MX2012001203A - Mejoramiento pasivo de seguridad de red optica basado en interfaz de control de gestion de terminal de red optica. - Google Patents

Mejoramiento pasivo de seguridad de red optica basado en interfaz de control de gestion de terminal de red optica.

Info

Publication number
MX2012001203A
MX2012001203A MX2012001203A MX2012001203A MX2012001203A MX 2012001203 A MX2012001203 A MX 2012001203A MX 2012001203 A MX2012001203 A MX 2012001203A MX 2012001203 A MX2012001203 A MX 2012001203A MX 2012001203 A MX2012001203 A MX 2012001203A
Authority
MX
Mexico
Prior art keywords
optical network
onu
olt
control interface
management control
Prior art date
Application number
MX2012001203A
Other languages
English (en)
Inventor
Frank J Effenberger
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2012001203A publication Critical patent/MX2012001203A/es

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
    • 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
    • H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • 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
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0869—Network architectures or network communication protocols for network security for authentication of entities for achieving mutual authentication
    • 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
    • H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
    • H04L63/205—Network architectures or network communication protocols for network security for managing network security; network security policies in general involving negotiation or determination of the one or more network security mechanisms to be used, e.g. by negotiation between the client and the server or between peers or by selection according to the capabilities of the entities involved
    • 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)
    • H04L9/0822—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 key encryption key
    • 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
    • H04L9/3271—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 using challenge-response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • 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
    • H04L63/162—Implementing security features at a particular protocol layer at the data link layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0088—Signalling aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer And Data Communications (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un componente de red que comprende al menos un procesador acoplado a una memoria y configurado para intercambiar información de seguridad utilizando una pluralidad de atributos en una entidad de gestión (ME) en una unidad de red óptica (ONU) a través de un canal de interfaz de control de gestión de ONU (OMCI), en donde la ME soporta una pluralidad de funciones de seguridad que protegen las transmisiones de subida entre la ONU y una terminal de línea óptica (OLT) También se incluye un aparato que comprende una ONU configurada para acoplarse a una OLT y comprende una OMCI ME, en donde la OMCI ME comprende una pluralidad de atributos que soportan una pluralidad de características de seguridad para las transmisiones de subida entre la ONU y la OLT, y en donde los atributos son comunicados a través de un canal OMCI entre la ONU y la OLT y proporcionan las características de seguridad para la ONU y la OLT.
MX2012001203A 2009-07-31 2010-07-31 Mejoramiento pasivo de seguridad de red optica basado en interfaz de control de gestion de terminal de red optica. MX2012001203A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23052009P 2009-07-31 2009-07-31
US12/844,173 US8850197B2 (en) 2009-07-31 2010-07-27 Optical network terminal management control interface-based passive optical network security enhancement
PCT/CN2010/075618 WO2011012092A1 (en) 2009-07-31 2010-07-31 Optical network terminal management control interface-based passive optical network security enhancement

Publications (1)

Publication Number Publication Date
MX2012001203A true MX2012001203A (es) 2012-03-26

Family

ID=43528092

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2012001203A MX2012001203A (es) 2009-07-31 2010-07-31 Mejoramiento pasivo de seguridad de red optica basado en interfaz de control de gestion de terminal de red optica.

Country Status (14)

