BRPI0412722A - mecanismo de sincronização de chave para lan sem fio (wlan) - Google Patents

mecanismo de sincronização de chave para lan sem fio (wlan)

Info

Publication number
BRPI0412722A
BRPI0412722A BRPI0412722-6A BRPI0412722A BRPI0412722A BR PI0412722 A BRPI0412722 A BR PI0412722A BR PI0412722 A BRPI0412722 A BR PI0412722A BR PI0412722 A BRPI0412722 A BR PI0412722A
Authority
BR
Brazil
Prior art keywords
key
synchronization mechanism
wlan
wireless lan
key synchronization
Prior art date
Application number
BRPI0412722-6A
Other languages
English (en)
Inventor
Junbiao Zhang
Sayrabh Mathur
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0412722A publication Critical patent/BRPI0412722A/pt
Publication of BRPI0412722B1 publication Critical patent/BRPI0412722B1/pt

Links

Classifications

    • 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
    • H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • 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
    • H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
    • 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
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • 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
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • 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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/041—Key generation or derivation
    • 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]
    • H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

"MECANISMO DE SINCRONIZAçãO DE CHAVE PARA LAN SEM FIO (WLAN)". é provido um mecanismo de sincronização de chave para LANs sem fio, em que o ponto de acesso (AP) não começa a usar uma nova chave de codificação até que o primeiro quadro de dados corretamente codificado com a nova chave seja recebido a partir da estação (STA). A nova chave é usada deste ponto em diante, até a expiração de um intervalo de renovação de chave.
BRPI0412722-6A 2003-07-29 2004-07-27 Key synchronization for wireless lan (wlan) BRPI0412722B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US49068603P 2003-07-29 2003-07-29
US60/490.686 2003-07-29
PCT/US2004/023940 WO2005015819A1 (en) 2003-07-29 2004-07-27 Key synchronization mechanism for wireless lan (wlan)

Publications (2)

Publication Number Publication Date
BRPI0412722A true BRPI0412722A (pt) 2006-09-26
BRPI0412722B1 BRPI0412722B1 (pt) 2017-10-24

Family

ID=34135109

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0412722-6A BRPI0412722B1 (pt) 2003-07-29 2004-07-27 Key synchronization for wireless lan (wlan)

Country Status (8)

Country Link
US (1) US8582773B2 (pt)
EP (1) EP1649633B1 (pt)
JP (1) JP4734244B2 (pt)
KR (1) KR101188942B1 (pt)
CN (1) CN1826754B (pt)
BR (1) BRPI0412722B1 (pt)
DE (1) DE602004016343D1 (pt)
WO (1) WO2005015819A1 (pt)

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Also Published As

Publication number Publication date
US8582773B2 (en) 2013-11-12
CN1826754A (zh) 2006-08-30
WO2005015819A1 (en) 2005-02-17
JP2007500972A (ja) 2007-01-18
KR20060063923A (ko) 2006-06-12
CN1826754B (zh) 2010-05-05
DE602004016343D1 (de) 2008-10-16
JP4734244B2 (ja) 2011-07-27
US20060133614A1 (en) 2006-06-22
KR101188942B1 (ko) 2012-10-08
EP1649633B1 (en) 2008-09-03
EP1649633A1 (en) 2006-04-26
BRPI0412722B1 (pt) 2017-10-24

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B25G Requested change of headquarter approved
B25G Requested change of headquarter approved
B25A Requested transfer of rights approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 18A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2681 DE 24-05-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.