CN104077814A - Electronic no-parking charging system, device, authentication method and trading method - Google Patents
Electronic no-parking charging system, device, authentication method and trading method Download PDFInfo
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- CN104077814A CN104077814A CN201310110053.4A CN201310110053A CN104077814A CN 104077814 A CN104077814 A CN 104077814A CN 201310110053 A CN201310110053 A CN 201310110053A CN 104077814 A CN104077814 A CN 104077814A
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Abstract
The invention discloses an electronic no-parking charging system, device, authentication method and trading method. First equipment is used for encrypting object data by a preset first secrete key to obtain first object data ciphertext, and the first object data ciphertext and the object data are sent to second equipment; the second equipment is used for decrypting the first object data by a preset third secrete key to obtain first result data, if the first result data and the object data are different, it shows that the first secrete key used by the first equipment is the same as the third secrete key used by the second equipment, and accordingly the second equipment passes authentication of the first equipment. Subsequent transaction is conducted based on successful authentication, transaction data can not be monitored or even tampered or leaked, and the safety of the data in the traction process is guaranteed.
Description
Technical field
The application relates to intelligent transport technology field, relates in particular to a kind of electronic charging system without parking, equipment, authentication method and method of commerce that is applied to parking lot.
Background technology
Electric non-stop toll (Electronic Toll Collection, ETC) be a kind of do not need to stop pay the fees the toll collection technique by charge station.Vehicle completes charging process by installation car carrier unit (On-Board Unit, OBU) and roadside unit (Road-Side Unit, RSU) communication.OBU stores its identity identification information, information of vehicles (as license plate number, vehicle etc.) etc., and can read card image.RSU is generally arranged on the portal frame of charge station's track front end, and itself and OBU wireless telecommunications obtain card image and also send it to charge subsystem, complete corresponding fee deduction treatment.
Because existing ETC process is only process of exchange, by OBU, the card image reading is sent to RSU, and then by charge subsystem, complete correspondence and deduct fees, therefore, transaction data in process of exchange is easily monitored, and then transaction data is easily tampered or reveals, and data security can not get ensureing.
Summary of the invention
The application provides a kind of electronic charging system without parking, equipment, authentication method and method of commerce, to ensure the security of data.
According to the application's first aspect, the application provides the equipment authentication method in a kind of electronic charging system without parking, and described method comprises:
Described the first equipment is encrypted and obtains the first object data ciphertext object data with the first key of presetting, and described the first object data ciphertext and object data are sent to the second equipment;
Described the second equipment to the first object data decrypt ciphertext, obtains the first result data with the 3rd key preset, if described the first result data is identical with object data, described the second equipment is by the authentication to the first equipment.
According to the application's second aspect, the application provides a kind of method of commerce of electronic charging system without parking, comprising:
Roadside unit and the authentication method of board units based on as described in any one in claim 1-4 as described the first equipment and the second equipment authenticates respectively;
After described authentication is passed through, described board units is sent to charge subsystem by the card image reading by roadside unit, and described charge subsystem feedback is deducted fees information to card.
According to the application's the third aspect, the application provides the first equipment in a kind of electronic charging system without parking, and it,, for carrying out information interaction with the second equipment of electronic charging system without parking, comprising:
Storage unit, for storing the first key;
Ciphering unit, for being encrypted and obtaining the first object data ciphertext object data with described the first key;
Transmitting element, for described the first object data ciphertext and object data are sent to the second equipment, authenticates the first equipment based on the first object data ciphertext and object data to trigger described the second equipment.
According to the application's fourth aspect, the application provides the second equipment in a kind of electronic charging system without parking, and it,, for carrying out information interaction with the first equipment of electronic charging system without parking, comprising:
Storage unit, for storing the 3rd key;
Receiving element, for receiving object data from the first equipment, and is encrypted the first object data ciphertext obtaining to object data with the first key;
Decryption unit, for the 3rd key to the first object data decrypt ciphertext, obtain the first result data;
Authentication ' unit, identical with object data for working as described the first result data, by the authentication to the first equipment.
According to the application's the 5th aspect, the application provides a kind of electronic charging system without parking, and described system comprises as above-mentioned the first equipment, and as above-mentioned the second equipment.
