Chapter 3

Data Hiding Using Steganographic Techniques

Abstract

Sending encrypted messages will draw the attention of third parties like government intelligence agencies and hackers, perhaps causing attempts to attack encrypted messages and reveal your original message. Digital steganography helps us hide the existence of a secret message and to use public channels like the Internet to send it without the fear of being discovered by outside observers. This chapter is a core one in our book, divided into three main sections, and each one talks in detail about implementing steganography using a different digital media file. We begin our discussion by concealing data using text. This is the oldest technique used by ancient civilizations to conceal secret ...

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