The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2023
Filed:
Aug. 16, 2022
Apple Inc., Cupertino, CA (US);
Xiangying Yang, Cupertino, CA (US);
Jean-Marc Padova, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Embodiments described herein relate to credential wrapping for secure transfer of electronic SIMs (eSIMs) between wireless devices. Transfer of an eSIM from a source device to a target device includes re-encryption of sensitive eSIM data, e.g., eSIM encryption keys, financial transaction credentials, transit authority credentials, and the like, using new encryption keys that include ephemeral elements applicable to a single, particular transfer session between the source device and the target device. The sensitive eSIM data encrypted with a symmetric key (K) is re-wrapped with a new header that includes a version of Kencrypted with a new key encryption key (KEK) and information to derive KEK by the target device. The re-encrypted sensitive SIM data is formatted with additional eSIM data into a new bound profile package (BPP) to transfer the eSIM from the source device to the target device.