Electronic device providing automatic permutations of a Vigenere

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

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Details

380 44, 380 50, H04L 904

Patent

active

046754776

ABSTRACT:
This invention relates to cryptographic teletypewriter systems and more picularly to an electronic device for use in such systems which automatically provides permutations of a Vigenere Square.

REFERENCES:
patent: 2691153 (1954-10-01), Rajchman et al.
patent: 2789159 (1957-04-01), Dreyse
patent: 2810785 (1957-10-01), Lee
patent: 2917578 (1959-10-01), Curtis et al.
patent: 3061192 (1962-10-01), Terzian

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