CN115345751A

CN115345751A - Automobile delay protection method based on alliance block chain

Info

Publication number: CN115345751A
Application number: CN202210868086.4A
Authority: CN
Inventors: 丁勇; 王习琴; 梁海
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-11-15

Abstract

The invention relates to the technical field of automobile delay insurance, in particular to an automobile delay insurance method based on an alliance block chain, which comprises the steps that a supplier sends a delay insurance contract to a dealer, and automobile data corresponding to the delay insurance contract is sent to the alliance block chain; the dealer sells contract information of the insurance-delay contract to the consumer and sends the contract information to the alliance block chain; the supplier acquires contract information through the block chain of the alliance and purchases insurance from the insurance company; when the automobile fails, the consumer registers claims with the dealer based on insurance; the detection mechanism detects the automobile based on the registered information; the dealer calls original factory parts to maintain the automobile based on the detection result, maintenance data are obtained, and the maintenance data are uploaded to the alliance block chain; and the service management company acquires the encrypted maintenance data from the alliance block chain, decrypts the encrypted maintenance data, analyzes the fault data of the automobile, obtains an analysis report and uploads the analysis report to the alliance block chain, so that the important data of automobile delay protection are disclosed.

Description

Automobile delay protection method based on alliance block chain

Technical Field

The invention relates to the technical field of automobile delay protection, in particular to an automobile delay protection method based on an alliance block chain.

Background

The driving style of the automobile is different between different parts and different drivers after the automobile is purchased, so that the maintenance cost in the early period is increased continuously. Maintenance costs are gradually reduced with constant running-in. However, as the age of the automobile increases and the distance traveled increases, the maintenance cost tends to increase. The guarantee period of a manufacturer can only be maintained for the first few years, and after the guarantee period is over, a consumer maintains the automobile and can bear a large amount of maintenance cost. Therefore, the method for signing the automobile insurance-extending contract when the consumer purchases the automobile is an effective guarantee mode for the consumer.

The problems of deception of customers, dishonest and the like easily occur in the automobile maintenance. In the process of repairing a car by a customer, some repair shops change original parts of the car into products with lower prices than the original factories in order to obtain the maximum profit. However, since the customer's maintenance list does not show specific information, it is rarely verified that the customer cannot distinguish whether the original factory component is used.

While the national economic level is continuously improved, automobile insurance occupies a greater proportion in the business of the property insurance industry. However, as automobile insurance continues to develop, the phenomenon of cheating insurance is also endless, and has great adverse effect on maintaining the order of the insurance market, and is harmful and not beneficial to a plurality of insurers.

In the automobile insurance method, a central organization, namely a trusted organization, is needed to prove or coordinate among a plurality of participants, and in this case, some important data with higher value and higher density are monopolized by the organizations. The data cannot circulate in the society, so that the data cannot be verified, the authenticity of the data and the real-time acquireability of the data are greatly influenced, and the authenticity of automobile delay is reduced.

Disclosure of Invention

The invention aims to provide an automobile delay protection method based on an alliance block chain, and aims to solve the problems that important data of the existing automobile delay protection method are monopolized, and the authenticity of automobile delay protection is reduced.

In order to achieve the purpose, the invention provides an automobile delay protection method based on a block chain of a alliance, which comprises the following steps:

establishing an alliance block chain by taking a detection mechanism, an insurance company, a distributor, a consumer, a supplier and a service management company as nodes;

the supplier sends a delay insurance contract to the dealer, and sends automobile data corresponding to the delay insurance contract to the alliance block chain;

the dealer sells the insurance-extending contract to the consumer, the contract information is obtained after successful selling, and the contract information is sent to the alliance block chain;

the supplier acquires the contract information through the alliance block chain and purchases insurance from the insurance company based on the contract information;

when the automobile breaks down, the consumer registers claims with the dealer based on the insurance to obtain registration information;

the detection mechanism detects the automobile based on the registration information to obtain a detection result;

the dealer calls original factory parts to maintain the automobile based on the detection result to obtain maintenance data, and the maintenance data are encrypted and uploaded to the alliance block chain;

and the service management company acquires and decrypts the encrypted maintenance data from the alliance block chain to obtain a data plaintext, analyzes the fault data of the automobile based on the data plaintext to obtain an analysis report, encrypts the analysis report and uploads the encrypted analysis report to the alliance block chain.

