FR2961364B1 - Procede et systeme de protection d'informations par un mot de controle - Google Patents

Procede et systeme de protection d'informations par un mot de controle

Info

Publication number
FR2961364B1
FR2961364B1 FR1054706A FR1054706A FR2961364B1 FR 2961364 B1 FR2961364 B1 FR 2961364B1 FR 1054706 A FR1054706 A FR 1054706A FR 1054706 A FR1054706 A FR 1054706A FR 2961364 B1 FR2961364 B1 FR 2961364B1
Authority
FR
France
Prior art keywords
control word
protecting information
protecting
information
word
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.)
Expired - Fee Related
Application number
FR1054706A
Other languages
English (en)
Other versions
FR2961364A1 (fr
Inventor
Alain Catrevaux
Laurent Dugois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Verimatrix France SAS
Original Assignee
Logiways France
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 Logiways France filed Critical Logiways France
Priority to FR1054706A priority Critical patent/FR2961364B1/fr
Priority to PCT/FR2011/051357 priority patent/WO2011157949A1/fr
Publication of FR2961364A1 publication Critical patent/FR2961364A1/fr
Application granted granted Critical
Publication of FR2961364B1 publication Critical patent/FR2961364B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
FR1054706A 2010-06-15 2010-06-15 Procede et systeme de protection d'informations par un mot de controle Expired - Fee Related FR2961364B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1054706A FR2961364B1 (fr) 2010-06-15 2010-06-15 Procede et systeme de protection d'informations par un mot de controle
PCT/FR2011/051357 WO2011157949A1 (fr) 2010-06-15 2011-06-15 Procédé et système de protection d'informations par un mot de contrôle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1054706A FR2961364B1 (fr) 2010-06-15 2010-06-15 Procede et systeme de protection d'informations par un mot de controle

Publications (2)

Publication Number Publication Date
FR2961364A1 FR2961364A1 (fr) 2011-12-16
FR2961364B1 true FR2961364B1 (fr) 2012-08-17

Family

ID=43033418

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1054706A Expired - Fee Related FR2961364B1 (fr) 2010-06-15 2010-06-15 Procede et systeme de protection d'informations par un mot de controle

Country Status (2)

Country Link
FR (1) FR2961364B1 (fr)
WO (1) WO2011157949A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755810B1 (fr) * 1996-11-14 1998-12-31 Thomson Multimedia Sa Procede de certification de donnees par embrouillage et systeme de certification utilisant un tel procede
ATE406046T1 (de) * 2003-02-10 2008-09-15 Koninkl Philips Electronics Nv Erzeugung verschlüsselter videoinformationen
FR2876858B1 (fr) * 2004-10-14 2006-12-01 Viaccess Sa Dispositif et procede de reception d'informations embrouillees, et unite de desembrouillage, systeme de transmission d'informations et emetteur adaptes pour ce dispositif
US8687806B2 (en) * 2008-02-07 2014-04-01 Motorola Mobility Llc Conditional access system employing constrained encryption keys
EP2129116A1 (fr) * 2008-05-29 2009-12-02 Nagravision S.A. Unité et méthode de traitement sécurisé de données audio/vidéo à accès contrôlé

Also Published As

Publication number Publication date
FR2961364A1 (fr) 2011-12-16
WO2011157949A1 (fr) 2011-12-22

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Legal Events

Date Code Title Description
TP Transmission of property

Owner name: VERIMATRIX FRANCE SAS, FR

Effective date: 20140422

ST Notification of lapse

Effective date: 20160229