Dynamic electronic coded lock system and authentication method thereof

Abstract

The invention relates to a dynamic electronic coded lock system and an authentication method thereof. The system is composed of an electronic lock (1) and a plurality of password tokens (2) with different equipment sequence numbers. The authentication method comprises the following steps that: the electronic lock respectively accumulates and stores the application times of the password tokens according to the equipment sequence numbers; each password token accumulates and stores own application time; a dynamic password is calculated according to certain rules at the password token end on the basis of the equipment sequence numbers and the accumulated application times, and then is displayed; a dynamic password set is calculated according to the same rules of the password token end at the electronic lock end on the basis of the equipment sequence number corresponding to the password token in use and the allowable error range of the accumulated application times corresponding to the equipment sequence number, and a password input by a user is received; and an unlocking command is executed if the password input by the user is in the selectable dynamic password set, otherwise, the unlocking operation is ineffective. The system and method need no time benchmark, the service life and the security of the system can be prolonged and improved, and a hardware design is simplified.

Description

technical field [0001] The invention relates to an anti-theft electronic lock, in particular to a dynamic password electronic lock system and an authentication method thereof. Background technique [0002] With the development of the electronic industry, the development of electronic locks is also changing with each passing day. Various electronic locks have appeared one after another, such as digital locks, fingerprint locks, IC card locks, biometric locks, and dynamic password combination locks. The electronic combination lock enters the password through the keyboard or other methods, and controls the opening and closing of the mechanical switch through the main control unit to complete the unlocking and locking. It has the following advantages: simple operation; the main control unit can realize various practical functions such as violent entry alarm and fire alarm by adding peripheral circuits. China's first invention application "electronic lock with automatic password...

AI Technical Summary

Problems solved by technology

China's first invention application "electronic lock with automatic password generation function and its control method", application number "201110159168.3", its patent password is mass-produced in advance and stored in EEPROM, which has certain security risks; another Chinese patent in First invented and applied for "Electronic Lock System and Demonstration Method Based on Dynamic Password", application number "201110264483.2". The lifetime is very limited, and the time-based generation circuit is relatively more complex

[0003] However, these existing electronic password locks have the following problems: 1. The password is single and easy to be stolen; 2. The dynamic token is based on time and is in a running state for a long time. Cards and electronic locks themselves have no password protection function, and their security needs to be improved and are easily damaged

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