Patent ID: 7941656

Claim:
A card device comprising: an identification unit for determining an effective mobile device identifier of a mobile device, wherein the effective mobile device identifier is based at least in part on the result of a process performed by the card device, and is based at least in part on an assigned mobile device identifier, and further wherein said assigned mobile device identifier is an identifier assigned to the mobile device prior to the mobile device being issued to a mobile device user, and still further wherein said assigned mobile device identifier uniquely identifies the mobile device; and an application request unit for transmitting the effective mobile device identifier, wherein said card device is for loading application identifiers to the mobile device; and said card device is insertable into the mobile device, and wherein the identification unit is further adapted to request any one of (a) said assigned mobile device identifier from a mobile control unit of the mobile device in response to a request for the effective mobile device identifier, the card device having processed the assigned mobile device identifier to create the effective mobile device identifier; (b) said assigned mobile device identifier from said mobile control unit of the mobile device during an initialization procedure; and (c) said assigned mobile device identifier from said mobile control unit of the mobile device in response to a request for the effective mobile device identifier; wherein the effective mobile device identifier comprises one or more of an assigned mobile device identifier cryptogram and an assigned card device identifier cryptogram, the assigned mobile device identifier cryptogram comprising the result of applying a cryptographic process to said assigned mobile device identifier, and the assigned card device identifier cryptogram comprising the result of applying a cryptographic process to an assigned card device identifier assigned to the card device prior to being issued to a card device user or being configured with the mobile device.