CN105471583A - Electronic authentication method and system of vehicle-mounted electric appliances - Google Patents
Electronic authentication method and system of vehicle-mounted electric appliances Download PDFInfo
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- CN105471583A CN105471583A CN201410462722.9A CN201410462722A CN105471583A CN 105471583 A CN105471583 A CN 105471583A CN 201410462722 A CN201410462722 A CN 201410462722A CN 105471583 A CN105471583 A CN 105471583A
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Abstract
The invention discloses an electronic authentication method and system of vehicle-mounted electric appliances. The electronic authentication method comprises the following steps that a first vehicle-mounted electric appliance receives electronic authentication request information from a second vehicle-mounted electric appliance; the first vehicle-mounted electric appliance generates electronic authentication replay information according to the electronic authentication request information, and sends the electronic authentication replay information to the second vehicle-mounted electric appliance; the second vehicle-mounted electric appliance receives the electronic authentication replay information, and obtains the authentication state of the first vehicle-mounted electric appliance according to the electronic authentication request information and the electronic authentication replay information; and when the authentication state of the first vehicle-mounted electric appliance is authentication failure, a vehicle is forbidden to be started after first preset time. The electronic authentication method and system only allow normal use of vehicle-mounted electric appliances of the original factory, but not vehicle-mounted electric appliances not of the original factory, in the vehicle, the performance of the whole vehicle is protected, and guarantee is provided for personal and property safety of users.
Description
Technical field
The present invention relates to automotive electronics authentication techniques field, particularly a kind of digital certificate method of vehicle mounted electrical apparatus and a kind of electronic identification system of vehicle mounted electrical apparatus.
Background technology
Automotive circuit diagram is considered to the revolution in automotive technology development process.The degree of automotive circuit diagram is counted as the important symbol weighing Hyundai Motor, is used to develop new model, improves the most important technical measures of automotive performance.
But, due to the vehicle electronic device of each producer and enterprise and bus protocol standard and disunity, when user is after purchasing car without the agreement of producer and enterprise and when arbitrarily changing vehicle mounted electrical apparatus product, the change of overall wire sheaves will be caused, so not only can increase car load power consumption, affect vehicle performance, also can cause spontaneous combustion simultaneously, bring harm even may to the person of user and property.
Summary of the invention
Object of the present invention is intended to solve one of above-mentioned technical problem at least to a certain extent.
For this reason; one object of the present invention is a kind of digital certificate method proposing vehicle mounted electrical apparatus; the digital certificate method of this vehicle mounted electrical apparatus only allows normally to be used onboard by the genuine vehicle mounted electrical apparatus of certification; non-original factory vehicle mounted electrical apparatus then can not use onboard; not only protect the performance of car load, simultaneously also for the personal safety as well as the property safety of user provides strong guarantee.
Another object of the present invention is the electronic identification system proposing a kind of vehicle mounted electrical apparatus.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of digital certificate method of vehicle mounted electrical apparatus, and the digital certificate method of this vehicle mounted electrical apparatus comprises the following steps: the first vehicle mounted electrical apparatus receives the digital certificate solicited message that the second vehicle mounted electrical apparatus sends; Described first vehicle mounted electrical apparatus generates digital certificate return information according to described digital certificate solicited message, and described digital certificate return information is sent to described second vehicle mounted electrical apparatus; Described second vehicle mounted electrical apparatus receives described digital certificate return information, and obtains the authentication state of described first vehicle mounted electrical apparatus according to described digital certificate solicited message and described digital certificate return information; And when the authentication state of described first vehicle mounted electrical apparatus is authentification failure, after the first Preset Time, forbid vehicle launch.
The digital certificate method of the vehicle mounted electrical apparatus that the embodiment of the present invention proposes, receive the digital certificate solicited message of the second vehicle mounted electrical apparatus transmission at the first vehicle mounted electrical apparatus after, first vehicle mounted electrical apparatus generates digital certificate return information according to digital certificate solicited message, and digital certificate return information is sent to the second vehicle mounted electrical apparatus, thus the second vehicle mounted electrical apparatus receives digital certificate return information, and the authentication state of the first vehicle mounted electrical apparatus is obtained according to digital certificate solicited message and digital certificate return information, it is last when the authentication state of the first vehicle mounted electrical apparatus is authentification failure, vehicle launch is forbidden after the first Preset Time.The digital certificate method of this vehicle mounted electrical apparatus only allows normally to be used onboard by the genuine vehicle mounted electrical apparatus of certification; non-original factory vehicle mounted electrical apparatus then can not use onboard; not only protect the performance of car load, simultaneously also for the personal safety as well as the property safety of user provides strong guarantee.
