METHOD FOR PROCESSING DATA AND IPTV RECEIVING DEVICE

• US 20100262991A1
• Filed: 10/30/2008
• Published: 10/14/2010
• Est. Priority Date: 11/01/2007
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cho, Sung Hyun, Park, Il Gon, Chung, Min Gyu, Kiran, Kumar K., Pak, Koo Yong
• Application Number:
  US12/740,697
• Publication Number:
  US 20100262991A1
• Time in Patent Office: Days
• US Class Current: 725/31
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04N 21/2347 involving video stream encryption
• 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 21/4147 PVR [Personal Video Recorder] H04N5/76 takes precedence ; arrangements for broadcast with accumulation-type receivers H04H20/40
• 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 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• 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

Disclosed are a data processing method and an IPTV receiving device. The data processing method includes a data processing method of a DRM component of an IPTV receiving device. A packet to be decrypted and its associated information are received from a server. The packet is decrypted by performing any one of its own decryption and decryption using external hardware. In the case in which the its own decryption is performed, the packet is received and decrypted using internal software. In the case in which the decryption using the external hardware is performed, an external trusted hardware component within the IPTV receiving device is exchanged with a key.

Claims

1. A data processing method employing a DRM component of an IPTV receiving device, the data processing method comprising the steps of:

receiving information associated with a packet to be decrypted from a server; and

decrypting the packet by performing any one of its own decryption and decryption using external hardware,

wherein in the case in which the its own decryption is performed, the DRM component receives the packet and decrypts the packet using internal software, and in the case in which the decryption using the external hardware is performed, the DRM component exchanges a key with an external trusted hardware component within the IPTV receiving device.

2. The data processing method of claim 1, further comprising the steps of:

configuring reception and filtering of a DRM message, which are performed by an external component within the IPTV receiving device; and

receiving DRM parameters from the external component.

3. The data processing method of claim 1, further comprising the step of communicating with a DRM server in order to exchange a key and rights necessary for the decryption.

4. The data processing method of claim 1, further comprising the steps of:

a DRM server authenticating and provisioning the DRM component; and

initializing persistent values necessary for an operation and safely loading the persistent values.

5. The data processing method of claim 1, further comprising the step of determining whether the its own decryption or the decryption using the external hardware will be performed based on the received information.

6. The data processing method of claim 5, wherein the determination step is performed by determining whether internal software capable of performing the decryption of the packet or based on specification by the received information.

7. The data processing method of claim 1, further comprising the step of, in the case in which there are no appropriate rights for decrypting the packet, informing this fact of the IPTV receiving device through a specific message.

8. An IPTV receiving device, comprising:

hardware component; and

a DRM component receiving information associated with a packet to be decrypted from a server, and decrypting the packet by performing any one of its own decryption and decryption using external hardware,

wherein in the case in which the its own decryption is performed, the DRM component receives the packet and decrypts the packet using internal software, and in the case in which the decryption using the external hardware is performed, the DRM component exchanges a key with the hardware component.

9. The IPTV receiving device of claim 8, further comprising a filtering component for receiving and filtering a DRM message,

wherein the DRM component configures reception and filtering of the DRM message, which are performed by the filtering component, and receives DRM parameters from the filtering component.

10. The IPTV receiving device of claim 8, wherein the DRM component determines whether the its own decryption or the decryption using the external hardware will be performed based on the received information.