Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The deliberate concealment of data within other data, as by embedding digitized text in a digitized image.

from The Century Dictionary.

  • noun The art of writing in cipher, or in characters which are not intelligible except to the persons who correspond with each other; cryptography.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The art of writing in cipher, or in characters which are not intelligible except to persons who have the key; cryptography.
  • noun The branch of cryptography in which messages are hidden inside other messages; -- used commonly for the process of hiding messages inside a computerized image file, as for example hiding the name and copyright notice of the owner of an image as protection against violation of the copyright.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun 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.
  • noun Specifically: the use of small files in computers to communicate secret information.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun act of writing in code or cipher

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin steganographia, cryptography, cipher : Greek steganos, covered (from stegein, to cover; see (s)teg- in Indo-European roots) + -graphiā, -graphy.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek στεγανός (steganos, "cover, roof") + γράφω (graphō, "I write")

Examples

  • If done correctly, and cleverly, detecting steganography is extremely difficult.

    The Volokh Conspiracy » End of an era?

  • If done correctly, and cleverly, detecting steganography is extremely difficult.

    The Volokh Conspiracy » End of an era?

  • Indeed, along with encryption, steganography is one of the fundamental ways by which data can be kept confidential.

    Smart Mobs » Blog Archive » What Exactly is Steganography?

  • The process is a network application of steganography, which is the ancient science and art of hiding messages in documents, pictures and other media in a way that can be easily detected by the intended recipient, but not by third parties.

    p2pnet World Headlines – May 29, 2009

  • To be sure, according to the FBI, the suspected Russian agents it rounded up sometimes communicated with Moscow via secret messages hidden in Web pages (in a process called steganography).

    Russian spy case reveals old espionage tricks

  • Others living in New Jersey and Boston used a technique called steganography, in which SVR handlers embedded messages into images on publicly available websites, the FBI said.

    U.S. Charges 11 in Russian Spy Case

  • The process is a network application of steganography, which is the ancient science and art of hiding messages in documents, pictures and other media in a way that can be easily detected by the intended recipient, but not by third parties.

    p2pnet World Headlines – May 29, 2009

  • British and U.S. intelligence sources suspect some of the site's lurid jihad photos and graphics contain secret messages embedded through a technology called steganography, for which free software can be downloaded from the Internet.

    Periscope

  • Several years later, Provos moved his research papers and software related to steganography, which is the science of hiding secret messages, from servers at the U.S.

    CNET News.com

  • Once decrypted, the agency's online puzzle, through a process experts call steganography, yields a hidden message in the form of a keyword.

    NYT > Global Home

Comments

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  • Happily for the paranoid, a trio of researchers reckon they have come up with a way to send secret messages via Skype without tipping off censors or intelligence agencies that something fishy is going on. The three, Wojciech Mazurczyk, Maciej Karas and Krzysztof Szczypiorski, who all work at the Warsaw University of Technology, made use of a technique called steganography, cryptography’s lesser-known, less glamorous cousin. Whereas cryptography relies on the brute force of mathematics to make messages unreadable, steganography relies on stealth and cunning to make them undetectable, by hiding them within other, innocent communications. (A classic example is writing in invisible ink between the lines of an ordinary letter.) That way, potential eavesdroppers are not even aware that a conversation is happening.

    "Speaking with silence: Tinkering with Skype can allow people to send undetectable messages" - The Economist

    http://econ.st/WyHpdg

    February 6, 2013

  • Last year I couldn't remember this word, and tried to figure out what my brain meant by "like cryptography, but also dinosaurs."

    (See stegosaurus)

    June 10, 2015

  • (noun) - The art of secret writing, characters, or cyphers known only to persons that correspond with one another. Steganographist, an artist in private writing. --Nathan Bailey's Universal Etymological English Dictionary, 1749

    February 11, 2018