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A method and system for classifying and storing keys

A key and key file technology, which is applied in the field of information security, can solve the difficulty and complexity of key production and modification work, without considering the strictness of key management methods and workflow, and the difficulty and complexity of unified key work. Complexity and other issues, to achieve the effect of reducing the difficulty of key integration, integration and management

Active Publication Date: 2020-11-24
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key management method of storing the two keys in a single key file makes it difficult and complicated to make and modify the key
In addition, there is still a problem in the existing technology that the strictness of key management methods and different workflows are not considered in the software design, which will lead to the difficulty and complexity of unified key production.

Method used

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  • A method and system for classifying and storing keys
  • A method and system for classifying and storing keys
  • A method and system for classifying and storing keys

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Embodiment Construction

[0051] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0052] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The present invention relates to a method and system for classifying and storing keys, wherein the method includes: monitoring a join message sent by a new device joining a network for the first time; determining the device type of the new device based on the join message , generate a device identifier for the new device according to the device type; when the device type is a ground device, generate the device identifier according to the unified root key of the ground area where the new device is located and the device identifier the ground device key of the new device; when the device type is a vehicle device, calculate the hash value of the device identifier, and generate the vehicle device key of the new device according to the hash value; and use the public Encrypt the key file of the ground equipment and the key file of the vehicle equipment respectively, and store the encrypted key file of the ground equipment and the key file of the vehicle equipment in the safe storage device.

Description

technical field [0001] The present invention relates to the field of information security, and more specifically, to a method and system for classifying and storing keys. Background technique [0002] Radio Blocking Center (RBC, Radio Blocking Center) is the core equipment of China Train Control System (CTCS, Chinese Train Control System) level 3 (C3) train control system, and meets the overall train control requirements of C3 train control system. The wireless block center generates the driving permit and route description for the controlled train based on the train status, track occupancy temporary speed limit command, interlocking route status and disaster protection information provided by the on-board subsystem, ground subsystem, and ground external system. Speed ​​limit and other control information, and transmit the above information to the C3-level vehicle subsystem through the wireless communication system. [0003] In the existing RBC technical solution, the keys ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/0861H04L9/0866H04L9/0894H04L2463/062H04L63/061H04W4/42H04L63/0442B61L15/0027H04L63/105H04L9/0643B61L27/20
Inventor 麻江帆周兴韬杨韬李涛郑义川刘木齐张馨则杨杰
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD