CN105139499A - Mobile phone door lock system based on asymmetric secret key and realization method thereof - Google Patents
Mobile phone door lock system based on asymmetric secret key and realization method thereof Download PDFInfo
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- CN105139499A CN105139499A CN201510565606.4A CN201510565606A CN105139499A CN 105139499 A CN105139499 A CN 105139499A CN 201510565606 A CN201510565606 A CN 201510565606A CN 105139499 A CN105139499 A CN 105139499A
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Abstract
The invention discloses a mobile phone door lock system based on an asymmetric secret key and a realization method thereof, and belongs to a mobile phone door lock. The system comprises an intelligent mobile phone, a door lock and a server; data transmission among the intelligent mobile phone, the door lock and the server is carried by network; the server is used for storing a mobile phone identification number blacklist, and encrypting door opening permission serial data after the verification is valid and sending the serial data to the mobile phone; the intelligent mobile phone is used for sending the door opening permission serial data of the mobile phone to the door lock, and the door opening authority serial data at least comprises a door lock ID, a mobile phone identification number, etc.; the encrypted permission serial data and black list verification and multiple encryption and decryption verifications are carried out between the mobile phone, the door lock and the server, thereby solving the technology problem that the prior mobile phone door lock product cannot withstand replay attack and the invalid unlocking risk is high, providing a complete permission distribution, authentication and cancel process, greatly improving safety performance of the mobile phone door lock product, and promoting the development of the mobile phone door lock industry.
Description
Technical field
The present invention relates to a kind of mobile phone door lock, in particular, the present invention relates generally to a kind of mobile phone door-locking system based on unsymmetrical key and its implementation.
Background technology
Current mobile phone door lock product is also considerably less, and inventor is to conversed analysis result display on the market, and their door opening process is roughly as follows: an enabling password shared by mobile phone and door lock, and during enabling, mobile phone sends this password to door lock, and door lock checking is errorless just opens the door.There is severe safety problem in this door opening process, cannot resist Replay Attack, as long as assailant monitors enabling password, then carrying out playback can open the door; Thus be necessary to study and this improvement the anti-theft feature of this kind of door lock product.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, a kind of mobile phone door-locking system based on unsymmetrical key and its implementation are provided, easily cracked by Replay Attack to expect to solve similar mobile phone door lock in prior art, cause illegally unblanking, theftproof performance exists the technical matterss such as potential safety hazard.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
One aspect of the present invention provides a kind of mobile phone door-locking system based on unsymmetrical key, described system comprises smart mobile phone, door lock and server, described smart mobile phone, between door lock and server, carry out data transmission by network, wherein: described server be used for memory mobile phone string blacklist, and checking legal after enabling permissions data is serially added close after be sent to smart mobile phone; Described smart mobile phone is used for the enabling permissions data string of the machine to send to door lock, at least comprises door lock ID, mobile phone string number in described enabling permissions data string; Described door lock is used for deciphering when button fly front permissions data string, and judge the mark ID whether comprising door lock in the serial data after deciphering, if judged result is no, then authentication failed, refusal is unblanked, otherwise whether the mobile phone string number then in access services device inquiry current data string is included in blacklist, if judged result is yes, then selects a random number to be sent to smart mobile phone; Otherwise then authentication failed, refusal is unblanked; Enciphered data also for being encrypted after the random number receiving door lock transmission, and is sent to door lock by described smart mobile phone; Described door lock is also decrypted enciphered data for the manner of decryption by matching with smart mobile phone, and judges whether the data after deciphering equal to be sent to the random number of smart mobile phone, if judged result is yes, then be proved to be successful, allow to unblank, on the contrary then authentication failed, and refusal is unblanked.
As preferably, further technical scheme is: described server is by privacy key encryption enabling permissions data string.
Further technical scheme is: be also provided with server public key in described door lock, and described door lock deciphers described enabling permissions data string by server public key.
Further technical scheme is: also comprise mobile phone PKI and privacy key in described enabling permissions data string; Mobile phone private key is also provided with in smart mobile phone; Described smart mobile phone is encrypted random number by mobile phone private key; The mobile phone public key decryptions enciphered data of described door lock by decrypting from enabling permissions data string.