The automobile data comprises a production number of an automobile and a production number of a part;

the registration information includes the contract information, a number corresponding to the contract information, automobile claim data, and follow-up data.

And the data uploaded by any one node of the dealer, the consumer, the supplier and the service management company is uploaded to the alliance block chain and encrypted by adopting an attribute encryption technology based on a ciphertext strategy to obtain an encrypted ciphertext, and the encrypted ciphertext is decrypted by adopting the attribute encryption technology based on the ciphertext strategy.

The data is uploaded to the alliance block chain and encrypted by adopting an attribute encryption technology based on a ciphertext strategy, and the specific mode of obtaining an encrypted ciphertext is as follows:

receiving security parameters of a system through an initial setting algorithm, and outputting public parameters and a master key;

and putting the data uploaded to the block chain of the alliance by the public parameter and the access structure into an encryption algorithm, and inputting an encrypted ciphertext.

The specific way for decrypting the encrypted ciphertext by the attribute encryption technology based on the ciphertext policy is as follows:

inputting the attribute set of the master key and the data resource visitor into the key extraction algorithm, and outputting a decryption key;

and inputting the public parameter, the encrypted ciphertext and the decryption key into a decryption algorithm to obtain decrypted data.

The invention relates to an automobile delay protection method based on an alliance block chain, which comprises the steps of establishing the alliance block chain by taking a detection mechanism, an insurance company, a distributor, a consumer, a supplier and a service management company as nodes; the supplier sends a delay contract to the dealer and sends automobile data corresponding to the delay contract to the alliance block chain; the dealer sells the insurance-extending contract to the consumer, the contract information is obtained after successful selling, and the contract information is sent to the alliance block chain; the supplier acquires the contract information through the alliance blockchain and purchases insurance from the insurance company based on the contract information; when the automobile fails, the consumer makes a claim registration to the dealer based on the insurance to obtain registration information; the detection mechanism detects the automobile based on the registration information to obtain a detection result; the dealer calls original factory parts to maintain the automobile based on the detection result to obtain maintenance data, and the maintenance data are encrypted and uploaded to the alliance block chain; the service management company obtains the encrypted maintenance data from the alliance block chain and decrypts the maintenance data to obtain a data plaintext, analyzes the fault data of the automobile based on the data plaintext to obtain an analysis report, encrypts the analysis report and uploads the encrypted analysis report to the alliance block chain, so that the important data of automobile delay insurance are disclosed, and the problems that the important data of the existing automobile delay insurance method are monopolized and the authenticity of automobile delay insurance is reduced are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart of an automobile delay protection method based on a federation blockchain provided by the present invention.

Fig. 2 is a flowchart of the process of uploading the data to the federation block chain, and encrypting the data by using an attribute encryption technology based on a ciphertext policy to obtain an encrypted ciphertext.

Fig. 3 is a flowchart of the ciphertext-based attribute encryption technique decrypting the encrypted ciphertext.

FIG. 4 is a data flow diagram of a federation blockchain node.

Fig. 5 is a schematic structural diagram of an automobile delay protection method based on a federation blockchain provided by the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1 to 5, the present invention provides a car delay method based on alliance block chain, comprising the following steps:

s1, establishing an alliance block chain by taking a detection mechanism, an insurance company, a dealer, a consumer, a provider and a service management company as nodes;

specifically, the federation blockchain refers to a blockchain that is subject to a preselected node in a consensus process. The detection agency, the insurance company, the dealer, the consumer, the provider, and the service management company as nodes may collectively decide the generation of each block.

