CN111935252B - Information updating method based on block chain and server - Google Patents

The application discloses an information updating method and a server based on a block chain, wherein the method comprises the following steps: acquiring a first broadcast message sent by an operator node from a block chain network; the second hash value is obtained by carrying out hash operation on a second code by the terminal, and the second code is obtained by coding the information of the second vehicle by the terminal according to a preset mode; the method comprises the steps of obtaining first storage information and second storage information which are stored in advance, coding the first storage information to obtain a third code and coding the second storage information to obtain a fourth code according to a preset mode; performing hash operation on the third code and the fourth code respectively to obtain a third hash value and a fourth hash value; sequencing the third hash value and the fourth hash value according to a preset time sequence to obtain a second sequencing result; and updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result.

Information updating method based on block chain and server

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information updating method and a server based on a block chain.

Background

At present, 10 new measures for the traffic management reform of the department of public security are announced and released by the department of public security. The 10 new measures comprise 5 types of services which can be accessed in different places and 5 convenient and fast services. The service of the remote communication comprises the following steps: the owner can update the original license plate number to other own vehicles of the same type, so that the owner can keep the original license plate number unchanged.

Because the user name in the block chain network is not the real name of the user, if the license plate number is updated in the block chain network mode, the confidentiality of the information is poor, the privacy information of the vehicle owner is easy to be revealed, and the user experience is poor.

Disclosure of Invention

Therefore, the information updating method and the server based on the block chain are provided to solve the problem that in the process of changing the vehicle number, the privacy information of the terminal is easily leaked, and the customer experience is poor.

In order to achieve the above object, a first aspect of the present application provides an information updating method based on a block chain, where the method includes: acquiring a first broadcast message sent by an operator node from a block chain network, wherein the first broadcast message comprises a first sequencing result, a first hash value and a second hash value, the first sequencing result is a result of sequencing the first hash value and the second hash value by a terminal inquired by the operator node, the first hash value is a value obtained by performing hash operation on a first code by the terminal, and the first code is a value obtained by encoding information of a first vehicle by the terminal according to a preset mode; the second hash value is obtained by carrying out hash operation on a second code by the terminal, and the second code is obtained by coding the information of the second vehicle by the terminal according to a preset mode; the method comprises the steps of obtaining first storage information and second storage information which are stored in advance, coding the first storage information to obtain a third code and coding the second storage information to obtain a fourth code according to a preset mode; performing hash operation on the third code and the fourth code respectively to obtain a third hash value and a fourth hash value; sequencing the third hash value and the fourth hash value according to a preset time sequence to obtain a second sequencing result; and updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result.

In some implementations, before the step of acquiring the first broadcast message sent by the operator node from the blockchain network, the method further includes: acquiring identity information of a user to which a terminal belongs in a mode of block chaining; distributing block chain information for the terminal according to the identity information, wherein the block chain information comprises a block chain identifier of the terminal, a public key and a private key of the terminal; and generating and sending a second broadcast message to the blockchain network according to the identity information and the blockchain information.

In some implementations, before the step of acquiring the first broadcast message sent by the operator node from the blockchain network, the method further includes: acquiring a vehicle information exchange request sent by a terminal from a block chain network, wherein the vehicle information exchange request comprises a block chain identifier, a license plate interchange identifier, a license plate number of a first vehicle and a license plate number of a second vehicle; when the type of the first vehicle is determined to be the same as that of the second vehicle and the city to which the first vehicle belongs is determined to be the same as that of the second vehicle, generating and sending a third broadcast message to a block chain network according to identity information of a user to which the terminal belongs and an inquiry request identifier, so that the operator node obtains the third broadcast message, wherein the inquiry request identifier is used for indicating the operator node to send an inquiry request to the terminal, and the information of the first vehicle and the information of the second vehicle fed back by the terminal are obtained.

In some implementations, updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sorting result and the first sorting result includes: if the following conditions are simultaneously satisfied: the second sorting result is the same as the first sorting result, the third hash value is the same as the first hash value, and the fourth hash value is the same as the second hash value; and updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the license plate interchange identification.