Further technical scheme is: the mobile phone private key in described smart mobile phone is generated by server and mobile phone PKI simultaneously, and mobile phone private key is sent to smart mobile phone preservation, then mobile phone PKI is sent to smart mobile phone with enabling permissions data string.
The present invention provides a kind of implementation method based on unsymmetrical key mobile phone door-locking system on the other hand, and described method comprises the steps:
The enabling permissions data string of the machine is sent to door lock by steps A, smart mobile phone, at least comprises door lock ID, mobile phone string number in enabling permissions data string;
The deciphering of step B, door lock is when button fly front permissions data string, and judge the mark ID whether comprising door lock in the serial data after deciphering, if judged result is no, then authentication failed, refusal is unblanked, otherwise whether the mobile phone string number then in access services device inquiry current data string is included in the blacklist of server internal storage, if judged result is yes, then selects a random number to be sent to smart mobile phone; Otherwise then authentication failed, refusal is unblanked;
Step C, smart mobile phone are encrypted after the random number receiving door lock transmission, and enciphered data is sent to door lock;
Step D, door lock are decrypted enciphered data by the manner of decryption matched with smart mobile phone, and judge whether the data after deciphering equal to be sent to the random number of smart mobile phone, if judged result is yes, then be proved to be successful, allow to unblank, on the contrary then authentication failed, and refusal is unblanked.
As preferably, further technical scheme is: the enabling permissions data string in described steps A by server in the legal rear encrypting and transmitting of checking to smart mobile phone.
Further technical scheme is: server is by privacy key encryption enabling permissions data string.
Further technical scheme is: in described step B, door lock is by server public key deciphering enabling permissions data string; Mobile phone PKI and privacy key is also comprised in described enabling permissions data string; In described step C, smart mobile phone is encrypted random number by mobile phone private key; The mobile phone public key decryptions enciphered data of door lock by decrypting from enabling permissions data string in described step D.
Further technical scheme is: the mobile phone private key in described step C in smart mobile phone is generated by server and mobile phone PKI simultaneously, and mobile phone private key is sent to smart mobile phone preservation, then mobile phone PKI is sent to smart mobile phone with enabling permissions data string.Compared with prior art, one of beneficial effect of the present invention is: by be encrypted between smart mobile phone and door lock and server permissions data string and blacklist verification etc. repeatedly encryption and decryption verify, existing mobile phone door lock product can not only be solved and can not resist Replay Attack, illegally to unblank the technical matters had a big risk, additionally provide complete authority distribution, certification and cancel process, greatly can improve the security performance of mobile phone door lock product, thus promote the development of mobile phone door lock industry; A kind of mobile phone door-locking system framework based on unsymmetrical key provided by the present invention is simple simultaneously, and can install and use in all kinds of place, range of application is wide.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram for illustration of one embodiment of the invention;
Fig. 2 is for illustration of the checking process figure that opens the door in one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, one embodiment of the present of invention are a kind of mobile phone door-locking systems based on unsymmetrical key, and this system comprises smart mobile phone, door lock and server, described smart mobile phone, carry out data transmission by network between door lock and server, wherein:
Server be used for memory mobile phone string blacklist, and checking legal after enabling permissions data is serially added close after be sent to smart mobile phone;
Smart mobile phone is used for the enabling permissions data string of the machine to send to door lock, at least comprises door lock ID, mobile phone string number in described enabling permissions data string;
Door lock is used for deciphering when button fly front permissions data string, and judge the mark ID whether comprising door lock in the serial data after deciphering, if judged result is no, then authentication failed, refusal is unblanked, otherwise whether the mobile phone string number then in access services device inquiry current data string is included in blacklist, if judged result is yes, then selects a random number to be sent to smart mobile phone; Otherwise then authentication failed, refusal is unblanked;
Enciphered data also for being encrypted after the random number receiving door lock transmission, and is sent to door lock by smart mobile phone; Door lock is also decrypted enciphered data for the manner of decryption by matching with smart mobile phone, and judges whether the data after deciphering equal to be sent to the random number of smart mobile phone, if judged result is yes, then be proved to be successful, allow to unblank, on the contrary then authentication failed, and refusal is unblanked.
