JP4095672B2 - 量子暗号装置および方法 - Google Patents
量子暗号装置および方法 Download PDFInfo
- Publication number
- JP4095672B2 JP4095672B2 JP51218398A JP51218398A JP4095672B2 JP 4095672 B2 JP4095672 B2 JP 4095672B2 JP 51218398 A JP51218398 A JP 51218398A JP 51218398 A JP51218398 A JP 51218398A JP 4095672 B2 JP4095672 B2 JP 4095672B2
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- Prior art keywords
- pulse
- station
- pulses
- key encoding
- transmission
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000010287 polarization Effects 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000003111 delayed effect Effects 0.000 claims abstract description 12
- 230000002452 interceptive effect Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 38
- 238000004891 communication Methods 0.000 claims description 31
- 230000010363 phase shift Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 230000002238 attenuated effect Effects 0.000 claims description 3
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 229910013641 LiNbO 3 Inorganic materials 0.000 claims 2
- 230000015556 catabolic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001419 dependent effect Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- 230000001902 propagating effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000018199 S phase Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005610 quantum mechanics Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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)
- Luminescent Compositions (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Holo Graphy (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2583996P | 1996-09-05 | 1996-09-05 | |
| US60/025,839 | 1996-09-05 | ||
| PCT/EP1997/004575 WO1998010560A1 (en) | 1996-09-05 | 1997-08-15 | Quantum cryptography device and method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000517499A JP2000517499A (ja) | 2000-12-26 |
| JP2000517499A5 JP2000517499A5 (enExample) | 2005-04-07 |
| JP4095672B2 true JP4095672B2 (ja) | 2008-06-04 |
Family
ID=21828329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51218398A Expired - Lifetime JP4095672B2 (ja) | 1996-09-05 | 1997-08-15 | 量子暗号装置および方法 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6438234B1 (enExample) |
| EP (1) | EP0923828B1 (enExample) |
| JP (1) | JP4095672B2 (enExample) |
| AT (1) | ATE258733T1 (enExample) |
| AU (1) | AU4206897A (enExample) |
| CA (1) | CA2265553C (enExample) |
| CZ (1) | CZ295335B6 (enExample) |
| DE (1) | DE69727388T2 (enExample) |
| DK (1) | DK0923828T3 (enExample) |
| ES (1) | ES2215238T3 (enExample) |
| WO (1) | WO1998010560A1 (enExample) |
Families Citing this family (138)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP3841261B2 (ja) | 2000-09-11 | 2006-11-01 | 三菱電機株式会社 | 位相変調装置及び位相変調方法 |
| JP4154231B2 (ja) * | 2000-10-04 | 2008-09-24 | ユニベルシテ リブル ドゥ ブリュッセル | 雑音環境における情報の取扱い |
| FR2816779B1 (fr) * | 2000-11-10 | 2003-03-07 | Thomson Csf | Procede et systeme de transmission par cryptographie quantique |
| FR2816780B1 (fr) * | 2000-11-10 | 2003-01-31 | Thomson Csf | Procede et systeme de transmission par cryptographie quantique |
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| RU2671620C1 (ru) * | 2016-12-29 | 2018-11-02 | Общество с ограниченной ответственностью "Международный центр квантовой оптики и квантовых технологий" (ООО "МЦКТ") | Высокоскоростная автокомпенсационная схема квантового распределения ключа |
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| CN111555863B (zh) * | 2019-02-12 | 2022-04-29 | 科大国盾量子技术股份有限公司 | 用于时间相位-偏振联合编码的发送端、编码方法及量子密钥分发系统 |
| EP3985914A4 (en) | 2019-06-17 | 2023-07-12 | KT Corporation | METHOD, DEVICE AND SYSTEM FOR QUANTUM KEY DISTRIBUTION |
| EP3798643B1 (en) * | 2019-09-25 | 2024-05-01 | Lumiker Aplicaciones Tecnologicas S.L. | Optical fiber-based current measuring equipment for measuring the current circulating through a conductor and associated method |
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|---|---|---|---|---|
| ES2101495T3 (es) * | 1992-12-24 | 1997-07-01 | British Telecomm | Sistema y metodo para la distribucion de codigos utilizando criptografia cuantica. |
| US5307410A (en) * | 1993-05-25 | 1994-04-26 | International Business Machines Corporation | Interferometric quantum cryptographic key distribution system |
| WO1995007583A1 (en) * | 1993-09-09 | 1995-03-16 | British Telecommunications Public Limited Company | System and method for key distribution using quantum cryptography |
| WO1995007584A1 (en) * | 1993-09-09 | 1995-03-16 | British Telecommunications Public Limited Company | System and method for quantum cryptography |
| US5515438A (en) * | 1993-11-24 | 1996-05-07 | International Business Machines Corporation | Quantum key distribution using non-orthogonal macroscopic signals |
| WO1996007951A1 (en) | 1994-09-08 | 1996-03-14 | British Telecommunications Plc | Polarisation modulation |
| US5953421A (en) * | 1995-08-16 | 1999-09-14 | British Telecommunications Public Limited Company | 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 |
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1997
- 1997-08-15 AT AT97940111T patent/ATE258733T1/de active
- 1997-08-15 JP JP51218398A patent/JP4095672B2/ja not_active Expired - Lifetime
- 1997-08-15 CZ CZ1999477A patent/CZ295335B6/cs not_active IP Right Cessation
- 1997-08-15 WO PCT/EP1997/004575 patent/WO1998010560A1/en not_active Ceased
- 1997-08-15 ES ES97940111T patent/ES2215238T3/es not_active Expired - Lifetime
- 1997-08-15 EP EP97940111A patent/EP0923828B1/en not_active Expired - Lifetime
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| CA2265553C (en) | 2007-03-13 |
| CA2265553A1 (en) | 1998-03-12 |
| WO1998010560A1 (en) | 1998-03-12 |
| EP0923828A1 (en) | 1999-06-23 |
| ATE258733T1 (de) | 2004-02-15 |
| DK0923828T3 (da) | 2004-05-24 |
| ES2215238T3 (es) | 2004-10-01 |
| US6438234B1 (en) | 2002-08-20 |
| JP2000517499A (ja) | 2000-12-26 |
| DE69727388D1 (de) | 2004-03-04 |
| AU4206897A (en) | 1998-03-26 |
| CZ47799A3 (cs) | 1999-08-11 |
| CZ295335B6 (cs) | 2005-07-13 |
| EP0923828B1 (en) | 2004-01-28 |
| DE69727388T2 (de) | 2004-11-25 |
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