CN112566047B - Method, device and system for determining authority of V2X interaction information based on alliance chain - Google Patents
Method, device and system for determining authority of V2X interaction information based on alliance chain Download PDFInfo
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Abstract
The invention provides a method, a device and a system for determining authority of V2X interaction information based on a federation chain, wherein the method comprises the following steps: acquiring a V2X interactive information delivery body of a vehicle node, wherein the management platform node belongs to a management platform node alliance; judging whether the V2X interactive information in the V2X interactive information delivery body passes through management platform node alliance authentication or not, and sending the V2X interactive information passing through the management platform node alliance authentication to all other management platform nodes in the management platform node alliance; and receiving the V2X interaction information set after the agreement information confirms the consensus of the intelligent contracts sent by the accounting management platform node, and feeding back the right confirmation result to the vehicle node according to the V2X interaction information set after the agreement information confirms the consensus of the intelligent contracts. The method, the device and the system can solve the problems that the rights and interests of an interactive information provider cannot be guaranteed and potential safety hazards are easy to generate due to the lack of the right-determining management of the interactive information in the conventional V2X information interaction method.
Description
Technical Field
The invention relates to the technical field of vehicle networking, in particular to a method, a device and a system for determining authority of V2X interaction information based on a alliance chain.
Background
The existing information interaction of the Internet of vehicles mainly comprises the following steps: Vehicle-to-Vehicle (V2V), Vehicle-to-roadside Infrastructure (V2I), Vehicle-to-Pedestrian (V2P), and Vehicle-to-Cloud Server (V2C), the information interaction of V2V, V2I, V2P, V2C is collectively referred to as V2X information interaction.
However, the existing V2X information interaction method lacks of authority management for the interaction information, and because the interaction information provider is difficult to determine effectively, the rights and interests of the interaction information provider cannot be guaranteed, and the problem of potential safety hazard is easily caused. Therefore, providing a method for ensuring the authority of V2X mutual information based on federation chain is a problem to be solved by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, an apparatus, and a system for determining authority of V2X mutual information based on a federation chain for solving the problems that the rights and interests of the mutual information provider cannot be guaranteed and potential safety hazards are easily generated due to lack of authority management on the mutual information in the existing V2X information mutual method.
In a first aspect, an embodiment of the present invention provides an authorization determining method for V2X interaction information based on a federation chain, which is applied to a management platform node, and includes:
acquiring a V2X interactive information delivery body of a vehicle node, wherein the management platform node belongs to a management platform node alliance;
judging whether the V2X interactive information in the V2X interactive information delivery body passes through management platform node alliance authentication or not, and sending the V2X interactive information passing through the management platform node alliance authentication to all other management platform nodes in the management platform node alliance;
and receiving an achievement information sent by a billing management platform node to confirm the V2X interaction information set after the intelligent contract consensus, and feeding back a right confirmation result to the vehicle node according to the V2X interaction information set after the achievement information confirms the intelligent contract consensus, wherein the billing management platform node belongs to a management platform node alliance.
Preferably, the V2X mutual information delivery body is formed by encrypting the V2X mutual information and the digital signature of the V2X mutual information by the vehicle node by using the public key of the management platform node;
the judging whether the V2X interaction information in the V2X interaction information delivery body passes the management platform node alliance authentication comprises the following steps:
decrypting the V2X interactive information delivery body by using a private key of the V2X interactive information delivery body;
the management platform node verifies the digital signature in the decrypted V2X interactive information delivery body;
if the verification is successful, sending the V2X interactive information delivery body and the decrypted V2X interactive information to all other management platform nodes in a management platform node alliance;
receiving voting results of the V2X mutual information delivery body and the decrypted V2X mutual information respectively sent by all other management platform nodes in a management platform node alliance, and judging whether the V2X mutual information passes the management platform node alliance authentication or not according to the voting results.
Preferably, before the step of acquiring the V2X mutual information delivery body of the vehicle node, the method further includes:
setting or updating grammar rules and semantic rules of V2X interaction information;
sending the grammar rules and semantic rules to the vehicle node;
the V2X interaction information is generated by the vehicle node according to the grammar rule and the semantic rule;
the feedback of the authentication result to the vehicle node according to the V2X interaction information set after the confirmation of the intelligent contract consensus by the achievement information comprises the following steps:
if the V2X interaction information set after the agreement information confirms the intelligent contract consensus comprises the V2X interaction information, the management platform node sends a right confirmation passing message to the vehicle node, otherwise, the management platform node sends a right confirmation failing message to the vehicle node.
In a second aspect, an embodiment of the present invention provides a method for determining authority of V2X interaction information based on a federation chain, which is applied to a billing management platform node, and includes:
acquiring all V2X interaction information authenticated by a management platform node alliance in a preset time period as a V2X interaction information set, wherein the accounting management platform node belongs to the management platform node alliance;
judging whether the V2X interaction information set achieves information confirmation intelligent contract consensus or not, and sending the V2X interaction information set achieving the information confirmation intelligent contract consensus to all other management platform nodes in the management platform node alliance;
and writing the V2X interaction information set which is agreed by the achievement information confirmation intelligent contract into a V2X interaction information block chain.