The application's beneficial effect is:
By a kind of electronic charging system without parking, equipment, authentication method and method of commerce are provided, the first equipment is encrypted and obtains the first object data ciphertext object data with the first key of presetting, and described the first object data ciphertext and object data are sent to the second equipment; The second equipment with the 3rd key preset to the first object data decrypt ciphertext, obtain the first result data, if the first result data is identical with object data, show that the first equipment the first key used and the second equipment the 3rd key used is identical, the second equipment passes through the authentication to the first equipment with this, and follow-up transaction is carried out based on authentication success, transaction data can monitoredly even not distorted, reveal, and has ensured the security of data in process of exchange.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of method of commerce of the ETC system of the embodiment of the present application one;
Fig. 2 is the structural representation of the ETC system of the embodiment of the present application;
Fig. 3 is the process flow diagram of method of commerce of the ETC system of the embodiment of the present application two;
Fig. 4 is the supplementary flow chart of method of commerce of the ETC system of the embodiment of the present application three;
Fig. 5 is the structural representation of the RSU202 of the embodiment of the present application one;
Fig. 6 is the structural representation of the OBU201 of the embodiment of the present application one;
Fig. 7 is the structural representation of the RSU202 of the embodiment of the present application two;
Fig. 8 is the structural representation of the OBU201 of the embodiment of the present application two.
Embodiment
Below by embodiment, by reference to the accompanying drawings the application is described in further detail.
Embodiment mono-:
Please refer to Fig. 1, the method of commerce of the ETC system of the present embodiment is the ETC system based on as shown in Figure 2 mainly, this ETC system applies is in parking lot, it comprises by the OBU201 of wireless connections and RSU202, OBU201 is assemblied on vehicle, and can read card image, and RSU202 is assemblied in the place, gateway in parking lot, and RSU202 is also connected with charge subsystem 203, thereby being sent to charge subsystem 203, the card image obtaining from OBU201 carries out corresponding fee deduction treatment.Compared to expressway environment, parking lot environment is more complicated, more easily produces the safety issue of transaction, and therefore, the method for the present embodiment, Apparatus and system can carry out safeguard protection to ETC process of exchange better, guarantees the reliability of transaction.Above-mentioned method of commerce mainly comprises following flow process:
Step 101, RSU202 is encrypted object data with the first key, obtains the first object data ciphertext, particularly, object data can be random number or other data that generate and store in advance that RSU202 generates, such as 8 byte random numbers, 16 byte random numbers etc.; RSU202 is with the cryptographic algorithm of arranging in verification process and adopt the first key to be encrypted object data, thereby obtains the first object data ciphertext; The first key preexists in RSU202;
Step 102, RSU202 is sent to OBU201 by the first object data ciphertext and object data, and particularly, the first object data ciphertext and object data portability are in BST frame;
Step 103, OBU201 to the first object data decrypt ciphertext, obtains the first result data, particularly with the 3rd key, OBU201 is the decipherment algorithm to arrange in verification process and adopts the 3rd key to be decrypted the first object data ciphertext, thereby obtains the first result data; The 3rd key preexists in OBU201;
Step 104, if the object data that OBU201 deciphering gained the first result data receives with it is identical, by the authentication to RSU202, particularly, if the object data that OBU201 deciphering gained the first result data receives with it is identical, show that it is corresponding with the decipherment algorithm that OBU201 deciphering adopts that RSU202 encrypts the cryptographic algorithm adopting, and RSU202 encrypts the first key adopt to decipher with OBU201 the 3rd key adopting be identical, OBU201 can pass through the authentication to RSU202 so; If the object data that OBU201 deciphering gained the first result data receives with it is not identical, so can the described transaction processing process of triggering following step 105-step 108;
Step 105, OBU201 passes through after the authentication of RSU202, and OBU201 reads card image;
Step 106, OBU201 sends to RSU202 by card image;
Step 107, RSU202 sends to charge subsystem 203 by card image and verifies;
Step 108, after card is verified, carries out the process of deducting fees of this ETC between card, OBU201, RSU202 and charge subsystem 203, specifically can comprise to this information of deducting fees of card write, deducting fees writes feedback, completes payment record etc.
Correspondingly, the RSU202 of the present embodiment mainly comprises structure as shown in Figure 5:
The first storage unit 501, for storing the first key;
The first ciphering unit 502, for being encrypted and obtaining the first object data ciphertext object data with the first key;
The first transmitting element 503, for the first object data ciphertext and object data are sent to OBU201, authenticates RSU202 based on the first object data ciphertext and object data to trigger OBU201.
