CN111127710B - Intelligent lock safe off-line unlocking password generation method - Google Patents
Intelligent lock safe off-line unlocking password generation method Download PDFInfo
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- CN111127710B CN111127710B CN201911317218.9A CN201911317218A CN111127710B CN 111127710 B CN111127710 B CN 111127710B CN 201911317218 A CN201911317218 A CN 201911317218A CN 111127710 B CN111127710 B CN 111127710B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 4
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 claims description 3
- 230000002618 waking effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
Abstract
The invention discloses a method for generating a safe off-line unlocking password of an intelligent lock, which comprises the following steps: the intelligent lock generates a temporary password seed; the intelligent lock transmits the temporary password seed to the APP; the APP performs hash operation by combining the password seeds with the current time to obtain a hash information summary, and then performs unlocking digit remainder on the information summary to obtain an unlocking temporary password; the intelligent lock is opened after comparing the temporary password. According to the invention, the APP and the intelligent lock are connected in a near field communication mode, the APP and the intelligent lock exchange data in an asymmetric DH mode, meanwhile, a temporary encryption key is generated in a transmission process through an administrator password, the temporary password is calculated by self, the server does not store any sensitive information and calculate a door opening key, the server burden is reduced, the password use safety is improved, the intelligent lock and the APP do not need to be in long-time connection with WIFI, the power consumption of modules such as communication and the like is reduced, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of password unlocking, in particular to a method for generating a safe offline unlocking password of an intelligent lock.
Background
In the prior art, the intelligent lock unlocking method mainly comprises the following three methods:
1. and setting a fixed temporary password for the guest to use through a local menu.
2. Through the long connection of WIFI, the APP applies for the temporary unlocking password to the intelligent lock through the server, and therefore when the intelligent lock is used at every time, the APP is returned to the APP through the APP sending instruction and other information to the server, and the APP shares the unlocking password with the guest.
3. Intelligence lock and server usually keep the off-state, APP connection server when using applies for the password of unblanking temporarily, and the password of unblanking is returned for APP to the server, and connection server when the user intelligent lock end input password again sends the password for the server to verify or issue the comparison for the intelligent lock with interim password, verifies then to open the door through.
The above three methods have three problems respectively:
1. the password is set before each use, the use is inconvenient, and temporary password leakage can be involved to cause safety problems if the password is not reset.
2. The power consumption is high due to the fact that the WIFI and other communication modules are kept normally open through the WIFI long connection mode, the service time of a battery is shortened, and user experience is reduced.
3. Because the intelligent lock does not keep the connection state, when the user wakes up the lock, the connection time of the connection server is uncertain, the user experience is influenced by long verification time, the password generation algorithm is stored in the server, if the server is hijacked, the safety problem is easily caused, and meanwhile, if the number of the users is extremely large, the requirement on the computing capacity of the server is high, and the company cost is increased.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the intelligent lock safe off-line unlocking password generation method can guarantee the unlocking safety of the intelligent lock, has good use experience in the unlocking process, is very low in power consumption of unlocking equipment, and saves cost.
The technical scheme of the invention is as follows: a method for generating a safe offline unlocking password of an intelligent lock comprises the following steps:
s1, waking up the intelligent lock, and starting the same-network communication connection intelligent lock after detecting that the APP and the intelligent lock are in the same network;
s2, the intelligent lock generates a temporary password seed;
s3, the intelligent lock transmits the temporary password seed to the APP through point-to-point exchange;
s4, carrying out hash operation on the APP by using the password seeds and combining the current time to obtain a hash information abstract, and carrying out unlocking digit remainder on the information abstract to obtain an unlocking temporary password;
s5, inputting the temporary password to the intelligent lock;
and S6, the intelligent lock compares the temporary password and opens the door.
By adopting the technical scheme, in the method for generating the safe offline unlocking password of the intelligent lock, in the S1, the intelligent lock and the APP are in the same network through near field communication.
