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MY153911A - Dual coding coherent phase protocol - Google Patents

Dual coding coherent phase protocol

Info

Publication number
MY153911A
MY153911A MYPI2010004432A MYPI2010004432A MY153911A MY 153911 A MY153911 A MY 153911A MY PI2010004432 A MYPI2010004432 A MY PI2010004432A MY PI2010004432 A MYPI2010004432 A MY PI2010004432A MY 153911 A MY153911 A MY 153911A
Authority
MY
Malaysia
Prior art keywords
bits
phase
intensity
wcp
modulator
Prior art date
Application number
MYPI2010004432A
Inventor
Norshamsuri Ali Hasim
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 MYPI2010004432A priority Critical patent/MY153911A/en
Priority to PCT/MY2010/000303 priority patent/WO2012039595A1/en
Publication of MY153911A publication Critical patent/MY153911A/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

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)

Abstract

AN APPARATUS AND METHOD (100) FOR DUAL CODING COHERENT PHASE PROTOCOL IN QUANTUM KEY DISTRIBUTION (QKD) SYSTEM USING A COHERENT LASER SOURCE (102), AN INTENSITY MODULATOR (103) AND A PHASE MODULATOR (105) IS DISCLOSED. THE SYSTEM COMPRISES TWO LEVELS OF ENCODING AND SIX TYPES OF DECOY BITS TO FURTHER IMPROVE SECURITY OF THE SECRET KEYS. THE SYSTEM COMPRISES AN INTENSITY MODULATOR FOR INTENSITY CODING WHEREIN A SECRET KEY IS CODED, MEANS TO GENERATE A TRAIN OF PULSES WITH BITS ?1? FOR WEAK COHERENCE PULSE (WCP AND BITS ?0? FOR VACUUM PULSE; AND A PHASE MODULATOR FOR DIFFERENTIAL PHASE CODING COMPRISES THE INTENSITY CODED SECRET KEY FURTHER CODED WITH BITS ?1? FOR PHASE DIFFERENCE OF 0; BITS ?0? FOR PHASE DIFFERENCE OF ? FOR WEAK COHERENCE PULSE (WCP); AND DECOY BITS FOR OTHER ORIENTATION PHASE DIFFERENCE OF VACUUM PULSE AND WCP.
MYPI2010004432A 2010-09-23 2010-09-23 Dual coding coherent phase protocol MY153911A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2010004432A MY153911A (en) 2010-09-23 2010-09-23 Dual coding coherent phase protocol
PCT/MY2010/000303 WO2012039595A1 (en) 2010-09-23 2010-11-29 Dual coding coherent phase protocol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI2010004432A MY153911A (en) 2010-09-23 2010-09-23 Dual coding coherent phase protocol

Publications (1)

Publication Number Publication Date
MY153911A true MY153911A (en) 2015-04-15

Family

ID=45874011

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2010004432A MY153911A (en) 2010-09-23 2010-09-23 Dual coding coherent phase protocol

Country Status (2)

Country Link
MY (1) MY153911A (en)
WO (1) WO2012039595A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013048671A1 (en) 2011-09-30 2013-04-04 Los Alamos National Security, Llc Polarization tracking system for free-space optical communication, including quantum communication
US9819418B2 (en) 2012-08-17 2017-11-14 Los Alamos National Security, Llc Quantum communications system with integrated photonic devices
GB2571521B (en) * 2018-02-22 2021-07-07 Toshiba Kk A transmitter for a quantum communication system, a quantum communication system and a method of generating intensity modulated Photon pulses
CN108880802B (en) * 2018-07-11 2020-11-24 长春大学 Classical network access quantum key distribution network encryption fusion control method
CN109167663B (en) * 2018-10-30 2020-10-27 成都信息工程大学 A method and system for multi-user quantum key distribution based on dense coding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070127932A1 (en) * 2005-12-01 2007-06-07 Bing Qi Method, system and apparatus for optical phase modulation based on frequency shift
GB0801492D0 (en) * 2008-01-28 2008-03-05 Qinetiq Ltd Optical transmitters and receivers for quantum key distribution
GB0809044D0 (en) * 2008-05-19 2008-06-25 Qinetiq Ltd Multiplexed QKD

Also Published As

Publication number Publication date
WO2012039595A1 (en) 2012-03-29

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