Code Making And Code Breaking

Author : Jack Luger
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.50/5 ( download)

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Download or read book Code Making and Code Breaking written by Jack Luger and published by . This book was released on 1990 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: We all have something to hide, don't we? From nosy neighbors, cops, tax collectors, burglars, and other riffraff who have no respect for privacy. The books in this section contain specific instructions for hiding guns, gold, sexual implements, survival foods, or anything else you want to be Yours. There are also books for general privacy -- how to keep it. This section is a must for every private citizen. "A rather good introduction to the subject of keeping what you write secret from others". -- Factsheet Five We live in an information age; information is bought, sold and stolen like any other good. Businesses and individuals are learning to keep their secrets safe with this practical, illustrated guide to building and busting codes. Learn how to construct simple or complex codes. Learn how computers are used to make and break codes. Learn why the most unbreakable code isn't always the best. Ideal for those interested in professional personal privacy.

Author : Hamilton Nickels
Publisher : Skyhorse
ISBN 13 : 9781629142067
Total Pages : 144 pages
Book Rating : 4.69/5 ( download)

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Download or read book Secrets of Making and Breaking Codes written by Hamilton Nickels and published by Skyhorse. This book was released on 2014-07-15 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Paul B. Garrett
Publisher : Pearson
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.53/5 ( download)

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Download or read book Making, Breaking Codes written by Paul B. Garrett and published by Pearson. This book was released on 2001 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Simon Singh
Publisher : Delacorte Press
ISBN 13 : 0375890122
Total Pages : 272 pages
Book Rating : 4.23/5 ( download)

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Download or read book The Code Book: The Secrets Behind Codebreaking written by Simon Singh and published by Delacorte Press. This book was released on 2002-05-14 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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

Author : Liza Mundy
Publisher : Hachette Books
ISBN 13 : 0316352551
Total Pages : 524 pages
Book Rating : 4.50/5 ( download)

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Download or read book Code Girls written by Liza Mundy and published by Hachette Books. This book was released on 2017-10-10 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The award-winning New York Times bestseller about the American women who secretly served as codebreakers during World War II--a "prodigiously researched and engrossing" (New York Times) book that "shines a light on a hidden chapter of American history" (Denver Post). Recruited by the U.S. Army and Navy from small towns and elite colleges, more than ten thousand women served as codebreakers during World War II. While their brothers and boyfriends took up arms, these women moved to Washington and learned the meticulous work of code-breaking. Their efforts shortened the war, saved countless lives, and gave them access to careers previously denied to them. A strict vow of secrecy nearly erased their efforts from history; now, through dazzling research and interviews with surviving code girls, bestselling author Liza Mundy brings to life this riveting and vital story of American courage, service, and scientific accomplishment.

Author : Various
Publisher : Rosen Young Adult
ISBN 13 : 9781508173632
Total Pages : 0 pages
Book Rating : 4.3X/5 ( download)

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Download or read book Cryptography written by Various and published by Rosen Young Adult. This book was released on 2016-12-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data encryption and security is an increasingly relevant subject in our digitized world. Cryptography is used to make e-commerce and online communication secure, protecting banking information, sensitive documents, and more. When you purchase something online or send a confidential e-mail, protocols created by cryptographers protect that information. However, if your private information is hacked electronically, cryptographers are also to blame. This series sheds light on the history of cryptography, the "arms race" between those protecting sensitive information and those trying to access it, the lives of famous cryptographers, and the tools and methods that cryptographers use.

Author : Peter Donovan
Publisher : Springer
ISBN 13 : 3319082787
Total Pages : 387 pages
Book Rating : 4.83/5 ( download)

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Download or read book Code Breaking in the Pacific written by Peter Donovan and published by Springer. This book was released on 2014-08-14 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reveals the historical context and the evolution of the technically complex Allied Signals Intelligence (Sigint) activity against Japan from 1920 to 1945. It traces the all-important genesis and development of the cryptanalytic techniques used to break the main Japanese Navy code (JN-25) and the Japanese Army’s Water Transport Code during WWII. This is the first book to describe, explain and analyze the code breaking techniques developed and used to provide this intelligence, thus closing the sole remaining gap in the published accounts of the Pacific War. The authors also explore the organization of cryptographic teams and issues of security, censorship, and leaks. Correcting gaps in previous research, this book illustrates how Sigint remained crucial to Allied planning throughout the war. It helped direct the advance to the Philippines from New Guinea, the sea battles and the submarine onslaught on merchant shipping. Written by well-known authorities on the history of cryptography and mathematics, Code Breaking in the Pacific is designed for cryptologists, mathematicians and researchers working in communications security. Advanced-level students interested in cryptology, the history of the Pacific War, mathematics or the history of computing will also find this book a valuable resource.

Author : Jillian Gregory
Publisher : Capstone
ISBN 13 : 1429645687
Total Pages : 33 pages
Book Rating : 4.83/5 ( download)

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Download or read book Breaking Secret Codes written by Jillian Gregory and published by Capstone. This book was released on 2010 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Discusses different methods for breaking secret codes"--Provided by publisher.

Author : Al Sweigart
Publisher : No Starch Press
ISBN 13 : 1593278225
Total Pages : 419 pages
Book Rating : 4.29/5 ( download)

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Download or read book Cracking Codes with Python written by Al Sweigart and published by No Starch Press. This book was released on 2018-01-23 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Martin Gardner
Publisher : Courier Corporation
ISBN 13 : 9780486247618
Total Pages : 100 pages
Book Rating : 4.19/5 ( download)

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Download or read book Codes, Ciphers and Secret Writing written by Martin Gardner and published by Courier Corporation. This book was released on 1984-01-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains various methods used in cryptography and presents examples to help readers in breaking secret codes