In some implementations, the information of the first vehicle includes hardware information of the first vehicle and a check-in time of the first vehicle, and the information of the second vehicle includes hardware information of the second vehicle and a check-in time of the second vehicle; the preset time sequence is a sequence generated according to the annual check time of the vehicle, or a sequence generated according to the purchase time of the vehicle.

In some implementations, updating the license plate number of the first vehicle and the license plate number of the second vehicle based on the license plate interchange identifier includes: replacing the license plate number of the second vehicle with the license plate number of the first vehicle according to the license plate interchange identification; meanwhile, replacing the license plate number of the first vehicle by the license plate number of the second vehicle; and keeping the hardware information of the first vehicle, the vehicle inspection time of the first vehicle, the hardware information of the second vehicle and the vehicle inspection time of the second vehicle unchanged.

In some implementations, after the step of updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sorting result and the first sorting result, the method further includes: sending a fourth broadcast message to the block chain network so that the vehicle inspection plant node can obtain and update the vehicle record information of the vehicle inspection plant node according to the fourth broadcast message; the fourth broadcast message comprises a block chain identifier of the terminal, identity information of a user to which the terminal belongs, a first hash value, a second hash value, an updated license plate number of the first vehicle and an updated license plate number of the second vehicle.

In order to achieve the above object, a second aspect of the present application provides an information updating method based on a block chain, including: acquiring a third broadcast message sent by a node of a vehicle management station from a block chain network, wherein the third broadcast message comprises identity information of a user to which a terminal belongs and a query request identifier, and the query request identifier is used for indicating the node to send a query request to the terminal so as to obtain information of a first vehicle and information of a second vehicle fed back by the terminal; searching an operator database according to the identity information of the user to which the terminal belongs, and acquiring a network identifier of the terminal corresponding to the identity information of the user to which the terminal belongs; sending a query request to the terminal in a mobile switching network mode according to the network identifier of the terminal; obtaining an inquiry response fed back by a terminal through a mobile switching network, wherein the inquiry response comprises a first sequencing result, a first hash value and a second hash value, the first sequencing result is a result obtained by sequencing the first hash value and the second hash value according to a preset time sequence by the terminal, the first hash value is a value obtained by carrying out hash operation on a first code by the terminal, and the first code is a value obtained by coding information of a first vehicle by the terminal according to a preset mode; the second hash value is obtained by carrying out hash operation on a second code by the terminal, and the second code is obtained by coding the information of the second vehicle by the terminal according to a preset mode; and generating and sending a first broadcast message to the block chain network according to the first sequencing result, the first hash value and the second hash value, so that the license plate number of the first vehicle and the license plate number of the second vehicle are updated according to the first sequencing result and the second sequencing result calculated by the vehicle management node.

In some implementations, before the step of acquiring the third broadcast message sent by the vehicle management node from the blockchain network, the method further includes: and acquiring a second broadcast message sent by the vehicle management station node from the block chain network, wherein the second broadcast message comprises the identity information of the user to which the terminal belongs and the block chain information of the terminal.

In order to achieve the above object, a third aspect of the present application provides a vehicle authority node server, including: the system comprises a first obtaining module, a second obtaining module and a third obtaining module, wherein the first obtaining module is used for obtaining a first broadcast message sent by an operator node from a block chain network, the first broadcast message comprises a first sequencing result, a first hash value and a second hash value, the first sequencing result is a result obtained by sequencing the first hash value and the second hash value by a terminal inquired by the operator node, the first hash value is a value obtained by carrying out hash operation on a first code by the terminal, and the first code is a value obtained by coding information of a first vehicle by the terminal according to a preset mode; the second hash value is obtained by carrying out hash operation on a second code by the terminal, and the second code is obtained by coding the information of the second vehicle by the terminal according to a preset mode; the encoding module is used for acquiring pre-stored first storage information and second storage information, respectively encoding the first storage information to acquire a third code and encoding the second storage information to acquire a fourth code according to a preset mode; the Hash operation module is used for respectively carrying out Hash operation on the third code and the fourth code to obtain a third Hash value and a fourth Hash value; the sorting module is used for sorting the third hash value and the fourth hash value according to a preset time sequence to obtain a second sorting result; and the updating module is used for updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result.

