CN112399382A - Vehicle networking authentication method, device, equipment and medium based on block chain network - Google Patents

Vehicle networking authentication method, device, equipment and medium based on block chain network Download PDF

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CN112399382A
CN112399382A CN202011286660.2A CN202011286660A CN112399382A CN 112399382 A CN112399382 A CN 112399382A CN 202011286660 A CN202011286660 A CN 202011286660A CN 112399382 A CN112399382 A CN 112399382A
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vehicle
authenticated
authentication
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request message
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寇美娟
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Ping An Technology Shenzhen Co Ltd
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Ping An Technology Shenzhen Co Ltd
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Priority to PCT/CN2021/096834 priority patent/WO2022105176A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication

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Abstract

The application relates to a vehicle networking authentication method and device based on a block chain network, computer equipment 50 and a storage medium, wherein the vehicle networking comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate authority and a cloud service network system consisting of a plurality of cloud servers; a plurality of road side nodes are used as peer-to-peer nodes to form a block chain network; the method comprises the following steps: the roadside node authenticates the vehicle to be authenticated according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and the first hash value; and if the authentication is passed, the road side node stores the code number and the digital identification of the vehicle passing the authentication into the block chain network. The method can meet the requirement that each user vehicle node is safely added into the block chain network, ensures the safety of the block chain Internet of vehicles, and avoids using real vehicle identity characteristic information in vehicle communication through registration of a certificate authority.

Description

Vehicle networking authentication method, device, equipment and medium based on block chain network
Technical Field
The present application relates to the field of blockchain, and in particular, to a method and an apparatus for authenticating a vehicle networking based on a blockchain network, a computer device, and a storage medium.
Background
The connotation of the Internet of vehicles mainly refers to: the vehicle-mounted equipment on the vehicle effectively utilizes all vehicle dynamic information in the information network platform through a wireless communication technology, and provides different functional services in the running process of the vehicle. It can be seen that the internet of vehicles exhibits the following features: the Internet of vehicles can provide guarantee for the distance between the vehicles, and the probability of collision accidents of the vehicles is reduced; the Internet of vehicles can help the vehicle owner to navigate in real time, and the efficiency of traffic operation is improved through communication with other vehicles and a network system. The Internet of vehicles mainly comprises vehicles, road side units, certificate authorities, core networks and the like. The beacon information is collected through a sensor on the vehicle, transmitted to the upper layer through the road side unit and finally collected to the core network for centralized processing.
At present, a user vehicle wants to acquire related information, such as traffic information and the like, but a trust problem exists in a block chain network, a vehicle to be joined is difficult to be trusted by other vehicles, and a scheme for solving the trust problem well does not exist at present. After the entity in the internet of vehicles is attacked and sinks, serious information data security risk can be brought, and through excavating the content in the beacon information, an attacker can obtain the identity characteristic information of the vehicle, so that privacy information of a user is obtained, and life trouble and even potential safety hazards are brought to the user.
Disclosure of Invention
Based on this, it is necessary to provide a vehicle networking authentication method, apparatus, computer device and storage medium based on a blockchain network, aiming at the problem that there is a trust problem in the blockchain network and a vehicle to be joined is difficult to be trusted by other vehicles.
A vehicle networking authentication method based on a block chain network is disclosed, wherein the vehicle networking comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate authority and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
the authentication method comprises the following steps:
the roadside node authenticates the vehicle to be authenticated according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and the first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
if the authentication is passed, the roadside node stores the code number and the digital identification of the authenticated vehicle into the block chain network; the authentication request message includes a code number and a digital identification of the authentication vehicle.
In one embodiment, the method for authenticating the vehicle to be authenticated by the roadside node according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value includes: the roadside node calculates to obtain a second hash value according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated; acquiring a first hash value from the cloud service network system, and comparing whether the second hash value is equal to the first hash value; if the two are equal, the authentication is passed, otherwise, the authentication is not passed.
In one embodiment, the registration request message includes identity characteristic information of the vehicle to be authenticated; the identity characteristic information comprises a license plate number, an engine serial number, a vehicle type and vehicle owner identity information.
