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A satellite positioning data encryption system and encryption method

A technology of satellite positioning and data encryption, which is applied in the fields of satellite navigation and positioning and information security. It can solve the problems of easy illegal theft of positioning information, affecting the scope of application of the system, and potential safety hazards, so as to avoid complexity and cost, improve security, and simplify The effect of the key exchange process

Active Publication Date: 2017-08-08
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the positioning information of the common front-end location display application system is easy to be illegally stolen, which seriously affects the scope of application of these systems and hides a great security risk

Method used

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  • A satellite positioning data encryption system and encryption method
  • A satellite positioning data encryption system and encryption method
  • A satellite positioning data encryption system and encryption method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] This example is a figure 2 A set of satellite positioning data encrypted transmission system built with the structure shown, of which 1 is the Beidou satellite positioning receiver module, responsible for receiving positioning signals from satellites, the model can be UM220-3, NEO-M8N, etc., and the general processor 2 2 is a general-purpose microprocessor / microcontroller, the model can be STM32, S3C2440, etc.; 3 is memory (including RAM, ROM, FLASH, EEPROM, etc.), and only the built-in memory of the microprocessor ( For example, STM32 is integrated with RAM and FLASH), and external expansion memory can also be used; 4 is a dedicated security chip, the model can be A980 (SSX1111), IS32U256A (SSX1014), etc., used to store the preset root key public key, session Key public key, generate and save continuous encrypted transmission data encryption key CK, cooperate with general microprocessor 2 to carry out SM2, SM4 encryption operation; 5 is 3G communication module, you ca...

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PUM

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Abstract

The invention relates to a satellite positioning data encryption system and method. Front-end equipment of the system controls a processor through the front end to process information received by a satellite receiver, and processed information is stored in a storage and sent to a communication link through a data transmission device; a central data transmission device receives the information sent by the communication link, the information is transmitted to a central control processor and stored in a central storage, and the processed information is sent to a showing device and an application system; a front-end control processor is connected with an encryption / signature verification chip used for performing encryption on the information received by the satellite receiver and performing verification on a received control command, and the central control processor is connected with a decryption / signature verification chip used for performing decryption on the information received by the central data transmission device and performing signing on the control command sent to the front end. According to the system, under the circumstance that complexity of the system is reduced as much as possible, information safety of front-end locating data in a transmission process of the communication link is guaranteed.

Description

technical field [0001] The invention relates to the technical fields of satellite navigation and positioning and information security, in particular to a satellite positioning data encryption system and an encryption method. Background technique [0002] Using satellite navigation and positioning receivers can easily obtain the geographic location information of someone or something at a specific moment, and with the necessary control, transmission, and processing equipment, it can form a variety of front-end position display or command and dispatch systems. Such as taxi dispatching system, official vehicle management system, police force distribution real-time display system, etc. A basic front-end location display application system generally consists of three parts: front-end equipment, communication links and centers. [0003] The front-end equipment is the data source of the application system. It is generally composed of satellite navigation and positioning receivers,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04B7/185
Inventor 张俊业
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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