According to the information updating method and the server based on the block chain, a first broadcast message sent by an operator node is obtained, a first Hash value in the first broadcast message is a value obtained by carrying out Hash operation on a first code by a terminal, and the first code is a value obtained by coding information of a first vehicle by the terminal according to a preset mode; the second hash value is obtained by the terminal performing hash operation on a second code, and the second code is obtained by the terminal encoding the information of the second vehicle according to a preset mode, so that the information sent by the terminal is prevented from being leaked, and the safety of the information is ensured; meanwhile, according to a preset mode, the first storage information is coded to obtain a third code, the second storage information is coded to obtain a fourth code, the first storage information and the second storage information are prevented from being leaked, and privacy of user information is further guaranteed. And updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result, so that the updating accuracy of the license plate numbers is ensured, and the user experience is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure and not to limit the disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:

fig. 1 illustrates a flowchart of an information updating method based on a blockchain in an embodiment of the present application.

Fig. 2 is a flowchart illustrating an information updating method based on a blockchain in another embodiment of the present application.

Fig. 3 is a flowchart illustrating an information updating method based on a blockchain in yet another embodiment of the present application.

Fig. 4 shows a block diagram of the components of the node server of the vehicle management station in the embodiment of the present application.

Fig. 5 shows a block diagram of a block chain-based information update system in an embodiment of the present application.

Fig. 6 shows a flowchart of an operating method of the information updating system based on the blockchain in the embodiment of the present application.

In the drawings:

401: the first obtaining module 402: coding module

403: the hash operation module 404: sorting module

405: the update module 501: terminal device

502: the vehicle management station node server 503: node server of vehicle inspection factory

504: operator node server

Detailed Description

The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present application, are given by way of illustration and explanation only, and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a flowchart illustrating an information updating method based on a blockchain in an embodiment of the present application, where the method is applicable to a node server of a vehicle management center. As shown in fig. 1, includes:

The first broadcast message comprises a first sequencing result, a first hash value and a second hash value, the first sequencing result is a result obtained by sequencing the first hash value and the second hash value by a terminal inquired by an operator node, the first hash value is a value obtained by carrying out hash operation on a first code by the terminal, and the first code is a value obtained by coding information of a first vehicle by the terminal according to a preset mode; the second hash value is obtained by the terminal performing hash operation on a second code, and the second code is obtained by the terminal encoding the information of the second vehicle according to a preset mode.

In some implementations, the information of the first vehicle includes hardware information of the first vehicle and a check-in time of the first vehicle, and the information of the second vehicle includes hardware information of the second vehicle and a check-in time of the second vehicle.

The hardware information may be a device Number of the Vehicle engine, or a Vehicle Identification Number (VIN) of the Vehicle. The hardware information is an identifier for distinguishing different vehicles, and the hardware information of each vehicle is unique. The hardware information is only an example, and may be specifically set according to specific situations, and other hardware information not described is also within the protection scope of the present application, and is not described herein again.

And step 120, acquiring first storage information and second storage information which are stored in advance, and coding the first storage information to acquire a third code and coding the second storage information to acquire a fourth code according to a preset mode.

And 140, sorting the third hash value and the fourth hash value according to a preset time sequence to obtain a second sorting result.

The preset time sequence is a sequence generated according to annual check time of the vehicle or a sequence generated according to purchase time of the vehicle. The preset time sequence is only illustrated by way of example, and may be specifically set according to specific situations, and other non-illustrated preset time sequences are also within the protection scope of the present application and are not described herein again.

And 150, updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result.

It should be noted that, the updating may be to exchange the license plate number of the first vehicle with the license plate number of the second vehicle, so that the user can manage the named vehicles conveniently, and convenience of the user is improved.

