CN103529823A - Security access control method for vehicle diagnosis system - Google Patents
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- CN103529823A CN103529823A CN201310487803.XA CN201310487803A CN103529823A CN 103529823 A CN103529823 A CN 103529823A CN 201310487803 A CN201310487803 A CN 201310487803A CN 103529823 A CN103529823 A CN 103529823A
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Abstract
The invention relates to a security access control method for a vehicle diagnosis system and belongs to the technical field of vehicle electronics and vehicle security system design. According to the security access control method, security access levels are increased, and an electronic control unit is additionally arranged to be used as a judgment criterion of the security access control, so the safety and reliability are improved.
Description
Technical field
The present invention relates to automotive electronics and automobile safety system design field, be specifically related to a kind of safety access control method for automotive diagnostic system.
Background technology
Development along with auto industry, increasing semiconductor and computer technology are applied in automobile, incident is increasing of vehicle electric fault, when detecting, maintenance is difficult to rely on workman to pass through micro-judgment fault, simultaneously, because the new technology in Auto Electronic Controlled System is constantly updated, for the Data Update of Car Electronic Control unit, the work such as parameter calibration are also more and more common.
Automotive diagnostic system, as the main means of vehicle fault detection, is widely used in various types of vehicles, comprises diagnostic equipment and electronic-controlled installation.In current automotive diagnostic system exploitation, each controller is gradually to ISO14229 protocol-compliant, this agreement does not have specific (special) requirements to physical medium, and only diagnosis request service ID is stipulated, for the service that need to carry out parameter adjustment, function change etc. and relate to controller secure, need diagnostic equipment to carry out safety verification service, after by safety verification, can carry out follow-up services request.
As shown in Figure 1, traditional automotive diagnostic system secure access service can be according to the requirement of diagnosing protocol, diagnostic equipment can send the order of a request seed to vehicle electronic control unit, electronic control unit produces at random one group of random number and sends to diagnostic equipment, diagnostic equipment calculates result according to corresponding algorithm, as key, sends to electronic control unit again, and electronic control unit compares the result of this key and self calculating, if unanimously enter secure access, mistake exits.The mechanism of this secure access requires the algorithm of diagnostic equipment and electronic control unit necessary consistent, once there be side's algorithm to reveal, the computing method of whole key must change, and cause main engine plants and user's heavy losses.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: how to design a kind of safety access control method for automotive diagnostic system, improve safety and reliability.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of safety access control method for automotive diagnostic system, comprise the following steps:
The diagnostic equipment of S1, automotive diagnostic system sends diagnostic mode request to the electronic control unit of automotive diagnostic system, and described diagnostic mode determines the secure access grade that will ask;
S2, described electronic control unit confirm according to the diagnostic mode request receiving whether the secure access grade that described electronic control unit is set reaches the desired secure access grade of diagnostic equipment, if, to diagnostic equipment, return to affirmative acknowledgement, and continue to carry out following steps, otherwise return to negative response to diagnostic equipment;
S3, diagnostic equipment send seed request command to described electronic control unit after receiving described affirmative acknowledgement, and as the data of request service, described seed request command comprises the address of electronic control unit;
Whether S4, described electronic control unit are checked the address of the electronic control unit in received seed request command consistent with the address of self, are to diagnostic equipment, to return to response message, otherwise stop communication; Described response message comprises one group of random number;
S5, diagnostic equipment are encrypted computing according to described one group of random number, and the key of generation is sent to described electronic control unit by message; Simultaneously, described electronic control unit is also encrypted computing according to described one group of random number, key in the message of the result of calculation of generation and diagnostic equipment transmission is compared, identical by checking, and send positive response message to diagnostic equipment, diagnostic equipment obtains secure access authority, otherwise stops communication.
Preferably, described random number produced according to the message response time of the address of described electronic control unit and electronic control unit.
Preferably, in step S5, described diagnostic equipment and electronic control unit all adopt aes algorithm to carry out described cryptographic calculation, calculate the key of 128.
