Cryptography – Key management – Having particular key generator
Patent
1996-04-22
1998-10-13
Gregory, Bernarr E.
Cryptography
Key management
Having particular key generator
380 9, 380 10, 380 33, H04L 900
Patent
active
058224335
ABSTRACT:
The present invention concerns a method for the manipulation-proof separation of message streams, which are transmitted in the subscriber loop (3) of a communication network via a medium (30) that is common to several subscribers, where first measures (22, 43) are taken to separate the message streams for transmission via the common medium, which are identical for all message streams, and for connections between at least one subscriber (4) connected to the communication network via the common medium, and another subscriber, supplementary measures (111, 112, . . . , 11n; 42) are taken from end to end, which were agreed between these subscribers for these connections, as well as a suitable system and a suitable subscriber facility.
REFERENCES:
patent: 2586475 (1952-02-01), Milliquet
patent: 4802220 (1989-01-01), Marker, Jr.
patent: 5155466 (1992-05-01), Presttun
patent: 5210794 (1993-05-01), Brunsgard
patent: 5311593 (1994-05-01), Carmi
"Sichere Kommunikationsnetze und deren Protokolle", M. Leclerc et al, Informationstechnik IT32 (1990) 1, pp. 33-45.
"Security Measures in Communication Networks", K. Presttun, ITT Electrical Communication, vol. 60, No. 1, 1986, pp. 63-70.
Banniza Thomas-Rolf
Bottle Dietrich
ALCATEL N.V.
Gregory Bernarr E.
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