Method for transmitting an existing subscription profile from a mobile network operator to a secure element, corresponding servers and secure element
A method for transmitting a subscription profile from an MNO to a secure element pre-provisioned with a temporary profile comprising a unique identifier, MCC and MNC, includes:—Transmitting from the MNO the unique identifier to a SM-DP;—Creating the subscription profile at the SM-DP;—Provisioning in a D-HSS server having the first MCC/MNC the unique identifier and a temporary IMSI comprising a second MCC, a second MNC;—Provisioning in the MNO the temporary IMSI and an ephemeral key;—At the first attempt of the secure element to connect to the D-HSS server, exchanging data in signaling messages for provisioning the secure element with the temporary IMSI;—At the next attempt of the secure element to connect to the MNO network with the temporary IMSI, open an APN and send from the SM-DP to the secure element the subscription profile.
1. A secure element comprising a default profile with an e-IMSI whose MSIN field is initially empty and an operating system comprising instructions for executing the following steps:
a- computing the MSIN field of the e-IMSI to contain a unique identifier of said secure element;
b- sending through a baseband of a terminal with which said secure element is cooperating, in a signaling message an attach request to a server with an e-IMSI containing the unique identifier of said secure element provisioned in said secure element;
c- receiving from said server in at least a signaling message, a command, a correlation identifier and data comprised in payloads of said signaling message, said data comprising at least a part of a temporary IMSI;
d- executing said command at said secure element;
e- executing steps b to d until said secure element is provisioned by said server with said temporary IMSI;
f- sending from said secure element an attach request message to an MNO network which MCC/MNC are comprised in said temporary IMSI.
2. A terminal comprising a secure element according to claim 1 .