IBM's original S-Boxes for DES?

[Nicolai Moles-Benfell]

Hi,

A number of sources state that the NSA changed the S-Boxes (and reduced the key
size) of IBM's original DES submission, and that these change were made to
strengthen the cipher against differential/linear/?? cryptanalysis.

Does anybody have a reference to, or have an electronic copy of these original
S-Boxes?

Nicolai.

[Moderator's note: Google for information on the original cipher,
called "Lucifer". --Perry]
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