HK1008766A1 - System and method for quantum cryptography - Google Patents

System and method for quantum cryptography

Info

Publication number
HK1008766A1
HK1008766A1 HK98109334A HK98109334A HK1008766A1 HK 1008766 A1 HK1008766 A1 HK 1008766A1 HK 98109334 A HK98109334 A HK 98109334A HK 98109334 A HK98109334 A HK 98109334A HK 1008766 A1 HK1008766 A1 HK 1008766A1
Authority
HK
Hong Kong
Prior art keywords
quantum cryptography
cryptography
quantum
Prior art date
Application number
HK98109334A
Other languages
English (en)
Inventor
Keith James Blow
Original Assignee
British Telecomm
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
Priority claimed from PCT/GB1993/002075 external-priority patent/WO1994008409A1/en
Priority claimed from PCT/GB1993/002637 external-priority patent/WO1994015422A1/en
Application filed by British Telecomm filed Critical British Telecomm
Publication of HK1008766A1 publication Critical patent/HK1008766A1/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0852Quantum cryptography
    • H04L9/0858Details about key distillation or coding, e.g. reconciliation, error correction, privacy amplification, polarisation coding or phase coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/08Randomization, e.g. dummy operations or using noise
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/34Encoding or coding, e.g. Huffman coding or error correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
HK98109334A 1993-09-09 1998-07-21 System and method for quantum cryptography HK1008766A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP93307121 1993-09-09
EP93307120 1993-09-09
PCT/GB1993/002075 WO1994008409A1 (en) 1992-10-07 1993-10-06 Quantum cryptography using discarded data
EP93310228 1993-12-17
PCT/GB1993/002637 WO1994015422A1 (en) 1992-12-24 1993-12-23 System and method for key distribution using quantum cryptography
PCT/GB1994/001954 WO1995007584A1 (en) 1993-09-09 1994-09-08 System and method for quantum cryptography

Publications (1)

Publication Number Publication Date
HK1008766A1 true HK1008766A1 (en) 1999-05-14

Family

ID=27514077

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98109334A HK1008766A1 (en) 1993-09-09 1998-07-21 System and method for quantum cryptography

Country Status (9)

