This book presents a comprehensive study of information hiding techniques with a special emphasis on recursive equation–based approaches in digital steganography. It explores how secret data can be securely embedded within digital images by genera...

This book presents a comprehensive study of information hiding techniques with a special emphasis on recursive equation–based approaches in digital steganography. It explores how secret data can be securely embedded within digital images by generating randomized embedding locations using linear and higher-order recursive equations. The book introduces novel algorithms for embedding and extraction, ensuring enhanced security, imperceptibility, and robustness against detection.In addition to data hiding, the work also addresses authentication by integrating message digest techniques within digital covers. A comparative analysis of various methods is provided using performance metrics such as PSNR and robustness parameters. Designed for researchers, students, and professionals, this book offers both theoretical insights and practical methodologies for advancing secure digital communication and information protection.