Preferably, the determining whether the V2X interaction information set achieves information confirmation intelligent contract consensus includes:
verifying each V2X interaction information in the V2X interaction information set based on an information validation smart contract;
taking all verified V2X interaction information in the V2X interaction information set as a V2X interaction information verification set, sending the V2X interaction information verification set and the V2X interaction information set to all other management platform nodes in the management platform node alliance, so that the other management platform nodes compare the V2X interaction information verification set obtained by the other management platform nodes based on the information confirmation intelligent contract with the received V2X interaction information verification set, and feed back a consensus result to the accounting management platform node according to the comparison result;
receiving consensus results fed back by all other management platform nodes respectively, wherein the consensus results comprise approval or disapproval;
and if the agreeable proportion in the consensus result reaches a preset proportion, judging that the V2X mutual information set achievement information confirms the intelligent contract consensus, and using the V2X mutual information verification set as the V2X mutual information set after the achievement information confirms the intelligent contract consensus.
Preferably, in the step of verifying each V2X interaction information in the V2X interaction information set based on the information confirmation smart contract, the verification condition at least includes one of the following conditions, including:
verifying whether the V2X interaction information conforms to a grammar rule;
verifying whether the V2X interaction information conforms to semantic rules;
verifying whether the V2X interaction information conforms to real-time uniqueness;
and verifying whether the V2X interaction information conforms to the historical uniqueness.
Preferably, the writing the V2X mutual information set after the achievement information confirms the intelligent contract consensus into the V2X mutual information block chain includes:
establishing a Merkle tree and acquiring a Merkle root based on the V2X interaction information set after the achievement information confirms the consensus of the intelligent contracts;
constructing a new V2X mutual information block based on the Merkle root and the V2X mutual information set after the achievement information confirms the consensus of the intelligent contracts;
writing the new V2X mutual information chunk into a V2X mutual information chunk chain.
In a third aspect, an embodiment of the present invention provides an authorization determining method for V2X interaction information based on a federation chain, which is applied to a vehicle node, and includes:
generating V2X interaction information which accords with a grammar rule and a semantic rule when the V2X information is interacted;
obtaining a V2X interactive information delivery body according to the V2X interactive information;
and sending the V2X interactive information delivery body to the management platform node, wherein the management platform node belongs to a management platform node alliance.
In a fourth aspect, an embodiment of the present invention provides an apparatus for determining authority of V2X mutual information based on a federation chain, where the apparatus is disposed in a management platform node, and the apparatus includes:
the delivery body acquisition module is used for acquiring a V2X interactive information delivery body of a vehicle node, and the management platform node belongs to a management platform node alliance;
a union authentication judgment module, connected to the delivery body acquisition module, configured to judge whether the V2X interaction information in the V2X interaction information delivery body passes through management platform node union authentication, and send the V2X interaction information that passes through management platform node union authentication to all management platform nodes in a management platform node union;
and the receiving feedback module is connected with the alliance authentication judgment module and used for receiving the V2X interaction information set which is sent by the accounting management platform node and is confirmed by the achievement information, and feeding back the right confirmation result to the vehicle node according to the V2X interaction information set which is confirmed by the achievement information, wherein the intelligent contract is confirmed by the achievement information, and the accounting management platform node belongs to the management platform node alliance.
In a fifth aspect, an embodiment of the present invention provides a vehicle networking system, including a management platform node and a vehicle node;
the management platform node is used for executing the authorization method based on the V2X mutual information of the alliance chain according to the first aspect or the second aspect;
the vehicle node comprises a vehicle-mounted terminal, and the vehicle-mounted terminal is used for executing the authorization method based on the V2X mutual information of the alliance chain according to the third aspect.
The authorization determining method, device and system for V2X mutual information based on alliance chain provided in the embodiments of the present invention send V2X mutual information delivery body to a management platform node in alliance chain when a vehicle node needs to perform V2X information interaction, the management platform node determines whether V2X mutual information in the V2X mutual information delivery body passes alliance authentication of the management platform node, that is, it is determined that the management platform node receives the V2X mutual information safely and the V2X mutual information is provided by the vehicle node, and sends V2X mutual information authenticated by the management platform node alliance to all other management platform nodes in the management platform node alliance, including the management node, so that the management node can perform intelligent contract determination for information confirmation when acquiring all V2X mutual information authenticated by the management platform node alliance within a preset time period, and the V2X mutual information set after the agreement is confirmed to be identified by the intelligent contract is sent to all other management platform nodes in the management platform node alliance, and is written into the V2X mutual information block chain, so that the right of the vehicle node V2X mutual information is confirmed, and the traceability of the V2X mutual information or the right confirmation process is realized, and the problems that the rights of mutual information providers cannot be guaranteed and potential safety hazards are easily generated due to the lack of the right confirmation management of the mutual information in the existing V2X information mutual method are solved.
Drawings
FIG. 1: a flowchart of an authorization method based on V2X mutual information of a federation chain in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram: is a schematic structural diagram of a vehicle alliance chain of an embodiment of the invention;
FIG. 3: a flowchart of an authorization method based on V2X mutual information of a federation chain in embodiment 2 of the present invention;
FIG. 4: a flowchart of an authorization method based on V2X mutual information of a federation chain in embodiment 3 of the present invention;
FIG. 5: the embodiment 4 of the present invention is a schematic structural diagram of an authorization apparatus based on V2X mutual information of a federation chain.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. 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.
Example 1:
the embodiment provides an authorization determining method for V2X interaction information based on a federation chain, which is applied to a management platform node, and as shown in fig. 1, the method includes:
step S102: and acquiring the V2X mutual information deliverer of the vehicle node, wherein the management platform node belongs to a management platform node alliance.