Country Link
US (1) US5757912A (ja)
EP (1) EP0717897B1 (ja)
JP (1) JP2951408B2 (ja)
AU (1) AU678049B2 (ja)
CA (1) CA2168851C (ja)
DE (1) DE69408152T2 (ja)
ES (1) ES2111950T3 (ja)
HK (1) HK1008766A1 (ja)
WO (1) WO1995007584A1 (ja)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9320793D0 (en) * 1993-10-08 1993-12-08 Secr Defence Cryptographic receiver
US5604806A (en) * 1995-01-20 1997-02-18 Ericsson Inc. Apparatus and method for secure radio communication
US5953421A (en) * 1995-08-16 1999-09-14 British Telecommunications Public Limited Company Quantum cryptography
US5745578A (en) * 1996-06-17 1998-04-28 Ericsson Inc. Apparatus and method for secure communication based on channel characteristics
AU4206897A (en) * 1996-09-05 1998-03-26 Telecom Ptt Quantum cryptography device and method
JP3542699B2 (ja) * 1997-05-16 2004-07-14 日本電信電話株式会社 量子暗号の構成方法
US6188768B1 (en) * 1998-03-31 2001-02-13 International Business Machines Corporation Autocompensating quantum cryptographic key distribution system based on polarization splitting of light
US6416430B2 (en) * 1998-04-20 2002-07-09 Tom R. Moore Water-skimming sport ball for use in competitive water play
DE19833330C2 (de) * 1998-07-24 2001-03-15 Deutsche Telekom Ag Quantenkryptographiesystem zur gesicherten Übertragung zufälliger Schlüssel unter Verwendung des Polarisationsstellverfahrens
US6289104B1 (en) * 1998-08-07 2001-09-11 Ilinois Institute Of Technology Free-space quantum cryptography system
JP2000121855A (ja) * 1998-10-21 2000-04-28 Nippon Telegr & Teleph Corp <Ntt> 直交偏波出力装置
US6528801B1 (en) * 1998-11-04 2003-03-04 The Research Foundation Of State University Of New York Method and apparatus for detecting radiation
FR2786345B1 (fr) * 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
US6463773B1 (en) * 1999-03-05 2002-10-15 Strattec Security Corporation Electronic latch apparatus and method
US7106971B1 (en) 1999-06-30 2006-09-12 University Of Maryland System and method for optical wireless communication
WO2001006663A2 (en) * 1999-06-30 2001-01-25 University Of Maryland System and method for optical wireless communication
DE10009209A1 (de) * 2000-02-26 2001-09-06 Deutsche Telekom Ag Vorrichtung zur Erzeugung, Addition und Subtraktion digitaler Folgen optischer Pulse und Verfahren zur sicheren Übertragung von Nachrichten
KR100327494B1 (ko) * 2000-03-24 2002-03-15 윤종용 다중 접근 방식을 이용한 보안 통신 시스템에서의 키 동의방법
US6895091B1 (en) 2000-07-07 2005-05-17 Verizon Corporate Services Group Inc. Systems and methods for encryption key archival and auditing in a quantum-cryptographic communications network
JP4849710B2 (ja) * 2000-10-06 2012-01-11 パナソニック株式会社 暗号鍵配布方法及びその装置
US7324647B1 (en) * 2000-10-23 2008-01-29 Bbn Technologies Corp. Quantum cryptographic key distribution networks with untrusted switches
GB2379846B (en) 2000-10-25 2003-08-27 Toshiba Res Europ Ltd Encoding,decoding and communication method and apparatus
FR2816780B1 (fr) * 2000-11-10 2003-01-31 Thomson Csf Procede et systeme de transmission par cryptographie quantique
FR2816779B1 (fr) * 2000-11-10 2003-03-07 Thomson Csf Procede et systeme de transmission par cryptographie quantique
US6476952B1 (en) * 2001-01-17 2002-11-05 Oyster Optics, Inc. Phase-modulated fiber optic telecommunications system
US6594055B2 (en) 2001-01-17 2003-07-15 Oyster Optics, Inc. Secure fiber optic telecommunications system and method
US6469816B1 (en) 2001-05-24 2002-10-22 Oyster Optics, Inc. Phase-modulated fiber optic telecommunications system
US6665500B2 (en) 2001-01-29 2003-12-16 Oyster Optics, Inc. Dual-mode fiber optic telecommunications system and method
US20020131106A1 (en) * 2001-03-16 2002-09-19 Peter Snawerdt Secure wave-division multiplexing telecommunications system and method
DE10117272B4 (de) * 2001-04-06 2005-04-28 Lmu Ludwig Maxilians Uni Muenc Vorrichtung und Verfahren für die Quantenkryptographie
US7184555B2 (en) * 2001-04-11 2007-02-27 Magiq Technologies, Inc. Quantum computation
WO2002084337A2 (en) * 2001-04-11 2002-10-24 Magiq Technologies, Inc. Polarization to phase converter
WO2002089396A1 (en) * 2001-05-01 2002-11-07 Magiq Technologies, Inc. Quantum key system and method
US7113967B2 (en) 2001-05-29 2006-09-26 Magiq Technologies, Inc Efficient quantum computing operations
JP2003018144A (ja) * 2001-06-29 2003-01-17 Nec Corp 量子暗号多ノードネットワーク及び多ノードネットワーク上の鍵配布方法及び量子暗号装置
EP1405444B1 (en) * 2001-07-09 2013-01-23 TQ Gamma, LLC Fiber optic telecommunications card with security detection
