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.

Abstract: The present disclosure provides a wall-mounted bracket. The wall-mounted bracket includes a host holder and an accessory holder. The accessory holder is connected to a side of the host holder, and that side is away from the bracket mounting wall. The accessory holder includes a first accessory holding portion and a second accessory holding portion arranged side by side. The wall-mounted bracket provided in the present disclosure may be hung on the bracket mounting wall, optimizing idle vertical space to store the gaming device, thereby reducing the occupation of the user's readily available space. Further, the width of the first holding portion and the second holding portion when they are arranged side by side matches the width of the host holder, thus maximizing the efficiency of the space occupied by the gaming device.

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: 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: 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.