In this embodiment, as shown in fig. 2, the management platform nodes and the vehicle nodes form a vehicle alliance chain, the management platform nodes and the vehicle nodes perform information interaction through 4G, 5G, C-V2X or DSRC, all the management platform nodes form a management platform node alliance, the management platform node alliance at least includes one accounting management platform node, and any one of the management platform nodes can be an accounting management platform node and determined by the management platform node alliance.
In this embodiment, the V2X mutual information delivery body is formed by encrypting the V2X mutual information and the digital signature of the V2X mutual information by the vehicle node by using the public key of the management platform node. The V2X interaction information can be generated based on the syntax of the V2X interaction information for managing platform node synchronization and semantic rules, and the V2X interaction information can comprise information such as vehicle attributes, service data, communication modes, interaction objects and timestamps. The vehicle attributes are license plate number, engine number, frame number, vehicle terminal information, vehicle owner information, insurance information and the like. The digital signature of the V2X mutual information is obtained by adopting a private key of a vehicle node to sign a HASH value of the V2X mutual information, wherein the private key and the public key of the vehicle node are generated by the vehicle node according to the vehicle attribute.
In this embodiment, the V2X mutual information delivery body of the vehicle node obtained by the management platform node may be obtained by obtaining the V2X mutual information delivery body from the V2X mutual information right confirmation request based on the V2X mutual information right confirmation request sent by the vehicle node, where the V2X mutual information delivery body is obtained by encrypting the "V2X mutual information + digital signature of V2X mutual information" by the vehicle node using the public key of the requested management platform node. When the vehicle node performs V2X information interaction, the service data can be distributed to an interaction object through C-V2X or DSRC, and the V2X interaction information delivery body is sent to a management platform node with a close geographic position through communication modes such as 4G, 5G, C-V2X or DSRC.
Optionally, before the step of acquiring the V2X mutual information deliveries of the vehicle node, the method further includes:
setting or updating grammar rules and semantic rules of V2X interaction information;
sending the grammar rules and the semantic rules to the vehicle nodes;
the V2X interaction information is generated by the vehicle node according to the grammar rule and the semantic rule.
In this embodiment, the management platform node sets or updates syntax rules and semantic rules of itself and all other nodes in the vehicle alliance chain in advance, and sets or updates syntax rules of V2X interaction information, such as: the V2X interaction information is composed of vehicle attributes, service data, time attributes, communication methods, and interaction objects. Setting or updating semantic rules of the V2X interaction information, such as: the vehicle attribute, the service data, the time attribute, the communication mode, the interactive object and the like are described as follows:
1) vehicle attributes: the system comprises license plate numbers, engine numbers, frame numbers, vehicle-mounted terminal information, vehicle owner information, insurance information and the like.
2) Service data: the vehicle using behavior data and the vehicle state information are included, and the state information comprises performance data, working condition data and the like. Vehicle usage behavior data such as: position, velocity, acceleration, travel trajectory, etc. The vehicle state information is as follows: oil mass, fuel temperature, tire pressure, exhaust gas emission and the like.
3) The time attribute is as follows: the business data changing along with time needs time attributes, namely time stamps, and the format is as follows: year-month-day-hour-minute-second-millisecond.
4) The communication mode is as follows: there are three kinds of communication modes including broadcast, multicast (more than two interactive objects) and point-to-point interaction (only one interactive object). V2X information interaction must select one and only one communication method.
5) And (3) interactive objects: the interactive object can be a mobile phone number, a mobile internet communication address or other identifiers, and the mobile phone number is in a real name system. When the communication mode is broadcast, the interactive object is Null; when the communication mode is multicast, the interactive objects are limited (more than two) object identifications; when the communication mode is 'point-to-point interaction', the interaction object is an object identifier.
The service data is matched with the time attribute: time attributes are required for time-varying traffic data.
Wherein, the communication mode is matched with the interactive object: when the communication mode is broadcast, the interactive object is Null; when the communication mode is multicast, the interactive objects are limited (more than two) object identifications; when the communication mode is 'point-to-point interaction', the interaction object is an object identifier.
Step S104: and judging whether the V2X interactive information in the V2X interactive information delivery body passes the management platform node alliance authentication or not, and sending the V2X interactive information passing the management platform node alliance authentication to all other management platform nodes in the management platform node alliance.
In this embodiment, the management platform node alliance authenticates the sending body of the V2X interaction information, and confirms that the management platform node securely receives the V2X interaction information.
Optionally, the determining whether the V2X interaction information in the V2X interaction information delivery body passes the management platform node alliance authentication may include:
decrypting the V2X mutual information delivery body by using a private key of the private key;
the management platform node verifies the digital signature in the decrypted V2X interactive information delivery body;
if the verification is successful, sending the V2X interaction information delivery body and the decrypted V2X interaction information to all other management platform nodes in the management platform node alliance;
receiving voting results of the V2X mutual information delivery body and the decrypted V2X mutual information respectively sent by all other management platform nodes in the management platform node alliance, and judging whether the V2X mutual information passes the management platform node alliance authentication or not according to the voting results.
In this embodiment, after the management platform node decrypts the V2X mutual information delivery body of the vehicle by using its own private key, the public key of the vehicle node is used to verify its digital signature, that is, the V2X mutual information of the vehicle node in the decrypted V2X mutual information delivery body of the vehicle node is extracted, its HASH value is calculated, and the HASH value is compared with the HASH value of the received digital signature to verify whether the two values are the same. If the information is the same, the V2X interaction information is proved to be sent by the vehicle node, and the V2X interaction information delivery body of the vehicle node passes the authentication of the management platform node.
