Saturday, April 13, 2013

SteganoGraphy.

Steganography

Steganography in Greek means covered or surreptitious writing and is a long practiced form of conceal information. It is the art of concealing the information within seemingly spotless carriers. Steganography in an essence camouflages a sum to hide its existence and make it seem unperceivable thus concealing the detail that a message is being sent altogether. According to the dictionary, steganography (also cognize as steg or stego) is the art of writing in cipher, or in characters, which are not intelligible except to persons who drop the key; cryptography. In computer terms, steganography has evolved into the practice of covert a message within a larger unmatched in such a way that others cannot discern the front line or contents of the hidden message. In contemporary terms, steganography has evolved into a digital strategy of hiding a send in some form of multimedia, such as an image, an audio file (like a .wav or mp3) or even a video file.

Steganography is really nothing new as it has been around since the propagation of ancient Rome. Our earliest records of steganography were recorded by the Greek historian Herodotus and date back to Greek times. When the Greek tyrant Histiaeus was held as a prisoner by king Darius in Susa during the fifth century B.

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C, he had to send a secret message to his son-in-law Aristagoras in Miletus. Histiaeus shaved the head of a slave and tattooed a message on his scalp. When the slaves hair had grown long bounteous he was dispatched to Miletus. Then there were the ancient Romans who used imperceptible inks. They used to write between lines using invisible inks ground on readily-available substances such as fruit juices, urine and milk. When heated, the invisible inks would darken, and become legible.

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A German monk, by the name...

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