For promoting the security in said system use further, preferably, above-mentioned server is by privacy key encryption enabling permissions data string; And be also provided with server public key in door lock, described door lock deciphers described enabling permissions data string by server public key; Mobile phone PKI and privacy key is also comprised in above-mentioned enabling permissions data string; Mobile phone private key is also provided with in smart mobile phone; Described smart mobile phone is encrypted random number by mobile phone private key; The mobile phone public key decryptions enciphered data of above-mentioned door lock by decrypting from enabling permissions data string.Mobile phone private key in above-mentioned smart mobile phone is generated by server and mobile phone PKI simultaneously, and mobile phone private key is sent to smart mobile phone preservation, then mobile phone PKI is sent to smart mobile phone with enabling permissions data string.
Shown in composition graphs 2, an alternative embodiment of the invention is a kind of implementation method based on unsymmetrical key mobile phone door-locking system, it is characterized in that described method comprises the steps:
The enabling permissions data string of the machine is sent to door lock by step S1, smart mobile phone, at least comprises door lock ID, mobile phone string number in enabling permissions data string;
The deciphering of step S2, door lock is when button fly front permissions data string, and judge the mark ID whether comprising door lock in the serial data after deciphering, if judged result is no, then authentication failed, refusal is unblanked, otherwise whether the mobile phone string number then in access services device inquiry current data string is included in the blacklist of server internal storage, if judged result is yes, then selects a random number to be sent to smart mobile phone; Otherwise then authentication failed, refusal is unblanked;
Step S3, smart mobile phone are encrypted after the random number receiving door lock transmission, and enciphered data is sent to door lock;
Step S4, door lock are decrypted enciphered data by the manner of decryption matched with smart mobile phone, and judge whether the data after deciphering equal to be sent to the random number of smart mobile phone, if judged result is yes, then be proved to be successful, allow to unblank, on the contrary then authentication failed, and refusal is unblanked.
Similar with the above embodiments, for promoting the security in said system use further, preferably, by server, enabling permissions data string in above-mentioned steps S1 is verifying that legal rear encrypting and transmitting is to smart mobile phone, and above-mentioned server is by privacy key encryption enabling permissions data string; In above-mentioned steps S2, door lock is by server public key deciphering enabling permissions data string; Mobile phone PKI and privacy key is also comprised in described enabling permissions data string; In above-mentioned steps S3, smart mobile phone is encrypted random number by mobile phone private key; The mobile phone public key decryptions enciphered data of door lock by decrypting from enabling permissions data string in above-mentioned steps S4.Mobile phone private key in above-mentioned steps S3 in smart mobile phone is generated by server and mobile phone PKI simultaneously, and mobile phone private key is sent to smart mobile phone preservation, then mobile phone PKI is sent to smart mobile phone with enabling permissions data string.
As mentioned here above, based on embodiments of the invention, more detailed description is done to technical scheme of the present invention more below, understand the present invention faster to help those skilled in the art.Mobile phone door-locking system is made up of cell-phone customer terminal (being installed on the App program on smart mobile phone), door lock, background server three part.First cell-phone customer terminal needs to become validated user to server registration, then could obtain the enabling authority of certain to server application, enabling authority just can be utilized afterwards to go to open this door; Door lock has wifi or function of Bluetooth communication, and wait for that smart mobile phone sends the request of enabling, whether authentication intelligent mobile phone has enabling authority, if there is enabling, otherwise will not open the door; Background server is the system core, and responsible smart mobile phone registration logs in, work is cancelled in the distribution of enabling authority.The safety problem of mobile phone door-locking system is how defensive attack person forges authority, illegally opens the door.The present invention proposes the digital right management scheme of complete set, comprise distribution, certification and cancel three parts, effective defensive attack person can be done and illegally open the door.
The precondition that above-mentioned functions realizes is that server has a pair public private key pair (Kpri_server and Kpub_server), and server exclusively enjoys private key Kpri_serve, and all door locks all have the PKI Kpub_server of server.Cell-phone customer terminal is after server registration success, server can generate a pair public private key pair (Kpri_phone and Kpub_phone) for each smart mobile phone client, and sending to cell-phone customer terminal oneself to preserve private key Kpri_phone, PKI Kpub_phone is by server centered keeping.
