Key allocation in public communications systems taking...

Details Key allocation in public communications systems taking... Key allocation in public communications systems taking...

H - Electricity

04

K

H04K 1/00 (2006.01) H04L 9/08 (2006.01) H04L 9/32 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2062751

A public communication system for a plurality of communication services (ISDN) has an arrangement for the authentification of the subscriber stations (TLN A, TLN B) for the key transmission. For a first security level this authentification arrangement has an arrangement for monitoring the time frame (ZU) of the key transmission and/or an arrangement (A) for the indication of the agreed key in reduced form at the subscriber end, and for a second security level a key management station (SMZ) for authenticated traffic handling.

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