Only dealers, service management companies, and consumers can view the car data published on the alliance blockchain by the vendor of the warranty product; only the provider, service management company, and consumer can view the data published by the franchisee on the federation blockchain. The dealer can call the parts of the automobile original factory from the supplier of the delay protection product for maintenance after checking the automobile fault detection data issued by the detection mechanism on the block chain of the alliance and the data such as the corresponding production number of the automobile, the number of the parts and the like. In order to ensure that the access security of the data which is not completely disclosed to all nodes by the automobile data and the contract information is ensured, before a user releases the data on a block chain of a alliance, the data needs to be encrypted, and the privacy of the data is protected by applying an attribute encryption technology based on a ciphertext strategy.

S2, the supplier sends a delay contract to the dealer, and sends automobile data corresponding to the delay contract to the alliance block chain;

specifically, the automobile data includes a production number of the automobile and a production number of the part. The supplier detects and registers the production number of each vehicle and the production number of the part, and simultaneously releases the data on the block chain of the alliance

S3, the dealer sells the guarantee-delay contract to the consumer, the contract information is obtained after successful sale, and the contract information is sent to the alliance block chain;

specifically, the dealer sells the delay insurance product contract designed by the supplier of the delay insurance product at the time of sale, and at the same time, makes a claim registration for the failure of the automobile under normal use conditions, and can be responsible for the maintenance service of the failed automobile. The dealer will distribute the data on the federation blockchain according to the signed contract number, contract information, automobile claim data, follow-up data, and the like.

When the consumer purchases the automobile, the consumer selects to voluntarily sign an automobile insurance delay contract, and if the automobile fails under the condition of normal use, the consumer goes to a dealership to perform fault claim registration.

S4, the supplier obtains the contract information through the block chain of the alliance and purchases insurance from the insurance company based on the contract information;

specifically, the supplier is a supplier (whole vehicle manufacturer system) of the delay insurance product mainly made by a whole vehicle manufacturer, and the supplier of the delay insurance product designs and provides a contract of the delay insurance product, and simultaneously detects and registers the production number and the part number of the produced vehicle.

The supplier of the insurance company for the extension product purchases insurance from the insurance company according to the content of the extension contract.

S5, when the automobile fails, the consumer makes a claim registration to the dealer based on the insurance to obtain registration information;

specifically, the registration information includes the contract information, a number corresponding to the contract information, automobile claim data, and subsequent data.

S6, the detection mechanism detects the automobile based on the registration information to obtain a detection result;

specifically, the detection mechanism detects the fault problem of the automobile; after the detection mechanism detects the fault of the automobile, the detection data result is issued on the block chain of the alliance, and all other nodes can check the fault detection data of the automobile.

S7, the dealer calls original factory parts to maintain the automobile based on the detection result to obtain maintenance data, and the maintenance data are encrypted and uploaded to the alliance block chain;

s8, the service management company acquires the encrypted maintenance data from the alliance block chain and decrypts the maintenance data to obtain a data plaintext, analyzes the fault data of the automobile based on the data plaintext to obtain an analysis report, encrypts the analysis report and uploads the encrypted analysis report to the alliance block chain.

Specifically, the service management company manages the delay insurance contract data through the authorization of the delay insurance product supplier, and simultaneously performs data accumulation analysis on the related fault data after the consumer sends the fault car to the dealer for repair, and returns an analysis report to the delay insurance product supplier to control the claim risk.

Specifically, data uploaded by any one node of the dealer, the consumer, the supplier and the service management company is uploaded to the alliance block chain, encrypted by adopting an attribute encryption technology based on a ciphertext strategy to obtain an encrypted ciphertext, and the encrypted ciphertext is decrypted by adopting the attribute encryption technology based on the ciphertext strategy.

The data is uploaded to the alliance block chain and encrypted by adopting an attribute encryption technology based on a ciphertext strategy to obtain an encrypted ciphertext, and the specific mode is as follows:

s101, receiving security parameters of a system through an initial setting algorithm, and outputting public parameters and a master key;

specifically, the initial setting algorithm Setup ()

Setup(P)→(PK,MK)

Wherein the initialization algorithm is a randomization algorithm, and the executing party is a trusted key distribution center in general, receives the security parameter P of the system through Setup () algorithm, and then outputs the system public parameter PK and the master key MK. The public parameter PK of the system is used as a parameter required for encryption, and the master key MK is used as a parameter required for key extraction.

