Translate between binary data and a human-readable
collection of words.
The PGP Word List consists of two phonetic alphabets, each
with one word per possible byte value. A string of bytes
is translated with these alphabets, alternating between
them at each byte.
The PGP words corresponding to the bytes @5B 1D CA 6E@
are "erase breakaway spellbind headwaters", for example.
For further information, see