Inventor

GIRAULT MARC

FR29 patents

⚠️ This page may combine multiple inventors who share the name “GIRAULT MARC”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GIRAULT MARC

FRANCE TELECOM

Method and device for anonymous signature with a shared private key

Authentication and signature method for messages using reduced size of binary units of information content and corresponding systems

Method for secure biometric authentication/identification, biometric data input module and verification module

Method for performing a double-signature secure electronic transaction

Device and process for rendering secure the transmission of faxes, as well as fax unit which has been made secure and incorporating such a device

Security protected system for interconnection of local networks via a public transmission network

Public key cryptographic method of protecting an electronic chip against fraud

Method of producing a cryptographic unit for an asymmetric cryptography system using a discrete logarithm function

Authenticating or signature method with reduced computations

Method of protecting an electronic chip against fraud

List signature method and application to electronic voting

Method and system for generating a list signature

Public key cryptographic method based on braid groups

Cryptographic method for distributing load among several entities and devices therefor

Cryptographic revocation method using a chip card

Cryptographic method for protection against fraud

Cryptographic method of protecting an electronic chip against fraud

Cryptographic system for group signature

Method for secure delegation of calculation of a bilinear application

Cryptography method and smart cards microcircuit

Cryptographic method and devices for facilitating calculations during transactions

Method and device for performing a cryptographic operation

POSTE

System for the checking of limited access to authorized time slots renewable by means of a portable storage device

Secured access checking system enabling the automatic transfer of entitlement to produce keys

CENTRE NAT ETD TELECOMM

Wired microcircuit card and a method for transactions between a corresponding wired microcircuit card and a terminal

CANARD SEBASTIEN

Method for authenticating an entity by a verifier

ROBSHAW MATTHEW

Efficient and secure cryptographic coupon reloading

PHENTAM DIRE NV LLC

Authenticating or signature method with reduced computations

SIBERT HERVE

Method for fast pre-authentication by distance recognition