MY149425A - A system and method for exchangeable quantum key distribution - Google Patents

A system and method for exchangeable quantum key distribution

Info

Publication number
MY149425A
MY149425A MYPI2010005726A MY149425A MY 149425 A MY149425 A MY 149425A MY PI2010005726 A MYPI2010005726 A MY PI2010005726A MY 149425 A MY149425 A MY 149425A
Authority
MY
Malaysia
Prior art keywords
photon
deterministic
encoded
polarization
protocol
Prior art date
Application number
Inventor
Suryadi
Mohd Norzaliman Bin Mohd Zain
Mohd Fared Abdul Khir
Zalhan Yusof Md
Suhairi Saharudin
Mohamed Ridza Wahiddin
Original Assignee
Mimos Berhad
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 Mimos Berhad filed Critical Mimos Berhad
Priority to MYPI2010005726 priority Critical patent/MY149425A/en
Priority to PCT/MY2011/000160 priority patent/WO2012074369A1/en
Publication of MY149425A publication Critical patent/MY149425A/en

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
    • H04L9/0858—Details about key distillation or coding, e.g. reconciliation, error correction, privacy amplification, polarisation coding or phase coding
    • 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
    • H04B10/70—Photonic quantum communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

THE PRESENT INVENTION PROVIDES A SYSTEM (100) FOR PERFORMING QUANTUM KEY DISTRIBUTION BY SECURELY SWITCHING BETWEEN DETERMINISTIC AND NON-DETERMINISTIC PROTOCOL. THE SYSTEM COMPRISING AT LEAST ONE RANDOM POLARIZATION ENCODED PHOTON SOURCE (102, 104), AT LEAST ONE OPTICAL SWITCH (108), AT LEAST ONE SET OF DETECTOR FOR DETERMINISTIC PROTOCOL (116) AND A SET OF DETECTOR FOR NON-DETERMINISTIC PROTOCOL (122) AND A PLURALITY OF ELECTRONIC LOGIC GATES (118,120). THE SAID RANDOM POLARIZATION ENCODED PHOTON SOURCE (102, 104) COMPRISING ATTENUATED PULSE LASER PUMPS AND OPTICAL COMPONENTS FOR RANDOMLY GENERATING POLARIZATION PHOTON STATES WHILE THE SAID OPTICAL SWITCH (108) HAVING AT LEAST ONE INPUT PORT AND AT LEAST TWO OUTPUT PORTS FOR SWITCHING SINGLE PHOTONS. THE SAID POLARIZATION ENCODED PHOTON FLIPPER (110) RANDOMLY FLIP POLARIZATION STATE OF ENCODED PHOTON WHILE THE SAID DETECTOR FOR DETERMINISTIC PROTOCOL (116) AND DETECTOR FOR NON- DETERMINISTIC PROTOCOL (122) HAVING ACTIVE BASIS SELECTOR (114) AND OPTICAL COMPONENTS FOR MEASURING AND DISCRIMINATING SINGLE PHOTON POLARIZATION STATES AND THE SAID ELECTRONIC LOGIC GATES COMPRISING ELECTRONIC CONTROLLER, TIMER AND ANALYZER (118, 120) FOR CONTROLLING POLARIZATION STATES OF PHOTON TO BE SENT, CONTROLLING OPTICAL SWITCH BASED ON QUANTUM BIT ERROR RATE (QBER), CONTROLLING POLARIZATION ENCODED PHOTON FLIPPER (110) AND CONTROLLING ACTIVE BASIS SELECTOR (114). ANOTHER EMBODIMENT OF THE PRESENT INVENTION PROVIDES A METHOD (200) FOR PERFORMING QUANTUM KEY DISTRIBUTION BY SECURELY SWITCHING BETWEEN DETERMINISTIC AND NON-DETERMINISTIC PROTOCOL. THE METHOD COMPRISING STEPS OF GENERATING RANDOM POLARIZATION ENCODED PHOTONS (202), TRANSMITTING ENCODED PHOTONS TO OPTICAL SWITCH (204), SENDING ENCODED PHOTON TO POLARIZATION ENCODED PHOTON FLIPPER TO FLIP POLARIZATION STATE OF ENCODED PHOTON (206), ROTATING POLARIZATION STATE OF ENCODED PHOTON USING ACTIVE BASIS SELECTOR (208), FORWARDING ENCODED PHOTON TO DETERMINISTIC DETECTOR TO MEASURE POLARIZATION STATE OF ENCODED PHOTON (210), CALCULATING QUANTUM BIT ERROR RATE (QBER) TO DETERMINE TYPE OF PROTOCOL TO BE USED (212), DETERMINING EXCHANGE OF DETERMINISTIC PROTOCOL TO NON-DETERMINISTIC PROTOCOL BASED ON CALCULATION OF QUANTUM BIT ERROR RATE (QBER) (214), SWITCHING ENCODED PHOTON TO NON-DETERMINISTIC DETECTOR WHEN QUANTUM BIT ERROR RATE (QBER) IN DETERMINISTIC PROTOCOL IS GREATER THAN MAXIMUM THRESHOLD VALUE (216) AND PERFORMING ERROR CORRECTION WHEN QUANTUM BIT ERROR RATE (QBER) IS LOWER THAN MAXIMUM THRESHOLD VALUE TO CONTINUE WITH DETERMINISTIC PROTOCOL (226).
MYPI2010005726 2010-12-02 2010-12-02 A system and method for exchangeable quantum key distribution MY149425A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2010005726 MY149425A (en) 2010-12-02 2010-12-02 A system and method for exchangeable quantum key distribution
PCT/MY2011/000160 WO2012074369A1 (en) 2010-12-02 2011-06-30 A system and method for exchangeable quantum key distribution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI2010005726 MY149425A (en) 2010-12-02 2010-12-02 A system and method for exchangeable quantum key distribution

