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Offline time synchronization method and device based on timestamp encryption algorithm and medium

An encryption algorithm and time stamping technology, which is applied in security communication devices, time-division multiplexing systems, digital transmission systems, etc., can solve the problems of dynamic code unlocking failure, waste of human resources, and low efficiency, so as to prevent random tampering of time Effect

Pending Publication Date: 2022-07-29
ZHUHAI VALWELL ELECTRIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the online state, the method for time synchronization of the key management device is to check the time with the network time, and set the network time as the time of the key management device when the verification is inconsistent; Causes the dynamic code unlocking of the time-based algorithm to fail
In related technologies, the time synchronization method for the key management equipment of the substation in an offline state is mainly for technicians to regularly go to the site for time correction, which is inefficient and wastes human resources

Method used

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  • Offline time synchronization method and device based on timestamp encryption algorithm and medium
  • Offline time synchronization method and device based on timestamp encryption algorithm and medium
  • Offline time synchronization method and device based on timestamp encryption algorithm and medium

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Embodiment Construction

[0049] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0050] The terms "first", "second", "third" and "fourth" in the description and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive in...

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Abstract

The invention discloses an offline time synchronization method based on a timestamp encryption algorithm. The method comprises the following steps: acquiring a current timestamp; encrypting the timestamp to obtain an encrypted time checking code; decrypting the encrypted time synchronization code to obtain the current time; and checking the time of the key management equipment according to the current time. According to the scheme, a strategy of time checking of the time checking code is adopted, a user can complete time checking work of the key management equipment by obtaining and inputting the encrypted time checking code, regular maintenance of a manager is not needed, the current time of the key management equipment can be verified and modified only by the encrypted time checking code, random tampering of the time can be effectively prevented, and the time checking efficiency is improved. And the safety of the key management equipment is improved.

Description

technical field [0001] The present application relates to the field of power management systems, in particular to an offline time synchronization method, device and medium based on a timestamp encryption algorithm. Background technique [0002] In the power grid system, in order to prevent security problems in substations, it is necessary to set up a key management system to manage the keys of substation equipment in a unified manner. However, time deviation may occur during long-term operation of key management equipment, so it is necessary to control the key management equipment of substations. Do time synchronization. In the online state, the key management device performs time calibration by calibrating with the network time, and when the calibration is inconsistent, the network time is set as the key management device time; in the offline state, the time calibration cannot be performed through the network, thus Causes the dynamic code unlock of the time-based algorithm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L9/40
CPCH04J3/0661H04L63/0442
Inventor 高波曾繁寿郭军杨伟柱陈昊
Owner ZHUHAI VALWELL ELECTRIC TECH
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