Country Link
US (3) US8850197B2 (es)
EP (3) EP2449718B1 (es)
JP (1) JP5366108B2 (es)
KR (1) KR101370272B1 (es)
CN (1) CN102656838B (es)
AU (1) AU2010278478B2 (es)
BR (1) BR112012008062B8 (es)
CA (1) CA2769226C (es)
ES (2) ES2606959T3 (es)
MX (1) MX2012001203A (es)
PL (2) PL2882134T3 (es)
PT (1) PT2882134T (es)
RU (1) RU2507691C2 (es)
WO (1) WO2011012092A1 (es)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8751630B2 (en) * 2008-10-28 2014-06-10 Futurewei Technologies, Inc. Collecting status from a partner management domain
US8850197B2 (en) 2009-07-31 2014-09-30 Futurewei Technologies, Inc. Optical network terminal management control interface-based passive optical network security enhancement
CN102136907A (zh) * 2010-01-25 2011-07-27 中兴通讯股份有限公司 一种无源光网络系统组播业务加密方法和装置
US8422887B2 (en) * 2010-01-31 2013-04-16 Pmc Sierra Ltd System for redundancy in Ethernet passive optical networks (EPONs)
US9185555B2 (en) * 2010-04-22 2015-11-10 Futurewei Technologies, Inc. Method for authentication of a wireless backup system for an optical network unit
KR20120073869A (ko) * 2010-12-27 2012-07-05 한국전자통신연구원 Ｐｏｎ 시스템에서 ｏａｍ 메시지 전송 방법 및 에러 처리 방법
CN102395056B (zh) * 2011-06-29 2017-09-26 中兴通讯股份有限公司 虚拟局域网模式的配置方法、系统
CN102571350B (zh) * 2011-12-30 2018-04-10 中兴通讯股份有限公司 光网络单元认证方法及装置
US8909929B2 (en) * 2012-05-31 2014-12-09 Atmel Corporation Stored public key validity registers for cryptographic devices and systems
US9756036B2 (en) * 2012-06-15 2017-09-05 Nokia Technologies Oy Mechanisms for certificate revocation status verification on constrained devices
WO2013189042A1 (en) 2012-06-20 2013-12-27 Telefonaktiebolaget L M Ericsson (Publ) Devices and methods for flow control of messages in an passive optical network (pon) and methods therein
CN103067204B (zh) * 2012-12-25 2017-08-04 上海斐讯数据通信技术有限公司 一种从应用层访问omci实体的方法
US9535680B2 (en) 2013-03-12 2017-01-03 Broadcom Corporation Flashless optical network unit
TWI504176B (zh) 2013-06-14 2015-10-11 Univ Nat Chiao Tung 分波多工光纖網路系統
BR112016003580B1 (pt) * 2013-08-22 2022-08-09 Huawei Technologies Co., Ltd Método de autenticação de terminal, terminal de linha óptica e sistema em rede óptica passiva
WO2015085595A1 (zh) 2013-12-13 2015-06-18 华为技术有限公司 一种光线路终端、通信方法及无源光网络系统
US9768905B2 (en) 2014-06-25 2017-09-19 Futurewei Technologies, Inc. Optical line terminal (OLT) support of optical network unit (ONU) calibration
CN105471603B (zh) * 2014-08-19 2020-12-11 中兴通讯股份有限公司 一种远程配置光网络单元ptp业务的方法、装置和系统
CN105447380A (zh) * 2014-09-28 2016-03-30 上海贝尔股份有限公司 一种pon网络系统中客户端代码完整性检测方法及装置
CN104394042B (zh) * 2014-12-17 2018-01-02 上海斐讯数据通信技术有限公司 一种mib测试onu系统升级的方法
US10063312B2 (en) * 2016-06-21 2018-08-28 Futurewei Technologies, Inc. Optical network unit reset message
US10210317B2 (en) * 2016-08-15 2019-02-19 International Business Machines Corporation Multiple-point cognitive identity challenge system
JP6841120B2 (ja) * 2017-03-29 2021-03-10 沖電気工業株式会社 加入者側終端装置、局側終端装置、通信システム、加入者側終端装置のプログラムおよび局側終端装置のプログラム
EP3607706A4 (en) * 2017-04-03 2020-12-30 Listat Ltd. METHOD AND DEVICE FOR HYPERSECURE LAST MILE COMMUNICATION
CN109039600B (zh) * 2018-07-16 2020-01-07 烽火通信科技股份有限公司 一种无源光网络系统中协商加密算法的方法及系统
CN109246119B (zh) * 2018-09-28 2021-09-14 四川天邑康和通信股份有限公司 一种具有认证信息自动修改功能的pon系统
CN112232817A (zh) * 2018-10-25 2021-01-15 创新先进技术有限公司 基于区块链的交易处理方法及装置、电子设备
CN111526107B (zh) * 2019-02-01 2022-07-19 中国移动通信有限公司研究院 一种网络设备认证方法、装置和存储介质
CN112769547A (zh) * 2019-11-05 2021-05-07 成都鼎桥通信技术有限公司 密钥分片传输方法和装置、及对应的接收方法和装置
CN113068086B (zh) * 2020-01-02 2023-04-18 上海诺基亚贝尔股份有限公司 一种用于传输omci消息的方法、装置和系统
CN111786773B (zh) * 2020-06-24 2022-10-18 重庆邮电大学 一种基于md5校验和aes加密的twdm-pon系统物理层安全方法
US11184085B1 (en) * 2020-09-03 2021-11-23 Mellanox Technologies, Ltd. Electro-optical interconnect assembly with integral tampering protection
CN114765706A (zh) * 2021-01-15 2022-07-19 上海诺基亚贝尔股份有限公司 用于从OLT触发vOMCI功能发送OMCI消息的方法和装置
US20220277102A1 (en) * 2021-02-28 2022-09-01 John JungKyun Kim Process using one-way hashing function for secure collection, presentation and storage of PII
WO2022231618A1 (en) * 2021-04-30 2022-11-03 Hewlett-Packard Development Company, L.P. Protection of computing device from potential optical network intrusion attack
CN115277458B (zh) * 2021-04-30 2023-11-17 阿里巴巴新加坡控股有限公司 服务提供方法、设备及存储介质
TWI757192B (zh) * 2021-05-27 2022-03-01 瑞昱半導體股份有限公司 光網路單元及控制光網路單元與光連結終端進行連線的方法
CN113395615B (zh) * 2021-06-10 2022-05-06 烽火通信科技股份有限公司 一种消息处理方法、装置、电子设备和可读存储介质
CN113923544B (zh) * 2021-09-28 2023-05-12 烽火通信科技股份有限公司 标准及私有omci业务模型onu的管理方法及系统
CN114302269B (zh) * 2021-12-17 2024-04-09 博为科技有限公司 Onu接入方法、装置、存储介质及电子设备

