Professional Cryptologists

From ancient scribes to modern hackers, cryptology has always been a race between those who hide information and those who uncover it. This book walks through the lives of historic code makers and breakers who served their countries, then shows how today's cryptologists apply similar principles to protect emails, texts, and online purchases. Each chapter explores a key cipher or encryption technique, illustrating how the art of secret writing has evolved over centuries. Practical examples and clear explanations give readers a taste of the problem-solving skills needed in the field.