In one embodiment, the code number and the digital identifier of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from an on-board node of the vehicle to be authenticated, and the method comprises the following steps:
according to a preset fixed format pair (H) based on the registration request messagea(PID||Pkn),Hb(ID ctf)) to hash; wherein Ha() And Hb() Is two hash functions; the ID represents the identity characteristic information of the vehicle to be authenticated, the PID represents the code number of the vehicle to be authenticated, and ctf represents the digital identification of the vehicle to be authenticated.
In one embodiment, the digital identifier includes a public key and a private key pair of the vehicle to be authenticated.
In one embodiment, the public-private key pair is generated by an elliptic curve cryptography algorithm.
In one embodiment, the method further comprises: and the roadside node broadcasts the code number and the digital identification of the authenticated vehicle in the block chain network in the whole network.
A vehicle networking authentication device based on a block chain network comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate issuing mechanism and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
the authentication apparatus includes:
the authentication module is used for authenticating the vehicle to be authenticated by the roadside node according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and a first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
the storage module is used for storing the code number and the digital identifier of the vehicle passing the authentication into the block link network by the road side node if the authentication passes; the authentication request message includes a code number and a digital identification of the authentication vehicle.
A computer device comprising a memory and a processor, the memory having stored therein computer readable instructions, which, when executed by the processor, cause the processor to perform the steps of the above-mentioned block chain network-based internet of vehicle authentication method.
A storage medium storing computer readable instructions which, when executed by one or more processors, cause the one or more processors to perform the steps of the above-mentioned block chain network-based vehicle networking authentication method.
The vehicle networking authentication method and device based on the block chain network, the computer equipment and the storage medium can meet the requirement that each user vehicle node is added into the block chain network safely, the safety of the block chain vehicle networking is guaranteed, and the user experience is good. The certificate authority registers and issues codes and digital marks to the vehicles for subsequent communication from the vehicles to the vehicles and from the vehicles to road side nodes, so that the real vehicle identity characteristic information is prevented from being used in vehicle communication, and other entities except the vehicles and the certificate authority cannot obtain the identity characteristic information of the vehicles, so that the purpose of protecting the identity characteristic information of the vehicles is achieved, and information leakage is avoided.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application, or may be learned by the practice of the embodiments. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block chain network based vehicle networking architecture diagram provided in one embodiment;
FIG. 2 is a flowchart illustrating the steps for roadside node authentication of a vehicle in one embodiment;
FIG. 3 is a flow diagram of a method for vehicle networking authentication based on a blockchain network in one embodiment;
FIG. 4 is a block diagram of an embodiment of a vehicle networking authentication device based on a blockchain network;
FIG. 5 is a block diagram showing an internal configuration of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
One embodiment of the present application provides a block chain network-based vehicle networking authentication method, as shown in fig. 1, the block chain network-based vehicle networking includes: the system comprises a plurality of vehicle-mounted nodes, a plurality of road-side nodes, a Certificate Authority (CA) and a cloud service network system. The cloud service network system comprises a plurality of cloud servers, and all the cloud servers externally provide cloud services in a distributed computer cluster system mode.
Each vehicle-mounted node is arranged on one vehicle. The vehicle-mounted node is a microwave device adopting a special short-range communication technology. And the vehicle-mounted node and the road side node carry out microwave communication through a special short-range communication technology. The on-board nodes can be in microwave communication with the roadside nodes, the CA, or other on-board nodes. Microwave communication (Mncrowave Communncatnon) is communication by means of electromagnetic waves, i.e. microwaves, with a wavelength between 0.1 mm and 1 meter. The frequency range corresponding to the electromagnetic wave of the wavelength band is 300MHz to 300 GHz.
The CA can perform information interaction with the vehicle-mounted node and can receive a registration request message sent by the vehicle-mounted node, wherein the registration request message comprises the identity characteristic information of the vehicle. The identity characteristic information of the vehicle generally includes a license plate number, an engine serial number, a vehicle type, owner identity information and the like of the vehicle.