S102, the public parameters and the data uploaded to the block chain of the alliance by the access structure are put into an encryption algorithm, and an encrypted ciphertext is output.

Specifically, the encryption algorithm Encrypt ()

Encrypt(PK,M,T)→CT

The encryption algorithm is a randomization algorithm, and the executing party is a data owner. PK is the system common parameter output in the initial setup algorithm, T represents the access structure and M represents the plaintext. And putting the PK, M and T parameters into an encryption algorithm Encrypt (), and outputting encrypted data CT. In the method, a plaintext M is a data resource which a user wants to upload to a block chain, an access structure T is a set formed by subsets of a non-empty participant set, T represents an attribute judgment condition, A represents any subset of participants, and if A represents any subset of participants

Then it is called the authorization set; if it is used

Called an unauthorized set, only the attributes of authorized participants can access the resource.

The specific way for decrypting the encrypted ciphertext by the attribute encryption technology based on the ciphertext strategy is as follows:

s201, inputting the attribute set of the master key and the data resource visitor into the key extraction algorithm, and outputting a decryption key;

in particular, key extraction KeyGen ()

KeyGen(MK,S)→KS

The key extraction algorithm is a randomization algorithm, and an executing party in a normal case is also a key distribution center which can be trusted. The two parameters required to be input in the key extraction algorithm comprise MK and S, wherein MK is a master key output in the initial setting algorithm, S represents an attribute set of a data resource visitor, and a decryption key KS corresponding to S is output after execution is completed.

S202, the public parameter, the encrypted ciphertext and the decryption key are input into a decryption algorithm to obtain decrypted data.

In particular, the decryption algorithm Decrypt ()

Decrypt(PK,CT,KS)→M

The decryption algorithm is a deterministic algorithm, and the executing party is a data requester. PK in the input parameters is an output system public parameter in the initial setting algorithm, CT represents an encrypted ciphertext corresponding to the access structure A, and KS represents a decryption key corresponding to the attribute set S. If the attribute set S satisfies the access structure T, decrypt () outputs a message M.

And the supplier of the delay product designs a delay contract according to the content related to the automobile delay, and the delay contract is provided to the dealer after the design is finished. Meanwhile, the produced automobile production number and the part production number data need to be sorted and linked up, and the information can be accessed by dealers and consumers. Before information is linked, strategies of a distributor and a consumer are embedded into a secret key by adopting an attribute encryption technology based on a ciphertext strategy, a data owner of a guarantee product supplier needs to Encrypt data resources to be uploaded to a block chain by using an encryption algorithm Encrypt () to output a ciphertext CT, and a secret key extraction algorithm KeyGen () is adopted to output a decryption key KS corresponding to an attribute S of the distributor and the consumer. The data owner sends the ciphertext to the distributor and the consumer respectively. When the distributor and the consumer Decrypt, the decryption key KS, the ciphertext CT and the public parameter PK are input to a decryption algorithm Decrypt () to Decrypt the ciphertext CT to obtain data resources.

The dealer markets the delay product to the consumer on the basis that the supplier of the delay product provides the delay contract, and under the condition that the consumer signs the delay contract, the contract number signed by the consumer, contract information (such as customer information, the production number of the automobile, the production number of parts, the automobile delay scheme purchased by the consumer and the like), automobile claim data, subsequent data and the like are published on the alliance blockchain. The information of the delay contract can be accessed by nodes of a supplier, a service management company and a consumer of the delay product, and the attributes of the supplier, the service management company and the consumer of the delay product are embedded into the key by adopting an attribute encryption technology based on a ciphertext strategy before uplink. The data owner distributor needs to Encrypt the data resource to be uploaded to the block chain by using an encryption algorithm Encrypt () to output a ciphertext CT, and outputs a decryption key KS corresponding to the attribute S of the supplier, the service management company and the consumer of the extension protection product by adopting a key extraction algorithm KeyGen (). And the data owner distributor sends the ciphertext to a supplier, a service management company and a consumer of the delay insurance product respectively. When a supplier, a service management company and a consumer of the delay protection product carry out decryption, the decryption key KS, the ciphertext CT and the public parameter PK are input to a decryption algorithm Decrypt () to Decrypt the ciphertext CT to obtain data resources.

