How to Write Codes and Send Secret Messages PDF Download
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Author: John Peterson
Publisher:
ISBN:
Category : Ciphers
Languages : en
Pages : 64
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Book Description
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
Author: John Peterson
Publisher:
ISBN:
Category : Ciphers
Languages : en
Pages : 64
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Book Description
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
Author: John Lawrence Peterson
Publisher:
ISBN:
Category : Ciphers
Languages : en
Pages : 64
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Book Description
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
Author: Gyles Daubeney Brandreth
Publisher: Sterling Publishing (NY)
ISBN: 9780806946900
Category : Language Arts & Disciplines
Languages : en
Pages : 134
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Book Description
Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.
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: William S. Butler
Publisher:
ISBN:
Category : History
Languages : en
Pages : 202
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Book Description
Tells the stories of ninety-five situations in which code and hidden messages have been used throughout history.
Author: Mark Powers
Publisher: Bloomsbury Publishing USA
ISBN: 1681196654
Category : Juvenile Fiction
Languages : en
Pages : 210
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Book Description
The world's leading toy manufacturer gives each toy it creates a tiny, computerized brain and a unique personality making for some seriously awesome toys. But sometimes there's a faulty toy . . . Dan is a "Snugliffic Cuddlestar" bear--he should be perfect for hugging. But because of a malfunctioning chip, Dan is so strong he could crush a car. Thrown into the rejects pile, he meets Arabella, a "Loadsasmiles Sunshine" doll, who has a very short temper. Soon Dan, Arabella, and Flax (a custom-made police robot rabbit) are recruited by the head of the toy world exactly for what makes them unfit. And their first mission is a doozy: to protect a senator's eight-year-old son from being kidnapped. With black-and-white illustrations throughout, this hilarious book has reluctant reader appeal written all over it.
Author: Marvin Miller
Publisher:
ISBN: 9780439761192
Category : Ciphers
Languages : en
Pages : 84
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Book Description
This book contains fourteen new tricky codes all designed to help you keep your secrets safe.
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!
Author: Elizabeth James
Publisher:
ISBN:
Category : Ciphers
Languages : en
Pages : 66
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Book Description
Presents various methods of writing, speaking, and signaling secret messages.
Author: Eugene H. Baker
Publisher:
ISBN: 9780895651501
Category : Juvenile Fiction
Languages : en
Pages : 38
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Book Description
Discusses a variety of codes and explains how to send and decode messages.
