"complementary pairs of keys"

Trent Piepho (xyzzy@u.washington.edu)
Sun, 4 May 1997 16:08:32 -0700 (PDT)

This sounds like each key has another which will produce identical results.
So, given that a key K isn't the correct key, it follows that its complement
K' is also not the correct key. Am I totally wrong here, or is this on
track?

So, by avoiding checking the complements of keys already checked the search is
speeded up by a factor of 2.

I have one question then. Given K, how does one find K'?

|Gazing up to the breeze of the heavens \ on a quest, meaning, reason |
|came to be, how it begun \ all alone in the family of the sun |
|curiosity teasing everyone \ on our home, third stone from the sun. |
|Trent Piepho (xyzzy@u.washington.edu) -- Metallica |