CN204833402U - Two -dimensional code developments trick lock - Google Patents

Abstract

The utility model provides a two-dimensional code dynamic combination lock, which comprises an electronic combination lock function module, an OTP module is connected to the electronic combination lock function module, a two-dimensional code identification module and a two-dimensional code identification module are connected to the electronic combination lock function module. Algorithm function module. The utility model can realize unlocking by adding a two-dimensional code identification module to scan and decode the networkable or non-networkable terminal equipment that generates a two-dimensional code password, without manually inputting the password, which is fast and convenient. Moreover, the two-dimensional code, as the carrier of photoelectric data transmission, can safely and conveniently connect the offline electronic lock with the Internet, cloud computing, and Internet of Things technologies.

Description

QR code dynamic password lock

technical field

The utility model relates to a two-dimensional code dynamic password lock.

Background technique

At present, electronic locks have gradually become popular in the fields of safes and hotels, but with the rapid development of Internet, cloud computing, and Internet of Things technologies, many products that work offline and independently are facing the interconnection upgrade and transformation with the network and mobile smart devices. Wired network is facing the problem of equipment wiring transformation, while wireless network is facing the problem of power consumption, equipment synchronization and security access, and because the operation interface of the dynamic code lock is a numeric keypad, it is not suitable for dynamic code locks, smart phone terminals, data Larger data transmission between management system servers; payment application authentication for offline lock control (such as vending machine locks, etc.) cannot be realized.

Contents of the invention

The utility model provides a two-dimensional code dynamic password lock which can be unlocked offline and has high password security.

The technical scheme that the utility model adopts is:

The two-dimensional code dynamic combination lock includes an electronic combination lock function module, the electronic combination lock function module is connected with an OTP module, and it is characterized in that: the electronic combination lock function module is connected with a two-dimensional code identification module and an algorithm function module . The utility model can realize unlocking by adding a two-dimensional code identification module to scan and decode the networkable or non-networkable terminal equipment that generates a two-dimensional code password, without manually inputting the password, which is fast and convenient. Moreover, the two-dimensional code, as the carrier of photoelectric data transmission, can safely and conveniently connect the offline electronic lock with the Internet, cloud computing, and Internet of Things technologies.

Further, a communication interface module is connected to the functional module of the electronic combination lock. The two-dimensional code dynamic password lock communicates and interacts data with the outside world through the communication interface module, which can be interfaces such as USB, UART, I ² C, and SPI.

Further, the OTP module includes an RTC module and a seed key module. The RTC module (including: year, month, day, hour, minute) and the seed key module are used as password factors to generate password data one-way through hash algorithms (such as: SM3, MD5, SHA1, etc.), and then obtained through the truncation algorithm The final dynamic password.

The beneficial effects of the utility model: offline unlocking, high password security.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of connection in use of the utility model.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments, but the utility model is not limited to these specific embodiments. Those skilled in the art should realize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

With reference to Fig. 1, two-dimensional code dynamic combination lock comprises electronic combination lock function module 11, is connected with OTP module 14 on the described electronic combination lock function module 11, is connected with two-dimensional code identification module on the described electronic combination lock function module 11 12 and algorithm function module 13. The utility model can realize unlocking by adding a two-dimensional code identification module 12 to scan and decode the networkable or non-networkable terminal equipment that generates a two-dimensional code password, without manually inputting the password, which is fast and convenient. Moreover, the two-dimensional code, as the carrier of photoelectric data transmission, can safely and conveniently connect the offline electronic lock with the Internet, cloud computing, and Internet of Things technologies.

A communication interface module 15 is connected to the functional module 11 of the electronic combination lock in this embodiment. The two-dimensional code dynamic combination lock communicates and interacts data with the outside world through the communication interface module 15, which can be interfaces such as USB, UART, I ² C, and SPI.