It should be noted that only when the above conditions are simultaneously satisfied, it can be determined that the license plate numbers of two vehicles can be updated according to the license plate interchange identifier, so that the vehicle numbers are prevented from being updated to wrong vehicles, and the safety of license plate number updating is ensured. Moreover, by comparing the hash values, the privacy information of the vehicle is prevented from being revealed, and the user experience is improved.

In some implementations, updating the license plate number of the first vehicle and the license plate number of the second vehicle based on the license plate interchange identifier includes: replacing the license plate number of the second vehicle with the license plate number of the first vehicle according to the license plate interchange identification; meanwhile, replacing the license plate number of the first vehicle by the license plate number of the second vehicle; and keeping the hardware information of the first vehicle, the vehicle inspection time of the first vehicle, the hardware information of the second vehicle and the vehicle inspection time of the second vehicle unchanged.

The license plate numbers of the two vehicles are interchanged to meet the requirements of the user to which the terminal belongs. And when the license plate numbers are exchanged, the hardware information of the first vehicle, the vehicle inspection time of the first vehicle, the hardware information of the second vehicle and the vehicle inspection time of the second vehicle are kept unchanged, so that the hardware information and the vehicle inspection time of the vehicles are not tampered, and the safety of the vehicle information is ensured.

In this embodiment, a first broadcast message sent by an operator node is acquired, where a first hash value in the first broadcast message is a value obtained by a terminal performing hash operation on a first code, and the first code is a value obtained by the terminal encoding information of a first vehicle according to a preset mode; the second hash value is obtained by the terminal performing hash operation on a second code, and the second code is obtained by the terminal encoding the information of the second vehicle according to a preset mode, so that the information sent by the terminal is prevented from being leaked, and the safety of the information is ensured; meanwhile, according to a preset mode, the first storage information is coded to obtain a third code, the second storage information is coded to obtain a fourth code, the first storage information and the second storage information are prevented from being leaked, and privacy of user information is further guaranteed. And updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result, so that the updating accuracy of the license plate numbers is ensured, and the user experience is improved.

The mode under the block chain can be a wireless communication mode, a point-to-point communication mode, a short-distance communication mode and other different non-block chain communication modes. The above methods for block chain linking are only examples, and may be specifically set according to actual situations, and other methods for block chain linking not described are also within the scope of the present application, and are not described herein again.

The block chain information is distributed to the terminal according to the identity information of the user to which the terminal belongs, so that the block chain information of the terminal can correspond to the identity information of the user to which the terminal belongs, and the identity information of the terminal is guaranteed to be real and effective.

The inquiry request identifier is used for indicating the operator node to send an inquiry request to the terminal so as to obtain the information of the first vehicle and the information of the second vehicle fed back by the terminal. Specifically, the terminal can encode or perform hash operation on the information of the first vehicle and the information of the second vehicle, process the information, and feed back the hash value obtained through calculation to the operator node, so as to ensure that the information of the terminal is not leaked and improve the safety of user information.

Fig. 2 is a flowchart illustrating an information updating method based on a blockchain in another embodiment of the present application. As shown in fig. 2, the following steps are included.

Step 220, obtaining pre-stored first storage information and second storage information, and coding the first storage information to obtain a third code and coding the second storage information to obtain a fourth code according to a preset mode.

And step 230, performing hash operation on the third code and the fourth code respectively to obtain a third hash value and a fourth hash value.

And 240, sorting the third hash value and the fourth hash value according to a preset time sequence to obtain a second sorting result.

And step 250, updating the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sequencing result and the first sequencing result.

The fourth broadcast message comprises a block chain identifier of the terminal, identity information of a user to which the terminal belongs, a first hash value, a second hash value, an updated license plate number of the first vehicle and an updated license plate number of the second vehicle.

Specifically, after the vehicle inspection factory node obtains the fourth broadcast message, the fourth broadcast message is analyzed, so that the block chain identifier of the terminal, the identity information of the user to which the terminal belongs, the first hash value, the second hash value, the updated license plate number of the first vehicle and the updated license plate number of the second vehicle can be obtained. And then, the vehicle inspection factory node inquires a database stored in the vehicle inspection factory node according to the block chain identifier of the terminal, and if the information is determined to be correct, the vehicle record information of the vehicle inspection factory node is updated by using the updated information.

