Electronic lock device, electronic lock system and unlocking method thereof

Abstract

The invention relates to an electronic lock system, comprising a lock body and a password generator. The password generator obtains reference time T used for calculating a temporary password according to password using conditions, and generates a code C of beginning and ending time of a password valid period; the password generator calculates the code C, the time T and seed information S with an algorithm 1 so as to obtain F; the C and the F are calculated by means of an algorithm 2, so that a temporary password P is obtained; when a casual user inputs the temporary password P on a lock body password input module, a lock body calculation module utilizes inverse operation of the algorithm 2 to obtain the C and the F; current time t is obtained from a lock body clock module; reference time T' for calculating the temporary password at present is obtained by analyzing according the C and the t; a lock body electronic module calculates the code C, the time T' and the seed information S with the algorithm 1 so as to obtain F'; the F is compared with the F', and unlocking is performed by a control module if the F is the same as the F'. After the electronic lock system is applied, the unlocking demand of the casual user can be met, and a door lock does not need networking; the electronic lock system is convenient to use, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of electronic locks, in particular to a convenient, safe and reliable electronic lock device, system and unlocking method that can meet the unlocking needs of temporary users. . Background technique [0002] Basically, the current electronic door locks can be set with a password. The password is stored in a non-volatile storage device in the lock body, hereinafter referred to as a fixed password; enter the password every time the lock is unlocked, and the input password is stored in the non-volatile storage. The passwords in the device are compared and unlocked when they match. This method is inconvenient in use, especially for casual users. If the user is not next to the lock and the temporary user needs to open the door lock, the user needs to inform the temporary user of the fixed password; after the temporary user finishes using it, the user generally needs to change the password in time, otherwise it ...

AI Technical Summary

Problems solved by technology

[0005] 1. The door lock is required to have a complete authorization solution. At present, most products use the door lock to be connected to the Internet, and the lock is controlled through the network. On the one hand, it increases the cost, and on the other hand, it also brings security risks

[0006] 2. Temporary users are required to use a mobile phone with APP installed, and the mobile phone needs to be connected to the Internet to receive authorization information. For users who cannot install the APP or have not installed the corresponding APP, and users whose network environment is not very good, this method is helpless up

[0008] 1. The password changes with the date or time. When generating the password, the combination lock manager enters the fixed password F and the date D to calculate the password, which means that the password is related to the date, and the password can be used at any time of the day on the same date. Password, the password of different days is dynamic; the user cannot set the time period, nor the number of times of use, and different passwords are required to unlock the lock on different days, which is very inconvenient to use

[0009] 2. The security is very poor, the password is only related to the fixed password F and date D, and has nothing to do with user information and lock information

If a temporary user obtains the temporary password P and the date is known, it is easy to cause the fixed password F to be cracked by collision

[0010] Most of this technology is only thinking of using a temporary password scheme to solve the problem of temporary users. As for convenience, economy, and especially potential safety hazards, it is basically not involved, which greatly reduces the commercial value of the product.

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