EP1676396A4 - Procede de traitement cryptographique d'un message, procede de creation d'un message traite de maniere cryptographique, procede d'execution d'une operation cryptographique sur un message, systeme informatique, ordinateur client, ordinateur serveur et elements de programme informatique - Google Patents

Procede de traitement cryptographique d'un message, procede de creation d'un message traite de maniere cryptographique, procede d'execution d'une operation cryptographique sur un message, systeme informatique, ordinateur client, ordinateur serveur et elements de programme informatique

Info

Publication number
EP1676396A4
EP1676396A4 EP04775641A EP04775641A EP1676396A4 EP 1676396 A4 EP1676396 A4 EP 1676396A4 EP 04775641 A EP04775641 A EP 04775641A EP 04775641 A EP04775641 A EP 04775641A EP 1676396 A4 EP1676396 A4 EP 1676396A4
Authority
EP
European Patent Office
Prior art keywords
message
computer
cryptographically
generatiing
cryptographic operation
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.)
Withdrawn
Application number
EP04775641A
Other languages
German (de)
English (en)
Other versions
EP1676396A1 (fr
Inventor
Lakshminarayanan Anatharaman
Feng Bao
Huijie Robert Deng
Tieyan Li
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.)
Agency for Science Technology and Research Singapore
Original Assignee
Agency for Science Technology and Research Singapore
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 Agency for Science Technology and Research Singapore filed Critical Agency for Science Technology and Research Singapore
Publication of EP1676396A1 publication Critical patent/EP1676396A1/fr
Publication of EP1676396A4 publication Critical patent/EP1676396A4/fr
Withdrawn legal-status Critical Current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
    • H04L9/32—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
    • H04L9/3249—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 using RSA or related signature schemes, e.g. Rabin scheme
    • 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
    • H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)
EP04775641A 2003-10-03 2004-10-01 Procede de traitement cryptographique d'un message, procede de creation d'un message traite de maniere cryptographique, procede d'execution d'une operation cryptographique sur un message, systeme informatique, ordinateur client, ordinateur serveur et elements de programme informatique Withdrawn EP1676396A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50872003P 2003-10-03 2003-10-03
PCT/SG2004/000320 WO2005034423A1 (fr) 2003-10-03 2004-10-01 Procede de traitement cryptographique d'un message, procede de creation d'un message traite de maniere cryptographique, procede d'execution d'une operation cryptographique sur un message, systeme informatique, ordinateur client, ordinateur serveur et elements de programme informatique

Publications (2)

Publication Number Publication Date
EP1676396A1 EP1676396A1 (fr) 2006-07-05
EP1676396A4 true EP1676396A4 (fr) 2010-03-10

Family

ID=34421780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04775641A Withdrawn EP1676396A4 (fr) 2003-10-03 2004-10-01 Procede de traitement cryptographique d'un message, procede de creation d'un message traite de maniere cryptographique, procede d'execution d'une operation cryptographique sur un message, systeme informatique, ordinateur client, ordinateur serveur et elements de programme informatique

Country Status (2)

Country Link
EP (1) EP1676396A4 (fr)
WO (1) WO2005034423A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7986780B2 (en) * 2006-07-06 2011-07-26 Sap Ag Privacy-preserving substring creation
US7995750B2 (en) 2006-07-06 2011-08-09 Sap Ag Privacy-preserving concatenation of strings
US9448976B2 (en) 2008-05-20 2016-09-20 Adobe Systems Incorporated Package file presentation including reference content
US8818959B2 (en) 2008-12-02 2014-08-26 Adobe Systems Incorporated Virtual embedding of files in documents
ITTV20110019A1 (it) * 2011-02-08 2012-08-09 Ct Vue S P A Sistema computerizzato per la gestione di dati sensibili generati da un dispositivo medicale e metodo relativo

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0723348A2 (fr) * 1995-01-23 1996-07-24 International Business Machines Corporation Procédé et système cryptographique productif et robuste à clé publique et à partage distribué de secret récupérable à seuil
WO1998049804A1 (fr) * 1997-04-28 1998-11-05 Certco Llc Procede et systeme de cryptographie a cle publique proactif, a resilience optimale
WO1999005818A1 (fr) * 1997-07-28 1999-02-04 The Director Government Communications Headquarters Systeme cryptographique a clef fractionnee et procede correspondant
US5991414A (en) * 1997-09-12 1999-11-23 International Business Machines Corporation Method and apparatus for the secure distributed storage and retrieval of information

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5905799A (en) * 1994-07-20 1999-05-18 Bell Atlantic Network Services, Inc. Programmed computer for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem
WO2000049768A1 (fr) * 1999-02-17 2000-08-24 Thomas Mittelholzer Partage de signature pour protection de cles privees
US6970562B2 (en) * 2000-12-19 2005-11-29 Tricipher, Inc. System and method for crypto-key generation and use in cryptosystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0723348A2 (fr) * 1995-01-23 1996-07-24 International Business Machines Corporation Procédé et système cryptographique productif et robuste à clé publique et à partage distribué de secret récupérable à seuil
WO1998049804A1 (fr) * 1997-04-28 1998-11-05 Certco Llc Procede et systeme de cryptographie a cle publique proactif, a resilience optimale
WO1999005818A1 (fr) * 1997-07-28 1999-02-04 The Director Government Communications Headquarters Systeme cryptographique a clef fractionnee et procede correspondant
US5991414A (en) * 1997-09-12 1999-11-23 International Business Machines Corporation Method and apparatus for the secure distributed storage and retrieval of information

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
LIDONG ZHOU ET AL: "COCA: a secure distributed online certification authority", FOUNDATIONS OF INTRUSION TOLERANT SYSTEMS, 2003 [ORGANICALLY ASSURED A ND SURVIVABLE INFORMATION SYSTEMS] 2003, PISCATAWAY, NJ, USA,IEEE, 1 January 2003 (2003-01-01), pages 152 - 191, XP010681820, ISBN: 978-0-7695-2057-5 *
RABIN T: "A SIMPLIFIED APPROACH TO THRESHOLD AND PROACTIVE RSA", ADVANCES IN CRYPTOLOGY. CRYPTO '98. 18TH ANNUAL INTERNATIONAL CRYPTOLOGY CONFERENCE. SANTA BARBARA, AUG. 23 - 27, 1998. PROCEEDINGS; [LECTURE NOTES IN COMPUTER SCIENCE ; VOL. 1462], BERLIN : SPRINGER, DE, 23 August 1998 (1998-08-23), pages 89 - 104, XP000792171, ISBN: 978-3-540-64892-5 *
See also references of WO2005034423A1 *

Also Published As

Publication number Publication date
WO2005034423A1 (fr) 2005-04-14
EP1676396A1 (fr) 2006-07-05

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