In this embodiment, when the V2X mutual information deliverer of the vehicle node passes the authentication of the management platform node, the management platform node forwards the V2X mutual information deliverer of the vehicle node and the V2X mutual information of the vehicle node to all other management platform nodes in a safe manner, and all other management platform nodes cast a "approval" or "disapproval" ticket for the authentication result of the management platform node. And the management platform nodes collect and count voting results of all other management platform nodes, if all other management platform nodes vote for 'approval' or the approval proportion reaches a preset proportion, the V2X interactive information delivery body or V2X interactive information representing the vehicle node passes the management platform node alliance authentication, otherwise, the management platform node alliance authentication is not passed.
Step S106: and receiving the V2X interaction information set sent by the accounting management platform node after the achievement information confirms the intelligent contract consensus, and feeding back the right confirmation result to the vehicle node according to the V2X interaction information set after the achievement information confirms the intelligent contract consensus, wherein the accounting management platform node belongs to the management platform node alliance.
In this embodiment, the management platform node alliance may determine the billing management platform node according to the rule of consistent assertion, such as: and adopting a round value accounting system. The confirmed management platform node is called an accounting management platform node. And the accounting management platform node is responsible for realizing information confirmation intelligent contract consensus, constructing a V2X interactive information block and writing the V2X interactive information block into a V2X interactive information block chain.
In this embodiment, if all management platform nodes in the management platform node alliance agree on V2X mutual information based on the information confirmation intelligent contract, the accounting management platform node sends the V2X mutual information set agreed by the agreement information confirmation intelligent contract to all other management platform nodes in the management platform node alliance and writes the V2X mutual information block chain.
In this embodiment, the information confirmation intelligent contract is used for verifying the V2X interaction information authenticated by the management platform node union, and the consensus on the information confirmation intelligent contract may be initiated by the accounting management platform node. For example, the billing management platform node may collect all V2X interaction information authenticated by the management platform node alliance in the preset time period T of the system as a V2X interaction information set, and perform the following verification on each element:
(a) verifying whether the V2X interaction information conforms to a grammar rule, and deleting the V2X interaction information which does not conform to the grammar rule from the V2X interaction information set.
(b) Verifying that the V2X interaction information meets the semantic rule, and deleting the V2X interaction information which does not meet the semantic requirement from the V2X interaction information set.
(c) And verifying the real-time uniqueness. In the V2X mutual information set, if there are two elements with the same attribute except the time attribute, the sending of the mutual information is repeated, and the V2X mutual information with a later time stamp is deleted from the V2X mutual information set.
(d) And verifying the uniqueness of the history. In a current block of the V2X or V2X interaction information block chain, if there are two elements with the same attribute except for the time attribute, it represents that other management platform nodes have submitted the interaction information, there is a history duplication, and the V2X interaction information is collected from the V2X interaction information.
After the above operations are performed in sequence, all verified V2X interaction information forms a V2X interaction information verification set, and the billing management platform node sends the V2X interaction information verification set and the V2X interaction information set to all other management platform nodes. And all other management platform nodes execute the information confirmation intelligent contract on the V2X interaction information set to obtain a V2X interaction information verification set, verify whether the V2X interaction information verification set is consistent with the V2X interaction information verification set sent by the accounting management platform node, and if so, feed back 'approval' to all other management platform nodes, including the accounting management platform node. And the accounting management platform node receives and counts the feedback of all other management platform nodes, if all the feedback is 'approved' or the approval proportion reaches a preset proportion, the V2X mutual information set achievement information is judged to confirm the intelligent contract consensus, the V2X mutual information verification set is used as a V2X mutual information set after the achievement information confirms the intelligent contract consensus, and the V2 3832 mutual information verification set is sent to all other management platform nodes in the management platform node alliance and is written into the V2X mutual information block chain.
In this embodiment, in order to implement traceability of V2X mutual information or right confirmation process and result, the V2X mutual information set after agreement information confirmation intelligent contract consensus may be written into the V2X mutual information block chain by the accounting management platform node. Specifically, the billing management platform node may construct a new V2X mutual information block by:
(1) establishing a Merkle tree based on the V2X mutual information set after the achievement information confirms the consensus of the intelligent contracts, and generating a Merkle root: and the V2X mutual information set after the information confirmation intelligent contract consensus is taken as Merkle tree bottom layer data, and the grouping hash is carried out from the bottom layer data, and the recursion is carried out step by step until only the last root hash value is left, namely the Merkle root.
(2) Constructing a block head: the chunk header consists of the chunk version number, hash value of the previous span, timestamp, and T, Merkle time periods.
(3) Constructing a new V2X mutual information block: based on the block header, the achievement information confirms the V2X mutual information set after the intelligent contract consensus and/or the right confirming process constructs a new V2X mutual information block.
After the block is constructed, the accounting management platform node writes it into the V2X mutual information block chain.
Optionally, the feedback of the right confirmation result to the vehicle node according to the V2X mutual information set after the agreement information confirms the intelligent contract consensus comprises:
and if the V2X interaction information set after the agreement information confirms that the intelligent contract consensus comprises V2X interaction information, the management platform node sends a right confirmation passing message to the vehicle node, otherwise, the management platform node sends a right confirmation failing message to the vehicle node.
