KR20070026331A - 패킷이 필터링되어 있는 것 이외의 네트워크 프로토콜레이어에서 가상 사설망을 형성하기 위해 보안 통신 링크를설정하기 위한 시스템, 장치 및 방법 - Google Patents
패킷이 필터링되어 있는 것 이외의 네트워크 프로토콜레이어에서 가상 사설망을 형성하기 위해 보안 통신 링크를설정하기 위한 시스템, 장치 및 방법 Download PDFInfo
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- KR20070026331A KR20070026331A KR1020067009144A KR20067009144A KR20070026331A KR 20070026331 A KR20070026331 A KR 20070026331A KR 1020067009144 A KR1020067009144 A KR 1020067009144A KR 20067009144 A KR20067009144 A KR 20067009144A KR 20070026331 A KR20070026331 A KR 20070026331A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/22—Arrangements for preventing the taking of data from a data transmission channel without authorisation
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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
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0272—Virtual private networks
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/164—Implementing security features at a particular protocol layer at the network layer
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- Quality & Reliability (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Computer And Data Communications (AREA)
Abstract
Description
Claims (23)
- 가상 사설망을 설정하여 원격 클라이언트 컴퓨팅 디바이스와의 통신을 보안하기 위한 방법에 있어서:클라이언트 컴퓨팅 디바이스 상에서 실행되는 통신 어플리케이션으로 패킷 트래픽을 형성하는 단계;상기 클라이언트 컴퓨팅 디바이스에서 타겟 서버에 어드레스된 상기 패킷 트래픽의 타겟 패킷을 식별하는 단계;상기 컴퓨팅 디바이스 상의 의사 서버 모듈과 상기 타겟 서버 간의 보안 통신 링크를 형성하는 단계;상기 타겟 서버에 어드레스된 부가의 패킷 트래픽을 상기 의사 서버 모듈로 향하게 하는 단계;상기 의사 서버 모듈로 다시 라우팅된 상기 부가의 패킷 트래픽의 수신시 상기 통신 어플리케이션에 확인 신호를 보내는 단계; 및상기 타겟 서버로 페이로드를 라우팅하는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 클라이언트 컴퓨팅 디바이스에서 상기 타켓 패킷 트래픽을 식별하는 단계는:상기 패킷 트래픽을 주소 검사 드라이버에서 검사하는 단계;상기 패킷 트래픽의 정보를 상기 타켓 서버를 나타내는 주소에 매치시키는 단계; 및상기 타겟 서버를 나타내는 상기 주소 행 상기 패킷 트래픽의 서브셋을 상기 의사 서버 모듈에 다시 라우팅될 상기 패킷 트래픽으로 필터링하는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 의사 서버와 상기 타겟 서버 간에 상기 보안 통신 링크를 형성하는 단계는:상기 타겟 패킷 트래픽을 상기 클라이언트 컴퓨팅 디바이스 상의 상기 의사 서버 모듈로 다시 라우팅하는 단계 - 상기 의사 서버 모듈은 상기 타겟 서버에 패킷 재형성 명령을 이송함 - ;상기 타겟 서버에서 상기 패킷 재형성 명령의 수신에 응답하여 상기 타겟 서버로부터 링크 확인 신호를 수신하는 단계; 및상기 통신 어플리케이션에 상기 링크 확인 신호를 이송하는 단계를 포함하는 방법.
- 제3항에 있어서, 상기 패킷 재형성 명령을 이송하는 단계는 상기 타겟 서버에서 헤더 정보를 재형성하기 위한 정보를 포함하는 단계를 포함하는 방법.
- 제4항에 있어서, 상기 정보를 포함하는 단계는 상기 타겟 패킷 트래픽을 제1 포맷에서 제2 포맷으로 전환하는 전환 정보를 포함하는 단계를 더 포함하는 방법.
- 제5항에 있어서, 상기 전환 정보를 포함하는 단계는 전송 제어 프로토콜 ("TCP")와 관련된 상기 제1 포맷을 유저 데이터 프로토콜 ("UDP")과 관련된 제2 포맷으로 전환하기 위한 정보를 포함하는 방법.
