Table of Contents
11.1 Simple substitution
are like the Caesar cipher in which each letter is shifted by 3. On
this interactive page you can view all 26 shift encipherings
and decipherings of any text you choose.
are simple substitutions obtained by picking a key word,
as described on page 270.
(Actually, any simple substitution can be so obtained, as long
as we are not to fussy as to what constitutes a "word".)
On this page you can encipher and decipher any text with any