Fundamentals of Cryptography and Network Security

Fundamentals of Cryptography and Network Security provides a comprehensive introduction to the principles and practices of information security. The book explores cryptographic techniques, encryption and decryption, authentication, digital signatures, security protocols, network protection, firewalls, and threat detection. It explains essential concepts through clear explanations and practical examples, helping readers understand how to protect data, secure communication, and address modern cybersecurity challenges. Designed for students, researchers, educators, and IT professionals, this book builds a strong foundation in cryptography and network security, supporting academic learning, practical problem-solving, and further exploration of emerging security technologies.

Dr. M. Jayanthi Rao is a Professor in the Department of Computer Science and Engineering at Aditya Institute of Technology and Management (AITAM), K. Kotturu, Tekkali, Srikakulam, Andhra Pradesh, India. he holds a Ph.D. from Krishna University, and has completed his Post-Doctoral Research (PDF) at SIT University, Singapore. he has 19 years of professional experience, including 16 years of teaching and 3 years of research experience. Her research interests include Artificial Intelligence, Machine Learning, Deep Learning, Internet of Things (IoT), and Smart Systems. She has published 50+ research papers, completed 2 sponsored/R&D projects, undertaken 2 consultancy projects, and published 11 patents. he is currently guiding 5 Ph.D. scholars. Dr. Jayanthi Rao has received several recognitions for his contributions to teaching and research, including the Dr. Sarvepalli Radhakrishnan Best Teacher Award, Kalpa Acharya Award, and Motivation Learner Award. He published 4 books ,he is actively involved in teaching, research, innovation, academic mentoring, and project guidance.