JP4015385B2 (ja) * 2001-07-31 2007-11-28 三菱電機株式会社 暗号化装置及び暗号化方法及び暗号化プログラム及び復号装置及び復号方法及び復号プログラム及び暗号化復号システム
US7068790B1 (en) 2001-08-31 2006-06-27 Bbn Technologies Corp. Systems and methods for path set-up in a quantum key distribution network
GB0123640D0 (en) * 2001-09-19 2003-04-09 Matra Bae Dynamics Uk Ltd Multiple pulse generation
US20030063751A1 (en) * 2001-09-20 2003-04-03 Aiden Bruen Key agreement protocol based on network dynamics
JP4462806B2 (ja) * 2002-02-22 2010-05-12 日本電気株式会社 量子暗号鍵配布システム
JP2004030882A (ja) * 2002-04-30 2004-01-29 Toshiba Corp レンダリング装置、コピー制御方法及びプログラム
US7403623B2 (en) * 2002-07-05 2008-07-22 Universite Libre De Bruxelles High-rate quantum key distribution scheme relying on continuously phase and amplitude-modulated coherent light pulses
US7457416B1 (en) 2002-07-17 2008-11-25 Bbn Technologies Corp. Key distribution center for quantum cryptographic key distribution networks
KR100631242B1 (ko) * 2002-09-26 2006-10-02 미쓰비시덴키 가부시키가이샤 양자 송신 장치, 양자 수신 장치, 양자 암호 통신 장치 및양자 암호 통신 방법
US7627126B1 (en) 2002-10-15 2009-12-01 Bbn Technologies Corp. Systems and methods for implementing path length control for quantum cryptographic systems
US20060222180A1 (en) * 2002-10-15 2006-10-05 Elliott Brig B Chip-scale transmitter for quantum cryptography
JP4173422B2 (ja) * 2002-12-04 2008-10-29 日本電信電話株式会社 量子鍵配送方法及び量子鍵配送システム
US7236597B2 (en) * 2002-12-20 2007-06-26 Bbn Technologies Corp. Key transport in quantum cryptographic networks
US7460670B1 (en) * 2002-12-20 2008-12-02 Bbn Technologies Corp. Systems and methods for managing quantum cryptographic networks
GB2397452B (en) * 2003-01-16 2005-07-13 Toshiba Res Europ Ltd A quantum communication system
US7227955B2 (en) * 2003-02-07 2007-06-05 Magiq Technologies, Inc. Single-photon watch dog detector for folded quantum key distribution system
GB2399220B (en) * 2003-03-06 2005-07-13 Toshiba Res Europ Ltd Photonic quantum information system using unpolarised light
US7706535B1 (en) 2003-03-21 2010-04-27 Bbn Technologies Corp. Systems and methods for implementing routing protocols and algorithms for quantum cryptographic key transport
US7430295B1 (en) 2003-03-21 2008-09-30 Bbn Technologies Corp. Simple untrusted network for quantum cryptography
US7512242B2 (en) * 2003-03-21 2009-03-31 Bbn Technologies Corp. Systems and methods for quantum cryptographic key transport
US20040184615A1 (en) * 2003-03-21 2004-09-23 Elliott Brig Barnum Systems and methods for arbitrating quantum cryptographic shared secrets
GB2404103B (en) 2003-07-15 2005-06-29 Toshiba Res Europ Ltd A quantum communication system
EP1687921A4 (en) * 2003-11-12 2008-03-12 Magiq Technologies Inc DETECTOR AUTOCALIBRATION IN QKD SYSTEMS
WO2005057927A1 (en) * 2003-11-13 2005-06-23 Magiq Technologies, Inc Qkd with classical bit encryption
JP4765000B2 (ja) * 2003-11-20 2011-09-07 富士電機株式会社 絶縁ゲート型半導体装置
KR100584433B1 (ko) * 2003-11-25 2006-05-26 삼성전자주식회사 차등 편광 변조 방식의 광전송 시스템
US7974540B2 (en) 2003-11-28 2011-07-05 Japan Science And Technology Agency Communication system and communication method using the same
CN1651947A (zh) 2004-02-02 2005-08-10 中国科学技术大学 一种偏振控制编码方法、编码器和量子密钥分配系统
US7844186B2 (en) * 2004-02-20 2010-11-30 Alcatel-Lucent Usa Inc. Method and apparatus for optical transmission
US7515716B1 (en) 2004-02-26 2009-04-07 Bbn Technologies Corp. Systems and methods for reserving cryptographic key material
CN1943161B (zh) * 2004-03-02 2010-05-26 Magiq技术公司 用于量子密钥分发的调制器定时
US7720228B2 (en) * 2004-03-02 2010-05-18 Magiq Technologies, Inc Modulator autocalibration methods for quantum key distribution
US7697693B1 (en) 2004-03-09 2010-04-13 Bbn Technologies Corp. Quantum cryptography with multi-party randomness
WO2005096540A1 (en) * 2004-03-19 2005-10-13 Magiq Technologies, Inc. Autocalibration for qkd systems
JP4695594B2 (ja) * 2004-07-12 2011-06-08 三菱電機株式会社 光子検出装置および光通信システム
WO2006011215A1 (ja) 2004-07-29 2006-02-02 Mitsubishi Denki Kabushiki Kaisha 場所状態管理システム、無線タグ読取装置および管理装置
US7660533B1 (en) * 2004-08-04 2010-02-09 The United States Of America As Represented By The Secretary Of The Army Quantum Fourier transform based information transmission system and method
US8503885B2 (en) * 2004-08-04 2013-08-06 The United States Of America As Represented By The Secretary Of The Army Quantum based information transmission system and method
EP1787420A2 (en) * 2004-09-07 2007-05-23 MagiQ Technologies, Inc. Systems and methods for multiplexing qkd channels
JP2008514119A (ja) * 2004-09-15 2008-05-01 マジック テクノロジーズ,インコーポレーテッド Wdmネットワーク用のデュアルゲートqkdシステム