Preferably, described diagnostic mode is car load factory diagnostic mode.
(3) beneficial effect
The present invention, by increasing secure access grade and electronic control unit address as the criterion of safe access control, has improved safety and reliability.
Accompanying drawing explanation
Fig. 1 is existing secure access process flow diagram;
Fig. 2 is method flow diagram of the present invention.
Embodiment
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 2, the invention provides a kind of safety access control method for automotive diagnostic system, comprise the following steps:
The diagnostic equipment of S1, automotive diagnostic system sends diagnostic mode request to the electronic control unit of automotive diagnostic system, and described diagnostic mode determines the secure access grade that will ask;
In the present embodiment, described diagnostic mode is car load factory diagnostic mode.Diagnostic mode is divided into universal diagnostic and two kinds of patterns of self-defined diagnosis, the basis of universal diagnostic pattern is conventional diagnosing protocol, self-defined diagnostic mode is divided into again client's diagnosis and the diagnosis of car load factory, client's diagnosis can be obtained more information of vehicles, and the security access levels of car load factory diagnosis is higher.All diagnostic devices all need carry out the selection of diagnostic mode in the equipment connection stage, only have correct schema code to be sent out and to receive, and just can enter into corresponding diagnostic mode.
S2, described electronic control unit confirm according to the diagnostic mode request receiving whether the secure access grade that described electronic control unit is set reaches the desired secure access grade of diagnostic equipment, if, to diagnostic equipment, return to affirmative acknowledgement, and continue to carry out following steps, otherwise return to negative response to diagnostic equipment;
S3, diagnostic equipment send seed request command to described electronic control unit according to the security access request of stipulating in ISO14229 after receiving described affirmative acknowledgement, as the data of request service, described seed request command comprises the address (being for example 123) of electronic control unit;
Whether S4, described electronic control unit are checked the address of the electronic control unit in received seed request command consistent with the address of self, are to diagnostic equipment, to return to response message, otherwise stop communication; Described response message comprises one group of random number;
S5, diagnostic equipment are encrypted computing according to described one group of random number, the key of generation is sent to described electronic control unit by message, and this key is filled in data fields with Intel form; Simultaneously, described electronic control unit is also encrypted computing according to described one group of random number, key in the message of the result of calculation of generation and diagnostic equipment transmission is compared, identical by checking, and send positive response message to diagnostic equipment, diagnostic equipment obtains secure access authority, otherwise stops communication.
Described one group of random number utilizes preset algorithm to produce according to the message response time of the address of described electronic control unit and electronic control unit, and the random number producing is like this not easy to be decrypted, and improves security.
In step S5, described diagnostic equipment and electronic control unit all adopt Advanced Encryption Standard aes algorithm to carry out described cryptographic calculation, calculate the key of 128.Aes algorithm has the features such as high efficiency and dirigibility, and contrast RSA or MD5 scheduling algorithm have stronger security, low to hardware requirement.
As can be seen from the above embodiments, the present invention, by increasing secure access grade and electronic control unit address as the criterion of safe access control, has improved safety and reliability.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. for a safety access control method for automotive diagnostic system, it is characterized in that, comprise the following steps:
The diagnostic equipment of S1, automotive diagnostic system sends diagnostic mode request to the electronic control unit of automotive diagnostic system, and described diagnostic mode determines the secure access grade that will ask;
S2, described electronic control unit confirm according to the diagnostic mode request receiving whether the secure access grade that described electronic control unit is set reaches the desired secure access grade of diagnostic equipment, if, to diagnostic equipment, return to affirmative acknowledgement, and continue to carry out following steps, otherwise after returning to negative response, finishes diagnostic equipment;
S3, diagnostic equipment send seed request command to described electronic control unit after receiving described affirmative acknowledgement, and as the data of request service, described seed request command comprises the address of electronic control unit;
Whether S4, described electronic control unit are checked the address of the electronic control unit in received seed request command consistent with the address of self, are to diagnostic equipment, to return to response message, otherwise stop communication; Described response message comprises one group of random number;
S5, diagnostic equipment are encrypted computing according to described one group of random number, and the key of generation is sent to described electronic control unit by message; Simultaneously, described electronic control unit is also encrypted computing according to described one group of random number, key in the message of the result of calculation of generation and diagnostic equipment transmission is compared, identical by checking, and send positive response message to diagnostic equipment, diagnostic equipment obtains secure access authority, otherwise stops communication.
