Crossword clues for steganography
The Collaborative International Dictionary
Steganography \Steg`a*nog"ra*phy\, n. [Gr. ? covered (fr. ? to cover closely) + -graphy.] The art of writing in cipher, or in characters which are not intelligible except to persons who have the key; cryptography.
Wiktionary
n. 1 The practice of hiding messages, so that the presence of the message itself is hidden, often by writing them in places where they may not be found until someone finds the secret message in whatever is being used to hide it. 2 Specifically: the use of small files in computers to communicate secret information. Compare cryptography for a more general idea.
Wikipedia
Steganography (, ) is the practice of concealing a file, message, image, or video within another file, message, image, or video. The word steganography combines the Greek words steganos (στεγανός), meaning "covered, concealed, or protected", and graphein (γράφειν) meaning "writing".
The first recorded use of the term was in 1499 by Johannes Trithemius in his Steganographia, a treatise on cryptography and steganography, disguised as a book on magic. Generally, the hidden messages appear to be (or be part of) something else: images, articles, shopping lists, or some other cover text. For example, the hidden message may be in invisible ink between the visible lines of a private letter. Some implementations of steganography that lack a shared secret are forms of security through obscurity, whereas key-dependent steganographic schemes adhere to Kerckhoffs's principle.
The advantage of steganography over cryptography alone is that the intended secret message does not attract attention to itself as an object of scrutiny. Plainly visible encrypted messages—no matter how unbreakable—arouse interest, and may in themselves be incriminating in countries where encryption is illegal. Thus, whereas cryptography is the practice of protecting the contents of a message alone, steganography is concerned with concealing the fact that a secret message is being sent, as well as concealing the contents of the message.
Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program or protocol. Media files are ideal for steganographic transmission because of their large size. For example, a sender might start with an innocuous image file and adjust the color of every 100th pixel to correspond to a letter in the alphabet, a change so subtle that someone not specifically looking for it is unlikely to notice it.
Usage examples of "steganography".
In the digital world of today, practitioners of steganography could hide their messages in a wide array of data formats.
In the computer age, steganography has gone digital, with messages hidden in the same zeroes and ones that are used to construct otherwise unassuming images or text.
But steganography aims for a deeper sort of cover: it assumes that if the message is so much as found to exist, the game is over.
It was clear to me that the Esphahnians used some form of steganography in their letters, but I could not make out how they did it.
If the steganography was right, they had a few days, until early the following week, before the first flights were due to take off.
Still, he had been forced to admit, dangerous steganography was not an absolute impossibility, at least in the abstract.
While reading a paper on public key steganography and parasite network identity spoofing he mechanically assimilates a bowl of corn flakes and skimmed milk, then brings a platter of wholemeal bread and slices of some weird seed-infested Dutch cheese back to his place.
While reading a paper on public key steganography and parasite network identity spoofing he mechanically assimilates a bowl of cornflakes and skimmed milk, then brings a platter of whole grain bread and slices of some weird seed-infested Dutch cheese back to his place.
But most kids didn't have invisible friends who talked back via the expensive net implants their parents had shelled out for, much less taught them skills like steganography, traffic analysis, tail spotting, and Dumpster diving.
There were books on navigation, agriculture, architecture, medicine, horticulture, theology, education, natural philosophy, astronomy, astrology, mathematics, geometry and steganography or 'secret writing'.
Chapter Ten is where Wilkins explains steganography, or how to embed a subliminal message in an innocuous-seeming letter—.