.
Description
Technical field
The present invention relates to automobile technical field, in particular to a kind of data access method, gateway controller and automobile.
Background technique
With vehicle intellectualized, net connectionization and the raising of motorized degree, the various attacks such as information simulation, signal are distorted
The method and approach of vehicle are more and more, and the information security that vehicle is faced faces a severe challenge.
The electric-control system of automobile can access the CANBUS bus of vehicle control system by OBD interface, to each of vehicle
The function of a control module is adjusted, and there are great security risks, in order to protect vehicle CAN network communication data safe,
Prevent information of vehicles from revealing, CANH/CANL communication bus cannot connect directly to OBD mouthfuls.In order to facilitate engineer to vehicle after sale
Fault location and problem investigation are carried out, gateway is utilized to realize external and interior communication data isolation.Only host computer and gateway
After safety certification success, supervisory controller is just able to achieve CAN controller and the functions such as diagnoses, writes with a brush dipped in Chinese ink, remotely accessing.
Summary of the invention
The embodiment of the present invention provides a kind of data access method, gateway controller and automobile, direct to solve OBD interface
Connecting with CAN bus has security risk.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of data access method, the net applied to vehicle
Close controller, which comprises
Receive the request link order that the host computer connecting with OBD on-board automatic diagnosis system interface is sent；
According to the request link order, safety certification is carried out with the host computer；
If authenticating the CAN message forwarding capability successfully opened between CAN controller local area network and OBD interface.
Further, in the request company for receiving the host computer connecting with OBD on-board automatic diagnosis system interface and sending
Before connecing instruction, the method also includes:
The wake-up signal issued when vehicle powers on is obtained, state of activation is entered according to the wake-up signal.
Further, described according to the request link order, safety certification is carried out with the host computer, comprising:
According to the request link order, Xiang Suoshu host computer sends authentication information；
It obtains the host computer and calculates the first code key obtained according to the authentication information；
First code key is compared with the second code key being obtained ahead of time；
If first code key and second secret key pair than consistent, determine to authenticate successfully；
If first code key and second secret key pair than inconsistent, determine authentification failure.
Further, described according to the request link order, after carrying out safety certification with the host computer, the side
Method further include:
If authentification failure, ignore the request link order that the host computer is sent.
Further, after the CAN message forwarding capability opened between CAN controller local area network and OBD interface, institute
State method further include:
Obtain network segment message routing open command or network segment message routing out code that the host computer is sent；
According to the network segment message routing open command received, it is right in the network segment message routing open command to control
The network segment and the OBD interface answered carry out message forwarding；
According to the network segment message routing out code received, it is right in the network segment message routing out code to control
The network segment and the OBD interface answered stop message forwarding；
The embodiment of the present invention also provides a kind of gateway controller, comprising:
Receiving module, the request connection sent for receiving the host computer connecting with OBD on-board automatic diagnosis system interface
Instruction；
Security authentication module, for carrying out safety certification with the host computer according to the request link order；
First control module, if for authenticating the CAN report successfully opened between CAN controller local area network and OBD interface
Literary forwarding capability.
Further, the gateway controller further include:
It obtains module and activation shape is entered according to the wake-up signal for obtaining the wake-up signal issued when vehicle powers on
State.
Further, the security authentication module includes:
Transmission unit, for according to the request link order, Xiang Suoshu host computer to send authentication information；
Acquiring unit calculates the first code key obtained according to the authentication information for obtaining the host computer；
Processing unit, for comparing first code key with the second code key being obtained ahead of time；
First judging unit, if determining to authenticate successfully than consistent for first code key and second secret key pair；
Second judging unit, if determining that certification is lost than inconsistent for first code key and second secret key pair
It loses.
Further, the gateway controller further include:
Second obtains module, for obtaining the network segment message routing open command or network segment message road that the host computer is sent
By out code；
Second control module, for controlling the network segment report according to the network segment message routing open command received
Corresponding network segment and the OBD interface carry out message forwarding in text routing open command；
Third control module, for controlling the network segment report according to the network segment message routing out code received
Corresponding network segment and the OBD interface stop message forwarding in text routing out code.
The embodiment of the present invention also provides a kind of automobile, including above-mentioned gateway controller.