And the OBU201 of the present embodiment mainly comprises structure as shown in Figure 6:
The second storage unit 601, for storing the 3rd key;
The second receiving element 602, for receiving object data from RSU202, and is encrypted the first object data ciphertext obtaining to object data with the first key;
The second decryption unit 603, for the 3rd key to the first object data decrypt ciphertext, obtain the first result data;
The second authentication ' unit 604, identical with object data for working as the first result data, by the authentication to RSU202.
Embodiment bis-:
Please refer to Fig. 3, the present embodiment and embodiment mono-difference are mainly: between step 104 and step 105, also comprise following flow process:
Step 301, when OBU201 is by the authentication to RSU202, OBU201 is encrypted composition-factor with the 3rd key, obtain composition-factor ciphertext, particularly, OBU201 is the cryptographic algorithm to arrange in verification process and adopts the 3rd key to be encrypted composition-factor, thereby obtain composition-factor ciphertext, composition-factor is pre-stored within OBU201, and composition-factor is unique corresponding with OBU201, composition-factor can be contract sequence number or other data mode of OBU201, and contract sequence number can be the random number of 8 bytes or 16 bytes etc.;
Step 302, OBU201 is encrypted and obtains second object data ciphertext object data with the 4th key, particularly, OBU201 is the cryptographic algorithm to arrange in verification process and adopts the 4th key to be encrypted object data, thereby obtains second object data ciphertext; The 4th key preexists in OBU201; And in second object data ciphertext, can also comprise the identity identification information of the OBU201 that adopts the 4th secret key encryption and information of vehicles etc.;
Step 303, OBU201 is sent to RSU202 by composition-factor ciphertext and second object data ciphertext, particularly, in composition-factor ciphertext and second object data ciphertext portability and VST frame;
Step 304, RSU202 with the first key to composition-factor decrypt ciphertext, obtain the second result data, particularly, if it is corresponding with the decipherment algorithm that OBU201 deciphering adopts that OBU201 encrypts the cryptographic algorithm adopting, and OBU201 encrypts the 3rd key adopt to decipher with RSU202 the first key adopting be identical, so, RSU202 must be exactly composition-factor to resulting the second result data of composition-factor decrypt ciphertext;
Step 305, RSU202 generates the 5th key by the second result data and the second key, particularly, can the second result data be that dispersion factor disperses to obtain the 5th key to the second key; If the 4th key is generated by the second key and composition-factor just, and the second result data is above-mentioned composition-factor, and so, the 5th key is identical with the 4th key; When composition-factor is 8 byte random number, the 4th key can be to take composition-factor the second key to be disperseed to obtain as dispersion factor; The second key preexists in RSU202, and the second key can be generated by certain way by two, three, four or other a plurality of root keys, as dispersing mode etc.;
Step 306, RSU202 to second object data decrypt ciphertext, obtains the 3rd result data with the 5th key;
Step 307, if RSU202 deciphering gained the 3rd result data is identical with object data, RSU202 is by the authentication to OBU201, particularly, if it is identical with the 5th key that RSU202 deciphering adopts that OBU201 encrypts the 4th key adopting, RSU202 must be exactly the mentioned object data of step 101 to resulting the 3rd result data of second object data decrypt ciphertext so, and then RSU202 can pass through the authentication to OBU201; If RSU202 deciphering gained the 3rd result data object data mentioned with step 101 is not identical, transaction processing process that so can the described transaction processing process of triggering following step 105-step 108.
Correspondingly, the RSU202 of the present embodiment mainly also comprises structure as shown in Figure 7:
The first storage unit 501 also stores the second key, and RSU202 further comprises:
The first receiving element 701, for when OBU201 passes through the authentication to RSU202 based on the first object data ciphertext and object data, from OBU201, receive and with the 3rd key, one composition-factor is encrypted the composition-factor ciphertext obtaining, and with the 4th key, object data being encrypted the second object data ciphertext obtaining, composition-factor is corresponding with the second equipment;
The first decryption unit 702, for the first key to composition-factor decrypt ciphertext, obtain the second result data, and the 5th key to be generated by the second result data and the second key, to second object data decrypt ciphertext, obtain the 3rd result data;
The first authentication ' unit 703, for when the 3rd result data is when identical with object data, by the authentication to OBU201.
