CN106330445A - Vehicle authentication method and device - Google Patents

Vehicle authentication method and device Download PDF

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Publication number
CN106330445A
CN106330445A CN201510347181.XA CN201510347181A CN106330445A CN 106330445 A CN106330445 A CN 106330445A CN 201510347181 A CN201510347181 A CN 201510347181A CN 106330445 A CN106330445 A CN 106330445A
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China
Prior art keywords
vehicle
server
authentication
request
certification
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CN201510347181.XA
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CN106330445B (en
Inventor
林兆骥
彭锦
游世林
朱进国
刘俊强
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ZTE NEW ENERGY AUTOMOBILE Co Ltd
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ZTE NEW ENERGY AUTOMOBILE Co Ltd
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Abstract

The invention discloses a vehicle authentication method. The vehicle authentication method comprises steps that: when detecting an authentication request sent by a vehicle, a first sever forwards the authentication request to a second server corresponding to the vehicle so that the second server carries out vehicle authentication operation according to the received authentication request and returns an authentication result; and the first server receives the authentication result returned by the second server. The invention also discloses a vehicle authentication device. According to the invention, application ranges of authentication servers in a vehicle wireless charging system can be extended.

Description

Vehicle authentication method and device
Technical field
The present invention relates to wireless charging technical field, particularly relate to a kind of vehicle authentication method and device.
Background technology
It is well known that electric automobile is with vehicle power as power, drive wheels travel with motor.Electricity Electrical automobile is due to the advantage such as its energy-saving and environmental protection, noise be little, and its prospect is extensively had an optimistic view of.But, electronic The development of automobile still suffers from a lot of technical problem, and the development of charging technique and the deployment of charging station are them Middle key factor.
At present, the charging technique of electric automobile is divided into wired charging and wireless charging.Charge at automobile wireless In system, there is multiple charging operator.When the vehicle that user drives needs charging, need to sail it into The charging station of the wireless charging operator of signing, after by the authentication of certificate server, by recognizing Vehicle is charged by card server controls wireless charging device.But, the vehicle driven as user sails into During the charging station of the wireless charging operator that it is not contracted, the certificate server of this wireless charging operator is not The authentication operation to vehicle can be completed, and then cause vehicle to charge.In prior art, automobile wireless There is the problem that certificate server range of application is narrower in charging system.
Summary of the invention
A kind of vehicle authentication method of offer and device are provided, it is intended to expand vehicle without The range of application of certificate server in line charging system.
For achieving the above object, the present invention provides a kind of vehicle authentication method, described vehicle authentication method bag Include:
When detecting the certification request that vehicle sends, described certification request is forwarded to institute by first server State the second server that vehicle is corresponding, for described second server according to its certification received ask into The authentication operation of driving, and return authentication result；
Described first server receives the authentication result that described second server returns.
Preferably, described first server receive described second server return authentication result step it After, described vehicle authentication method also includes:
When information is passed through in the certification receiving the return of described second server, described first server sends Charge prompting information is to described vehicle；
When receiving the charge request that described vehicle sends, described first server controls wireless charging and sets Standby be charged vehicle operates.
Preferably, described when detecting the certification request that vehicle sends, first server is by described certification Request is forwarded to the second server that described vehicle is corresponding, receives according to it for described second server Certification request carry out the authentication operation of vehicle, and the step of return authentication result includes:
When detecting the certification request that vehicle sends, described certification request is forwarded to institute by first server State the second server that vehicle is corresponding, in asking according to its certification received for described second server Identification information return authentication request；
When receiving the authentication request that described second server returns, described first server is by described mirror Power request is forwarded to described vehicle, believes according to its authentication request return authentication received for described vehicle Breath；
When receiving the authentication information that described vehicle returns, described first server is by described authentication information It is forwarded to described second server, completes according to its authentication information received for described second server The authentication operation of vehicle, and return authentication result.
Preferably, described when detecting the certification request that vehicle sends, first server is by described certification Request is forwarded to the second server that described vehicle is corresponding, receives according to it for described second server Certification request carry out the authentication operation of vehicle, and the step of return authentication result includes:
When detecting the certification request that vehicle sends, described first server obtains in described certification request Identification information；
Described identification information is entered by described first server with each identification information identified in information database Row comparison；
When described identification information is not mated with each identification information in described identification information database, Described first server according to described identification information described certification request is forwarded to that described vehicle is corresponding the Two servers, carry out the certification behaviour of vehicle for described second server according to its certification received request Make, and return authentication result.
Preferably, described first server is by described identification information and each knowledge identified in information database After the step that other information is compared, described vehicle authentication method also includes:
When there is the occurrence with described identification information matches in identifying information database, described first clothes Business device generates authentication request according to described identification information；
Described authentication request is sent to described vehicle by described first server, for described vehicle according to it The authentication request return authentication information received；
When receiving the authentication information that described vehicle returns, described first server receives according to it Authentication information completes the authentication operation of vehicle.
Additionally, for achieving the above object, the present invention also provides for a kind of vehicle authentication device, and described vehicle is recognized Card device includes:
Authentication module, during for detecting the certification request of vehicle transmission when the first server at its place, Described certification request is forwarded to the second server that described vehicle is corresponding, for described second server root The authentication operation of vehicle, and return authentication result is carried out according to its certification received request；
Receiver module, for receiving the authentication result that described second server returns.
Preferably, described vehicle authentication device also includes:
Reminding module, passes through for receiving the certification of described second server return at described receiver module During information, send charge prompting information to described vehicle；
Charge control module, for when receiving the charge request that described vehicle sends, controls wireless charging Electricity equipment is charged operation to vehicle.
Preferably, described authentication module is additionally operable to when the first server at its place detects what vehicle sent During certification request, described certification request is forwarded to the second server that described vehicle is corresponding, for described Identification information during second server is asked according to its certification received returns authentication request；And connecing When receiving the authentication request that described second server returns, described authentication request is forwarded to described vehicle, The authentication request return authentication information received according to it for described vehicle；And receiving described car During the authentication information returned, described authentication information is forwarded to described second server, for described the Two servers complete the authentication operation of vehicle, and return authentication result according to its authentication information received.