In this embodiment, when the V2X mutual information containing the digital signature of the sending agent passes the management platform node alliance authentication, and all the management platform nodes in the management platform node alliance agree on the V2X mutual information content based on the information confirmation intelligent contract, the V2X mutual information of the vehicle node is confirmed to pass, and the V2X mutual information agreed by the agreement information confirmation intelligent contract collectively includes the V2X mutual information.
In a specific embodiment, the vehicle node may include a vehicle-mounted terminal, the vehicle-mounted terminal includes a V2X mutual information production device, and the V2X mutual information production device may include functional modules for security management, data processing, information interaction, and the like, and the functions of the modules are as follows:
a safety management module: the method comprises the steps that a public and private key pair of a vehicle is automatically generated based on vehicle attribute information such as license plate numbers, engine numbers, frame numbers, vehicle-mounted terminal information, vehicle owner information and application information, the vehicle-mounted terminal safely stores private keys, and the public keys are distributed to management platform nodes and vehicle nodes in a vehicle alliance chain; the method has the functions of HASH operation, digital signature, encryption and the like.
A data management module: according to the information interaction requirement of V2X and the syntax and semantic requirements of V2X interaction information synchronized by the management platform nodes, the vehicle nodes acquire information such as vehicle attributes, service data, communication modes, interaction objects and time stamps, and generate and store V2X interaction information.
A data processing module: respectively calling HASH operation, digital signature, encryption and other related functions of a security management module, and firstly obtaining a HASH value of the V2X interactive information; then, the HASH value is signed by a private key of the vehicle node to obtain a digital signature of the V2X mutual information; and finally, encrypting the V2X interactive information + the digital signature of the V2X interactive information by using a target management platform node public key which is about to receive the vehicle V2X interactive information right confirmation request to obtain the V2X interactive information delivery body.
The information interaction module: and according to the V2X information interaction requirement, the service data is distributed to the interaction objects through C-V2X or DSRC, and the V2X interaction information delivery body is sent to the management platform node with a closer geographical position through communication modes such as 4G, 5G, C-V2X or DSRC. And the method is also used for receiving the V2X mutual information grammar and semantic rules for managing the platform node synchronization.
In a particular embodiment, the management platform node may include: the method comprises the functional modules of data management, management platform node alliance authentication, bookkeeping management platform node determination, information confirmation intelligent contract consensus, V2X interaction information block construction, V2X interaction information writing block chain, information interaction and the like. The functions of the modules are as follows:
firstly, data management:
and if the vehicle node passes the management platform node alliance authentication, storing the V2X mutual information delivery body and V2X mutual information of the vehicle node, identifying the V2X mutual information as 'management platform node alliance authentication confirmation information', and forwarding the V2X mutual information identified as 'management platform node alliance authentication confirmation information' to all other management platform nodes in a safe mode.
And if the vehicle is not authenticated by the management platform node alliance, storing the V2X mutual information deliveries of the vehicle and identifying the vehicle as not authenticated by the management platform node alliance.
II, authentication of the management platform node alliance:
the management platform node receiving the V2X mutual information delivery body of the vehicle from the vehicle node is responsible for executing the following operations:
the management platform node decrypts the V2X interactive information delivery body of the vehicle by using a private key of the management platform node;
verifying the digital signature of the vehicle using its public key;
and extracting the vehicle V2X mutual information in the decrypted V2X mutual information delivery body of the vehicle, calculating the HASH value of the vehicle, comparing the HASH value with the HASH value of the digital signature, and verifying that the two values are the same.
If the previous steps are passed, the V2X mutual information delivery body of the vehicle passes the authentication of the management platform node.
Thirdly, determining the nodes of the accounting management platform:
the management platform node alliance determines accounting management platform nodes according to the agreed rules, such as: and adopting a round value accounting system. The confirmed management platform node is called an accounting management platform node. And the accounting management platform node is responsible for realizing information confirmation intelligent contract consensus, constructing a V2X interactive information block, and writing the V2X interactive information block into a V2X interactive information block chain.
Fourthly, information confirmation intelligent contracts:
and collecting V2X interaction information marked as 'management platform node alliance authentication confirmation information' of all vehicles in a preset time period T of the system by the management platform node, and constructing a 'management platform node alliance authentication confirmation information' V2X interaction information set. Performing intelligent contract verification on each element in the management platform node alliance authentication confirmation information V2X interaction information set:
Fifthly, information confirmation intelligent contract consensus:
and collecting V2X interaction information marked as management platform node alliance authentication confirmation information of all vehicles in a preset time period T by the system by the node of the accounting management platform, and constructing a V2X interaction information set of the management platform node alliance authentication confirmation information.
Sixthly, constructing a V2X mutual information block:
and the accounting management platform node is responsible for constructing the V2X mutual information block.
Seven, V2X mutual information writing block chain
Eighthly, information interaction:
the management platform node performs information interaction with the vehicle node and other management platform nodes through communication modes such as 4G, 5G, C-V2X or DSRC.
