CN110266635B - Vehicle information sharing method and device, computer readable medium and electronic equipment - Google Patents
Vehicle information sharing method and device, computer readable medium and electronic equipment Download PDFInfo
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- CN110266635B CN110266635B CN201810388015.8A CN201810388015A CN110266635B CN 110266635 B CN110266635 B CN 110266635B CN 201810388015 A CN201810388015 A CN 201810388015A CN 110266635 B CN110266635 B CN 110266635B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
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- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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Abstract
The embodiment of the invention provides a vehicle information sharing method and device based on a block chain, a computer readable medium and electronic equipment. The vehicle information sharing method based on the block chain comprises the following steps: obtaining a first signature result obtained after vehicle information is signed, wherein the vehicle information of each vehicle is signed through a key corresponding to each vehicle; signing the first signature result and the platform information of the vehicle platform side through a key corresponding to the vehicle platform side to obtain a second signature result; a tile is generated based on the second signature result and the generated tile is broadcast into a blockchain network. The technical scheme of the embodiment of the invention shares the vehicle information through the decentralized block chain network, and solves the unreliable problem caused by centralized management of the vehicle information by a vehicle platform side in the prior art.
Description
Technical Field
The invention relates to the technical field of computers and communication, in particular to a vehicle information sharing method and device based on a block chain, a computer readable medium and electronic equipment.
Background
At present, the automobile transaction market is increasingly active, but the problem of trust of a vehicle to vehicle information in a transaction process is difficult to solve, for example, the authenticity of the vehicle information by a buyer is not clear, and the control rights of information such as vehicle use conditions, maintenance records, mileage and the like belong to various centralized service platforms (such as various automobile dealers, after-sales service providers and the like), under the circumstance, an operation platform is prompted to tamper the vehicle information for unilateral benefits, and further the authenticity of the vehicle information cannot be confirmed.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present invention and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
Disclosure of Invention
The embodiment of the invention aims to provide a vehicle information sharing method and device based on a block chain, a computer readable medium and electronic equipment, so that the problem that the authenticity of vehicle information cannot be guaranteed is solved at least to a certain extent.
Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.
According to an aspect of an embodiment of the present invention, there is provided a block chain-based vehicle information sharing method, including: obtaining a first signature result obtained after vehicle information is signed, wherein the vehicle information of each vehicle is signed through a key corresponding to each vehicle; signing the first signature result and the platform information of the vehicle platform side through a key corresponding to the vehicle platform side to obtain a second signature result; a tile is generated based on the second signature result and the generated tile is broadcast into a blockchain network.
According to an aspect of an embodiment of the present invention, there is provided a block chain-based vehicle information sharing apparatus including: the system comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring a first signature result obtained after vehicle information is signed, and the vehicle information of each vehicle is signed by a key corresponding to each vehicle; the signature unit is used for signing the first signature result and the platform information of the vehicle platform side through a key corresponding to the vehicle platform side to obtain a second signature result; a generation processing unit configured to generate a block based on the second signature result and broadcast the generated block into a blockchain network.
In some embodiments of the present invention, based on the foregoing scheme, the signature unit is configured to: signing the first signature result and the platform information of the vehicle platform side through a private key of the vehicle platform side; or signing the first signature result and the platform information of the vehicle platform side through the symmetric key of the vehicle platform side.
In some embodiments of the present invention, based on the foregoing solution, the block chain-based vehicle information sharing apparatus further includes: the verification unit is used for verifying the validity of the content contained in the block through a key corresponding to a vehicle platform side and a key corresponding to a vehicle when the block generated by other blockchain nodes and broadcasted by other blockchain nodes in the blockchain network is received; an adding unit, configured to add the block to a block chain when the verification unit passes validity verification of the content included in the block.
In some embodiments of the present invention, based on the foregoing solution, the block chain-based vehicle information sharing apparatus further includes: a first discarding unit configured to discard the block when the content included in the block is not verified.
In some embodiments of the present invention, based on the foregoing solution, the block chain-based vehicle information sharing apparatus further includes: a verification unit configured to verify validity of the content included in the block after the verification unit passes validity verification of the content included in the block; the adding unit is used for adding the block to a block chain when the validity check of the content contained in the block by the checking unit passes.
In some embodiments of the present invention, based on the foregoing scheme, the checking unit is configured to: checking whether the numerical value of each parameter contained in the block is within a preset interval corresponding to each parameter, wherein each parameter comprises each use parameter of the vehicle; and if the numerical value of each parameter contained in the block is in the preset interval corresponding to each parameter, determining that the validity check on the content contained in the block passes.