In this embodiment, the fourth broadcast message is sent to the blockchain network, so that the vehicle inspection factory node can obtain the updated information, update the locally stored vehicle record information, facilitate subsequent management and query on the vehicle information, and improve the processing speed of the vehicle information.

Fig. 3 is a flowchart illustrating an information updating method based on a blockchain in an embodiment of the present application. The method can be applied to an operator node server. As shown in fig. 3, the following steps are included.

The third broadcast message comprises identity information of a user to which the terminal belongs and a query request identifier, wherein the query request identifier is used for indicating the node to send a query request to the terminal so as to obtain information of the first vehicle and information of the second vehicle fed back by the terminal.

Step 330, sending a query request to the terminal through a mobile switching network according to the network identifier of the terminal.

The inquiry response comprises a first sequencing result, a first hash value and a second hash value, wherein the first sequencing result is obtained by sequencing the first hash value and the second hash value according to a preset time sequence by the terminal, the first hash value is obtained by carrying out hash operation on a first code by the terminal, and the first code is obtained by coding the information of the first vehicle by the terminal according to a preset mode; the second hash value is obtained by the terminal performing hash operation on a second code, and the second code is obtained by the terminal encoding the information of the second vehicle according to a preset mode.

And 350, generating and sending a first broadcast message to the blockchain network according to the first sequencing result, the first hash value and the second hash value.

Specifically, the license plate number of the first vehicle and the license plate number of the second vehicle are updated by the vehicle management node according to the first sequencing result and the second sequencing result calculated by the vehicle management node. For example, the license plate number of the first vehicle and the license plate number of the second vehicle are exchanged to meet the requirements of users, and the users can conveniently manage the vehicle information.

In the embodiment, the network identifier of the terminal corresponding to the identity information of the user to which the terminal belongs is obtained by searching the operator database according to the identity information of the user to which the terminal belongs; and sending a query request to the terminal in a mobile switching network mode according to the network identifier of the terminal, and generating and sending a first broadcast message to the block chain network after obtaining a first sequencing result, a first hash value and a second hash value fed back by the terminal. Under the condition that the user changes the network identifier, the first sequencing result, the first hash value and the second hash value fed back by the terminal can still be obtained, and the condition that the terminal information cannot be obtained is avoided. After the vehicle management node obtains the first sequencing result, the first hash value and the second hash value, the license plate number of the first vehicle and the license plate number of the second vehicle are updated according to the first sequencing result and the second sequencing result calculated by the vehicle management node, so that the updating efficiency of the license plate numbers of the vehicles is improved, and the user experience degree is high.

The second broadcast message sent by the vehicle management station node is acquired from the block chain network, so that the identity information of the user to which the terminal belongs and the block chain information of the terminal are acquired, the block chain information of the terminal and the identity information of the user to which the terminal belongs can be ensured to be corresponding, the terminal is ensured to be real and reliable, the disorder of the terminal information is avoided, the vehicle exchange efficiency is improved, and the user experience degree is improved.

Fig. 4 is a schematic structural diagram of a node server of a vehicle management station according to an embodiment of the present application, and specific implementation of the server may refer to related description of the first embodiment, and repeated details are not repeated. It should be noted that the specific implementation of the server in this embodiment is not limited to the above embodiment, and other undescribed embodiments are also within the scope of the server.

As shown in fig. 4, the node server of the vehicle management station specifically includes: the car management station node server comprises: a first obtaining module 401, configured to obtain a first broadcast message sent by an operator node from a blockchain network, where the first broadcast message includes a first ordering result, a first hash value, and a second hash value, the first ordering result is a result obtained by the operator node ordering the first hash value and the second hash value, the first hash value is a value obtained by a terminal performing hash operation on a first code, and the first code is a value obtained by the terminal encoding information of a first vehicle according to a preset mode; the second hash value is obtained by carrying out hash operation on a second code by the terminal, and the second code is obtained by coding the information of the second vehicle by the terminal according to a preset mode; the encoding module 402 is configured to acquire first storage information and second storage information which are stored in advance, and encode the first storage information to obtain a third code and encode the second storage information to obtain a fourth code according to a preset mode; a hash operation module 403, configured to perform a hash operation on the third code and the fourth code, respectively, to obtain a third hash value and a fourth hash value; the sorting module 404 is configured to sort the third hash value and the fourth hash value according to a preset time sequence to obtain a second sorting result; and an updating module 405, configured to update the license plate number of the first vehicle and the license plate number of the second vehicle according to the second sorting result and the first sorting result.