The authorization method for V2X mutual information based on a alliance chain provided by the embodiment of the present invention is that when a vehicle node needs to perform V2X information interaction, a V2X mutual information delivery body is sent to a management platform node in the alliance chain, the management platform node determines whether V2X mutual information in the V2X mutual information delivery body passes alliance authentication of the management platform node, that is, it is determined that the management platform node receives the V2X mutual information securely and the V2X mutual information is provided by the vehicle node, and sends V2X mutual information authenticated by the management platform node alliance to all other management platform nodes in the management platform node alliance, including an accounting node, so that the accounting node can perform information confirmation intelligent contract consensus determination when acquiring all V2X mutual information authenticated by the management platform node alliance within a preset time period, and send the V2X mutual information set after contract information confirmation intelligent contract consensus to all other management platform nodes in the management platform node alliance And the other management platform nodes are written into the V2X mutual information block chain simultaneously to realize the authority confirmation of the vehicle node V2X mutual information and the traceability of the V2X mutual information or the authority confirmation process, so that the problems that the rights and interests of mutual information providers cannot be guaranteed and potential safety hazards are easily generated due to lack of authority confirmation management of the mutual information in the conventional V2X information interaction method are solved.
Example 2:
as shown in fig. 3, this embodiment provides an authorization determining method for V2X mutual information based on a federation chain, which is applied to a node of a billing management platform, and includes:
step S202: acquiring all V2X interaction information authenticated by a management platform node alliance in a preset time period as a V2X interaction information set, wherein accounting management platform nodes belong to the management platform node alliance;
step S204: judging whether the V2X mutual information set achieves the information confirmation intelligent contract consensus or not, and sending the V2X mutual information set achieving the information confirmation intelligent contract consensus to all other management platform nodes in the management platform node alliance;
step S206: and writing the V2X interaction information set which is agreed by the achievement information confirmation intelligent contract into the V2X interaction information block chain.
Optionally, the determining whether the V2X mutual information set achieves the information confirmation intelligent contract consensus may include:
verifying each V2X interaction information in the V2X interaction information set based on the information confirmation intelligent contract;
all verified V2X interactive information in the V2X interactive information set is used as a V2X interactive information verification set, the V2X interactive information verification set and the V2X interactive information set are sent to all other management platform nodes in a management platform node alliance, so that the other management platform nodes compare the V2X interactive information verification set acquired by the other management platform nodes based on the information confirmation intelligent contract with the received V2X interactive information verification set, and a common identification result is fed back to the accounting management platform node according to the comparison result;
receiving consensus results fed back by all other management platform nodes respectively, wherein the consensus results comprise approval or disapproval;
and if the agreeable proportion in the consensus result reaches a preset proportion, judging that the V2X mutual information set achieves the information confirmation intelligent contract consensus, and using the V2X mutual information verification set as the V2X mutual information set after the achieving information confirmation intelligent contract consensus.
Optionally, in the step of verifying each V2X interaction information in the V2X interaction information set based on the information confirmation smart contract, the verification condition at least includes one of the following conditions, which may include:
verifying whether the V2X interaction information conforms to a grammar rule;
verifying whether V2X interaction information conforms to semantic rules
Verifying whether the V2X interaction information conforms to real-time uniqueness;
and verifying whether the V2X interaction information conforms to the historical uniqueness.
Optionally, writing the V2X mutual information set after the agreement information confirms the intelligent contract consensus into the V2X mutual information block chain may include:
establishing a Merkle tree and acquiring a Merkle root based on the V2X interaction information set after the agreement information confirms the consensus of the intelligent contracts;
establishing a new V2X mutual information block based on the Merkle root and the V2X mutual information set after the achievement information confirms the consensus of the intelligent contract;
the new V2X mutual information chunk is written into the V2X mutual information chunk chain.
Example 3:
as shown in fig. 4, the present embodiment provides an authorization determining method for V2X mutual information based on a federation chain, which is applied to a vehicle node, and includes:
step S302: generating V2X interaction information which accords with a grammar rule and a semantic rule when the V2X information is interacted;
step S304: obtaining a V2X interactive information delivery body according to the V2X interactive information;
step S306: and sending the V2X interactive information delivery body to a management platform node, wherein the management platform node belongs to the management platform node alliance.
Example 4:
as shown in fig. 5, the present embodiment provides an authorization determining apparatus for V2X mutual information based on federation chain, including:
the delivery body acquisition module 21 is configured to acquire a V2X interaction information delivery body of a vehicle node, where a management platform node belongs to a management platform node alliance;
the alliance authentication judging module 22 is connected with the delivery body acquiring module 21 and is used for judging whether the V2X interactive information in the V2X interactive information delivery body passes the alliance authentication of the management platform nodes or not and sending the V2X interactive information passing the alliance authentication of the management platform nodes to all the management platform nodes in the management platform nodes alliance;
and the receiving feedback module 23 is connected with the alliance authentication judgment module 22 and is used for receiving the V2X interaction information set which is sent by the bookkeeping management platform node and is obtained after the agreement information confirms the consensus of the intelligent contract, and feeding back the right confirmation result to the vehicle node according to the V2X interaction information set which is obtained after the agreement information confirms the consensus of the intelligent contract, wherein the bookkeeping management platform node belongs to the management platform node alliance.
Optionally, the V2X mutual information delivery body is formed by encrypting the V2X mutual information and the digital signature of the V2X mutual information by the vehicle node by using the public key of the management platform node;
the federation authentication judgment module 22 may include:
the decryption unit is used for decrypting the V2X interactive information delivery body by adopting a private key of the decryption unit;
the verification unit is used for verifying the digital signature in the decrypted V2X interactive information delivery body by the management platform node;
the sending unit is used for sending the V2X interactive information delivery body and the decrypted V2X interactive information to all other management platform nodes in the management platform node alliance if the verification is successful;
and the receiving unit is used for receiving voting results of the V2X mutual information delivery body and the decrypted V2X mutual information respectively sent by all other management platform nodes in the management platform node alliance, and judging whether the V2X mutual information passes the management platform node alliance authentication or not according to the voting results.
