Invention Grant
- Patent Title: Secure electronic subscriber identity module (eSIM) restoration
-
Application No.: US15356398Application Date: 2016-11-18
-
Publication No.: US10356614B2Publication Date: 2019-07-16
- Inventor: Li Li , Arun G. Mathias
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Dickinson Wright RLLP
- Main IPC: H04L9/32
- IPC: H04L9/32 ; H04W12/06

Abstract:
A secure element uses a backup context to restore a deleted electronic Subscriber Identity Module (eSIM) without compromising a trust relationship with a mobile network operator (MNO). A backup copy of a data binary large object (data blob) originally used to instantiate the eSIM is retrieved. The secure element determines if the eSIM within the data blob is uniquely associated with the secure element from a previous installation. The secure element examines the data blob to determine an identifier unique to the eSIM. The identifier can be an integrated circuit card identifier (ICC-ID) or a profile identifier. The secure element searches a table of instantiated eSIMs in the secure memory. If the secure element is able to match the recovered eSIM identifier with an entry in the table, then the secure element installs this eSIM in the secure element.
Public/Granted literature
- US20170150356A1 SECURE ELECTRONIC SUBSCRIBER IDENTITY MODULE (eSIM) RESTORATION Public/Granted day:2017-05-25
Information query