Unmanned aerial vehicle group key extraction and security authentication method based on GPS signal

Abstract

The invention relates to an unmanned aerial vehicle group key extraction and security authentication method based on a GPS signal, and belongs to the technical field of data information processing. The method is mainly divided into an information extraction stage and an equipment authentication stage, and during initialization, each node in a cluster system generates similar sequence information by using an artificial intelligence technology according to a GPS signal acquired by the node; unified information is generated through a fuzzy extractor; and finally, generating a session key according to the unified information. In the flight process, interaction information is encrypted through session keys among the aircrafts so as to ensure communication safety, and in the flight process, the aircrafts extract the keys again according to the GPS signals at set intervals so as to realize key updating. According to the scheme, the generation of the initial keys on all the unmanned aerial vehicles in the fleet can be realized only through a public channel, and the problem of insufficient randomness of the keys can be well solved. In addition, the authentication mechanism based on the GPS signal in the scheme can also be applied to other unmanned equipment ad hoc network scenes, and has good expansibility and commercial value.

Description

technical field [0001] The invention belongs to the technical field of data information processing, and relates to a GPS signal-based key extraction and security authentication method for drone fleets. Background technique [0002] UAVs have been widely used in military and civilian fields because of their low cost, high mobility, easy portability, rapid deployment, convenient use, and strong timeliness. Due to the self-organizing characteristics of the UAV communication network, it is extremely vulnerable to interference and hacker attacks, threatening the security of UAV communication. [0003] At present, the common communication security for drone fleets often adopts encrypted communication process. In order to ensure communication security, drones need to hold the same key in advance, that is, the encryption key needs to be distributed in advance. The schemes that have been proposed so far include: symmetric key distribution, public key encryption, password-based authe...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method for key extraction and security authentication of the UAV group based on GPS signals, which can realize the generation of initial keys on all UAVs in the group only through open channels, And the extracted key has enough information entropy, which can solve the problem of insufficient randomness of the key

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