A privacy-preserving path sharing method and system

Abstract

The invention discloses a path sharing method and system for privacy protection, and belongs to the technical field of anonymous authentication and privacy protection. The method comprises the following steps that a user registers with a certificate issuing center, and a queue leader user sends a team request to a roadside node and sends a team name, a team communication key and a destination to members of the team; a team member user sends a team adding request to the roadside node; and the roadside node anonymously authenticates the identity of the user, verifies the request, matches the queue leader user and the team member user, uploads team information after team formation to a cloud service provider, acquires path information, and returns the path information and team information tothe user, and the users in the team share avatars, positions and tracks in real time. The method and the system have the beneficial effects that user privacy, including identity, location and track isprotected, and team member camouflage attacks, team peek attacks and multiple group attacks of opponents are resisted. Compared with an existing location sharing method, the path sharing method has the advantage that the computing overhead and communication overhead are reduced. Compared with an existing path sharing system, the path sharing method has the advantage that security and privacy protection is provided.

Description

technical field [0001] The invention relates to a privacy-protected path sharing method and system, belonging to the fields of anonymous authentication and privacy protection. Background technique [0002] Path sharing is a new type of location-based map navigation and social service for users. It basically consists of cloud service providers and users. Users include team leader users and team members. The user sends the team name, team communication key and destination, and sends the current location, destination and team formation request to the cloud service provider after logging in to the system; the team user sends the current location, destination and entry request to the cloud service provider after logging in to the system Team request; the cloud service provider matches the captain user with the team member user according to the team formation request and team entry request, and returns the path information and team formation matching results to the corresponding u...

AI Technical Summary

Problems solved by technology

[0003] However, existing route sharing services require users to send their current location, destination and team information to the cloud service provider, and this information is the privacy of the user and needs to be protected; after forming a team, the cloud service provider Also able to understand the social relationship between team members, which further threatens the user's privacy

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