Mathematics of Encryption An Elementary Introduction

ISBN-10: 0821883216
ISBN-13: 9780821883211
Edition: 2013
List price: $49.00
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Description: How quickly can you compute the remainder when dividing $109837^{97}$ by 120143? Why would you even want to compute this? And what does this have to do with cryptography? Modern cryptography lies at the intersection of mathematics and computer  More...

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Book details

List price: $49.00
Copyright year: 2013
Publisher: American Mathematical Society
Publication date: 9/12/2013
Binding: Paperback
Pages: 332
Size: 7.00" wide x 10.00" long x 0.75" tall
Weight: 1.562
Language: English

How quickly can you compute the remainder when dividing $109837^{97}$ by 120143? Why would you even want to compute this? And what does this have to do with cryptography? Modern cryptography lies at the intersection of mathematics and computer sciences, involving number theory, algebra, computational complexity, fast algorithms, and even quantum mechanics. Many people think of codes in terms of spies, but in the information age, highly mathematical codes are used every day by almost everyone, whether at the bank ATM, at the grocery checkout, or at the keyboard when you access your email or purchase products online. This book provides a historical and mathematical tour of cryptography, from classical ciphers to quantum cryptography. The authors introduce just enough mathematics to explore modern encryption methods, with nothing more than basic algebra and some elementary number theory being necessary. Complete expositions are given of the classical ciphers and the attacks on them, along with a detailed description of the famous Enigma system. The public-key system RSA is described, including a complete mathematical proof that it works. Numerous related topics are covered, such as efficiencies of algorithms, detecting and correcting errors, primality testing and digital signatures. The topics and exposition are carefully chosen to highlight mathematical thinking and problem solving. Each chapter ends with a collection of problems, ranging from straightforward applications to more challenging problems that introduce advanced topics. Unlike many books in the field, this book is aimed at a general liberal arts student, but without losing mathematical completeness.

Historical introduction Classical cryptology
Methods Enigma and Ultra Classical cryptography
Attacks I Classical cryptography
Attacks II Modern symmetric encryption
Introduction to public-channel cryptography
Public-channel cryptography Error detecting and correcting codes Modern cryptography
Primality testing and factorization Solutions to selected exercises
Bibliography
Index

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