The beneficial effects of the present invention are:
Above scheme, by gateway insulation blocking vehicle communication data, gateway acts as the function of firewall, realizes pair
The buffer action of vehicle interior communication data, off-board can not arbitrarily read vehicle communication data, avoid leaking data, guarantee
The information security of vehicle.
Detailed description of the invention
Fig. 1 shows the flow diagrams of the data access method of the embodiment of the present invention；
One of the flow diagram of safety certification process of Fig. 2 expression embodiment of the present invention；
Fig. 3 indicates the two of the flow diagram of the safety certification process of the embodiment of the present invention；
Fig. 4 indicates the module diagram of the gateway controller of the embodiment of the present invention；
Fig. 5 indicates the module diagram of the security authentication module of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in detail.
The present invention is directly connect with CAN bus OBD interface has security risk, provides a kind of data access
Method, gateway controller and automobile.
As shown in Figure 1, the embodiment of the present invention provides a kind of data access method, applied to the gateway controller of vehicle, institute
The method of stating includes:
Step 110, the request link order that the host computer connecting with OBD on-board automatic diagnosis system interface is sent is received；
Step 120, according to the request link order, safety certification is carried out with the host computer；
Step 130, if authenticating the CAN message forwarding function successfully opened between CAN controller local area network and OBD interface
Energy.
It should be noted that host computer can read the communication number in the CAN bus of vehicle by connecting with OBD interface
According to.It in order to avoid information leakage, needs to carry out safety certification between host computer and gateway controller, only certification passes through,
It can access to network segment CAN communication data.
In the present embodiment, by gateway insulation blocking vehicle communication data, gateway acts as the function of firewall, realizes
To the buffer action of vehicle interior communication data, off-board can not arbitrarily read vehicle communication data, avoid leaking data, protect
The information security of vehicle is demonstrate,proved.
Specifically, it before obtaining the request link order that host computer is sent, needs to activate gateway controller, really
It is in running order to protect gateway controller, therefore prior to step 110, the method also includes:
Step 100, the wake-up signal issued when vehicle powers on is obtained, state of activation is entered according to the wake-up signal.
It should be noted that powering on activation gateway controller except through vehicle, can also be carried out by CAN bus message
Activation.
As shown in Fig. 2, the specific verification process in step 120 includes:
Step 121, according to the request link order, Xiang Suoshu host computer sends authentication information；
Step 122, it obtains the host computer and calculates the first code key obtained according to the authentication information；
Step 123, first code key is compared with the second code key being obtained ahead of time；
Step 124, if first code key and second secret key pair are than consistent, determine to authenticate successfully；
Step 125, if first code key and second secret key pair are than inconsistent, determine authentification failure.
It should be noted that when host computer and gateway controller carry out safety certification, by using protocol Data Unit
And security certificate algorithm is realized, specifically, the authentication information that gateway controller is sent carries 4byte seed data, host computer
The first code key is calculated according to the seed data in authentication information.
As shown in figure 3, in embodiments of the present invention, host computer is from request link order is issued to receiving authentication information needs
200ms needs 100ms to the first code key is issued from authentication information is received, from the first code key is issued to receiving authentication result needs
200ms.Therefore the safety certification process of host computer and gateway controller only needs 500ms can be completed, verification process safety and and
When.
Specifically, as a result inconsistent if gateway controller is by comparing the first code key and the second code key, determine that certification is lost
It loses, then without subsequent message routing control process, therefore after step 120, the method also includes:
If authentification failure, ignore the request link order that the host computer is sent.
Specifically, if gateway controller is by comparing the first code key and the second code key, as a result unanimously, judgement is authenticated successfully,
Subsequent message routing control process is then carried out, therefore after step 130, the method also includes:
Step 140, the network segment message routing open command or the closing of network segment message routing for obtaining the host computer transmission refer to
It enables；
Step 150, it according to the network segment message routing open command received, controls the network segment message routing and opens
Corresponding network segment and the OBD interface carry out message forwarding in instruction；
Step 160, it according to the network segment message routing out code received, controls the network segment message routing and closes
Corresponding network segment and the OBD interface stop message forwarding in instruction.
It should be noted that can control net by network segment message routing open command or network segment message routing out code
Close OBD mouthfuls of message routing on single network segment, multiple network segments and all network segments.
