Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2003-11-14
2010-11-23
Korzuch, William R (Department: 2431)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S156000, C713S180000, C726S009000, C726S010000, C705S037000, C705S074000
Reexamination Certificate
active
07840813
ABSTRACT:
The present invention relates to a method of access to a service consisting in i) identifying and registering a client (C), ii) authenticating the client to an anonymous certification authority, iii) authenticating the client by producing an anonymous signature and opening and maintaining an anonymous authentication session with a server (Se), and iv) selectively allowing contact between the server (Se) and the anonymous certification authority (ACA) to revoke the anonymity of the client (C) using the signature provided in step iii). The invention also relates to a system for opening and maintaining an authentication session guaranteeing non-repudiation.
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Canard Sébastien
Guilloteau Stéphane
Malville Eric
Traore Jacques
Cohen Pontani Lieberman & Pavane LLP
France Telecom
Korzuch William R
Vaughan Michael R
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