The OTP module 14 in this embodiment includes an RTC module 141 and a seed key module 142 . The RTC module 141 (including: year, month, day, hour, minute) and the seed key module 142 are used as password factors to generate password data one-way through a hash algorithm (such as: SM3, MD5, SHA1, etc.), and then truncate algorithm to obtain the final dynamic password. The RTC module 141 is a real-time clock module, which is used to provide the clock factor for synchronizing the dynamic combination lock with the server. Currently, the most conventional RTC crystal oscillator on the market is a 20ppm 32.768KHz passive crystal oscillator, which can generally be guaranteed for 1 year through the calibration of the PPM value during production. The time deviation is within 5 minutes, so according to the actual situation, it is best to perform server synchronization on the real-time clock of the dynamic code lock every 1 year; the seed key module 142 is used for the one-to-one correspondence binding between the data management system server and many dynamic code locks , at the same time with the clock as one of the two factors generated by the dynamic password of the OTP module.

The use diagram of the utility model is shown in Figure 2, the two-dimensional code dynamic code 1 lock retains all the functions of the original electronic code lock, and adds a two-dimensional code identification module 12 to realize scanning the two-dimensional code displayed on the screen of the smart phone terminal 2 Identification and authentication: the smart phone terminal 2 is the user's application to the data management system server 3 for dynamic unlocking related password data through the APP, and generates a two-dimensional code to be displayed on the device screen. The terminal is not limited to smart phones, and can be any PAD, POS, smart wearable device with display, etc. that can be connected to the Internet or not; User identity information, etc.) for authentication, and feed back relevant information such as unlocking dynamic keys. At the same time, according to user application records, the usage frequency status of the dynamic password application object can be indirectly counted to analyze whether resources are idle. The specific unlocking process is as follows:

1. The user establishes an authentication connection with the data management system server 3 through the APP of the smartphone terminal 2, and synchronizes the system time at the same time, which can be based on Internet time;

2. The user reads the unique identification code of the current two-dimensional code dynamic password lock 1 and applies for the unlocking dynamic password through the APP of the smart phone terminal 2 and the data management system server 3;

3. The user combines the dynamic password encrypted data obtained by the smart phone terminal 2 with the current standard time to generate a two-dimensional code picture on the screen, and this part of the current standard time data in the two-dimensional code is updated every 10 seconds when displayed on the screen;

4. The two-dimensional code identification module 12 of the two-dimensional code dynamic password lock 1 scans the two-dimensional code picture on the terminal screen of the smart phone, generates the decoded data dynamic password encrypted data and the current standard time;

5. The core controller of the two-dimensional code dynamic password lock 1 decrypts the encrypted data of the dynamic password through the private key, obtains the function code, dynamic password, dynamic password generation time, payment amount, integrity verification data, and converts the function code, dynamic password , dynamic password generation time, and payment amount are checked by the one-way generated verification data and integrity verification data through the hash algorithm (such as: SM3, MD5, SHA1, etc.) synchronized with the data management system server. If the verification is passed, enter the next step , the verification and identification will prompt that the unlocking failed;

6. If the integrity verification data is verified, the core controller of the two-dimensional code dynamic code lock 1 will first recognize the function code. When it is judged to be a time calibration function and the dynamic code is within the valid setting time (the default is ±1 hour), then the dynamic password generation time is calibrated and set for the RTC module 141 of the two-dimensional code dynamic combination lock 1, and the effective setting is made within ±1 minute of the current standard time judgment; And within the effective setting time (default is ±5 minutes), the RTC module 141 of the two-dimensional code dynamic code lock 1 is calibrated and set at the current standard time, and the lock control and unlocking are controlled at the same time.

Claims (3)

1. Two-dimensional code dynamic combination lock, comprising electronic combination lock function module, described electronic combination lock function module is connected with OTP module, is characterized in that: described electronic combination lock function module is connected with two-dimensional code identification module and algorithm functional module. 2. A two-dimensional code dynamic combination lock according to claim 1, characterized in that: said electronic combination lock function module is connected with a communication interface module. 3. A two-dimensional code dynamic password lock as claimed in claim 1 or 2, characterized in that: the OTP module includes an RTC module and a seed key module.