Break the Code: Cryptography for Beginners

Bud Johnson

40 évaluations par Goodreads

Langue : anglais

Edité par Dover Publications Inc., 2000

0486291464 / 9780486291468

Vendeur : World of Books Inc, Montgomery, IL, Etats-UnisWorld of Books Inc

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A propos de cet article

No, it's not a message from outer space! Just read it backwards, starting from the bottom line, to discover what this specially coded message says. (The extra letter "X" at the beginning was thrown in just to make the message a bit more mysterious.) Codes have been used for centuries. Now, with the help of this entertaining book, you, too, will be able to decipher dozens of secret messages. Veteran cryptographer Bud Johnson not only describes the different techniques used in secret writing but also explains -- clearly and simply -- how to make and break six different kinds of codes: simple letter grouping, reverse trail, shift code, key word code, date shift code, and twisted path code. You'll even learn techniques for creating your own confidential messages! Cartoons by illustrator Larry Daste accompany the 51 practice messages, along with easy-to-follow instructions explaining each type of code and how to use it. There's also a glossary defining common terms used by cryptographers, a sheet of reproducible graph paper for writing out messages, and a page of ready-made alphabets for shift and key word codes. And if all those funny drawings and helpful guidelines aren't enough to help you decode our secret messages, don't worry. Solutions are included at the end of the book.…

N° de réf. du vendeur CIN0486291464G

Titre
Break the Code: Cryptography for Beginners
Auteur
Bud Johnson
Éditeur
Dover Publications Inc.
Année de publication
2000
État de l'article
Good
Reliure
Paperback
Langue
anglais
ISBN à 10 chiffres
0486291464
ISBN à 13 chiffres
9780486291468

World of Books Inc

Montgomery, IL, Etats-Unis

Vendeur avec une évaluation de 4 étoiles

Vendeur AbeBooks depuis 23 mars 2026

Frais d'expédition à l'intérieur de ce pays : Etats-Unis

Article4 à 12 jours ouvrés3 à 6 jours ouvrés
Premier articleEUR 0,00EUR 9,78
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Founded in 2002, World of Books is a leading online destination for buying and selling both preloved and new books, committed to making sustainable reading accessible to all. With a mission to help people read more and waste less, World of Books offers a huge range of affordable, high-quality books — giving both new and preloved titles a second life. The company also operates World of Books – Sell Your Books, an easy-to-use platform that allows customers to trade in unwanted books for cash, helping to keep books in circulation while promoting sustainability. As a Certified B Corp, World of Books is driven by a vision to become the world’s largest and most sustainable dedicated online bookstore. The company measures its success through the positive environmental impact it creates, the value it provides to customers, and its ability to operate profitably while supporting its sustainable mission …

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