Machine Learning Based Identification of DDoS Flood Attack in eHealth Cloud Environment -- Machine Learning Based Phishing E-mail Detection using Persuasion Principle and NLP Techniques -- Cryptanalysis and improvement of a mutual authentication scheme for smart grid communications -- Collision Avoidance and Drowsiness Detection System for Drivers -- A New Algorithm for Encryption and Decryption Using AUM Block Sum Labeling -- Secured Reversible Data Hiding Scheme with NMI Interpolation and Arnold Transformation -- Face Mask Detection Exploiting CNN and MOBILENETV -- Malicious Transaction URL Detection Using Logistic Regression -- Secured Information Communication exploiting Fuzzy weight strategy -- Secure Data Communication Through Improved Multi-Level Pixel Value Ordering using Center-Folding Strategy -- Perseverance of the Audio Data using RNN Implied Matrix Segmentation based Lossless Encoder -- SVD based Watermarking Scheme for Medical ImageAuthentication -- Watermark based Image Authentication with Coefficient Value Differencing and Histogram Shifting -- IEMS3: An Image Encryption Scheme Using Modified SNOW 3G Algorithm.

The book is a collection of best selected research papers presented at International Conference on Network Security and Blockchain Technology (ICNSBT 2023), held at Vidyasagar University, Midnapore, India, during March 24-26, 2023. The book discusses recent developments and contemporary research in cryptography, network security, cybersecurity, and blockchain technology. Authors are eminent academicians, scientists, researchers, and scholars in their respective fields from across the world.