Bull S.a.

Evidian

Pierre Calvez

Brigitte Courtaux

Jacques Lebastard

Max Vallot

Thierry Rondeau

Florent Picinbono

A process for creating and managing pairs of asymmetrical cryptographic keys and/or certificates associated with the pairs of keys, each pair of keys and associated certificates being intended for an object managed by a computer system. The process includes creating an individual request for creating and/or certifying at least one pair of keys for an object of the system that lacks a pair of keys or a certificate for its pair of keys.

Process for creating and managing at least one cryptographic key, and system for its implementation

The present invention relates to a process for remote authentication of a user () for local access to a local machine () of a network () having a server () managed by an administrator (). The local machine () creates a challenge (D) which is communicated to the administrator (), together with elements known by the user via communication means () independent from the network (). A predetermined calculation is performed by means of the server () in order to obtain a first response (RD) to the challenge (D). The response (RD) is first transmitted to the user () obtained through the communication means (). A calculation is performed by means of the local machine () in the same way as the server () in order to obtain a second response (RD) to the challenge (D). The first and second responses (RD) and (RD) and the local connection are authorized based on the result.

Device and process for remote authentication of a user

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Rueil Malmaison, France

Pierre Calvez