CN102081812A - Automobile entrance guard control system and equipment - Google Patents
Automobile entrance guard control system and equipment Download PDFInfo
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- CN102081812A CN102081812A CN2010105735970A CN201010573597A CN102081812A CN 102081812 A CN102081812 A CN 102081812A CN 2010105735970 A CN2010105735970 A CN 2010105735970A CN 201010573597 A CN201010573597 A CN 201010573597A CN 102081812 A CN102081812 A CN 102081812A
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Abstract
The invention provides an automobile entrance guard control system and equipment. The system provided by the invention comprises a portable response card and a host arranged in an automobile, wherein the response card comprises a symmetric grouping encryption module for encrypting a command plaintext used by the entrance guard of the automobile into a command ciphertext through a symmetric grouping encryption algorithm (AES-CMA), and an RF (Radio Frequency) emitting module connected with the symmetric grouping encryption module and used for sending the command ciphertext to the host in a wireless radio frequency mode; the host comprises an RF receiving module for receiving the command ciphertext sent by the RF emitting module, a decoding module connected to the RF receiving module, and a driving module connected to the decoding module; the decoding module is used for decoding the received command ciphertext; and the driving module is used for driving an actuating component to disable or enable the anti-theft state of automobile doors. The automobile entrance guard control system provided by the invention enhances the anti-theft performance of the automobile and is safe, reliable and easy to realize.
Description
[technical field]
The present invention relates to the security protection technology field of vehicle, especially relate to a kind of automobile access control system and equipment.
[background technology]
Nowadays, raising along with the living standard quality, automobile becomes the walking-replacing tool of increasing people's trip gradually, automobile industry has also obtained significant progress, yet along with increasing of POV, the also corresponding increase of incident that automobile is stolen, the safe antitheft performance of automobile are undoubtedly the part that each user quite pays close attention to.
Traditional control system that is used for the automobile gate inhibition mainly adopts the regular coding integrated circuit or is lower than the special chip of 64 algorithms, but because the information code length that sends or receive of this type of codec chip is limited, so this information be easier to by catch aloft that electric wave code word and scanning follows the tracks of etc. system crack, security is relatively poor, cause automobile stolen easily, thereby bring massive losses and cause the instability of society to the car owner.
[summary of the invention]
The technical problem to be solved in the present invention is, the defective that password easily is cracked, security performance is relatively poor at the automobile gate inhibition of prior art provides a kind of anti-automobile access control system and equipment that ability is strong, security performance is high that cracks.
In order to solve the problems of the technologies described above, the invention provides a kind of automobile access control system, comprise the transponder card of carrying and be located at the main frame of automotive interior that described transponder card comprises:
Symmetry block encryption module is used for becoming the instruction ciphertext to reach by symmetrical block encryption algorithm AES-CMAC to the used instruction plain text encryption of automobile gate inhibition
Be connected in the RF transmitter module of described symmetrical block encryption module, be used for described instruction ciphertext is sent to main frame with wireless radio frequency mode;
Described main frame comprises:
The RF receiver module is used to receive the instruction ciphertext that described RF transmitter module sends;
Be connected in the decoder module of described RF receiver module, be used for to the instruction ciphertext of described reception decode and
Be connected in the driver module of described decoder module, be used to drive execution unit and remove or opening automobile car door anti-theft state.
Further, in above-mentioned automobile access control system, described transponder card comprises that also one is used for the button of input action instruction.
Further, in above-mentioned automobile access control system, described transponder card comprises that also one is used for the button of input action instruction.
Further, in above-mentioned automobile access control system, described symmetrical block encryption module further comprises:
The Data Update submodule is used in the instruction of the button input action by described transponder card, upgrade key sequence number and cycle rolling code and
Be connected in the encryption submodule of described Data Update submodule, be used for that the AES-CMAC algorithm for encryption is expressly carried out in instruction and handle.
Further, in above-mentioned automobile access control system, encrypting module and RF transmitter module are embedded in the singlechip chip of integrated RF emission function.
Further, prohibit in the control system at above-mentioned gas car door, described single-chip microcomputer model is ATA5774.
Further, in above-mentioned automobile access control system, described RF transmitter module sends the 433Mhz of the frequency employing UHF wave band of carrier wave.