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7301968B2 (en) * 2001-03-02 2007-11-27 Pmc-Sierra Israel Ltd. Communication protocol for passive optical network topologies
NO319065B1 (no) * 2002-10-11 2005-06-13 Telenor Asa Apen aksessnettverks-arkitektur
KR100547724B1 (ko) * 2003-08-26 2006-01-31 삼성전자주식회사 데이터를 안정적으로 전송할 수 있는 기가비트 이더넷기반의 수동 광가입자망 및 이를 이용한 데이터 암호화 방법
FI20031429A0 (fi) * 2003-10-02 2003-10-02 Nokia Corp Varma upstream -tiedonsiirto passiivisessa optisissa verkoissa
US20060228113A1 (en) * 2003-12-01 2006-10-12 Siemens Aktiengesellschaft Passive optical network unit management and control interface support for a digital subscriber line network
KR100675836B1 (ko) * 2004-12-10 2007-01-29 한국전자통신연구원 Ｅｐｏｎ 구간내에서의 링크 보안을 위한 인증 방법
KR100715679B1 (ko) * 2005-12-05 2007-05-09 한국전자통신연구원 인증 암호화를 통해 보안 전송을 가능하게 하는 ｇｐｏｎ시스템 및 그 인증 암호화 방법
US8086872B2 (en) * 2005-12-08 2011-12-27 Electronics And Telecommunications Research Institute Method for setting security channel based on MPCP between OLT and ONUs in EPON, and MPCP message structure for controlling frame transmission
ES2454965T3 (es) * 2006-01-18 2014-04-14 Huawei Technologies Co., Ltd. Un método para asociar el flujo de servicio al canal de transmisión del servicio, su sistema y su terminador de red óptica
CN101064719A (zh) * 2006-04-27 2007-10-31 华为技术有限公司 Pon系统中加密算法协商方法
US20070274720A1 (en) * 2006-05-25 2007-11-29 Menasco Heyward E Jr Optical Network Unit Activation
JP4753254B2 (ja) * 2006-08-08 2011-08-24 日本電信電話株式会社 暗号化通信システム、ならびに暗号化手段を備えたｏｌｔおよびｏｎｕ
US8121479B2 (en) 2006-08-11 2012-02-21 Futurewei Technologies, Inc. Optical network terminal management and control interface (OMCI) containing a description of the OMCI
CN1968089A (zh) 2006-09-29 2007-05-23 华为技术有限公司 一种无源光网络的用户认证方法
CN101247258B (zh) 2007-02-12 2011-02-09 华为技术有限公司 一种业务发放方法及系统
CN101247220B (zh) 2008-03-14 2011-03-02 中兴通讯股份有限公司 一种无源光网络系统密钥交换的方法
CN101252522B (zh) 2008-04-02 2012-07-04 中兴通讯股份有限公司 介质访问控制地址过滤配置的方法及系统
CN101252500B (zh) * 2008-04-16 2012-08-08 杭州华三通信技术有限公司 任意拓扑相交环网的实现方法、节点和相交环网
JP5276935B2 (ja) * 2008-09-12 2013-08-28 株式会社日立製作所 受動光網システムおよびその障害特定方法
KR100982017B1 (ko) * 2008-10-02 2010-09-14 한국전자통신연구원 기가비트 수동형 광 통신망 장치에서 동일한 시리얼 넘버를가진 비 정상적인 광 가입자장치의 차단방법
WO2010060456A1 (en) * 2008-11-03 2010-06-03 Telecom Italia S.P.A. Method for increasing security in a passive optical network
JP5269641B2 (ja) * 2009-02-23 2013-08-21 富士通テレコムネットワークス株式会社 ユーザ認証システムおよびユーザ認証方法
US8850197B2 (en) 2009-07-31 2014-09-30 Futurewei Technologies, Inc. Optical network terminal management control interface-based passive optical network security enhancement

