Secure transmission system for broadcast automatic monitoring information

Abstract

Implementation method of ADS-B information security transmission: (1) Construct a three-level vertical management system according to the air traffic control center, flight information region, and the control area to which the flight information center belongs. The lowest layer is the ADS- User B, ADS-B users and their control area servers communicate with each other using an independent two-way authentication mode; (2) ADS-B users are at the beginning of the planned route safety period, and the air traffic control center assigns a temporary ADS-B user to the ADS-B user Identity, and establish a mapping relationship from temporary identity to real identity, and send the mapping relationship to the management department of the flight information region that the ADS-B user plans to pass through; before the ADS-B user takes off, the management department of the control area will The user's temporary identity in the server, the two-factor symmetric key, and the server identification code of the ground server near the user's planned route and the public key information of the server message authentication code are secretly distributed to the ADS-B user. The invention can effectively resist various active attacks, realize safety authentication, and ensure the safety of ADS-B information transmission.

Description

technical field [0001] The present invention relates to a broadcast automatic dependent surveillance (Automatic Dependent Surveillance-Broadcast, hereinafter referred to as: ADS-B) information security transmission system, in particular to a group management system of user characteristic information and an independent ADS-B broadcast communication system Two-way authentication mode, so as to ensure the safety of important information such as identity characteristics of ADS-B user aircraft during flight, belongs to the field of air traffic control. Background technique [0002] The fundamental purpose of air traffic control is to make the aircraft on the route safe, effective and planned to fly in the airspace, and the controller needs to monitor the flight dynamics of the aircraft in the controlled airspace in real time. [0003] The traditional radar surveillance technology uses an inquiry and response method to detect the target. In the long run, radar surveillance techno...

AI Technical Summary

Problems solved by technology

However, the current anonymous service security mechanism only hides part of the identity code in the broadcast information message of the user's aircraft. Not only the user's aircraft and the ground management department have no ability to resist the above-mentioned active attack, but the attacker can also analyze the identity code in the message. Other parts of the information (such as longitude and latitude position, altitude, speed, etc.) to grasp the real-time status of the user, causing huge security risks

In addition, although the communication system of ADS-B belongs to the wireless communication mode in a broad sense, the existing wireless communication network security mechanism is not suitable for ADS-B: ADS-B users here only refer to civil aviation airliners, although there are a large number of Generally, they only fly on fixed routes and stop at airports. The distribution of airports is fixed. Often there is only one airport in a fairly wide area, and the aircraft, personnel, ground facilities, and management systems in the civil aviation field are all self-contained. These are very different from the common wireless communication user and base station distribution and management modes; moreover, ADS-B adopts a special information transmission mode, and the sending and receiving of monitoring information are independent of each other, and real-time monitoring is carried out in a specific airspace , Periodic broadcasting, no fixed object, these are different from the traditional end-to-end communication mode, and it is impossible to establish a connection by mutual authentication in the form of inquiry / response before formal communication. Therefore, countries around the world are currently promoting the application of ADS- Effective information security measures have not been taken in the process of B

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