摘要 |
A method for authenticating a first party with a second party, the first and second parties having means for communicating with each other, the first party having secret information and supporting a plurality of authentication modes for authenticating the first party with another party, using said secret information, the authentication modes of said plurality being arranged for protecting the first party's privacy with respective degrees. A degree with which the first party's privacy must be protected when authenticating the first party with the second party is negotiated between the first party and the second party. If the negotiation is successful, the first party is authenticated with the second party according to the authentication mode of said plurality having the negotiated degree of protection of the first party's privacy.
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