Though often invisible, cryptography plays a critical role in our everyday lives. Broadly defined as a set of tools for establishing security in cyberspace, cryptography enables us to protect our information and share it securely. It underpins the security of mobile phone calls, card payments, web connections, internet messaging, Bitcoin transactions-in short, everything we do online.

Clearly and concisely, Keith Martin reveals the many crucial ways we all rely on cryptographic technology and demystifies its controversial applications and the nuances behind alarming headlines about data breaches or Edward Snowden. Essential reading for anyone with a password, Cryptography offers a profound perspective on personal security, online and off.

About the Author
Keith Martin is a professor of information security at Royal Holloway, University of London, and has worked in cryptographic research for thirty years. He lives in Surrey, United Kingdom.


Book Information
ISBN 9780393867459
Author Keith Martin
Format Paperback
Page Count 320
Imprint WW Norton & Co
Publisher WW Norton & Co
Weight(grams) 252g
Dimensions(mm) 211mm * 140mm * 20mm