FR3111037B1 - Procédé de dérivation d’une signature partielle avec vérification partielle - Google Patents

Procédé de dérivation d’une signature partielle avec vérification partielle Download PDF

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Publication number
FR3111037B1
FR3111037B1 FR2005704A FR2005704A FR3111037B1 FR 3111037 B1 FR3111037 B1 FR 3111037B1 FR 2005704 A FR2005704 A FR 2005704A FR 2005704 A FR2005704 A FR 2005704A FR 3111037 B1 FR3111037 B1 FR 3111037B1
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FR
France
Prior art keywords
messages
signature
partial
verification
subset
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.)
Active
Application number
FR2005704A
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English (en)
Other versions
FR3111037A1 (fr
Inventor
Olivier Sanders
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.)
Orange SA
Original Assignee
Orange SA
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 Orange SA filed Critical Orange SA
Priority to FR2005704A priority Critical patent/FR3111037B1/fr
Priority to US17/928,064 priority patent/US20230198778A1/en
Priority to EP21734891.1A priority patent/EP4158842A1/fr
Priority to PCT/FR2021/050983 priority patent/WO2021240120A1/fr
Publication of FR3111037A1 publication Critical patent/FR3111037A1/fr
Application granted granted Critical
Publication of FR3111037B1 publication Critical patent/FR3111037B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04L9/32—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
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • 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
    • 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
    • H04L9/3236—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 cryptographic hash functions
    • H04L9/3239—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 cryptographic hash functions involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD

Landscapes

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

Abstract

Procédé de dérivation d’une signature partielle avec vérification partielle L’invention concerne un procédé de dérivation d’une signature partielle pour un sous-ensemble d’un ensemble de messages, dit sous-ensemble de messages, ledit procédé, comprenant :- réception (E12-1) de l’ensemble de messages et d’une signature dudit ensemble de messages, ladite signature comprenant des éléments de signature de l’ensemble de messages,- génération (E12-2) des éléments anonymisés de la signature,- génération (E12-3) d’un premier élément de vérification calculé à partir des messages autres que ceux du sous-ensemble de messages, et- génération (E12-4) d’un second élément de vérification destiné à prouver que le premier élément de vérification est bien formé, et - envoi à une entité de vérification d’une signature partielle propre au sous-ensemble de messages, ladite signature partielle comprenant un nombre constant d’éléments comprenant au moins les éléments de la signature de l’ensemble de messages anonymisés, le premier élément de vérification et le second élément de vérification, ladite signature partielle étant destinée à être vérifiée avec les seuls messages du sous-ensemble de messages, caractérisé en ce que le second élément de vérification est fonction de valeurs dérivées calculées à partir d’au moins les autres éléments de la signature partielle. Figure pour l’abrégé : Fig 1
FR2005704A 2020-05-29 2020-05-29 Procédé de dérivation d’une signature partielle avec vérification partielle Active FR3111037B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR2005704A FR3111037B1 (fr) 2020-05-29 2020-05-29 Procédé de dérivation d’une signature partielle avec vérification partielle
US17/928,064 US20230198778A1 (en) 2020-05-29 2021-05-31 Method for deriving a partial signature with partial verification
EP21734891.1A EP4158842A1 (fr) 2020-05-29 2021-05-31 Procede de derivation d'une signature partielle avec verification partielle
PCT/FR2021/050983 WO2021240120A1 (fr) 2020-05-29 2021-05-31 Procede de derivation d'une signature partielle avec verification partielle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2005704A FR3111037B1 (fr) 2020-05-29 2020-05-29 Procédé de dérivation d’une signature partielle avec vérification partielle
FR2005704 2020-05-29

Publications (2)

Publication Number Publication Date
FR3111037A1 FR3111037A1 (fr) 2021-12-03
FR3111037B1 true FR3111037B1 (fr) 2023-05-26

Family

ID=72801578

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2005704A Active FR3111037B1 (fr) 2020-05-29 2020-05-29 Procédé de dérivation d’une signature partielle avec vérification partielle

Country Status (4)

Country Link
US (1) US20230198778A1 (fr)
EP (1) EP4158842A1 (fr)
FR (1) FR3111037B1 (fr)
WO (1) WO2021240120A1 (fr)

Also Published As

Publication number Publication date
WO2021240120A1 (fr) 2021-12-02
EP4158842A1 (fr) 2023-04-05
FR3111037A1 (fr) 2021-12-03
US20230198778A1 (en) 2023-06-22

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