CN100576279C - A kind of method that prevents to cheat the electronic license plate recognition system - Google Patents
A kind of method that prevents to cheat the electronic license plate recognition system Download PDFInfo
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- CN100576279C CN100576279C CN200610061970A CN200610061970A CN100576279C CN 100576279 C CN100576279 C CN 100576279C CN 200610061970 A CN200610061970 A CN 200610061970A CN 200610061970 A CN200610061970 A CN 200610061970A CN 100576279 C CN100576279 C CN 100576279C
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- license plate
- electronic license
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000006854 communication Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The present invention relates to a kind of method that prevents to cheat the electronic license plate recognition system.May further comprise the steps: (one) reading device sends querying command to electronic license plate, sends a random signal train number simultaneously; (2) electronic license plate is after receiving query statement and random signal train number, number the content of having stored in the electronic license plate carried out regular encryption according to random signal train, and encrypted result is sent to reading device together; (3) after reading device is received the encrypted result of electronic license plate transmission, encryption rule during again according to electronic license plate is oppositely deciphered, R among the result after will deciphering again and the random signal train that sends number are compared, and comparing consistent is true electronic license plate response message; Otherwise be the deceptive information of false electronic license plate.Because Crypted password that transmits between electronic license plate and the reading device and encrypted result are according to the certain rules correspondence, and Crypted password produces at random, therefore, even this preserves it get off with regard to making the third party intercept Content of communciation, also can not make transponder and make false electronic license plate by the eavesdropping of limited number of time.
Description
Technical field
The present invention relates to prevent to cheat the method for electronic license plate recognition system.
Prior art
Traditional irony car plate is because easily imitated, and counterfeit cost is low, and government lacks effective means inspection, causes the false-trademark fake-licensed car to spread unchecked.Mainly overlap the mode of board at road traveling owing to steal the vehicle of robbing, smuggling with false-trademark, therefore the false-trademark fake-licensed car spreads unchecked except destroying the vehicular traffic control order, also grow criminal offences such as a large amount of vehicle robbers robs, smuggling, had a strong impact on public order.
Because the RFID radio frequency chip has only unique identifier in the whole world, adopting the made electronic license plate hardware of RFID radio frequency chip is unique (program and the other parts the canned data in electronic license plate are called electronic license plate hardware) in the whole world.The fake producer will make electronic license plate hardware and have only two methods, and the one, oneself found the factory and produce the RFID chip, the 2nd, conspire with existing RFID chip manufacturer.Need huge investment owing to invest to build RFID chip production line, the fake producer does not possess such financial strength, therefore can't produce voluntarily; Need huge investment just because of investing to build the RFID chip, the chip manufacturing commercial city is world-renowned company, and these companies are for observing the requirement of RFID international standard, the identifier of each RFID chip of manufacturing must be different, can not conspire with the fake producer, repeat to make the RFID chip of same identifier.Therefore adopt the electronic license plate of RFID chip to have anti-function, promptly the fake producer can not copy out living electronic license plate hardware.
If electronic license plate has been installed on the vehicle, because the profile of electronic license plate is easy to fake, the law enfrocement official of government really judges electronic license plate and reads by the RFID fetch equipment that canned data in the electronic license plate realizes, therefore only the hardware of electronic license plate is prevented it being useless, should be on the basis that electronic license plate hardware is prevented, canned data in the electronic license plate is prevented making the hardware of electronic license plate and the content of storage all is that the world is unique, and both are one-to-one relationships.For reaching this purpose, global unique identifier of desiring canned data and hardware need be carried out 128 or 256 bit encryptions together, the information stores after will encrypting then is in electronic license plate.When electronic license plate and fetch equipment carry out communication, simultaneously globally unique identifier of hardware and enciphered message are sent to reading device simultaneously, to after the enciphered message deciphering the unique identifier of the global unique identifier in the enciphered message and the hardware whole world being compared, judge the true of electronic license plate.
