APPARATUS AND METHOD FOR AUTOMATIC ROAMING OF TERMINAL IN DIGITAL CABLE BROADCASTING NETWORK

• US 20090156204A1
• Filed: 12/16/2008
• Published: 06/18/2009
• Est. Priority Date: 12/17/2007
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KWON, O Hyung, LEE, Soo In, KIM, Soon Choul
• Application Number:
  US12/335,609
• Publication Number:
  US 20090156204A1
• Time in Patent Office: Days
• US Class Current: 455/432.100
• CPC Class Codes: H04H 20/78 CATV [Community Antenna Television] systems
• CPC Class Codes: H04H 60/15 on receiving information
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/0884 by delegation of authentication, e.g. a proxy authenticates an entity to be authenticated on behalf of this entity vis-à-vis an authentication entity
• CPC Class Codes: H04N 21/25816 involving client authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/25875 involving end-user authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; arrangements for secret or secure communication including means for verifying the identity or authority of a user of the system H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/26613 for generating or managing keys in general key distribution for secret or secure communication involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] H04L9/083; network support of key management H04L63/06; key management for network security in communication control or processing H04W12/04
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/6118 involving cable transmission, e.g. using a cable modem
• CPC Class Codes: H04N 21/8193 dedicated tools, e.g. video decoder software or IPMP tool
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58

Abstract

An automatic roaming apparatus and method of a terminal in a digital cable broadcasting network is provided. The method includes: performing device authentication of the terminal when terminal authentication is requested by the terminal; verifying whether roaming authentication of the terminal having requested the terminal authentication is required; requesting subscriber authentication for a Provisioning Server (PS) in a home domain and receiving the subscriber authentication when the terminal exists in the home domain, when the roaming authentication of the terminal is verified as being required; transmitting a result of the device authentication and the subscriber authentication as a response to the terminal; and instructing an Integrated Personalization Server (IPS) to download a Conditional Access (CA) application to the terminal.

Claims

1. A method of supporting automatic roaming of a terminal in an Authentication Proxy (AP) server of a Downloadable Conditional Access System (DCAS), the method comprising:

performing device authentication of the terminal when terminal authentication is requested by the terminal;

verifying whether roaming authentication of the terminal having requested the terminal authentication is required;

requesting subscriber authentication for a Provisioning Server in a home domain and receiving the subscriber authentication when the terminal exists in the home domain, when the roaming authentication of the terminal is verified as being required;

transmitting a result of the device authentication and the subscriber authentication as a response to the terminal; and

instructing an Integrated Personalization Server (IPS) to download a Conditional Access (CA) application to the terminal.

2. The method of claim 1, wherein the verifying verifies whether a user profile is attached when requesting the terminal authentication, and determines that the roaming authentication is required when the user profile is attached.

3. The method of claim 2, wherein the user profile includes at least one of subscriber information, a home domain name, and a Multiple System Operator (MSO) name.

4. The method of claim 2, wherein the user profile includes token accounts for contents purchasing.

5. The method of claim 1, wherein, when the terminal does not exist in the home domain, the requesting and receiving requests the subscriber authentication for the home domain of the terminal, and receives a subscriber authentication result.

6. An automatic roaming method of a terminal in a digital cable broadcasting network, the method comprising:

verifying whether device authentication of the terminal is required when receiving a Security Announce message;

inspecting user profile information;

requesting terminal authentication for an AP server by attaching a user profile;

transmitting a terminal authentication request message including the user profile information to the AP server;

receiving a terminal authentication result from the AP server; and

downloading a CA application from an IPS.

7. The method of claim 6, wherein the user profile includes at least one of subscriber information, a home domain name, and an MSO name.

8. The method of claim 6, wherein the user profile includes token accounts for contents purchasing.