公开(公告)号：US12284524B2

公开(公告)日：2025-04-22

申请号：US18317323

申请日：2023-05-15

Applicant: Apple Inc.

Inventor： Hyewon Lee ,  Xiangying Yang

IPC: H04W12/72 ,  H04L9/32 ,  H04W12/106

Abstract: The described embodiments set forth techniques for securely transferring a cellular wireless service subscription associated with an electronic subscriber identity module (eSIM) profile from a source wireless device to a target wireless device via communication with servers of a mobile network operator (MNO). An MNO provisioning server encrypts an activation code, used for transfer of the cellular wireless service subscription, with a session key generated based on a one-time-use eUICC public key and a one-time-use server private key. The encrypted activation code is protected from malicious third parties, as only the eUICC of the source wireless device can perform the decryption required by generating an identical session key to recover the activation code. The eUICC of the source wireless device deletes the eSIM profile from the eUICC before providing the activation code to the target wireless device to protect against eSIM profile cloning.

公开(公告)号：US20230171585A1

公开(公告)日：2023-06-01

申请号：US18072536

申请日：2022-11-30

Applicant: Apple Inc.

Inventor： Jean-Marc Padova ,  Hyewon Lee ,  Li Li ,  Raj S. Chaugule ,  Xiangying Yang

IPC: H04W8/18 ,  H04W8/20

CPC classification number: H04W8/183 ,  H04W8/205

Abstract: Systems and methods for facilitating transfer of an eSIM subscription from a source device to a target device. In one embodiment, a source device includes a transceiver and a processor system. The processor system includes an eUICC configured to store an eSIM associated with an eSIM subscription. The processor system is configured to transmit, via the transceiver and to an eSIM subscription manager server, a request for an eSIM subscription transfer activation code; receive, via the transceiver and at least partly in response to the request, a server nonce; generate a signed payload using the server nonce and source device information; transmit, via the transceiver and to the eSIM subscription manager server, the signed payload; receive, via the transceiver and in response to transmitting the signed payload, the eSIM subscription transfer activation code; and provide the eSIM subscription transfer activation code to the target device or a user thereof.