The method can protect the privacy of the client, only the node with the authority can check the part of the data which is not completely disclosed, and meanwhile, the data can be managed more conveniently after being published on the block chain of the alliance.

The dealer can directly look over the production serial number of this car and the production serial number of spare part on the chain when repairing consumer's trouble car, can directly apply for and transfer certain part to the supplier of delay guarantor product when needing to replace certain spare part of trouble car, avoids appearing "steal roof beam and trade the post" action in the maintenance process.

If the automobile fails under the normal use condition, a dealer can be found for carrying out claim registration, and information such as an automobile type, a license plate number, a telephone number, an owner name, fault description and the like is mainly registered. After the claims are registered, the fault automobile needs to be detected by a detection mechanism;

the detection mechanism detects the fault of the automobile and then issues fault data (such as fault positions, faults occurring under normal use conditions and the like) of the automobile after detection on the automobile on the alliance block chain, the information can be accessed by all nodes on the chain without being encrypted and issued, a dealer checks the data issued by the detection mechanism and then maintains the automobile, and parts of a supplier of delay products of the automobile purchased by a consumer need to be called for maintenance during maintenance.

The service management company manages the delay insurance contract data issued by the dealers after the authorization of the delay insurance product suppliers, and simultaneously performs data accumulation analysis on automobile fault data after a consumer sends a fault automobile to the dealers for repair, mainly analyzes the reasons of fault generation, related parts and the like, returns an analysis report to the delay insurance product suppliers and controls claim risks;

the supplier of the delay insurance products buys insurance from the insurance company according to the delay insurance contract;

fig. 5 is a schematic structural diagram of an automobile insurance extending method based on a federation block chain according to this embodiment, where the structure includes six nodes, namely, a detection agency 1, an insurance company 2, a dealer 3, a consumer 4, a provider 5, and a service management company 6.

In order to avoid two or more parties planning fraud of one or more parties, the detection mechanism is required to be linked up, the operation is mainly to detect faults of vehicles subject to claims registration of consumers, specific detection data of the faulty vehicles are published on the alliance block chain after detection is completed, nodes can view the data published by the detection mechanism, other nodes can view the detection data of the faulty vehicles, and fraud events are avoided by disclosing transparent data.

The dealer publishes information (such as customer information, production numbers of automobiles, production numbers of parts, automobile insurance schemes purchased by consumers and the like) of insurance-extending contracts on a block chain of the alliance, the information can be checked by nodes of three parts of suppliers, service management companies and consumers of insurance-extending products, before the information of the insurance-extending contracts is linked, an access policy is embedded into a ciphertext by adopting a ciphertext policy-based attribute encryption technology (CP-ABE), and attributes of the suppliers, the service management companies and the consumers of the insurance-extending products are embedded into a secret key. The data owner distributor needs to Encrypt the data resource to be uploaded to the block chain by using an encryption algorithm Encrypt () to output a ciphertext CT, and outputs a decryption key KS corresponding to the attribute S of the supplier, the service management company and the consumer of the extension protection product by adopting a key extraction algorithm KeyGen (). And the data owner distributor sends the ciphertext to a supplier, a service management company and a consumer of the delay insurance product respectively. When a supplier, a service management company and a consumer of the delay protection product carry out decryption, a decryption key KS, a ciphertext CT and a public parameter PK are input into a decryption algorithm Decrypt () to carry out decryption to obtain data resources. The method can protect the privacy of the client, only the node with the authority can check the part of the data which is not completely disclosed, and meanwhile, the data can be managed more conveniently after being published on the block chain of the alliance.

