Inventor · Caen, FR

Marc Girault

29Patents
8h-index
23Co-inventors
71Inventor score

Filing activity: Jul 17, 1990 → Jun 16, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US5128997A Wired microcircuit card and a method for transactions between a corresponding wired microcircuit card and a terminal Physics 43 Expired
US7228418B1 Authentication and signature method for messages using reduced size of binary units of information content and corresponding systems Electricity 39 Expired
US5768379A System for the checking of limited access to authorized time slots renewable by means of a portable storage device Physics 35 Expired
US5745701A Security protected system for interconnection of local networks via a public transmission network Electricity 24 Expired
US5555307A 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 Electricity 17 Expired
US6105862A Method for performing a double-signature secure electronic transaction Physics 17 Expired
US7571324B2 Method and device for anonymous signature with a shared private key Electricity 17 Expired
US7590846B2 Public key cryptographic method of protecting an electronic chip against fraud Electricity 8 Expired
US7165177B2 Method of protecting an electronic chip against fraud Electricity 7 Expired
US7194632B2 Method for secure biometric authentication/identification, biometric data input module and verification module Electricity 7 Expired
US7330549B2 Method of producing a cryptographic unit for an asymmetric cryptography system using a discrete logarithm function Electricity 7 Expired
US7184547B1 Authenticating or signature method with reduced computations Electricity 5 Expired
US7657738B2 List signature method and application to electronic voting Electricity 4 Expired
US6380843B1 Secured access checking system enabling the automatic transfer of entitlement to produce keys Physics 3 Expired
US7356842B2 Cryptographic revocation method using a chip card Electricity 3 Expired
US8352380B2 Method and system for generating a list signature Electricity 3 Active
US8522027B2 Method for authenticating an entity by a verifier Electricity 3 Active
US7401226B2 Public key cryptographic method based on braid groups Electricity 3 Expired
US7991151B2 Method for secure delegation of calculation of a bilinear application Electricity 3 Active
US7382875B2 Cryptographic method for distributing load among several entities and devices therefor Electricity 3 Expired
US8543812B2 Efficient and secure cryptographic coupon reloading Electricity 2 Active
US7284122B2 Cryptographic method for protection against fraud Electricity 2 Expired
US7526648B2 Cryptographic method of protecting an electronic chip against fraud Electricity 2 Expired
US7673144B2 Cryptographic system for group signature Electricity 1 Expired
US7822199B2 Method and device for performing a cryptographic operation Electricity 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.