公开(公告)号：US20230362631A1

公开(公告)日：2023-11-09

申请号：US18313813

申请日：2023-05-08

Applicant: Apple Inc.

Inventor： Deepak DASH ,  Ahmed M. SOLIMAN ,  Nitin KUPPELUR ,  Ahmed MOUSTAFA

IPC: H04W12/033 ,  H04W12/30 ,  H04W12/48 ,  H04L9/06

CPC classification number: H04W12/033 ,  H04W12/35 ,  H04W12/48 ,  H04L9/0631

Abstract: This application describes techniques for managing subscriber identity module (SIM) data for a wireless device, including secure storage and processing of SIM data. Select SIM data is encrypted using an encryption key by a processor external to a secure element, e.g., a universal integrated circuit card (UICC) or electronic UICC (eUICC), and at least a portion of the select SIM data is stored in the secure element. The select SIM data can be divided into multiple parts, where a first part of the encrypted SIM data is stored in the secure element, while a second part of the encrypted SIM data is stored external to the secure element, such as in a non-volatile memory (NVM) of the wireless device. The encryption key is stored in a secure NVM of the wireless device. The encrypted SIM data and the encryption key are required to decrypt and recover the SIM data.