Multiple independent binary bit stream generator

Cryptography – Key management – Having particular key generator

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380 50, H04K 100

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052376150

ABSTRACT:
An apparatus for producing multiple independent binary bit streams from a single underlying key stream. The output from a high speed key generator is fed serially into a multistage shift register. At preselected intervals, the contents of the register are parallel dumped and logically combined with a stored binary word to generate a binary bit which is gated to an output. A plurality of linearly independent binary bit streams result when the register contents are combined with a plurality of linearly independent binary words, one word for each output.

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patent: 4181816 (1980-01-01), Vasseur
patent: 4225935 (1980-09-01), Zscheile et al.

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