Abstract: This application provides a data encryption method, a data decryption method, a secure data backup method, a secure data restoration method, and an electronic device. Different types of data packets in the card data are separately encrypted by using a secure element SE and a trusted execution environment TEE. In the encryption process, a user and a third-party card data provider are introduced, and are separately responsible for generation, storage, and delivery of one of key factors. Then, a real backup key is generated with reference to a key factor provided by a mobile phone party. After being encrypted in the SE and the TEE by using the backup key, the card data is uploaded to a cloud server for backup. The application can ensures data backup security in the SE and the TEE.

Abstract: This application provides a vehicle control method. The method Can include a mobile terminal that establishes a short-range communication connection to a vehicle. The mobile terminal reads vehicle information from a passive NFC apparatus in the vehicle. The mobile terminal generates control information based on the vehicle information. The mobile terminal sends the control information to the vehicle by using the short-range communication connection. The passive NFC apparatus is, for example, an NFC tag, and the mobile terminal is, for example, a mobile phone. In a process of controlling the vehicle, the mobile phone may be in a screen-off state throughout the process, and the user does not need to perform an operation in an interface of the mobile phone, thereby enhancing the user's experience.

Abstract: A verification method and apparatus are provided. The method includes: performing Bluetooth authentication with a terminal based on Bluetooth authentication information; after the Bluetooth authentication with the terminal succeeds, obtaining RFID authentication information, where the RFID authentication information includes label information and authorization information of an RFID label, and the authorization information is used to indicate an association relationship between the RFID label and the terminal; and performing RFID authentication based on the RFID authentication information, and being in a controllable state after the RFID authentication succeeds. This can effectively prevent a relay attack and improve security of a controlled device.

Abstract: This application provides a data encryption method, a data decryption method, a secure data backup method, a secure data restoration method, and an electronic device. Different types of data packets in the card data are separately encrypted by using a secure element SE and a trusted execution environment TEE. In the encryption process, a user and a third-party card data provider are introduced, and are separately responsible for generation, storage, and delivery of one of key factors. Then, a real backup key is generated with reference to a key factor provided by a mobile phone party. After being encrypted in the SE and the TEE by using the backup key, the card data is uploaded to a cloud server for backup. The application can ensures data backup security in the SE and the TEE.