Further, in above-mentioned automobile access control system, described decoder module further comprises:
Matched sub-block, be used for to the instruction ciphertext that receives carry out key sequence number and the cycle rolling code mates and
Be connected in the decoding processing submodule of described matched sub-block, be used for the instruction ciphertext of coupling is carried out the decoding of AES-CMAC algorithm.
Further, in above-mentioned automobile access control system, described RF receiver module, decoding process module and driver module are embedded in the single-chip microcomputer of integrated RF emission function.
Further, in above-mentioned automobile access control system, described single-chip microcomputer model is ATA5724.
The present invention also provides a kind of automobile gate inhibition opertaing device, and described equipment comprises above-mentioned automobile access control system.
Automobile access control system of the present invention and equipment adopt symmetrical block encryption algorithm AES-CMAC that transmission signals is encrypted, it has confusion and the diffusivity that key adds layer and improves automobile gate inhibition's anti-linear cryptanalysis and resisting differential analysis ability, improved the theftproof performance of automobile, and safe and reliable being easy to realized.
[description of drawings]
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of automobile access control system of the present invention preferred embodiment.
[embodiment]
For content of the present invention is described better, technical scheme of the present invention is further described below in conjunction with preferred embodiment.
See also Fig. 1, Fig. 1 is the structural representation of automobile access control system of the present invention preferred embodiment.The automobile access control system of present embodiment comprises transponder card of carrying 10 and the main frame 20 of being located at automotive interior.Described transponder card 10 also comprises a button, but by pressing this button input action instruction, makes transponder card 10 send wireless control signal, removes or opening automobile car door anti-theft state with main control system 20.
Described transponder card 10 comprises a symmetrical block encryption module 12 and connected RF transmitter module 14, described symmetrical block encryption module 12 is used for by symmetrical block encryption algorithm AES-CMAC the used instruction plain text encryption of automobile gate inhibition being become the instruction ciphertext, and described RF transmitter module 14 is used for described instruction ciphertext is sent to main frame 20 with wireless radio frequency mode.
Wherein, symmetry block encryption algorithm AES-CMAC (Advanced Encryption Standard-based on the message authentication code of password), confusion and the diffusivity of utilizing the aes algorithm key to add layer improve automobile gate inhibition's anti-linear cryptanalysis and resisting differential analysis ability, thereby significantly improve the theftproof performance of automobile.Wherein, aes algorithm is the Rijndael integrated data cryptographic algorithm that Belgian cryptographist Joan DaeMen and VinCent RijMen propose, and reorganization forms AES (Advanced Encryption Standard, Advanced Encryption Standard) in May, 2002.
Further, described symmetrical block encryption module 12 specifically comprises: Data Update submodule 122 and connected encryption submodule 124, described Data Update submodule 122 are used for upgrading key sequence number and cycle rolling code in the instruction of the button input action by transponder card 10; Described encryption submodule 124 is used for that the AES-CMAC algorithm for encryption is expressly carried out in instruction and handles.
Described symmetrical block encryption module 12 and RF transmitter module 14 are embedded in the single-chip microcomputer of integrated RF emission function, the ATA5774 that specifically can be atmel corp's development and produce; Send the 433Mhz ASK pattern that carrier frequency adopts the UHF wave band, the ATA5774 single-chip microcomputer of atmel corp is the chip of an integrated ATtiny44V single-chip microcomputer and UHF PLL radio frequency sending module.This single-chip microcomputer is by reading the KEY value among the EEPROM, will with instruction expressly calculate the instruction ciphertext by AES-CMAC with KEY; Again described instruction ciphertext is sent with serial communication with the form of Manchester coding by single-chip microcomputer and posted device; Serial communication is transferred to the one-chip machine port that is connected with RF transmitter module 14 with data with serial mode, and described RF transmitter module 14 will instruct ciphertext to send with RF-wise by the level of modulating this port and sending here.
Described main frame 20 comprises a RF receiver module 22, be connected in the decoder module 24 of RF receiver module 22 and be connected in the driver module 26 of decoder module 24.Described RF receiver module 22 is used to receive the instruction ciphertext that RF transmitter module 14 sends; Described decoder module 24 is used for the instruction ciphertext of described reception is decoded; Described driver module 26 is used to drive execution unit to be removed or opening automobile car door anti-theft state.
