[net.crypt] crypt 3 uniqueness

don@allegra.UUCP (D. Mitchell) (12/30/84)

Mr. Spencer is wrong.  No one knows if all 2**56 possible keys produce
a unique mapping in DES, and with the "salted" E box, even that would
not be sufficient.  All one can say is that it is extremely unlikely
that two keys produce the same encryption.