For achieving the above object, the present invention on the other hand embodiment also proposed a kind of electronic identification system of vehicle mounted electrical apparatus, the electronic identification system of this vehicle mounted electrical apparatus comprises the first vehicle mounted electrical apparatus, the second vehicle mounted electrical apparatus and controller, wherein, described first vehicle mounted electrical apparatus, for receiving digital certificate solicited message, and generate digital certificate return information according to described digital certificate solicited message, and send described digital certificate return information; Described second vehicle mounted electrical apparatus, for generating described digital certificate solicited message, and obtains the authentication state of described first vehicle mounted electrical apparatus according to described digital certificate solicited message and described digital certificate return information; And described controller, for when the authentication state of described first vehicle mounted electrical apparatus is authentification failure, after the first Preset Time, forbid vehicle launch.
The electronic identification system of the vehicle mounted electrical apparatus that the embodiment of the present invention proposes, by the first vehicle mounted electrical apparatus, receive digital certificate solicited message, and generate digital certificate return information according to digital certificate solicited message, and send digital certificate return information, and generate digital certificate solicited message by the second vehicle mounted electrical apparatus, and the authentication state of the first vehicle mounted electrical apparatus is obtained according to digital certificate solicited message and digital certificate return information, thus controller is when the authentication state of the first vehicle mounted electrical apparatus is authentification failure, forbids vehicle launch after the first Preset Time.The electronic identification system of this vehicle mounted electrical apparatus only allows normally to be used onboard by the genuine vehicle mounted electrical apparatus of certification; non-original factory vehicle mounted electrical apparatus then can not use onboard; not only protect the performance of car load, simultaneously also for the personal safety as well as the property safety of user provides strong guarantee.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the flow chart of the digital certificate method of vehicle mounted electrical apparatus according to the embodiment of the present invention;
Fig. 2 is the flow chart that the combination instrument of the digital certificate method of vehicle mounted electrical apparatus according to the present invention's specific embodiment obtains the authentication state that goes offline of multimedia system;
Fig. 3 is the flow chart that the combination instrument of the digital certificate method of vehicle mounted electrical apparatus according to the present invention's specific embodiment obtains the accidental enciphering number authentication state of multimedia system;
Fig. 4 is the multimedia system of the digital certificate method of vehicle mounted electrical apparatus according to the present invention's specific embodiment sends flow chart from verification response to combination instrument;
Fig. 5 is the flow chart after the combination instrument of the digital certificate method of vehicle mounted electrical apparatus according to the present invention's specific embodiment obtains the authentication state of multimedia system;
Fig. 6 is the block diagram of the electronic identification system of vehicle mounted electrical apparatus according to the embodiment of the present invention; And
Fig. 7 is the block diagram of the electronic identification system of vehicle mounted electrical apparatus according to an embodiment of the invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The digital certificate method of vehicle mounted electrical apparatus and the electronic identification system of vehicle mounted electrical apparatus that propose according to the embodiment of the present invention are described with reference to the accompanying drawings.
As shown in Figure 1, the digital certificate method of the vehicle mounted electrical apparatus of the embodiment of the present invention comprises the following steps:
S1, the first vehicle mounted electrical apparatus receives the digital certificate solicited message that the second vehicle mounted electrical apparatus sends.
In one embodiment of the invention, the first vehicle mounted electrical apparatus can be multimedia system, and the second vehicle mounted electrical apparatus can be combination instrument.
S2, the first vehicle mounted electrical apparatus generates digital certificate return information according to digital certificate solicited message, and digital certificate return information is sent to the second vehicle mounted electrical apparatus.
Particularly, in one embodiment of the invention, in vehicle, the authentication state etc. of the information such as digital certificate solicited message of variant speed, digital certificate return information and the first vehicle mounted electrical apparatus can pass through CAN (ControllerAreaNetwork, controller local area network) bus transmits, and can be forwarded by gateway, to realize proper communication between each vehicle mounted electrical apparatus in vehicle.
Further, in one embodiment of the invention, digital certificate solicited message can comprise first and go offline and detect authentication request information, or second can be comprised go offline and detect authentication request information and accidental enciphering number authentication request information, what digital certificate return information was corresponding can comprise first goes offline and detects certification return information, or can comprise second and go offline and detect certification return information and accidental enciphering number certification return information.Further, in one embodiment of the invention, accidental enciphering number authentication request information can comprise encrypted random number or encrypted random number sequence, wherein, first vehicle mounted electrical apparatus can be decrypted the encrypted random number in accidental enciphering number authentication request information or encrypted random number sequence according to preset-key, and generates accidental enciphering number certification return information according to the encrypted random number after deciphering or encrypted random number sequence.
