CN105069864A - Door lock control secure communication scheme based on NFC (near field communication) function of smart phone - Google Patents
Door lock control secure communication scheme based on NFC (near field communication) function of smart phone Download PDFInfo
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Abstract
The invention relates to a door lock control secure communication scheme based on an NFC (near field communication) function of a smart phone. The door lock control secure communication scheme comprises two communication main bodies including a door lock module and a key module of a smart phone terminal, wherein the two communication main bodies communicate on the basis of the ISO (international standard organization)/IEC (international electrotechnical commission) 14443 protocol; a communication process is divided into two parts: firstly, the door lock module and the key module perform mutual authentication based on ISO 9798-2 three-round authentication protocol and determine that the opposite main body is legal, then the key module sends request content, the door lock module responds to the request content and feeds back information, and communication is ended finally. With adoption of the scheme, interactive commutation between a door lock and the smart terminal can be realized, the defect of failure of interactive commutation for a P2P (point to point) function of the NFC is overcome, and severe security defects in mutual authentication and replay attack resistance in the conventional smart phone and door lock control scheme are overcome.
Description
Technical field
The present invention relates to a kind of door lock based on smart mobile phone NFC function and control Secure Communication.
Background technology
Along with the maturation of NFC technique, increasing smart mobile phone starts to support this function.NFC technique incorporates ISO/IEC14443A/B and FeliCa REID (RFID) standard.The support card simulation of NFC technique (CardEmulation) pattern own, card reader (RFIDReader) pattern and point-to-point (P2P) communication pattern, function is very complete, but the realization of existing Android intelligent to NFC function is more limited, only achieve the AndroidBeam function of card reader pattern and point-to-point communication, snap gauge simulation models is only just introduced after Android4.4 version, and function singleness.
It is incomplete that these realize, and limits the range of application of smart mobile phone NFC function, and at present conventional application is confined to transmit brief information between the read-write of NFC electronic tag and mobile phone, such as business card, picture, network address etc., another common purposes is the auxiliary pairing realizing bluetooth.Meanwhile, the intelligent door lock system used in each hotel or Office Area now has and much all adopts contact type intelligent card as key, although provide certain convenience, but still needs user to carry smart card as key.
Due to the basic communication protocol of the completely compatible existing conventional contact type intelligent card of NFC technique, and mobile phone has been the essential items that people carry with people, therefore will have the key of smart mobile phone as intelligent door lock of NFC function, there is extraordinary application prospect.There is now the intelligent door lock of many support NFC functions, but the certification that the design of all these door locks is not all noticed or cannot be solved when smart mobile phone is communicated with door lock by NFC function and Communication Security Problem, therefore security is very low, the design of door lock itself is to ensure security, if the security of radio communication do not considered by the door lock of the support NFC function of design, the due security of door lock cannot be ensured at all.
These existing patents mostly avoid this major safety problems, crucial communication process is just simply mentioned and is sent unique identifier by NFC mobile phone to door lock, even in patent " a kind of gate control system based on NFC " (application number: CN201410664589), there is technical error, said in this patent " feature that NFC (near field communication (NFC)) has data double-way transmission, mutually certification, dynamic encryption and disposable key ".The feature of the certification mutually at all of the NFC technique of present stage, dynamic encryption and disposable key.
Existing patent and the critical defect of product are that the communication protocol that NFC smart mobile phone communicates with door lock just realizes simply by sending an identification number comprising unique identifier or password and so on from mobile phone to door lock.This unidirectional data transmission cannot realize the mutual authentication function of communicating pair, also cannot prevent the generation of Replay Attack.
Due to not certification mutually, so this door-locking system cannot prevent the appearance of illegal door lock or illegal mobile phone, the simplest attack condition is assailant can have NFC function mobile phone replacement door lock by use one, the unlock instruction of the legal mobile phone of direct acceptance, namely unique identifier, before just can resetting to door lock afterwards, the unique identifier that receives has opened the door.This attack implements very convenient, as long as assailant can touch the smart mobile phone for unblanking, and the corresponding Nokia all run on mobile phone, replace door lock near just easily obtaining unlock instruction for the mobile phone of unblanking by another NFC mobile phone, whole process can not more than 1 minute.
The producing cause of this safety problem is that existing communication scheme is unidirectional data transmission, and does not have the reciprocal process of mobile phone and door lock.Tracing it to its cause mainly, data cause to the other side because the specific implementation AndroidBeam technology of the point-to-point communication pattern of existing NFC technique is only supported once to send.Therefore, fundamentally solve safety issue if think, just can not use AndroidBeam technology.
