Access request verification method and related device

The invention discloses an access request verification method and a related device.The access request verification method comprises the steps that when an access request sent by a client side is obtained, a target encryption algorithm corresponding to the access request is obtained, the target encryption algorithm is a dynamically-changing preset encryption algorithm, and the target encryption algorithm is sent to the client side; the outputs of the preset encryption algorithms are the same; sending the target encryption algorithm to the client, so that the client generates a verification parameter based on the target encryption algorithm; and verifying the verification parameter sent by the client to obtain an access verification result of the access request. The technical problems that an existing algorithm logic used for generating verification parameters is easily cracked by an attacker, and the attacker can freely construct different verification parameters through a cracked algorithm, so that the attack