Unified authentication token generation method and device

The invention relates to the technical field of data encryption, and discloses a unified authentication token generation method and device, and the method comprises the steps: a gateway receives user request information transmitted by a client, and transmits the user request information to an authentication server when judging that the user request information is a user login request; when the user storage information corresponding to the login information exists in the database, the authentication server encrypts the login information into an initial token at a time; and the gateway performs secondary encryption on the initial token to generate a final token, and returns the final token to the client corresponding to the user request information. According to the scheme, the final token is generated through two times of encryption, the security of data transmission is guaranteed, verification of some security parameters is added in the parameters of the secondary encryption algorithm, attacks of an external