Vehicle key bidirectional encryption authentication method and system, vehicle binding device and NFC card

• Main Author: PENG XUECHENG
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CHECKING-DEVICES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATING RANDOM NUMBERS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; TIME OR ATTENDANCE REGISTERS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; VOTING OR LOTTERY APPARATUS; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a vehicle key bidirectional encryption authentication method and system, a vehicle binding device and an NFC card, and the method comprises the steps: carrying out the bidirectional encryption authentication of the vehicle binding device and the NFC card based on a random number and a secret key, guaranteeing the mutual decryption of the vehicle binding device and the NFC card, and then transmitting a key ciphertext to the NFC card, after the NFC card successfully decrypts the key ciphertext, the vehicle binding device stores the first identifier of the NFC card to the identifier database, and because the vehicle binding device and the NFC card are subjected to bidirectional encryption authentication before binding and the encrypted ciphertext is sent between the vehicle binding device and the NFC card in the authentication and binding process, the vehicle binding device and the NFC card can carry out encryption authentication on the vehicle binding device and the NFC card. The safety