Trådlösa närförbindelser i ett telekommunikationsnät

摘要

The present invention relates to a method for authentication of short-distance wireless connection setup and encryption of a connection set up between two or more mobile terminals in a digital mobile communication network. According to the invention, the MSISDN subscriber number of the first terminal is utilized for identification of the first terminal by the second terminal, a short message inquiry is sent from the terminal selected as master to the gateway server, a random number is generated by the gateway server in response to the short message inquiry, the random number generated is sent in a response to the short message inquiry from the gateway server to both terminals, and the short-distance wireless connection set up between the terminals is encrypted by utilizing the aforesaid random number and encryption keys stored on the user identity modules of the terminals.