In some embodiments of the present invention, based on the foregoing solution, the block chain-based vehicle information sharing apparatus further includes: a second obtaining unit, configured to obtain existing numerical information of each parameter from the blockchain network; and the statistical analysis unit is used for performing statistical analysis on the existing numerical information of each parameter acquired by the second acquisition unit to obtain a predetermined interval corresponding to each parameter.
In some embodiments of the invention, based on the foregoing scheme, the statistical analysis unit is configured to: and respectively counting the preset intervals corresponding to the parameters corresponding to the vehicles of various types aiming at the vehicles of various types.
In some embodiments of the present invention, based on the foregoing solution, the block chain-based vehicle information sharing apparatus further includes: and the broadcasting unit is used for broadcasting the adjusted interval range to the block chain network when detecting that the user adjusts the preset interval.
In some embodiments of the present invention, based on the foregoing solution, the block chain-based vehicle information sharing apparatus further includes: and the second discarding unit is used for discarding the block when the validity of the content contained in the block is not verified.
In some embodiments of the present invention, based on the foregoing solution, the first obtaining unit is further configured to: acquiring activity data of each vehicle, wherein the activity data comprises maintenance records; the signature unit is further configured to: and signing the activity data of each vehicle through a key corresponding to the vehicle platform side, and broadcasting the signature data to the block chain network.
In some embodiments of the present invention, based on the foregoing scheme, the vehicle information of each vehicle is signed by a private key of each vehicle, or the vehicle information of each vehicle is signed by a symmetric key of each vehicle.
According to an aspect of an embodiment of the present invention, there is provided a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the blockchain-based vehicle information sharing method as described in the above embodiments.
According to an aspect of an embodiment of the present invention, there is provided an electronic apparatus including: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the blockchain-based vehicle information sharing method as described in the above embodiments.
In the technical solutions provided in some embodiments of the present invention, a first signature result obtained after vehicle information is signed is obtained, and the first signature result and platform information of a vehicle platform side are signed by a key corresponding to the vehicle platform side to obtain a second signature result, and then a block is generated based on the second signature result, and the generated block is broadcasted to a block chain network, so that vehicle information can be shared through a decentralized block chain network, and the unreliable problem caused by centralized management of vehicle information by a vehicle platform side (such as an automobile dealer, an after-sales service provider, and the like) in the prior art is solved. Meanwhile, the vehicle information is signed by the key corresponding to each vehicle, so that the problem that the vehicle platform side tampers with the vehicle information can be avoided; similarly, since the vehicle platform side also signs the first signature result and the platform information, the problem that the platform side information and the first signature result are subjected to illegal tampering can also be avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic diagram illustrating an exemplary system architecture of a block chain-based vehicle information sharing method or a block chain-based vehicle information sharing apparatus to which an embodiment of the present invention may be applied;
FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use with the electronic device to implement an embodiment of the invention;
FIG. 3 schematically illustrates a flow diagram of a blockchain-based vehicle information sharing method according to one embodiment of the present invention;
FIG. 4 schematically illustrates a flow diagram of a blockchain-based vehicle information sharing method according to another embodiment of the present invention;
FIG. 5 schematically illustrates a flow diagram of a blockchain-based vehicle information sharing method according to yet another embodiment of the present invention;
FIG. 6 illustrates a system architecture diagram of a blockchain-based vehicle information sharing scheme, according to an embodiment of the present invention;
fig. 7 illustrates a flowchart of a block chain-based vehicle information sharing method according to still another embodiment of the present invention;
FIG. 8 shows a flow diagram for processing data in a blockchain according to an embodiment of the invention;
fig. 9 illustrates a flowchart of a block chain-based vehicle information sharing method according to still another embodiment of the present invention;
fig. 10 schematically shows a block diagram of a block chain-based vehicle information sharing apparatus according to an embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations or operations have not been shown or described in detail to avoid obscuring aspects of the invention.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
Fig. 1 shows a schematic diagram of an exemplary system architecture 100 to which a blockchain-based vehicle information sharing method or a blockchain-based vehicle information sharing apparatus according to an embodiment of the present invention may be applied.
As shown in fig. 1, the system architecture 100 may include one or more of terminal devices 101, 102, 103, and a server 105. The terminal devices 101, 102, 103 and the server 105 may communicate via a wired communication link or a wireless communication link.
It should be understood that the number of terminal devices, networks, and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation. For example, server 105 may be a server cluster comprised of multiple servers, or the like.