The OBU201 of the present embodiment mainly also comprises structure as shown in Figure 8:
The second storage unit 601 also stores the 4th key and composition-factor, and OBU201 also comprises:
The second ciphering unit 801, for when when to the authentication of RSU202, is encrypted and obtains composition-factor ciphertext composition-factor with the 3rd key, and with the 4th key, object data is encrypted and obtains second object data ciphertext;
The second transmitting element 802, for composition-factor ciphertext and second object data ciphertext are sent to RSU202, authenticates OBU201 based on composition-factor ciphertext and second object data ciphertext to trigger RSU202.
Embodiment tri-:
Please refer to Fig. 4, the present embodiment has increased the identity identification information of composition-factor, OBU201 and the importing process of the 4th key in OBU201 on embodiment bis-bases:
Step 401, is encrypted with producer's key the 4th key, obtains importing ciphertext;
Step 402, by the identity identification information of composition-factor, OBU201, the 3rd key, and importing ciphertext is stored in an importing card;
Step 403, OBU201 obtains composition-factor, identity identification information and the 3rd key from import card, and is decrypted importing ciphertext with producer's key of its storage, obtains the 4th key.After importing completes, the information in erasable importing card, blocks and guarantees data security to reuse to import.
And the first key in RSU202 and the 3rd key can write in consumption safety memory module (Purchase Secure Access Module, the PSAM) card or other types card that RSU202 supports.
After the identity identification information of composition-factor, OBU201 and the 4th key are imported into, can carry out embodiment mono-or the described method of commerce of embodiment bis-.
The following points that need explanation:
1, involved cryptographic algorithm, the decipherment algorithm of OBU201, RSU202, and key schedule can adopt various prior aries (as triple data encryption algorithm etc.), or the combination of prior art.But should be noted, for making to complete authentication between legal OBU201, RSU202, related cryptographic algorithm, decipherment algorithm, and key schedule should be identical or corresponding.
2, the first equipment of the application's ETC and the second equipment correspondence are described with RSU202 and OBU201, are understandable that, other types equipment, also should be within the application's protection domain so long as adopt the application's authentication method or method of commerce.
The electronic charging system without parking of the embodiment of the present application one, equipment, authentication method and method of commerce, it is mainly the consistency checking by object data, realized the authentication of OBU201 to RSU202, thereby reach following beneficial effect: follow-up transaction is carried out based on this authentication success, transaction data can monitoredly even not distorted, reveal, and has ensured the security of data in process of exchange; The electronic charging system without parking of the embodiment of the present application one, equipment, authentication method and method of commerce, mainly further by the consistency checking of object data, realized the authentication of OBU201 to RSU202, and the authentication of RSU202 to OBU201, be two-way authentication, thereby further strengthened above-mentioned beneficial effect; The electronic charging system without parking of the embodiment of the present application three, equipment, authentication method and method of commerce, be mainly further to have increased information importing process, thereby make scheme more perfect, is convenient to implement.
Above content is the further description of the application being done in conjunction with concrete embodiment, can not assert that the application's concrete enforcement is confined to these explanations.For the application person of an ordinary skill in the technical field, not departing under the prerequisite of the application's design, can also make some simple deduction or replace.
Claims (10)
1. the equipment authentication method in electronic charging system without parking, is characterized in that, comprising:
Described the first equipment is encrypted and obtains the first object data ciphertext object data with the first key of presetting, and described the first object data ciphertext and object data are sent to the second equipment;
Described the second equipment to the first object data decrypt ciphertext, obtains the first result data with the 3rd key preset, if described the first result data is identical with object data, described the second equipment is by the authentication to the first equipment.
2. authentication method as claimed in claim 1, is characterized in that, described method also comprises:
When described the second equipment is by the authentication to the first equipment, described the second equipment is encrypted and obtains composition-factor ciphertext default and the composition-factor corresponding with the second equipment with the 3rd key, and with the 4th key of presetting, described object data is encrypted and obtains second object data ciphertext, and described composition-factor ciphertext and second object data ciphertext are sent to the first equipment;
Described the first equipment with the first key to composition-factor decrypt ciphertext, obtain the second result data, and the 5th key to be generated by described the second result data and the second default key, to described second object data decrypt ciphertext, obtain the 3rd result data, if described the 3rd result data is identical with object data, described the first equipment is by the authentication to the second equipment.
