User authentication method for IP transport network, involves calculating authentication data of user close to near service providers, inserting identification and authentication data in request, and transmitting them to access controller

摘要

The method involves transmitting a random number to a user terminal before the transmission of an access request. Authentication data of the user who is close to two service providers (6, 7) of an IP transport network (5) are calculated. The user identification and authentication data are inserted in the request, and transmitted to an access controller. Authentication servers (16) execute a procedure contained in user database. - An INDEPENDENT CLAIM is also included for a system for authentication of a user during an attempt to access a service provider of an IP transport network.