S3, the second vehicle mounted electrical apparatus receives digital certificate return information, and obtains the authentication state of the first vehicle mounted electrical apparatus according to digital certificate solicited message and digital certificate return information.
Further, in one embodiment of the invention, second vehicle mounted electrical apparatus can go offline according to first and detect authentication request information and first and go offline and detect the authentication state that goes offline that certification return information obtains the first vehicle mounted electrical apparatus, and can according to second go offline detect authentication request information, accidental enciphering number authentication request information, second goes offline and detects the accidental enciphering number authentication state that certification return information and accidental enciphering number certification return information obtain the first vehicle mounted electrical apparatus.
Further, in one embodiment of the invention, go offline detect certification return information when the second vehicle mounted electrical apparatus does not receive first after the second Preset Time such as 60s, the authentication state that goes offline then judging the first vehicle mounted electrical apparatus is authentification failure, and go offline detect certification return information and do not receive accidental enciphering number certification return information after the 3rd Preset Time such as 500ms when the second vehicle mounted electrical apparatus receives second within the second Preset Time, or when the accidental enciphering number certification return information that the second vehicle mounted electrical apparatus receives is incorrect, the accidental enciphering number authentication state then judging the first vehicle mounted electrical apparatus is authentification failure.
Wherein, in one embodiment of the invention, when the encrypted random number after deciphering in accidental enciphering number certification return information and the encrypted random number in accidental enciphering number authentication request information, not meet preset rules such as not identical or do not mate, and when the encrypted random number sequence after deciphering in accidental enciphering number certification return information and the encrypted random number sequence in accidental enciphering number authentication request information do not meet preset rules such as not identical or not mate etc. time, the second vehicle mounted electrical apparatus thinks that the accidental enciphering number certification return information received is incorrect.
It should be noted that, when the authentication state that goes offline of the first vehicle mounted electrical apparatus is authentification failure, illustrate that appearance first vehicle mounted electrical apparatus is removed or communicates between the first vehicle mounted electrical apparatus with the second vehicle mounted electrical apparatus the situation such as abnormal.When the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus is authentification failure, illustrate that the first vehicle mounted electrical apparatus is non-original-pack or genuine vehicle mounted electrical apparatus.
S4, when the authentication state of the first vehicle mounted electrical apparatus is authentification failure, forbids vehicle launch after the first Preset Time.
In step s 4 which, after forbidding vehicle launch, the first vehicle mounted electrical apparatus of authentification failure need be gained vehicle mounted electrical apparatus that is original-pack or genuine by user, and after authentication success, normally can use vehicle.Particularly, in one embodiment of the invention, go offline detect certification return information when the second vehicle mounted electrical apparatus does not receive first after the second Preset Time, then the second vehicle mounted electrical apparatus judges that the authentication state that goes offline of the first vehicle mounted electrical apparatus is authentification failure, and then second vehicle mounted electrical apparatus after the first Preset Time, do not receive first yet go offline and detect certification return information, then can by controlling engine to forbid vehicle launch.
In addition, in one embodiment of the invention, go offline detect certification return information and do not receive accidental enciphering number certification return information after the 3rd Preset Time when the second vehicle mounted electrical apparatus receives second within the second Preset Time, then the second vehicle mounted electrical apparatus judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus is authentification failure, and then second vehicle mounted electrical apparatus after the first Preset Time, do not receive accidental enciphering number certification return information yet, then can by control engine to forbid vehicle launch.
In addition, in one embodiment of the invention, when the accidental enciphering number certification return information that the second vehicle mounted electrical apparatus receives is incorrect, then the second vehicle mounted electrical apparatus judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus is authentification failure, and then second vehicle mounted electrical apparatus when not receiving correct accidental enciphering number certification return information yet after the first Preset Time, then can by controlling engine to forbid vehicle launch.
Further, in one embodiment of the invention, when the second vehicle mounted electrical apparatus receive within the second Preset Time second go offline detect certification return information and do not receive after the 3rd Preset Time accidental enciphering number certification return information or the accidental enciphering number certification return information that receives within the 3rd Preset Time incorrect time, second vehicle mounted electrical apparatus sends digital certificate solicited message again, and do not receive after the 4th Preset Time such as 500ms accidental enciphering number certification return information or the accidental enciphering number certification return information that receives within the 4th Preset Time incorrect time, then the second vehicle mounted electrical apparatus judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus is authentification failure, and then second vehicle mounted electrical apparatus when not receiving correct accidental enciphering number certification return information yet after the first Preset Time, then can by controlling engine to forbid vehicle launch.