The user may use the terminal devices 101, 102, 103 to interact with the server 105 to receive or send messages or the like. The terminal devices 101, 102, 103 may be various electronic devices having a display screen, including but not limited to smart phones, tablet computers, portable computers, desktop computers, and the like. The server 105 may act as a blockchain node in the blockchain network 104 to interact with other blockchain nodes in the blockchain network 104.
The server 105 may be a server that provides various services. For example, the server 105 may be a server on the vehicle platform side, the server on the vehicle platform side serves as a node in the block chain network, and the vehicle user may sign the vehicle information by using the terminal device 103 (which may also be the terminal device 101 or 102) to obtain a first signature result, for example, the vehicle information may be signed by using a private key of the vehicle. After receiving the first signature result, the server 105 may sign the first signature result and the information of the vehicle platform again through the private key of the vehicle platform side to obtain a second signature result, and then the server 105 may generate a block according to the second signature result and broadcast the generated block to the block chain network 104, so as to share the vehicle information through the decentralized block chain network, thereby solving the unreliable problem caused by centralized management of the vehicle information by the vehicle platform side in the prior art.
It should be noted that the block chain-based vehicle information sharing method provided by the embodiment of the present invention is generally executed by the server 105, and accordingly, the block chain-based vehicle information sharing apparatus is generally disposed in the server 105. However, in other embodiments of the present invention, the terminal may also have a similar function as the server, so as to execute the block chain-based vehicle information sharing scheme provided by the embodiments of the present invention.
FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use with the electronic device to implement an embodiment of the invention.
It should be noted that the computer system 200 of the electronic device shown in fig. 2 is only an example, and should not bring any limitation to the functions and the scope of the application of the embodiment of the present invention.
As shown in fig. 2, the computer system 200 includes a Central Processing Unit (CPU)201 that can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM)202 or a program loaded from a storage section 208 into a Random Access Memory (RAM) 203. In the RAM 203, various programs and data necessary for system operation are also stored. The CPU 201, ROM 202, and RAM 203 are connected to each other via a bus 204. An input/output (I/O) interface 205 is also connected to bus 204.
The following components are connected to the I/O interface 205: an input portion 206 including a keyboard, a mouse, and the like; an output section 207 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 208 including a hard disk and the like; and a communication section 209 including a network interface card such as a LAN card, a modem, or the like. The communication section 209 performs communication processing via a network such as the internet. A drive 210 is also connected to the I/O interface 205 as needed. A removable medium 211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 210 as necessary, so that a computer program read out therefrom is mounted into the storage section 208 as necessary.
In particular, according to an embodiment of the present invention, the processes described below with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the invention include a computer program product comprising a computer program embodied on a computer-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 209 and/or installed from the removable medium 211. The computer program executes various functions defined in the system of the present application when executed by a Central Processing Unit (CPU) 201.
It should be noted that the computer readable medium shown in the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method as described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 3 to 5.
The implementation details of the technical scheme of the embodiment of the invention are explained in detail as follows:
fig. 3 schematically shows a flowchart of a blockchain-based vehicle information sharing method according to an embodiment of the present invention, which is applied to the electronic device described in the foregoing embodiment, for example, the execution subject of the vehicle information sharing method may be a server on the vehicle platform side, which serves as a node in a blockchain network. Referring to fig. 3, the method for sharing vehicle information at least includes steps S310 to S330, which are described in detail as follows:
in step S310, a first signature result obtained after the vehicle information is signed is obtained, where the vehicle information of each vehicle is signed by a key corresponding to each vehicle.
In one embodiment of the invention, an account may be assigned for each vehicle and a pair of asymmetric keys may be created, and the vehicle information of each vehicle may be signed by the private key of each vehicle. In another embodiment of the present invention, a symmetric key may also be created, such that the vehicle information of each vehicle may be signed by the symmetric key of each vehicle.
In one embodiment of the present invention, the vehicle information may be vehicle basic information (such as a frame number, an engine number, a vehicle condition, etc.), vehicle owner information, and the like.
In step S320, the first signature result and the platform information of the vehicle platform side are signed by a key corresponding to the vehicle platform side, so as to obtain a second signature result.
In an embodiment of the present invention, the first signature result and the platform information of the vehicle platform side may be signed by a private key of the vehicle platform side, or the first signature result and the platform information of the vehicle platform side may also be signed by a symmetric key of the vehicle platform side.
In one embodiment of the present invention, the vehicle platform side may be an automotive manufacturer, an automotive vendor, an after-market service side, and the like. The platform information of the vehicle platform side may be basic information of the vehicle platform side, such as a name, an address, and the like.
In step S330, a tile is generated based on the second signature result, and the generated tile is broadcast into a tile chain network.
