ATE402534T1 - Handle-dechiffrierungssystem und handle- dechiffrierungsverfahren und programm - Google Patents

Handle-dechiffrierungssystem und handle- dechiffrierungsverfahren und programm

Info

Publication number
ATE402534T1
ATE402534T1 AT02711464T AT02711464T ATE402534T1 AT E402534 T1 ATE402534 T1 AT E402534T1 AT 02711464 T AT02711464 T AT 02711464T AT 02711464 T AT02711464 T AT 02711464T AT E402534 T1 ATE402534 T1 AT E402534T1
Authority
AT
Austria
Prior art keywords
decryption
shuffling
center
data list
public
Prior art date
Application number
AT02711464T
Other languages
English (en)
Inventor
Kazue Sako
Kengo Mori
Original Assignee
Nec Corp
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 Corp filed Critical Nec Corp
Application granted granted Critical
Publication of ATE402534T1 publication Critical patent/ATE402534T1/de

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
    • H04L9/32—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
    • H04L9/3263—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 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H04L9/3073—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • 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
    • H04L9/3247—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 involving digital signatures
    • 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
    • H04L2209/42—Anonymization, e.g. involving pseudonyms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Computer And Data Communications (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Executing Machine-Instructions (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
AT02711464T 2001-02-13 2002-02-12 Handle-dechiffrierungssystem und handle- dechiffrierungsverfahren und programm ATE402534T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001035030A JP3788246B2 (ja) 2001-02-13 2001-02-13 匿名復号システム及び匿名復号方法

Publications (1)

Publication Number Publication Date
ATE402534T1 true ATE402534T1 (de) 2008-08-15

Family

ID=18898536

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02711464T ATE402534T1 (de) 2001-02-13 2002-02-12 Handle-dechiffrierungssystem und handle- dechiffrierungsverfahren und programm

Country Status (8)

Country Link
US (1) US7376833B2 (de)
EP (1) EP1361693B1 (de)
JP (1) JP3788246B2 (de)
AT (1) ATE402534T1 (de)
CA (1) CA2441496C (de)
DE (1) DE60227781D1 (de)
ES (1) ES2307734T3 (de)
WO (1) WO2002065695A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3901471B2 (ja) * 2001-05-18 2007-04-04 日本電気株式会社 証明付シャッフル復号システムと証明付シャッフル復号方法、シャッフル復号検証方法
EP1720144A4 (de) 2004-01-26 2013-10-23 Nec Corp Verfahren und einrichtung zum berechnen einer funktion aus vielen eingaben
JP4715518B2 (ja) 2004-01-26 2011-07-06 日本電気株式会社 匿名電子投票システム及び匿名電子投票方法
JP4867916B2 (ja) * 2005-02-28 2012-02-01 日本電気株式会社 シャッフル復号正当性証明装置と方法、シャッフル復号検証装置と方法、プログラムと記録媒体
JP4771053B2 (ja) * 2005-05-27 2011-09-14 日本電気株式会社 統合シャッフル正当性証明装置、証明統合装置、統合シャッフル正当性検証装置及びミックスネットシステム
US8061589B2 (en) * 2006-10-20 2011-11-22 Barry Cohen Electronic voting system
WO2009014215A1 (ja) * 2007-07-26 2009-01-29 Nec Corporation 集計システム、復号結果の開示方法及びプログラム
JP5369744B2 (ja) * 2009-02-13 2013-12-18 三菱電機株式会社 情報収集システム、端末装置、情報収集用プログラム、端末用プログラム
US8488783B2 (en) * 2010-02-19 2013-07-16 Nokia Method and apparatus for applying recipient criteria in identity-based encryption
JP5498406B2 (ja) * 2011-01-21 2014-05-21 日本電信電話株式会社 マッチングシステム、マッチングシステムの方法
US9608813B1 (en) * 2013-06-13 2017-03-28 Amazon Technologies, Inc. Key rotation techniques
CN103780382B (zh) * 2014-01-13 2017-01-18 华南理工大学 一种基于超球面的多变量公钥加密/解密系统及方法
KR102371529B1 (ko) 2020-02-14 2022-03-07 구글 엘엘씨 다수 당사자 도달 및 빈도 추정 보안화

