KEY GENERATION METHOD AND DEVICE

原文（中国語）

A key generation method and a device are provided. The method includes: a first device sends a plurality of first messages to a second device. Different first messages among the plurality of first messages occupy different time domain ranges. The first messages are used for the second device to generate a key. The first device receives a plurality of second messages sent by the second device. Different second messages among the plurality of second messages are related to different first messages. The last second message among the plurality of second messages carries the key of the second device. The first device generates a verification key of the second device on the basis of the plurality of second messages and a target model.