BR0311813A - Método e receptor para troca segura de dados entre dois dispositivos - Google Patents

Método e receptor para troca segura de dados entre dois dispositivos

Info

Publication number
BR0311813A
BR0311813A BR0311813-4A BR0311813A BR0311813A BR 0311813 A BR0311813 A BR 0311813A BR 0311813 A BR0311813 A BR 0311813A BR 0311813 A BR0311813 A BR 0311813A
Authority
BR
Brazil
Prior art keywords
key
devices
data exchange
receiver
pakv
Prior art date
Application number
BR0311813-4A
Other languages
English (en)
Other versions
BRPI0311813B1 (pt
Inventor
Olivier Brique
Christophe Nicolas
Marco Sasselli
Original Assignee
Nagracard Sa
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 Nagracard Sa filed Critical Nagracard Sa
Publication of BR0311813A publication Critical patent/BR0311813A/pt
Publication of BRPI0311813B1 publication Critical patent/BRPI0311813B1/pt

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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/107—License processing; Key processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/44—Program or device authentication
    • G06F21/445—Program or device authentication by mutual authentication, e.g. between devices or programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/602—Providing cryptographic facilities or services
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/061—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key exchange, e.g. in peer-to-peer networks
    • 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
    • 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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0841—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols
    • H04L9/0844—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols with user authentication or key authentication, e.g. ElGamal, MTI, MQV-Menezes-Qu-Vanstone protocol or Diffie-Hellman protocols using implicitly-certified keys
    • 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
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2129—Authenticate client device independently of the user
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2153—Using hardware token as a secondary aspect

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Technology Law (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

"MéTODO E RECEPTOR PARA TROCA SEGURA DE DADOS ENTRE DOIS DISPOSITIVOS". Localmente conectados um ao outro. Em uma personificação preferida, no primeiro dispositivo (10) está um módulo de segurança contendo uma primeira chave codificadora, mencionada a chave privada (PAKV) de um par de chaves assimétricas codificadoras. O segundo dispositivo é um receptor (11) compreendendo ao menos uma segunda chave codificadora, dita chave pública (PAKB) do mencionado par de chaves codificadas assimétricas. Além disso, cada um dos dispositivos compreende uma chave simétrica (13). O primeiro dispositivo (10) gera um primeiro número randómico (A), que é codificado pela mencionada chave privada (PAKV), então transmitida ao segundo dispositivo (11) no qual está decodificado por meios de chave pública (PAKB). O segundo dispositivo (11) gera um segundo número randómico (B) que é codificado pela mencionada chave pública (PAKB), então transmitida ao primeiro dispositivo (10), no qual está decodificado por meios da chave pública (PAKV). Uma chave sessão (SK), usada para troca de dados segura, é gerada por uma combinação da chave simétrica (13) e os números randómicos (A,B) gerado e recebido por cada um dos dispositivos.
BRPI0311813A 2002-06-12 2003-06-10 método e receptor para troca segura de dados entre dois dispositivos BRPI0311813B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH10022002 2002-06-12
PCT/IB2003/002425 WO2003107585A1 (fr) 2002-06-12 2003-06-10 Procédé d'échange sécurisé d'informations entre deux dispositifs

Publications (2)

Publication Number Publication Date
BR0311813A true BR0311813A (pt) 2005-03-15
BRPI0311813B1 BRPI0311813B1 (pt) 2017-01-24

Family

ID=29721339

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0311813A BRPI0311813B1 (pt) 2002-06-12 2003-06-10 método e receptor para troca segura de dados entre dois dispositivos

Country Status (21)

Country Link
US (2) US8522028B2 (pt)
EP (1) EP1529369B1 (pt)
JP (1) JP2006512792A (pt)
KR (1) KR101009523B1 (pt)
CN (1) CN1659821A (pt)
AT (1) ATE339819T1 (pt)
AU (1) AU2003240205B2 (pt)
BR (1) BRPI0311813B1 (pt)
CA (1) CA2488837C (pt)
DE (1) DE60308384T2 (pt)
ES (1) ES2273005T3 (pt)
HK (1) HK1072134A1 (pt)
IL (1) IL165598A (pt)
MY (1) MY132101A (pt)
PL (1) PL371972A1 (pt)
PT (1) PT1529369E (pt)
RU (1) RU2321179C2 (pt)
SG (1) SG105005A1 (pt)
TW (1) TW200401203A (pt)
WO (1) WO2003107585A1 (pt)
ZA (1) ZA200409819B (pt)

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Also Published As

Publication number Publication date
BRPI0311813B1 (pt) 2017-01-24
HK1072134A1 (en) 2005-08-12
CN1659821A (zh) 2005-08-24
RU2321179C2 (ru) 2008-03-27
PL371972A1 (en) 2005-07-11
PT1529369E (pt) 2007-01-31
CA2488837C (en) 2011-04-26
IL165598A (en) 2010-02-17
AU2003240205B2 (en) 2007-07-05
KR101009523B1 (ko) 2011-01-18
ZA200409819B (en) 2006-10-25
KR20050010860A (ko) 2005-01-28
ES2273005T3 (es) 2007-05-01
TW200401203A (en) 2004-01-16
MY132101A (en) 2007-09-28
SG105005A1 (en) 2004-07-30
EP1529369B1 (fr) 2006-09-13
IL165598A0 (en) 2006-01-15
AU2003240205A1 (en) 2003-12-31
WO2003107585A1 (fr) 2003-12-24
ATE339819T1 (de) 2006-10-15
JP2006512792A (ja) 2006-04-13
US20060190726A1 (en) 2006-08-24
CA2488837A1 (en) 2003-12-24
DE60308384D1 (de) 2006-10-26
RU2004135376A (ru) 2005-06-27
US8522028B2 (en) 2013-08-27
DE60308384T2 (de) 2007-09-20
US20130101120A1 (en) 2013-04-25
EP1529369A1 (fr) 2005-05-11

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