2. the method for claim 1, is characterized in that, described random number produced according to the message response time of the address of described electronic control unit and electronic control unit.
3. the method for claim 1, is characterized in that, in step S6, described diagnostic equipment and electronic control unit all adopt aes algorithm to carry out described cryptographic calculation, calculate the key of 128.
4. the method as described in claim 1 or 2 or 3, is characterized in that, described diagnostic mode is car load factory diagnostic mode.
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| CN103763098A (en) * | 2014-01-26 | 2014-04-30 | 安徽江淮汽车股份有限公司 | Security verification method for diagnosis |
| CN104808641A (en) * | 2014-01-24 | 2015-07-29 | 通用汽车环球科技运作有限责任公司 | Method of performing microprocessor alu integrity test over a distributed asynchronous serial communication network |
| CN105141579A (en) * | 2015-07-23 | 2015-12-09 | 惠州华阳通用电子有限公司 | Security verification method of vehicular equipment |
| CN105278518A (en) * | 2014-06-11 | 2016-01-27 | 通用汽车环球科技运作有限责任公司 | Inhibiting access to sensitive vehicle diagnostic data |
| CN105320034A (en) * | 2014-07-29 | 2016-02-10 | 通用汽车环球科技运作有限责任公司 | Securely providing diagnostic data from a vehicle to a remote server using a diagnostic tool |
| CN105704102A (en) * | 2014-11-26 | 2016-06-22 | 广州汽车集团股份有限公司 | Method and device for vehicle network access control |
| CN105799620A (en) * | 2014-12-29 | 2016-07-27 | 上海通用汽车有限公司 | Security code calculation of a vehicle electronic control module |
| CN106059754A (en) * | 2016-06-23 | 2016-10-26 | 北京汽车股份有限公司 | Vehicle data processing method and system, and devices |
| CN106372545A (en) * | 2016-08-29 | 2017-02-01 | 北京新能源汽车股份有限公司 | Data processing method, on-board diagnostics (OBD) controller and vehicle |
| CN106814675A (en) * | 2016-12-31 | 2017-06-09 | 华晨汽车集团控股有限公司 | Safety access method for verifying automotive diagnostic installation legitimacy |
| CN107453864A (en) * | 2017-07-04 | 2017-12-08 | 奇瑞汽车股份有限公司 | A kind of safe verification method and system |
| CN108076043A (en) * | 2016-11-10 | 2018-05-25 | 通用汽车环球科技运作有限责任公司 | For the virtual key of vehicle maintenance |
| CN108111308A (en) * | 2017-12-25 | 2018-06-01 | 北京康拓科技有限公司 | One kind is based on the encrypted industry internet communication encryption method of dynamic random |
| CN108139751A (en) * | 2015-09-30 | 2018-06-08 | 西门子股份公司 | Determine the method and diagnostic method of the diagnostic mode of the time series of technological system |
| CN108454410A (en) * | 2018-04-13 | 2018-08-28 | 安徽江淮汽车集团股份有限公司 | A kind of fuel cell diagnosis cut-in method |
| CN108958224A (en) * | 2018-07-27 | 2018-12-07 | 深圳市元征科技股份有限公司 | A kind of Vehicular diagnostic method, diagnosis terminal and diagnosis box |
| CN109076078A (en) * | 2016-02-22 | 2018-12-21 | 大陆汽车系统公司 | Method to establish and update the key of the In-vehicle networking communication for safety |
| CN109298966A (en) * | 2018-09-30 | 2019-02-01 | 潍柴动力股份有限公司 | A kind of diagnostic equipment adapter method for anti-counterfeit and device |
| CN109391466A (en) * | 2017-08-10 | 2019-02-26 | 比亚迪股份有限公司 | Safety access method, the apparatus and system of vehicle electronic control unit |