The CA can generate a code number and a digital identification for the vehicle based on the identity characteristic information of the vehicle and send the code number and the digital identification to the vehicle that sent the registration request message. The code number is a character string and is in unique corresponding relation with the vehicle. The digital identifier comprises a public key and private key pair used for information interaction between the vehicle and other entities. The digital identification is a digital authentication for marking identity information of each communication party in network communication, and a user can use the digital authentication to identify the identity of the other party on the network. The digital identifier is also referred to as a digital certificate. The digital identifier ensures the integrity and safety of information and data in the computer network communication of network users in an encrypted or decrypted form. The CA is a third-party trusted authority that generates and determines the code number and the digital identifier of the vehicle, is an issuing authority for the code number and the digital identifier, and is the core of a Public Key Infrastructure (PKI).
The CA registers the identity characteristic information of the vehicle, and generates and sends a code number and a digital identifier according to the identity characteristic information. And the vehicle carries out information interaction with other entities in the Internet of vehicles through the code number and the digital identification. When the vehicle-mounted node and the CA perform information interaction, the vehicle-mounted node sends a registration request message to the CA, wherein the registration request message contains identity characteristic information of the vehicle, such as license plate number, engine serial number, vehicle type, owner identity information and the like of the vehicle.
And the CA generates a code number and a digital identifier for the vehicle according to the vehicle identity characteristic information in the registration request message. The digital mark and the vehicle have a unique corresponding relation, and the code number and the digital mark are stored in a database of the CA. If the registered vehicle generates bad behaviors during communication, such as issuing false information and the like, and is found by the road side node or reported by other vehicles, the road side node extracts the identity characteristic information of the registered vehicle generating the bad behaviors from the database of the CA, and logs out the digital identification of the vehicle. The data stored in the CA database is stored in the form of ciphertext.
Each road side node is arranged at a preset place of a road (for example, assembled on a traffic light), and is used as a peer node to form a block chain network, so that the block chain network is used for carrying out information interaction and authentication with vehicles near the preset place according to the code numbers and the digital identifications of the vehicles, and after the vehicle authentication is passed, the code numbers and the digital identifications of the authenticated vehicles are stored in the block chain network and are broadcasted to other blocks of the block chain network.
Roadside nodes may be located at multiple locations on a road, for example, may be located on traffic lights or on billboards of the road. The block chain network is a network constructed by taking road side nodes as peer nodes, in the block chain network, transaction data are packaged into a plurality of blocks, and the blocks are linked through hash values. The hash value is a hash value. The hash function is a hash function.
The road side nodes are network access points arranged on roads, can receive information of other entities in the internet of vehicles, are used for realizing functions of vehicle identity authentication, traffic event announcement, data storage and the like, realize information sharing among the road side nodes, and broadcast regional traffic service information, such as real-time road conditions, traffic events, weather conditions, control information and the like, to the passing vehicles in a broadcast mode. All road side nodes maintain the stored information together and can prevent bad behaviors of malicious attacks.
And the road side node is responsible for packaging, verifying and partially storing the notice information of the vehicle-mounted node, storing the hash value of all data, and adopting a workload certification protocol as a consensus protocol. The nodes of each block chain network, namely the road side nodes, store the backup of the hash value of the data, and under the action of a consensus protocol, the consistency and the correctness of the data in the block chain network are maintained together.
The cloud server is communicated with the CA, the vehicle-mounted node and the road side node, can receive and store vehicle information sent by the road side node and the CA, receives an inquiry request of the road side node, and returns feedback information according to the inquiry request.
The cloud server provides cloud service for entities such as road side nodes and vehicle-mounted nodes in the Internet of vehicles. The cloud server may operate in a distributed system manner. Each server in the distributed system stores part or all of the data, calculates data information sent by the road side node, and stores the encrypted information and the related specific content information.
The cloud service network system comprises a plurality of cloud servers, and the servers 1 to n externally provide cloud services in the form of distributed computer cluster systems. And the vehicle-mounted node can perform query operation on the data according to the unique hash value of the data.
In the prior art, a common vehicle networking system needs a third-party trusted authority to be responsible for distributing system parameters, information interaction among entities in the system cannot be separated from participation of the third-party trusted authority, and the vehicle networking system based on the block chain network of the embodiment adopts a decentralized system model, so that dependence of other entities in the system on the third-party trusted authority is reduced, and a safe and trusted communication environment can be provided for communication among the entities.