By adopting the above solutions, in the method for generating the intelligent lock safe offline unlocking password, in S2, the method further includes the following steps:
s201, inputting an administrator password in an APP;
s202, entering a password seed generation menu;
s203, the timer starts to time in microsecond units;
s204, exchanging information between the intelligent lock and the APP network;
s205, inputting the random number sent by the intelligent lock on the APP manually;
s206, stopping timing by the timer, reading and storing timer data T1;
s207, acquiring T1 by the intelligent lock, generating a 128-bit Random number by the local MCU, and reading a unique SN number of the local MCU;
and S208, the intelligent lock combines the obtained T1, SN and 128-bit Random number together to obtain a password seed P, wherein P is T1+ SN + Random.
By adopting the above schemes, in the method for generating the intelligent lock safe offline unlocking password, in S3, the intelligent lock and the APP perform point-to-point exchange of transmission parameters in an asymmetric DH manner.
By adopting the above solutions, in the method for generating the intelligent lock safe offline unlocking password, in S3, the method further includes the following steps:
s301, scanning the serial number of the intelligent lock by the APP;
s302, associating the APP identification with the intelligent lock serial number by the server;
s303, setting a WIFI SSID and a password;
s304, the intelligent lock is connected with the APP through the server;
s305, the intelligent lock sends 4-bit random numbers;
s306, inputting a 4-bit random number on the intelligent lock for verification;
s307, the intelligent lock sends an intranet IP to the APP;
s308, generating a seed key by using the management password;
s309, applying for a temporary password seed through intranet communication between the APP and the intelligent lock;
s310, the server encrypts the temporary password seed by using the secret key and sends the temporary password seed to the APP.
By adopting the above solutions, in the method for generating the intelligent lock safe offline unlocking password, in S4, the calculation formula of the unlocking temporary password is as follows: pUnlocking lock＝hash(P+TAt present)MOD10n。
By adopting the above solutions, in the method for generating the intelligent lock safe offline unlocking password, in S6, the method further includes the following steps:
s601, the intelligent lock detects whether the temporary password is a user password;
s602, in the S601, if the detection result is yes, directly performing a user password door opening process;
s603, in the S601, if the detection is negative, whether the input digit is correct is detected;
s604, in the S603, if the detection result is yes, calculating the time point needing to be verified, and if the detection result is no, re-inputting the temporary password;
s605, in the S604, after the time points needing to be verified are calculated, whether the time points are matched or not is calculated point by point;
s606, detecting whether the calculation result is matched with the input password;
and S607, if the detection result in the S606 is yes, opening the door by using the temporary password, otherwise, inputting the temporary password again, and repeating the steps from S601 to S607.
By adopting the above solutions, in the method for generating the intelligent lock security offline unlocking password, in S604, the time point is calculated as: according to the time counting step length T and the current time TAt presentAnd obtaining T from the temporary password validity time TOAN＝[TAt present]t-Nt, wherein [ TAt present]tFor the current time T, taking an integer of the time step T, N being
By adopting the technical scheme, the APP is connected with the intelligent lock in a near field communication mode, the APP and the intelligent lock exchange data in an asymmetric DH mode, meanwhile, a temporary encryption key is generated through an administrator password in the transmission process, the temporary password is calculated by self, the server does not store any sensitive information, the door opening key is not calculated, the server burden is reduced, the password use safety is improved, the intelligent lock and the APP do not need to be in long-time connection with each other, the power consumption of modules for communication and the like is reduced, and the cost is reduced.
Drawings
FIG. 1 is a schematic flow chart of the overall process of the present invention;
FIG. 2 is a diagram illustrating the detailed step S2 according to the present invention;
FIG. 3 is a diagram illustrating the detailed step S3 according to the present invention;
FIG. 4 is a diagram illustrating the detailed step S6 according to the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Like fig. 1, this embodiment provides an intelligent lock safety off-line password generation method of unblanking, utilizes local near field communication's mode to exchange interim password factor, reduces the communication risk, and the user gets into through the APP menu and generates interim password of unblanking and shares for guest or friend, and manual input password of unblanking is locked, and intelligent lock is opened the door through calculation contrast password of unblanking.
