Method for personalizing an improved UICC cooperating with a terminal

Method for personalizing an improved Universal Integrated Circuit Card (UICC) cooperating with a terminal, said method comprising:

• i—Sending from said improved UICC to an improved Home Subscriber Server (D-HSS) an attach request message comprising an International Mobile Subscriber Identity (IMSI) with a given Mobile Country Code (MCC) and Mobile Network Code (MNC);
• ii—Sending from said improved D-HSS to said improved UICC at least a command and a first cryptographic data;
• iii—Computing at said improved UICC a secret key by using said first cryptographic data;
• iv—Sending from said improved UICC to said improved D-HSS in at least one Authentication failure message a command and a second cryptographic data;
• v—Repeating steps ii to iv until said improved UICC holds the entire first cryptographic data and said improved D-HSS holds the entire second cryptographic data;
• vi—When said improved D-HSS holds the entire second cryptographic data, computing at said improved D-HSS the same secret key by using said second entire cryptographic data;
• vii—Allocating by said improved D-HSS a free IMSI belonging to an operator and transferring from said improved D-HSS to said improved UICC said free IMSI and personalization data;
• and
• viii—Personalizing said improved UICC with said free IMSI, personalization data and said secret key, wherein said improved UICC sends in an Authentication message request an International Mobile Equipment Identity (I MEI) of said terminal with which it cooperates and said improved D-HSS uses the IMEI of said terminal to select a Mobile Network Operator (MNO) for the user of said terminal.