The CA generates a code number and a digital identification for the vehicle according to the identity characteristic information of the vehicle, and sends the code number and the digital identification to the vehicle, and the CA comprises:
CA in a preset fixed format pair (H) based on the registration request messagea(PID||Pkn),Hb(ID ctf)) to hash; wherein Ha() And Hb() For a hash function, ID represents the identity information of the nth vehicle, PID represents the code number of the nth vehicle, the identity information ID and the code number PID are in a one-to-one correspondence, the one-to-one correspondence is stored in the database of the CA, ctf represents the digital identification of the nth vehicle, the digital identification comprises the public and private key pair (P) of the nth vehiclekn,Skn) (ii) a The CA identifies the code number PID, the number ctf and the hash value H of the nth vehiclebAnd returned to the vehicle that sent the registration request message.
In a particular embodiment, the registered vehicle submits a true identity to the CA, which verifies it, and then pairs (H) in a fixed formata(PID||Pkn),Hb(ID ctf)) is hashed, and finally the code number PID and the number are marked ctf, HbTo registered vehicles, HaStored in a cloud service network system S, wherein the certificate contains a public key-private key pair (P) of the vehiclekn,Skn). In some embodiments, the identity information of the vehicle is in a hash mapping relationship with the code number. The public-private key pair for each vehicle may be generated by an elliptic curve cryptography algorithm.
The CA of this embodiment also discloses 5 secure hash functions Ha、Hb、Hc、HdAnd HeAfter publishing the hash functions, other entities in the car networking, such as the cloud server, the road side node, etc., can receive the 5 hash functions. The Hash function is the Hash function. Hash, transliteration being a Hash, also called Hash or Hash, is the transformation of an input of arbitrary length (also called pre-image) into an output of fixed length, the output being a Hash value, by a hashing algorithm. This conversion is a compression mapping, i.e. the space of hash values is usually much smaller than the space of inputs, different inputs may hash to the same output, so it is not possible to determine a unique input value from a hash value. In short, it is a function of compressing a message of an arbitrary length to a message digest of a certain fixed length.
The method for authenticating the vehicle-mounted node of the vehicle to be authenticated by the road side node comprises single authentication.
For example, the roadside node authenticates a vehicle to be authenticated near a preset location according to the code number and the digital identifier of the vehicle, and the method includes the following steps:
receiving an authentication request message sent by an nth vehicle through a first vehicle-mounted node, wherein the authentication request message comprises a code number PID and a public key P of the nth vehicleknThe nth vehicle is any vehicle near a preset place where the road side node is located;
the code number PID and the public key P of the nth vehicle are comparedknAccording to a hash function HaCalculating to obtain a first hash value, and comparing the first hash value with H from CA inquired from the cloud serveraAnd if the authentication request message is not consistent with the authentication request message, returning an authentication failure message to the vehicle-mounted node sending the authentication request message.
In another embodiment, before the roadside node authenticates the vehicle to be authenticated according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value, the authentication method further comprises: and generating a public key and private key pair of the vehicle to be authenticated through an elliptic curve encryption algorithm.
In vehicle authentication, a registered vehicle uses a code number identity to protect its own identity privacy for communication activities, and as shown in fig. 2, authentication of the vehicle by a road side node includes:
and S10, the vehicle sends an authentication request message to the nearby road side node through the vehicle-mounted node, wherein the content of the authentication request message comprises the vehicle code and the public key.
S20, after receiving the authentication request message, the road side node sends an authentication request message according to HaThe algorithm calculates the code and the public key of the vehicle, and then inquires H from the cloud service network systema(PID||Pkn) And if the query result is consistent with the calculation result of the road side node, the primary authentication is passed.
S30, establishing a random number negotiation mechanism, and encrypting the random number N by the road side node by using the public key of the authenticated vehicler1And sending the obtained encrypted value to the authentication vehicle.
S40, after the vehicle receives the encrypted value, the vehicle is decrypted by the private key to obtain the random number Nr1The random number from the road side node can be used for subsequent traffic event notice; while authenticating the vehicle to randomly select another random number Nr2Carrying out Hb(Nr1||Nr2) The hash of (a) is calculated, and finally the information Sig (H)a)||Hb(Nr1||Nr2)||Nr2And sending the data to the road side node.
