CN1476724A - 有线电视网的加密系统 - Google Patents
有线电视网的加密系统 Download PDFInfo
- Publication number
- CN1476724A CN1476724A CNA018195415A CN01819541A CN1476724A CN 1476724 A CN1476724 A CN 1476724A CN A018195415 A CNA018195415 A CN A018195415A CN 01819541 A CN01819541 A CN 01819541A CN 1476724 A CN1476724 A CN 1476724A
- Authority
- CN
- China
- Prior art keywords
- encryption
- memory
- algorithm
- encryption system
- conditional access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006870 function Effects 0.000 claims abstract description 39
- 238000012545 processing Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 238000000682 scanning probe acoustic microscopy Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 4
- 230000001143 conditioned effect Effects 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 238000013475 authorization Methods 0.000 description 8
- 238000013478 data encryption standard Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- GWAOOGWHPITOEY-UHFFFAOYSA-N 1,5,2,4-dioxadithiane 2,2,4,4-tetraoxide Chemical compound O=S1(=O)CS(=O)(=O)OCO1 GWAOOGWHPITOEY-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
- H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
- H04N21/42615—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific demultiplexing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
- H04N21/42623—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific decryption arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Storage Device Security (AREA)
Abstract
本发明提供一种加密系统,包括:前端系统、网络系统、用户终端系统,所述前端系统包括条件接入服务器、复用器,所述用户终端系统包括码流接收器、输出装置,所述前端系统还包括加扰器,所述加扰器由数字信号处理器和存储器构成,根据条件接入服务器的指令,通过调用存储器中的相应程序,来完成加扰功能;所述用户终端系统包括由数字信号处理器和存储器构成的解复用器、解扰器和解码器,其解复用、解扰、解码的功能通过数字信号处理器调用存储器中的相应程序来完成。本发明能够方便地进行更换加扰算法操作,而不必更换加扰芯片与解扰芯片,并且可不必更换加密系统的硬件部分而实现功能的扩展与升级,满足开放性、灵活性的需求。
Description
PCT国内申请,说明书已公开。
Claims (1)
- PCT国内申请,权利要求书已公开。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA018195415A CN1476724A (zh) | 2000-11-28 | 2001-11-28 | 有线电视网的加密系统 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00132565.5 | 2000-11-28 | ||
CN 00132565 CN1355654A (zh) | 2000-11-28 | 2000-11-28 | 有线电视网的加密系统 |
CNA018195415A CN1476724A (zh) | 2000-11-28 | 2001-11-28 | 有线电视网的加密系统 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1476724A true CN1476724A (zh) | 2004-02-18 |
Family
ID=4595239
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00132565 Pending CN1355654A (zh) | 2000-11-28 | 2000-11-28 | 有线电视网的加密系统 |
CNA018195415A Pending CN1476724A (zh) | 2000-11-28 | 2001-11-28 | 有线电视网的加密系统 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00132565 Pending CN1355654A (zh) | 2000-11-28 | 2000-11-28 | 有线电视网的加密系统 |
Country Status (3)
Country | Link |
---|---|
CN (2) | CN1355654A (zh) |
AU (1) | AU2002221506A1 (zh) |
WO (1) | WO2002045428A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016090990A1 (zh) * | 2014-12-08 | 2016-06-16 | 深圳Tcl数字技术有限公司 | 加扰传送流的解扰方法及系统 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7215770B2 (en) * | 2002-01-02 | 2007-05-08 | Sony Corporation | System and method for partially encrypted multimedia stream |
CN101009549B (zh) * | 2006-01-26 | 2010-07-14 | 中国科学院计算技术研究所 | 用于数字版权管理的解码装置 |
CN100584008C (zh) * | 2006-05-09 | 2010-01-20 | 中国科学院研究生院 | 有扰、无扰传输流实时认证装置及带有该装置的电视设备 |
US7962638B2 (en) * | 2007-03-26 | 2011-06-14 | International Business Machines Corporation | Data stream filters and plug-ins for storage managers |
CN101056393B (zh) * | 2007-04-20 | 2010-06-16 | 中兴通讯股份有限公司 | 数据解扰方法和系统 |
CN100562098C (zh) * | 2008-01-03 | 2009-11-18 | 济南市泰信电子有限责任公司 | 数字电视条件接收系统及其处理流程 |
CN105512573B (zh) * | 2015-11-24 | 2019-02-05 | 深圳国微技术有限公司 | 一种抗攻击的仲裁器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1134645A (zh) * | 1995-04-25 | 1996-10-30 | 冯钧 | 有线电视的加密方法 |
AU5781599A (en) * | 1998-08-23 | 2000-03-14 | Open Entertainment, Inc. | Transaction system for transporting media files from content provider sources tohome entertainment devices |
-
2000
- 2000-11-28 CN CN 00132565 patent/CN1355654A/zh active Pending
-
2001
- 2001-11-28 AU AU2002221506A patent/AU2002221506A1/en not_active Abandoned
- 2001-11-28 CN CNA018195415A patent/CN1476724A/zh active Pending
- 2001-11-28 WO PCT/CN2001/001585 patent/WO2002045428A1/zh not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016090990A1 (zh) * | 2014-12-08 | 2016-06-16 | 深圳Tcl数字技术有限公司 | 加扰传送流的解扰方法及系统 |
CN105744354A (zh) * | 2014-12-08 | 2016-07-06 | 深圳Tcl数字技术有限公司 | 加扰传送流的解扰方法及系统 |
CN105744354B (zh) * | 2014-12-08 | 2018-11-16 | 深圳Tcl数字技术有限公司 | 加扰传送流的解扰方法及系统 |
Also Published As
Publication number | Publication date |
---|---|
AU2002221506A1 (en) | 2002-06-11 |
WO2002045428A1 (fr) | 2002-06-06 |
CN1355654A (zh) | 2002-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |