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QUANTUM KEY DISTRIBUTION METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION DEVICE

Foreign code F100002190
File No. F100002190
Posted date 2010年4月9日
Country 世界知的所有権機関(WIPO)
International application number 2006JP301039
International publication number WO 2006/078033
Date of international filing 平成18年1月24日(2006.1.24)
Date of international publication 平成18年7月27日(2006.7.27)
Priority data
  • 特願2005-188865 (2005.6.28) JP
  • 特願2005-015466 (2005.1.24) JP
Title QUANTUM KEY DISTRIBUTION METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION DEVICE
Abstract A quantum key distribution method includes: an error probability estimation stepfor estimating an error probability of the transmission data and the reception data;an error correction step for correcting the error of the reception data accordingto the error correction information; a coincidence judgment step for judgingwhether the transmission data coincides with the reception data after the errorcorrection; and an information volume estimation step for estimating an informationvolume leaked to a wire-tapper via a quantum communication path. Furthermore,data is compressed according to the information volume disclosed via the publiccommunication path in the process of processing and the estimated value of theinformation volume leaked tot he wire-tapper via the quantum communication pathand the data after compression is used as an encryption key shared by devices.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • Inter-university Research Institute Corporation / Research Organization of Information and Systems
  • Inventor
  • Watanabe, Yodai
IPC(International Patent Classification)
Specified countries AE AG AL AM AT AU AZ BA BB BE BF BG BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GW HR HU ID IE IL IN IS IT JP KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MC MD MG MK ML MN MR MW MX MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RU SC SD SE SG SI SK SL SM SN SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW
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