S50, after receiving the information, the road side node firstly receives the information according to HbThe algorithm follows the information from the vehicleThe machine number and the locally selected random number are calculated, and if the calculated result is the same as the transmitted information Sig (H)a)||Hb(Nr1||Nr2)||Nr2If the results in (1) are consistent, the negotiation of the random number is successful.
In some embodiments, the road side node stores the code number and the associated information of the authenticated vehicle in the blockchain network, and performs the whole network broadcast to the blockchain network, including: using a public key P for authenticating a vehicleknTo HaSignature Sig (H) ofa) After verification, the road side node pair receives the information Sig (H) after the verification result is truea)||Hb(Nr1||Nr2)||Nr2And packaging to form a transaction together, storing transaction data on the blockchain network, and performing network-wide broadcasting in the blockchain network.
As shown in fig. 3, another embodiment of the present application provides a block chain network-based vehicle networking authentication method, which includes the following steps:
step S1, the vehicle to be authenticated sends an authentication request message to the road side node.
Step S2, after receiving the authentication request message, the road side node calculates to obtain a corresponding hash value (which may be referred to as a second hash value), and queries whether the second hash value exists from the cloud service network system; the cloud service network system comprises a plurality of cloud servers, and all the cloud servers externally provide cloud services in a distributed computer cluster system mode.
Step S3, determining whether the second hash value exists, and if the second hash value does not exist, failing to authenticate; and if the second hash value exists, the road side node sends the encrypted first random number to the vehicle to be authenticated.
Step S4, the vehicle obtains the first random number after being decrypted by the private key, then the second random number is selected, the first random number and the second random number are subjected to hash operation to obtain a random number hash value, the hash value containing the code number is subjected to digital signature, and then the signature value, the random number hash value and the second random number are sent to the road side node.
And step S5, the road side node verifies the hash value and the signature, and packages the data to form a transaction.
And step S6, storing the transaction data in the blockchain network, carrying out whole network broadcasting, and passing the identity authentication.
According to the method, if the vehicle A wants to communicate with the nodes in the block chain, the identity needs to be submitted to the roadside unit for registration, the roadside unit detects vehicle effectiveness and then encrypts and transmits the vehicle effectiveness to the cloud, the cloud judges whether the vehicle A information is added into an account book according to a consensus suppression algorithm so as to send the vehicle A information to other vehicles near the roadside unit, and the different vehicles can communicate through the block chain network through the verification process.
The vehicle networking authentication method based on the block chain network can meet the requirement that each user vehicle node can safely join the block chain network, the safety of the block chain vehicle networking is guaranteed, and user experience is good. The certificate authority registers and issues codes and digital marks to the vehicles for subsequent communication from the vehicles to the vehicles and from the vehicles to road side nodes, so that the real vehicle identity characteristic information is prevented from being used in vehicle communication, and other entities except the vehicles and the certificate authority cannot obtain the identity characteristic information of the vehicles, so that the purpose of protecting the identity characteristic information of the vehicles is achieved, and information leakage is avoided.
Another embodiment of the application provides a vehicle networking authentication device based on a block chain network, wherein the vehicle networking comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate authority and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
as shown in fig. 4, the authentication apparatus includes:
the authentication module 100 is used for the roadside node to authenticate the vehicle to be authenticated according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and a first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
a storage module 200, configured to, if the authentication passes, store the code number and the digital identifier of the authenticated vehicle in the block link network by the roadside node; the authentication request message includes a code number and a digital identification of the authentication vehicle.
In some embodiments, the step, executed by the authentication module 100, of the roadside node authenticating the vehicle to be authenticated according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value specifically includes: the roadside node calculates to obtain a second hash value according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated; acquiring a first hash value from the cloud service network system, and comparing whether the second hash value is equal to the first hash value; if the two are equal, the authentication is passed, otherwise, the authentication is not passed.
In some embodiments, the registration request message includes identity feature information of the vehicle to be authenticated; the identity characteristic information comprises a license plate number, an engine serial number, a vehicle type and vehicle owner identity information.