Further, described decoder module 24 comprises matched sub-block 242 and connected decoding processing submodule 244.Described matched sub-block 242 is used for the instruction ciphertext that receives is carried out key sequence number and the cycle rolling code mates; Described decoding processing is used for the instruction ciphertext of coupling is carried out the decoding of AESS-MAC algorithm in module 244.
RF receiver module 22, decoding process module 24 and driver module 26 are embedded in the single-chip microcomputer of integrated RF emission function, specifically can be the ATA5724 radiofrequency receiving chip that atmel corp produces; ATA5724 is the radiofrequency receiving chip of integrated LC-VCO and PLL Loop Filter, and it can reach the sensitivity of 113dbm under the ASK pattern, and its bandwidth can reach 300K; The instruction ciphertext receives with the Manchester coding form and send and decoding process module 24 decodings.
In the present embodiment, the described automobile access control system course of work is as follows:
When the user need pin the automobile gate inhibition, at first by pressing the button input action instruction of transponder card 10, the Data Update submodule 122 of symmetrical block encryption module 12 will upgrade key sequence number and cycle rolling code in the described transponder card 10, described encryption submodule 124 will expressly carry out the AES-CMAC algorithm for encryption and handle including the instruction of upgrading back key sequence number and cycle rolling code, obtain instructing ciphertext, after described instruction expressly adds key sequence number and cycle rolling code, the different radiofrequency signals that key sent is inequality, be that the each message that sends of key is all different, and receiving end can only with the key of identification some, receiving end does not process for the message information of having handled, can not extrapolate the message information that maybe will send in the process of transmitting of back by the message that has sent out, so prevented to crack key, improved the performance of automobile burglar by intercepting and capturing radio-frequency information; Following described instruction ciphertext send with serial communication with the form of Manchester coding by single-chip microcomputer and posts device, described serial communication is transferred to the one-chip machine port that is connected with RF transmitter module 14 with data with serial mode, and described RF transmitter module 14 will instruct ciphertext to send with RF-wise by the level of modulating this port and sending here.
After described main frame 20 receives the instruction ciphertext of above-mentioned transmission by its decoder module 24, the matched sub-block 242 of described decoder module 24 will be carried out key sequence number and the cycle rolling code mates to the instruction ciphertext that receives, if the match is successful, then described decoding processing submodule 244 is used for the instruction ciphertext of coupling is carried out the decoding of ASE-CMAC algorithm, obtain the instruction plaintext and send to driver module 26, described driver module 26 will expressly drive execution unit by the instruction after the success of decoding and pin automobile gate inhibition, i.e. opening automobile car door anti-theft state.
In like manner, when the user need remove the automobile gate inhibition, the user also was by transponder card 10 emission wireless signals, comes main control system 20 to adopt and removes the automobile gate inhibition, promptly removes the arrangements for automotive doors anti-theft state.
In addition, the present invention also provides a kind of equipment that comprises above-mentioned automobile access control system.
Automobile access control system of the present invention and equipment are by adopting AES-CMAC symmetry block encryption algorithm, confusion and the diffusivity of utilizing the aes algorithm key to add layer improve automobile gate inhibition's anti-linear cryptanalysis and resisting differential analysis ability, prevented from effectively illegal seizure and scanning are followed the tracks of and cracked key, improved the theftproof performance of automobile, and safe and reliable being easy to realized.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to guarantor of the present invention and expand scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. automobile access control system comprises the transponder card of carrying and is located at the main frame of automotive interior, it is characterized in that described transponder card comprises:
Symmetry block encryption module is used for becoming the instruction ciphertext to reach by symmetrical block encryption algorithm AES-CMAC to the used instruction plain text encryption of automobile gate inhibition
Be connected in the RF transmitter module of described symmetrical block encryption module, be used for described instruction ciphertext is sent to main frame with wireless radio frequency mode;
Described main frame comprises:
The RF receiver module is used to receive the instruction ciphertext that described RF transmitter module sends;
Be connected in the decoder module of described RF receiver module, be used for to the instruction ciphertext of described reception decode and
Be connected in the driver module of described decoder module, be used to drive execution unit and remove or opening automobile car door anti-theft state.
