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Computer image manipulation represented by gray heptagons
Answer for the clue "Computer image manipulation represented by gray heptagons ", 13 letters:
steganography
Word definitions for steganography in dictionaries
Wiktionary
Word definitions in 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 ...
Wikipedia
Word definitions in 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 ...
The Collaborative International Dictionary
Word definitions in 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.
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—.