Patent ID: 6205553
Filing Date: 2001-03-20
Classification: G06Q,G07F

Abstract:
A method for controlling independent secure transactions between a user and one of a plurality of different service providers comprising the steps of:the user acquiring a physical device independently of any service provider by the user, said physical device comprises a public key (Kup) and a secret key (Kus) and remains unchanged following the step of acquiring;the user presenting of the physical device and associated identifier to said one service provider;the service provider supplying the user with a certified digital profile by the service supplier which comprises access rights to a given service of said one service provider, the identifier which identifies the user to the service provider, and the public key of the physical device; andinitiating a secure transaction with said one service provider, by the user providing the certified digital profile to said one service provider and by the user providing authentication by encrypting a random number sent by said one service provider using the secret key of the physical device.