As shown in figure 4, the embodiment of the present invention also provides a kind of gateway controller, comprising:
Receiving module 210 connects for receiving the request that the host computer connecting with OBD on-board automatic diagnosis system interface is sent
Connect instruction；
Security authentication module 220, for carrying out safety certification with the host computer according to the request link order；
First control module 230, if being opened between CAN controller local area network and OBD interface for authenticating successfully
CAN message forwarding capability.
Specifically, the gateway controller further include:
It obtains module and activation shape is entered according to the wake-up signal for obtaining the wake-up signal issued when vehicle powers on
State.
Specifically, as shown in figure 5, the security authentication module 220 includes:
Transmission unit 221, for according to the request link order, Xiang Suoshu host computer to send authentication information；
Acquiring unit 222 calculates the first code key obtained according to the authentication information for obtaining the host computer；
Processing unit 223, for comparing first code key with the second code key being obtained ahead of time；
First judging unit 224, if for first code key and second secret key pair than consistent, determine to authenticate at
Function；
Second judging unit 225, if determining to authenticate than inconsistent for first code key and second secret key pair
Failure.
Specifically, the gateway controller further include:
Second obtains module, for obtaining the network segment message routing open command or network segment message road that the host computer is sent
By out code；
Second control module, for controlling the network segment report according to the network segment message routing open command received
Corresponding network segment and the OBD interface carry out message forwarding in text routing open command；
Third control module, for controlling the network segment report according to the network segment message routing out code received
Corresponding network segment and the OBD interface stop message forwarding in text routing out code.
The embodiment of the present invention also provides a kind of automobile, including above-mentioned gateway controller.
It should be noted that gateway acts as the function of firewall by gateway insulation blocking vehicle communication data, realize
To the buffer action of vehicle interior communication data, off-board can not arbitrarily read vehicle communication data, avoid leaking data,
It ensure that the information security of vehicle.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (10)
1. a kind of data access method, the gateway controller applied to vehicle, which is characterized in that the described method includes:
Receive the request link order that the host computer connecting with OBD on-board automatic diagnosis system interface is sent；
According to the request link order, safety certification is carried out with the host computer；
If authenticating the CAN message forwarding capability successfully opened between CAN controller local area network and OBD interface.
2. data access method according to claim 1, which is characterized in that in the reception and OBD mounted automatic diagnosis
Before the request link order that the host computer of system interface connection is sent, the method also includes:
The wake-up signal issued when vehicle powers on is obtained, state of activation is entered according to the wake-up signal.
3. data access method according to claim 1, which is characterized in that it is described according to the request link order, with
The host computer carries out safety certification, comprising:
According to the request link order, Xiang Suoshu host computer sends authentication information；
It obtains the host computer and calculates the first code key obtained according to the authentication information；
First code key is compared with the second code key being obtained ahead of time；
If first code key and second secret key pair than consistent, determine to authenticate successfully；
If first code key and second secret key pair than inconsistent, determine authentification failure.
4. data access method according to claim 1, which is characterized in that it is described according to the request link order, with
After the host computer carries out safety certification, the method also includes:
If authentification failure, ignore the request link order that the host computer is sent.
5. data access method according to claim 1, which is characterized in that the unlatching CAN controller local area network and OBD
After CAN message forwarding capability between interface, the method also includes:
Obtain network segment message routing open command or network segment message routing out code that the host computer is sent；
According to the network segment message routing open command received, control corresponding in the network segment message routing open command
Network segment and the OBD interface carry out message forwarding；
According to the network segment message routing out code received, control corresponding in the network segment message routing out code
Network segment and the OBD interface stop message forwarding.
6. a kind of gateway controller characterized by comprising
Receiving module, the request link order sent for receiving the host computer connecting with OBD on-board automatic diagnosis system interface；
Security authentication module, for carrying out safety certification with the host computer according to the request link order；
First control module, if for authenticating the CAN message turn successfully opened between CAN controller local area network and OBD interface
Send out function.
7. gateway controller according to claim 6, which is characterized in that the gateway controller further include:
It obtains module and state of activation is entered according to the wake-up signal for obtaining the wake-up signal issued when vehicle powers on.
