Making, Breaking Codes
Making, Breaking Codes

Author: Paul B. Garrett

Publisher: Pearson

Published: 2001

Total Pages: 552

ISBN-13:

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This unique book explains the basic issues of classical and modern cryptography, and provides a self contained essential mathematical background in number theory, abstract algebra, and probability--with surveys of relevant parts of complexity theory and other things. A user-friendly, down-to-earth tone presents concretely motivated introductions to these topics. More detailed chapter topics include simple ciphers; applying ideas from probability; substitutions, transpositions, permutations; modern symmetric ciphers; the integers; prime numbers; powers and roots modulo primes; powers and roots for composite moduli; weakly multiplicative functions; quadratic symbols, quadratic reciprocity; pseudoprimes; groups; sketches of protocols; rings, fields, polynomials; cyclotomic polynomials, primitive roots; pseudo-random number generators; proofs concerning pseudoprimality; factorization attacks finite fields; and elliptic curves. For personnel in computer security, system administration, and information systems.

Breaking Secret Codes
Breaking Secret Codes

Author: Jillian Gregory

Publisher: Capstone

Published: 2010

Total Pages: 33

ISBN-13: 1429645687

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"Discusses different methods for breaking secret codes"--Provided by publisher.

Speaking Secret Codes
Speaking Secret Codes

Author: Sheri Bell-Rehwoldt

Publisher: Capstone

Published: 2010-07

Total Pages: 18

ISBN-13: 1429645695

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"Discusses different methods for speaking secret codes"--Provided by publisher.

Code Making and Code Breaking
Code Making and Code Breaking

Author: Jack Luger

Publisher: Independently Published

Published: 2024-09-20

Total Pages: 0

ISBN-13:

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Code Making and Code Breaking by Jack Luger is a practical guide to the world of cryptography. This illustrated book explores the art of creating secret codes and the methods used to decipher them. From simple substitution ciphers to complex algorithms, Luger delves into the history, techniques, and applications of cryptography. Whether you're a hobbyist, student, or professional, this book offers a clear and engaging introduction to the fascinating world of code making and breaking.

Secrets of Making and Breaking Codes
Secrets of Making and Breaking Codes

Author: Hamilton Nickels

Publisher: Skyhorse

Published: 2014-07-15

Total Pages: 144

ISBN-13: 9781629142067

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Ever since humans first began to communicate, we’ve had secrets to keep — secrets of state, war, business, or the heart. From the moment the first secret message was sent, others were busy trying to decipher it. By rearranging, substituting, or transposing symbols, any message can be encoded or decoded — if you know how. Secrets of Making and Breaking Codes is a practical field manual designed to teach you the basic mechanics of enciphering and deciphering communications. The author has used his extensive knowledge of and experience in electronic communications and languages — as well as his decades of fascination with secret codes — to demystify the field of cryptology. Hamilton Nickels uses plain, uncomplicated English and simple, workable systems that rely on neither advanced mathematics, nor on ethereal philosophies. This is the only hands-on guide to both the simplest cipher schemes — that need little more than scratch paper and a pencil to crack — as well as more sophisticated codes that use one-time code books, pocket calculators, and the most advanced computer-based systems used by the military and diplomatic corps of most governments. Letting the wrong eyes see a secret message can often make the difference between victory and defeat, success and failure, life and death. Secrets of Making and Breaking Codes will make mastering codes easier.

Codes, Ciphers and Secret Writing
Codes, Ciphers and Secret Writing

Author: Martin Gardner

Publisher: Courier Corporation

Published: 1984-01-01

Total Pages: 100

ISBN-13: 9780486247618

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Explains various methods used in cryptography and presents examples to help readers in breaking secret codes

The Code Book: The Secrets Behind Codebreaking
The Code Book: The Secrets Behind Codebreaking

Author: Simon Singh

Publisher: Delacorte Press

Published: 2002-05-14

Total Pages: 274

ISBN-13: 0375890122

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"As gripping as a good thriller." --The Washington Post Unpack the science of secrecy and discover the methods behind cryptography--the encoding and decoding of information--in this clear and easy-to-understand young adult adaptation of the national bestseller that's perfect for this age of WikiLeaks, the Sony hack, and other events that reveal the extent to which our technology is never quite as secure as we want to believe. Coders and codebreakers alike will be fascinated by history's most mesmerizing stories of intrigue and cunning--from Julius Caesar and his Caeser cipher to the Allies' use of the Enigma machine to decode German messages during World War II. Accessible, compelling, and timely, The Code Book is sure to make readers see the past--and the future--in a whole new way. "Singh's power of explaining complex ideas is as dazzling as ever." --The Guardian

Cracking Codes with Python
Cracking Codes with Python

Author: Al Sweigart

Publisher: No Starch Press

Published: 2018-01-23

Total Pages: 419

ISBN-13: 1593278225

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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!

Introduction to Cryptography
Introduction to Cryptography

Author: Wade Trappe

Publisher: Prentice Hall

Published: 2006

Total Pages: 577

ISBN-13: 9780131981997

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This text is for a course in cryptography for advanced undergraduate and graduate students. Material is accessible to mathematically mature students having little background in number theory and computer programming. Core material is treated in the first eight chapters on areas such as classical cryptosystems, basic number theory, the RSA algorithm, and digital signatures. The remaining nine chapters cover optional topics including secret sharing schemes, games, and information theory. Appendices contain computer examples in Mathematica, Maple, and MATLAB. The text can be taught without computers.

Making Secret Codes
Making Secret Codes

Author: Jillian Gregory

Publisher: Capstone

Published: 2010-07

Total Pages: 18

ISBN-13: 1429645679

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"Discusses different methods for creating secret codes"--Provided by publisher.