2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/155675The purpose of this tutorial is to present an overview of various information hiding techniques. A brief history of steganography is provided along with techniques that were used to hide information. Text, image and audio based information hiding techniques are discussed. This paper also provides a basic introduction to digital watermarking.Cryptography and SecurityInformation Retrievaltext