MX2013005741A - Metodo y sistema para acceso condicional a un contenido digital, terminal asociada y dispositivo de suscriptor. - Google Patents

Metodo y sistema para acceso condicional a un contenido digital, terminal asociada y dispositivo de suscriptor.

Info

Publication number
MX2013005741A
MX2013005741A MX2013005741A MX2013005741A MX2013005741A MX 2013005741 A MX2013005741 A MX 2013005741A MX 2013005741 A MX2013005741 A MX 2013005741A MX 2013005741 A MX2013005741 A MX 2013005741A MX 2013005741 A MX2013005741 A MX 2013005741A
Authority
MX
Mexico
Prior art keywords
conditional access
digital content
subscriber device
associated terminal
control word
Prior art date
Application number
MX2013005741A
Other languages
English (en)
Inventor
Aline Gouget
Pascal Paillier
Cecile Delerablee
Original Assignee
Cryptoexperts Sas
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 Cryptoexperts Sas filed Critical Cryptoexperts Sas
Publication of MX2013005741A publication Critical patent/MX2013005741A/es

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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • 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
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H04L9/3073—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La invención se relaciona con un método seguro para transmitir una palabra de control entre un servidor (3) y una pluralidad de entidades de procesamiento (Ea, Eb, Em) de manera que produzcan y utilicen respectivamente la palabra de control. De manera preferible, el método se aplica al campo de métodos y sistemas de acceso condicional para evitar el uso fraudulento de claves de descifrado comprometidas que resultan de una coalición de piratas informáticos.
MX2013005741A 2010-11-22 2011-11-21 Metodo y sistema para acceso condicional a un contenido digital, terminal asociada y dispositivo de suscriptor. MX2013005741A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1059609A FR2967851B1 (fr) 2010-11-22 2010-11-22 Procede et systeme d'acces conditionnel a un contenu numerique, terminal et dispositif d'abonne associes
PCT/FR2011/052712 WO2012069747A1 (fr) 2010-11-22 2011-11-21 Procede et systeme d'acces conditionnel a un contenu numerique, terminal et dispositif d'abonne associes

Publications (1)

Publication Number Publication Date
MX2013005741A true MX2013005741A (es) 2013-12-06

Family

ID=44075686

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2013005741A MX2013005741A (es) 2010-11-22 2011-11-21 Metodo y sistema para acceso condicional a un contenido digital, terminal asociada y dispositivo de suscriptor.

Country Status (10)

Country Link
US (1) US9749129B2 (es)
EP (1) EP2643943B1 (es)
JP (1) JP5602955B2 (es)
CN (1) CN103339896B (es)
BR (1) BR112013015281B1 (es)
ES (1) ES2897685T3 (es)
FR (1) FR2967851B1 (es)
MX (1) MX2013005741A (es)
PT (1) PT2643943T (es)
WO (1) WO2012069747A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958103B1 (fr) * 2010-03-23 2012-08-17 Cryptoexperts Sas Procede pour identifier un dispositif mis en oeuvre par un terminal pirate et dispositif associe
JP6488221B2 (ja) 2015-03-30 2019-03-20 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 再生方法及び再生装置
US11251954B2 (en) 2017-05-10 2022-02-15 B. G. Negev Technologies And Applications Ltd., At Ben-Gurion University Method and system for performing broadcast encryption with revocation capability
WO2018207187A1 (en) * 2017-05-10 2018-11-15 B. G. Negev Technologies And Applications Ltd., At Ben-Gurion University Method and system for performing broadcast encryption with revocation capability
US11323255B2 (en) * 2019-08-01 2022-05-03 X-Logos, LLC Methods and systems for encryption and homomorphic encryption systems using Geometric Algebra and Hensel codes
WO2022035909A1 (en) 2020-08-10 2022-02-17 X-Logos, LLC Methods for somewhat homomorphic encryption and key updates based on geometric algebra for distributed ledger technology
US11683151B2 (en) 2020-09-17 2023-06-20 Algemetric, Inc. Methods and systems for distributed computation within a fully homomorphic encryption scheme using p-adic numbers

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US7565546B2 (en) * 1999-03-30 2009-07-21 Sony Corporation System, method and apparatus for secure digital content transmission
US7602914B2 (en) * 2004-08-18 2009-10-13 Scientific-Atlanta, Inc. Utilization of encrypted hard drive content by one DVR set-top box when recorded by another
EP2022207B1 (fr) * 2006-05-31 2018-10-10 Orange Procédé cryptographique à chiffrement et révocation intégrés, système, dispositif et programmes pour la mise en oeuvre du procédé
US8385545B2 (en) * 2007-07-27 2013-02-26 Howard G. Pinder Secure content key distribution using multiple distinct methods
EP2068490A1 (en) * 2007-12-05 2009-06-10 Nagravision S.A. Method to generate a private key in a Boneh-Franklin scheme
JP5365072B2 (ja) * 2007-12-11 2013-12-11 ソニー株式会社 鍵生成装置、暗号化装置、受信装置、鍵生成方法、暗号化方法、鍵処理方法およびプログラム
JP2009171016A (ja) * 2008-01-11 2009-07-30 Nippon Hoso Kyokai <Nhk> 暗号化情報生成装置及びそのプログラム、配信用コンテンツ生成装置及びそのプログラム、並びに、コンテンツ復号装置及びそのプログラム
EP2225848B1 (en) * 2008-03-10 2012-08-15 NDS Limited Key distribution system
EP2207340A1 (en) * 2009-01-12 2010-07-14 Thomson Licensing Method and device for reception of control words, and device for transmission thereof
WO2010123112A1 (ja) * 2009-04-24 2010-10-28 日本電信電話株式会社 暗号化装置、復号装置、暗号化方法、復号方法、セキュリティ方法、プログラム及び記録媒体
FR2969439B1 (fr) * 2010-12-17 2018-06-22 Cryptoexperts Sas Procede et systeme d'acces conditionnel a un contenu numerique, terminal et dispositif d'abonne associes

Also Published As

Publication number Publication date
FR2967851B1 (fr) 2018-05-18
CN103339896B (zh) 2017-06-23
US9749129B2 (en) 2017-08-29
PT2643943T (pt) 2021-11-17
JP5602955B2 (ja) 2014-10-08
JP2014502102A (ja) 2014-01-23
WO2012069747A1 (fr) 2012-05-31
ES2897685T3 (es) 2022-03-02
EP2643943B1 (fr) 2021-08-18
EP2643943A1 (fr) 2013-10-02
BR112013015281B1 (pt) 2022-03-29
FR2967851A1 (fr) 2012-05-25
US20130308776A1 (en) 2013-11-21
BR112013015281A2 (pt) 2018-06-26
CN103339896A (zh) 2013-10-02

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