Summary of the invention
Problem to be solved by this invention is previously mentioned NFC smart mobile phone non-interactive type when communicating with door lock, not certification mutually, the safety problem of Replay Attack can not be prevented, simultaneously extensibility, the promptness of communication and the replaceability of cryptographic algorithm of assurance function.
The technical scheme realizing above-mentioned purpose is as follows:
Door lock based on smart mobile phone NFC function controls Secure Communication, it is characterized in that: comprise two communication agent, be respectively door lock module and intelligent mobile phone terminal key module, two communication agent communicate on ISO/IEC14443 agreement, and wherein communication process is divided into two parts:
First door lock module and key module carry out the mutual certification based on ISO9798-2 three-wheel authentication protocol, mutual confirmation the other side main body is legal main body, then key module sends request content, and the content of door lock module to request carries out response and feedback information, finally terminates communication.
The secure communication protocols of mutual certification is adopted in the present invention, door lock adopts nfc card simulation model, intelligent mobile phone terminal adopts card reader pattern to carry out NFC communication, thus reach can the object of interactive type communication, it is the basis that whole invention can be set up, the present invention can realize the interactive type communication of door lock and intelligent terminal, overcomes during present stage NFC technique P2P pattern realizes the drawback cannot carrying out interactive type communication.
Accompanying drawing explanation
Fig. 1 is communication process schematic diagram of the present invention
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
There are two communication agent: door lock module LOCK and intelligent mobile phone terminal key module KEY in the present invention.Door lock module adopts the NFC chip of existing support card analog functuion, and works under snap gauge simulation models, simulate the smart card that uses ISO/IEC14443 communication protocol, and key module is at card reader MODE of operation.Two communication agent communicate on ISO/IEC14443 agreement.Communication process can be divided into two parts, first door lock module LOCK and key module KEY carries out the mutual certification based on ISO9798-2 three-wheel authentication protocol, mutual confirmation the other side main body is legal main body, then key module KEY sends request content, door lock module LOCK feeds back and responds, and terminates communication afterwards according to the result of feedback.Whole communication process uses the protection of AES encryption algorithm for encryption.The present invention does not lay down hard-and-fast rule to the NFC chip used in door lock, as long as support card analog functuion all can use.The present invention, to the not requirement of the cryptographic algorithm of communication process, can use other symmetric block cipher algorithms of non-aes algorithm to realize identical function.
Concrete communication steps is as follows:
(1) first key module KEY sends a beginning authentication request instruction REQ_BEGIN to door lock module LOCK, starts whole verification process;
(2) after door lock module LOCK receives and starts authentication request instruction, door lock module LOCK produces first random number, and the system key KS using itself and key module KEY to share carries out AES encryption to the first random number produced and sends to key module KEY;
(3) then the message of key module KEY to feedback is decrypted, and produce second random number and interim conversation key K T, use shared system key K S (" || " symbol represents splicing) that the second random number produced, decrypted result and interim conversation key K T are carried out to AES encryption and be transferred to door lock module LOCK;
(4) then door lock module LOCK is decrypted the message received and obtains decrypt, thus obtain interim conversation key K T and the second random number, and verify in decrypt whether comprise the first correct random number, if comprised, complete the certification to key module KEY, and the interim conversation key K T using deciphering to obtain carries out AES encryption and sends to key module KEY to the first random number and the second random number; If the decrypt that door lock module LOCK obtains comprises incorrect first random number, then stop communication;
(5) key module KEY is decrypted the message received and obtains decrypt, and whether verify identical with the message of upper step door lock module feedback, if the same complete the certification of opposite house lock module LOCK, whole mutual authentication process terminates;
(6) next actual request transmission is carried out, in ensuing communication, all use temporary key to be encrypted, key module KEY encryption sends the request command REQ (request of such as unblanking adds unblocking key) needed, and specific instructions form is that the request code of a byte adds relevant parameter.Door lock module LOCK judges whether to perform this request command (whether the unblocking key of such as unblanking to ask is correct) according to the request received and relevant parameter, and perform actual request according to judged result, then response also feedback information, concrete response format is that the response results code of a byte adds relevant information, and whole communication process terminates.
The beneficial effect that technical solution of the present invention is brought:
(1) the present invention can realize the interactive type communication of door lock and intelligent terminal.The present invention adopts door lock to carry out work under snap gauge simulation models, and intelligent terminal is operated in the setting under card reader pattern, overcomes the drawback cannot carrying out interactive type communication in the NFC function P2P pattern realization of present stage smart mobile phone.
