METHOD, DEVICES AND COMPUTER PROGRAM PRODUCT FOR INITIAL AUTHENTICATION OF A MOBILE CLIENT COMMUNICATION DEVICE TO A BOOTSTRAP SERVER

摘要

The invention relates to a method for initial authentication, with respect to a bootstrap server entity of a mobile communication network, of a client communication device and/or of a subscriber identity module within the client communication device, wherein after the initial authentication, the client communication device is enabled or initialized to operationally communicate with the mobile communication network, wherein a device identifier information is assigned to the client communication device,wherein the method comprises the following steps:-- in a first step, a pre-shared key identifier information is stored to a subscriber identity module element as well as transmitted to the bootstrap server entity,-- in a second step, subsequent to the first step, the subscriber identity module element is associated with or built in or assigned to the client communication device as its subscriber identity module,-- in a third step, subsequent to the second step, the client communication device with its subscriber identity module initially communicates with the bootstrap server entity and transmits the device identifier information and the pre-shared key identifier information to the bootstrap server entity, wherein the client communication device and/or the subscriber identity module within the client communication device is initially authenticated by the bootstrap server entity in case that the pre-shared key identifier information is verified by the bootstrap server entity.