8. gateway controller according to claim 6, which is characterized in that the security authentication module includes:
Transmission unit, for according to the request link order, Xiang Suoshu host computer to send authentication information；
Acquiring unit calculates the first code key obtained according to the authentication information for obtaining the host computer；
Processing unit, for comparing first code key with the second code key being obtained ahead of time；
First judging unit, if determining to authenticate successfully than consistent for first code key and second secret key pair；
Second judging unit, if determining authentification failure than inconsistent for first code key and second secret key pair.
9. gateway controller according to claim 6, which is characterized in that the gateway controller further include:
Second obtains module, for obtaining the network segment message routing open command or network segment message routing pass that the host computer is sent
Close instruction；
Second control module, for controlling network segment message road according to the network segment message routing open command received
Message forwarding is carried out by network segment corresponding in open command and the OBD interface；
Third control module, for controlling network segment message road according to the network segment message routing out code received
Message forwarding is stopped by network segment corresponding in out code and the OBD interface.
10. a kind of automobile, which is characterized in that including the described in any item gateway controllers of such as claim 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636266.XA CN109688146A (en) | 2018-12-29 | 2018-12-29 | A kind of data access method, gateway controller and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636266.XA CN109688146A (en) | 2018-12-29 | 2018-12-29 | A kind of data access method, gateway controller and automobile |
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| Publication Number | Publication Date |
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| CN109688146A true CN109688146A (en) | 2019-04-26 |
Family
ID=66191215
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| CN201811636266.XA Pending CN109688146A (en) | 2018-12-29 | 2018-12-29 | A kind of data access method, gateway controller and automobile |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110427784A (en) * | 2019-07-29 | 2019-11-08 | 浙江吉利新能源商用车集团有限公司 | A kind of security gateway device and safety communicating method of vehicle |
| CN111077883A (en) * | 2019-12-27 | 2020-04-28 | 国家计算机网络与信息安全管理中心 | Vehicle-mounted network safety protection method and device based on CAN bus |
| CN112015158A (en) * | 2019-05-30 | 2020-12-01 | 比亚迪股份有限公司 | Vehicle gateway control system and method and vehicle |
| CN112383506A (en) * | 2020-10-13 | 2021-02-19 | 浙江吉利控股集团有限公司 | Network control device, method, equipment and medium of non-original module |
| CN113472762A (en) * | 2021-06-22 | 2021-10-01 | 重庆长安汽车股份有限公司 | Method and system for limiting vehicle-mounted OBD (on-board diagnostics) to read bus information |
| CN113467410A (en) * | 2020-03-31 | 2021-10-01 | 北京新能源汽车股份有限公司 | Vehicle electronic control unit data acquisition method, transmission method and acquisition device |
| CN114153195A (en) * | 2021-11-30 | 2022-03-08 | 中国重汽集团济南动力有限公司 | Automatic offline detection and calibration system for vehicle electric control braking function |
| CN114172675A (en) * | 2020-08-21 | 2022-03-11 | 广州汽车集团股份有限公司 | Gateway access method, device, electronic equipment and storage medium |
| CN114362975A (en) * | 2020-09-27 | 2022-04-15 | 陕西重型汽车有限公司 | Central gateway with dynamic port mapping function and message forwarding mapping method |
| CN114422208A (en) * | 2021-12-30 | 2022-04-29 | 上海集度汽车有限公司 | Vehicle safety communication method, device, microprocessor and storage medium |
| CN114598718A (en) * | 2021-03-25 | 2022-06-07 | 长城汽车股份有限公司 | Method and system for remotely limiting vehicle starting, vehicle-mounted gateway and vehicle body controller |
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| CN114598718A (en) * | 2021-03-25 | 2022-06-07 | 长城汽车股份有限公司 | Method and system for remotely limiting vehicle starting, vehicle-mounted gateway and vehicle body controller |
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| CN113472762A (en) * | 2021-06-22 | 2021-10-01 | 重庆长安汽车股份有限公司 | Method and system for limiting vehicle-mounted OBD (on-board diagnostics) to read bus information |
| CN114153195A (en) * | 2021-11-30 | 2022-03-08 | 中国重汽集团济南动力有限公司 | Automatic offline detection and calibration system for vehicle electric control braking function |
| CN114422208A (en) * | 2021-12-30 | 2022-04-29 | 上海集度汽车有限公司 | Vehicle safety communication method, device, microprocessor and storage medium |
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Application publication date: 20190426 |