Method, system and terminal apparatus for enabling content to be reproduced in multiple terminals
First Claim
1. A method for reproducing equal content in at least one terminal by generally authenticating a service provider, a terminal and a User Identity Module (UIM), the method comprising the steps of:
- performing, by the terminal and the UIM, mutual authentication through the service provider, thereby acquiring an encryption key shared between the terminal and the UIM;
after the authentication, performing by the UIM registration to the service provider through the terminal;
if the registration is completed, transferring by the UIM a service join request message to the service provider through the terminal, thereby joining a service; and
if encrypted content is transferred from the terminal to the service provider after joining the service, decrypting and reproducing the encrypted content utilizing the shared encryption key.
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Accused Products
Abstract
Disclosed are a method, a system and a terminal apparatus for reproducing content purchased by a user in a plurality of terminals. To this end, a Right Object (RO) is received through an authentication process for content and a service registration process, and is stored in a User Identity Module (UIM). If the UIM is used, a user can use corresponding content in a plurality of terminals through one-time registration. Accordingly, the user having completed the registration can reproduce content in multiple terminals owned by the user based on user identification by means of a license acquired through the registration regardless of a specific terminal, instead of reproducing the content only in a single terminal to which a license has been bound.
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Citations
19 Claims
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1. A method for reproducing equal content in at least one terminal by generally authenticating a service provider, a terminal and a User Identity Module (UIM), the method comprising the steps of:
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performing, by the terminal and the UIM, mutual authentication through the service provider, thereby acquiring an encryption key shared between the terminal and the UIM;
after the authentication, performing by the UIM registration to the service provider through the terminal;
if the registration is completed, transferring by the UIM a service join request message to the service provider through the terminal, thereby joining a service; and
if encrypted content is transferred from the terminal to the service provider after joining the service, decrypting and reproducing the encrypted content utilizing the shared encryption key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for reproducing equal content in at least one terminal by generally authenticating a service provider, a terminal and a User Identity Module (UIM), the system comprising:
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the service provider for performing authentication for the terminal and the UIM, performing a registration process for allowing the UIM to be used in said at least one terminal, reporting results for a service join request from the UIM through the terminal, and encrypting and providing corresponding content in service joining;
the terminal for transferring a message exchanged between the service provider and the UIM, acquiring a shared encryption key with the UIM through the authentication, and decrypting and reproducing the encrypted content, which is provided according to the service joining, utilizing the shared encryption key; and
the UIM for acquiring both the shared encryption key with the terminal and a shared session key with the service provider through the authentication, and providing the terminal with an encryption key for decrypting the encrypted content. - View Dependent Claims (15)
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16. A terminal apparatus for reproducing equal content in at least one terminal by generally authenticating a service provider, a terminal and a User Identity Module (UIM), the terminal apparatus comprising:
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a Digital Rights Management (DRM) module for managing registration, service joining, and use of content;
a communication module for receiving a message from the service provider, and transmitting a response message to the service provider in response to reception of the message;
an interface module for transferring the message received through the communication module to the UIM, and receiving a response message corresponding to the transferred message from the UIM; and
an authentication module for acquiring a shared encryption key with the UIM by performing authentication for the UIM, and decrypting encrypted content, which is provided according to the service joining, utilizing the shared encryption key. - View Dependent Claims (17, 18, 19)
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Specification