Abstract:
Representative embodiments described herein set forth techniques for optimizing large-scale deliveries of electronic Subscriber Identity Modules (eSIMs) to mobile devices. Specifically, instead of generating and assigning eSIMs when mobile devices are being activated—which can require significant processing overhead—eSIMs are pre-generated with a basic set of information, and are later-assigned to the mobile devices when they are activated. This can provide considerable benefits over conventional approaches that involve generating and assigning eSIMs during mobile device activation, especially when new mobile devices (e.g., smartphones, tablets, etc.) are being launched and a large number of eSIM assignment requests are to be fulfilled in an efficient manner.
Abstract:
Disclosed herein are different techniques for enabling a mobile device to dynamically support different authentication algorithms. A first technique involves configuring an eUICC included in the mobile device to implement various authentication algorithms that are utilized by MNOs (e.g., MNOs with which the mobile device can interact). Specifically, this technique involves the eUICC storing executable code for each of the various authentication algorithms. According to this technique, the eUICC is configured to manage at least one eSIM, where the eSIM includes (i) an identifier that corresponds to one of the various authentication algorithms implemented by the eUICC, and (ii) authentication parameters that are compatible with the authentication algorithm. A second technique involves configuring the eUICC to interface with an eSIM to extract (i) executable code for an authentication algorithm used by an MNO that corresponds to the eSIM, and (ii) authentication parameters that are compatible with the authentication algorithm.
Abstract:
Representative embodiments described herein set forth techniques for optimizing large-scale deliveries of electronic Subscriber Identity Modules (eSIMs) to mobile devices. Specifically, instead of generating and assigning eSIMs when mobile devices are being activated—which can require significant processing overhead—eSIMs are pre-generated with a basic set of information, and are later-assigned to the mobile devices when they are activated. This can provide considerable benefits over conventional approaches that involve generating and assigning eSIMs during mobile device activation, especially when new mobile devices (e.g., smartphones, tablets, etc.) are being launched and a large number of eSIM assignment requests are to be fulfilled in an efficient manner.
Abstract:
A method for establishing a secure communication channel between an off-card entity and an embedded Universal Integrated Circuit Card (eUICC) is provided. The method involves establishing symmetric keys that are ephemeral in scope. Specifically, an off-card entity, and each eUICC in a set of eUICCs managed by the off-card entity, possess long-term Public Key Infrastructure (PKI) information. When a secure communication channel is to be established between the off-card entity and an eUICC, the eUICC and the off-card entity can authenticate one another in accordance with the respectively-possessed PKI information (e.g., verifying public keys). After authentication, the off-card entity and the eUICC establish a shared session-based symmetric key for implementing the secure communication channel. Specifically, the shared session-based symmetric key is generated according to whether perfect or half forward security is desired. Once the shared session-based symmetric key is established, the off-card entity and the eUICC can securely communicate information.
Abstract:
Apparatus and methods for storing and controlling access control clients. In one embodiment, transmitting and receiving devices ensure that only one copy of an eSIM is active at any time. Specifically, each transferred eSIM is encrypted for the destination device; the eSIM from the source device is deleted, deactivated, or otherwise rendered unusable. Various aspects of network infrastructure are also described, including electronic Universal Integrated Circuit Card (eUICC) appliances, and mobile devices. Various scenarios for transfer of eSIMs are also disclosed.
Abstract:
Disclosed herein is a technique for securely provisioning access control entities (e.g., electronic Subscriber Identity Module (eSIM) components) to a user equipment (UE) device. In one embodiment, a UE device is assigned a unique key and an endorsement certificate that can be used to provide updates or new eSIMs to the UE device. The UE device can trust eSIM material delivered by an unknown third-party eSIM vendor, based on a secure certificate transmission with the unique key. In another aspect, an operating system (OS) is partitioned into various sandboxes. During operation, the UE device can activate and execute the OS in the sandbox corresponding to a current wireless network. Personalization packages received while connected to the network only apply to that sandbox. Similarly, when loading an eSIM, the OS need only load the list of software necessary for the current run-time environment. Unused software can be subsequently activated.
Abstract:
A method for preparing an eSIM for provisioning is provided. The method can include a provisioning server encrypting the eSIM with a symmetric key. The method can further include the provisioning server, after determining a target eUICC to which the eSIM is to be provisioned, encrypting the symmetric key with a key encryption key derived based at least in part on a private key associated with the provisioning server and a public key associated with the target eUICC. The method can additionally include the provisioning server formatting an eSIM package including the encrypted eSIM, the encrypted symmetric key, and a public key corresponding to the private key associated with the provisioning server. The method can also include the provisioning server sending the eSIM package to the target eUICC.
Abstract:
Methods and apparatus for user authentication and human intent verification of administrative operations for eSIMs of an eUICC included in a mobile device are disclosed. Certain administrative operations, such as import, modification, and/or export, of an eSIM and/or for an eUICCs firmware can require user authentication and/or human intent verification before execution of the administrative operations are performed or completed by the mobile device. A user of the mobile device provides information to link an external user account to an eSIM upon (or subsequent to) installation on the eUICC. User credentials, such as a user name and password, and/or information generated therefrom, can be used to authenticate the user with an external server. In response to successful user authentication, the administrative operations are performed. Human intent verification can also be performed in conjunction with user authentication to prevent malware from interfering with eSIM and/or eUICC functions of the mobile device.
Abstract:
Methods and apparatus for user authentication and human intent verification of administrative operations for eSIMs of an eUICC included in a mobile device are disclosed. Certain administrative operations, such as import, modification, and/or export, of an eSIM and/or for an eUICCs firmware can require user authentication and/or human intent verification before execution of the administrative operations are performed or completed by the mobile device. A user of the mobile device provides information to link an external user account to an eSIM upon (or subsequent to) installation on the eUICC. User credentials, such as a user name and password, and/or information generated therefrom, can be used to authenticate the user with an external server. In response to successful user authentication, the administrative operations are performed. Human intent verification can also be performed in conjunction with user authentication to prevent malware from interfering with eSIM and/or eUICC functions of the mobile device.
Abstract:
Apparatus and methods for controlling the distribution of electronic access clients to a device. In one embodiment, a virtualized Universal Integrated Circuit Card (UICC) can only load an access client such as an electronic Subscriber Identity Module (eSIM) according to an activation ticket. The activation ticket ensures that the virtualized UICC can only receive eSIMs from specific carriers (“carrier locking”). Unlike prior art methods which enforce carrier locking on a software application launched from a software chain of trust (which can be compromised), the present invention advantageously enforces carrier locking with the secure UICC hardware which has, for example, a secure code base.