Codes and Ciphers: Secret writing through the ages

160 Pages·1964·14.06 MB·English

by  John Laffin

CODES CIPHERS
and
Secret writing through the ages
JOHN LAFFIN
m$m
B
and CIPHERS
Secret Writing Through the Ages
John Laffin
In this simple and comprehensive history of
secret writing, John Laffin tells fascinating stories
about the use of codes and ciphers from ancient
to modern times.
We
read of the code-word that ushered in the
dawn of D-Day, of the fantastic discovery of the
true identity of the "Man in the Iron Mask", of
the cloak-and-dagger techniques employed by
governments to decipher other countries' codes.
There are tales of the ancient world of Greece
and Rome, of the English and American Civil
—
Wars and of the two World Wars tales of men
and nations pitting their wits the one against the
other.
However, this is also a practical book. The
author's lucid explanations and many examples of
codes and ciphers will enable the beginner to
obtain a thorough grasp of this intriguing subject.
By the time he has finished reading he should be
able to break the cipher messages which have
been given him, together with answers, at the
end of the book.
illustrated by C. de la Nougerede
BOSTON
PUBLIC
LIBRARY

CODES and CIPHERS

CODES
and
CIPHERS
Secret Writing Through the Ages
JOHN LAFFIN
by
illustrated by C. de la Nougerede
m
Abelard Schuman
-
London New York
An lnte\t Publisher
Fourth impression, 1973
© Copyright 1964 by John Laffin
Library of Congress Catalog Card Number 64-13723
ISBN: 0-200-71118-0
k
yA
The author expresses his gratitude to
Miss Hazelle Stonham, an accom-
plished professional cryptographer,
for checking and correcting all ex-
amples and cryptograms in the book.
Published on the same day in Canada by Longman Canada Limited.
NEW YORK LONDON
Abelard-Schuman Abelard-Schuman
Limited Limited
257 Park Avenue So. 450 Edgware Road W2 iEG
10010 and
24 Market Square Aylesbury
Printed in the United States of America
BOSTON PUBLIC LIBRARY
TO MY SON, CRAIG