Preferably, described authentication module includes:
Acquiring unit, during for detecting the certification request of vehicle transmission when the first server at its place, Obtain the identification information in described certification request；
Comparing unit, for by the identification information database of described identification information and described first server Each identification information compare；
Authentication ' unit, identifies letter for each in described identification information with described identification information database Breath is when mating, described certification request is forwarded to described vehicle is corresponding according to described identification information the Two servers, carry out the certification behaviour of vehicle for described second server according to its certification received request Make, and return authentication result.
Preferably, described authentication ' unit is additionally operable to exist and described identification information in identifying information database During the occurrence mated, generate authentication request according to described identification information；And described authentication request is sent out Deliver to described vehicle, the authentication request return authentication information received for described vehicle according to it；And When receiving the authentication information that described vehicle returns, complete vehicle according to the authentication information that it receives Authentication operation.
The present invention is by when detecting the certification request that vehicle sends, and first server please by described certification Ask and be forwarded to the second server that described vehicle is corresponding, receive according to it for described second server Certification request carries out the authentication operation of vehicle, and return authentication result；Described first server receives described The authentication result that second server returns.Compared to prior art, the present invention is capable of across wireless charging The vehicle authentication of operator, so effectively expand certificate server in automobile wireless charging system should Use scope.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of vehicle authentication method first embodiment of the present invention；
Fig. 2 is the schematic flow sheet of vehicle authentication method the second embodiment of the present invention；
Fig. 3 is the refinement schematic flow sheet of S10 in Fig. 1；
Fig. 4 is the high-level schematic functional block diagram of vehicle authentication device first embodiment of the present invention；
Fig. 5 is the high-level schematic functional block diagram of vehicle authentication device the second embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit Determine the present invention.
The present invention provides a kind of vehicle authentication method, with reference to Fig. 1, at the of vehicle authentication method of the present invention In one embodiment, this vehicle authentication method comprises the following steps:
S10, when detecting the certification request that vehicle sends, described certification request is turned by first server Send to the second server that described vehicle is corresponding, the certification received for described second server according to it Request carries out the authentication operation of vehicle, and return authentication result；
The vehicle authentication method that the present embodiment provides is mainly used in the wireless charging system of vehicle, based on The vehicle authentication method that the present embodiment provides, user can drive vehicle and sail any wireless charging operator into Charging station, no matter whether this operator is the operator that user contracts, and all can complete the certification to vehicle Operation, and then obtain charging service.
At present, wireless charging system includes that ground system and Vehicular system, described ground system include certification Server, communication service unit, power send control unit, exchange turns direct current component and primary coil (i.e. Charge coil) etc. equipment；Described Vehicular system includes unit, vehicle-mounted rectification mould in battery management system, car The equipment such as block and secondary coil (i.e. electricity reception coil).It should be noted that unit is provided with SIM in car (Subscriber Identity Module, client identification module, also referred to as subscriber identification card) card is inserted Groove, inserts, for user, the SIM that the wireless charging operator contracted by it issues.SIM prestores Authorization data, is used for supplying certificate server to be authenticated vehicle and/or certificate server is recognized by vehicle Card.Communication service unit is generally served as by the wireless charging stake being deployed in charging station, it is possible to by with wireless charging The wireless aps (Access Point, access point) that electricity stake is deployed in together is served as.
Communications service unit and Che Nei unit carry out channel radio based on respective wireless communication module with the other side News, this wireless communication module can use Wi-Fi, bluetooth, ZigBee, infrared, NFC, UWB etc. Short-distance wireless mechanics of communication.Wherein, the operating frequency of Wi-Fi technology is positioned at the ISM of 2.4GHz (Industrial Scientific Medical) frequency range and the ISM band of 5GHz, have an advantage in that: letter Number wide coverage, message transmission rate be high, easily with other kinds of communication network fusion etc..This reality Execute example and preferably employ Wi-Fi module as described wireless communication module.
Communications service unit usual active broadcast signal, when user drive vehicle sail charging station into time, if car Interior unit detects the broadcast singal that Communications service unit sends, then initiate communication to this Communications service unit Connection establishment is asked, and Communications service unit responds the request of this communication connection establishment, and in setting up car, unit is with logical The wireless telecommunications of news service unit connect.In car unit and Communications service unit wireless telecommunications connect based on Connectionless UDP (User Data Protocol, UDP) agreement, its security control agreement is adopted Be DTLS (Datagram Transport Layer Security, packet transport layer security protocol) Agreement.
In car, unit is set up after wireless telecommunications are connected with Communications service unit, and in car, unit is actively to communication Service unit sends certification request；Communications service unit after receiving the certification request that unit in car sends, The certification received request is forwarded to first server.It should be noted that described first server is User currently drives the certificate server that sailed into the charging station of vehicle is corresponding, described first server ownership Wireless charging operator can be the wireless charging operator that user contracts, it is also possible to be that user does not contracts Wireless charging operator.In it will be appreciated by persons skilled in the art that car, unit also can be directly by certification Request sends to described first server, specifically, in car unit and described first server set up based on The communication of TCP (Transmission Control Protocol, the transmission control protocol) agreement connected connects, Its security protocol uses TLS (Transport Layer Security, Transport Layer Security) agreement.
In the present embodiment, when detecting the certification request that vehicle sends, first server is by described certification Request is forwarded to the second server that described vehicle is corresponding, receives according to it for described second server Certification request carry out the authentication operation of vehicle, and return authentication result.Wherein, described second server It it is the certificate server of the wireless charging operator that the user that vehicle belongs to is contracted；Unit (vehicle) in car When sending certification request, it is preferred to use IMSI (the International Mobile of its SIM inserted Subscriber Identification Number, international mobile subscriber identity) number conduct identification information, and Described IMSI is added in asking to certification.
It will be appreciated by those skilled in the art that and be, also can use the ICCID (Integrate of described SIM Circuit card identity, integrated circuit card identification code) or cell-phone number conduct corresponding to described SIM Identification information.