Above-mentioned authority distribution refers to that background server is handed down to certain cell-phone customer terminal enabling authority.Detailed process is as follows: first, and cell-phone customer terminal is registered to background server, and background server is that each cell-phone customer terminal generates a public private key pair, sends to cell-phone customer terminal to preserve private key, and PKI is by server centered keeping; After succeeding in registration, cell-phone customer terminal just can to certain enabling authority of server request, server sends to cell phone intelligent enabling authority after checking request is legal, enabling authority is expressed as { ID_door, IMEI_phone, Kpub_phone}Kpri_server, namely the result that the ID of the private key opposite house of server oneself, mobile phone string number and mobile phone PKI are encrypted is utilized, wherein ID_door is the ID of door lock, IMEI_phone is mobile phone string number, Kpub_phone is mobile phone PKI, and Kpri_server is privacy key.
Above-mentioned purview certification refers to that the enabling authority of door lock to smart mobile phone carries out certification, and to determine whether to open the door, detailed process is divided into three steps to implement:
The first step, smart mobile phone is the enabling authority (i.e. { ID_door of oneself, IMEI_phone, Kpub_phone}Kpri_server) door lock is sent to, door lock utilizes this data acquisition of background server public key decryptions ID_door, IMEI_phone and Kpub_phone tri-values, then judge that whether ID_door is exactly oneself ID, do not have authority to open the door, if yes then enter second step if not this smart mobile phone of explanation;
Second step, the string number to background server inquiry IMEI_phone(mobile phone) whether in blacklist, if can not open the door, if do not entering the 3rd step;
3rd step, door lock selects a random number r to send to smart mobile phone, smart mobile phone uses oneself encrypted private key after receiving, and enciphered data is returned to door lock, the mobile phone PKI Kpub_phone that the door lock recycling first step decrypts deciphers return data, if decrypted result equals original random number r selected, open the door immediately, otherwise do not open the door.
Authority is cancelled and is referred to the enabling authority of certain smart mobile phone of System undoes to certain, such as user mobile phone is lost, and so just must cancel all enabling authorities of this smart mobile phone.Background server is that a blacklist safeguarded by door lock, wherein each correspondence mobile phone string number, if will delete the enabling authority of smart mobile phone A, so server only needs the string of mobile phone A number to add blacklist.
On the basis of scheme described in above-described embodiment, inventor also analyzes such scheme defence Replay Attack ability.Specific as follows: hypothesize attack person can monitor and record all Content of Communication of door opening process, that is assailant can monitor smart mobile phone in the first step of above-mentioned purview certification process and send to the enabling authority of door lock, and the r that in second step, door lock is replied, the r ' that in the 3rd step, smart mobile phone is replied.Afterwards, assailant initiates Replay Attack, first the enabling authority { ID_door listened to is sent above to door lock, IMEI_phone, Kpub_phone}Kpri_server, door lock utilizes server public key to decipher this data acquisition ID_door, IMEI_phone and Kpub_phone tri-value, ID_door is door lock ID necessarily, so door lock confirms IMEI_phone to server further, because IMEI_phone is other the legal smart mobile phone monitored, therefore server also can be replied not in blacklist certainly, so door lock can select a random number ra, and send to assailant, according to normal processes, assailant should use the encrypted private key ra of IMEI_phone after receiving ra, then encrypted result is returned to door lock.But because assailant is not IMEI_phone, therefore it does not have the private key of IMEI_phone, correct secret value can not be calculated, the r ' or other value that monitor can only be sent above, this value of Kpub_phone value deciphering of acquisition deciphered by such door lock before utilizing, certainly can not equal ra, therefore refuse to open the door, thus assailant cannot Replay Attack success.So whether assailant can enabling authority { ID_door, IMEI_phone, does Kpub_phone in Kpub_phone}Kpri_server replace with the PKI in a public private key pair oneself generated? obviously this is also impossible, because this enabling authority is privacy key encryption, assailant can not have the private key of server.Therefore, rights management techniques of the present invention effectively can resist the Replay Attack of assailant.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (10)
1. based on a mobile phone door-locking system for unsymmetrical key, it is characterized in that described system comprises smart mobile phone, door lock and server, described smart mobile phone, between door lock and server, carry out data transmission by network, wherein:
Described server be used for memory mobile phone string blacklist, and checking legal after enabling permissions data is serially added close after be sent to smart mobile phone;
Described smart mobile phone is used for the enabling permissions data string of the machine to send to door lock, at least comprises door lock ID, mobile phone string number in described enabling permissions data string;
Described door lock is used for deciphering when button fly front permissions data string, and judge the mark ID whether comprising door lock in the serial data after deciphering, if judged result is no, then authentication failed, refusal is unblanked, otherwise whether the mobile phone string number then in access services device inquiry current data string is included in blacklist, if judged result is yes, then selects a random number to be sent to smart mobile phone; Otherwise then authentication failed, refusal is unblanked;
Enciphered data also for being encrypted after the random number receiving door lock transmission, and is sent to door lock by described smart mobile phone;
Described door lock is also decrypted enciphered data for the manner of decryption by matching with smart mobile phone, and judges whether the data after deciphering equal to be sent to the random number of smart mobile phone, if judged result is yes, then be proved to be successful, allow to unblank, on the contrary then authentication failed, and refusal is unblanked.