In sum, only have the authentication state that goes offline when the first vehicle mounted electrical apparatus to be authentication success and the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus is authentication success time, second vehicle mounted electrical apparatus just can judge that the authentication state of the first vehicle mounted electrical apparatus is authentication success, namely the second vehicle mounted electrical apparatus judges that the first vehicle mounted electrical apparatus is original-pack or genuine vehicle mounted electrical apparatus, and then allows user normally to use vehicle.
Further, in one embodiment of the invention, the digital certificate method of vehicle mounted electrical apparatus is further comprising the steps of:
S5, when the authentication state of the first vehicle mounted electrical apparatus is authentification failure, generates authentification failure flag information.
Further, in one embodiment of the invention, the second vehicle mounted electrical apparatus carries out alarm according to authentification failure flag information.Particularly, in one embodiment of the invention, second vehicle mounted electrical apparatus can display alarm information or send voice message etc., such as " genuine vehicle mounted electrical apparatus please don't be reequiped ", " genuine vehicle mounted electrical apparatus please don't be removed ", reinstall original-pack or genuine vehicle mounted electrical apparatus with reminding user, prevent non-original-pack or genuine vehicle mounted electrical apparatus on the impact of vehicle performance.
Further, in one particular embodiment of the present invention, as shown in Figure 2, the first vehicle mounted electrical apparatus is multimedia system, and the second vehicle mounted electrical apparatus is combination instrument, and the authentication state that goes offline that combination instrument obtains multimedia system can comprise the following steps:
S21, judges whether automobile is that on first time, ON shelves are electric when upper normal electricity.
If so, then enter step S22, if not, then enter step S25, wherein ON shelves are the ON shelves of vehicle ignition switch.
S22, combination instrument judges whether the multimedia message detecting that within 60s multimedia system sends.
If so, then enter step S23, if not, then enter step S24.
S23, combination instrument judges verification succeeds.
After combination instrument judges verification succeeds in step S23, enter step S25.
S24, combination instrument judges to verify unsuccessfully.
Combination instrument judges to verify unsuccessfully in step s 24 which, enters step S25.
S25, terminates.
Further, in one particular embodiment of the present invention, as shown in Figure 3, the first vehicle mounted electrical apparatus is multimedia system, and the second vehicle mounted electrical apparatus is combination instrument, and the accidental enciphering number authentication state that combination instrument obtains multimedia system can comprise the following steps:
S31, when power supply gear is ON shelves, judges whether READY signal to be detected.
If so, then enter step S32, if not, then enter step S36.
S32, timing 10 minutes 3 seconds.
S33, judges whether timing terminates.
If not, then enter step S34, if so, then enter step S311.
S34, judges whether that continuous 2s can't detect READY signal.
If not, then return step S33, if so, then enter step S35.
S35, timing resets.
After timing resets, enter step S31.
S36, when power supply gear is ON shelves, judges whether rotating speed is more than or equal to 1000 revs/min.
If so, then enter step S37, if not, then enter step S322.
S37, timing 10 minutes 3 seconds.
S38, judges whether timing terminates.
If not, then enter step S39, if so, then enter step S311.
S39, judges whether that continuous 2s detects that rotating speed is less than or equal to 300 revs/min.
If not, then return step S38, if so, then enter step S310.
S310, timing resets.
After timing resets, enter step S31.
S311, judges whether automobile speed is more than or equal to 20km/h.
If not, then enter step S312, if so, then enter step S313.
S312, moves back ON shelves electricity.
After moving back ON shelves electricity, enter step S310.
S313, combination instrument sends the first frame check request to multimedia system.
S314, combination instrument judges whether within 500ms, receive verification response.
If so, then enter step S315, if not, then enter step S317.
S315, combination instrument judges whether verification response is correct.
If so, then enter step S316, if not, then enter step S317.
S316, combination instrument judges verification succeeds.
Step S322 is entered after combination instrument judges verification succeeds.
S317, combination instrument sends the second frame check request to multimedia system.
S318, combination instrument judges whether within 500ms, receive verification response.
If so, then enter step S319, if not, then enter step S321.
S319, combination instrument judges whether verification response is correct.
If so, then enter step S320, if not, then enter step S321.
S320, combination instrument judges verification succeeds.
After combination instrument judges verification succeeds in step s 320, enter step S322.
S321, combination instrument judges to verify unsuccessfully.
In step S321, combination instrument judges to verify unsuccessfully, enters step S322.
S322, terminates.