It should be noted that arbitrarily certificate server all stores its ownership wireless charging operator signing The identification information (IMSI) of all users and corresponding authorization data, this IMSI and authorization data with issue Issue the IMSI in the SIM of user consistent with authorization data.IMSI is the decimal number of 15, It includes MCC (Mobile Country Code, Mobile Country Code MCC), MNC (Mobile Network Code, mobile network code) and MSIN (Mobile Subscriber Identification Number, shifting Dynamic user identification number) three parts.Wherein, the resource of MCC is by ITU (International Telecommunication Union, International Telecommunication Union) distribute unitedly in worldwide and manage, Uniquely identifying the country belonging to user, totally 3, such as, China is 460；MNC is used for identifying user The wireless charging operator belonged to, 2～3, such as, wireless charging operator A uses 00,02 With 07, wireless charging operator B use 01 and 06, wireless charging operator C use 03 and 05, Wireless charging operator D uses 20；MSIN is used for identifying the isolated user that wireless charging operator contracts, Generally 10.In the present embodiment, described first server is according to the MNC field in described IMSI Described certification request is forwarded to second server corresponding to described vehicle, and (user of vehicle ownership is contracted The certificate server of wireless charging operator), for described second server according to recognizing that it receives The authentication operation that card request carries out vehicle is (corresponding with described IMSI according to the IMSI that certification request is carried Authorization data is authenticated), described second server is after completing the authentication operation of vehicle, to described One server return authentication result.
S20, described first server receives the authentication result that described second server returns.
In the present embodiment, described first server receives the authentication result that described second server returns, When described first server receives the authentication result that described second server returns, complete across wireless charging The vehicle authentication of operator.Described first server can also be that user carries according to its authentication result received For corresponding service, such as, the vehicle for user provides charging service.
Further, it is respectively belonging to different nothings due to described first server and described second server Line charging operator, the data interaction between described first server and described second server is based on interconnection Net realizes.It will be appreciated by persons skilled in the art that at described first server and described second service When device carries out data interaction, interactive information therebetween is easily intercepted by a third party, and causes the damage of user Lose.In view of this, in the present embodiment, described first server and described second server are carrying out data Time mutual, interactive information therebetween is encrypted.RSA Algorithm, Elgamal can be used The rivest, shamir, adelmans such as algorithm, knapsack algorithm, Rabin, D-H algorithm, ECC algorithm, or DES Algorithm, 3DES algorithm, TDEA algorithm, Blowfish algorithm, RC5 algorithm, IDEA algorithm etc. is right Claim at least one AES in AES that described interactive information is encrypted.Below to use The encryption of RSA Algorithm is described in detail:
RSA Algorithm is to be studied widest rivest, shamir, adelman, from proposing to more than 30 now Nian Li, experienced by the test of various attack, gradually accepts for people, be widely considered to be the most classic One of asymmetrical encryption approach.In the present embodiment, described first server generate pair of secret keys: PKI and Private key, and described PKI is sent to described second server, send data at described second server Before described first server, described second server uses the described PKI and RSA Algorithm pair received Data to be sent are encrypted, and the data after encryption are sent to described second server, and described the Data after two servers receive the data after described encryption, after using described private key to decipher described encryption. In like manner, described second server also generates pair of secret keys, and PKI therein is for for described first server Being encrypted the data being sent to described second server, here is omitted for its detailed embodiment.
The vehicle authentication method that the embodiment of the present invention proposes, when detecting the certification request that vehicle sends, Described certification request is forwarded to the second server that described vehicle is corresponding by first server, for described the Two servers carry out the authentication operation of vehicle, and return authentication result according to its certification received request； Described first server receives the authentication result that described second server returns.Compared to prior art, this The vehicle authentication that invention is capable of across wireless charging operator, and then effectively expand automobile wireless and fill The range of application of certificate server in electricity system.
Additionally, be the safety promoting automobile wireless charging system, it is also possible to Communications service unit is carried out Certification.Specifically, Communications service unit is also equipped with SIM card slot, for inserting the wireless of its ownership The SIM that charging operator is issued.Such as, wireless charging stake is as Communications service unit, wireless charging Electricity stake after the power-up, automatically sends certification and asks the certificate server to its wireless charging operator belonged to, Wireless charging stake is authenticated, with really according to IMSI and the authorization data of storage by this certificate server Protecting this wireless charging stake is legal wireless charging stake.
Further, based on first embodiment, the second embodiment of vehicle authentication method of the present invention is proposed, With reference to Fig. 2, in the present embodiment, after above-mentioned steps S20, described vehicle authentication method also includes:
S30, when information is passed through in the certification receiving the return of described second server, described first service Device sends charge prompting information to described vehicle；
It should be noted that described second server please in the certification receiving the forwarding of described first server After asking, carry out the authentication operation of vehicle, if certification is passed through, described second service according to described certification request Device sends certification to described first server and passes through information；If authentification failure, described second server is to institute State first server and send authentication failure message.
In the present embodiment, when receiving certification that described second server returns by information, described the One server sends charge prompting information to described vehicle.Specifically, described first server is receiving When the certification that described second server returns is by information, generate charge prompting information, described charge prompting Information can be charging package information；The charging package information generated is sent to car by described first server Car in unit, be shown to user for it, by user select need charging set meal.
S40, when receiving the charge request that described vehicle sends, described first server controls wireless Charger is charged operation to vehicle.
In the present embodiment, the charging set meal (charge request) that in described car, user is selected by unit is back to Described first server；When receiving the charging set meal that the user that in described car, unit returns selects, institute State first server control wireless charging stake (wireless charging device) and vehicle is charged operation.Such as, User have selected the charging set meal that price is 30 yuan, and the most described first server controls wireless charging stake for using The vehicle at family provides the electricity that this charging set meal is corresponding.The present embodiment is realizing across wireless charging operator On the basis of vehicle authentication, achieve the vehicle charging across wireless charging operator further, carry for user Supply facility.
Additionally, described second server can also complete the authentication operation to vehicle, and when certification is passed through, By described first server in car unit send authorization requests (charge prompting information, the most optional Charging package information), be shown to user for unit in car, by user select need charging set meal； The described second server user that unit returns in receiving car authorizes (charge request, filling of user's selection Electricity set meal) time, according to user's mandate, authentication result and the user property generation access credentials prestored, And use private key based on default signature algorithm, described access credentials to be signed, with ensure its credible and Non repudiation；The access credentials generated is sent to described first server by described second server；Institute State first server based on the certificate issued by described second server the prestored access credentials to receiving Verifying, if being verified, then parsing user's mandate and user property that described access credentials is carried, And authorize with user property to the vehicle offer charging service of user according to described user, i.e. select according to user Charging set meal and the user property selected provide charging service to the vehicle of user.