The technical scheme of the embodiment shown in fig. 3 enables the vehicle information to be shared through a decentralized blockchain network, and solves the unreliable problem caused by centralized management of the vehicle information by a vehicle platform side (such as an automobile dealer, an after-sales service provider and the like) in the prior art. Meanwhile, the vehicle information is signed by the key corresponding to each vehicle, so that the problem that the vehicle platform side tampers with the vehicle information can be avoided; similarly, since the vehicle platform side also signs the first signature result and the platform information, the problem that the platform side information and the first signature result are subjected to illegal tampering can also be avoided.
Based on the technical solution shown in fig. 3, in an embodiment of the present invention, the method may further include the following steps: acquiring activity data of each vehicle, wherein the activity data comprises maintenance records; and signing the activity data of each vehicle through a key corresponding to the vehicle platform side, and broadcasting the signature data to the block chain network.
In this embodiment, the activity data of the vehicle is signed by using the key corresponding to the vehicle platform side and is broadcast to the blockchain network, so that the activity data (such as maintenance records) of each vehicle can be shared in the blockchain network to ensure that the vehicle activity data is trusted, and the unreliable problem caused by centralized management of the activity data of the vehicle by using the vehicle platform side in the prior art is solved.
Fig. 4 schematically shows a flowchart of a block chain-based vehicle information sharing method according to another embodiment of the present invention.
Referring to fig. 4, a block chain-based vehicle information sharing method according to another embodiment of the present invention includes the steps of:
step S410, if the block generated by the other blockchain node broadcast by the other blockchain node in the blockchain network is received, performing validity verification on the content included in the block through the key corresponding to the vehicle platform and the key corresponding to the vehicle.
In an embodiment of the present invention, the block link points in the block chain network may all generate blocks by the solution of the embodiment shown in fig. 3. Based on this, the process of performing validity verification on the content contained in the block through the key corresponding to the vehicle platform side and the key corresponding to the vehicle may be: and firstly, carrying out validity verification through a key corresponding to the vehicle platform side, and then carrying out validity verification through a key corresponding to the vehicle. If the private key of the vehicle platform side is used when the vehicle platform side carries out signature, the public key of the vehicle platform side is needed to be used when the legality is verified; if the symmetric key of the vehicle platform side is used by the vehicle platform side for signing, the symmetric key is also required to be used for verification during validity verification. Similarly, if the vehicle information is signed by the private key of each vehicle, the public key of each vehicle needs to be used in the validity verification; if the vehicle information is signed by the symmetric key of each vehicle, the symmetric key of each vehicle needs to be used in the validity verification.
In step S420, if the validity of the content included in the block passes the verification, the block is added to the block chain.
In one embodiment of the invention, after a tile is added to the blockchain, a message that the addition was successful may be broadcast into the blockchain network.
In an embodiment of the present invention, based on the technical solution shown in fig. 4, if the content contained in the block is not verified, the block is discarded, so that it is possible to avoid that the shared vehicle information is unreliable due to writing illegal data into the block chain.
Fig. 5 schematically shows a flowchart of a block chain-based vehicle information sharing method according to still another embodiment of the present invention.
Referring to fig. 5, a block chain-based vehicle information sharing method according to still another embodiment of the present invention, on the basis of including step S410 shown in fig. 4, further includes the steps of:
in step S510, if the validity of the content contained in the block is verified, the validity of the content contained in the block is checked.
In one embodiment of the present invention, checking the validity of the content contained in the block comprises: checking whether the numerical value of each parameter contained in the block is within a preset interval corresponding to each parameter, wherein each parameter comprises each use parameter of the vehicle; and if the numerical value of each parameter contained in the block is in the preset interval corresponding to each parameter, determining that the validity check on the content contained in the block passes.
In this embodiment, since each parameter is normally within a certain interval, if the parameter value is not within the corresponding interval, it indicates that the parameter value may be invalid. Thus, after the contents contained in the block are verified, the validity of the contents contained in the block can be checked. Such as checking the parameters of the service life of the vehicle, mileage, oil consumption and the like.
In step S520, if the validity check on the content included in the block passes, the block is added to the block chain.
In one embodiment of the invention, after a tile is added to the blockchain, a message that the addition was successful may be broadcast into the blockchain network.
In an embodiment of the present invention, based on the technical solution shown in fig. 5, if the validity of the content contained in the block is not verified, the block is discarded, and thus, it may be avoided that invalid data is written into the block chain to cause unreliable shared vehicle information.