Further, in one particular embodiment of the present invention, as shown in Figure 4, the first vehicle mounted electrical apparatus is multimedia system, and the second vehicle mounted electrical apparatus is combination instrument, and multimedia system sends verification response to combination instrument and can comprise the following steps:
S41, when power supply gear is ON shelves, timing 9 minutes.
S42, judges whether timing terminates.
If not, then enter step S43, if so, then enter step S44.
S43, judges whether to move back ON shelves electricity.
If not, then return step S42, if so, then return step S41.
S44, multimedia system judges whether the check request receiving combination instrument.
If not, then return step S44, if so, then enter step S45.
S45, multimedia system judges whether to send two frame check responses.
If not, then enter step S46, if so, then enter step S47.
S46, multimedia system sends verification response.
After multimedia system sends verification response, enter step S44.
S47, terminates.
Further, in one particular embodiment of the present invention, as shown in Figure 5, first vehicle mounted electrical apparatus is multimedia system, second vehicle mounted electrical apparatus is combination instrument, and after combination instrument obtains the authentication state of multimedia system, the digital certificate method of vehicle mounted electrical apparatus can also comprise the following steps:
S51, when combination instrument judges to verify unsuccessfully, judges whether just in timing.
If not, then enter step S52, if so, then enter step S53.
S52, timing first Preset Time.
Enter step S54.
S53, continues timing.
Enter step S54.
S54, judges whether timing terminates.
If not, then enter step S55, if so, then enter step S57.
S55, combination instrument judges whether verification succeeds.
If not, then return step S54, if so, then enter step S56.
S56, combination instrument sends " verification succeeds " to BCM (BodyControlModule, car body control module), and BCM allows user normally to use automobile.
S57, combination instrument sends " verifying unsuccessfully " and starts to BCM, BCM auto Not Permitted.
S58, when combination instrument judges verification succeeds, combination instrument sends " verification succeeds " and allows user normally to use automobile to BCM, BCM.
The digital certificate method of the vehicle mounted electrical apparatus that the embodiment of the present invention proposes, receive the digital certificate solicited message of the second vehicle mounted electrical apparatus transmission at the first vehicle mounted electrical apparatus after, first vehicle mounted electrical apparatus generates digital certificate return information according to digital certificate solicited message, and digital certificate return information is sent to the second vehicle mounted electrical apparatus, thus the second vehicle mounted electrical apparatus receives digital certificate return information, and the authentication state of the first vehicle mounted electrical apparatus is obtained according to digital certificate solicited message and digital certificate return information, it is last when the authentication state of the first vehicle mounted electrical apparatus is authentification failure, vehicle launch is forbidden after the first Preset Time.The digital certificate method of this vehicle mounted electrical apparatus only allows normally to be used onboard by the original-pack of certification or genuine vehicle mounted electrical apparatus; but not original-pack or genuine vehicle mounted electrical apparatus then can not use onboard; not only protect the performance of car load, simultaneously also for the personal safety as well as the property safety of user provides strong guarantee.
The present invention on the other hand embodiment also proposed a kind of electronic identification system of vehicle mounted electrical apparatus, and as shown in Figure 6, the electronic identification system of this vehicle mounted electrical apparatus comprises: the first vehicle mounted electrical apparatus 10, second vehicle mounted electrical apparatus 20 and controller 30.Wherein, the first vehicle mounted electrical apparatus 10 for receiving digital certificate solicited message, and generates digital certificate return information according to digital certificate solicited message, and sends digital certificate return information.Second vehicle mounted electrical apparatus 20 for generating digital certificate solicited message, and obtains the authentication state of the first vehicle mounted electrical apparatus 10 according to digital certificate solicited message and digital certificate return information.Controller 30, for when the authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure, forbids vehicle launch after the first Preset Time.
Further, in one embodiment of the invention, digital certificate solicited message can comprise first and go offline and detect authentication request information, or second can be comprised go offline and detect authentication request information and accidental enciphering number authentication request information, what digital certificate return information was corresponding can comprise first goes offline and detects certification return information, or can comprise second and go offline and detect certification return information and accidental enciphering number certification return information.Further, in one embodiment of the invention, accidental enciphering number authentication request information can comprise encrypted random number or encrypted random number sequence, wherein, first vehicle mounted electrical apparatus 10 can be decrypted the encrypted random number in accidental enciphering number authentication request information or encrypted random number sequence according to preset-key, and generates accidental enciphering number certification return information according to the encrypted random number after deciphering or encrypted random number sequence.