| CN109462607A (en) * | 2018-12-20 | 2019-03-12 | 重庆圣眸科技开发有限公司 | A kind of safe UDS diagnoses the implementation method on CAN |
| CN110392036A (en) * | 2018-04-18 | 2019-10-29 | 丰田自动车株式会社 | Service provider system, car-mounted device and command transmission method towards vehicle |
| CN111431901A (en) * | 2020-03-23 | 2020-07-17 | 重庆长安汽车股份有限公司 | System and method for safely accessing ECU (electronic control Unit) in vehicle by external equipment |
| CN111866199A (en) * | 2019-04-30 | 2020-10-30 | 广州汽车集团股份有限公司 | IP address allocation method of ECU in vehicle-mounted communication system and related product |
| CN112327796A (en) * | 2020-10-21 | 2021-02-05 | 诚迈科技（南京）股份有限公司 | Control method and electronic control unit for automobile diagnosis service |
| CN112738029A (en) * | 2020-12-14 | 2021-04-30 | 武汉格罗夫氢能汽车有限公司 | Hydrogen energy automobile electronic controller diagnosis safety algorithm management system |
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Families Citing this family (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166087A (en) * | 2007-09-30 | 2008-04-23 | 奇瑞汽车有限公司 | A secure validation method for car diagnosis communication |
| CN102248948A (en) * | 2009-12-10 | 2011-11-23 | 通用汽车环球科技运作有限责任公司 | Self testing systems and methods |
| US20120110296A1 (en) * | 2010-10-28 | 2012-05-03 | Denso Corporation | Electronic apparatus |
| CN103310137A (en) * | 2012-03-16 | 2013-09-18 | 宇龙计算机通信科技(深圳)有限公司 | Method for safely accessing terminal and terminal |
| US20130246135A1 (en) * | 2012-03-14 | 2013-09-19 | Zhenrong Wang | System, device and method of remote vehicle diagnostics based service for vehicle owners |
-
2013
- 2013-10-17 CN CN201310487803.XA patent/CN103529823B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166087A (en) * | 2007-09-30 | 2008-04-23 | 奇瑞汽车有限公司 | A secure validation method for car diagnosis communication |
| CN102248948A (en) * | 2009-12-10 | 2011-11-23 | 通用汽车环球科技运作有限责任公司 | Self testing systems and methods |
| US20120110296A1 (en) * | 2010-10-28 | 2012-05-03 | Denso Corporation | Electronic apparatus |
| US20130246135A1 (en) * | 2012-03-14 | 2013-09-19 | Zhenrong Wang | System, device and method of remote vehicle diagnostics based service for vehicle owners |
| CN103310137A (en) * | 2012-03-16 | 2013-09-18 | 宇龙计算机通信科技(深圳)有限公司 | Method for safely accessing terminal and terminal |
Non-Patent Citations (1)
| Title |
|---|
| 王秋霞 等: "《用于远程汽车故障诊断系统的安全访问控制》", 《微处理机》 * |
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| CN105799620A (en) * | 2014-12-29 | 2016-07-27 | 上海通用汽车有限公司 | Security code calculation of a vehicle electronic control module |
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| CN105141579A (en) * | 2015-07-23 | 2015-12-09 | 惠州华阳通用电子有限公司 | Security verification method of vehicular equipment |
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| CN108454410B (en) * | 2018-04-13 | 2020-06-23 | 安徽江淮汽车集团股份有限公司 | Fuel cell diagnosis access method |
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| CN112738029A (en) * | 2020-12-14 | 2021-04-30 | 武汉格罗夫氢能汽车有限公司 | Hydrogen energy automobile electronic controller diagnosis safety algorithm management system |
| CN114338073A (en) * | 2021-11-09 | 2022-04-12 | 江铃汽车股份有限公司 | Protection method, system, storage medium and equipment for vehicle-mounted network |
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