In an embodiment of the present invention, the predetermined interval corresponding to the parameter may be preset or determined through statistical analysis. For example, the existing numerical information of each parameter may be obtained from the blockchain network, and then the obtained existing numerical information of each parameter is subjected to statistical analysis to obtain the predetermined interval corresponding to each parameter.
In an embodiment of the present invention, since the relevant parameters of the vehicles of different models may be different, the predetermined intervals of the parameters corresponding to the vehicles of different models may be respectively counted for the vehicles of different models, so as to ensure that the predetermined interval corresponding to each parameter can be obtained for each vehicle of different models, thereby improving the accuracy of checking the validity of the parameter value.
In one embodiment of the present invention, if the user's adjustment of the predetermined interval is detected, the adjusted interval range is broadcasted to the blockchain network. According to the technical scheme of the embodiment, after the user artificially adjusts the preset interval corresponding to the parameter, the adjusted interval range can be shared in the block chain network, so that decentralized management is realized.
Details of implementation of the sharing scheme of the vehicle information according to the embodiment of the present invention are further described below with reference to fig. 6 to 9.
In one embodiment of the invention, an account may be assigned for each vehicle, a pair of asymmetric keys created, and the vehicle information signed using a private key and submitted to at least one platform operator. The vehicle information mainly includes: frame number, engine number, vehicle condition, vehicle owner information, etc.
Meanwhile, an account may be allocated for each platform operator (e.g., an automobile manufacturer, a vendor, an after-market service provider, etc.), a pair of asymmetric keys may be created, a plurality of pieces of vehicle information may be signed using a platform private key, and then a block may be formed and broadcast to each platform in the blockchain network (each platform operator forms each node of the blockchain network). After each node on the blockchain network receives the broadcasted block, the public key of the platform side sending the block and the public key of each vehicle can be used for carrying out validity check on data in the block, and if the check is passed, the block can be added to the blockchain.
Specifically, as shown in fig. 6, for a vehicle 601a, the vehicle information may be signed by using an account private key corresponding to the vehicle 601a, and then uploaded to a platform operator 602a, and the platform operator 602a signs the platform operator information and the signed vehicle information again by using its own private key, and then generates a block broadcast to a block chain network 603.
The above process is shown in fig. 7, and includes the following steps:
step S710: the method comprises the steps that an account private key corresponding to a vehicle is used for signing vehicle information, and then the vehicle information is uploaded to a platform operator;
step S720: the platform operator re-signs the signed vehicle information(s) and platform information using the platform private key;
step S730: the platform operator generates the blocks according to the re-signed result and then broadcasts the blocks to the block chain network.
In one embodiment of the present invention, the vehicle information includes vehicle basic information (such as a frame number, an engine number, a vehicle condition, etc.), vehicle owner information, and the like. The basic information of the vehicle and the information of the vehicle owner are provided for the platform operator after being signed by the private key of the vehicle account of the individual of the vehicle owner.
In one embodiment of the invention, the vehicle repair and maintenance record may be signed by the platform operator using the platform private key and broadcast throughout the blockchain network. Specifically, as shown in step S810 in fig. 8, if the blockchain has static information of the vehicle (i.e., basic information of the vehicle), the static information can be read out and edited (e.g., adding a maintenance record, etc.) and then broadcasted to the blockchain network again.
In addition, the information such as the service life of the vehicle, the mileage, the fuel consumption and the like is only allowed to increase within a reasonable interval, the data beyond the interval is considered to be illegal data, and each node in the block chain network does not accept the block information containing the illegal data.
In an embodiment of the present invention, the platform operator may obtain the relevant data of the same type of automobile from the blockchain network, so as to obtain the reasonable interval through statistics. Specifically, as shown in fig. 8, the method includes step S820, counting variation information of the vehicle, such as mileage, fuel consumption, maintenance information, etc., from the block chain; step S830, a reference interval of the input value is obtained through statistical analysis, and thus the deviation when data is entered can be reduced. In addition, if the interval is artificially adjusted, it must be broadcasted into the entire block network.
The overall implementation flow of the vehicle information sharing method according to the embodiment of the present invention is shown in fig. 9, where the operation of broadcasting the block to the platform in the block chain network mainly includes: and acquiring the digitally signed vehicle information, then signing the platform information and the signed vehicle information again through a secret key of the platform to obtain a data block, and further broadcasting the data block in the block chain network.
The operation of the platform for receiving broadcasted blocks in the blockchain network is mainly as follows: receiving the block, and then performing step S901, i.e. discarding the non-longest bifurcation based on the consensus mechanism of the block chain; step S902, the digital signature of the platform information and the digital signature of the vehicle information in the block are verified. This block is accepted when all signatures pass the check and added to the block chain.
