Siemens Aktiengesellschaft

Ulrich Mitreuter

Renate Zygan-Maus

Stefan Unger

The invention relates to a method for improving the security of an Internet supplementary service. When access to the IP server network of a network operator is sought for an ISS message from the Internet, a service-independent authorization procedure is carried out by a purpose-built server, a service-independent identification being used to obtain said authorization. A service-related authorization procedure is subsequently carried out by a service access server, by means of a user password.

Method for protecting an internet supplementary service

Method for identifying Internet users, comprising: identifying or authenticating an Internet user at the Internet access point in the course of an access check when using the Internet access service of an Internet Service Provider with whom the Internet user maintains a business relation; and after the Internet user successfully passed the access check adding Internet user identification information to an Internet user's IP message by the Internet access point prior to forwarding said IP message, guaranteeing the integrity of this information with cryptographic means.

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Königsdorf, Germany

Ulrich Mitreuter