The RFID chip that is applied to electronic license plate at present has two types, i.e. passive electronic label chip and active electronic label chip, and corresponding electronic license plate is respectively passive electronic car plate and active electronic car plate.The passive electronic car plate does not have battery, relies on the energy that absorbs external electromagnetic waves to carry out work, and its advantage is that cost is low, and shortcoming is that wireless communication distance is short, generally about 10 meters.Internal battery in the active electronic car plate relies on self powered battery, and its shortcoming is relative passive electronic label, and cost is high slightly, and advantage is that communication distance is long, can reach 200～300 meters.
Because at present used passive the and active RFID chip of electronic license plate all is the chips that satisfy the standard communications protocol that international RFID organizes to set up, can communicate with one another with reading device and the RFID chip of guaranteeing different vendor, and the RFID chip that each chip manufacturer produced does not allow chip operation user written program voluntarily yet.Because the publicity of communications protocol, when electronic license plate and fetch equipment carried out communication, the third party can be easy to intercept Content of communciation, and it is preserved, and makes a transponder then, and transponder is placed in the car.When the law enfrocement official uses reading device that electronic license plate is inquired about, transponder will intercept content and send to reading device, can cheat the law enfrocement official.
Summary of the invention
The purpose of this invention is to provide a kind of method that prevents to cheat the electronic license plate recognition system, make the technical matters that the method for transponder is pretended to be true electronic license plate because of easy by eavesdropping Content of communciation with the existing electronic license plate recognition system that solves.
In order to solve above technical matters, the technical scheme that the present invention takes is:
A kind of method that prevents to cheat the electronic license plate recognition system is characterized in that, may further comprise the steps:
(1) reading device sends querying command to electronic license plate, sends a random signal train number simultaneously;
(2) electronic license plate is after receiving query statement and random signal train number, number the content of having stored in the electronic license plate carried out regular encryption according to random signal train, and encrypted result is sent to reading device together;
(3) after reading device was received the encrypted result that electronic license plate sends, the encryption rule during again according to electronic license plate was oppositely deciphered, and decrypted result and the random signal train that sends number was compared again, and comparing consistent is true electronic license plate response message; Otherwise be the deceptive information of false electronic license plate.
The content of having stored in the described electronic license plate comprises the globally unique identifier number of electronic license plate, the initial password of electronic license plate and the information of information of vehicles, in the described step (three) decrypted result and the random signal train that sends number are compared and directly be not defined as true electronic license plate after consistent, content and the administrative center's canned data stored in the electronic license plate that obtains after also continuing to decipher are compared, comparison is consistent just to be judged to be true electronic license plate, otherwise still is judged to be false electronic license plate.
Also be provided with the radio communication key between described reading device and electronic license plate.
After having adopted technique scheme, because Crypted password that transmits between electronic license plate and the reading device and encrypted result are according to the certain rules correspondence, and Crypted password produces at random, therefore, even this preserves it get off with regard to making the third party intercept Content of communciation, also can not make transponder and make false electronic license plate by the eavesdropping of limited number of time.Solved the existing method that prevents that canned data is eavesdropped in the electronic license plate and made the technical matters that the method for transponder is pretended to be true electronic license plate by eavesdropping Content of communciation because of easy.
Description of drawings
Fig. 1 is the process flow diagram of the specific embodiment of the invention one.
Fig. 2 is the process flow diagram of the specific embodiment of the invention two.
Embodiment
Embodiment one
As shown in Figure 1, a kind of method that prevents to cheat the electronic license plate recognition system may further comprise the steps:
(1) reading device sends querying command to electronic license plate, sends a random signal train R simultaneously;
(2) electronic license plate is after receiving query statement and random signal train R, according to random signal train R the content U that has stored in the electronic license plate is carried out regular encryption F (RU), and encrypted result F (RU) sent to reading device together, the content U that has stored in the electronic license plate comprises the globally unique identifier number of electronic license plate, the initial password of electronic license plate and the information of information of vehicles;
(3) after reading device is received the encrypted result of electronic license plate transmission, oppositely decipher according to the encryption rule of electronic license plate again, again decrypted result R ' and random signal train R are compared, compare the inconsistent false electronic license plate that is judged to be, content and administrative center's information of storing in the electronic license plate that will obtain after will deciphering again after the comparison unanimity are compared, and comparing consistent is true electronic license plate response message; Otherwise be the deceptive information of false electronic license plate.
