CN109410056A - A kind of method that charging system for electric automobile realizes decentralization Secure Transaction - Google Patents
A kind of method that charging system for electric automobile realizes decentralization Secure Transaction Download PDFInfo
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- CN109410056A CN109410056A CN201811176692.XA CN201811176692A CN109410056A CN 109410056 A CN109410056 A CN 109410056A CN 201811176692 A CN201811176692 A CN 201811176692A CN 109410056 A CN109410056 A CN 109410056A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
- G06Q20/4014—Identity check for transactions
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
- G07F15/005—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity dispensed for the electrical charging of vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
The invention discloses a kind of methods that charging system for electric automobile realizes decentralization Secure Transaction, electric car and charging station in this method complete transaction in the intelligent contract established, when electric car issues charging transaction request, electric car announces public information, and the identity of automobile verification information in electric car is encrypted, safety verification is carried out by the secondary safety check module in the safety check of charging station and intelligent contract later, completes charge request transactional services.By carrying out safe verifying to the encrypted electric car of networking in intelligent contract; the method of commerce of decentralization, issue of anonymity charge request that realization electric car orderly charges; it protects the sensitive datas such as electric car location information not to be leaked, ensure that transaction can be carried out safely and efficiently.
Description
Technical field
The invention belongs to Secure Transaction fields, and in particular to a kind of charging system for electric automobile realization decentralization friendship safely
Easy method.
Background technique
Charging system for electric automobile is to integrate orderly scheduling, reasonably select and plan and complete transaction as the height of core
Integral system.During electric car realizes orderly charging, system is by administrative center, trusted third party, in conjunction with electronic
The data such as automobile own location information, remaining capacity and each charging station location and current state guidance electric car selection charging ground
Point realizes the centralized control to transaction of charging between electric car and charging station.Pass through electric car, charging station and third party tube
Information exchange between reason center completes the orderly charging of electric car.
Existing charging system for electric automobile is using in car-mounted terminal, data center, security management center and Charge Management
The combination of the heart realizes the communication between electric car and charge management center by wireless modes such as Wi-Fi, GPRS.Electronic vapour
Vehicle selects charging service by car-mounted terminal, issues charge request, sends charge request message, the charging to charge management center
It on the one hand include the identity code of user's electric car in request message, on the other hand the information of vehicles such as remaining capacity include
The real-time position information of user's electric car.Now there are two types of the upload modes to electric car sensitive data.One is without adding
Close, the plaintext transmission of charge request message is directly sent to charge management center；Another kind is by encryption, end to end
Ciphertext transmission.In process of exchange, if directlying adopt the mode uploaded in plain text, eavesdropping attack is may be implemented in attacker, obtains vehicle
Request charging when real-time status；If there are the realizations of certain probability to crack data by the way of ciphertext upload, number
It can be stolen according to remaining unchanged.Meanwhile charging vapour must be instructed via believable third party administrative center in electric car charging transaction
Vehicle and reasonable selection and programming dispatching in charging station matching process, on the one hand, if attacker passes through the attack patterns such as DDoS,
A large amount of Internet resources that third party administrative center is occupied by issuing a large amount of legal requests, may result in network paralysis；Separately
On the one hand, if attacker manages central firewalls using attack patterns such as bypass attacks, around third party, there is also system numbers
According to the risk of leakage.By existing electric car charge transaction embodiment, can not ensure both parties data safety and
The availability of charging system for electric automobile.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes that a kind of charging system for electric automobile realizes the side of decentralization Secure Transaction
Method.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the invention is realized by the following technical scheme:
A kind of method that charging system for electric automobile realizes decentralization Secure Transaction, electric car in this method and fills
Transaction is completed in the intelligent contract established in power station: when electric car issues charging transaction request, announcing public information, and right
Identity of automobile verification information in electric car is encrypted；Later charging station and electric car pass through intelligent contract data section into
Charging station selection is completed in row information interaction；After electric car reaches the charging station of selection, by the safety check of charging station and
Secondary safety check module in intelligent contract carries out safety verification, completes charge request transactional services.
As a further improvement of the present invention, the intelligent contract includes the data for being allocated to electric car and charging station
Module and the transaction modules traded between the two, the transaction modules include the secondary safety check module, go back
Including transaction execution module and payment affirmation module.
As a further improvement of the present invention, the data module for being allocated to the electric car includes public information and adds
Confidential information；The public information includes vehicle position information, vehicle power consumption and remaining capacity；According to the encryption information
The identity of automobile verification information that secure hash function and public private key systems are encrypted.
