ATE420502T1 - Kryptographisches verfahren und einrichtungen zur ermöglichung von berechnungen während transaktionen - Google Patents

Kryptographisches verfahren und einrichtungen zur ermöglichung von berechnungen während transaktionen

Info

Publication number
ATE420502T1
ATE420502T1 AT03750783T AT03750783T ATE420502T1 AT E420502 T1 ATE420502 T1 AT E420502T1 AT 03750783 T AT03750783 T AT 03750783T AT 03750783 T AT03750783 T AT 03750783T AT E420502 T1 ATE420502 T1 AT E420502T1
Authority
AT
Austria
Prior art keywords
proof
cryptographic method
entity
devices
exponent
Prior art date
Application number
AT03750783T
Other languages
English (en)
Inventor
Marc Girault
Jean-Claude Pailles
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE420502T1 publication Critical patent/ATE420502T1/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
    • 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
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/302—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the integer factorization problem, e.g. RSA or quadratic sieve [QS] schemes
    • 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
    • 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
    • H04L9/3218—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 using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
    • 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
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Multi Processors (AREA)
AT03750783T 2002-07-05 2003-06-27 Kryptographisches verfahren und einrichtungen zur ermöglichung von berechnungen während transaktionen ATE420502T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0208474A FR2842052B1 (fr) 2002-07-05 2002-07-05 Procede et dispositifs cryptographiques permettant d'alleger les calculs au cours de transactions

Publications (1)

Publication Number Publication Date
ATE420502T1 true ATE420502T1 (de) 2009-01-15

Family

ID=29725211

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03750783T ATE420502T1 (de) 2002-07-05 2003-06-27 Kryptographisches verfahren und einrichtungen zur ermöglichung von berechnungen während transaktionen

Country Status (13)

Country Link
US (1) US7760884B2 (de)
EP (1) EP1520370B1 (de)
JP (1) JP4494965B2 (de)
KR (1) KR100984562B1 (de)
CN (1) CN1666458B (de)
AT (1) ATE420502T1 (de)
AU (1) AU2003269005B2 (de)
DE (1) DE60325732D1 (de)
ES (1) ES2320752T3 (de)
FR (1) FR2842052B1 (de)
MX (1) MXPA04012758A (de)
WO (1) WO2004006497A1 (de)
ZA (1) ZA200409854B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2007010388A (es) * 2005-02-25 2007-10-18 Qualcomm Inc Firmas digitales basadas en clave publica pequena para autenticacion.
US7853018B2 (en) 2005-11-10 2010-12-14 Atallah Mikhail J Method and apparatus for hiding a private key
US20080013721A1 (en) * 2005-11-30 2008-01-17 Jing-Jang Hwang Asymmetric cryptography with discretionary private key
DE102014101936A1 (de) * 2014-02-17 2015-08-20 Infineon Technologies Ag Verfahren zum Permutieren von Datenelementen und Permutiervorrichtung
EP3334083A1 (de) * 2016-12-08 2018-06-13 Gemalto SA Verfahren fuer mit homomorpher verschluesselung geschuetzter rsa-signatur oder entschluesselung
US10355859B2 (en) * 2017-03-27 2019-07-16 Certicom Corp. Method and system for selecting a secure prime for finite field diffie-hellman
GB201905198D0 (en) * 2019-04-12 2019-05-29 Nchain Holdings Ltd Computer implemented method and system for knowledge proof in blockchain transactions

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383985A1 (de) * 1989-02-24 1990-08-29 Claus Peter Prof. Dr. Schnorr Verfahren zur Identifikation von Teilnehmern sowie zur Generierung und Verifikation von elektronischen Unterschriften in einem Datenaustauschsystem
FR2716058B1 (fr) 1994-02-04 1996-04-12 France Telecom Procédé de signature numérique et d'authentification de messages utilisant un logarithme discret.
FR2718311A1 (fr) * 1994-03-30 1995-10-06 Trt Telecom Radio Electr Dispositif de mise en Óoeuvre d'un système de signature de message et carte à puce comportant un tel dispositif.
FR2752122B1 (fr) 1994-07-28 1998-11-27 France Telecom Procede d'authentification a nombre reduit de bits transmis
FR2739469B1 (fr) * 1995-10-03 1997-12-26 Gemplus Card Int Procede de cryptographie a cle publique base sur le logarithme discret
FR2747257B1 (fr) * 1996-04-09 1998-09-11 Gilbert Henri Procede d'identification et/ou de signature
FR2763451B1 (fr) * 1997-05-13 1999-06-18 France Telecom Procede d'identification a cle publique utilisant deux fonctions de hachage
JP3613936B2 (ja) * 1997-07-07 2005-01-26 富士ゼロックス株式会社 アクセス資格認証装置
US6307936B1 (en) * 1997-09-16 2001-10-23 Safenet, Inc. Cryptographic key management scheme
US6411715B1 (en) * 1997-11-10 2002-06-25 Rsa Security, Inc. Methods and apparatus for verifying the cryptographic security of a selected private and public key pair without knowing the private key
ATE325478T1 (de) * 1998-01-02 2006-06-15 Cryptography Res Inc Leckresistentes kryptographisches verfahren und vorrichtung
US6788788B1 (en) * 1998-09-16 2004-09-07 Murata Kikai Kabushiki Kaisha Cryptographic communication method, encryption method, and cryptographic communication system
US6578144B1 (en) * 1999-03-23 2003-06-10 International Business Machines Corporation Secure hash-and-sign signatures
FR2792142B1 (fr) 1999-04-08 2001-06-01 France Telecom Procede d'authentification et de signature de message utilisant des engagements de taille reduite
US7080254B1 (en) * 1999-10-01 2006-07-18 France Telecom Method, system, device for proving authenticity of an entity or integrity of a message
JP2001117823A (ja) * 1999-10-15 2001-04-27 Fuji Xerox Co Ltd アクセス資格認証機能付きデータ記憶装置
FR2809894B1 (fr) 2000-05-31 2002-10-25 France Telecom Procede de cryptographie, microcircuit pour carte a puce et cartes a puce incluant un tel microcircuit
US20020041683A1 (en) * 2000-09-29 2002-04-11 Hopkins Dale W. Method for selecting optimal number of prime factors of a modulus for use in a cryptographic system
US20030059041A1 (en) * 2001-06-26 2003-03-27 Mackenzie Philip D. Methods and apparatus for two-party generation of DSA signatures
US7165181B2 (en) * 2002-11-27 2007-01-16 Intel Corporation System and method for establishing trust without revealing identity
JP2004226674A (ja) * 2003-01-23 2004-08-12 Renesas Technology Corp 情報処理方法

Also Published As

Publication number Publication date
EP1520370A1 (de) 2005-04-06
CN1666458A (zh) 2005-09-07
FR2842052B1 (fr) 2004-09-24
MXPA04012758A (es) 2005-08-15
ZA200409854B (en) 2006-10-25
AU2003269005B2 (en) 2008-01-10
KR100984562B1 (ko) 2010-10-01
EP1520370B1 (de) 2009-01-07
US7760884B2 (en) 2010-07-20
JP4494965B2 (ja) 2010-06-30
WO2004006497A1 (fr) 2004-01-15
FR2842052A1 (fr) 2004-01-09
CN1666458B (zh) 2011-08-24
KR20050016988A (ko) 2005-02-21
ES2320752T3 (es) 2009-05-28
JP2005532723A (ja) 2005-10-27
AU2003269005A1 (en) 2004-01-23
DE60325732D1 (de) 2009-02-26
US20050213769A1 (en) 2005-09-29

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