Embodiment two
As shown in Figure 2, a kind of method that prevents to cheat the electronic license plate recognition system may further comprise the steps:
1. at first when electronic license plate (Tag) initialization, with the UID of globally unique identifier of electronic license plate
Tag, initial key Ko and radio communication key K
2Write safety chip;
2. when vehicle management center is provided electronic license plate, use key K
128Information of vehicles (as the number-plate number, chassis sign, Motor Number, car owner's name, operation sign etc.) is carried out 128/256 bit encryption, obtain encrypted content U, then encrypted content U and initial key Ko version number are stored in the electronic license plate (Tag).
Wherein:
K
128＝f(UID
Tag，Ko)
Aforesaid equation guarantees the key K in each electronic license plate (Tag)
128All be different, also do not have general significance at cracking of data encryption key in the electronic license plate.
3. reading device (Reader) mails to the interrogation signals employing plain code signal of electronic license plate, but additional random burst R, to guarantee each interrogation signals content difference that sends outward.
4. electronic license plate (Tag) adopts symmetric encryption method to the data communication between the reading device (Reader), and promptly reading device (Reader) has identical key K with electronic license plate (Tag)
2Electronic license plate (Tag) at first produces random algorithm A after receiving the interrogation signals that reading device sends, form K by random signal train R and random algorithm label A
1, that is:
K
1＝A(R)
Use key K then
2Encrypt K
1Obtain key K.Key K will be encrypted " information of vehicles+UID
Tag+ R " obtain encrypted content D, then " D+A " externally sent, wherein UID
TagBe the globally unique identifier of electronic license plate number.
Therefore key K in the above-mentioned algorithm has guaranteed the key K difference that each signal transmits owing to relevant with random algorithm label A with the random signal train R of reading device (Reader) generation, just nonsensical to cracking of key K.
5. after reading device (Reader) is received " D+A ", at first use formula K
1=A (R) calculates K
1, use key K again
2Encrypt K
1Obtain key K, with key K D is decrypted then, obtain R, UID
TagAnd information of vehicles, with UID
TagCompare with information of vehicles and administrative center's canned data, consistent is true electronic license plate, otherwise is false electronic license plate.
6. in order to prevent K
0And K
2Be cracked the annual K that when the vehicle annual test, changes
0And K
2
After having adopted technique scheme, because Crypted password that transmits between electronic license plate and the reading device and encrypted result are according to the certain rules correspondence, and Crypted password is relevant with random number and random algorithm, even therefore this preserves it get off with regard to making the third party intercept Content of communciation, also possesses the ability that cracks 128 symmetric encipherment algorithms, but because formula A is underground and at random, so it can't crack and obtains basic key K
2With formula A.
To same reading device (Reader) and same electronic license plate (Tag), because each interrogation signals is all different with communication data, has solved the existing method that prevents that canned data is eavesdropped in the electronic license plate and made the technical matters that the method for transponder is pretended to be true electronic license plate by eavesdropping Content of communciation because of easy.
To same electronic license plate, the data that send to reading device will be up to 2
64=18,446,744,073,709,552,000 kinds of different forms, unless false electronic license plate known encryption algorithm and key, otherwise can't and send data by exhaustive mode record data with the deception reading device.
Adopt this kind method can accomplish that electronic license plate is when carrying out communication with reading device, each content that sends is different, even communication data is eavesdropped in communication process, also can't cheat reading device in the transponder with being received within the eavesdropping, because the each random signal train R that sends of same reading device is different, electronic license plate also is different according to the encrypted result that different random signal train R is generated, after reading device is received deception information in the transponder, if it is invalid being decrypted resultant data layout according to the encrypted instruction that oneself sends, then can judge is deceptive information.