As a further improvement of the present invention, the identity of automobile verification information, specifically includes: automobile unique identifier
With the random string generated when issuing and charging transaction request.
As a further improvement of the present invention, when electric car issues charging transaction request, the random character of generation is ganged up
It crosses splicing automobile unique identifier and carries out secure Hash calculating, electric car is by distributing to the private key K of each automobile laterS
Obtained cryptographic Hash is encrypted.
As a further improvement of the present invention, the safety check and secondary safety check module according to encryption information into
The detailed process of row safety verification includes: that the automobile unique identifier that charging station will acquire and random string are spliced, meter
Calculate cryptographic Hash A；Using public key KuEncryption information is decrypted, cryptographic Hash B is obtained；It is whether equal with cryptographic Hash B to compare cryptographic Hash A, really
It is fixed whether to receive the Transaction Information that charges.
As a further improvement of the present invention, the private key KSOr public key KuIt is distributed by Certificate Authority.
As a further improvement of the present invention, the data module for being allocated to the charging station includes arrive at a station totle drilling cost and electricity
It can unit price；The totle drilling cost that totle drilling cost is arrive at a station consumption and waiting time that the electric car selects the station of arriving at a station；It is described
Electric energy unit price be charging station publication real-time electric energy unit price T.
As a further improvement of the present invention, after the charging transaction request information that electric car is issued to all charging stations,
Be less than all charging stations of 30km at a distance from electric car according to the public information of electric car in the data segment read,
The totle drilling cost for reaching each charging station is calculated, the corresponding electric energy unit price write-in of the totle drilling cost being calculated and the station is allocated to charging
The data module stood；Electric car reads the data module for being allocated to charging station, and selection can complete charging and the lowest cost
Charging station.
As a further improvement of the present invention, the intelligent contract is built upon on polygon transaction platform, electric car
Charging transaction request is externally issued based on being transferred to a certain number of guarantee fund into intelligent contract.
As a further improvement of the present invention, described.
Beneficial effects of the present invention: safety is carried out to the encrypted electric car of networking in intelligent contract in the present invention
Chemical examination card, the method for commerce of decentralization, issue of anonymity charge request that realization electric car orderly charges, protects electric car
The sensitive datas such as location information are not leaked, and ensure that transaction can be carried out safely and efficiently.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for constituting intelligent contract of the invention；
Fig. 2 is the operation schematic diagram of Certificate Authority；
Fig. 3 is charging system for electric automobile transaction flow overview diagram；
Fig. 4 is charging system for electric automobile detailed transaction flow chart；.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
As shown, electric car passes through in polygon transaction platform in charging system for electric automobile designed by the present invention
Intelligent contract in publication charging transaction request, wait each charging station to calculate service and respond；The charging station for meeting charge condition exists
Write service is responded in intelligent contract, is selected for the electric car；The electric car is by selecting a certain symbol after cost calculation
The charging station of conjunction condition charges, and completes charging transaction.
As shown in Figure 1, the intelligent contract includes the data module and progress two for being allocated to electric car and charging station
The transaction modules traded between person, the transaction modules include the secondary safety check module, transaction execution module and
Payment affirmation module.
The data module for being allocated to electric car includes two parts public information P and encryption information E.The open letter
Ceasing P includes vehicle position information, vehicle power consumption and remaining capacity.The encryption information E is identity of automobile verification information, specifically
The random string (RS) generated including automobile unique identifier (UID) and when issuing charging transaction request.Automobile unique identification
Code has determined the identity of the electric car, and it is charging transaction request that the electric car issues that random string, which has determined,.It sends
When the transaction request that charges, random string is generated, secure Hash calculating, obtained Kazakhstan are carried out by splicing automobile unique identifier
Uncommon value distributes to the private key K of each automobile by Certificate AuthoritySIt is encrypted.Encrypted data are as follows:
E=Ks(Hash(UID+RS))
Wherein, the Certificate Authority also announces public key to all electric cars and charging station, enters to each
The private key of the electric car distribution of net is uniquely, electric car to be needed properly to save.During encryption and decryption, made
Private key KSWith public key KuAs shown in Fig. 2, being distributed by Certificate Authority.
The data module for being allocated to charging station includes arrive at a station totle drilling cost C, electric energy unit price F.Totle drilling cost of arriving at a station C is charging station root
The overall cost of arrive at a station consumption and waiting time is calculated according to electric car public information P and charging station charging real-time condition；
Electric energy unit price F is the real-time electric energy unit price of the charging station business.The charging transaction request energy quilt externally issued due to electric car
All charging stations in respective range receive, therefore the charging station calculates cost according to the public information read,
The totle drilling cost being calculated is added to the totle drilling cost set of arriving at a station of charging station in intelligent contract data section.
