Codes, Ciphers and Secret Writing PDF Download
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Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486247618
Category : Juvenile Nonfiction
Languages : en
Pages : 100
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Book Description
Explains various methods used in cryptography and presents examples to help readers in breaking secret codes
Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486247618
Category : Juvenile Nonfiction
Languages : en
Pages : 100
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Book Description
Explains various methods used in cryptography and presents examples to help readers in breaking secret codes
Author: Pierre Berloquin
Publisher: Sterling Publishing Company Incorporated
ISBN: 9781454910657
Category : Games & Activities
Languages : en
Pages : 135
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Book Description
Challenges the reader to reveal quotations from prominent people in history and fiction by using a collection of coded alphabets devised by actual historical figures, including Hildegard of Bingen, Edgar Allen Poe, and Hâeláene Smith.
Author: Bud Johnson
Publisher: Courier Corporation
ISBN: 0486291464
Category : Juvenile Nonfiction
Languages : en
Pages : 86
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Book Description
Simply and clearly written book, filled with cartoons and easy-to-follow instructions, tells youngsters 8 and up how to break 6 different types of coded messages. Examples and solutions.
Author: Hunt A Killer
Publisher: Simon and Schuster
ISBN: 1646044002
Category : Games & Activities
Languages : en
Pages : 120
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Book Description
Put your crime-solving wits to the test with codes, ciphers, and mind-bending puzzles from the creators of the popular murder mystery subscription box. In Hunt A Killer: The Detective’s Puzzle Book, you’ll meet up with private eye Michelle Gray who needs you to hit the books and fine-tune your investigative skills before the next big murder case. Under her expert guidance, you’ll start with “Investigative Best Practices” before diving into a world of curious ciphers, devious riddles, and other intriguing logic puzzles all designed to take you from amateur sleuth to a top-notch lead detective. With non-narrative puzzles, you can pick up this training manual anytime you need to sharpen your skills, between episodes, or whenever you need a fun challenge. Whether you’re a Hunt A Killer member, armchair detective, or logic puzzle junkie, these deceptively difficult but always fun puzzles will have you breaking codes and cracking Hunt A Killer cases in no time. So pick up a pen, grab your magnifying glass, and get sleuthing.
Author: Fred B. Wrixon
Publisher: Random House Value Publishing
ISBN:
Category : Business & Economics
Languages : en
Pages : 280
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Book Description
Perfect for word lovers and puzzlers, this comprehensive, illustrated volume includes Indian sign language, Morse code, Jefferson's cipher wheel and more, presented in an informative and historical manner.
Author: Alexander D'Agapeyeff
Publisher: Read Books Ltd
ISBN: 1473350913
Category : Computers
Languages : en
Pages : 153
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Book Description
This vintage book contains Alexander D’Agapeyeff’s famous 1939 work, Codes and Ciphers - A History of Cryptography. Cryptography is the employment of codes and ciphers to protect secrets, and it has a long and interesting history. This fantastic volume offers a detailed history of cryptography from ancient times to modernity, written by the Russian-born English cryptographer, Alexander D'Agapeyeff. The contents include: - The beginnings of Cryptography - From the Middle Ages Onwards - Signals, Signs, and Secret Languages - Commercial Codes - Military Codes and Ciphers - Types of Codes and Ciphers - Methods of Deciphering Many antiquarian texts such as this, especially those dating back to the 1900s and before, are increasingly hard to come by and expensive, and it is with this in mind that we are republishing this book now in an affordable, modern, high quality edition. It comes complete with a specially commissioned new biography of the author.
Author: Norvin Pallas
Publisher: Courier Dover Publications
ISBN: 0486843769
Category : Games & Activities
Languages : en
Pages : 115
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Book Description
Code-breakers ages 8 and up will discover the language and number systems that form the basis of coding as they enjoy solving cryptic treasure hunts, deciphering secret messages, and more.
Author: Paul B. Janeczko
Publisher: Candlewick Press
ISBN: 9780763629724
Category : Juvenile Nonfiction
Languages : en
Pages : 148
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Book Description
Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.
Author: John Redden
Publisher: Lulu.com
ISBN: 1387346083
Category : Education
Languages : en
Pages : 58
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Book Description
The Secret Code Book is a short introduction to substitution ciphers. The chapters ease young readers into the concept of rotation ciphers and work their way up to the Vigenère cipher. Along the way, readers will also learn about geometric approaches to secret codes such as the Pigpen cipher. As a bonus, there is a brief description of frequency analysis and how it is used to crack secret codes. frper gpbqr obbx In addition, this book actively challenges readers with practice missions where answers are listed in the back. Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.
Author: Al Sweigart
Publisher: No Starch Press
ISBN: 1593278225
Category : Computers
Languages : en
Pages : 419
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Book Description
Learn how to program in Python while making and breaking ciphers—algorithms used to create and send secret messages! After a crash course in Python programming basics, you’ll learn to make, test, and hack programs that encrypt text with classical ciphers like the transposition cipher and Vigenère cipher. You’ll begin with simple programs for the reverse and Caesar ciphers and then work your way up to public key cryptography, the type of encryption used to secure today’s online transactions, including digital signatures, email, and Bitcoin. Each program includes the full code and a line-by-line explanation of how things work. By the end of the book, you’ll have learned how to code in Python and you’ll have the clever programs to prove it! You’ll also learn how to: - Combine loops, variables, and flow control statements into real working programs - Use dictionary files to instantly detect whether decrypted messages are valid English or gibberish - Create test programs to make sure that your code encrypts and decrypts correctly - Code (and hack!) a working example of the affine cipher, which uses modular arithmetic to encrypt a message - Break ciphers with techniques such as brute-force and frequency analysis There’s no better way to learn to code than to play with real programs. Cracking Codes with Python makes the learning fun!
