steganography


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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 ?
According to the current research works for steganalysis of content-adaptive JPEG steganography, the designs of steganalysis feature and classifier are both important for the improvement of the detection accuracy.
An Overview of Steganography for the Computer Forensics Examiner.
Image steganography is used to increase the medical image security, confidentiality and integrity.
however, Kaspersky Lab revealed when it comes to attacks using steganography, the detection of data exfiltration becomes a difficult task.
Least significant-bits (LSB) replacement is one of the oldest and well known technique used for image steganography (Das et al.
Terms of ensuring the sustainability of the steganography algorithm during the organization of steganography transformation into a spatial domain of cover image.
As an important branch of information security, information hiding, also called steganography, has provided an efficient method to protect the security of sensitive information.
EL-Emam, "Hiding a large amount of data with high security using steganography algorithm," Journal of Computer Science, vol.
Keywords: Steganography, Adaptive Minimum Error Least Significant Bit Replacement, brightness, contrast, crop
Although it's been months since DeepSound received updates, it still achieves all the necessary audio steganography features.
Before we dive into how malware authors are leveraging this technique, let's take a deeper look at the advantages and disadvantages of steganography.
To participate, students will need to have a base-level understanding of cyber security tools, such as, traditional log and file analysis, rootkit detection and analysis, botnet detection and analysis, live system forensics, steganography, and file carving.