2. automobile access control system according to claim 1 is characterized in that: described transponder card also comprise one be used for input action instruction by strong.
3. automobile access control system according to claim 2 is characterized in that: described symmetrical block encryption module further comprises:
The Data Update submodule is used in the instruction of the button input action by described transponder card, upgrade key sequence number and cycle rolling code and
Be connected in the encryption submodule of described Data Update submodule, be used for that the AES-CMAC algorithm for encryption is expressly carried out in instruction and handle.
4. automobile access control system according to claim 1 is characterized in that: described symmetrical block encryption module and RF transmitter module are embedded in the singlechip chip of integrated RF emission function.
5. automobile access control system according to claim 4 is characterized in that: described single-chip microcomputer model is ATA5774.
6. automobile access control system according to claim 5 is characterized in that: described RF transmitter module sends the 433Mhz of the frequency employing UHF wave band of carrier wave.
7. automobile access control system according to claim 1 is characterized in that: described decoder module further comprises:
Matched sub-block, be used for to the instruction ciphertext that receives carry out key sequence number and the cycle rolling code mates and
Be connected in the decoding processing submodule of described matched sub-block, be used for the instruction ciphertext of coupling is carried out the decoding of AES-CMAC algorithm.
8. automobile access control system according to claim 1 is characterized in that: described RF receiver module, decoding process module and driver module are embedded in the single-chip microcomputer of integrated RF emission function.
9. automobile access control system according to claim 7 is characterized in that: described single-chip microcomputer model is ATA5724.
10. an automobile gate inhibition opertaing device is characterized in that, described equipment comprises each described automobile access control system as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105735970A CN102081812A (en) | 2010-12-03 | 2010-12-03 | Automobile entrance guard control system and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105735970A CN102081812A (en) | 2010-12-03 | 2010-12-03 | Automobile entrance guard control system and equipment |
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| CN102081812A true CN102081812A (en) | 2011-06-01 |
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| CN2010105735970A Pending CN102081812A (en) | 2010-12-03 | 2010-12-03 | Automobile entrance guard control system and equipment |
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| CN102682506A (en) * | 2012-05-25 | 2012-09-19 | 北京华大信安科技有限公司 | Intelligent Bluetooth door access control method and device based on symmetric cryptographic technique |
| CN103693011A (en) * | 2013-12-16 | 2014-04-02 | 中山菲柯特电子电器有限公司 | Anti-decoding vehicle rolling code burglar alarm |
| CN106373367A (en) * | 2016-10-27 | 2017-02-01 | 武汉奥泽电子有限公司 | Low-power-consumption automobile RKE remote controller and method for lowering power consumption |
| CN107662580A (en) * | 2016-07-29 | 2018-02-06 | 恩智浦有限公司 | Pattern detects |
| US10137860B2 (en) | 2016-11-17 | 2018-11-27 | Ford Global Technologies, Llc | Remote keyless entry message authentication |
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| US20070279184A1 (en) * | 2006-05-22 | 2007-12-06 | Siemens Vdo Automotive Corporation | Method Of Operating Multiple Vehicles Using Any Transmitter From A Programmed Group |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102682506A (en) * | 2012-05-25 | 2012-09-19 | 北京华大信安科技有限公司 | Intelligent Bluetooth door access control method and device based on symmetric cryptographic technique |
| CN102682506B (en) * | 2012-05-25 | 2015-07-08 | 北京华大信安科技有限公司 | Intelligent Bluetooth door access control method and device based on symmetric cryptographic technique |
| CN103693011A (en) * | 2013-12-16 | 2014-04-02 | 中山菲柯特电子电器有限公司 | Anti-decoding vehicle rolling code burglar alarm |
| CN107662580A (en) * | 2016-07-29 | 2018-02-06 | 恩智浦有限公司 | Pattern detects |
| CN107662580B (en) * | 2016-07-29 | 2021-12-03 | 恩智浦有限公司 | Pattern detection |
| CN106373367A (en) * | 2016-10-27 | 2017-02-01 | 武汉奥泽电子有限公司 | Low-power-consumption automobile RKE remote controller and method for lowering power consumption |
| US10137860B2 (en) | 2016-11-17 | 2018-11-27 | Ford Global Technologies, Llc | Remote keyless entry message authentication |
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Application publication date: 20110601 |