Further, based on first embodiment, the 3rd embodiment of vehicle authentication method of the present invention is proposed, With reference to Fig. 3, in the present embodiment, above-mentioned steps S10 includes:
S101, when detecting the certification request that vehicle sends, described certification request is turned by first server Send to the second server that described vehicle is corresponding, the certification received for described second server according to it Identification information in request returns authentication request；
In the present embodiment, described second server is receiving the certification request that described first server forwards After, obtain the IMSI carried in described certification request, and obtain one or more groups AV according to described IMSI (Authentication Vector, Ciphering Key).Wherein, AV is a tlv triple, including RAND (Random Challenge, random number), AUTN (Authentication Token, authentication token) With XRES (Expected Response, it is contemplated that response value), RAND is that second server is given birth at random Become and be used for being supplied to the unpredictable random number of unit, a length of 16 bytes in car；AUTN It is that described second server is based on described IMSI and the authorization data corresponding with described IMSI of storage Being calculated by the first preset algorithm, be used for supplying information to unit in car, in making car, unit can use it Described second server is authenticated, a length of 17 bytes；XRES is described second server The authorization data corresponding with described IMSI based on RAND and storage passes through the second preset algorithm meter Calculate, be unit authentication response parameter in the desired car of described second server.
Described second server takes RAND and AUTN in one group of AV therein, as authentication request (User Authentication Request, also referred to as subscription authentication request) returns to described first server.
S102, when receiving the authentication request that described second server returns, described first server will Described authentication request is forwarded to described vehicle, returns according to its authentication request received for described vehicle Authentication information；
In the present embodiment, in car, unit (vehicle) please in the authentication receiving the forwarding of described first server After asking, first extract the AUTN in authentication request, in car unit based on its authorization data prestored with And described IMSI is calculated by described first preset algorithm, if result of calculation is with described AUTN not With, illustrate that described second server is illegal certificate server；If described result of calculation and described AUTN Identical, illustrate that described second server is legal certificate server, in car, unit is based in authentication request RAND and the authorization data that prestores calculate RES (User by described second preset algorithm Authentication Response, also referred to as subscription authentication response), and using the RES calculated as recognizing Card information is back to described first server.
S103, when receiving the authentication information that described vehicle returns, described first server is recognized described Card information is forwarded to described second server, believes according to its certification received for described second server The authentication operation of vehicle, and return authentication result are ceased.
In the present embodiment, described second server is receiving the authentication information that described first server forwards (RES) after, by contrasting the XRES oneself calculated and the RES received with to unit (car in car ) be authenticated；If identical, certification is passed through；If it is different, then authentification failure.Described second server exists After completing the authentication operation to vehicle, to described first server return authentication result.The present embodiment is in reality Now on the basis of the vehicle authentication of wireless charging operator, by carrying out between vehicle and certificate server Two-way authentication, it is possible to promote the safety effectively promoting certification, it is to avoid cause the property loss of user.
Further, based on first, second or the 3rd embodiment, vehicle authentication method of the present invention is proposed 4th embodiment, in the present embodiment, above-mentioned steps S20 includes:
When detecting the certification request that vehicle sends, described first server obtains in described certification request Identification information；
Described identification information is entered by described first server with each identification information identified in information database Row comparison；
It should be noted that storage has what this wireless charging operator contract to own in identification information database The identification information (IMSI) of user and corresponding authorization data, this IMSI and authorization data be presented to IMSI in the SIM of user is consistent with authorization data.In the present embodiment, described first server exists After getting the certification identification information carried of request, by each with identification information database of this identification information Individual identification information is compared, if there is occurrence, then illustrates that vehicle corresponding to this identification information is this nothing The vehicle of line charging operator contracted user；If there is not occurrence, illustrate that this identification information is corresponding Vehicle is the vehicle of the non-contracted user of this wireless charging operator.Such as, described first server is obtaining After the IMSI that certification request is carried, this IMSI is entered with each IMSI identified in information database Row comparison, when this IMSI all differs with each IMSI identified in information database, identifies this IMSI Corresponding vehicle is the vehicle of the non-contracted user of this wireless charging operator.
When described identification information is not mated with each identification information in described identification information database, Described first server according to described identification information described certification request is forwarded to that described vehicle is corresponding the Two servers, carry out the certification behaviour of vehicle for described second server according to its certification received request Make, and return authentication result.
In the present embodiment, when described IMSI does not mates with each IMSI identified in information database, Illustrate that vehicle corresponding for described IMSI is the vehicle of the non-contracted user of this wireless charging operator.Easily reason Solve, have this wireless charging owing to the identification information database that described first server is local only storing The identification information (IMSI) of all users of operator's signing and corresponding authorization data, now, described Described certification is asked to be forwarded to the second clothes that described vehicle is corresponding by first server according to described identification information Business device, carries out the authentication operation of vehicle for described second server according to its certification received request. Wherein, the wireless charging operator that the user of described second server the most described vehicle ownership is contracted is recognized Card server.Specifically, described first server please by described certification according to the MNC field in IMSI Ask and be forwarded to the second server that described vehicle is corresponding, carry out receiving according to it for described second server To the authentication operation (being authenticated according to IMSI and corresponding authorization data) of certification request vehicle, Described second server is after completing the authentication operation of vehicle, to described first server return authentication result.
It will be appreciated by persons skilled in the art that described first server also can be directly according in IMSI MNC field determine that whether described vehicle is the vehicle of this wireless charging operator contracted user.
Further, based on the 4th embodiment, the 5th embodiment of vehicle authentication method of the present invention is proposed, In the present embodiment, described first server is by each in described identification information and identification information database After the step that identification information is compared, described vehicle authentication method also includes:
When there is the occurrence with described identification information matches in identifying information database, described first clothes Business device generates authentication request according to described identification information；
In the present embodiment, in identifying information database, existence is mated with described identification information (IMSI) During occurrence, vehicle described in described first server identification is the car of this wireless charging operator contracted user ?；Described first server obtains one or more groups AV (Authentication according to described IMSI Vector, Ciphering Key).Wherein, AV is a tlv triple, including RAND (Random Challenge, Random number), AUTN (Authentication Token, authentication token) and XRES (Expected Response, it is contemplated that response value), RAND is first server stochastic generation in being supplied to car The unpredictable random number of unit (vehicle), a length of 16 bytes；AUTN is described first The server authorization data corresponding with described IMSI based on described IMSI and storage is pre-by the 3rd Imputation method calculates, and is used for supplying information to unit in car, makes in car unit can come described the with it One server is authenticated, a length of 17 bytes；XRES is that described first server is based on RAND And the authorization data corresponding with described IMSI of storage is by the 4th preset algorithm calculating, is institute State unit authentication response parameter in the desired car of first server.
