Profile handling of a communications device

1. A method for profile handling of a communications device, the method being performed by a local profile assistant of a proxy device, the method comprising:

obtaining an indication of handling a profile of the communications device;

establishing a first secure communications link with a local profile assistant of the communications device;

establishing a second secure communications link with a subscription management entity of the communications device;

receiving information pertaining to handling of the profile by the local profile assistant of the communications device, the information being received from the subscription management entity over the second secure communications link;

providing the information to the local profile assistant of the communications device over the first secure communications link;

providing a PrepareDownloadRequest message to the communications device, wherein the PrepareDownloadRequest message comprises data for preparing profile download to the communications device but lacks transaction ID; and

providing an InstallBPP message to the communications device, wherein the InstallBPP message comprises the profile but lacks transaction ID.

2. The method according to claim 1 , further comprising:

receiving an AuthenticateServerResponse message from the communications device pertaining to authentication of the subscription management entity at the communications device, wherein the AuthenticateServerResponse message lacks iUICC certificate or eUICC certificate, EUM certificate, eUICC/iUICC information, transaction ID, server address, server challenge, and device information;

providing an AuthenticateClient message to the subscription management entity pertaining to authentication of the communications device at the subscription management entity, wherein the AuthenticateClient message comprises the iUICC certificate, the EUM certificate, eUICC/iUICC information, transaction ID, server address, server challenge, and device information.

3. The method according to claim 1 , further comprising:

receiving a PrepareDownloadResponse message from the communications device pertaining to successful preparation of download of the profile to the communications device, wherein the PrepareDownloadResponse message lacks transaction ID and hash of a confirmation code; and

providing a GetBoundProfilePackage message to the subscription management entity pertaining to retrieving a Bound Profile Package from the subscription management entity, wherein the GetBoundProfilePackage message comprises the transaction ID and the hash of the confirmation code.

4. The method according to claim 1 , further comprising:

receiving a first status message from the communications device over the first secure communications link relating to status of the information provided to the local profile assistant of the communications device; and

providing a second status message to the subscription management entity over the second secure communications link in response thereto, wherein content of the second status message being based on the status of the information provided to the local profile assistant of the communications device.

5. The method according to claim 4 , wherein the first status message is a ProfilelnstallationResult message, wherein the ProfilelnstallationResult message lacks transaction ID, profile management operation information, notification address, and object identifier of the subscription management entity, and wherein the second status message is a HandleNotification message, wherein the HandleNotification message comprises the transaction ID, profile management operation information, notification address, and object identifier of the subscription management entity.

6. The method according to claim 1 , wherein establishing the second secure communications link comprises providing a certificate from the proxy device to the subscription management entity.

7. The method according to claim 1 , wherein establishing the second secure communications link comprises digitally signing an ephemeral elliptic curve public key to obtain a signature, and providing a signature from the proxy device to the communications device.

8. A proxy device for profile handling of a communications device, the proxy device comprising processing circuitry, the processing circuitry being configured to cause a local profile assistant of the proxy device to:

obtain an indication of handling a profile of the communications device;

establish a first secure communications link with a local profile assistant of the communications device;

establish a second secure communications link with a subscription management entity of the communications device;

receive information pertaining to handling of the profile by the local profile assistant of the communications device, the information being received from the subscription management entity over the second secure communications link;

provide the information to the local profile assistant of the communications device over the first secure communications link;

providing a PrepareDownloadRequest message to the communications device, wherein the PrepareDownloadRequest message comprises data for preparing profile download to the communications device but lacks transaction ID; and

provide an InstallBPP message to the communications device, wherein the InstallBPP message comprises the profile but lacks transaction ID.