In some embodiments, the code number and the digital identifier of the vehicle to be authenticated are generated by the certificate authority from a registration request message from an on-board node of the vehicle to be authenticated, including:
hashing (Ha (PID | | | Pkn), Hb (ID | | | ctf)) according to a preset fixed format based on the registration request message; wherein, Ha () and Hb () are two hash functions; the ID represents the identity characteristic information of the vehicle to be authenticated, the PID represents the code number of the vehicle to be authenticated, and ctf represents the digital identification of the vehicle to be authenticated.
In some embodiments, the digital identifier includes a public-private key pair of the vehicle to be authenticated.
In some embodiments, the public-private key pair is generated by an elliptic curve cryptography algorithm.
In some embodiments, the authentication apparatus further includes a broadcasting module 300, and the broadcasting module 300 is configured to broadcast, by the road side node, the code number and the digital identifier of the authenticated vehicle over the entire network in the blockchain network.
As shown in fig. 5, in one embodiment, a computer device 50 is proposed, the computer device 50 comprises a memory 501, a processor 500, a bus 502, a communication interface 503 and a computer program stored on the memory 501 and executable on the processor 500, the memory 501, the processor 500 and the communication interface 503 are connected via the bus 502. The processor 500, when executing the computer program, performs the following steps: the Internet of vehicles comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate issuing mechanism and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
the authentication method comprises the following steps:
the roadside node authenticates the vehicle to be authenticated according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and the first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
if the authentication is passed, the roadside node stores the code number and the digital identification of the authenticated vehicle into the block chain network; the authentication request message includes a code number and a digital identification of the authentication vehicle.
The step of authenticating, by the roadside node, the vehicle to be authenticated according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value, which is implemented when the processor 500 executes the computer program, includes: the roadside node calculates to obtain a second hash value according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated; acquiring a first hash value from the cloud service network system, and comparing whether the second hash value is equal to the first hash value; if the two are equal, the authentication is passed, otherwise, the authentication is not passed.
The registration request message comprises identity characteristic information of the vehicle to be authenticated; the identity characteristic information comprises a license plate number, an engine serial number, a vehicle type and vehicle owner identity information.
The code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated, and the method comprises the following steps:
according to a preset fixed format pair (H) based on the registration request messagea(PID||Pkn),Hb(ID ctf)) to hash; wherein Ha() And Hb() Is two hash functions; the ID represents the identity characteristic information of the vehicle to be authenticated, the PID represents the code number of the vehicle to be authenticated, and ctf represents the digital identification of the vehicle to be authenticated.
The digital identification comprises a public key and a private key pair of the vehicle to be authenticated.
The public key and private key pair is generated by an elliptic curve encryption algorithm.
The steps implemented by the processor 500 when executing the computer program further comprise: and the roadside node broadcasts the code number and the digital identification of the authenticated vehicle in the block chain network in the whole network.
In one embodiment, a storage medium is presented that stores computer-readable instructions that, when executed by one or more processors 500, cause the one or more processors 500 to perform the steps of: the Internet of vehicles comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate issuing mechanism and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
the authentication method comprises the following steps:
the roadside node authenticates the vehicle to be authenticated according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and the first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
if the authentication is passed, the roadside node stores the code number and the digital identification of the authenticated vehicle into the block chain network; the authentication request message includes a code number and a digital identification of the authentication vehicle.
The step of authenticating, by the roadside node, the vehicle to be authenticated according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value, implemented when the processor 500 executes the computer-readable instructions, includes: the roadside node calculates to obtain a second hash value according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated; acquiring a first hash value from the cloud service network system, and comparing whether the second hash value is equal to the first hash value; if the two are equal, the authentication is passed, otherwise, the authentication is not passed.
The registration request message comprises identity characteristic information of the vehicle to be authenticated; the identity characteristic information comprises a license plate number, an engine serial number, a vehicle type and vehicle owner identity information.
The code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated, and the method comprises the following steps:
according to a preset fixed format pair (H) based on the registration request messagea(PID||Pkn),Hb(ID ctf)) to hash; wherein Ha() And Hb() Is two hash functions; the ID represents the identity characteristic information of the vehicle to be authenticated, the PID represents the code number of the vehicle to be authenticated, and ctf represents the digital identification of the vehicle to be authenticated.
The digital identification comprises a public key and a private key pair of the vehicle to be authenticated.
