WO2002082714A3 - Vorrichtung und verfahren für die quantenkryptographie - Google Patents

Vorrichtung und verfahren für die quantenkryptographie Download PDF

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Publication number
WO2002082714A3
WO2002082714A3 PCT/EP2002/003825 EP0203825W WO02082714A3 WO 2002082714 A3 WO2002082714 A3 WO 2002082714A3 EP 0203825 W EP0203825 W EP 0203825W WO 02082714 A3 WO02082714 A3 WO 02082714A3
Authority
WO
WIPO (PCT)
Prior art keywords
quantum
way
light signals
signal sources
quantum cryptography
Prior art date
Application number
PCT/EP2002/003825
Other languages
English (en)
French (fr)
Other versions
WO2002082714A2 (de
Inventor
Harald Weinfurter
Christian Kurtsiefer
Original Assignee
Univ Muenchen L Maximilians
Harald Weinfurter
Christian Kurtsiefer
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 Univ Muenchen L Maximilians, Harald Weinfurter, Christian Kurtsiefer filed Critical Univ Muenchen L Maximilians
Priority to EP02759800A priority Critical patent/EP1374475A2/de
Priority to AU2002338378A priority patent/AU2002338378A1/en
Priority to US10/473,771 priority patent/US7400724B2/en
Publication of WO2002082714A2 publication Critical patent/WO2002082714A2/de
Publication of WO2002082714A3 publication Critical patent/WO2002082714A3/de

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
    • 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
    • H04L9/0852—Quantum cryptography

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)
  • Spectrometry And Color Measurement (AREA)

Abstract

Die vorliegenden Erfindung betrifft ein Quantenkryptographiesystem zur sicheren Schlüsselerzeugung, insbesondere mit Signalquellen und Analysekanälen. Die Signalquellen sind derart räumlich getrennt angeordnet, daß Wellenfronten der von ihnen emittierten Lichtsignale teilweise am Eingang des Quantenkanals überlappen. Die Analysekanäle sind so angeordnet, daß die Wellenfront der aus dem Quantenkanal kommenden Lichtsignale räumlich geteilt wird und mindestens zwei der Teile in einem quantenmechanischen Zustand analysiert werden.
PCT/EP2002/003825 2001-04-06 2002-04-05 Vorrichtung und verfahren für die quantenkryptographie WO2002082714A2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02759800A EP1374475A2 (de) 2001-04-06 2002-04-05 Vorrichtung und verfahren für die quantenkryptographie
AU2002338378A AU2002338378A1 (en) 2001-04-06 2002-04-05 Device and method for use in quantum cryptography
US10/473,771 US7400724B2 (en) 2001-04-06 2002-04-05 Device and method for use in quantum crytography

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10117272A DE10117272B4 (de) 2001-04-06 2001-04-06 Vorrichtung und Verfahren für die Quantenkryptographie
DE10117272.9 2001-04-06

Publications (2)

Publication Number Publication Date
WO2002082714A2 WO2002082714A2 (de) 2002-10-17
WO2002082714A3 true WO2002082714A3 (de) 2003-09-25

Family

ID=7680689

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/003825 WO2002082714A2 (de) 2001-04-06 2002-04-05 Vorrichtung und verfahren für die quantenkryptographie

Country Status (5)

Country Link
US (1) US7400724B2 (de)
EP (1) EP1374475A2 (de)
AU (1) AU2002338378A1 (de)
DE (1) DE10117272B4 (de)
WO (1) WO2002082714A2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030063751A1 (en) * 2001-09-20 2003-04-03 Aiden Bruen Key agreement protocol based on network dynamics
JP4632652B2 (ja) * 2003-10-10 2011-02-16 日本電気株式会社 量子暗号鍵配布システム及びそれに用いる同期方法
JP5142095B2 (ja) * 2003-11-28 2013-02-13 独立行政法人科学技術振興機構 通信システム及びそれを用いた通信方法
US20060018476A1 (en) * 2004-06-23 2006-01-26 Nickel George H Key path generation and exchange of cryptographic keys using path length noise
US20070162743A1 (en) * 2006-01-12 2007-07-12 Savant Protection, Inc. Sliding acoustical signatures
US7722514B2 (en) * 2007-10-23 2010-05-25 Bvp Holding, Inc. Multi-directional body swing, turn and twist trainer with interchangeable and adjustable attachments
EP3335368B1 (de) * 2015-08-14 2022-08-03 Nokia Technologies Oy System zur verteilung von stufenlosem variablem on-chip-quantenschlüssel mit polarisation und frequenzmultiplexing
GB2559801B (en) * 2017-02-20 2021-04-28 Toshiba Kk An optical quantum communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999285A (en) * 1997-05-23 1999-12-07 The United States Of America As Represented By The Secretary Of The Army Positive-operator-valued-measure receiver for quantum cryptography
US6188768B1 (en) * 1998-03-31 2001-02-13 International Business Machines Corporation Autocompensating quantum cryptographic key distribution system based on polarization splitting of light

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5307410A (en) * 1993-05-25 1994-04-26 International Business Machines Corporation Interferometric quantum cryptographic key distribution system
EP0717896B1 (de) * 1993-09-09 1999-01-07 BRITISH TELECOMMUNICATIONS public limited company System und verfahren zur schlüsselverteilung unter verwendung von quanten-kryptographie
JP2951408B2 (ja) * 1993-09-09 1999-09-20 ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー 量子暗合化システムおよび方法
GB9320793D0 (en) * 1993-10-08 1993-12-08 Secr Defence Cryptographic receiver
CA2254767C (en) * 1996-05-22 2002-04-16 British Telecommunications Public Limited Company Method and apparatus for polarisation-insensitive quantum cryptography
US5732139A (en) * 1996-08-26 1998-03-24 Lo; Hoi-Kwong Quantum cryptographic system with reduced data loss
DE19823849B4 (de) * 1998-05-28 2004-09-16 Deutsche Telekom Ag Verfahren und Vorrichtung zur Erzeugung von wahlweise Einzelphotonen oder Photonenpaaren in mindestens einem von zwei optischen Kanälen
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999285A (en) * 1997-05-23 1999-12-07 The United States Of America As Represented By The Secretary Of The Army Positive-operator-valued-measure receiver for quantum cryptography
US6188768B1 (en) * 1998-03-31 2001-02-13 International Business Machines Corporation Autocompensating quantum cryptographic key distribution system based on polarization splitting of light

Also Published As

Publication number Publication date
US7400724B2 (en) 2008-07-15
AU2002338378A1 (en) 2002-10-21
DE10117272A1 (de) 2002-10-24
US20040156502A1 (en) 2004-08-12
DE10117272B4 (de) 2005-04-28
WO2002082714A2 (de) 2002-10-17
EP1374475A2 (de) 2004-01-02

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