Optionally, the method further comprises:
the setting module is used for setting or updating the grammar rule and the semantic rule of the V2X interaction information;
the sending module is used for sending the grammar rules and the semantic rules to the vehicle nodes;
the generating module is used for generating the V2X interaction information for the vehicle nodes according to the grammar rules and the semantic rules;
the receiving feedback module 23 is specifically configured to receive the V2X mutual information set after the agreement information confirms the intelligent contract consensus sent by the accounting management platform node, and send a right-confirming passing message to the vehicle node when the V2X mutual information set after the agreement information confirms the intelligent contract consensus includes the V2X mutual information, otherwise, the management platform node sends a right-confirming failing message to the vehicle node.
Example 5:
the embodiment provides a vehicle networking system, which comprises a management platform node and a vehicle node;
the management platform node is used for executing the authorization method of the V2X mutual information based on the alliance chain as the embodiment 1 or the embodiment 2;
the vehicle node is used for executing the authorization method based on the V2X mutual information of the alliance chain according to the implementation 3.
Embodiments 2 to 5 provide a method, an apparatus, and a system for determining authority of V2X mutual information based on a federation chain, when a vehicle node needs to perform V2X information interaction, sending a V2X mutual information delivery body to a management platform node in the federation chain, where the management platform node determines whether V2X mutual information in the V2X mutual information delivery body passes federation authentication of the management platform node, that is, determines that the management platform node receives the V2X mutual information securely and that the V2X mutual information is provided by the vehicle node, and sends V2X mutual information that passes the federation authentication of the management platform node to all other management platform nodes in the federation of management platform nodes, including the management node, so that when acquiring all V2X mutual information that passes the federation authentication of the management platform node in a preset time period, the management platform node performs information confirmation intelligent contract consensus determination on the V2X mutual information, and the V2X mutual information set after the agreement is confirmed to be identified by the intelligent contract is sent to all other management platform nodes in the management platform node alliance, and is written into the V2X mutual information block chain, so that the right of the vehicle node V2X mutual information is confirmed, and the traceability of the V2X mutual information or the right confirmation process is realized, and the problems that the rights of mutual information providers cannot be guaranteed and potential safety hazards are easily generated due to the lack of the right confirmation management of the mutual information in the existing V2X information mutual method are solved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. A method for determining authority of V2X interaction information based on a federation chain is applied to a management platform node and is characterized by comprising the following steps:
acquiring a V2X interactive information delivery body of a vehicle node, wherein the management platform node belongs to a management platform node alliance;
judging whether the V2X interactive information in the V2X interactive information delivery body passes through management platform node alliance authentication or not, and sending the V2X interactive information passing through the management platform node alliance authentication to all other management platform nodes in the management platform node alliance;
receiving an achievement information confirmed V2X interaction information set after the agreement of the intelligent contract sent by a billing management platform node, and feeding back a right confirmation result to the vehicle node according to the V2X interaction information set after the agreement of the intelligent contract is confirmed by the achievement information, wherein the billing management platform node belongs to a management platform node alliance;
the V2X mutual information delivery body is formed by encrypting the V2X mutual information and the digital signature of the V2X mutual information by the vehicle node by adopting the public key of the management platform node;
the judging whether the V2X interaction information in the V2X interaction information delivery body passes the management platform node alliance authentication comprises the following steps:
decrypting the V2X mutual information delivery body by using a private key of the delivery body;
the management platform node verifies the digital signature in the decrypted V2X mutual information delivery body;
if the verification is successful, sending the V2X interactive information delivery body and the decrypted V2X interactive information to all other management platform nodes in a management platform node alliance;
receiving voting results of the V2X mutual information delivery body and the decrypted V2X mutual information respectively sent by all other management platform nodes in a management platform node alliance, and judging whether the V2X mutual information passes the management platform node alliance authentication or not according to the voting results.
2. The alliance-chain based V2X interaction information validation method of claim 1, wherein prior to the step of obtaining a V2X interaction information delivery body for a vehicle node, the method further comprises:
setting or updating grammar rules and semantic rules of V2X interaction information;
sending the grammar rules and semantic rules to the vehicle node;
the V2X interaction information is generated by the vehicle node according to the grammar rule and the semantic rule;
the feedback of the authentication result to the vehicle node according to the V2X interaction information set after the confirmation of the intelligent contract consensus by the achievement information comprises the following steps:
if the V2X interaction information set after the agreement information confirms the intelligent contract consensus comprises the V2X interaction information, the management platform node sends a right confirmation passing message to the vehicle node, otherwise, the management platform node sends a right confirmation failing message to the vehicle node.