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682430A (en) 1995-01-23 1997-10-28 Nec Research Institute, Inc. Secure anonymous message transfer and voting scheme
JP2773737B2 (ja) 1996-04-19 1998-07-09 日本電気株式会社 集計結果分析システム
US6049613A (en) * 1997-03-07 2000-04-11 Jakobsson; Markus Method and apparatus for encrypting, decrypting, and providing privacy for data values
US6570989B1 (en) * 1998-04-27 2003-05-27 Matsushita Electric Industrial Co., Ltd. Cryptographic processing apparatus, cryptographic processing method, and storage medium storing cryptographic processing program for realizing high-speed cryptographic processing without impairing security
EP1054527B1 (de) * 1999-05-19 2010-08-18 Nippon Telegraph And Telephone Corporation Prüfbarer anonymer Kanal
DE60114833T2 (de) * 2000-03-24 2006-04-13 Dategrity Corp., Bellevue Überprüfbare, geheime mischung von verschlüsselten daten wie z. b. elgamal-verschlüsselte daten für gesicherte mehrinstanzwahlen

Also Published As

Publication number Publication date
CA2441496C (en) 2007-07-17
EP1361693B1 (de) 2008-07-23
US20040114763A1 (en) 2004-06-17
ES2307734T3 (es) 2008-12-01
JP3788246B2 (ja) 2006-06-21
DE60227781D1 (de) 2008-09-04
CA2441496A1 (en) 2002-08-22
JP2002237810A (ja) 2002-08-23
WO2002065695A1 (en) 2002-08-22
EP1361693A1 (de) 2003-11-12
US7376833B2 (en) 2008-05-20
EP1361693A4 (de) 2006-09-06

Similar Documents

Publication Publication Date Title
GB0208858D0 (en) Method and apparatus for encrypting/decrypting data
ATE402534T1 (de) Handle-dechiffrierungssystem und handle- dechiffrierungsverfahren und programm
EP1606905B1 (de) Geschützter rückkanal vom digitalen rechte verwaltenden dongle
WO2001097480A3 (en) System and method for controlling the access to digital works through a network
WO2003041324A3 (en) Biometrics template
EP1154348A9 (de) Vorrichtung zur Dateienverwaltung
US7269736B2 (en) Distributed cryptographic methods and arrangements
DK259489A (da) Reproduktion af sikringskode ved brug af fordelte kodedannelsesdata
EP0706118A4 (de) System zur datensicherung
NO20015908D0 (no) Informasjonsprosesseringssystem og fremgangsmåte
RU2006100274A (ru) Способ создания локальной сети и управления ею
EP1320013A3 (de) Verfahren und Vorrichtung zur Sicherung elektronischer Daten
NO20026003D0 (no) Terminalkommunikasjonssystem
JP2000261427A (ja) 暗号通信端末、暗号通信センター装置、暗号通信システム及び記憶媒体
JP2009545229A (ja) コンテンツを安全に配信する方法、装置およびシステム
US20110055583A1 (en) Method for exchanging a 3d view between a first and a second user
CN1337624A (zh) 保护计算机系统内版权数据的装置、方法
WO2001078491A3 (en) Systems and methods for encrypting/decrypting data using a broker agent
EP1257082A3 (de) Computerbenutzbares Erzeugnis zur Erzeugung einer Datenverschlüsselungs/entschlüsselungsvorrichtung
CA2187923A1 (en) A Method for Providing Blind Access to an Encryption Key
WO2005008398A3 (en) Apparatus and method for a secure broadcast system
JPH10214233A (ja) 情報処理装置、情報処理システム、情報処理方法、プログラム記憶装置、及び鍵の判定方法及び判定装置
ATE542325T1 (de) Verfahren und vorrichtungen zur sicheren verteilung von programminhalt
WO2004034180A3 (en) Processes and systems for enabling secure and controlled distribution and use of information
AU2003227565A1 (en) Method for provision of access

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties