Inventors:
Jari Juopperi - Kirkkonummi, FI
Kari Kurronen - Irving TX, US
Assignee:
Nokia Corporation - Espoo
International Classification:
H04L 9/00
H04L 9/12
US Classification:
380247, 380249, 713168, 713169, 713170, 713171, 726 17, 726 18, 726 19, 726 21
Abstract:
A method to authenticate a mobile station B in a mobile network, so that the mobile station B is authenticated and an encryption key is agreed between mobile stations A and B using user data exchange during call setup. More specifically the mobile station B is authenticated by the mobile station A constructing and sending to the mobile station B a message M, the mobile station B receiving the message M, constructing and sending a message Mto the mobile station A, the mobile station A receiving the message M, checking the validity of the information in the message M, if the information is verified valid the mobile station A accepting to share a shared encryption key K with mobile station B, the mobile station A constructing and sending the message Mto the mobile station B, the mobile station B receiving the message Mand verifying the validity of the information, if the information is valid the mobile station B accepting the sharing of the shared encryption key K with the mobile station A.