After electric car makes a choice according to the data of charging station in intelligent contract data section and reaches charging station, charging station
Safety check and the secondary safety check module of intelligent contract code segment carry out the detailed process of safety verification are as follows: charge first
The automobile unique identifier and random string that station will acquire are spliced, and cryptographic Hash A is calculated；Then public key K is useduDecryption adds
Confidential information E obtains cryptographic Hash B；It is whether equal with cryptographic Hash B finally to compare cryptographic Hash A, it is determined whether receive charging transaction letter
Breath.The effect for comparing cryptographic Hash rather than directly comparing identity of automobile verification information is directly not believing encryption by public key
Breath decryption, ensure that the safety of private data.
Corresponding charging station includes that secondary safety check module carries out safe school by executing the transaction modules later
It tests to realize Secure Transaction.The transaction modules further include two parts of transaction execution module and payment affirmation module, are used for
Complete charging and reimbursement of expense.
Specific transaction step is as shown in Figure 3 and Figure 4:
Step 1: electric car publication charging transaction request.
Electric car is transferred to a certain number of ether coin into intelligent contract address as guarantee fund, while issuing charging and handing over
Easily request.Charging transaction request data include trading as the unique identifier of automobile user identity information, sending charging
Random string, vehicle location, the remaining capacity, vehicle power consumption generated when request.Unique identifier is user in information above
Register account number information；The positioning system acquisition that vehicle location can be carried from electric car obtains, and can also be manually entered, in order to
Privacy of user is protected to the full extent, preferably with being manually entered；Remaining capacity is obtained from the BMS interface program that electric car carries
?；Vehicle power consumption is that vehicle itself has attribute by oneself.By vehicle location, vehicle power consumption (such as hundred kilometers of power consumptions), total electricity F,
Remaining capacity is as public data P；By electric car unique identifier (UID) and the random string (RS) generated splicing, meter
The cryptographic Hash for calculating it, the private key K distributed by Certificate Authoritys, which is encrypted, as encryption data E.It will disclose
Data P, encryption data E and trade detail are written in the intelligent contract of polygon transaction platform.
Step 2: charging station Rule of judgment simultaneously calculates cost of arriving at a station.
Charging station judges whether the distance of automobile and website is less than 30KM according to the vehicle position information of electric car, protects
The website of card too far does not consider to complete the condition filter for the first time to charging station to the electric car service.If meeting first
Secondary condition filter, charging station are planned for stop line using the vehicle location in public data, electronic in conjunction with vehicle power consumption calculation
Power consumption needed for automobile reaches the station.Then according to charging station charging real time information, electric car is calculated in the charging station
Waiting time and it is expected that charging duration, calculate the totle drilling cost that electric car charges at the station.Calculated result is published to polygon
In the address of the corresponding intelligent contract of transaction platform, for electric car as alternative charging station.
Step 3: electric car selection charging station simultaneously arrives at a station.
Electric car reads the totle drilling cost C data that arrives at a station in intelligent contract appropriate address, analyzes each power station service and responds number
According to, the electric car is assessed to each comprehensive charging cost alternatively stood, and selects optimal charging station, and go to the station, it is public to the station
The random string (RS) generated when the unique identifier (UID) and publication charging transaction request of cloth oneself.
Step 4: charging station carries out safety check to electric car.
The charging station obtains the unique identifier (UID) and random string (RS) of the electric car, is spliced, and calculates
Cryptographic Hash A；Simultaneously with the encryption data E in public key decryptions intelligence contract appropriate address, B is obtained.
The charging station judges whether to be the charging transaction request from the vehicle by comparison A and B.If A equals B,
Allow to execute charging service；If A is not equal to B, refusal services it.
Step 5: executing charging service, complete transaction.
After safety check passes through, charging station executes intelligent contract code segment.When secondary in intelligent contract transaction modules
After safety check module execution passes through, the charging transaction request from the electric car is executed.After charging complete, then contract is pressed
It is settled accounts, executes the functional module part in intelligent contract: the electric energy unit price F and electric car itself issued according to charging station
Required charge volume T calculates transaction amount, and transaction terminates after the completion of payment.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of method that charging system for electric automobile realizes decentralization Secure Transaction, it is characterised in that:
Electric car and charging station in this method complete transaction in the intelligent contract established: electric car issues charging and hands over
When easily requesting, public information is announced, and encrypt to the identity of automobile verification information in electric car；Charging station and electricity later
Electrical automobile passes through intelligent contract data section and carries out information exchange, completes charging station selection；Electric car reaches the charging station of selection
Later, safety verification is carried out by the secondary safety check module in the safety check of charging station and intelligent contract, completes charging
Requests transaction service.
