Introduction to Codes and Ciphers

Introduction to Codes and Ciphers
Author :
Publisher : Independently Published
Total Pages : 176
Release :
ISBN-10 : 1794594655
ISBN-13 : 9781794594654
Rating : 4/5 (55 Downloads)

Synopsis Introduction to Codes and Ciphers by : Jenny Kile

Inside the pages of the book, Introduction to Codes and Ciphers, are numerous ways secrets have been hidden in the past, and how they can be used for today's puzzles, geocaching, armchair treasure hunts, and other forms of entertaining fun.Creativity and imagination are often the best tools for discovering the most covert techniques, but understanding how systems work to transform, conceal, or change what is placed in plain view, for all to see, will open your eyes to the countless possibilities secrets can be hidden right in front of you.Enjoy learning the historical methods, while preparing your mind for the second and third part of the book. There you will find over 20 famous unsolved codes, ciphers, and mysterious writings, and a final challenge puzzle worth $500 cash to the first person who solves it. Treasures await inside.

Codes and Ciphers

Codes and Ciphers
Author :
Publisher : Cambridge University Press
Total Pages : 254
Release :
ISBN-10 : 0521008905
ISBN-13 : 9780521008907
Rating : 4/5 (05 Downloads)

Synopsis Codes and Ciphers by : R. F. Churchhouse

Publisher Description

Secret and Urgent

Secret and Urgent
Author :
Publisher :
Total Pages : 0
Release :
ISBN-10 : 0894122614
ISBN-13 : 9780894122613
Rating : 4/5 (14 Downloads)

Synopsis Secret and Urgent by : Fletcher Pratt

Cracking Codes with Python

Cracking Codes with Python
Author :
Publisher : No Starch Press
Total Pages : 419
Release :
ISBN-10 : 9781593278229
ISBN-13 : 1593278225
Rating : 4/5 (29 Downloads)

Synopsis Cracking Codes with Python by : Al Sweigart

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!

Secret Code Book: Substitution Ciphers

Secret Code Book: Substitution Ciphers
Author :
Publisher : Lulu.com
Total Pages : 58
Release :
ISBN-10 : 9781387346080
ISBN-13 : 1387346083
Rating : 4/5 (80 Downloads)

Synopsis Secret Code Book: Substitution Ciphers by : John Redden

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.

Making, Breaking Codes

Making, Breaking Codes
Author :
Publisher : Pearson
Total Pages : 552
Release :
ISBN-10 : STANFORD:36105025071353
ISBN-13 :
Rating : 4/5 (53 Downloads)

Synopsis Making, Breaking Codes by : Paul B. Garrett

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.

The Code Book: The Secrets Behind Codebreaking

The Code Book: The Secrets Behind Codebreaking
Author :
Publisher : Delacorte Press
Total Pages : 274
Release :
ISBN-10 : 9780375890123
ISBN-13 : 0375890122
Rating : 4/5 (23 Downloads)

Synopsis The Code Book: The Secrets Behind Codebreaking by : Simon Singh

"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

Codes and Ciphers - A History of Cryptography

Codes and Ciphers - A History of Cryptography
Author :
Publisher : Read Books Ltd
Total Pages : 153
Release :
ISBN-10 : 9781473350915
ISBN-13 : 1473350913
Rating : 4/5 (15 Downloads)

Synopsis Codes and Ciphers - A History of Cryptography by : Alexander D'Agapeyeff

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.

Codes, Ciphers, Secrets and Cryptic Communication

Codes, Ciphers, Secrets and Cryptic Communication
Author :
Publisher : Black Dog & Leventhal Pub
Total Pages : 704
Release :
ISBN-10 : 1579124852
ISBN-13 : 9781579124854
Rating : 4/5 (52 Downloads)

Synopsis Codes, Ciphers, Secrets and Cryptic Communication by : Fred B. Wrixon

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!

Break the Code

Break the Code
Author :
Publisher : Courier Corporation
Total Pages : 86
Release :
ISBN-10 : 9780486291468
ISBN-13 : 0486291464
Rating : 4/5 (68 Downloads)

Synopsis Break the Code by : Bud Johnson

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.