steganography. The man from that he had to hide the things that belonged only to do or know to whom he was interested, he sought to obtain such privacidad.Se laforma for many is an unfamiliar word, maybe new ... But no, it is of age, the Greeks conocían.Ellos shaved their heads to their slaves, tattooed there the information and then expected to grow hair again.
This could send messages to pass desapercibidos.De understands that there is an art of steganography is to send information in a way that seems not to exist. Tracing the origin of the word we can see that comes from the Greek steganos meaning covered Grapte and writing, which means hidden writing.
The steganographic have used many strategies including tenemosla use of invisible ink or invisible ink, this is made with milk, lemon juice, onion, orange or apple, which work by leaving a footprint that is colorless visible when heating the paper where you left the message.
Today internet is a medium that gives a great facility for this art, and have developed some programs, so this gear used since ancient times and is also updated by the hand of new technology . So we have programs like Steganos, which help maintain the privacy of documentospara greater security.
Nelly Guerrero.
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