Publications (1)

Publication Number Publication Date
MY149425A true MY149425A (en) 2013-08-30

Family

ID=46172129

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2010005726 MY149425A (en) 2010-12-02 2010-12-02 A system and method for exchangeable quantum key distribution

Country Status (2)

Country Link
MY (1) MY149425A (en)
WO (1) WO2012074369A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106254072B (en) * 2016-10-18 2022-11-25 清华大学 Quantum key distribution method
JP6666286B2 (en) 2017-03-08 2020-03-13 株式会社東芝 Quantum communication device, quantum communication system and quantum communication method
CN108446099B (en) * 2018-05-02 2024-05-14 如般量子科技有限公司 Source-independent high-dimensional time-coded quantum random number generator
CN108540282A (en) * 2018-05-02 2018-09-14 如般量子科技有限公司 HD-QKD systems based on Polarization Modulation time encoding
US11329730B2 (en) 2019-09-26 2022-05-10 Eagle Technology, Llc Quantum communication system having time to frequency conversion and associated methods
US11418330B2 (en) 2019-10-21 2022-08-16 Eagle Technology, Llc Quantum communication system that switches between quantum key distribution (QKD) protocols and associated methods
US11240018B2 (en) 2019-10-30 2022-02-01 Eagle Technology, Llc Quantum communications system having quantum key distribution and using a talbot effect image position and associated methods
US11082216B2 (en) 2019-10-30 2021-08-03 Eagle Technology, Llc Quantum communication system having quantum key distribution and using a midpoint of the talbot effect image position and associated methods
US11050559B2 (en) 2019-11-19 2021-06-29 Eagle Technology, Llc Quantum communications system using Talbot effect image position and associated methods
CN111130782B (en) * 2020-03-31 2020-08-28 北京中创为南京量子通信技术有限公司 Quantum key distribution networking method and system
EP4040715A1 (en) * 2021-02-05 2022-08-10 Eutelsat SA Quantum key distribution systems and associated methods
US11558123B2 (en) 2021-02-19 2023-01-17 Eagle Technology, Llc Quantum communications system having stabilized quantum communications channel and associated methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070076887A1 (en) * 2005-09-30 2007-04-05 Nortel Networks Limited Double phase encoding quantum key distribution
US7583803B2 (en) * 2006-07-28 2009-09-01 Magiq Technologies, Inc. QKD stations with fast optical switches and QKD systems using same
US7881473B2 (en) * 2007-05-25 2011-02-01 The Boeing Company Quantum key distribution system and method
US8170214B2 (en) * 2008-10-01 2012-05-01 Hewlett-Packard Development Company, L.P. QKD transmitter and transmission method

Also Published As

Publication number Publication date
WO2012074369A1 (en) 2012-06-07

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