The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Jan. 08, 2001
Henry Haverinen, Tampere, FI;
Jukka-pekka Honkanen, Tampere, FI;
Antti Kuikka, Tampere, FI;
Nadarajah Asokan, Espoo, FI;
Patrik Flykt, Helsinki, FI;
Juha Ala-laurila, Tampere, FI;
Jyri Rinnemaa, Tampere, FI;
Timo Takamäki, Tampere, FI;
Raimo Vuonnala, Espoo, FI;
Jan-erik Ekberg, Helsinki, FI;
Tommi Mikkonen, Tampere, FI;
Petri Aalto, Pirkkala, FI;
Seppo Honkanen, Helsinki, FI;
Henry Haverinen, Tampere, FI;
Jukka-Pekka Honkanen, Tampere, FI;
Antti Kuikka, Tampere, FI;
Nadarajah Asokan, Espoo, FI;
Patrik Flykt, Helsinki, FI;
Juha Ala-Laurila, Tampere, FI;
Jyri Rinnemaa, Tampere, FI;
Timo Takamäki, Tampere, FI;
Raimo Vuonnala, Espoo, FI;
Jan-Erik Ekberg, Helsinki, FI;
Tommi Mikkonen, Tampere, FI;
Petri Aalto, Pirkkala, FI;
Seppo Honkanen, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
Authentication method for authenticating a mobile node to a packet data network, in which a shared secret for both the mobile node and the packet data network is arranged by using a shared secret of the mobile node and a telecommunications network authentication center. In the method, the mobile node sends its subscriber identity to the packet data network together with a replay attack protector. The packet data network obtains authentication triplets, forms a session key using them, and sends back to the mobile node challenges and a cryptographic authenticator made by using the session key. The mobile node can then form the rest of the authentication triplets using the challenges and then form the session key. With the session key, the mobile node can check the validity of the cryptographic authenticator. If the authenticator is correct, the mobile node sends a cryptographic response formed using the session key to the packet data network for authenticating itself to the packet data network.