Security authentication method and system

Abstract

The invention relates to a security authentication method and system, a roadside security module and a vehicle-mounted security module. The invention relates to the divisional application of an invention patent with the application number of 201810128774.0. The application date of the parent case is February 8, 2018. The invention discloses a security authentication method and system, and belongs to the technical field of information security. The security authentication method disclosed by the invention comprises the following steps: when a vehicle-mounted main control module receives an authentication execution message from a roadside main control module, acquiring a first random number ciphertext from a vehicle-mounted security module, acquiring a second random number ciphertext from the roadside main control module, judging whether the first random number ciphertext is consistent with the second random number ciphertext or not, if yes, sending an authentication success notification to the roadside main control module, otherwise, sending an authentication failure notification to the roadside main control module; and when the roadside main control module receives the notification of authentication failure, updating the number of times of authentication failure, judging whether the updated number of times of authentication failure exceeds a preset number of times, if yes, taking that the authentication fails, and if not, sending a message for executing authentication to the vehicle-mounted main control module again. According to the scheme provided by the invention, on the premise of ensuring transaction security, resource waste is effectively avoided, and practicability is improved.

Description

[0001] This application is a divisional application for an invention patent titled: a safety authentication method and system, a roadside safety module, and a vehicle-mounted safety module, and the application number is: 201810128774.0. technical field [0002] The present invention relates to the technical field of information security, in particular to a security authentication method and system. Background technique [0003] Electronic toll collection system (ETC, Electronic Toll Collection) is an intelligent traffic toll system, including the roadside unit (RSU: Road Side Unit) and the on-board unit (OBU: On Board Unit) on the vehicle; the roadside unit and the vehicle The units exchange data through wireless communication to complete non-stop charging transactions. [0004] In the prior art, the electronic non-parking toll collection system is not perfect, and there are potential safety hazards in the transaction process, which often bring economic losses to users; at t...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the electronic non-parking toll collection system is not perfect, and there are potential safety hazards in the transaction process, which often bring economic losses to users; at the same time, there is a defect that resources are wasted due to a module in the vehicle unit being locked. It is necessary to frequently replace a certain module in the vehicle unit, or even replace the entire vehicle unit, and the user experience is not good

Therefore, the industry urgently needs to propose a technical solution that can overcome the potential safety hazards and resource waste defects in the prior art.

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