Cryptography and Cyber Security BY Dr . R. PRABHAKARAN , Dr J.PRASSANNA

In the rapidly evolving landscape of digital technology, the importance of cryptography and cyber security has never been more critical. As our reliance on digital systems and networks grows, so too does the need to protect sensitive information from an ever-increasing array of cyber threats. This textbook, “Cryptography and Cyber Security,” is designed to provide a comprehensive introduction to the foundational concepts and advanced techniques essential for safeguarding digital information.
The field of cryptography, with its roots in ancient communication, has evolved into a sophisticated science integral to modern cyber security. Meanwhile, the realm of cyber security has expanded to encompass a wide range of strategies and technologies aimed at defending against cyber attacks. This textbook bridges these two interconnected disciplines, offering readers a deep understanding of both cryptographic methods and cyber security practices.
This textbook is intended for undergraduate and graduate students pursuing degrees in computer science, information technology, and related fields. It is also a valuable resource for professionals in the cyber security industry, including security analysts, cryptographers, and IT managers, who seek to enhance their knowledge and skills.
We extend our gratitude to the many experts and practitioners who have contributed their insights and expertise to this book. Their input has been invaluable in ensuring that the content is both accurate and relevant to current industry standards.
As you embark on your journey through the pages of this book, we hope it serves as a thorough and engaging guide that deepens your understanding of cryptography and cyber security. Our goal is to equip you with the knowledge and skills necessary to navigate and protect the digital world confidently.