Martin K. Everyday Cryptography.Fundamental Principles and Applications 3ed 2025

Textbook in PDF format

Cryptography is a vital technology that underpins the security of information in computer networks. This book presents a comprehensive introduction to the role that cryptography plays in supporting digital security for everyday technologies such as the internet, mobile phones, Wi-Fi networks, payment cards and cryptocurrencies.
This book is intended to be introductory, self-contained and widely accessible. It is suitable for a first read on cryptography. Almost no prior knowledge of mathematics is required since the book deliberately avoids the details of the mathematical techniques underpinning cryptographic mechanisms. Instead, it concerns what a normal user or practitioner of cyber security needs to know about cryptography in order to understand the design and use of everyday cryptographic applications. This includes the implementation of cryptography and key management