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Dynamic password lock system capable of changing password with date

A technology of dynamic combination locks and combination locks, applied in electric alarm locks, electric number locks, building locks, etc., can solve problems such as inconvenient use, and achieve the effect of ensuring safety and convenient management

Inactive Publication Date: 2011-08-31
袁磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two types of coded locks are slightly inconvenient for temporary users of coded locks. Fixed coded locks require a coded lock manager to modify the code at the location of the coded lock after being used by a temporary user; Keys are physically handed over to casual users and returned after use

Method used

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  • Dynamic password lock system capable of changing password with date
  • Dynamic password lock system capable of changing password with date
  • Dynamic password lock system capable of changing password with date

Examples

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Embodiment Construction

[0019] The dynamic combination lock system that password of the present invention changes with date is made up of two parts of lock body and temporary password generator, see figure 1 , there is no need for any form of connection between these two parts, nor any form of data exchange. A temporary password generator can be an electronic device like a calculator, or it can be software running on a personal computer or mobile phone. There are lock mechanism part and control part in the lock body, wherein the control part is composed of microprocessor IC1, non-volatile memory IC2, clock unit IC3, LED display IC4 for display (when applicable), etc., through an output driver IC5 , the controller can control the lock mechanism and the alarm IC6. The temporary password generator in the form of an electronic device includes a microprocessor IC7 and a liquid crystal display IC8 for display.

[0020] The temporary password for unlocking is calculated by a fixed password and date throug...

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PUM

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Abstract

The invention provides a dynamic password lock system capable of changing a password with date (or time), which comprises a lock body and a temporary password generator. A fixed password of the password lock is stored in a non-volatile memory in the lock body; a temporary password for unlocking is calculated by a specific algorithm (such as one-way hash function and the like) according to the fixed password and the date; and with the alteration of the fixed password or the change of date, the temporary password correspondingly and automatically changes in a calculable way. Therefore, the temporary password can be calculated by a password lock manager knowing the fixed password in the password lock without touching the password lock; and after the password lock is used by a temporary user, the temporary user can unlock the password lock with the temporary password in a specific time period.

Description

technical field [0001] The invention relates to a dynamic password lock system whose password changes with the date, in particular to a controller of this kind of password lock. Background technique [0002] At present, there are two types of passwords for existing electronic combination locks: the first category is a fixed password that can be set, and the password is stored in a non-volatile memory. When the password stored in the non-volatile memory is checked and the lock is consistent, the value of the password in the non-volatile memory can also be modified through the password setting, and the password can be 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 combination lock, which solves the distress of users needing to remember the password. The electronic key can also use a dynamic...

Claims

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Application Information

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IPC IPC(8): E05B49/00E05B45/06G06F7/58H04L9/16H04L9/32
Inventor 袁磊
Owner 袁磊
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