KR100989769B1 - 멀티-홉 무선 네트워크에서의 무선 라우터 보조 보안핸드오프(wrash) - Google Patents
멀티-홉 무선 네트워크에서의 무선 라우터 보조 보안핸드오프(wrash) Download PDFInfo
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- KR100989769B1 KR100989769B1 KR1020087018063A KR20087018063A KR100989769B1 KR 100989769 B1 KR100989769 B1 KR 100989769B1 KR 1020087018063 A KR1020087018063 A KR 1020087018063A KR 20087018063 A KR20087018063 A KR 20087018063A KR 100989769 B1 KR100989769 B1 KR 100989769B1
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- handoff
- access point
- wireless router
- mobile station
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- 238000000034 method Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims description 11
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
- H04W36/0038—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of security context information
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- 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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
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- 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
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- 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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
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- 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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (10)
- 멀티-홉 통신 네트워크에서의 무선 라우터 보조 보안 핸드오프(wireless router assisted security handoff)의 방법으로서,이동국에서,보안 핸드오프를 보조하기 위해 액세스 포인트에 대한 제1 홉(hop)인 무선 라우터를 선택하는 단계와,상기 무선 라우터로부터 수신된 헬로우(hello) 메시지로부터 상기 무선 라우터의 SN(sequence number)과, 상기 액세스 포인트의 액세스 포인트 MAC(media access control) 어드레스(AA)를 검색하는 단계와,상기 SN 및 상기 AA를 사용해서 PTK(pairwise transient key)를 생성하는 단계와,재연계 요청(re-association request)을 포함하는 제1 핸드오프 메시지를 상기 이동국으로부터 상기 무선 라우터로 송신하는 단계를 포함하고,상기 무선 라우터에서,상기 제1 핸드오프 메시지를 안전하게(securely) 상기 액세스 포인트에게 터널링하는 단계를 포함하며,상기 액세스 포인트에서,상기 무선 라우터로부터 상기 제1 핸드오프 메시지를 수신하는 단계와,상기 SN 및 상기 AA를 사용해서 상기 PTK를 생성하는 단계와,상기 PTK를 사용해서 상기 제1 핸드오프 메시지의 메시지 무결성(integrity)을 검증(validating)하는 단계와,상기 PTK를 사용해서 재연계 응답을 포함하는 제2 핸드오프 메시지를 생성하는 단계와,상기 무선 라우터에게 상기 제2 핸드오프 메시지를 송신하는 단계를 포함하고,상기 무선 라우터에서,상기 제2 핸드오프 메시지를 안전하게 상기 이동국에 터널링하는 단계를 포함하며,상기 이동국에서,상기 PTK를 사용해서 상기 제2 핸드오프 메시지의 메시지 무결성을 검증하는 단계와,상기 이동국과 상기 액세스 포인트 사이의 통신을 설정하는 단계를 포함하는 무선 라우터 보조 보안 핸드오프의 방법.
- 제1항에 있어서,상기 제1 핸드오프 메시지는 MID(message identification), 상기 이동국의 PSC(protected security context), 상기 무선 라우터의 SN(sequence number), MS_Nonce(mobile station-generated random number), 상기 액세스 포인트의 AA, 상기 이동국의 MAC(media access control) 어드레스(SPA), WRA(wireless router address) 및 MIC(message integrity code) 중 하나 또는 그 이상을 포함하는 무선 라우터 보조 보안 핸드오프의 방법.
- 제1항에 있어서,상기 액세스 포인트를 포함하는 모든 네트워크 액세스 포인트들에서 SCEK(security context encryption key)를 구성하는 단계와,SCEK를 사용해서 상기 액세스 포인트에서 수신된 상기 제1 핸드오프 메시지를 해독하는 단계를 더 포함하는 무선 라우터 보조 보안 핸드오프의 방법.
- 제1항에 있어서,상기 선택 단계 전에,상기 무선 라우터가 상기 네트워크에 합류(join)할 때 상기 무선 라우터와 상기 액세스 포인트 사이에서 보안 연계(security association)를 제공하는 단계를 더 포함하는 무선 라우터 보조 보안 핸드오프의 방법.
- 제1항에 있어서,상기 선택 단계 전에,초기 이동국 인증 중에 제1 액세스 포인트와 상기 이동국 둘 모두에서 핸드오프 PMK(pairwise master key)를 생성하는 단계와,상기 이동국의 상기 핸드오프 PMK와 MAC 어드레스를 암호화함으로써 상기 제1 액세스 포인트에서 PSC(protected security context) 데이터를 생성하는 단계와,상기 초기 이동국 인증 중에 상기 제1 액세스 포인트로부터 상기 이동국으로 상기 PSC를 전송하는 단계와,상기 이동국과 상기 액세스 포인트 간의 통신을 설정한 후, 상기 이동국을 경유해서 상기 제1 액세스 포인트로부터 상기 액세스 포인트로 상기 PSC 데이터의 핸드오프 PMK를 전송하는 단계를 더 포함하는 무선 라우터 보조 보안 핸드오프의 방법.
- 제1항에 있어서,상기 무선 라우터에 의해 메시지의 나이(age)를 검증한 후, 상기 재연계 요청 메시지가 터널링되는 무선 라우터 보조 보안 핸드오프의 방법.
- 제2항에 있어서,상기 무선 라우터에서, 상기 제1 핸드오프 메시지를 터널링하기 전에,상기 제1 핸드오프 메시지의 SN, SPA 및 AA를 체크하는 단계와,동일한 SPA를 갖는 이전 SN을 구비한 상기 제1 핸드오프 메시지를 폐기하는 단계와,체크가 통과될 때, 상기 제1 핸드오프 메시지를 상기 액세스 포인트에게 안전하게 터널링하고 현재의 SN값을 1만큼 증가시키는 단계를 더 포함하는 무선 라우터 보조 보안 핸드오프의 방법.
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/323,727 | 2005-12-30 | ||
US11/323,727 US7483409B2 (en) | 2005-12-30 | 2005-12-30 | Wireless router assisted security handoff (WRASH) in a multi-hop wireless network |
Publications (2)
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KR20080087863A KR20080087863A (ko) | 2008-10-01 |
KR100989769B1 true KR100989769B1 (ko) | 2010-10-26 |
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US (1) | US7483409B2 (ko) |
EP (1) | EP1974553B1 (ko) |
JP (1) | JP4682250B2 (ko) |
KR (1) | KR100989769B1 (ko) |
CN (1) | CN101366291B (ko) |
WO (1) | WO2007079349A2 (ko) |
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2005
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2006
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WO2007079349A2 (en) | 2007-07-12 |
KR20080087863A (ko) | 2008-10-01 |
US20070153739A1 (en) | 2007-07-05 |
JP4682250B2 (ja) | 2011-05-11 |
EP1974553A4 (en) | 2012-04-04 |
WO2007079349A3 (en) | 2007-12-13 |
CN101366291B (zh) | 2011-12-07 |
WO2007079349A8 (en) | 2008-08-21 |
JP2009524274A (ja) | 2009-06-25 |
CN101366291A (zh) | 2009-02-11 |
EP1974553B1 (en) | 2016-03-30 |
EP1974553A2 (en) | 2008-10-01 |
US7483409B2 (en) | 2009-01-27 |
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