| 主权项 |
1. A method for managing universal subscriber identity module (USIM) data in a terminal using a mobile trusted module (MTM), the method comprising:
transferring, by a data management applet in a USIM, input parameters to an information security unit in the terminal when a storage function of USIM data is requested, the input parameters being required for generating a storage root key (SRK)USIM key generation message and a key; generating, by the information security unit, a SRKUSIM key using the input parameters, and storing the SRKUSIM key in a protection region of a mobile information storage unit in the terminal; transferring, by the data management applet, the USIM data to the information security unit, the USIM data being transferred in a form of an application protocol data unit (APDU) message; converting, by a message conversion unit in the terminal, the APDU message into an MTM command; asking, by a USIM data storing unit in the terminal, the information security unit to store the USIM data; and storing, by the information security unit and the mobile information storage unit, the USIM data in the protection region managed by the mobile information storage unit using the SRKUSIM key, wherein the USIM data includes issue information or authentication information of a subscriber, manager secret data, and user secret data, and wherein the input parameters include manager authentication data generated by a key or authentication generation unit in the USIM. |