Described first server takes RAND and AUTN in one group of AV therein, as authentication request (User Authentication Request, also referred to as subscription authentication request) is sent to unit in described car.
Described authentication request is sent to described vehicle by described first server, for described vehicle according to it The authentication request return authentication information received；
In car, unit is after receiving the authentication request that described first server sends, and first extracts authentication AUTN in request, authorization data and described IMSI that in car, unit prestores based on it pass through described 3rd preset algorithm calculates, if result of calculation is different from described AUTN, described first service is described Device is illegal certificate server；If described result of calculation is identical with described AUTN, illustrate described first Server is legal certificate server, and in car, unit based on RAND in authentication request and prestores Authorization data by described 4th preset algorithm calculate RES (User Authentication Response, also It is referred to as subscription authentication response), and the RES calculated is back to described first service as authentication information Device.
When receiving the authentication information that described vehicle returns, described first server receives according to it Authentication information completes the authentication operation of vehicle.
Described first server is after receiving the RES that in described car, unit sends, by contrasting oneself meter The XRES calculated and the RES received is to be authenticated unit in car (vehicle)；If identical, certification Pass through；If it is different, then authentification failure.
The present invention also provides for a kind of vehicle authentication device, with reference to Fig. 4, at vehicle authentication device of the present invention In first embodiment, described vehicle authentication device includes:
Authentication module 10, for detecting, when the first server at its place, the certification request that vehicle sends Time, described certification request is forwarded to the second server that described vehicle is corresponding, for described second service Device carries out the authentication operation of vehicle, and return authentication result according to its certification received request；
The vehicle authentication device that the present embodiment provides is mainly used in the wireless charging system of vehicle, based on The vehicle authentication device that the present embodiment provides, user can drive vehicle and sail any wireless charging operator into Charging station, no matter whether this operator is the operator that user contracts, and all can complete the certification to vehicle Operation, and then obtain charging service.
At present, wireless charging system includes that ground system and Vehicular system, described ground system include certification Server, communication service unit, power send control unit, exchange turns direct current component and primary coil (i.e. Charge coil) etc. equipment；Described Vehicular system includes unit, vehicle-mounted rectification mould in battery management system, car The equipment such as block and secondary coil (i.e. electricity reception coil).It should be noted that unit is provided with SIM in car (Subscriber Identity Module, client identification module, also referred to as subscriber identification card) card is inserted Groove, inserts, for user, the SIM that the wireless charging operator contracted by it issues.SIM prestores Authorization data, is used for supplying certificate server to be authenticated vehicle and/or certificate server is recognized by vehicle Card.Communication service unit is generally served as by the wireless charging stake being deployed in charging station, it is possible to by with wireless charging The wireless aps (Access Point, access point) that electricity stake is deployed in together is served as.
Communications service unit and Che Nei unit carry out channel radio based on respective wireless communication module with the other side News, this wireless communication module can use Wi-Fi, bluetooth, ZigBee, infrared, NFC, UWB etc. Short-distance wireless mechanics of communication.Wherein, the operating frequency of Wi-Fi technology is positioned at the ISM of 2.4GHz (Industrial Scientific Medical) frequency range and the ISM band of 5GHz, have an advantage in that: letter Number wide coverage, message transmission rate be high, easily with other kinds of communication network fusion etc..This reality Execute example and preferably employ Wi-Fi module as described wireless communication module.
Communications service unit usual active broadcast signal, when user drive vehicle sail charging station into time, if car Interior unit detects the broadcast singal that Communications service unit sends, then initiate communication to this Communications service unit Connection establishment is asked, and Communications service unit responds the request of this communication connection establishment, and in setting up car, unit is with logical The wireless telecommunications of news service unit connect.In car unit and Communications service unit wireless telecommunications connect based on Connectionless UDP (User Data Protocol, UDP) agreement, its security control agreement is adopted Be DTLS (Datagram Transport Layer Security, packet transport layer security protocol) Agreement.
In car, unit is set up after wireless telecommunications are connected with Communications service unit, and in car, unit is actively to communication Service unit sends certification request；Communications service unit after receiving the certification request that unit in car sends, The certification received request is forwarded to first server.It should be noted that described first server is User currently drives the certificate server that sailed into the charging station of vehicle is corresponding, described first server ownership Wireless charging operator can be the wireless charging operator that user contracts, it is also possible to be that user does not contracts Wireless charging operator.In it will be appreciated by persons skilled in the art that car, unit also can be directly by certification Request sends to described first server, specifically, in car unit and described first server set up based on The communication of TCP (Transmission Control Protocol, the transmission control protocol) agreement connected connects, Its security protocol uses TLS (Transport Layer Security, Transport Layer Security) agreement.
In the present embodiment, described authentication module 10, for detecting vehicle when the first server at its place During the certification request sent, described certification request is forwarded to the second server that described vehicle is corresponding, with Carry out the authentication operation of vehicle for described second server according to its certification received request, and return is recognized Card result.Wherein, the vehicle authentication device that the present invention provides runs based on first server, and described second Server is the certificate server of the wireless charging operator that the user that vehicle belongs to is contracted；Unit in car (vehicle) is when sending certification request, it is preferred to use the IMSI (International of its SIM inserted Mobile Subscriber Identification Number, international mobile subscriber identity) number conduct identification Information, and described IMSI is added to certification request.
It will be appreciated by those skilled in the art that and be, also can use the ICCID (Integrate of described SIM Circuit card identity, integrated circuit card identification code) or cell-phone number conduct corresponding to described SIM Identification information.
It should be noted that arbitrarily certificate server all stores its ownership wireless charging operator signing The identification information (IMSI) of all users and corresponding authorization data, this IMSI and authorization data with issue Issue the IMSI in the SIM of user consistent with authorization data.IMSI is the decimal number of 15, It includes MCC (Mobile Country Code, Mobile Country Code MCC), MNC (Mobile Network Code, mobile network code) and MSIN (Mobile Subscriber Identification Number, shifting Dynamic user identification number) three parts.Wherein, the resource of MCC is by ITU (International Telecommunication Union, International Telecommunication Union) distribute unitedly in worldwide and manage, Uniquely identifying the country belonging to user, totally 3, such as, China is 460；MNC is used for identifying user The wireless charging operator belonged to, 2～3, such as, wireless charging operator A uses 00,02 With 07, wireless charging operator B use 01 and 06, wireless charging operator C use 03 and 05, Wireless charging operator D uses 20；MSIN is used for identifying the isolated user that wireless charging operator contracts, Generally 10.In the present embodiment, described first server is according to the MNC field in described IMSI Described certification request is forwarded to second server corresponding to described vehicle, and (user of vehicle ownership is contracted The certificate server of wireless charging operator), for described second server according to recognizing that it receives The authentication operation that card request carries out vehicle is (corresponding with described IMSI according to the IMSI that certification request is carried Authorization data is authenticated), described second server is after completing the authentication operation of vehicle, to receiving mould Block 20 return authentication result.
