Hyundai motor company (20240121110). CROSS-CERTIFICATION METHOD AND DEVICE FOR CHARGING ELECTRIC VEHICLE simplified abstract

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CROSS-CERTIFICATION METHOD AND DEVICE FOR CHARGING ELECTRIC VEHICLE

Organization Name

hyundai motor company

Inventor(s)

Min Ho Shin of Yongin, Gyeonggi-do (KR)

CROSS-CERTIFICATION METHOD AND DEVICE FOR CHARGING ELECTRIC VEHICLE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240121110 titled 'CROSS-CERTIFICATION METHOD AND DEVICE FOR CHARGING ELECTRIC VEHICLE

Simplified Explanation

The patent application describes an authentication method and device for a charging station to verify a contract certificate of an electric vehicle using a cross certificate when the charging station does not have an MO RootCA certificate. The method involves transmitting an SECC certificate chain to the electric vehicle, receiving a verification result, receiving a contract certificate chain from the electric vehicle, and verifying the cross certificate and contract certificate based on predetermined certificates.

  • Explanation of the patent/innovation:
 * Transmit SECC certificate chain to electric vehicle
 * Receive verification result for SECC certificate
 * Receive contract certificate chain from electric vehicle
 * Verify cross certificate based on predetermined RootCA certificate
 * Verify contract certificate based on obtained public key
      1. Potential Applications:

- Electric vehicle charging stations - Secure contract verification systems

      1. Problems Solved:

- Authentication of electric vehicles in charging stations - Ensuring secure transactions between vehicles and charging stations

      1. Benefits:

- Enhanced security for charging transactions - Streamlined authentication process for electric vehicles

      1. Potential Commercial Applications:
        1. Secure Authentication for Electric Vehicle Charging Stations
      1. Possible Prior Art:

- Authentication methods for electronic devices - Certificate verification systems

        1. Unanswered Questions:
        2. How does this method handle potential security threats?

The patent application does not provide detailed information on the specific security measures implemented to address potential threats.

        1. What are the potential limitations of this authentication method?

The patent application does not discuss any limitations or drawbacks of the proposed authentication method.


Original Abstract Submitted

an authentication method and device enable a charging station to verify a contract certificate of an electric vehicle based on a cross certificate when the charging station is not equipped with an mo rootca certificate. an electric vehicle authentication method for providing plug-and-charge charging to the electric vehicle in the charging station includes: transmitting, to the electric vehicle, an secc certificate chain including an secc certificate and at least one charging device family subca certificate and receiving a verification result for the secc certificate from the electric vehicle; receiving a contract certificate chain including a contract certificate from the electric vehicle; and verifying the cross certificate based on a predetermined rootca certificate to obtain a public key of a charging operator rootca or a charging operator subca included in the cross certificate and verifying the contract certificate based on an obtained public key.

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