In the vehicle information sharing scheme based on the block chain in the embodiment of the invention, because the vehicle account and the platform have the unique key signature, the vehicle information can be prevented from being tampered and forged, and meanwhile, the nodes in the block chain network can verify the signature through the key, so that the corresponding block can not be accepted when the signature verification fails. In addition, the blockchain can record each item of vehicle activity data (such as unscheduled vehicle maintenance and service activities), and the blockchain only has additional operation, so that the change of each item of vehicle information can be traced. Meanwhile, each platform operator can synchronize the vehicle information through the block chain network, so that the inquiry of the vehicle information is not dependent on other platforms, and the efficient, safe and reliable non-centralized vehicle information sharing service is realized.
In a specific application scenario of the present invention, the technical solution of the above embodiment of the present invention can solve the following scenario requirements: the new vehicle buyer can inquire reliable vehicle use information of the same vehicle, including information such as public praise and vehicle use experience, and the information is used as a vehicle selection reference before buying; the new vehicle seller can inquire reliable vehicle transaction information of the same vehicle, such as selling price, selling amount statistics and the like; the used-vehicle agent and the buyer can inquire reliable vehicle maintenance records as evaluation basis.
The following describes an embodiment of the apparatus of the present invention, which may be used to execute the block chain-based vehicle information sharing method in the above-described embodiment of the present invention. For details that are not disclosed in the embodiments of the apparatus of the present invention, please refer to the embodiments of the block chain-based vehicle information sharing method of the present invention.
Fig. 10 schematically shows a block diagram of a block chain-based vehicle information sharing apparatus according to an embodiment of the present invention.
Referring to fig. 10, a block chain-based vehicle information sharing apparatus 100 according to an embodiment of the present invention includes: a first acquisition unit 1002, a signature unit 1004, and a generation processing unit 1006.
The first obtaining unit 1002 is configured to obtain a first signature result obtained after vehicle information is signed, where the vehicle information of each vehicle is signed by a key corresponding to each vehicle; the signature unit 1004 is configured to sign the first signature result and the platform information of the vehicle platform side by using a key corresponding to the vehicle platform side, so as to obtain a second signature result; the generation processing unit 1006 is configured to generate a block based on the second signature result and broadcast the generated block into a blockchain network.
In an embodiment of the present invention, the signature unit 1004 is configured to: signing the first signature result and the platform information of the vehicle platform side through a private key of the vehicle platform side; or signing the first signature result and the platform information of the vehicle platform side through the symmetric key of the vehicle platform side.
In an embodiment of the present invention, the first obtaining unit 1002 is further configured to: acquiring activity data of each vehicle, wherein the activity data comprises maintenance records; the signature unit 1004 is further configured to: and signing the activity data of each vehicle through a key corresponding to the vehicle platform side, and broadcasting the signature data to the block chain network.
In one embodiment of the present invention, the vehicle information of each vehicle is signed by a private key of each vehicle, or the vehicle information of each vehicle is signed by a symmetric key of each vehicle.
In one embodiment of the present invention, based on the foregoing solution, the vehicle information sharing apparatus 100 may further include: a verification unit and an adding unit. The verification unit is used for verifying the validity of the content contained in the block through a key corresponding to a vehicle platform side and a key corresponding to a vehicle when the block generated by other blockchain nodes and broadcast by other blockchain nodes in the blockchain network is received; the adding unit is used for adding the block into the block chain when the verification unit passes the validity verification of the content contained in the block.
In one embodiment of the present invention, based on the foregoing solution, the vehicle information sharing apparatus 100 may further include: a first discarding unit configured to discard the block when the content included in the block is not verified.
In one embodiment of the present invention, based on the foregoing solution, the vehicle information sharing apparatus 100 may further include: a verification unit configured to verify validity of the content included in the block after the verification unit passes validity verification of the content included in the block; the adding unit is used for adding the block to a block chain when the validity check of the content contained in the block by the checking unit passes.
In an embodiment of the present invention, based on the foregoing scheme, the checking unit is configured to: checking whether the numerical value of each parameter contained in the block is within a preset interval corresponding to each parameter, wherein each parameter comprises each use parameter of the vehicle; and if the numerical value of each parameter contained in the block is in the preset interval corresponding to each parameter, determining that the validity check on the content contained in the block passes.
In one embodiment of the present invention, based on the foregoing solution, the vehicle information sharing apparatus 100 may further include: a second acquisition unit and a statistical analysis unit. The second obtaining unit is configured to obtain existing numerical information of each parameter from the blockchain network; the statistical analysis unit is configured to perform statistical analysis on the existing numerical information of each parameter acquired by the second acquisition unit to obtain a predetermined interval corresponding to each parameter.