In the embodiment, a first broadcast message sent by an operator node is acquired through a first acquisition module, a first hash value in the first broadcast message is a value obtained by a terminal performing hash operation on a first code, and the first code is a value obtained by the terminal encoding information of a first vehicle according to a preset mode; the second hash value is obtained by the terminal performing hash operation on a second code, and the second code is obtained by the terminal encoding the information of the second vehicle according to a preset mode, so that the information sent by the terminal is prevented from being leaked, and the safety of the information is ensured; meanwhile, the coding module is used for coding the first storage information respectively to obtain a third code and coding the second storage information to obtain a fourth code according to a preset mode, so that the first storage information and the second storage information are prevented from being leaked, and the privacy of user information is further guaranteed. And updating the license plate number of the first vehicle and the license plate number of the second vehicle by using the updating module according to the second sequencing result and the first sequencing result, so that the updating accuracy of the license plate numbers is ensured, and the user experience is improved.

It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, a unit that is not so closely related to solving the technical problem proposed by the present application is not introduced in the present embodiment, but it does not indicate that no other unit exists in the present embodiment.

Fig. 5 shows a block diagram of a block chain-based information updating system according to an embodiment of the present application. As shown in fig. 5, includes: a terminal 501, a vehicle management node server 502, a vehicle inspection station node server 503 and an operator node server 504.

The vehicle management station node server 502 is an originator node of the block chain, and issues an founding block to the block chain in a manner of sending a broadcast message signed by a private key of the vehicle management station node server 502. The broadcast message specifically includes: the mobile phone number of the terminal 501, the block chain identifier and the public key of the node server 502 of the vehicle management station, and the block chain identifier and the public key of the node server 503 of the vehicle inspection factory.

Fig. 6 is a flowchart illustrating a method for operating an information updating system based on a blockchain in an embodiment of the present application. As shown in fig. 6, the method specifically includes the following steps.

The mode under the blockchain may include various non-blockchain communication modes such as a wireless communication mode, a peer-to-peer communication mode, and a short-range communication mode. The above methods for block chain linking are only examples, and may be specifically set according to actual situations, and other methods for block chain linking not described are also within the scope of the present application, and are not described herein again.

It should be noted that the first vehicle M and the second vehicle N are both vehicles under the user name to which the terminal 501 belongs. The vehicle information exchange request may include: the block chain identifier of the terminal 501, the license plate interchange identifier, the identity information of the user to which the terminal 501 belongs encrypted by using the public key of the vehicle management node server 502 according to a pre-agreed algorithm, the license plate number of the first vehicle M (for example, kyoto ABC666) encrypted by using the public key of the vehicle management node server 502 according to a pre-agreed algorithm, the annual inspection time validity period of the first vehicle M (for example, 31/5/2020/year), the license plate number of the second vehicle N (for example, DEF 123/kyoto) encrypted by using the public key of the vehicle management node server 502 according to a pre-agreed algorithm, and the annual inspection time validity period of the second vehicle N (for example, 28/2/month 2021/year).

Wherein the third broadcast message comprises: identity information and query request identification of the user to which the terminal 501 belongs. Moreover, the identity information and the query request identifier of the user to which the terminal 501 belongs need to be encrypted by using the public key of the operator node server 504 according to a predetermined algorithm, so as to ensure the security of the identity information and the query request identifier. The query request identifier is used to indicate that the operator node server 504 needs to send a query request to the terminal to obtain the information of the first vehicle M and the information of the second vehicle N fed back by the terminal.

