Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Secret key update method and system

A key update and key technology, applied in the field of communication, can solve the problems of unable to automatically update the key, manual configuration, etc., and achieve the effect of convenient, fast and regular automatic update

Active Publication Date: 2015-11-25
北京国基科技股份有限公司
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The key of the existing AIS encryption method needs to be manually configured, and the key cannot be automatically updated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Secret key update method and system
  • Secret key update method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0022] The invention solves the problem of automatic key update in key management. The key management needs to periodically update the encryption key of AIS equipment, which can realize the automatic configuration of a large number of deployed equipment.

[0023] figure 1 It is a flowchart of the key update method of the present invention. As shown in the figure, the method specifically includes the following steps:

[0024] Step 101, the key management center encapsulates the key update identifier and the update transmission key into a key update message;

[0025] Specifically, when the key update time is reached or when the key update condition is reached, the key management center encapsulates the key update identifier and the update transmission key into a key update message. For example, the pre-set key update t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a secret key update method and a system. The method includes: a secret key update message is encrypted to an encryption key update message by the adoption of a public key and sent to encryption ship automatic identification system AIS equipment by a secret key management center; the encryption AIS equipment decrypts the encryption key update message to the secret key update message by the adoption of a private key and obtains an update transmission secret key; the encryption AIS equipment encrypts a secret key confirmation message to an encryption key confirmation message by the adoption of the private key and sends the message to the secret key management center; the secret key management center encrypts a secret key enablement message to an encryption key enablement message by the adoption of the public key and sends the message to the AIS equipment; and the encryption AIS equipment decrypts the encryption key enablement message to the secret key enablement message by the adoption of the private key, and transmitted information is encrypted by the adoption of the update transmission secret key during data transmission. According to the secret key update method and the system, regular automatic update of encryption keys of large-scale AIS equipment is conveniently and rapidly realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a key update method and system. Background technique [0002] The information security flow encryption technology of communication network is widely used in real-time secure communication. The current stream encryption technology mainly uses symmetric encryption algorithms such as RC4 / 3DES. The asymmetric encryption algorithm has a large amount of computation, and it is difficult to process a large amount of data in stream encryption communication. [0003] The Automatic Identification System (AIS) is a system that automatically broadcasts and receives ship dynamic and static information in the VHF maritime mobile frequency band using self-organizing time-division multiple access to realize identification, monitoring and communication. AIS is a general equipment used internationally for ship identification and information acquisition. Compulsory installation is required for l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W12/04
Inventor 邹新生何代钦陈正伟朱勤
Owner 北京国基科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com