The method specifically comprises the following steps:
s1, waking up the intelligent lock, and starting the intelligent lock in communication connection with the same network after detecting that the APP and the intelligent lock are in the same network.
And S2, the intelligent lock generates a temporary password seed.
And S3, the intelligent lock transmits the temporary password seed to the APP through point-to-point exchange.
And S4, carrying out hash operation on the APP by using the password seeds and combining the current time to obtain a hash information abstract, and carrying out unlocking digit remainder on the information abstract to obtain the unlocking temporary password.
And S5, inputting the temporary password into the intelligent lock.
And S6, the intelligent lock compares the temporary password and opens the door.
Preferably, in S1, the smart lock and the APP communicate with each other through the near field communication. The high power consumption problem has been solved to the mode that utilizes near field communication, does not need the long connection of wiFi to cause the high-power consumption of communication, the live time of extension intelligence lock.
Preferably, as shown in fig. 2, in S2, the method further includes the following steps:
s201, inputting an administrator password in the APP.
S202, entering a password seed generation menu.
And S203, the timer starts to count time in microsecond units.
And S204, exchanging information between the intelligent lock and the APP network.
S205, the random number sent by the intelligent lock is manually input into the APP.
S206, the timer stops counting, and the timer data T1 is read and stored.
S207, an intelligent lock acquisition T1, a 128-bit Random number generated by the local MCU, and a unique SN number of the read local MCU.
And S208, the intelligent lock combines the obtained T1, SN and 128-bit Random number together to obtain a password seed P, wherein P is T1+ SN + Random.
In the steps, a temporary password seed is mainly generated for the intelligent lock, the password of an administrator is input to start timing in microseconds, the timing is stopped when the intelligent lock receives the random number which is input by the 4-bit key and is sent to the APP by the intelligent lock through the network, and the obtained timer value is combined with the unique SN number of the local MCU and the 128-bit true random number obtained by the MCU to obtain the password seed. Namely: t1 has more certain Random number characteristics due to the fact that parameters such as operation time, network delay and the like of each person are inconsistent, and in addition, the Random number generator is reliable under normal conditions, and the reliable Random characteristics of the password seed P are guaranteed
Preferably, in S3, the smart lock and the APP perform point-to-point exchange of transmission parameters in an asymmetric DH manner. As shown in fig. 3, the step S3 specifically includes the following steps:
s301, scanning the intelligent lock serial number by the APP.
S302, the server associates the APP identification with the intelligent lock serial number.
And S303, setting a WIFI SSID and a password.
S304, the intelligent lock is connected with the APP through the server.
S305, the intelligent lock sends a 4-bit random number.
S306, inputting 4-bit random number verification on the intelligent lock.
S307, the intelligent lock sends the intranet IP to the APP.
S308, generating a seed key by using the management password.
S309, the APP and the intelligent lock apply for the temporary password seed through intranet communication.
S310, the server encrypts the temporary password seed by using the secret key and sends the temporary password seed to the APP.
The password seed exchange process adopts a local point-to-point exchange strategy, and the safety of the seed parameters can be ensured due to the unpredictability of the password seed parameters and the adoption of an asymmetric DH mode for transmitting the parameters.
Preferably, in S4, the unlock temporary password calculation formula is: pUnlocking lock＝hash(P+TAt present)MOD10n. The temporary unlocking password can be shared by guests or friends for use on the door after being generated, the temporary unlocking password can be input on the intelligent lock, and the door can be opened after the intelligent lock is compared with the password correctly.
Preferably, as shown in fig. 4, in S6, the method specifically includes the following steps:
s601, the intelligent lock detects whether the temporary password is a user password.
And S602, if the detection result in the S601 is positive, directly performing a user password door opening process.
S603, in S601, if the detection result is no, it is detected whether the input digit is correct.
And S604, if the detection result is yes, calculating the time point needing to be verified, and if the detection result is no, re-inputting the temporary password.
In S605 and S604, after the time points required to be verified are calculated, whether the time points are matched is calculated point by point.
And S606, detecting whether the calculation result is matched with the input password.
And S607, if the detection result in the S606 is yes, opening the door by using the temporary password, otherwise, inputting the temporary password again, and repeating the steps from S601 to S607.
Preferably, in S604, the time point is calculated as: according to the time counting step length T and the current time TAt presentAnd obtaining T from the temporary password validity time TOAN＝[TAt present]t-Nt, wherein [ TAt present]tFor the current time T, taking an integer of the time step T, N being
In the process of comparing the temporary password by the intelligent lock, after the lock end receives the password input by the keyboard, whether the correct user password exists or not is checked, if the correct user password exists, a normal door opening process is executed, if the correct user password does not exist, whether the password number is a set number is checked, if the number is correct, a time point needing to be calculated is calculated according to the set password validity period and time precision, then the temporary password seed and the time point near the current time are taken out to be calculated together by adopting the same algorithm as the APP, if the temporary password seed and the time point are matched in the calculated time point, the password is valid, and if the temporary password is matched in the calculated time point, the user password is prompted to be expired or invalid.
Certainly, in the above-mentioned embodiment, password seed parameter is not limited to wifi local transmission, also includes and obtains seed parameter through modes such as bluetooth, NFC, wire rod directly link, and its APP customer end is not limited to the hash operation of seed parameter plus time yet, and it includes that the parameter such as password, data known at APP input intelligence lock and APP both sides generates the password of unblanking together.
By adopting the technical scheme, the APP is connected with the intelligent lock in a near field communication mode, the APP and the intelligent lock exchange data in an asymmetric DH mode, meanwhile, a temporary encryption key is generated through an administrator password in the transmission process, the temporary password is calculated by self, the server does not store any sensitive information, the door opening key is not calculated, the server burden is reduced, the password use safety is improved, the intelligent lock and the APP do not need to be in long-time connection with each other, the power consumption of modules for communication and the like is reduced, and the cost is reduced.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A method for generating a safe offline unlocking password of an intelligent lock is characterized by comprising the following steps:
s1, waking up the intelligent lock, and starting the same-network communication connection intelligent lock after detecting that the APP and the intelligent lock are in the same network;
s2, the intelligent lock generates a temporary password seed;
s3, the intelligent lock transmits the temporary password seed to the APP through point-to-point exchange;
s4, carrying out hash operation on the APP by using the password seeds and combining the current time to obtain a hash information abstract, and carrying out unlocking digit remainder on the information abstract to obtain an unlocking temporary password;
s5, inputting the temporary password to the intelligent lock;
s6, the intelligent lock compares the temporary passwords and opens the door;
in S2, the method further includes:
s201, inputting an administrator password in an APP;
s202, entering a password seed generation menu;
s203, the timer starts to time in microsecond units;
s204, exchanging information between the intelligent lock and the APP network;
s205, manually inputting a random number sent by the intelligent lock on the APP;
s206, stopping timing by the timer, reading and storing timer data T1;
s207, acquiring T1 by the intelligent lock, generating a 128-bit Random number by the local MCU, and reading a unique SN number of the local MCU;
s208, the intelligent lock combines the obtained T1, SN and 128-bit Random number together to obtain a password seed P, wherein P is T1+ SN + Random;
in the S3, the intelligent lock and the APP perform point-to-point exchange of transmission parameters in an asymmetric DH manner;
in S3, the method further includes:
s301, scanning the serial number of the intelligent lock by the APP;
s302, associating the APP identification with the intelligent lock serial number by the server;
s303, setting a WIFI SSID and a password;
s304, the intelligent lock is connected with the APP through the server;
s305, the intelligent lock sends 4-bit random numbers;
s306, inputting a 4-bit random number on the intelligent lock for verification;
s307, the intelligent lock sends an intranet IP to the APP;
s308, generating a seed key by using the management password;
s309, applying for a temporary password seed through intranet communication between the APP and the intelligent lock;
s310, the server encrypts the temporary password seed by using the secret key and sends the temporary password seed to the APP.
