Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2005-12-27
2005-12-27
Barrón, Jr., Gilberto (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S183000, C713S152000, C709S225000, C709S229000
Reexamination Certificate
active
06981145
ABSTRACT:
The present invention relates to a process for remote authentication of a user (7) for local access to a local machine (4) of a network (5) having a server (3) managed by an administrator (8). The local machine (4) creates a challenge (D) which is communicated to the administrator (8), together with elements known by the user via communication means (9) independent from the network (5). A predetermined calculation is performed by means of the server (3) in order to obtain a first response (RD) to the challenge (D). The response (RD) is first transmitted to the user (7) obtained through the communication means (9). A calculation is performed by means of the local machine (4) in the same way as the server (3) in order to obtain a second response (RD1) to the challenge (D). The first and second responses (RD) and (RD1) and the local connection are authorized based on the result.
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Calvez Pierre
Courtaux Brigitte
Picinbono Florent
Rondeau Thierry
Vallot Max
Barrón Jr. Gilberto
Bull S.A.
Kondracki Edward J.
Miles & Stockbridge P.C.
Simitoski Michael J.
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