JP2006109026A (ja) * 2004-10-05 2006-04-20 Hitachi Ltd 光信号通信装置
JP4654649B2 (ja) * 2004-10-07 2011-03-23 ソニー株式会社 量子暗号通信方法、および量子暗号通信装置、並びに量子暗号通信システム
US7822342B1 (en) 2004-11-15 2010-10-26 The United States Of America As Represented By The Secretary Of The Navy Secure quantum optical communications system and method
FR2879381B1 (fr) * 2004-12-15 2008-12-26 Thales Sa Systeme de distribution quantique de cle de cryptage a variables continues
JP4504833B2 (ja) * 2005-02-17 2010-07-14 富士通株式会社 秘密鍵配送システム
US7706536B2 (en) * 2005-05-17 2010-04-27 Alcatel-Lucent Usa Inc. Phase locking in a multi-channel quantum communication system
US8428259B2 (en) 2005-06-09 2013-04-23 General Dynamics Advanced Information Systems Apparatus and method for all-optical encryption and decryption of an optical signal
JP4662040B2 (ja) * 2005-07-08 2011-03-30 日本電気株式会社 通信システムおよびその同期制御方法
US7809143B2 (en) * 2005-10-24 2010-10-05 Magiq Technologies, Inc. QKD system with synchronization channel verification
JP4748311B2 (ja) * 2005-10-31 2011-08-17 日本電気株式会社 微弱光の光パワー測定方法および装置、それを用いた光通信システム
US20070130455A1 (en) * 2005-12-06 2007-06-07 Elliott Brig B Series encryption in a quantum cryptographic system
US20070133798A1 (en) * 2005-12-14 2007-06-14 Elliott Brig B Quantum cryptography on a multi-drop optical network
US8082443B2 (en) 2006-01-09 2011-12-20 Bbnt Solutions Llc. Pedigrees for quantum cryptography
JP2007274300A (ja) * 2006-03-31 2007-10-18 Hitachi Information & Communication Engineering Ltd 共通鍵暗号通信における同期処理方法
US7574137B1 (en) * 2006-05-05 2009-08-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multi-wavelength time-coincident optical communications system and methods thereof
GB2441790A (en) * 2006-09-12 2008-03-19 Qinetiq Ltd Electro-optic waveguide polarisation modulator
US7853020B2 (en) * 2007-09-19 2010-12-14 Mogiq Technologies, Inc. Systems and methods for enhanced quantum key formation using an actively compensated QKD system
JP5631743B2 (ja) * 2008-01-25 2014-11-26 キネテイツク・リミテツド 量子暗号装置
GB0801395D0 (en) * 2008-01-25 2008-03-05 Qinetiq Ltd Network having quantum key distribution
GB0801408D0 (en) * 2008-01-25 2008-03-05 Qinetiq Ltd Multi-community network with quantum key distribution
GB0801492D0 (en) * 2008-01-28 2008-03-05 Qinetiq Ltd Optical transmitters and receivers for quantum key distribution
GB0809045D0 (en) * 2008-05-19 2008-06-25 Qinetiq Ltd Quantum key distribution involving moveable key device
GB0809044D0 (en) * 2008-05-19 2008-06-25 Qinetiq Ltd Multiplexed QKD
GB0809038D0 (en) 2008-05-19 2008-06-25 Qinetiq Ltd Quantum key device
CN101645770B (zh) * 2008-08-05 2012-05-23 中国科学院物理研究所 一种安全即时通信系统
GB0819665D0 (en) * 2008-10-27 2008-12-03 Qinetiq Ltd Quantum key dsitribution
GB0822253D0 (en) * 2008-12-05 2009-01-14 Qinetiq Ltd Method of establishing a quantum key for use between network nodes
GB0822254D0 (en) * 2008-12-05 2009-01-14 Qinetiq Ltd Method of performing authentication between network nodes
GB0822356D0 (en) * 2008-12-08 2009-01-14 Qinetiq Ltd Non-linear optical device
US8850281B2 (en) * 2009-05-12 2014-09-30 Empire Technology Development Llc Digital signatures
US9032476B2 (en) * 2009-05-12 2015-05-12 Empire Technology Development Llc Secure authentication
US8379856B2 (en) * 2009-06-17 2013-02-19 Empire Technology Development Llc Hardware based cryptography
GB0917060D0 (en) 2009-09-29 2009-11-11 Qinetiq Ltd Methods and apparatus for use in quantum key distribution
GB201020424D0 (en) 2010-12-02 2011-01-19 Qinetiq Ltd Quantum key distribution
GB2536248B (en) 2015-03-10 2021-10-20 Univ Bristol Optical apparatus
US10784969B2 (en) * 2016-02-18 2020-09-22 Apriori Network Systems, Llc. Secured fiber link system
US10284288B2 (en) * 2016-02-18 2019-05-07 Apriori Network Systems, Llc Secured fiber link system
US10763962B2 (en) * 2016-02-18 2020-09-01 Apriori Network Systems, Llc. Secured fiber link system
WO2019063537A1 (en) * 2017-09-28 2019-04-04 British Telecommunications Public Limited Company CONTROLLING COMMUNICATIONS IN RELATION TO LOCAL NETWORKS
US11290149B2 (en) 2017-10-10 2022-03-29 British Telecommunications Public Limited Company Identifying interfering links in local area networks
US10439713B1 (en) * 2018-03-15 2019-10-08 The Boeing Company System and method for receiving signal information for networking using a free space optical link
US11664983B2 (en) * 2020-09-22 2023-05-30 Mellanox Technologies, Ltd. Hybrid quantum key distribution link for an optical transceiver