In an embodiment of the present invention, based on the foregoing scheme, the statistical analysis unit is configured to: and respectively counting the preset intervals corresponding to the parameters corresponding to the vehicles of various types aiming at the vehicles of various types.
In one embodiment of the present invention, based on the foregoing solution, the vehicle information sharing apparatus 100 may further include: and the broadcasting unit is used for broadcasting the adjusted interval range to the block chain network when detecting that the user adjusts the preset interval.
In one embodiment of the present invention, based on the foregoing solution, the vehicle information sharing apparatus 100 may further include: and the second discarding unit is used for discarding the block when the validity of the content contained in the block is not verified.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the invention. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiment of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiment of the present invention.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (22)
1. A vehicle information sharing method based on a block chain is characterized by comprising the following steps:
obtaining a first signature result obtained after vehicle information is signed, wherein the vehicle information of each vehicle is signed through a key corresponding to each vehicle;
signing the first signature result and the platform information of the vehicle platform side through a key corresponding to the vehicle platform side to obtain a second signature result;
generating a tile based on the second signature result and broadcasting the generated tile into a blockchain network;
the vehicle information sharing method further includes:
if the block generated by other block chain nodes and broadcasted by other block chain nodes in the block chain network is received, performing validity verification on the content contained in the block through a key corresponding to a vehicle platform side and a key corresponding to a vehicle;
and if the validity verification of the content contained in the block passes, adding the block into a block chain.
2. The block chain-based vehicle information sharing method according to claim 1, wherein signing the first signature result and the platform information of the vehicle platform side by a key corresponding to the vehicle platform side includes:
signing the first signature result and the platform information of the vehicle platform side through a private key of the vehicle platform side; or
And signing the first signature result and the platform information of the vehicle platform side through the symmetric key of the vehicle platform side.
3. The block chain-based vehicle information sharing method according to claim 1, further comprising, after passing validity verification of contents contained in the block and before adding the block to a block chain:
checking the validity of the content contained in the block;
if the validity check of the content contained in the block passes, the step of adding the block to the chain of blocks is performed.
4. The block chain-based vehicle information sharing method according to claim 3, wherein checking validity of contents contained in the block includes:
checking whether the numerical value of each parameter contained in the block is within a preset interval corresponding to each parameter, wherein each parameter comprises each use parameter of the vehicle;
and if the numerical value of each parameter contained in the block is in the preset interval corresponding to each parameter, determining that the validity check on the content contained in the block passes.
5. The block chain-based vehicle information sharing method according to claim 4, characterized by further comprising:
acquiring the existing numerical information of each parameter from the block chain network;
and carrying out statistical analysis on the acquired existing numerical information of each parameter to obtain a preset interval corresponding to each parameter.
6. The block chain-based vehicle information sharing method according to claim 5, wherein performing statistical analysis on the obtained existing numerical information of each parameter to obtain a predetermined interval corresponding to each parameter includes:
and respectively counting the preset intervals of each parameter corresponding to the vehicles of various types aiming at the vehicles of various types.
7. The block chain-based vehicle information sharing method according to claim 4, characterized by further comprising:
and if the user is detected to adjust the preset interval, broadcasting the adjusted interval range to the block chain network.
8. The block chain-based vehicle information sharing method according to claim 1, further comprising:
acquiring activity data of each vehicle, wherein the activity data comprises maintenance records;
and signing the activity data of each vehicle through a key corresponding to the vehicle platform side, and broadcasting the signature data to the block chain network.
9. The block chain-based vehicle information sharing method according to any one of claims 1 to 8, wherein the vehicle information of each vehicle is signed by a private key of each vehicle, or the vehicle information of each vehicle is signed by a symmetric key of each vehicle.
10. A block chain-based vehicle information sharing apparatus, comprising:
the system comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring a first signature result obtained after vehicle information is signed, and the vehicle information of each vehicle is signed by a key corresponding to each vehicle;
the signature unit is used for signing the first signature result and the platform information of the vehicle platform side through a key corresponding to the vehicle platform side to obtain a second signature result;
a generation processing unit configured to generate a block based on the second signature result and broadcast the generated block into a blockchain network;
the verification unit is used for verifying the validity of the content contained in the block through a key corresponding to a vehicle platform side and a key corresponding to a vehicle when the block generated by other blockchain nodes and broadcasted by other blockchain nodes in the blockchain network is received;
an adding unit, configured to add the block to a block chain after the verification unit passes validity verification of the content included in the block.