2. the mobile phone door-locking system based on unsymmetrical key according to claim 1, is characterized in that: described server is by privacy key encryption enabling permissions data string.
3. the mobile phone door-locking system based on unsymmetrical key according to claim 1 and 2, is characterized in that: be also provided with server public key in described door lock, and described door lock deciphers described enabling permissions data string by server public key.
4. the mobile phone door-locking system based on unsymmetrical key according to claims 1 to 3 any one, is characterized in that: also comprise mobile phone PKI and privacy key in described enabling permissions data string; Mobile phone private key is also provided with in described smart mobile phone; Described smart mobile phone is encrypted random number by mobile phone private key; The mobile phone public key decryptions enciphered data of described door lock by decrypting from enabling permissions data string.
5. the mobile phone door-locking system based on unsymmetrical key according to claim 4, it is characterized in that: the mobile phone private key in described smart mobile phone is generated by server and mobile phone PKI simultaneously, and mobile phone private key is sent to smart mobile phone preservation, then mobile phone PKI is sent to smart mobile phone with enabling permissions data string.
6., based on an implementation method for unsymmetrical key mobile phone door-locking system, it is characterized in that described method comprises the steps:
The enabling permissions data string of the machine is sent to door lock by steps A, smart mobile phone, at least comprises door lock ID, mobile phone string number in enabling permissions data string;
The deciphering of step B, door lock is when button fly front permissions data string, and judge the mark ID whether comprising door lock in the serial data after deciphering, if judged result is no, then authentication failed, refusal is unblanked, otherwise whether the mobile phone string number then in access services device inquiry current data string is included in the blacklist of server internal storage, if judged result is yes, then selects a random number to be sent to smart mobile phone; Otherwise then authentication failed, refusal is unblanked;
Step C, smart mobile phone are encrypted after the random number receiving door lock transmission, and enciphered data is sent to door lock;
Step D, door lock are decrypted enciphered data by the manner of decryption matched with smart mobile phone, and judge whether the data after deciphering equal to be sent to the random number of smart mobile phone, if judged result is yes, then be proved to be successful, allow to unblank, on the contrary then authentication failed, and refusal is unblanked.
7. the implementation method based on unsymmetrical key mobile phone door-locking system according to claim 6, is characterized in that: by server, the enabling permissions data string in described steps A is verifying that legal rear encrypting and transmitting is to smart mobile phone.
8. the implementation method based on unsymmetrical key mobile phone door-locking system according to claim 7, is characterized in that: described server is by privacy key encryption enabling permissions data string.
9. the mobile phone door-locking system based on unsymmetrical key according to claim 6 to 8 any one, is characterized in that: in described step B, door lock is by server public key deciphering enabling permissions data string; Mobile phone PKI and privacy key is also comprised in described enabling permissions data string; In described step C, smart mobile phone is encrypted random number by mobile phone private key; The mobile phone public key decryptions enciphered data of door lock by decrypting from enabling permissions data string in described step D.
10. the mobile phone door-locking system based on unsymmetrical key according to claim 9, it is characterized in that: the mobile phone private key in described step C in smart mobile phone is generated by server and mobile phone PKI simultaneously, and mobile phone private key is sent to smart mobile phone preservation, then mobile phone PKI is sent to smart mobile phone with enabling permissions data string.
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| CN109714760A (en) * | 2019-01-18 | 2019-05-03 | 浙江科技学院 | A kind of right access control method suitable for smart machine under direct-connected communication environment |
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Application publication date: 20151209 |