The public key and private key pair is generated by an elliptic curve encryption algorithm.
The steps implemented by the processor 500 when executing the computer readable instructions further comprise: and the roadside node broadcasts the code number and the digital identification of the authenticated vehicle in the block chain network in the whole network.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device. The computer program instructions for carrying out operations of the present application may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry can execute computer-readable instructions to implement aspects of the present application by utilizing state information of the computer-readable instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the computer program is executed. The storage medium may be a non-volatile storage medium such as a magnetic disk, an optical disk, a Read-Only Memory (ROM), or a Random Access Memory (RAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The vehicle networking authentication method based on the block chain network is characterized in that the vehicle networking comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate authority and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
the authentication method comprises the following steps:
the roadside node authenticates the vehicle to be authenticated according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and the first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
if the authentication is passed, the roadside node stores the code number and the digital identification of the authenticated vehicle into the block chain network; the authentication request message includes a code number and a digital identification of the authentication vehicle.
2. The method according to claim 1, wherein the roadside node authenticating the vehicle to be authenticated according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value comprises:
the roadside node calculates to obtain a second hash value according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated;
acquiring a first hash value from the cloud service network system;
comparing whether the second hash value is equal to the first hash value;
if the two are equal, the authentication is passed, otherwise, the authentication is not passed.
3. The method according to claim 1, wherein the registration request message includes identity information of the vehicle to be authenticated; the identity characteristic information comprises a license plate number, an engine serial number, a vehicle type and vehicle owner identity information.
4. The method of claim 3, wherein the code number and digital identification of the vehicle to be authenticated are generated by the certificate authority from a registration request message from an on-board node of the vehicle to be authenticated, comprising:
according to a preset fixed format pair (H) based on the registration request messagea(PID||Pkn),Hb(ID. ctf)) intoRow hashing; wherein HaAnd HbIs two hash functions; the ID represents the identity characteristic information of the vehicle to be authenticated, the PID represents the code number of the vehicle to be authenticated, and ctf represents the digital identification of the vehicle to be authenticated.
5. The method of claim 4, wherein the digital identification comprises a public-private key pair of the vehicle to be authenticated.
6. The method according to claim 5, wherein before the roadside node authenticates the vehicle to be authenticated according to the authentication request message from the vehicle-mounted node of the vehicle to be authenticated and the first hash value, the method further comprises: and generating a public key and private key pair of the vehicle to be authenticated through an elliptic curve encryption algorithm.
7. The method of claim 1, further comprising: and the roadside node broadcasts the code number and the digital identification of the authenticated vehicle in the block chain network in the whole network.
8. The vehicle networking authentication device based on the block chain network is characterized in that the vehicle networking comprises a plurality of vehicle-mounted nodes, a plurality of road side nodes, a certificate authority and a cloud service network system consisting of a plurality of cloud servers; each vehicle-mounted node is arranged on one vehicle; the road side nodes are used as peer-to-peer nodes to form a block chain network;
the authentication apparatus includes:
the authentication module is used for authenticating the vehicle to be authenticated by the roadside node according to an authentication request message from a vehicle-mounted node of the vehicle to be authenticated and a first hash value; the first hash value is obtained by the certificate authority according to the code number and the digital identification of the vehicle to be authenticated; the code number and the digital identification of the vehicle to be authenticated are generated by the certificate authority according to a registration request message from a vehicle-mounted node of the vehicle to be authenticated;
the storage module is used for storing the code number and the digital identifier of the vehicle passing the authentication into the block link network by the road side node if the authentication passes; the authentication request message includes a code number and a digital identification of the authentication vehicle.
9. A computer device comprising a memory and a processor, the memory having stored therein computer readable instructions which, when executed by the processor, cause the processor to perform the steps of the blockchain network based internet of vehicles authentication method of any one of claims 1 to 7.
10. A storage medium storing computer readable instructions which, when executed by one or more processors, cause the one or more processors to perform the steps of the blockchain network based internet of vehicles authentication method according to any one of claims 1 to 7.
CN202011286660.2A 2020-11-17 2020-11-17 Vehicle networking authentication method, device, equipment and medium based on block chain network Pending CN112399382A (en)

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