Cryptographic equipment

Details Cryptographic equipment Cryptographic equipment

1990-07-19

1996-04-23

Buczinski, Stephen C.

Cryptography

Key management

Having particular key generator

380 33, H04L 902, H04K 100

Patent

active

055111246

ABSTRACT:
In the transmission of information which require secrecy, such as voice and data, serial bit streams having bit rates of more than 100 Mbit can occur, particularly given digital signal hierarchies according to the CCITT recommendations. In order to be able to utilize integrated circuits constructed in CMOS technology having low power consumption for the realization of cryptographic equipment for bit streams having such a high bit rate, it has already been proposed that a plurality of subcoders or, respectively, subdecoders be utilized upon employing multiplexing techniques. Given the utilization of subcoders and subdecoders having the same crypto-codes, a special synchronization between a demultiplexer and a multiplexer at the transmitting side, on the one hand, and at the receiving side, on the other hand, can be foregone given employment of individual synchronization of the subcoders and, respectively, subdecoders assigned to one another at the transmitting side and at the receiving side.

REFERENCES:
patent: 3886313 (1975-05-01), Branscome et al.
patent: 4401854 (1983-08-01), Steele
patent: 5003599 (1991-03-01), Landry

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