It should be noted that, if the user to which the terminal 501 belongs applies for a mobile phone number in real name from multiple operators (for example, 138xxxx2345 when the user to which the terminal 501 belongs applies for a first mobile phone number in real name from a first operator, and 130xxxx5678 when the user to which the terminal 501 belongs applies for a second mobile phone number in real name from a second operator), the operator node server 504 includes a first operator node server and a second operator node server, and each operator node server needs to send an inquiry request to a corresponding mobile phone number.

For example, the first operator node server needs to send a query request to the mobile phone number 138xxxx2345, and meanwhile, the second operator node server needs to send a query request to the mobile phone number 130xxxx 5678. The operator node server 504 comprehensively evaluates the obtained information of the first vehicle M and the information of the second vehicle N through the information fed back by the plurality of mobile phone numbers.

Wherein the information of the first vehicle M includes: the transmitter number of the first vehicle M and the vehicle annual inspection time corresponding to the first vehicle M, and the transmitter number of the second vehicle N and the vehicle annual inspection time corresponding to the second vehicle N. The preset time sequence may be the sequence of annual inspection time of the vehicle, or the sequence of purchasing age of the vehicle, the preset time sequence is only an example, and may be specifically set according to specific situations in specific implementation, and other unexplained preset time sequences are also within the protection scope of the present application, and are not described herein again.

Wherein the first stored information is information of a first vehicle M stored in advance, and the second stored information is information of a second vehicle N stored in advance;

it should be noted that after the license plate numbers of the first vehicle M and the second vehicle N are interchanged, the specific information of the two vehicles is as follows: the license plate number of the first vehicle M is jing DEF123, the engine number of the first vehicle M remains unchanged, the annual inspection time validity period of the second vehicle M is 2020, 5 and 31, the license plate number of the second vehicle N is jing ABC666, the engine number of the second vehicle N remains unchanged, and the annual inspection time validity period of the second vehicle N is 2021, 2 and 28.

The fourth broadcast message comprises a block chain identifier of the terminal, identity information of a user to which the terminal belongs, a first hash value, a second hash value, an updated license plate number of the first vehicle and an updated license plate number of the second vehicle. For example, the block chain identifier of the terminal 501, the hash value of the id card information and the numerical information in the id card information of the user to which the terminal 501 belongs, the hash value of the name and the literal information of the name of the user to which the terminal 501 belongs, the hash value corresponding to the license plate number (jing DEF123) of the first vehicle M, the engine number (for example, 123456789) of the first vehicle M, the hash value corresponding to the license plate number (jing ABC666) of the second vehicle N, and the engine number (for example, 111222333) of the second vehicle N may be specifically included.

It should be noted that, the information in the fourth broadcast message needs to be encrypted (for example, a hash value of each information is calculated) to ensure that the information privacy of the user and the information privacy of the vehicle are not leaked.

In this embodiment, in a manner under a block chain, the terminal records the identity information and the mobile phone number of the user to which the terminal belongs to the node server of the vehicle management station, so that the node server of the vehicle management station allocates a block chain identifier, a public key and a private key to the terminal, and each node in the block chain can verify the authenticity of the identity information of the user to which the terminal belongs according to the block chain identifier of the terminal. The inquiry message is sent to the terminal through the operator node server so as to obtain the inquiry response fed back by the terminal, and even if the mobile phone number is changed by the terminal, the inquiry response fed back by the terminal can still be obtained through the operator node server, so that the convenience of information acquisition is improved. After the node server of the vehicle management station obtains the first sorting result, the first hash value and the second hash value fed back by the terminal, the engine numbers and the vehicle inspection time of the first vehicle and the second vehicle are respectively coded in a preset mode, the coded hash values are calculated, and then the two hash values are sorted according to a preset time sequence to obtain a second sorting result. By comparing the first sequencing result with the second sequencing result, the node server of the vehicle management station can verify whether the engine numbers and the vehicle inspection time of the two vehicles are correct, so that the engine numbers and the vehicle inspection time are prevented from being leaked, and the safety of vehicle information is improved.

It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present application, and that the present application is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the application, and these changes and modifications are to be considered as the scope of the application.