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311592A (en) * 1986-06-11 1994-05-10 Mcdonnell Douglas Corporation Sagnac interferometer based secure communication system
US5191614A (en) * 1988-11-14 1993-03-02 Mcdonnell Douglas Corporation Secure communication system
US4965856A (en) * 1989-05-23 1990-10-23 Arbus Inc. Secure optical-fiber communication system
GB9018973D0 (en) * 1990-08-31 1990-10-17 Secr Defence Optical communications system
US5243649A (en) * 1992-09-29 1993-09-07 The Johns Hopkins University Apparatus and method for quantum mechanical encryption for the transmission of secure communications
DE69309496T2 (de) * 1992-12-24 1997-08-07 British Telecommunications Public Ltd. Co., London System und verfahren zur schluesselverteilung unter verwendung von quanten-kryptographie
US5339182A (en) * 1993-02-19 1994-08-16 California Institute Of Technology Method and apparatus for quantum communication employing nonclassical correlations of quadrature-phase amplitudes
US5307410A (en) * 1993-05-25 1994-04-26 International Business Machines Corporation Interferometric quantum cryptographic key distribution system
US5515438A (en) * 1993-11-24 1996-05-07 International Business Machines Corporation Quantum key distribution using non-orthogonal macroscopic signals

Also Published As

Publication number Publication date
AU7544094A (en) 1995-03-27
WO1995007584A1 (en) 1995-03-16
US5757912A (en) 1998-05-26
DE69408152D1 (de) 1998-02-26
EP0717897A1 (en) 1996-06-26
EP0717897B1 (en) 1998-01-21
CA2168851A1 (en) 1995-03-16
DE69408152T2 (de) 1998-05-14
JPH09502322A (ja) 1997-03-04
ES2111950T3 (es) 1998-03-16
JP2951408B2 (ja) 1999-09-20
CA2168851C (en) 1999-11-02
AU678049B2 (en) 1997-05-15

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