steganography

(redirected from stego)
Also found in: Dictionary, Thesaurus.

steganography

[‚steg·ə′näg·rə·fē]
(computer science)
The art and science of hiding a message in a medium, such as a digital picture or audio file, so as to defy detection.

steganography

(security)
Hiding a secret message within a larger one in such a way that others can not discern the presence or contents of the hidden message. For example, a message might be hidden within an image by changing the least significant bits to be the message bits.

[Chaffing and Winnowing: Confidentiality without Encryption, Ronald L. Rivest, MIT Lab for Computer Science, 1998-03-22].

steganography

Hiding a message within an image, audio or video file. Used as an alternate to encryption, it takes advantage of unused bits within the file structure or bits that are mostly undetectable if altered. A steganographic message rides secretly to its destination, unlike encrypted messages, which although undecipherable without the decryption key, can be identified as encrypted. For a white paper on the subject written by Neil F. Johnson of George Mason University, visit www.jjtc.com/Steganography. See ScramDisk and social steganography.
References in periodicals archive ?
STEGO INDUSTRIES MAKES THE GRADE AS NAMED EXCLUSIVE ARIAS SALES PARTNER
Sharing secrets in stego images with authentication.
Imperceptibility (or fidelity) is referred to the perceptual difference between the stego and original image and can be tested subjectively.
Using a stego key it can be used for encryption of the hidden message and/or for randomization in the stego system.
Thus, even a part of stego images are lost during transmission, most of the shares can still be extracted from the remaining stego images, and the shares can be used to recover the secret information.
7 Cecilia Stego Chilo has resigned from which European country's new cabinet after admitting she hadn't paid her TV licence fee for 16 years?
Through the use of currently available steganographic programs, the task of embedding information within bitmap images allows for the forensic assessment of both the innocent and stego data.
Re-election of all Board Members: Hakan Buskhe, Johan Forssell, Sten Jakobsson,Per-Arne Sandstrom,Cecilia Stego Chils, ke Svensson, Lena Treschow Torell,Joakim Westhand Marcus Wallenberg.
USA) 34 Stego Elektrotechnik GmbH (Germany) 34 Taco, Inc.
The original image in which we intend to hide the secret image is called the cover image, and the image after embedding is called the stego image.
For performance evaluation, a database composed of 5600 plain and stego images (generated by using seven different embedding schemes) was established.
Joakim Westh, Cecilia Stego Chils and Johan Forssell today voted on to the Saab (STO:SAABB) Board of Directors.