Method, forwarding device and modules for authentication of a user at a business application over the internet

摘要

The invention relates to a method, a forwarding device (FWS), a forwarding module (FWM) and a business application module (BAM) for authentication of a user (U1, U2) at a business application (BA) over the Internet (INT), wherein a token (TK1, TK2) is transmitted from said business application (BA) to a communication terminal of said user (U1, U2), said communication terminal being connected to a telecommunications network (TN), and wherein said user (U1, U2) sends said token or a token information deduced from said token (TK1, TK2) to said business application (BA) for authentication at said business application (BA). Said business application (BA) sends said token in connection with a user identifier (UI1, UI2) identifying said user (U1, U2) to a forwarding device (FWS) of said telecommunications network (TN). Said forwarding device (FWS) determines a communication address (CA1, CA2) of said communication terminal by means of said user identifier (UI1, UI2) and said forwarding device (FWS) forwards said token to said communication terminal by means of said communication address (CA1, CA2).