WO2006045014A2 - Application d'un schema de signatures numeriques asymetrique a un systeme de diffusion - Google Patents
Application d'un schema de signatures numeriques asymetrique a un systeme de diffusion Download PDFInfo
- Publication number
- WO2006045014A2 WO2006045014A2 PCT/US2005/037732 US2005037732W WO2006045014A2 WO 2006045014 A2 WO2006045014 A2 WO 2006045014A2 US 2005037732 W US2005037732 W US 2005037732W WO 2006045014 A2 WO2006045014 A2 WO 2006045014A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- digital signature
- receiver terminal
- data message
- authorization
- asymmetric digital
- Prior art date
Links
Classifications
-
- 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]
-
- 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
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
Abstract
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62049504P | 2004-10-20 | 2004-10-20 | |
US60/620,495 | 2004-10-20 | ||
US25334605A | 2005-10-19 | 2005-10-19 | |
US11/253,346 | 2005-10-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006045014A2 true WO2006045014A2 (fr) | 2006-04-27 |
WO2006045014A3 WO2006045014A3 (fr) | 2007-05-18 |
Family
ID=36203698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/037732 WO2006045014A2 (fr) | 2004-10-20 | 2005-10-20 | Application d'un schema de signatures numeriques asymetrique a un systeme de diffusion |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2006045014A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2461539A1 (fr) * | 2010-12-01 | 2012-06-06 | Irdeto Corporate B.V. | Protection de mot de contrôle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6088798A (en) * | 1996-09-27 | 2000-07-11 | Kabushiki Kaisha Toshiba | Digital signature method using an elliptic curve, a digital signature system, and a program storage medium having the digital signature method stored therein |
US20020170053A1 (en) * | 2000-10-26 | 2002-11-14 | General Instrument, Inc. | ECM and EMM distribution for multimedia multicast content |
US6516412B2 (en) * | 1995-04-03 | 2003-02-04 | Scientific-Atlanta, Inc. | Authorization of services in a conditional access system |
-
2005
- 2005-10-20 WO PCT/US2005/037732 patent/WO2006045014A2/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6516412B2 (en) * | 1995-04-03 | 2003-02-04 | Scientific-Atlanta, Inc. | Authorization of services in a conditional access system |
US6088798A (en) * | 1996-09-27 | 2000-07-11 | Kabushiki Kaisha Toshiba | Digital signature method using an elliptic curve, a digital signature system, and a program storage medium having the digital signature method stored therein |
US20020170053A1 (en) * | 2000-10-26 | 2002-11-14 | General Instrument, Inc. | ECM and EMM distribution for multimedia multicast content |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2461539A1 (fr) * | 2010-12-01 | 2012-06-06 | Irdeto Corporate B.V. | Protection de mot de contrôle |
WO2012072707A1 (fr) * | 2010-12-01 | 2012-06-07 | Irdeto Corporate B.V. | Protection de mot de commande |
CN103354998A (zh) * | 2010-12-01 | 2013-10-16 | 耶德托公司 | 控制字保护 |
US9270465B2 (en) | 2010-12-01 | 2016-02-23 | Irdeto B.V. | Control word protection |
Also Published As
Publication number | Publication date |
---|---|
WO2006045014A3 (fr) | 2007-05-18 |
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