Password management method for intelligent lock

Abstract

The invention relates to a password management method. Passwords are generated by computing seeds and a time reference through a password generation algorithm; a server records an effective time period of each password; the password management method comprises a password verification step; the password verification step comprises judgment within the effective time period, if an intelligent lock locally contains password synchronization information, whether the input password is within the effective time period or not is judged according to effective time period information of the password synchronization information; and if the intelligent lock does not locally contain the password synchronization information, whether the input password is within the effective time period or not is judged according to a preset treaty rule. According to the password management method, on one hand, excessive dependence on a network is avoided, and on the other hand, the server cannot directly modify the password or set the password. The potential safety hazard is avoided; password management is safe, reliable and flexible in use, and the dependence on a wireless network is reduced.

Description

technical field [0001] The present invention directly relates to a password management method, in particular to an intelligent lock password management method which is safe, reliable, convenient in management, flexible in use, and less dependent on wireless networks. Background technique [0002] The existing smart lock password management methods mainly include the following: [0003] 1. Preset the password directly in the lock, which is the most commonly used method in traditional combination locks, that is, if you want to set the password of the combination lock to "1234", then you need to preset the password "1234" in some way In the combination lock, in normal use, the user enters "1234", once the combination lock matches the entered password and the pre-stored password, it means that the password access is successful. [0004] This method is the simplest, but it has the most limitations. Every time you change the password, you need to go to the password lock to change...

AI Technical Summary

Problems solved by technology

[0011] This method has the following defects: defect 1, this method is very simple and intuitive, but the problem is that the cloud server can directly set and modify the password for the smart lock, once it is hacked or maliciously operated by an insider, all Smart locks are set to a unified password, such as setting the passwords of all locks in a community or system to 1234, which will lead to systemic risks

Defect 2: If the home gateway or home router fails, or the signal quality of the wireless network is not good, during the process of distributing the password, the password in password route 1 will not be delivered, and the distributed password will not be able to open the door. lock out tenants

[0012] The reasons for the above problems are as follows: First, the participation of the home gateway is required in the process of sending the password. Therefore, once the home gateway fails or the wireless network fails, the function will inevitably be affected. Failure to authorize will result in locking the authorized person at the door. Second, the server not only controls a large number of smart locks, but also can directly set passwords for the locks, which poses a systemic security risk

[0013] 3. An offline password that does not depend on the network. It calculates the relevant secret code according to the internal algorithm and synchronized parameters, but there are still three defects. Most of the offline passwords now have not solved this defect. First, the password sent out It cannot be canceled; secondly, the valid time period of the password is not flexible, for example, it can only support a few days or more than ten days, if the valid time period becomes longer, the number of digits of the password needs to be longer, but the number of password digits is too long, such as More than 10, the user is inconvenient

Third, once the password is distributed, the validity period of the password cannot be changed

If the user needs to renew the lease, it will result in a password change, which will cause inconvenience to the user

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