Cryptography. How to Protect Your Data in the Digital Space

Even before the invention of the internet, people protected their data using codes. Up until the end of the 20th century, encryption was the most popular way to protect secret information. Today, cryptography surrounds us everywhere: when we pay with... a bank card in a store, check our email, chat with friends in messengers, and more. • What are the consequences of connecting to an unsecured Wi-Fi network? • Is it really important to have different passwords for different accounts? • Is it safe to convert money into bitcoins? • How does data leakage occur? • Is it possible to maintain anonymity on the Internet? Leading information security expert Kit Martin answers these and other questions. He not only debunks myths about dangers on the internet but also explains how cryptography works and how to use its mechanisms for the benefit of your own digital security. About the author: Kit Martin is a professor of information security at one of the best universities in England, Royal Holloway, London. He has been researching cryptography for over 30 years.