Receiver module 20, for receiving the authentication result that described second server returns
Described receiver module 20 receives the authentication result that described second server returns, at described receiver module During the authentication result that 20 receive the return of described second server, complete the vehicle across wireless charging operator Certification.The most also can provide the user corresponding service according to authentication result, such as, for user's Vehicle provides charging service.
Further, it is respectively belonging to different nothings due to described first server and described second server Line charging operator, the data interaction between described first server and described second server is based on interconnection Net realizes.It will be appreciated by persons skilled in the art that at described first server and described second service When device carries out data interaction, interactive information therebetween is easily intercepted by a third party, and causes the damage of user Lose.In view of this, in the present embodiment, described first server and described second server are carrying out data Time mutual, interactive information therebetween is encrypted.RSA Algorithm, Elgamal can be used The rivest, shamir, adelmans such as algorithm, knapsack algorithm, Rabin, D-H algorithm, ECC algorithm, or DES Algorithm, 3DES algorithm, TDEA algorithm, Blowfish algorithm, RC5 algorithm, IDEA algorithm etc. is right Claim at least one AES in AES that described interactive information is encrypted.Below to use The encryption of RSA Algorithm is described in detail:
RSA Algorithm is to be studied widest rivest, shamir, adelman, from proposing to more than 30 now Nian Li, experienced by the test of various attack, gradually accepts for people, be widely considered to be the most classic One of asymmetrical encryption approach.In the present embodiment, described first server generate pair of secret keys: PKI and Private key, and described PKI is sent to described second server, send data at described second server Before described first server, described second server uses the described PKI and RSA Algorithm pair received Data to be sent are encrypted, and the data after encryption are sent to described second server, and described the Data after two servers receive the data after described encryption, after using described private key to decipher described encryption. In like manner, described second server also generates pair of secret keys, and PKI therein is for for described first server Being encrypted the data being sent to described second server, here is omitted for its detailed embodiment.
The vehicle authentication device that the embodiment of the present invention proposes, when detecting the certification request that vehicle sends, Described certification request is forwarded to the second server that described vehicle is corresponding by first server, for described the Two servers carry out the authentication operation of vehicle, and return authentication result according to its certification received request； Described first server receives the authentication result that described second server returns.Compared to prior art, this The vehicle authentication that invention is capable of across wireless charging operator, and then effectively expand automobile wireless and fill The range of application of certificate server in electricity system.
Additionally, be the safety promoting automobile wireless charging system, it is also possible to Communications service unit is carried out Certification.Specifically, Communications service unit is also equipped with SIM card slot, for inserting the wireless of its ownership The SIM that charging operator is issued.Such as, wireless charging stake is as Communications service unit, wireless charging Electricity stake after the power-up, automatically sends certification and asks the certificate server to its wireless charging operator belonged to, Wireless charging stake is authenticated, with really according to IMSI and the authorization data of storage by this certificate server Protecting this wireless charging stake is legal wireless charging stake.
Further, based on first embodiment, the second embodiment of vehicle authentication device of the present invention is proposed, With reference to Fig. 5, in the present embodiment, described vehicle authentication device also includes:
Reminding module 30, for receiving recognizing of described second server return at described receiver module 20 When card is by information, send charge prompting information to described vehicle；
It should be noted that described second server please in the certification receiving the forwarding of described authentication module 10 After asking, carry out the authentication operation of vehicle, if certification is passed through, described second service according to described certification request Device sends certification to described receiver module 20 and passes through information；If authentification failure, described second server is to institute State receiver module 20 and send authentication failure message.
In the present embodiment, the certification receiving the return of described second server at described receiver module 20 is passed through During information, described reminding module 30 sends charge prompting information to described vehicle.Specifically, described prompting Module 30 described receiver module 20 receive described second server return certification by information time, Generating charge prompting information, described charge prompting information can be charging package information；Described reminding module 30 by generate charging package information transmission to unit in the car of vehicle, be shown to user for it, by with Family selects the charging set meal needed.
Charge control module 40, for when receiving the charge request that described vehicle sends, controlling wireless Charger is charged operation to vehicle.
In the present embodiment, the charging set meal (charge request) that in described car, user is selected by unit is back to Described charge control module 40；Described charge control module 40 unit in receiving described car returns During the charging set meal that user selects, control wireless charging stake (wireless charging device) and vehicle is charged Operation.Such as, user have selected the charging set meal that price is 30 yuan, the most described charge control module 40 Control the vehicle that wireless charging stake is user and the electricity that this charging set meal is corresponding is provided.The present embodiment is realizing On the basis of the vehicle authentication of wireless charging operator, achieve vehicle further across wireless charging operation The charging of business, has provided the user facility.
Additionally, described second server can also complete the authentication operation to vehicle, and when certification is passed through, By described reminding module 30 in car unit send authorization requests (charge prompting information, the most optional Charging package information), be shown to user for unit in car, by user select need charging set meal； The described second server user that unit returns in receiving car authorizes (charge request, filling of user's selection Electricity set meal) time, according to user's mandate, authentication result and the user property generation access credentials prestored, And use private key based on default signature algorithm, described access credentials to be signed, with ensure its credible and Non repudiation；The access credentials generated is sent to described authentication module 10 by described second server；Institute State authentication module 10 based on the certificate issued by described second server the prestored access to receiving with Card is verified, if being verified, then charge control module 40 parses the use that described access credentials is carried Family authorizes and user property, and authorizes with user property to the vehicle offer charging of user according to described user Service, the charging set meal and the user property that i.e. select according to user provide charging service to the vehicle of user.
