TheCodeBreakers
a 12 per cent chance that the plaintext unknown is e, an 8 per cent
chance that it is t, and so on down the frequency table. But this does not
answer the cryptanalyst's question, for it does not specify which of these
probabilities is actually present in the individual case before him.
So the answers again evade the cryptanalyst. Formless, endless, the
random one-time tape vanquishes him by dissolving in chaos on the one
hand and infinity on the other. Here indeed the cryptanalyst gropes
through caverns measureless to man. His quest is Faustian; who would
dare it would know more than can be known.
Why, then, is this ultimate cipher not in universal use? Because of
the stupendous quantities of keys required. The problems of producing,
registering, distributing, and canceling the keys may seem slight to an
individual who has not had experience with military communications,
but in wartime the volumes of traffic stagger even the signal staffs.
annaabi.ee 