Further, in one embodiment of the invention, the second vehicle mounted electrical apparatus 20 can comprise: the authentication sub module that goes offline 21 and accidental enciphering number authentication sub module 22.Wherein, the authentication sub module that goes offline 21 detects authentication request information and first and goes offline for going offline according to first and detect the authentication state that goes offline that certification return information obtains the first vehicle mounted electrical apparatus 10.Accidental enciphering number authentication sub module 22 for according to second go offline detect authentication request information, accidental enciphering number authentication request information, second goes offline and detects the accidental enciphering number authentication state that certification return information and accidental enciphering number certification return information obtain the first vehicle mounted electrical apparatus 10.
Further, in one embodiment of the invention, go offline detect certification return information when the second vehicle mounted electrical apparatus 20 does not receive first after the second Preset Time such as 60s, then the authentication sub module that goes offline 21 judges that the authentication state that goes offline of the first vehicle mounted electrical apparatus 10 is authentification failure.Further, in another embodiment of the present invention, go offline detect certification return information and do not receive accidental enciphering number certification return information after the 3rd Preset Time such as 500ms when the second vehicle mounted electrical apparatus 20 receives second within the second Preset Time, or when the accidental enciphering number certification return information that the second vehicle mounted electrical apparatus 20 receives is incorrect, then accidental enciphering number authentication sub module 22 judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure.
Wherein, in one embodiment of the invention, when the encrypted random number after deciphering in accidental enciphering number certification return information and the encrypted random number in accidental enciphering number authentication request information, not meet preset rules such as not identical or do not mate, and when the encrypted random number sequence after deciphering in accidental enciphering number certification return information and the encrypted random number sequence in accidental enciphering number authentication request information do not meet preset rules such as not identical or not mate etc. time, the second vehicle mounted electrical apparatus 20 thinks that the accidental enciphering number certification return information received is incorrect.
It should be noted that, when the authentication state that goes offline of the first vehicle mounted electrical apparatus 10 is authentification failure, illustrate that appearance first vehicle mounted electrical apparatus 10 is removed or communicates between the first vehicle mounted electrical apparatus 10 with the second vehicle mounted electrical apparatus 20 situation such as abnormal.When the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure, illustrate that the first vehicle mounted electrical apparatus 10 is non-original-pack or genuine vehicle mounted electrical apparatus, first vehicle mounted electrical apparatus 10 of authentification failure need be gained vehicle mounted electrical apparatus that is original-pack or genuine by user, and after authentication success, normally can use vehicle.
Particularly, in one embodiment of the invention, go offline detect certification return information when the second vehicle mounted electrical apparatus 20 does not receive first after the second Preset Time, then the second vehicle mounted electrical apparatus 20 judges that the authentication state that goes offline of the first vehicle mounted electrical apparatus 10 is authentification failure, and then second vehicle mounted electrical apparatus 20 after the first Preset Time, do not receive first yet go offline and detect certification return information, then controller 30 can by controlling engine to forbid vehicle launch.
In addition, in one embodiment of the invention, go offline detect certification return information and do not receive accidental enciphering number certification return information after the 3rd Preset Time when the second vehicle mounted electrical apparatus 20 receives second within the second Preset Time, then the second vehicle mounted electrical apparatus 20 judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure, and then second vehicle mounted electrical apparatus 20 after the first Preset Time, do not receive accidental enciphering number certification return information yet, then controller 30 can by control engine to forbid vehicle launch.
In addition, in one embodiment of the invention, when the accidental enciphering number certification return information that the second vehicle mounted electrical apparatus 20 receives is incorrect, then the second vehicle mounted electrical apparatus 20 judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure, and then second vehicle mounted electrical apparatus 20 when not receiving correct accidental enciphering number certification return information yet after the first Preset Time, then controller 30 can by controlling engine to forbid vehicle launch.
Further, in one embodiment of the invention, when the second vehicle mounted electrical apparatus 20 receive within the second Preset Time second go offline detect certification return information and do not receive after the 3rd Preset Time accidental enciphering number certification return information or the accidental enciphering number certification return information that receives within the 3rd Preset Time incorrect time, second vehicle mounted electrical apparatus 20 sends digital certificate solicited message again, and do not receive after the 4th Preset Time such as 500ms accidental enciphering number certification return information or the accidental enciphering number certification return information that receives within the 4th Preset Time incorrect time, then the second vehicle mounted electrical apparatus 20 judges that the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure, and then second vehicle mounted electrical apparatus 20 when not receiving correct accidental enciphering number certification return information yet after the first Preset Time, then controller 30 can by controlling engine to forbid vehicle launch.
