By Meo Pasquale, Ciardiello Silvestro, IT department, Palermo Univeristy. A text message may be hidden in two basic ways:
steganography conceal the very existence of the message, while cryptography renders the message unintelligible to outsiders by various transformations of the plaintext, where the plaintext is the message that will be put into secret form. This italian guide is a guide about steganography.