2. The method for generating the intelligent lock safe offline unlocking password according to claim 1, wherein in S1, the intelligent lock and the APP are in the same network through near field communication.
3. The method for generating the intelligent lock safe offline unlocking password according to claim 1, wherein in the step S4, the unlocking temporary password is calculated by the formula: pUnlocking lock＝hash(P+TAt present)MOD10n。
4. The method for generating the intelligent lock safe offline unlocking password according to claim 3, wherein in the step S6, the method further comprises the following steps:
s601, the intelligent lock detects whether the temporary password is a user password;
s602, in the S601, if the detection result is yes, directly performing a user password door opening process;
s603, in the S601, if the detection is negative, whether the input digit is correct is detected;
s604, in the S603, if the detection result is yes, calculating the time point needing to be verified, and if the detection result is no, re-inputting the temporary password;
s605, in the S604, after the time points needing to be verified are calculated, whether the time points are matched or not is calculated point by point;
s606, detecting whether the calculation result is matched with the input password;
and S607, if the detection result in the S606 is yes, opening the door by using the temporary password, otherwise, inputting the temporary password again, and repeating the steps from S601 to S607.
5. The method for generating the intelligent lock safe offline unlocking password according to claim 4, wherein in the step S604, the time point is calculated as: according to the time counting step length T and the current time TAt presentAnd obtaining T from the temporary password validity time TOAN＝[TAt present]t-Nt, wherein [ TAt present]tFor the current time T, taking an integer of the time step T, N being
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| CN112884947A (en) * | 2021-01-12 | 2021-06-01 | 深圳讯声智控科技有限公司 | Offline remote electronic door lock control method and system |
| CN114038095B (en) * | 2021-11-08 | 2024-01-05 | 东屋世安物联科技(江苏)股份有限公司 | Emergency code unlocking method and system |
| CN115410296A (en) * | 2022-07-20 | 2022-11-29 | 国网浙江省电力有限公司丽水供电公司 | Safe off-line intelligent lock based on two-dimension code and short message transmission key and unlocking method |
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| US9454648B1 (en) * | 2011-12-23 | 2016-09-27 | Emc Corporation | Distributing token records in a market environment |
| US11381554B2 (en) * | 2016-05-24 | 2022-07-05 | Feitian Technologies Co., Ltd. | NFC dynamic token with a seed key in said token |
| CN107770126A (en) * | 2016-08-16 | 2018-03-06 | 国民技术股份有限公司 | Personal identification method, system and dynamic token, mobile terminal, gateway device |
| CN106452767A (en) * | 2016-12-20 | 2017-02-22 | 广东南方信息安全产业基地有限公司 | Identity authentication public key management system based access authentication method |
| CN107798759A (en) * | 2017-11-20 | 2018-03-13 | 美的智慧家居科技有限公司 | Door lock door opening method, door lock and computer-readable recording medium |
| CN107989514A (en) * | 2018-01-02 | 2018-05-04 | 宁波耀龙软件科技有限公司 | There is the safety box of dynamic password |
| CN108460262B (en) * | 2018-01-08 | 2019-11-05 | 平安科技（深圳）有限公司 | Cipher management method, device, terminal device and storage medium |
| CN108921980A (en) * | 2018-05-03 | 2018-11-30 | 深圳市简工智能科技有限公司 | Offline method for unlocking, mobile terminal and the storage medium of lockset |
| CN109410396B (en) * | 2018-10-14 | 2021-01-01 | 浙江鸿利锁业有限公司 | Intelligent lock data encryption transmission method and leasing equipment applying same |
| CN109543423B (en) * | 2018-11-05 | 2021-07-23 | 上海新时达电气股份有限公司 | Control panel encryption and decryption method, terminal device and computer readable storage medium |
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