- 제1항에 있어서, 상기 페이로드를 상기 타겟 서버에 라우팅하는 단계는 상기 부가의 패킷 트래픽으로부터 헤더 정보를 제거하여 페이로드를 형성하는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 확인 신호는 폴스 확인 신호인 방법.
- 가상 사설망을 형성하기 위한 컴퓨터 시스템에 있어서:타겟 서버에 어드레스된 초기 타겟 패킷 트래픽을 식별하는 주소 검사 드라이버; 및상기 주소 검사 드라이버로부터 다시 라우팅된 초기 타겟 패킷 트래픽을 수신하는 의사 서버 모듈 - 상기 의사 서버 모듈은 상기 타겟 서버에 패킷 재형성 명령을 이송함 -을 포함하고,상기 주소 검사 드라이버는 상기 타겟 서버에 어드레스된 부가의 타겟 패킷 트래픽을 식별하고 상기 부가의 타겟 패킷 트래픽을 상기 의사 서버에 라우팅하고,상기 의사 서버는 상기 부가의 타겟 패킷 트래픽으로부터 헤더 정보를 제거하여 페이로드를 형성한 후에 상기 페이로드를 상기 타겟 서버에 라우팅하는 컴퓨터 시스템.
- 제9항에 있어서, 상기 주소 검사 드라이버가 상기 초기 패킷 트래픽으로부터의 패킷 정보와 비교하게 되는 소스 정보와 목적지 정보를 포함하도록 구성된 드라이버 매핑 데이터 구조를 더 포함하는 컴퓨터 시스템.
- 제9항에 있어서, 상기 주소 검사 드라이버는 상기 패킷 정보의 적어도 일부가 상기 목적지 정보의 적어도 일부와 매치할 때 상기 부가의 타겟 패킷 트래픽을 상기 타겟 서버에 비암호화 전달되지 않게 필터링하도록 구성되는 컴퓨터 시스템.
- 제9항에 있어서, 상기 주소 검사 드라이버는 상기 초기 타겟 패킷 트래픽과 관련하여 상기 의사 서버에 다시 라우팅된 제어 패킷을 형성하도록 구성되는 컴퓨터 시스템.
- 제12항에 있어서, 상기 제어 패킷은 상기 타겟 서버에서 발원된 패킷 트래픽을 검출하기 위해 상기 초기 타겟 패킷 트래픽의 소스 및 목적지 정보를 포함하는 컴퓨터 시스템.
- 제9항에 있어서, 상기 패킷 재형성 명령은 재형성된 헤더 정보와 상기 페이로드를 포함하는 재형성 패킷 트래픽을 형성하기 위해 상기 타겟 서버가 상기 타겟 패킷 트래픽을 재형성하게 하도록 구성되는 컴퓨터 시스템.
- 제9항에 있어서, 상기 주소 검사 드라이버가 상기 네트워크 레이어나 그 근처에 존재하고 상기 의사 서버 모듈이 상기 전송 레이어나 그 근처에 존재하는 프로토콜 스택을 더 포함하고, 상기 네트워크 레이어와 전송 레이어는 상기 오픈 시스템 인터커넥션 모델에 따른 레이어인 컴퓨터 시스템.
- 제15항에 있어서, 상기 주소 검사 드라이버는 상기 네트워크 레이어나 그 근처에서 패킷을 검사 및 필터링하고, 이로써 상기 가상 사설망에서 보안 통신 링크를 설정하는 라우팅 프로토콜을 지원하는 컴퓨터 시스템.
- 제16항에 있어서, 상기 의사 서버는 상기 전송 레이어나 그 근처에서 발원된 보안 통신 링크 상에서 암호화 패킷을 전달하고, 이로써 상기 암호화 패킷이 네트워크 주소 변환 ("NAT") 가능 네트워크 디바이스를 통과하는 것이 가능한 컴퓨터 시스템.
