WO2008146547A1 - 鍵交換装置及び鍵交換方法 - Google Patents

鍵交換装置及び鍵交換方法 Download PDF

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Publication number
WO2008146547A1
WO2008146547A1 PCT/JP2008/057507 JP2008057507W WO2008146547A1 WO 2008146547 A1 WO2008146547 A1 WO 2008146547A1 JP 2008057507 W JP2008057507 W JP 2008057507W WO 2008146547 A1 WO2008146547 A1 WO 2008146547A1
Authority
WO
WIPO (PCT)
Prior art keywords
partner
contributing
data
auxiliary data
generating
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/057507
Other languages
English (en)
French (fr)
Inventor
Jun Furukawa
Frederik Armknecht
Joao Girao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
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
Priority to US12/602,057 priority Critical patent/US8638928B2/en
Priority to EP08740577.5A priority patent/EP2154667A4/en
Priority to JP2009516218A priority patent/JPWO2008146547A1/ja
Publication of WO2008146547A1 publication Critical patent/WO2008146547A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04L9/30—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
    • H04L9/08—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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0841—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols
    • H04L9/0844—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols with user authentication or key authentication, e.g. ElGamal, MTI, MQV-Menezes-Qu-Vanstone protocol or Diffie-Hellman protocols using implicitly-certified keys
    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Storage Device Security (AREA)

Abstract

　公開鍵、秘密鍵、識別子、相手公開鍵集合、相手識別子集合、セッション番号及び乱数が入力され、相手識別子集合に属する識別子で識別される複数の相手装置と通信を行い、乱数を用いて貢献乱数を生成し、貢献乱数により貢献データを生成し、貢献データを複数の相手装置に送付し、秘密鍵と公開鍵を用いて、複数の相手装置から受け取った貢献データの全てよりなる貢献データ集合に対する署名である貢献確認署名を生成し、貢献データ集合と貢献乱数とにより、補助データ及び補助データ正当性証明文を生成し、補助データ、補助データ正当性証明文及び貢献確認署名を、複数の相手装置に送付し、相手識別子集合及び相手公開鍵集合と、複数の相手装置から受け取ったデータからなる貢献確認署名集合、補助データ集合及び補助データ正当性証明文集合とより、補助データの正当性を検証し、複数の相手装置から受け取った貢献データ集合と補助データとにより共有鍵を生成する。
PCT/JP2008/057507 2007-05-25 2008-04-17 鍵交換装置及び鍵交換方法 Ceased WO2008146547A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/602,057 US8638928B2 (en) 2007-05-25 2008-04-17 Key exchanging apparatus
EP08740577.5A EP2154667A4 (en) 2007-05-25 2008-04-17 KEY EXCHANGE DEVICE AND KEY EXCHANGE METHOD
JP2009516218A JPWO2008146547A1 (ja) 2007-05-25 2008-04-17 鍵交換装置及び鍵交換方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-138940 2007-05-25
JP2007138940 2007-05-25

Publications (1)

Publication Number Publication Date
WO2008146547A1 true WO2008146547A1 (ja) 2008-12-04

Family

ID=40074818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/057507 Ceased WO2008146547A1 (ja) 2007-05-25 2008-04-17 鍵交換装置及び鍵交換方法

Country Status (4)

Country Link
US (1) US8638928B2 (ja)
EP (1) EP2154667A4 (ja)
JP (1) JPWO2008146547A1 (ja)
WO (1) WO2008146547A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101099814B1 (ko) * 2007-07-11 2011-12-27 도시바 솔루션 가부시끼가이샤 그룹 서명 시스템, 장치 및 기록 매체
WO2018216749A1 (ja) * 2017-05-25 2018-11-29 Ｎｅｃネットワーク・センサ株式会社 暗号通信方法、情報処理装置及びプログラム
KR102568418B1 (ko) * 2021-08-26 2023-08-18 하이파이브랩 주식회사 다중 서명을 지원하는 전자 인증 시스템 및 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004280401A (ja) * 2003-03-14 2004-10-07 Toshiba Corp コンテンツ配信システム、装置及びプログラム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08204700A (ja) 1995-01-26 1996-08-09 Nippon Telegr & Teleph Corp <Ntt> 暗号通信装置及び暗号通信方法
JP4450969B2 (ja) 2000-05-02 2010-04-14 村田機械株式会社 鍵共有システム，秘密鍵生成装置，共通鍵生成システム，暗号通信方法，暗号通信システム及び記録媒体
GB0215590D0 (en) * 2002-07-05 2002-08-14 Hewlett Packard Co Method and apparatus for generating a cryptographic key
AU2003262908A1 (en) * 2002-08-28 2004-03-19 Docomo Communications Laboratories Usa, Inc. Certificate-based encryption and public key infrastructure
US7639799B2 (en) 2004-12-14 2009-12-29 Microsoft Corporation Cryptographically processing data based on a Cassels-Tate pairing
JP4679163B2 (ja) 2005-01-21 2011-04-27 株式会社東芝 デジタル署名情報生成装置、デジタル署名情報生成方法及びプログラム
EP1793525B1 (de) * 2005-12-01 2008-10-15 BRAVIS GmbH Verfahren zum Ändern eines Gruppenschlüssels in einer Gruppe von Netzelementen in einem Netz

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004280401A (ja) * 2003-03-14 2004-10-07 Toshiba Corp コンテンツ配信システム、装置及びプログラム

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BURMESTER M. ET AL.: "A Secure and Efficient Conference key Distribution System", ADVANCES IN CRYPTOLOGY-EUROCRYPT '94 LECTURE NOTES IN COMPUTER SCIENCE SPRINGER-VERLAG, vol. 1440, 1999, pages 275 - 286, XP008121143 *
JONATHAN KATZ; JI SUN SHIN: "Modeling insider attacks on group key-exchange protocols", ACM CONFERENCE ON COMPUTER AND COMMUNICATIONS SECURITY, 2005, pages 180 - 189, XP058245598, DOI: doi:10.1145/1102120.1102146
OKAMOTO T. ET AL.: "Ango Zero Chishiki Shomei Suron", KYORITSU SHUPPAN CO., LTD., 1 June 1995 (1995-06-01), pages 45 - 46, XP008121145 *
See also references of EP2154667A4

Also Published As

Publication number Publication date
JPWO2008146547A1 (ja) 2010-08-19
US20100180119A1 (en) 2010-07-15
US8638928B2 (en) 2014-01-28
EP2154667A1 (en) 2010-02-17
EP2154667A4 (en) 2015-11-11

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