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Data authentication method in very-high-frequency data chain transmission

A technology for data transmission and authentication methods, which is applied in the field of data security authentication and can solve problems such as increasing the communication burden of the original channel

Inactive Publication Date: 2017-02-15
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the transmission content of this authentication scheme is the data to be sent and its signature, which increases the communication burden of the original channel

Method used

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  • Data authentication method in very-high-frequency data chain transmission
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  • Data authentication method in very-high-frequency data chain transmission

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Embodiment Construction

[0020] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the data authentication method of the present invention will be further described in detail below in conjunction with specific implementation methods and accompanying drawings.

[0021] The data authentication method provided by the embodiment of the present invention proposes an optimized signature-based data authentication method for the problem of excessive channel occupancy of the existing VHF data link transmission data authentication method.

[0022] The embodiment of the present invention is described by VDL-4 mode data transmission.

[0023] The VDL-4 transmission system consists of a message generation part, a message exchange part (VDL-4 message transmission), and a report summary part.

[0024] ADS-B information generating part is composed of message generating module, message encoding module and message signing module.

[0025] The information generati...

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Abstract

The invention discloses a data authentication method in very-high-frequency data chain transmission, which can be used for realizing an authentication process of VDL-4 mode data of an ADS-B type protocol in an aviation telecommunication network (ATN). The ADS-B is an operation monitoring technology based on a GPS system and an aircraft in ground / air and air / air data chain communication. A sender is a broadcaster in the data authentication method disclosed by the invention. An air traffic control centre is a key generation centre KGC, which is responsible for generating a private key for the broadcaster. The data authentication method comprises the following steps: the broadcaster equipped with an ADS-B system needs to register in the KGC to obtain the private key itself before broadcasting data to be processed; data processing operation of each part of a VDL-4 message to be processed is carried out by utilization of the private key, so that a result to be sent is generated; the data processing operation comprises data binary conversion and signature calculation; the calculated signature result is broadcasted through the ATN; and a receiver equipped with the ADS-B performs message verification and recovery of the result after receiving the signature result.

Description

technical field [0001] The invention relates to the technical field of data security authentication, in particular to a data security authentication method applicable between a sending end and a transmitting end of a VHF data link in an ATN. Background technique [0002] Automatic Dependent Surveillance-Broadcast (ADS-B) is a transmission method added to Automatic Dependent Surveillance (ADS), mainly based on GPS global satellite positioning system and air-air, ground-air, ground-ground data link communication aircraft Run monitoring technology. [0003] In the existing aviation communication technology, VHF data link mode 4 (VDL-4) can provide data communication of ADS-B protocol. The identity, location and other information of the aircraft can be broadcast regularly, so that the aircraft in the air can understand each other's position and whereabouts, and do not rely on ground radar events and control purposes. Compared with high frequency data link (HF), VDL-4 has the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L29/06
CPCH04L63/0428H04L9/32H04L9/3236
Inventor 魏金侠刘建毅张茹
Owner BEIJING UNIV OF POSTS & TELECOMM