- 가상 사설망에 있어서,상기 클라이언트 머신 상에서 실행되는 통신 어플리케이션과 관련하여 의사 서버 머신으로 구성되어, 상기 통신 어플리케이션이 상기 의사 서버 머신으로부터 패킷 트래픽 확인 신호를 수신하는 클라이언트 머신; 및상기 클라이언트 머신과 상기 서버 머신 간에 보안 통신을 용이하게 하기 위해서 상기 의사 서버 머신과 관련하여 클라이언트 머신으로 기능하도록 서버 머신과 작용하는 가상 사설망 게이트웨이를 포함하는 가상 사설망.
- 제18항에 있어서, 상기 가상 사설망 게이트웨이는 상기 통신 어플리케이션을 실행하는 상기 클라이언트 머신의 주소를 상기 서버 머신으로부터 선택 가능하게 감추는 가상 사설망.
- 제18항에 있어서, 상기 의사 서버 머신은 상기 패킷 트래픽 확인 신호를 폴스 확인 신호로 형성하기 위한 확인 신호 형성기 모듈을 포함하는 가상 사설망.
- 제17항에 있어서, 상기 의사 서버 머신은 헤더 정보를 제거하여 수정 패킷을 형성하기 위해서 상기 보안 통신을 나타내는 패킷을 수정하도록 구성된 패킷 수정기 모듈을 포함하는 가상 사설망
- 제21항에 있어서, 상기 의사 서버 머신은 상기 보안 통신을 전달하는 소켓 레이어에서 원시 소켓을 형성하도록 구성되는 가상 사설망.
- 제18항에 있어서, 상기 의사 서버 머신은 상기 UDP 패킷이 TCP 패킷인 것을 나타내기 위해 UDP 패킷의 플랙을 수정하도록 구성된 flag-UDP-as-TCP 모듈을 포함하고, 이로 인해 의사 UDP 패킷을 형성하는 가상 사설망.
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US52499903P | 2003-11-24 | 2003-11-24 | |
US60/524,999 | 2003-11-24 |
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EP (1) | EP1683020B1 (ko) |
JP (1) | JP2007533172A (ko) |
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2004
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- 2004-11-12 KR KR1020067009144A patent/KR20070026331A/ko not_active Ceased
- 2004-11-12 CA CA2545496A patent/CA2545496C/en not_active Expired - Lifetime
- 2004-11-12 EP EP04810901.1A patent/EP1683020B1/en not_active Expired - Lifetime
- 2004-11-12 WO PCT/US2004/037918 patent/WO2005048106A2/en active Application Filing
- 2004-11-12 JP JP2006539930A patent/JP2007533172A/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101027725B1 (ko) * | 2009-12-29 | 2011-04-12 | 주식회사 피앤피시큐어 | 가용성 보장을 위한 프록시 기반의 보안시스템 |
WO2013018940A1 (ko) * | 2011-07-29 | 2013-02-07 | 인터리젠 주식회사 | 전자상거래 불법 거래 탐지 및 차단 방법과 시스템 |
KR101288103B1 (ko) * | 2011-07-29 | 2013-08-23 | 인터리젠 주식회사 | 전자상거래 불법 거래 탐지 및 차단 방법과 시스템 |
KR101428999B1 (ko) * | 2013-04-12 | 2014-08-12 | 주식회사 엑스게이트 | Dns 정보를 이용한 패킷 필터링 방법 및 방화벽 장치 |
Also Published As
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CA2545496A1 (en) | 2005-05-26 |
WO2005048106A2 (en) | 2005-05-26 |
CA2545496C (en) | 2012-10-30 |
JP2007533172A (ja) | 2007-11-15 |
EP1683020A2 (en) | 2006-07-26 |
US20050185647A1 (en) | 2005-08-25 |
US7496097B2 (en) | 2009-02-24 |
EP1683020B1 (en) | 2018-01-24 |
EP1683020A4 (en) | 2011-08-31 |
WO2005048106A3 (en) | 2005-06-23 |
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