WO2009020078A1 - Système de gestion d'informations de dispersion - Google Patents

Système de gestion d'informations de dispersion Download PDF

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Publication number
WO2009020078A1
WO2009020078A1 PCT/JP2008/063903 JP2008063903W WO2009020078A1 WO 2009020078 A1 WO2009020078 A1 WO 2009020078A1 JP 2008063903 W JP2008063903 W JP 2008063903W WO 2009020078 A1 WO2009020078 A1 WO 2009020078A1
Authority
WO
WIPO (PCT)
Prior art keywords
dispersion information
dispersion
information management
srm
information
Prior art date
Application number
PCT/JP2008/063903
Other languages
English (en)
Japanese (ja)
Inventor
Kazuyuki Yoshida
Kazukuni Kobara
Original Assignee
Pioneer Corporation
National Institute Of Advanced Industrial Science And Technology
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 Pioneer Corporation, National Institute Of Advanced Industrial Science And Technology filed Critical Pioneer Corporation
Priority to JP2009526437A priority Critical patent/JP5057276B2/ja
Publication of WO2009020078A1 publication Critical patent/WO2009020078A1/fr

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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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • 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

Abstract

La présente invention concerne des dispositifs de gestion d'informations de dispersion (121-12n) qui gèrent des informations de dispersion primaires (Sm(1)-Sm(n)) générées par le codage de dispersion d'informations confidentielles (St). Le dispositif de gestion d'informations de dispersion (12m) génère des informations de redispersion (SRm(m,1)-SRm(m,n)) par le codage de dispersion des informations de dispersion primaires (Sm(m)) et fournit les informations de redispersion (SRm(m,1)-SRm(m,n)) à tous les autres dispositifs de gestion d'informations de dispersion (121-12n). Le dispositif de gestion d'informations de dispersion (12m) génère de nouvelles informations de dispersion primaires (Sn(m)) selon les informations de redispersion (SRm(m,1)-SRm(m,n)) fournies de tous les autres dispositifs de gestion d'informations de dispersion (121-12n). Les informations de dispersion primaires (Sm(m)) sont remplacées par les nouvelles informations de dispersion primaires (Sn(m)).
PCT/JP2008/063903 2007-08-03 2008-08-01 Système de gestion d'informations de dispersion WO2009020078A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009526437A JP5057276B2 (ja) 2007-08-03 2008-08-01 分散情報管理システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-203063 2007-08-03
JP2007203063 2007-08-03

Publications (1)

Publication Number Publication Date
WO2009020078A1 true WO2009020078A1 (fr) 2009-02-12

Family

ID=40341312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063903 WO2009020078A1 (fr) 2007-08-03 2008-08-01 Système de gestion d'informations de dispersion

Country Status (2)

Country Link
JP (1) JP5057276B2 (fr)
WO (1) WO2009020078A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011198325A (ja) * 2010-03-24 2011-10-06 Hitachi Solutions Ltd ファイルデータの安全な外部持出し方法及びシステム
JP2013243441A (ja) * 2012-05-18 2013-12-05 Nippon Telegr & Teleph Corp <Ntt> 秘密分散システム、データ分散装置、データ復元装置、秘密分散方法、およびプログラム
JP2021520085A (ja) * 2018-03-15 2021-08-12 ティーゼロ・アイピー，エルエルシー 暗号化された鍵と、鍵を暗号化するために使用される暗号鍵とを、鍵コンポーネントに分割し、鍵コンポーネントのサブセットを備えたアセンブリが、暗号化された鍵を解読できるようにすること

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005234069A (ja) * 2004-02-18 2005-09-02 Nippon Telegr & Teleph Corp <Ntt> 相互検証を可能とする秘密情報分配装置、秘密情報検証装置、秘密情報照合装置、秘密情報分配システム及びプログラム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005234069A (ja) * 2004-02-18 2005-09-02 Nippon Telegr & Teleph Corp <Ntt> 相互検証を可能とする秘密情報分配装置、秘密情報検証装置、秘密情報照合装置、秘密情報分配システム及びプログラム

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
AMIR HERZBERG ET AL.: "Proactive Secret Sharing Or: How to Cope With Perpetual Leakage", LECTURE NOTES IN COMPUTER SCIENCE, vol. 963, 16 October 1995 (1995-10-16), pages 339 - 352, XP019194186 *
DOUGLAS R. STINSON ET AL.: "Unconditionally Secure Proactive Secret Sharing Scheme with Combinatiorial Structures", LECTURE NOTES IN COMPUTER SCIENCE, vol. 1758, 19 April 2000 (2000-04-19), pages 200 - 214, XP055353640 *
HUNG-YU CHIEN ET AL.: "A UNIFIED APPROACH TO SECRET SHARING SCHEMES WITH LOW DISTRIBUTION COST", JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS, vol. 25, no. 6, November 2002 (2002-11-01), pages 723 - 733, XP008020010 *
KAZUYUKI YOSHIDA ET AL.: "Hi Doki no Share Koshin to Kensho ga Kano na Himitsu Bunsanho", 2008 NEN SYMPOSIUM ON CRYPTOGRAPHY AND INFORMATION SECURITY, 22 January 2008 (2008-01-22) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011198325A (ja) * 2010-03-24 2011-10-06 Hitachi Solutions Ltd ファイルデータの安全な外部持出し方法及びシステム
JP2013243441A (ja) * 2012-05-18 2013-12-05 Nippon Telegr & Teleph Corp <Ntt> 秘密分散システム、データ分散装置、データ復元装置、秘密分散方法、およびプログラム
JP2021520085A (ja) * 2018-03-15 2021-08-12 ティーゼロ・アイピー，エルエルシー 暗号化された鍵と、鍵を暗号化するために使用される暗号鍵とを、鍵コンポーネントに分割し、鍵コンポーネントのサブセットを備えたアセンブリが、暗号化された鍵を解読できるようにすること

Also Published As

Publication number Publication date
JPWO2009020078A1 (ja) 2010-11-04
JP5057276B2 (ja) 2012-10-24

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