(2) the present invention can realize the mutual certification of door lock and intelligent terminal key.The present invention is based on the shared system key KS of communicating pair to realize mutual authentication function.In the 4th step of communication, if it is identical that LOCK verifies that the information received produces with itself, then prove that Correspondent Node knows system key KS, therefore the legitimacy certification of LOCK to KEY is realized, if in like manner in the 5th step KEY to verify that the information that receives and itself produce identical, then prove that Correspondent Node knows system key KS, therefore the legitimacy certification of KEY to LOCK is realized, and owing to all including the random number of the other side in the random number that both sides send, ensure that the generation of the only Replay Attack in the anti-verification process of the freshness of communication, therefore the present invention can realize mutual certification.
(3) the present invention can stop the generation of Replay Attack.Communication process of the present invention all uses AES encryption algorithm to be encrypted, and the temporary key KT that uses of at every turn communicating is all not identical, so can stop the generation of Replay Attack.
(4) the present invention has good function expansibility, and request command uses a byte code, can have the request that 256 kinds different, and often kind of request all can carry relevant parameter.Convenient expanded function of adding except unblanking, such as can be designed with the interim unblocking key instruction of time restriction, corresponding time synchronized instruction and the expanded functions such as log read instruction of unblanking.
(5) the present invention communicates in time, certification speed is fast, the present invention considers the finiteness of the arithmetic speed of hardware resource, have employed symmetric encipherment algorithm authentication mode, do not use public-key cipher authentication mode, greatly accelerate the consuming time of cryptographic operation in verification process and communication process, through the actual actual demand testing full up sufficient door lock and control.
The cryptographic algorithm that the present invention uses is replaceable, and any symmetric block cipher algorithm can be used to replace, and whole verification process and the cryptographic algorithm used do not have correlativity, as long as symmetric block cipher algorithm can use.
These are only the preferred embodiment of the embodiment of the present invention; not in order to limit the embodiment of the present invention; within all spirit in the embodiment of the present invention and principle, any amendment done, equivalent replacement, improvement etc., all should be included in the protection domain of the embodiment of the present invention.
Claims (6)
1. the door lock based on smart mobile phone NFC function controls Secure Communication, it is characterized in that: comprise two communication agent, be respectively door lock module and intelligent mobile phone terminal key module, two communication agent communicate on ISO/IEC14443 agreement, and wherein communication process is divided into two parts:
First door lock module and key module carry out the mutual certification based on ISO9798-2 three-wheel authentication protocol, mutual confirmation the other side main body is legal main body, then key module sends request content, and the content of door lock module to request carries out response and feedback information, finally terminates communication.
2. the door lock based on smart mobile phone NFC function according to claim 1 controls Secure Communication, it is characterized in that: the concrete steps of communication process comprise:
First key module sends the instruction of a beginning authentication request to door lock module, starts whole verification process;
After door lock module receives and starts authentication request instruction, then door lock module produces first random number, and the system key KS using itself and key module to share is encrypted the first random number produced and sends to key module;
Then the message of key module to feedback is decrypted and obtains a decrypted result one, and produce second random number and interim conversation key K T, use shared system key K S be encrypted the second random number produced, interim conversation key K T and decrypted result one and be transferred to door lock module;
Then the message of door lock module to feedback is decrypted and obtains a decrypted result two, whether comprises the first correct random number, if comprise the first correct random number in checking decrypted result two
Then complete the certification to key module KEY, and use temporary key KT to encrypt the first random number and the second random number to send to key module KEY; If decrypted result two comprises the first random number of mistake, then stop communication;
The message of key module to feedback is decrypted and obtains a decrypted result three subsequently, and whether verify identical with the message of upper step door lock module feedback, if the same complete the certification of opposite house lock module, whole mutual authentication process terminates;
Next actual request transmission is carried out, in ensuing communication, all use temporary key to be encrypted, key module encryption sends the request command needed, door lock module judges whether to perform this request command according to the request received and relevant parameter, and perform actual request according to judged result, then response also feedback information, whole communication process terminates.
3. the door lock based on smart mobile phone NFC function according to claim 2 controls Secure Communication, it is characterized in that: door lock module adopts the NFC chip of support card analog functuion, and work is carried out under snap gauge simulation models, simulate the smart card that uses ISO/IEC14443 communication protocol;
Key module carries out work under card reader pattern.
4. the door lock based on smart mobile phone NFC function according to claim 2 controls Secure Communication, it is characterized in that: described communication process uses the protection of AES encryption algorithm for encryption.
5. the door lock based on smart mobile phone NFC function according to claim 2 controls Secure Communication, it is characterized in that: described communication process uses other symmetric block cipher algorithms of non-aes algorithm.
6. the door lock based on smart mobile phone NFC function according to claim 2 controls Secure Communication, it is characterized in that: the request command form that key module encryption sends needs is that the request code of a byte adds relevant parameter.
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Cited By (19)
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| CN106652136A (en) * | 2016-12-22 | 2017-05-10 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal-based access control management information processing method and device |
| CN106683245A (en) * | 2016-12-22 | 2017-05-17 | 贵州航天计量测试技术研究所 | NFC (Near Field Communication) mobile intelligent terminal security access control system and control method thereof |
| CN106846583A (en) * | 2017-02-07 | 2017-06-13 | 广东南方电信规划咨询设计院有限公司 | A kind of wireless intelligent access control system |
| CN106971441A (en) * | 2017-04-28 | 2017-07-21 | 深圳星普森信息技术有限公司 | A kind of method for unlocking, door lock, key and lockset |
| CN107610292A (en) * | 2017-09-15 | 2018-01-19 | 广州市雅天网络科技有限公司 | The method for unlocking of controllable distance intelligent door lock based on bluetooth |
| CN108122311A (en) * | 2017-11-30 | 2018-06-05 | 北京九五智驾信息技术股份有限公司 | Vehicle virtual key realization method and system |
| CN108171831A (en) * | 2017-12-22 | 2018-06-15 | 武汉瑞纳捷电子技术有限公司 | A kind of bidirectional safe authentication method based on NFC mobile phone and smart lock |
| CN108320356A (en) * | 2018-02-02 | 2018-07-24 | 陈旭 | Lock control method, apparatus and system |
| CN108830994A (en) * | 2018-06-23 | 2018-11-16 | 辽宁工程技术大学 | A kind of high security hotel check-in system based on cloud commercial affairs block chain |
| CN108989282A (en) * | 2018-06-06 | 2018-12-11 | 咕咚网络（北京）有限公司 | The connection method of door lock terminal and gateway in a kind of Wireless Networking door-locking system |
| CN109064606A (en) * | 2018-08-03 | 2018-12-21 | 广州邦讯信息系统有限公司 | Gate inhibition's task executing method, system, access control system and readable storage medium storing program for executing |
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| CN109448164A (en) * | 2018-09-07 | 2019-03-08 | 甘肃农业大学 | A kind of terminal, lock body, door-locking system and management method |
| CN109949461A (en) * | 2019-03-15 | 2019-06-28 | 北京深思数盾科技股份有限公司 | Method for unlocking and device |
| CN111063070A (en) * | 2019-12-26 | 2020-04-24 | 捷德（中国）信息科技有限公司 | Digital key sharing method, digital key verification method and digital key verification equipment |
| CN111137245A (en) * | 2019-12-17 | 2020-05-12 | 重庆邮电大学 | Opening and closing method for automobile door lock |
| CN111508114A (en) * | 2020-04-17 | 2020-08-07 | 上海钧正网络科技有限公司 | Bicycle unlocking method and device, storage medium and hub lock |
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| CN106683245A (en) * | 2016-12-22 | 2017-05-17 | 贵州航天计量测试技术研究所 | NFC (Near Field Communication) mobile intelligent terminal security access control system and control method thereof |
| CN106652136A (en) * | 2016-12-22 | 2017-05-10 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal-based access control management information processing method and device |
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| CN108989282A (en) * | 2018-06-06 | 2018-12-11 | 咕咚网络（北京）有限公司 | The connection method of door lock terminal and gateway in a kind of Wireless Networking door-locking system |
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| CN109448164A (en) * | 2018-09-07 | 2019-03-08 | 甘肃农业大学 | A kind of terminal, lock body, door-locking system and management method |
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| CN111137245A (en) * | 2019-12-17 | 2020-05-12 | 重庆邮电大学 | Opening and closing method for automobile door lock |
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| CN111508114A (en) * | 2020-04-17 | 2020-08-07 | 上海钧正网络科技有限公司 | Bicycle unlocking method and device, storage medium and hub lock |
| CN111508114B (en) * | 2020-04-17 | 2022-04-22 | 上海钧正网络科技有限公司 | Bicycle unlocking method and device, storage medium and hub lock |
| CN111526210A (en) * | 2020-05-06 | 2020-08-11 | 广东纬德信息科技股份有限公司 | Distribution network safety intelligent cabinet system, control method, medium and terminal equipment |
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Application publication date: 20151118 |