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.
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.
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!
Download or read book Breaking Codes written by Pierre Berloquin and published by Sterling Publishing Company Incorporated. This book was released on 2014-08-19 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Breaking Codes Breaking Barriers written by Karen Kovach and published by . This book was released on 2001 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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 274 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
Download or read book Speaking Secret Codes written by Sheri Bell-Rehwoldt and published by Capstone. This book was released on 2010-07 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Discusses different methods for speaking secret codes"--Provided by publisher.
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.
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.
Download or read book Break the Code written by Bud Johnson and published by Courier Corporation. This book was released on 2013-05-22 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Modern Cryptanalysis written by Christopher Swenson and published by John Wiley & Sons. This book was released on 2012-06-27 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: As an instructor at the University of Tulsa, Christopher Swenson could find no relevant text for teaching modern cryptanalysis?so he wrote his own. This is the first book that brings the study of cryptanalysis into the 21st century. Swenson provides a foundation in traditional cryptanalysis, examines ciphers based on number theory, explores block ciphers, and teaches the basis of all modern cryptanalysis: linear and differential cryptanalysis. This time-honored weapon of warfare has become a key piece of artillery in the battle for information security.
Download or read book Codes Ciphers Secrets and Cryptic Communication written by Fred B. Wrixon and published by Black Dog & Leventhal Pub. This book was released on 2005 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covert communications have won or lost wars, exposed political intrigue, disguised secret religions and societies, and secured financial transactions. This immensely readable world history of clandestine communication—finally in paperback—includes illustrations, diagrams, and puzzles that instruct readers how to become amateur cryptographers. It’s the last word on secret languages!
Download or read book Breaking the Codes written by Ann-Louise Shapiro and published by . This book was released on 2022 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breaking the Codes is a cultural history of the fin-de-siecle that uses the "problem" of the criminal woman to examine both the debates around the appropriate place of women in French society and the ways in which issues of gender were central to the most important cultural transformations of the period. The author asserts that "female criminality" was a code that condensed and obscured larger concerns. For example, to what degree and in what ways did the symbolic overtones of female criminality connect to the substantive issues that appeared over and over again in the stories of women's crime? How were the crimes of domestic violence, infanticide, and abortion interpreted in the context of broader debates about divorce, depopulation, sexuality, and women's roles in the public sphere? What was the role of expert commentary - from the forensic psychiatrist, the criminologist, the legal scholar - in producing a normative code for female behavior? And how did this code accommodate or resist the newly recognized voice of popular opinion and changing notions of citizenship? This study demonstrates both the inadequacy of the categories of public and private as they have been conventionally used to segregate the subjects of historical inquiry and the artificiality of the boundaries between high and low culture. Instead, it moves between domestic life and public courtrooms, between social science literature and popular journalism, analyzing the complex responses to female crime among different constituencies and through different genres. In so doing, the author sheds light on various overlapping processes of cultural negotiation in a period of profound change.
Download or read book The Cryptoclub written by Janet Beissinger and published by CRC Press. This book was released on 2018-10-08 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Join the Cryptokids as they apply basic mathematics to make and break secret codes. This book has many hands-on activities that have been tested in both classrooms and informal settings. Classic coding methods are discussed, such as Caesar, substitution, Vigenère, and multiplicative ciphers as well as the modern RSA. Math topics covered include: - Addition and Subtraction with, negative numbers, decimals, and percentages - Factorization - Modular Arithmetic - Exponentiation - Prime Numbers - Frequency Analysis. The accompanying workbook, The Cryptoclub Workbook: Using Mathematics to Make and Break Secret Codes provides students with problems related to each section to help them master the concepts introduced throughout the book. A PDF version of the workbook is available at no charge on the download tab, a printed workbook is available for $19.95 (K00701). The teacher manual can be requested from the publisher by contacting the Academic Sales Manager, Susie Carlisle
Download or read book The Woman Who Smashed Codes written by Jason Fagone and published by HarperCollins. This book was released on 2017-09-26 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: National Bestseller NPR Best Book of the Year “Not all superheroes wear capes, and Elizebeth Smith Friedman should be the subject of a future Wonder Woman movie.” —The New York Times Joining the ranks of Hidden Figures and In the Garden of Beasts, the incredible true story of the greatest codebreaking duo that ever lived, an American woman and her husband who invented the modern science of cryptology together and used it to confront the evils of their time, solving puzzles that unmasked Nazi spies and helped win World War II. In 1916, at the height of World War I, brilliant Shakespeare expert Elizebeth Smith went to work for an eccentric tycoon on his estate outside Chicago. The tycoon had close ties to the U.S. government, and he soon asked Elizebeth to apply her language skills to an exciting new venture: code-breaking. There she met the man who would become her husband, groundbreaking cryptologist William Friedman. Though she and Friedman are in many ways the "Adam and Eve" of the NSA, Elizebeth’s story, incredibly, has never been told. In The Woman Who Smashed Codes, Jason Fagone chronicles the life of this extraordinary woman, who played an integral role in our nation’s history for forty years. After World War I, Smith used her talents to catch gangsters and smugglers during Prohibition, then accepted a covert mission to discover and expose Nazi spy rings that were spreading like wildfire across South America, advancing ever closer to the United States. As World War II raged, Elizebeth fought a highly classified battle of wits against Hitler’s Reich, cracking multiple versions of the Enigma machine used by German spies. Meanwhile, inside an Army vault in Washington, William worked furiously to break Purple, the Japanese version of Enigma—and eventually succeeded, at a terrible cost to his personal life. Fagone unveils America’s code-breaking history through the prism of Smith’s life, bringing into focus the unforgettable events and colorful personalities that would help shape modern intelligence. Blending the lively pace and compelling detail that are the hallmarks of Erik Larson’s bestsellers with the atmosphere and intensity of The Imitation Game, The Woman Who Smashed Codes is page-turning popular history at its finest.
Download or read book Breaking Japanese Diplomatic Codes written by Desmond Ball and published by ANU E Press. This book was released on 2013-09-01 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the Second World War, Australia maintained a super-secret organisation, the Diplomatic (or `D’) Special Section, dedicated to breaking Japanese diplomatic codes. The Section has remained officially secret as successive Australian Governments have consistently refused to admit that Australia ever intercepted diplomatic communications, even in war-time. This book recounts the history of the Special Section and describes its code-breaking activities. It was a small but very select organisation, whose `technical’ members came from the worlds of Classics and Mathematics. It concentrated on lower-grade Japanese diplomatic codes and cyphers, such as J-19 (FUJI), LA and GEAM. However, towards the end of the war it also worked on some Soviet messages, evidently contributing to the effort to track down intelligence leakages from Australia to the Soviet Union.