3. authentication method as claimed in claim 2, is characterized in that, described the second device storage has producer's key, and described method also comprises:
By the identity identification information of described composition-factor, the second equipment, the 3rd key, and described the 4th key is stored to and imports in card through producer's secret key encryption gained importing ciphertext;
Described the second equipment obtains described composition-factor, identity identification information, the 3rd key from described importing card, and to import ciphertext gained the 4th key described in described producer secret key decryption.
4. authentication method as claimed in claim 2, it is characterized in that, described object data is the random number that the first equipment generates, described the second key is generated by least two root keys, described composition-factor is contract sequence number, and described the 5th key is that dispersion factor disperses to obtain for the second key being adopted to contract sequence number.
5. a method of commerce for electronic charging system without parking, is characterized in that, comprising:
Roadside unit and the authentication method of board units based on as described in any one in claim 1-4 as described the first equipment and the second equipment authenticates respectively;
After described authentication is passed through, described board units is sent to charge subsystem by the card image reading by roadside unit, to deduct fees.
6. first equipment in electronic charging system without parking, it for carrying out information interaction with the second equipment of electronic charging system without parking, is characterized in that, comprising:
Storage unit, for storing the first key;
Ciphering unit, for being encrypted and obtaining the first object data ciphertext object data with described the first key;
Transmitting element, for described the first object data ciphertext and object data are sent to the second equipment, authenticates the first equipment based on the first object data ciphertext and object data to trigger described the second equipment.
7. the first equipment as claimed in claim 6, is characterized in that, described storage unit also stores the second key, and described the first equipment also comprises:
Receiving element, for when described the second equipment passes through the authentication to the first equipment based on the first object data ciphertext and object data, from described the second equipment, receive and with the 3rd key, one composition-factor is encrypted the composition-factor ciphertext obtaining, and with the 4th key, described object data being encrypted the second object data ciphertext obtaining, described composition-factor is corresponding with the second equipment;
Decryption unit, for described the first key to composition-factor decrypt ciphertext, obtain the second result data, and the 5th key to be generated by described the second result data and the second key, to described second object data decrypt ciphertext, obtain the 3rd result data;
Authentication ' unit, for when described the 3rd result data is when identical with object data, by the authentication to the second equipment.
8. second equipment in electronic charging system without parking, it for carrying out information interaction with the first equipment of electronic charging system without parking, is characterized in that, comprising:
Storage unit, for storing the 3rd key;
Receiving element, for receiving object data from the first equipment, and is encrypted the first object data ciphertext obtaining to object data with the first key;
Decryption unit, for the 3rd key to the first object data decrypt ciphertext, obtain the first result data;
Authentication ' unit, identical with object data for working as described the first result data, by the authentication to the first equipment.
9. the second equipment as claimed in claim 8, is characterized in that, described storage unit also stores the 4th key and composition-factor, and described the second equipment also comprises:
Ciphering unit, for when when to the authentication of described the first equipment, is encrypted and obtains composition-factor ciphertext composition-factor with the 3rd key, and with the 4th key, described object data is encrypted and obtains second object data ciphertext;
Transmitting element, for described composition-factor ciphertext and second object data ciphertext are sent to the first equipment, authenticates the second equipment based on composition-factor ciphertext and second object data ciphertext to trigger described the first equipment.
10. an electronic charging system without parking, is characterized in that, described system comprises the first equipment as described in claim 6 or 7, and the second equipment as claimed in claim 8 or 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310110053.4A CN104077814B (en) | 2013-03-29 | 2013-03-29 | Electronic charging system without parking, equipment, authentication method and method of commerce |
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| CN201310110053.4A CN104077814B (en) | 2013-03-29 | 2013-03-29 | Electronic charging system without parking, equipment, authentication method and method of commerce |
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| CN104077814A true CN104077814A (en) | 2014-10-01 |
| CN104077814B CN104077814B (en) | 2017-07-11 |
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| CN112785734A (en) * | 2020-12-29 | 2021-05-11 | 瓴盛科技有限公司 | Electronic toll collection system and method based on bidirectional authentication |
| CN113011870A (en) * | 2021-02-02 | 2021-06-22 | 北京易路行技术有限公司 | Method and device for carrying out user card loading through ETC antenna |
| CN113011870B (en) * | 2021-02-02 | 2024-05-07 | 北京易路行技术有限公司 | Method and device for carrying out user card loading through ETC antenna |
| CN113453223A (en) * | 2021-06-07 | 2021-09-28 | 北京聚利科技有限公司 | Key updating method, system, device, storage medium and terminal |
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