2. the method that a kind of charging system for electric automobile according to claim 1 realizes decentralization Secure Transaction, special
Sign is: the intelligent contract includes being allocated to the data module of electric car and charging station and being traded between the two
Transaction modules, the transaction modules include the secondary safety check module, further include that transaction execution module and payment are true
Recognize module.
3. the method that a kind of charging system for electric automobile according to claim 2 realizes decentralization Secure Transaction, special
Sign is: the data module for being allocated to the electric car includes public information and encryption information；
The public information includes vehicle position information, vehicle power consumption and remaining capacity；
The encryption information is the identity of automobile verification information encrypted according to secure hash function and public private key systems.
4. the side that a kind of charging system for electric automobile according to claim 1-3 realizes decentralization Secure Transaction
Method, which is characterized in that the identity of automobile verification information specifically includes: automobile unique identifier and sending charging transaction are asked
The random string generated when asking.
5. the method that a kind of charging system for electric automobile according to claim 4 realizes decentralization Secure Transaction, special
Sign is: when electric car issues charging transaction request, the random string of generation is carried out by splicing automobile unique identifier
Secure Hash calculates, and electric car is by distributing to the private key K of each automobile laterSObtained cryptographic Hash is encrypted.
6. the method that a kind of charging system for electric automobile according to claim 5 realizes decentralization Secure Transaction, special
Sign is: the safety check and secondary safety check module carry out the detailed process packet of safety verification according to encryption information
It includes:
The automobile unique identifier and random string that charging station will acquire are spliced, and cryptographic Hash A is calculated；
Using public key KuEncryption information is decrypted, cryptographic Hash B is obtained；
It is whether equal with cryptographic Hash B to compare cryptographic Hash A, it is determined whether receive charging Transaction Information.
7. the method that a kind of charging system for electric automobile according to claim 5 or 6 realizes decentralization Secure Transaction,
It is characterized in that: the private key KSOr public key KuIt is distributed by Certificate Authority.
8. the method that a kind of charging system for electric automobile according to claim 2 realizes decentralization Secure Transaction, special
Sign is: the data module for being allocated to the charging station includes arrive at a station totle drilling cost and electric energy unit price；
The totle drilling cost that totle drilling cost is arrive at a station consumption and waiting time that the electric car selects the station of arriving at a station；
The electric energy unit price is the real-time electric energy unit price T of charging station publication.
9. the method that a kind of charging system for electric automobile according to claim 8 realizes decentralization Secure Transaction, special
Sign is: after the charging transaction request information that electric car is issued to all charging stations, 30km is less than at a distance from electric car
All charging stations according to the public information of electric car in the data segment read, calculate the assembly for reaching each charging station
The corresponding electric energy unit price write-in of the totle drilling cost being calculated and the station, is allocated to the data module of charging station by this；Electric car
The data module for being allocated to charging station is read, selection can complete the charging station of charging and the lowest cost.
10. the method that a kind of charging system for electric automobile according to claim 1 realizes decentralization Secure Transaction, special
Sign is: the intelligent contract is built upon on polygon transaction platform, and electric car is to be transferred to certain number into intelligent contract
Charging transaction request is externally issued based on the guarantee fund of amount.
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| CN201811176692.XA CN109410056A (en) | 2018-10-10 | 2018-10-10 | A kind of method that charging system for electric automobile realizes decentralization Secure Transaction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111885056A (en) * | 2020-07-22 | 2020-11-03 | 北京金山云网络技术有限公司 | Zero knowledge proving method and device based on block chain and electronic equipment |
| CN112216026A (en) * | 2020-09-03 | 2021-01-12 | 北京握奇智能科技有限公司 | Electric vehicle charging non-inductive payment method and system based on front-mounted OBU |
| CN112581133A (en) * | 2020-12-25 | 2021-03-30 | 中国农业银行股份有限公司 | Transaction data processing method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885056A (en) * | 2020-07-22 | 2020-11-03 | 北京金山云网络技术有限公司 | Zero knowledge proving method and device based on block chain and electronic equipment |
| CN112216026A (en) * | 2020-09-03 | 2021-01-12 | 北京握奇智能科技有限公司 | Electric vehicle charging non-inductive payment method and system based on front-mounted OBU |
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Application publication date: 20190301 |
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