Further, based on first embodiment, the 3rd embodiment of vehicle authentication device of the present invention is proposed, In the present embodiment, described authentication module 10 is additionally operable to send out when the first server at its place detects vehicle During the certification request sent, described certification request is forwarded to the second server that described vehicle is corresponding, for Identification information during described second server is asked according to its certification received returns authentication request；And When receiving the authentication request that described second server returns, described authentication request is forwarded to described car , the authentication request return authentication information received according to it for described vehicle；And receiving When stating the authentication information that vehicle returns, described authentication information is forwarded to described second server, for institute State second server and complete the authentication operation of vehicle, and return authentication knot according to its authentication information received Really.
In the present embodiment, described second server is receiving the certification request that described authentication module 10 forwards After, obtain the IMSI carried in described certification request, and obtain one or more groups AV according to described IMSI (Authentication Vector, Ciphering Key).Wherein, AV is a tlv triple, including RAND (Random Challenge, random number), AUTN (Authentication Token, authentication token) With XRES (Expected Response, it is contemplated that response value), RAND is that second server is given birth at random Become and be used for being supplied to the unpredictable random number of unit, a length of 16 bytes in car；AUTN It is that described second server is based on described IMSI and the authorization data corresponding with described IMSI of storage Being calculated by the first preset algorithm, be used for supplying information to unit in car, in making car, unit can use it Described second server is authenticated, a length of 17 bytes；XRES is described second server The authorization data corresponding with described IMSI based on RAND and storage passes through the second preset algorithm meter Calculate, be unit authentication response parameter in the desired car of described second server.
Described second server takes RAND and AUTN in one group of AV therein, as authentication request (User Authentication Request, also referred to as subscription authentication request) returns to described authentication module 10。
In car, unit (vehicle) is after receiving the authentication request that described authentication module 10 forwards, and first carries Take out the AUTN in authentication request, authorization data that in car, unit prestores and described IMSI based on it Calculated by described first preset algorithm, if result of calculation is different from described AUTN, illustrate described Second server is illegal certificate server；If described result of calculation is identical with described AUTN, explanation Described second server is legal certificate server, in car unit based on the RAND in authentication request with And the authorization data prestored calculates RES (User Authentication by described second preset algorithm Response, also referred to as subscription authentication response), and the RES calculated is back to as authentication information Described authentication module 10.
Described second server receive described authentication module 10 forward authentication information (RES) after, By contrasting the XRES oneself calculated and the RES received so that unit in car (vehicle) to be authenticated； If identical, certification is passed through；If it is different, then authentification failure.Described second server completes vehicle After authentication operation, to described receiver module 20 return authentication result.The present embodiment is realizing across wireless charging On the basis of the vehicle authentication of operator, by carrying out the two-way authentication between vehicle and certificate server, energy Enough safeties promoting effectively lifting certification, it is to avoid cause the property loss of user.
Further, based on first, second or the 3rd embodiment, vehicle authentication device of the present invention is proposed 4th embodiment, in the present embodiment, described authentication module 10 includes:
Acquiring unit, during for detecting the certification request of vehicle transmission when the first server at its place, Obtain the identification information in described certification request；
Comparing unit, for by the identification information database of described identification information and described first server Each identification information compare；
It should be noted that storage has what this wireless charging operator contract to own in identification information database The identification information (IMSI) of user and corresponding authorization data, this IMSI and authorization data be presented to IMSI in the SIM of user is consistent with authorization data.In the present embodiment, described comparing unit is obtaining Take after unit gets the certification identification information carried of request, by this identification information with identify information database In each identification information compare, if there is occurrence, then the vehicle that this identification information is corresponding is described It it is the vehicle of this wireless charging operator contracted user；If there is not occurrence, this identification information is described Corresponding vehicle is the vehicle of the non-contracted user of this wireless charging operator.Such as, described comparing unit exists After acquiring unit gets the IMSI that certification request is carried, by this IMSI and identification information database Each IMSI compares, and all differs with each IMSI identified in information database at this IMSI Time, identify that vehicle corresponding for this IMSI is the vehicle of the non-contracted user of this wireless charging operator.
Authentication ' unit, identifies letter for each in described identification information with described identification information database Breath is when mating, described certification request is forwarded to described vehicle is corresponding according to described identification information the Two servers, carry out the certification behaviour of vehicle for described second server according to its certification received request Make, and return authentication result.
In the present embodiment, when described IMSI does not mates with each IMSI identified in information database, Illustrate that vehicle corresponding for described IMSI is the vehicle of the non-contracted user of this wireless charging operator.Easily reason Solve, due to the identification Information Number that described first server (server at authentication ' unit place) is local According in storehouse only storage have the identification information (IMSI) of all users that this wireless charging operator contracts and right The authorization data answered, now, described certification request is forwarded by described authentication ' unit according to described identification information To the second server that described vehicle is corresponding, please according to its certification received for described second server Seek the authentication operation carrying out vehicle.Wherein, the user of described second server the most described vehicle ownership is signed The certificate server of wireless charging operator about.Specifically, described authentication ' unit is according in IMSI Described certification request is forwarded to the second server that described vehicle is corresponding by MNC field, for described the Two servers carry out the authentication operation of vehicle (according to IMSI and correspondence according to its certification received request Authorization data be authenticated), described second server is after completing the authentication operation of vehicle, to described Authentication ' unit return authentication result.
It will be appreciated by persons skilled in the art that described comparing unit also can be directly according in IMSI MNC field determines that whether described vehicle is the vehicle of this wireless charging operator contracted user.
Further, based on the 4th embodiment, the 5th embodiment of vehicle authentication device of the present invention is proposed, In the present embodiment, described authentication ' unit is additionally operable to exist in identifying information database and identifies letter with described During the occurrence that breath mates, generate authentication request according to described identification information；And by described authentication request Send to described vehicle, the authentication request return authentication information received according to it for described vehicle；With And when receiving the authentication information that described vehicle returns, complete vehicle according to the authentication information that it receives Authentication operation.
In the present embodiment, in identifying information database, existence is mated with described identification information (IMSI) During occurrence, vehicle described in described comparing unit identification is the vehicle of this wireless charging operator contracted user； Described authentication ' unit obtains one or more groups AV according to described IMSI, and (Authentication Vector, recognizes Syndrome vector).Wherein, AV is a tlv triple, including RAND (Random Challenge, at random Number), AUTN (Authentication Token, authentication token) and XRES (Expected Response, Anticipated response value), RAND be authentication ' unit stochastic generation and in being supplied to car unit (vehicle) Unpredictable random number, a length of 16 bytes；AUTN is that described authentication ' unit is based on described The authorization data corresponding with described IMSI of IMSI and storage is calculated by the 3rd preset algorithm, Unit in supplying information to car, in making car, unit can come described first server (certification with it The server at unit place) it is authenticated, a length of 17 bytes；XRES is described authentication ' unit base The authorization data corresponding with described IMSI in RAND and storage is calculated by the 4th preset algorithm , it is unit authentication response parameter in the desired car of described authentication ' unit.
