Patent ID: 8683610
Filing Date: 2014-03-25
Classification: G06F,H04L

Abstract:
1. A terminal for managing digital rights of a memory card which is inserted into the terminal and has a processor and a memory, the digital rights allowing the terminal to access digital contents, the terminal comprising: a processor configured to manage a digital rights and to: exchange information with the memory card, wherein the information includes a terminal ID and a memory card ID; perform a mutual authentication procedure with the memory card; receive a trigger message which indicates to the terminal that a digital rights for the memory card is prepared in a specific server or device, wherein the trigger message includes parameters indicating the memory card and indicating the specific server or device; if a parameter included in the trigger message does not indicate the memory card, perform a procedure for obtaining a digital rights for the terminal; and if a parameter included in the trigger message indicates the memory card, perform a procedure for requesting a digital rights for the memory card on behalf of the memory card to the specific server or device, wherein the procedure for requesting the digital rights for the memory card includes: generating, on behalf of the memory card, a digital rights request message for requesting a digital rights for the memory card from the specific server or device, the digital rights request message including not the terminal ID, but the memory card ID; transmitting, to the memory card, a signature request for requesting a signature of the memory card including the generated digital rights request message; receiving, from the memory card, a signature response including a signature of the memory card; transmitting, to the specific server or device, the generated digital rights request message and the signature of the memory card; receiving, from the specific server or device, a digital rights response message which indicates the memory card ID and a protected digital rights, wherein the protected digital rights is cryptographically bound to the memory card such that the terminal without a key of the memory card is prohibited from decrypting the protected digital rights cryptographically bound to the memory card; and transmitting, to the memory card, the information about the protected digital rights to be installed in the memory card.