BRPI0403934A - Sistema de comunicação ad-hoc sem fio, terminal, métodos para decodificar e criptografar um quadro de radiodifusão em um terminal e para distribuir uma chave de criptografia de radiodifusão em um segundo terminal, e, programa - Google Patents

Sistema de comunicação ad-hoc sem fio, terminal, métodos para decodificar e criptografar um quadro de radiodifusão em um terminal e para distribuir uma chave de criptografia de radiodifusão em um segundo terminal, e, programa

Info

Publication number
BRPI0403934A
BRPI0403934A BR0403934-3A BRPI0403934A BRPI0403934A BR PI0403934 A BRPI0403934 A BR PI0403934A BR PI0403934 A BRPI0403934 A BR PI0403934A BR PI0403934 A BRPI0403934 A BR PI0403934A
Authority
BR
Brazil
Prior art keywords
terminal
encryption key
broadcast
communication system
broadcasting
Prior art date
Application number
BR0403934-3A
Other languages
English (en)
Inventor
Hideyuki Suzuki
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of BRPI0403934A publication Critical patent/BRPI0403934A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • 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
    • 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)
    • H04L9/0825—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) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • 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
    • H04L9/32—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
    • H04L9/3263—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 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • 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
    • H04L2209/601—Broadcast encryption
    • 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
    • H04L2209/80—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/54—Organization of routing tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

"SISTEMA DE COMUNICAçãO AD-HOC SEM FIO, TERMINAL, MéTODOS PARA DECODIFICAR E CRIPTOGRAFAR UM QUADRO DE RADIODIFUSãO EM UM TERMINAL E PARA DISTRIBUIR UMA CHAVE DE CRIPTOGRAFIA DE RADIODIFUSãO EM UM SEGUNDO TERMINAL, E, PROGRAMA". Cada terminal em um sistema de comunicação ad-hoc sem fio inclui uma tabela de lista de gerenciamento de chave de criptografia (660). A tabela de lista de gerenciamento de chave de criptografia (660) armazena, em associação com um identificador de terminal 661, tal como um endereço de MAC, uma chave de criptografia de unidifusão (662) para uso em comunicação por unidifusão, com um terminal identificado pelo identificador de terminal (661), e uma chave de criptografia de radiodifusão (663) usada quando o terminal identificado pelo identificador de terminal (661) executa comunicação por radiodifusão. Por conseguinte, uma chave de criptografia de radiodifusão é provida para cada terminal que executa comunicação por radiodifusão, e as chaves de criptografia de radiodifusão são gerenciadas pelos terminais individual em uma maneira independente e distribuída. Isto permite gerenciamento independente e distribuído de chaves de criptografia de radiodifusão em um sistema de comunicação ad-hoc sem fio.
BR0403934-3A 2003-02-03 2004-02-03 Sistema de comunicação ad-hoc sem fio, terminal, métodos para decodificar e criptografar um quadro de radiodifusão em um terminal e para distribuir uma chave de criptografia de radiodifusão em um segundo terminal, e, programa BRPI0403934A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003026543A JP2004266342A (ja) 2003-02-03 2003-02-03 無線アドホック通信システム、端末、その端末における復号方法、暗号化方法及びブロードキャスト暗号鍵配布方法並びにそれらの方法を端末に実行させるためのプログラム
PCT/JP2004/001076 WO2004071006A1 (ja) 2003-02-03 2004-02-03 ブロードキャスト暗号鍵配布システム

Publications (1)

Publication Number Publication Date
BRPI0403934A true BRPI0403934A (pt) 2005-01-04

Family

ID=32844146

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0403934-3A BRPI0403934A (pt) 2003-02-03 2004-02-03 Sistema de comunicação ad-hoc sem fio, terminal, métodos para decodificar e criptografar um quadro de radiodifusão em um terminal e para distribuir uma chave de criptografia de radiodifusão em um segundo terminal, e, programa

Country Status (7)

Country Link
US (1) US8094822B2 (pt)
EP (1) EP1592166A4 (pt)
JP (1) JP2004266342A (pt)
KR (1) KR20050101110A (pt)
CN (1) CN1698305A (pt)
BR (1) BRPI0403934A (pt)
WO (1) WO2004071006A1 (pt)

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Also Published As

Publication number Publication date
EP1592166A4 (en) 2011-12-28
US20050123141A1 (en) 2005-06-09
WO2004071006A1 (ja) 2004-08-19
KR20050101110A (ko) 2005-10-20
JP2004266342A (ja) 2004-09-24
CN1698305A (zh) 2005-11-16
EP1592166A1 (en) 2005-11-02
US8094822B2 (en) 2012-01-10

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

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