The supplier of the delay protection product publishes the production number of the automobile and the production number corresponding to the part on the chain, and the information can be accessed by the dealer and the consumer. Before the data information of the automobile is linked, attributes of a dealer and a consumer are embedded into a secret key by adopting an attribute encryption technology based on a ciphertext strategy, a data owner of a product insurance-extending supplier needs to Encrypt data resources to be uploaded to a block chain by using an encryption algorithm Encrypt () to output a ciphertext CT, and a secret key extraction algorithm KeyGen () is adopted to output a decryption secret key KS corresponding to the attribute S of the dealer and the consumer. The data owner sends the ciphertext to the distributor and the consumer respectively. When the distributor and the consumer Decrypt, the decryption key KS, the ciphertext CT and the public parameter PK are input into a decryption algorithm Decrypt () to Decrypt the ciphertext CT to obtain data resources. The dealer can directly look over the production number of the part that the production number of this car related when repairing the trouble car of consumer on the chain, can directly apply for from the supplier of delay guarantor product and transfer certain part when needing to replace certain part of trouble car, avoids appearing "stealing roof beam and changing columns" action in the maintenance process. The consumer also can know the production number of own car and the serial number of spare part, can verify the maintenance condition of trouble car, makes the consumer can be more reassurance. While the supplier of the time-delay insurance product needs to purchase insurance from the insurance company under the time-delay contract.

The service management company needs to perform data accumulation analysis on the same data, and the data of the automobile fault after the automobile fault is sent to the dealer for repair by the consumer, mainly analyze the cause of the fault, the related parts and the like, and return the analysis report to the supplier of the delay protection product to control the claim risk.

Has the advantages that:

the invention can realize the rapid whole-network broadcasting, matching, checking and identifying of events and information related to the affairs in a large range and in a short time based on the technology of the alliance block chain, and solves the management problem of large-capacity data. Secondly, the problem that parts are replaced in the automobile maintenance process can be solved, the supplier of the delay protection product publishes the production number of the automobile, the production number corresponding to the parts, the production number of the automobile called by the fault automobile of the consumer and the automobile number of the parts on a chain, the consumer and the dealer can see the data, when the automobile of the consumer goes wrong under the normal use condition and is detected by the detection mechanism, the dealer calls the parts of the supplier of the delay protection product according to the production number of the automobile on the chain and the production number of the parts of the automobile to maintain, the dealer can carry out chain linking on the data of the automobile in the maintenance process, the consumer can check the data, and the problem that the parts of the automobile are replaced is reduced. And finally, the problem of cheat insurance can be solved, the detection mechanism is used for detecting a fault automobile of a consumer, the detection mechanism publishes the data on the block chain after detecting the automobile, and all nodes can check the data, so that the data is guaranteed to be public and transparent, and the cheat insurance phenomenon is reduced.

While the invention has been described with reference to a preferred embodiment of a federation blockchain-based vehicle protection method, it will be understood by those skilled in the art that all or a portion of the process flow of the above embodiment may be implemented and still fall within the scope of the invention.

Claims

1. A car delay protection method based on a block chain of alliances is characterized by comprising the following steps:

the supplier sends a delay contract to the dealer and sends automobile data corresponding to the delay contract to the alliance block chain;

the supplier acquires the contract information through the alliance blockchain and purchases insurance from the insurance company based on the contract information;

when the automobile fails, the consumer makes a claim registration to the dealer based on the insurance to obtain registration information;

2. A federation blockchain-based automobile delay method as in claim 1,

the automobile data comprises the production number of the automobile and the production number of the part;

the registration information comprises the contract information, a number corresponding to the contract information, automobile claim data and follow-up data.

3. A federation blockchain-based automobile delay method as in claim 1,

and uploading data uploaded by any one node of the dealer, the consumer, the supplier and the service management company to the alliance block chain, encrypting the data by adopting an attribute encryption technology based on a ciphertext strategy to obtain an encrypted ciphertext, and decrypting the encrypted ciphertext by adopting the attribute encryption technology based on the ciphertext strategy.

4. A federation blockchain-based automobile delay method as in claim 3,

the data is uploaded to the alliance block chain and encrypted by adopting an attribute encryption technology based on a ciphertext strategy, and the specific mode of obtaining the encrypted ciphertext is as follows:

5. A federation blockchain-based automobile delay method as in claim 4,