Abstract: The present disclosure describes a piece of camera equipment and a terminal. The camera equipment includes a housing, a camera assembly, a shutter component, and a sensing mechanism. The housing defines an accommodation space; the camera assembly and the shutter component are arranged in the accommodation space. The shutter component defines a through-hole, and the through-hole is configured to enable the camera assembly to acquire image information through the through-hole. The sensing mechanism is connected with the shutter component and configured to control the shutter component to reveal or block the through-hole in response to the user's control command.

Abstract: The present disclosure describes a privacy cover assembly and a terminal. The privacy cover assembly is for a piece of camera equipment. The camera equipment includes a camera assembly. The privacy cover assembly includes a shutter component and a sensing mechanism. The shutter component defines a through-hole; the through-hole is configured to enable the camera assembly to acquire image information through the through-hole. The sensing mechanism is connected to the shutter component and is configured to control the shutter component to reveal or block the through-hole in response to the user's control command.

Abstract: Provided are a method and device employing a smart contract to realize identity-based key management. The method comprises: running a smart contract, and executing a key management process, wherein the key management process comprises: when a key of a target user requires an update and the target user is not a supervised user, generating a master public key and a master private key pertaining to the target user; acquiring, from a blockchain, identity information of the target user; generating a first target private key according to the master public key and the master private key pertaining to the target user and the identity information of the target user; and replacing a current private key of the target user with the first target private key.