GIS position information transmission encryption method and device in trunking communication

Abstract

The invention relates to the field of information processing in trunking communication, and in particular relates to a GIS position information transmission encryption method and device in trunking communication. The GIS position information transmission encryption method in trunking communication comprises the steps that: a core network receives GIS position information encrypted for one time, and puts the GIS position information encrypted for one time in a KMD data frame format packet; a KMD analyzes and decrypts the KMD data frame format packet, so that the GIS position information is obtained; then, the GIS position information is encrypted for the second time; then, the GIS position information encrypted for the second time forms a packet according to a protocol stack format; a dataframe format packet of the core network is formed, and transmitted to the KMD; the core network analyzes the transmitted data frame format packet of the core network, so that the GIS position information encrypted for the second time is obtained; then, information is forwarded to a corresponding dispatcher according to the KMS forwarded by the number of a subscriber; after receiving KMD forwardinginformation, the dispatcher performs KMD forwarding information decryption through a GIS cryptographic machine, so that the GIS position information is obtained; and the dispatcher sends the GIS position information to the corresponding dispatcher, namely the subscriber, according to the number of the subscriber.

Description

technical field [0001] The invention relates to the field of information processing in cluster communication, in particular to a transmission encryption method and device for GIS position information in cluster communication. Background technique [0002] The trunking communication system is a new type of radio dispatching system, which is developed from a simple wireless communication system. It is a new system of a dedicated dispatching wireless communication system and an advanced development stage of a dedicated mobile communication system. Clusters in our country have a wide range of applications. GIS in cluster communication is a specific and very important spatial information system, and positioning information is an important part of GIS. GIS positioning information is widely used in vehicle positioning, equipment positioning, personnel positioning, etc., especially in the fields of public security, emergency events, large-scale gatherings and terrorist attacks, enc...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in the prior art, when multiple subscribers subscribe to multiple GIS location information, the GIS reporting terminal does not know who the subscriber is, because the GIS reporting terminal does not have a subscriber number and cannot form For the problem of one-to-one encryption and decryption mode, a method and device for encrypting transmission of GIS position information in cluster communication are provided

Because KMD contains the keys of all GIS reporting terminals and subscribers, it can solve the problem of multiple subscribers subscribing to multiple GIS location information

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