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:
Apr. 20, 2021
Filed:
Aug. 30, 2018
Apple Inc., Cupertino, CA (US);
Xiangying Yang, Cupertino, CA (US);
Avinash Narasimhan, Cupertino, CA (US);
Li Li, Los Altos, CA (US);
David I. Ahn, Sunnyvale, CA (US);
Jean-Marc Padova, San Francisco, CA (US);
Clark P. Mueller, San Jose, CA (US);
David T. Haggerty, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Embodiments provided herein identify a certificate issuer (CI) to be relied on as a trusted third party by an electronic subscriber identity module (eSIM) server in remote SIM provisioning (RSP) transactions with an embedded universal integrated circuit card (eUICC). In an RSP ecosystem, multiple CIs may exist. Parties rely on public key infrastructure (PKI) techniques for establishment of trust. Trust may be established based on a trusted third party such as a CI. Parties need to agree on the CI in order for some PKI techniques to be useful. Embodiments provided herein describe approaches for an eUICC and an eSIM server to arrive at an agreed-on CI. Candidate or negotiated CIs may be indicated on a public key identifier (PKID) list. A PKID list is distributed, in some embodiments, by means of a discovery server, via an activation code (AC) and/or during the establishment of a profile provisioning session.