Described authentication ' unit takes RAND and AUTN in one group of AV therein, as authentication request (User Authentication Request, also referred to as subscription authentication request) is sent to unit (car in described car ).
In car, unit is after receiving the authentication request that described authentication ' unit sends, and first extracting authentication please AUTN in asking, authorization data that in car, unit prestores based on it and described IMSI are by described the Three preset algorithm calculate, if result of calculation is different from described AUTN, described first server are described It it is illegal certificate server；If described result of calculation is identical with described AUTN, described first clothes are described Business device is legal certificate server, and in car, unit is based on the RAND in authentication request and the mirror that prestores According to calculating RES by described 4th preset algorithm, (User Authentication Response is also referred to as flexible strategy Respond for subscription authentication), and the RES calculated is back to described authentication ' unit as authentication information.
Described authentication ' unit, after receiving the RES that in described car, unit sends, calculates by contrasting oneself XRES and the RES that receives so that unit in car (vehicle) is authenticated；If identical, certification is led to Cross；If it is different, then authentification failure.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.

Claims (10)

1. a vehicle authentication method, it is characterised in that described vehicle authentication method comprises the following steps:
When detecting the certification request that vehicle sends, described certification request is forwarded to institute by first server State the second server that vehicle is corresponding, for described second server according to its certification received ask into The authentication operation of driving, and return authentication result；
Described first server receives the authentication result that described second server returns.
2. vehicle authentication method as claimed in claim 1, it is characterised in that described first server connects After receiving the step of the authentication result that described second server returns, described vehicle authentication method also includes:
When information is passed through in the certification receiving the return of described second server, described first server sends Charge prompting information is to described vehicle；
When receiving the charge request that described vehicle sends, described first server controls wireless charging and sets Standby be charged vehicle operates.
3. vehicle authentication method as claimed in claim 1, it is characterised in that described detecting vehicle During the certification request sent, described certification request is forwarded to second that described vehicle is corresponding by first server Server, carries out the authentication operation of vehicle for described second server according to its certification received request, And the step of return authentication result includes:
When detecting the certification request that vehicle sends, described certification request is forwarded to institute by first server State the second server that vehicle is corresponding, in asking according to its certification received for described second server Identification information return authentication request；
When receiving the authentication request that described second server returns, described first server is by described mirror Power request is forwarded to described vehicle, believes according to its authentication request return authentication received for described vehicle Breath；
When receiving the authentication information that described vehicle returns, described first server is by described authentication information It is forwarded to described second server, completes according to its authentication information received for described second server The authentication operation of vehicle, and return authentication result.
4. the vehicle authentication method as described in any one of claim 1-3, it is characterised in that described detecing When measuring the certification request that vehicle sends, described certification request is forwarded to described vehicle pair by first server The second server answered, carries out vehicle for described second server according to its certification received request Authentication operation, and the step of return authentication result includes:
When detecting the certification request that vehicle sends, described first server obtains in described certification request Identification information；
Described identification information is entered by described first server with each identification information identified in information database Row comparison；
When described identification information is not mated with each identification information in described identification information database, Described first server according to described identification information described certification request is forwarded to that described vehicle is corresponding the Two servers, carry out the certification behaviour of vehicle for described second server according to its certification received request Make, and return authentication result.
5. vehicle authentication method as claimed in claim 4, it is characterised in that described first server will After the step that described identification information and each identification information identified in information database are compared, institute State vehicle authentication method also to include:
When there is the occurrence with described identification information matches in identifying information database, described first clothes Business device generates authentication request according to described identification information；
Described authentication request is sent to described vehicle by described first server, for described vehicle according to it The authentication request return authentication information received；
When receiving the authentication information that described vehicle returns, described first server receives according to it Authentication information completes the authentication operation of vehicle.
6. a vehicle authentication device, it is characterised in that described vehicle authentication device includes:
Authentication module, during for detecting the certification request of vehicle transmission when the first server at its place, Described certification request is forwarded to the second server that described vehicle is corresponding, for described second server root The authentication operation of vehicle, and return authentication result is carried out according to its certification received request；
Receiver module, for receiving the authentication result that described second server returns.
7. vehicle authentication device as claimed in claim 6, it is characterised in that described vehicle authentication device Also include:
Reminding module, passes through for receiving the certification of described second server return at described receiver module During information, send charge prompting information to described vehicle；
Charge control module, for when receiving the charge request that described vehicle sends, controls wireless charging Electricity equipment is charged operation to vehicle.
8. vehicle authentication device as claimed in claim 6, it is characterised in that described authentication module is also used In time detecting, when the first server at its place, the certification request that vehicle sends, described certification request is turned Send to the second server that described vehicle is corresponding, the certification received for described second server according to it Identification information in request returns authentication request；And receiving the authentication that described second server returns During request, described authentication request is forwarded to described vehicle, the mirror received for described vehicle according to it Power request return authentication information；And when receiving the authentication information that described vehicle returns, recognize described Card information is forwarded to described second server, believes according to its certification received for described second server The authentication operation of vehicle, and return authentication result are ceased.
9. the vehicle authentication device as described in any one of claim 6-8, it is characterised in that described certification Module includes:
Acquiring unit, during for detecting the certification request of vehicle transmission when the first server at its place, Obtain the identification information in described certification request；
Comparing unit, for by the identification information database of described identification information and described first server Each identification information compare；
Authentication ' unit, identifies letter for each in described identification information with described identification information database Breath is when mating, described certification request is forwarded to described vehicle is corresponding according to described identification information the Two servers, carry out the certification behaviour of vehicle for described second server according to its certification received request Make, and return authentication result.
10. vehicle authentication device as claimed in claim 9, it is characterised in that described authentication ' unit is also During for there is the occurrence with described identification information matches in identifying information database, according to described knowledge Other information generates authentication request；And described authentication request is sent to described vehicle, for described vehicle The authentication request return authentication information received according to it；And receiving the certification that described vehicle returns During information, complete the authentication operation of vehicle according to its authentication information received.
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