In sum, only have the authentication state that goes offline when the first vehicle mounted electrical apparatus 10 to be authentication success and the accidental enciphering number authentication state of the first vehicle mounted electrical apparatus 10 is authentication success time, second vehicle mounted electrical apparatus 20 just can judge that the authentication state of the first vehicle mounted electrical apparatus 10 is authentication success, namely the second vehicle mounted electrical apparatus 20 judges that the first vehicle mounted electrical apparatus 10 is as original-pack or genuine vehicle mounted electrical apparatus, and then controller 30 allows user normally to use vehicle.
Further, in one embodiment of the invention, controller 30, also for when the authentication state of the first vehicle mounted electrical apparatus 10 is authentification failure, generates authentification failure flag information.
Further, in one embodiment of the invention, the second vehicle mounted electrical apparatus 20 is also for carrying out alarm according to authentification failure flag information.Particularly, in one embodiment of the invention, second vehicle mounted electrical apparatus 20 can display alarm information or send voice message etc., such as " genuine vehicle mounted electrical apparatus please don't be reequiped ", " genuine vehicle mounted electrical apparatus please don't be removed ", reinstall original-pack or genuine vehicle mounted electrical apparatus with reminding user, prevent non-original-pack or genuine vehicle mounted electrical apparatus on the impact of vehicle performance.
Further, in one embodiment of the invention, as shown in Figure 7, the first vehicle mounted electrical apparatus 10 can be multimedia system, and the second vehicle mounted electrical apparatus 20 can be combination instrument, and controller 30 can be BCM.Particularly, in one embodiment of the invention, as shown in Figure 7, in vehicle, the authentication state etc. of the information such as digital certificate solicited message of variant speed, digital certificate return information and the first vehicle mounted electrical apparatus 10 can be transmitted by CAN, and can be forwarded by gateway, to realize proper communication between each vehicle mounted electrical apparatus in vehicle.
The electronic identification system of the vehicle mounted electrical apparatus that the embodiment of the present invention proposes, digital certificate solicited message is received by the first vehicle mounted electrical apparatus, and generate digital certificate return information according to digital certificate solicited message, and send digital certificate return information, and generate digital certificate solicited message by the second vehicle mounted electrical apparatus, and the authentication state of the first vehicle mounted electrical apparatus is obtained according to digital certificate solicited message and digital certificate return information, thus controller is when the authentication state of the first vehicle mounted electrical apparatus is authentification failure, forbids vehicle launch after the first Preset Time.The electronic identification system of this vehicle mounted electrical apparatus only allows normally to be used onboard by the original-pack of certification or genuine vehicle mounted electrical apparatus; but not original-pack or genuine vehicle mounted electrical apparatus then can not use onboard; not only protect the performance of car load, simultaneously also for the personal safety as well as the property safety of user provides strong guarantee.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasablely edit read-only memory (EPROM or flash memory), fiber device, and portable optic disk read-only memory (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (16)
1. an electronic identification system for vehicle mounted electrical apparatus, is characterized in that, comprises the first vehicle mounted electrical apparatus, the second vehicle mounted electrical apparatus and controller, wherein,
Described first vehicle mounted electrical apparatus, for receiving digital certificate solicited message, and generates digital certificate return information according to described digital certificate solicited message, and sends described digital certificate return information;
Described second vehicle mounted electrical apparatus, for generating described digital certificate solicited message, and obtains the authentication state of described first vehicle mounted electrical apparatus according to described digital certificate solicited message and described digital certificate return information; And
Described controller, for when the authentication state of described first vehicle mounted electrical apparatus is authentification failure, forbids vehicle launch after the first Preset Time.
2. electronic identification system as claimed in claim 1, it is characterized in that, described digital certificate solicited message comprises first and goes offline and detect authentication request information, or comprise second to go offline and detect authentication request information and accidental enciphering number authentication request information, what described digital certificate return information was corresponding comprise first goes offline and detects certification return information, or comprises second and go offline and detect certification return information and accidental enciphering number certification return information.
3. electronic identification system as claimed in claim 2, it is characterized in that, described accidental enciphering number authentication request information comprises encrypted random number or encrypted random number sequence, wherein, described first vehicle mounted electrical apparatus is decrypted the described encrypted random number in described accidental enciphering number authentication request information or described encrypted random number sequence according to preset-key, and generates described accidental enciphering number certification return information according to the encrypted random number after deciphering or encrypted random number sequence.
4. electronic identification system as claimed in claim 3, it is characterized in that, described second vehicle mounted electrical apparatus comprises:
Go offline authentication sub module, detects authentication request information and described first and go offline for going offline according to described first and detect the authentication state that goes offline that certification return information obtains described first vehicle mounted electrical apparatus; And
Accidental enciphering number authentication sub module, for according to described second go offline detect authentication request information, described accidental enciphering number authentication request information, described second goes offline and detects the accidental enciphering number authentication state that certification return information and described accidental enciphering number certification return information obtain described first vehicle mounted electrical apparatus.
