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Method, system and device for broadband access network multicast control

A network access and access control technology, applied in the field of communication, can solve the problems that the CA system is not suitable for broadband network applications, unfavorable for operators to share media content, complex system implementation, etc., to prevent unauthorized or malicious access, strengthen group Broadcast security control, the effect of protecting investment

Inactive Publication Date: 2009-09-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, centralized control and authorization are carried out at the head end, and the system implementation is complex, which is likely to cause performance bottlenecks; generally, set-top boxes with embedded smart cards are required, which is not conducive to media content sharing between operators; and the CA system of the broadcast TV system is not suitable In broadband network applications

Method used

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  • Method, system and device for broadband access network multicast control
  • Method, system and device for broadband access network multicast control
  • Method, system and device for broadband access network multicast control

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Embodiment Construction

[0032] An embodiment of the present invention provides a broadband access network multicast control system, which can be applied to systems such as PON or common shared media, such as figure 1 As shown, it includes: access control subsystem 100 and user subsystems 101 , 102 , 103 . in,

[0033] The access control subsystem 100 includes: a key generator unit (Key Generator Unit, KGU) A101, a key word distribution unit (Key Distribution Unit, KDU) A102, a control authorization unit (Control Authorization Unit, CAU) A103, a data encryption unit ( Data Encryption Unit, DEU) A104, Data Sending Unit (Data Sending Unit, DSU) A105, Subscription Management Unit (Subscription Control Unit, SCU) A106, Data Receiving Unit (Data Receiving Unit, DRU) A107;

[0034] The user subsystem respectively includes: a terminal subscription unit (Client Subscription Unit, CSU) B101, a terminal decryption unit (Client Decryption Unit, CDU) B102, and a terminal key unit (ClientKey Unit, CKU) B103.

[...

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Abstract

The embodiment of the invention discloses a system, a method and equipment for broadband access network multicast control. The system comprises an access control subsystem and a user subsystem, wherein the access control subsystem is used for generating multicast encryption keywords, sending the multicast encryption keywords to the user subsystem, encrypting multicast frames sent to the user subsystem through the multicast encryption keywords after receiving a subscription request sent by the user subsystem and sending the encrypted multicast frames to the user subsystem; and the user subsystem is used for sending the subscription request to the access control subsystem to request the multicast frames and decrypting the received multicast frames encrypted by the access control subsystem according to the received multicast encryption keywords sent by the access control subsystem. In radio type (shared media) access applications, only authorized users of the invention can use multicast service data to prevent illegal users from using the multicast services, and improve the security of multicast authority control.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a broadband access network multicast control method, system and device. Background technique [0002] With the gradual broadbandization of the network, new services continue to emerge, especially IPTV (Internet TV) services are widely used. Since the IPTV service is generally a multicast (multicast) application mode, that is, the same data is shared by multiple people at the same time, such as different users watching the same TV channel / program, which brings great difficulties to the rights management of the network. [0003] Among DSL (Digital Subscriber Line, Digital Subscriber Line) users, multicast authority control is generally performed in a multicast authentication device at the edge of the network. The multicast authentication device includes an access node (AccessNode, AN). A user's multicast authority control list, such as a multicast access control lis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04L12/58H04L12/18
Inventor 阳振庭
Owner HUAWEI TECH CO LTD
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