Coded lock system capable of unlocking in specific time period by using encrypted authorization data

Abstract

The invention provides a coded lock system capable of unlocking in the specific time period by using encrypted authorization data. A coded lock manager adopts a code P corresponding to a code F stored in a coded lock as a secret key through an encrypted authorization data generator to adopt a specific encryption algorithm (such as an asymmetrical encryption algorithm (AES) on specified authorization data in one or more time periods to generate encrypted authorization data S; a temporary user of the coded lock inputs the encrypted authorization data S into the coded lock under the specified authorization condition (such as specific date or time); a coded lock controller adopts the code F stored inside to decrypt the encrypted authorization data to acquire each authorization item (comprising time period or times); if the specified authorization condition meet the requirement of a certain authorization item (such as the operating time is in a certain authorization time period), unlocking is performed.

Description

Technical field [0001] The invention relates to a code lock system that can be unlocked in a specific time period using encrypted authorization data, and particularly relates to a controller of this type of code lock. Background technique [0002] At present, the existing electronic combination locks have two types of password generation: the first type is a fixed password that can be set, and the password is stored in a non-volatile memory. The password is entered every time the lock is unlocked, the entered password and When the password stored in the non-volatile memory is checked and consistent, the lock can be unlocked, and the value of the password in the non-volatile memory can be modified through the password setting, and the password is updated to enhance security. The second category is the use of electronic keys. Electronic keys can be electronic tags such as various contact or non-contact magnetic cards, IC cards, etc. The electronic tags record the password of the pa...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the patent for invention with the notification number CN102168509A proposes a "dynamic password lock system in which the password changes with the date", which uses a combination of date and time and a fixed password to generate a dynamic password through a one-way hash algorithm. to unlock the lock, but a dynamic password can only correspond to a specific date or time, and cannot be used to authorize users for any period of time, nor can it be used to authorize the number of uses, which is not very convenient to use

Images