Also Published As

Publication number Publication date
CA2769226C (en) 2015-11-24
EP2882134A1 (en) 2015-06-10
US20120128155A1 (en) 2012-05-24
EP2449718A4 (en) 2012-09-05
WO2011012092A1 (en) 2011-02-03
CN102656838B (zh) 2015-06-17
EP2449718A1 (en) 2012-05-09
BR112012008062B8 (pt) 2024-02-27
AU2010278478A1 (en) 2012-03-01
CN102656838A (zh) 2012-09-05
EP2449718B1 (en) 2015-02-25
AU2010278478B2 (en) 2014-02-27
US8850197B2 (en) 2014-09-30
CA2769226A1 (en) 2011-02-03
EP3125465B1 (en) 2021-09-01
RU2012107414A (ru) 2013-09-10
ES2606959T3 (es) 2017-03-28
BR112012008062B1 (pt) 2021-04-20
EP2882134B1 (en) 2016-09-21
US20140052991A1 (en) 2014-02-20
PL2882134T3 (pl) 2017-04-28
BR112012008062A2 (pt) 2016-03-01
PL2449718T3 (pl) 2015-07-31
KR20120048625A (ko) 2012-05-15
US9032209B2 (en) 2015-05-12
US20110029773A1 (en) 2011-02-03
RU2507691C2 (ru) 2014-02-20
US8442229B2 (en) 2013-05-14
EP3125465A1 (en) 2017-02-01
PT2882134T (pt) 2016-12-06
JP5366108B2 (ja) 2013-12-11
JP2013501389A (ja) 2013-01-10
KR101370272B1 (ko) 2014-03-25
ES2536784T3 (es) 2015-05-28

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