Apple Inc.
Apparatus and methods for electronic subscriber identity module (eSIM) installation and interoperability

Abstract:

Methods and apparatus for managing processing of electronic Subscriber Identity Modules (eSIM) data at a mobile device are disclosed. An eSIM management entity of an embedded Universal Integrated Circuit Card (eUICC) in the mobile device obtains an encrypted eSIM package, decrypts the eSIM package to obtain eSIM contents formatted generically and not specifically tailored to requirements of the eUICC. In some embodiments, the eSIM contents are formatted based on an abstract syntax notation (ASN) distinguished encoding rules (DER) format. The eSIM management entity parses the formatted eSIM contents to retrieve individual eSIM components and installs each eSIM component for the eSIM in an eSIM security domain on the eUICC. In some embodiments, the eSIM management entity acts as a local, personalization server to provide local Trusted Service Manager (TSM) server functionality for eSIM installation that transforms "generically formatted" eSIM contents into eSIM components that match specific requirements of the eUICC.