3. A method for determining authority of V2X mutual information based on a alliance chain is applied to a billing management platform node and is characterized by comprising the following steps:
acquiring all V2X interaction information authenticated by a management platform node alliance in a preset time period as a V2X interaction information set, wherein the bookkeeping management platform node belongs to the management platform node alliance;
judging whether the V2X interaction information set achieves information confirmation intelligent contract consensus or not, and sending the V2X interaction information set achieving the information confirmation intelligent contract consensus to all other management platform nodes in the management platform node alliance;
writing the V2X interaction information set of the achievement information confirmation intelligent contract consensus into a V2X interaction information block chain;
the judging whether the V2X mutual information set achieves information confirmation intelligent contract consensus comprises the following steps:
verifying each V2X interaction information in the V2X interaction information set based on an information validation smart contract;
taking all verified V2X interaction information in the V2X interaction information set as a V2X interaction information verification set, sending the V2X interaction information verification set and the V2X interaction information set to all other management platform nodes in the management platform node alliance, so that the other management platform nodes compare the V2X interaction information verification set obtained by the other management platform nodes based on the information confirmation intelligent contract with the received V2X interaction information verification set, and feed back a consensus result to the accounting management platform node according to the comparison result;
receiving consensus results respectively fed back by all other management platform nodes, wherein the consensus results comprise approval or disapproval;
and if the agreement proportion in the consensus result reaches a preset proportion, judging that the V2X mutual information set achieves information confirmation intelligent contract consensus, and using the V2X mutual information verification set as a V2X mutual information set after achieving the information confirmation intelligent contract consensus.
4. The alliance-chain-based V2X mutual information authorization method according to claim 3, wherein in the step of verifying each V2X mutual information in the V2X mutual information set based on the information confirmation smart contract, the verification condition at least includes one of the following conditions, including:
verifying whether the V2X interaction information conforms to a grammar rule;
verifying whether the V2X interaction information conforms to semantic rules;
verifying whether the V2X interaction information conforms to real-time uniqueness;
and verifying whether the V2X interaction information conforms to the historical uniqueness.
5. The method for determining authority of V2X mutual information based on alliance chain as claimed in claim 4, wherein the writing the V2X mutual information set after the agreement information confirmation intelligent contract consensus into V2X mutual information block chain includes:
establishing a Merkle tree and acquiring a Merkle root based on the V2X interaction information set after the achievement information confirms the consensus of the intelligent contracts;
constructing a new V2X mutual information block based on the Merkle root and the V2X mutual information set after the achievement information confirms the consensus of the intelligent contracts;
writing the new V2X mutual information chunk into a V2X mutual information chunk chain.
6. A method for determining authority of V2X mutual information based on a alliance chain is applied to a vehicle node and is characterized by comprising the following steps:
generating V2X interaction information which accords with a grammar rule and a semantic rule when the V2X information is interacted;
obtaining a V2X interactive information delivery body according to the V2X interactive information, wherein the V2X interactive information delivery body is formed by encrypting the V2X interactive information and the digital signature of the V2X interactive information by the vehicle node by adopting a public key of a management platform node;
sending the V2X mutual information delivery body to a management platform node, where the management platform node belongs to a management platform node alliance, and the V2X mutual information delivery body is used to trigger the management platform node to decrypt the V2X mutual information delivery body by using its own private key, verify a digital signature in the decrypted V2X mutual information delivery body, and after the verification is successful, send the V2X mutual information delivery body and the decrypted V2X mutual information to all other management platform nodes in the management platform node alliance, and receive voting results of the V2X mutual information delivery body and the decrypted V2X mutual information sent by all other management platform nodes in the management platform node alliance, respectively, and determine whether the V2X mutual information passes through the management platform node authentication according to the voting results;
and receiving the affirmance result fed back by the management platform node.
7. An apparatus for determining authority of V2X interaction information based on federation chain, disposed in a management platform node, the apparatus comprising:
the delivery body acquisition module is used for acquiring a V2X interactive information delivery body of a vehicle node, wherein the management platform node belongs to a management platform node alliance;
a union authentication judgment module, connected to the delivery body acquisition module, configured to judge whether the V2X interaction information in the V2X interaction information delivery body passes through management platform node union authentication, and send the V2X interaction information that passes through management platform node union authentication to all management platform nodes in a management platform node union;
the receiving feedback module is connected with the alliance authentication judgment module and used for receiving the V2X interaction information set which is sent by the node of the accounting management platform and is confirmed by the achievement information, the V2X interaction information set is confirmed by the achievement information, the right confirmation result is fed back to the vehicle node, and the node of the accounting management platform belongs to the alliance of the management platform nodes;
the V2X mutual information delivery body is formed by encrypting the V2X mutual information and the digital signature of the V2X mutual information by the vehicle node by adopting a public key of the management platform node;
the alliance authentication judgment module comprises:
the decryption unit is used for decrypting the V2X interactive information delivery body by adopting a private key of the decryption unit;
the verification unit is used for verifying the digital signature in the decrypted V2X interactive information delivery body by the management platform node;
the sending unit is used for sending the V2X interactive information delivery body and the decrypted V2X interactive information to all other management platform nodes in the management platform node alliance if the verification is successful;
and the receiving unit is used for receiving voting results of the V2X mutual information delivery body and the decrypted V2X mutual information respectively sent by all other management platform nodes in the management platform node alliance, and judging whether the V2X mutual information passes the management platform node alliance authentication or not according to the voting results.
8. The vehicle networking system is characterized by comprising a management platform node and a vehicle node;
the management platform node is used for executing the method for determining authority of V2X mutual information based on alliance chain as claimed in any one of claims 1-2 or claims 3-5;
the vehicle node comprises a vehicle-mounted terminal, and the vehicle-mounted terminal is used for executing the authorization method based on the V2X mutual information of the alliance chain according to claim 6.
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