Information Hiding: Steganography and Watermarking-Attacks and Countermeasures: Steganography and Watermarking : Attacks and Countermeasures
Springer Science & Business Media, 2001 - Business & Economics - 137 pages
Information Hiding: Steganography and Watermarking - Attacks and Countermeasures deals with information hiding. With the proliferation of multimedia on the Internet, information hiding addresses two areas of concern: privacy of information from surveillance (steganography) and protection of intellectual property (digital watermarking).
Steganography (literally, covered writing) explores methods to hide the existence of hidden messages. These methods include invisible ink, microdot, digital signature, covert channel, and spread spectrum communication. Digital watermarks represent a commercial application of steganography. Watermarks can be used to track the copyright and ownership of electronic media.
In this volume, the authors focus on techniques for hiding information in digital media. They analyze the hiding techniques to uncover their limitations. These limitations are employed to devise attacks against hidden information. The goal of these attacks is to expose the existence of a secret message or render a digital watermark unusable. In assessing these attacks, countermeasures are developed to assist in protecting digital watermarking systems. Understanding the limitations of the current methods will lead us to build more robust methods that can survive various manipulation and attacks.
The more information that is placed in the public's reach on the Internet, the more owners of such information need to protect themselves from theft and false representation. Systems to analyze techniques for uncovering hidden information and recover seemingly destroyed information will be useful to law enforcement authorities in computer forensics and digital traffic analysis.
Information Hiding: Steganography and Watermarking - Attacks and Countermeasures presents the authors' research contributions in three fundamental areas with respect to image-based steganography and watermarking: analysis of data hiding techniques, attacks against hidden information, and countermeasures to attacks against digital watermarks.
Information Hiding: Steganography and Watermarking &endash; Attacks and Countermeasures is suitable for a secondary text in a graduate level course, and as a reference for researchers and practitioners in industry.
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ATTACKS AGAINST HIDDEN DATA
Seeing data hidden in an image
Jpeg image left andJsteg image right
Histograms of Jpeg Coefficients
Probability of Embedded Data
Difference between the graph in Figure 34 and the left graph in Figure 29
Impact of an attack using StirMark
Affine in variance of area ratios
Images used for recognition
Matching results for the image in Figure 50
Affine invariants for Figure 50b
Additional images to illustrate incorrect matches
Correlation between Figure 55a and Figure 50
Refining image size and aspect
Illustration of an attack on a watermark using StirMark
Original image with an embedded watermark
COUNTERMEASURES TO ATTACKS
Example of strengthening a maskbased watermark
Candidate feature points based on edges
Examples of similarity functions for three local neighborhoods
Selected unique feature points for 12 14 and 18 resolutions
Identifying likely feature points
Selected feature points for full 12 and 14 resolution
Examples of Affine Transformations
Recovery of an image using Normal Displacement
Maskbased watermark recovery
Recovery of a commercial watermark
Further recovery of a commercial watermark
Application of normal displacement for recovery
Hiding Data in Network Traffic
Glossary of Methods to Distort Stegolmages
Other editions - View all
Information Hiding: Steganography and Watermarking-Attacks and ...
Neil Johnson,Zoran Duric,Sushil Jajodia
No preview available - 2011
24-bit images 8-bit color 8-bit grayscale affine parameters affine transform areas ASCII asymmetric byte carrier Chapter coefficients computed computer forensics countermeasures cover image cropping cryptography data hiding despeckle detection digital media digital watermarks disabling distorted image distortion attacks dithering edges embed embedded data embedded information embedded message embedded watermark encryption EzStego feature points files fingerprint graph in Figure grayscale images headers hidden message Hide and Seek hide information hiding techniques identify illustrates Image Conversions image database image gradient image in Figure image points image processing image processing techniques image recognition information hiding Internet Invisible JPEG lower bits manipulation matches method Neil F normal displacement field null cipher original image Packet parameters Picturemarc pixels Print & Scan recovered image recovering a watermark recovery Renoir resampling resizing robust S-Tools similar steganalysis steganography and watermarking steganography tools Steganos Stego stego-images StirMark stronger watermarks Suresign SysCop watermarked image watermarking tools
Information Hiding: 5th International Workshop, IH 2002 ..., Volume 5
Fabien A. P. Petitcolas
No preview available - 2003
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Digital Audio Watermarking Techniques and Technologies: Applications and ...
No preview available - 2007