eUICC Profile Provisioning via EID-Bound Secure Channel Sessions

The patent applies preliminary action by establishing a Secure Channel Protocol Session before downloading the profile package. The session is set up in advance using the eUICC's hardware identifier (EID) to create a secure binding between the profile and the specific eUICC. This preliminary secure channel establishment ensures that subsequent profile downloads are reliably bound to the correct device, preventing profile misallocation while maintaining a structured provisioning process.

The patent uses an intermediary approach by introducing a profile manager as a mediator between the profile server and the eUICC. The profile manager handles the establishment of Secure Channel Protocol Sessions, manages the binding between profiles and eUICCs, and coordinates the provisioning process. This intermediary layer abstracts the complexity of secure channel management, allowing reliable profile binding while simplifying the overall system architecture and making the provisioning process more manageable.

The patent applies dynamics by implementing a flexible binding mechanism where profiles are bound to eUICCs through a Secure Channel Protocol Session that can be established at appropriate times. The binding is not rigidly enforced at download but can be dynamically activated when needed. The profile manager can control when and how profiles are bound to specific eUICCs, allowing for dynamic profile management while maintaining security. This enables scenarios where profiles can be downloaded to multiple eUICCs temporarily but become firmly bound when activated, preventing cloning while maintaining management flexibility.