Mobile IPTV service system using downloadable conditional access system and method thereof

摘要

An apparatus and method associated with an Internet Protocol Television (IPTV) service in a mobile environment are provided. A streaming server may provide a mobile terminal with a mobile certificate and an encryption key. In response to a content request received from the mobile terminal, the streaming server may provide the mobile terminal with encrypted content and a Downloadable Conditional Access System (DCAS) code. The mobile terminal may decrypt the encrypted content using the encryption key and the DCAS code, and may play back the decrypted content.

主权项

1. A method by which a service providing apparatus provides content to a mobile terminal, the method comprising:
receiving a user authentication request from the mobile terminal; transmitting the user authentication request to an authentication server; receiving, from the authentication server, user authentication information as a response to the user authentication request; generating a mobile certificate and an encryption key based on the user authentication information; transmitting, to the mobile terminal, the mobile certificate and the encryption key; receiving, from the mobile terminal, the mobile certificate and a content request; generating a Downloadable Conditional Access System (DCAS) code, based on the mobile certificate; transmitting the DCAS code to the mobile terminal; and transmitting, to the mobile terminal, encrypted content corresponding to the content request, wherein the encrypted content is decrypted by the encryption key and the DCAS code, and wherein the authentication server is operated by a Trusted Third Party (TTP), instead of an operator of the service providing apparatus.