Claims (3)
1, a kind of method that prevents to cheat the electronic license plate recognition system is characterized in that, may further comprise the steps:
(1) reading device sends querying command to electronic license plate, sends a random signal train number simultaneously;
(2) electronic license plate carries out regular encryption according to random signal train R to the content of having stored in the electronic license plate after receiving query statement and random signal train number, and encrypted result is sent to reading device together;
(3) after reading device is received the encrypted result that electronic license plate sends, oppositely decipher according to the encryption rule of electronic license plate, result after will decipher again and the random signal train that sends number are compared again, and comparing consistent is true electronic license plate response message; Otherwise be the deceptive information of false electronic license plate.
2, the method that prevents to cheat the electronic license plate recognition system as claimed in claim 1, it is characterized in that, the content of having stored in the described electronic license plate comprises the globally unique identifier number of electronic license plate, the initial password of electronic license plate and the information of information of vehicles, in the described step (three) decrypted result and the random signal train that sends number are compared and directly be not defined as true electronic license plate after consistent, content and the administrative center's canned data stored in the electronic license plate that obtains after also continuing to decipher are compared, comparison is consistent just to be judged to be true electronic license plate, otherwise still is judged to be false electronic license plate.
3, the method that prevents to cheat the electronic license plate recognition system as claimed in claim 2 is characterized in that, also is provided with the radio communication key between described reading device and electronic license plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610061970A CN100576279C (en) | 2006-08-04 | 2006-08-04 | A kind of method that prevents to cheat the electronic license plate recognition system |
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| CN200610061970A CN100576279C (en) | 2006-08-04 | 2006-08-04 | A kind of method that prevents to cheat the electronic license plate recognition system |
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| CN101021973A CN101021973A (en) | 2007-08-22 |
| CN100576279C true CN100576279C (en) | 2009-12-30 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708693A (en) * | 2012-06-04 | 2012-10-03 | 南京城市智能交通有限公司 | Intelligent transportation data acquisition system and working method thereof |
| CN104346643B (en) * | 2013-08-09 | 2017-10-31 | 江苏本能科技有限公司 | Based on encryption method of the aes algorithm to the 925MHz electronic vehicle license plate systems of UHF 920 |
| CN105957397A (en) * | 2016-06-24 | 2016-09-21 | 齐鲁工业大学 | Intelligent parking integrated system based on Internet of things |
| CN108694387B (en) * | 2018-05-15 | 2021-10-26 | 北京智芯原动科技有限公司 | False license plate filtering method and device |
| CN110085036A (en) * | 2019-05-30 | 2019-08-02 | 捷德（中国）信息科技有限公司 | A kind of deck recognition methods, license plate disassembly recognition methods and electronic license plate |
| CN112396859B (en) * | 2020-11-24 | 2022-04-01 | 深圳安途智行科技有限公司 | Automatic driving vehicle parking calling method and vehicle parking calling system based on mobile equipment |
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| CN1431639A (en) * | 2003-02-11 | 2003-07-23 | 上海奥达光电子科技有限公司 | Infrared electric vehicle license plate and its identifying system |
| US20040189493A1 (en) * | 2003-03-27 | 2004-09-30 | Estus Jay M. | RF electronic license plate and information system for vehicle tracking |
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2006
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|---|---|---|---|---|
| US20050071231A1 (en) * | 2001-07-10 | 2005-03-31 | American Express Travel Related Services Company, Inc. | System and method for securing rf transactions using a radio frequency identification device including a random number generator |
| CN1431639A (en) * | 2003-02-11 | 2003-07-23 | 上海奥达光电子科技有限公司 | Infrared electric vehicle license plate and its identifying system |
| US20040189493A1 (en) * | 2003-03-27 | 2004-09-30 | Estus Jay M. | RF electronic license plate and information system for vehicle tracking |
| WO2005086676A2 (en) * | 2004-03-10 | 2005-09-22 | American Express Travel Related Services Company, Inc. | System and method for securing rf transactions using a radio frequency identification device including a random number generator |
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| Title |
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| CN101021973A (en) | 2007-08-22 |
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