11. The block chain-based vehicle information sharing apparatus according to claim 10, wherein the signature unit is configured to:
signing the first signature result and the platform information of the vehicle platform side through a private key of the vehicle platform side; or
And signing the first signature result and the platform information of the vehicle platform side through the symmetric key of the vehicle platform side.
12. The block chain-based vehicle information sharing apparatus according to claim 10, wherein the block chain-based vehicle information sharing apparatus further comprises:
a first discarding unit configured to discard the block when the content included in the block is not verified.
13. The block chain-based vehicle information sharing apparatus according to claim 10, further comprising: a verification unit configured to verify validity of the content included in the block after the verification unit passes verification of the content included in the block;
the adding unit is used for adding the block into the block chain after the validity check of the content contained in the block by the checking unit passes.
14. The block chain-based vehicle information sharing apparatus according to claim 13, wherein the check unit is configured to:
checking whether the numerical value of each parameter contained in the block is within a preset interval corresponding to each parameter, wherein each parameter comprises each use parameter of the vehicle;
and if the numerical value of each parameter contained in the block is in the preset interval corresponding to each parameter, determining that the validity check on the content contained in the block passes.
15. The block chain-based vehicle information sharing apparatus according to claim 14, wherein the block chain-based vehicle information sharing apparatus further comprises:
a second obtaining unit, configured to obtain existing numerical information of each parameter from the blockchain network;
and the statistical analysis unit is used for performing statistical analysis on the existing numerical information of each parameter acquired by the second acquisition unit to obtain a predetermined interval corresponding to each parameter.
16. The block chain-based vehicle information sharing apparatus according to claim 15, wherein the statistical analysis unit is configured to: and respectively counting the preset intervals corresponding to the parameters corresponding to the vehicles of various types aiming at the vehicles of various types.
17. The block chain-based vehicle information sharing apparatus according to claim 14, wherein the block chain-based vehicle information sharing apparatus further comprises:
and the broadcasting unit is used for broadcasting the adjusted interval range to the block chain network when detecting that the user adjusts the preset interval.
18. The block chain-based vehicle information sharing apparatus according to claim 14, wherein the block chain-based vehicle information sharing apparatus further comprises:
and the second discarding unit is used for discarding the block when the validity of the content contained in the block is not verified.
19. The block chain-based vehicle information sharing apparatus according to claim 10, wherein the first acquisition unit is further configured to: acquiring activity data of each vehicle, wherein the activity data comprises maintenance records;
the signature unit is further configured to: and signing the activity data of each vehicle through a key corresponding to the vehicle platform side, and broadcasting the signature data to the block chain network.
20. The block chain-based vehicle information sharing apparatus according to any one of claims 10 to 19, wherein the vehicle information of each vehicle is signed by a private key of each vehicle, or the vehicle information of each vehicle is signed by a symmetric key of each vehicle.
21. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out a blockchain-based vehicle information sharing method according to any one of claims 1 to 9.
22. An electronic device, comprising:
one or more processors;
a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the blockchain-based vehicle information sharing method according to any one of claims 1 to 9.
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| CN110717809A (en) * | 2019-10-09 | 2020-01-21 | 重庆特斯联智慧科技股份有限公司 | Vehicle transaction method and device based on big data, electronic equipment and computer readable medium |
| CN110852851B (en) * | 2019-11-14 | 2024-06-18 | 腾讯科技（深圳）有限公司 | Block chain-based vehicle sharing method, device and readable storage medium |
| CN110955919A (en) * | 2019-11-22 | 2020-04-03 | 腾讯科技（深圳）有限公司 | Data processing method based on block chain network, related device and storage medium |
| CN111179474B (en) * | 2019-12-31 | 2022-01-14 | 上海能塔智能科技有限公司 | Unlocking processing method and device for vehicle authenticated by user and electronic equipment |
| CN111522878B (en) * | 2020-04-14 | 2024-01-02 | 名商科技有限公司 | Block chain-based vehicle-mounted video processing method, device, computer and medium |
| CN111797138B (en) * | 2020-06-29 | 2024-07-19 | 北京荷月科技有限公司 | Trusted front-end link data query method and system |
| CN113408005B (en) * | 2021-06-04 | 2023-05-09 | 中国联合网络通信集团有限公司 | Auxiliary evaluation method, system, computer equipment and storage medium for automobile performance |
| CN118193805A (en) * | 2021-08-13 | 2024-06-14 | 支付宝(杭州)信息技术有限公司 | Vehicle information processing method, device and system based on block chain |
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