5. electronic identification system as claimed in claim 4, is characterized in that, wherein,
Go offline detect certification return information when described second vehicle mounted electrical apparatus does not receive described first after the second Preset Time, then the authentication sub module that goes offline described in judges that the authentication state that goes offline of described first vehicle mounted electrical apparatus is authentification failure; And
Go offline detect certification return information and do not receive described accidental enciphering number certification return information after the 3rd Preset Time when described second vehicle mounted electrical apparatus receives described second within described second Preset Time, or when the described accidental enciphering number certification return information that described second vehicle mounted electrical apparatus receives is incorrect, then described accidental enciphering number authentication sub module judges that the accidental enciphering number authentication state of described first vehicle mounted electrical apparatus is authentification failure.
6. electronic identification system as claimed in claim 1, is characterized in that, described controller, also for when the authentication state of described first vehicle mounted electrical apparatus is authentification failure, generates authentification failure flag information.
7. electronic identification system as claimed in claim 6, it is characterized in that, described second vehicle mounted electrical apparatus is also for carrying out alarm according to described authentification failure flag information.
8. electronic identification system as claimed in claim 1, it is characterized in that, described first vehicle mounted electrical apparatus is multimedia system, and described second vehicle mounted electrical apparatus is combination instrument.
9. a digital certificate method for vehicle mounted electrical apparatus, is characterized in that, comprise the following steps:
First vehicle mounted electrical apparatus receives the digital certificate solicited message that the second vehicle mounted electrical apparatus sends;
Described first vehicle mounted electrical apparatus generates digital certificate return information according to described digital certificate solicited message, and described digital certificate return information is sent to described second vehicle mounted electrical apparatus;
Described second vehicle mounted electrical apparatus receives described digital certificate return information, and obtains the authentication state of described first vehicle mounted electrical apparatus according to described digital certificate solicited message and described digital certificate return information; And
When the authentication state of described first vehicle mounted electrical apparatus is authentification failure, after the first Preset Time, forbid vehicle launch.
10. digital certificate method as claimed in claim 9, it is characterized in that, described digital certificate solicited message comprises first and goes offline and detect authentication request information, or comprise second to go offline and detect authentication request information and accidental enciphering number authentication request information, what described digital certificate return information was corresponding comprise first goes offline and detects certification return information, or comprises second and go offline and detect certification return information and accidental enciphering number certification return information.
11. digital certificate methods as claimed in claim 10, it is characterized in that, described accidental enciphering number authentication request information comprises encrypted random number or encrypted random number sequence, wherein, described first vehicle mounted electrical apparatus is decrypted the described encrypted random number in described accidental enciphering number authentication request information or described encrypted random number sequence according to preset-key, and generates described accidental enciphering number certification return information according to the encrypted random number after deciphering or encrypted random number sequence.
12. digital certificate methods as claimed in claim 11, it is characterized in that, described second vehicle mounted electrical apparatus goes offline according to described first and detects authentication request information and described first and go offline and detect the authentication state that goes offline that certification return information obtains described first vehicle mounted electrical apparatus, and according to described second go offline detect authentication request information, described accidental enciphering number authentication request information, described second goes offline and detects the accidental enciphering number authentication state that certification return information and described accidental enciphering number certification return information obtain described first vehicle mounted electrical apparatus.
13. digital certificate methods as claimed in claim 12, is characterized in that, wherein,
Go offline detect certification return information when described second vehicle mounted electrical apparatus does not receive described first after the second Preset Time, then judge that the authentication state that goes offline of described first vehicle mounted electrical apparatus is authentification failure; And
Go offline detect certification return information and do not receive described accidental enciphering number certification return information after the 3rd Preset Time when described second vehicle mounted electrical apparatus receives described second within described second Preset Time, or when the described accidental enciphering number certification return information that described second vehicle mounted electrical apparatus receives is incorrect, then judge that the accidental enciphering number authentication state of described first vehicle mounted electrical apparatus is authentification failure.
14. digital certificate methods as claimed in claim 9, is characterized in that, further comprising the steps of:
When the authentication state of described first vehicle mounted electrical apparatus is authentification failure, generate authentification failure flag information.
15. digital certificate methods as claimed in claim 14, it is characterized in that, described second vehicle mounted electrical apparatus carries out alarm according to described authentification failure flag information.
16. digital certificate methods as claimed in claim 9, it is characterized in that, described first vehicle mounted electrical apparatus is multimedia system, and described second vehicle mounted electrical apparatus is combination instrument.
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