WO2009014215A1 - 集計システム、復号結果の開示方法及びプログラム - Google Patents

集計システム、復号結果の開示方法及びプログラム Download PDF

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Publication number
WO2009014215A1
WO2009014215A1 PCT/JP2008/063420 JP2008063420W WO2009014215A1 WO 2009014215 A1 WO2009014215 A1 WO 2009014215A1 JP 2008063420 W JP2008063420 W JP 2008063420W WO 2009014215 A1 WO2009014215 A1 WO 2009014215A1
Authority
WO
WIPO (PCT)
Prior art keywords
decrypted
converted
verifying
results
compilation system
Prior art date
Application number
PCT/JP2008/063420
Other languages
English (en)
French (fr)
Inventor
Kengo Mori
Kazue Sako
Jun Furukawa
Isamu Teranishi
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Publication of WO2009014215A1 publication Critical patent/WO2009014215A1/ja

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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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/08—Auctions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/46—Secure multiparty computation, e.g. millionaire problem
    • H04L2209/463—Electronic voting

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • Marketing (AREA)
  • Strategic Management (AREA)
  • Economics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Development Economics (AREA)
  • Theoretical Computer Science (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

　候補とその得票との対応関係が秘匿された得票分布の開示機能と、その正当性証明機能を備えた集計システム及び集計結果開示装置の提供。集計システムは、シャッフル復号手段１０２で得られた復号結果を、同一の平文に対して同一の出力を与える所定の変換式により復号結果を変換する復号結果変換手段１１０と、前記変換した復号結果を開示する変換復号結果開示手段１３０と、少なくとも、変換前の復号結果の集合と、変換後の復号結果の集合とが同一であることを検証するための情報を開示することにより、前記変換した復号結果の正当性を証明する変換復号結果証明手段１２０と、を備える。
PCT/JP2008/063420 2007-07-26 2008-07-25 集計システム、復号結果の開示方法及びプログラム WO2009014215A1 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007194242 2007-07-26
JP2007-194242 2007-07-26
JP2007260984 2007-10-04
JP2007-260984 2007-10-04

Publications (1)

Publication Number Publication Date
WO2009014215A1 true WO2009014215A1 (ja) 2009-01-29

Family

ID=40281461

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063420 WO2009014215A1 (ja) 2007-07-26 2008-07-25 集計システム、復号結果の開示方法及びプログラム

Country Status (1)

Country Link
WO (1) WO2009014215A1 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09288658A (ja) * 1996-04-19 1997-11-04 Nec Corp 集計結果分析システム及び集計結果分析方法
JP2002237810A (ja) * 2001-02-13 2002-08-23 Nec Corp 匿名復号システム及び匿名復号方法並びにプログラム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09288658A (ja) * 1996-04-19 1997-11-04 Nec Corp 集計結果分析システム及び集計結果分析方法
JP2002237810A (ja) * 2001-02-13 2002-08-23 Nec Corp 匿名復号システム及び匿名復号方法並びにプログラム

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