A coalition taxi-hailing method and system for privacy protection

Abstract

The invention relates to a coalition taxi-hailing method and system for privacy protection, belonging to the technical fields of anonymous authentication, privacy protection and block chain. Comprisesa plurality of taxi-hailing cloud service providers sharing a data component of a user, a coalition taxi-hailing platform, a passenger sending a coalition taxi-hailing request to a roadside node, a roadside node verifying the identity and data of the passenger, broadcasting the request in its coverage area, and a driver receiving the broadcasting sending a coalition taxi-hailing response to the roadside node; The roadside node verifies the identity and data of the driver, and sends the matched driver information to the corresponding passenger. The passenger sends confirmation message to the roadside node after contacting the driver, starts the alliance to take a taxi, and the passenger pays the fare anonymously to the driver; Roadside nodes maintain federated block chains. The taxi-hailing method and system provide timely taxi-hailing service for passengers, provide commercial benefits for cloud service providers, protect user privacy and cloud service providers' commercial secrets, and reduce computational and communication overhead on the basis of existing protocols.

Description

Technical field [0001] The invention relates to a privacy-protected alliance taxi-hailing method and system, belonging to the technical fields of anonymous authentication, privacy protection and blockchain. Background technique [0002] Using the real-name method to submit a taxi service, although it can ensure the practicality, but will expose the privacy of users, mainly passengers and drivers. Therefore, in recent years, a number of privacy-protected taxi-hailing methods have emerged. The privacy protection taxi method generally includes four parties: Rider, Driver, Cloud Service Provider, and Certificate Authority. Among them, the passenger wants to get a taxi service, and the driver provides a taxi. For services, cloud service providers are platforms that provide taxi services, and certificate issuing centers are user registration agencies. [0003] The specific implementation process of the privacy-protected taxi method includes five main steps: (1) Passengers and drivers r...

AI Technical Summary

Problems solved by technology

However, in this scenario, not only the user has privacy that needs to be protected, including identity, location of the car, taxi conditions, and destination, but the cloud service provider also has its own business secrets that need to be protected, such as when Didi’s driver has been in a certain area. If there are no Uber passengers on the inner streets, Didi will know that there are not enough drivers for Uber in this area, so it can call more drivers to this area to occupy the market; The standards for obtaining commissions in taxi rides are public. If the identities of cloud service providers are not protected, the commissions they get from alliance taxis every time will also be calculated, thus exposing their profits in alliance taxis. This exposes their trade secrets

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