WO2006045014A3 - Application of asymmetric digital signature scheme to broadcast system - Google Patents

Application of asymmetric digital signature scheme to broadcast system Download PDF

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Publication number
WO2006045014A3
WO2006045014A3 PCT/US2005/037732 US2005037732W WO2006045014A3 WO 2006045014 A3 WO2006045014 A3 WO 2006045014A3 US 2005037732 W US2005037732 W US 2005037732W WO 2006045014 A3 WO2006045014 A3 WO 2006045014A3
Authority
WO
WIPO (PCT)
Prior art keywords
digital signature
broadcast
signature scheme
control system
authorization data
Prior art date
Application number
PCT/US2005/037732
Other languages
French (fr)
Other versions
WO2006045014A2 (en
Inventor
John Kevin Markey
Original Assignee
John Kevin Markey
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by John Kevin Markey filed Critical John Kevin Markey
Publication of WO2006045014A2 publication Critical patent/WO2006045014A2/en
Publication of WO2006045014A3 publication Critical patent/WO2006045014A3/en

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

Methods and devices that implement asymmetric cryptographic system based digital signatures to the management of message tampering and assurance of message integrity in an access control system of digital broadcast services. The receiver terminal authorization data messages (124) from the broadcast subscriber control system (110) are digitally signed by a digital signature scheme (114) utilizing a broadcast private-public digital signature scheme key pair. The receiver terminals (115) of the broadcast network (118) receive these authorization data messages (124). The digital signature of each authorization data message is tested for authenticity with the public key of the broadcast subscriber control system (110).
PCT/US2005/037732 2004-10-20 2005-10-20 Application of asymmetric digital signature scheme to broadcast system WO2006045014A2 (en)

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 WO2006045014A2 (en) 2006-04-27
WO2006045014A3 true WO2006045014A3 (en) 2007-05-18

Family

ID=36203698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/037732 WO2006045014A2 (en) 2004-10-20 2005-10-20 Application of asymmetric digital signature scheme to broadcast system

Country Status (1)

Country Link
WO (1) WO2006045014A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2461534A1 (en) * 2010-12-01 2012-06-06 Irdeto B.V. Control word protection

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO2006045014A2 (en) 2006-04-27

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