Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Steganalysis"”.
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Study of steganalysis methods
… of steganography belongs to the field of steganalysis. Steganalysis is the art and science of detecting embedded message based on visual inspection, statistical analysis or other methods. Steganalysis detection methods can be classified into two categories: specific and general detection. …
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Blind steganalysis using fractal features
… for detecting Steganographic images with blind steganalysis using fractalfeatures has been proposed in this thesis. Two overarching methods were used to constructthe feature vector; first, using a variation of the Differential Box Counting algorithm forlacunarity estimation to extract the …
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Steganalysis Techniques: A Comparative Study
… report presents a comparative study of three steganalysis techniques. We investigated and compared the performances of each technique in the detection of embedding methods considered. Based on the results of our analysis, we provide information as to which specific steganalysis technique needs …
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Novel Directions in Network Steganalysis
… flows to innocuously hide information. Network steganalysis is the study of analysing network traffic and flows to prevent any illicit use of steganography. Using statistical metrics to compare malicious and matching benign flows has been a solid methodological approach in network steganalysis. …
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A study of steganography and steganalysis
… by hiding information in other information. Steganalysis is the study of methods to detect the presence of hidden messages. The Steganography and Steganalysis are very much interdependent. The people in the Steganography domain try to develop stronger methods to hide data in different media. …
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Review of steganalysis of digital images
… multimedia such as text, image, audio and video. Steganalysis is the counterpart of steganography, which wants to identify if there is data hidden inside a digital medium. In this study, some specific steganographic schemes such as HUGO and LSB are studied and the steganalytic schemes developed to …
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Machine learning based digital image forensics and steganalysis
… processing. Therefore, the research on image steganalysis (determining if a given image has secret information hidden inside) and image forensics (determining the origin and authenticity of a given image and revealing the processing history the image has gone through) has become crucial to the …
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Steganography and steganalysis: data hiding in Vorbis audio streams
… ourselves in the world of steganography and steganalysis, centering our efforts in acoustic signals, a branch of steganography and steganalysis which has received much less attention than steganography and steganalysis for images. With this purpose in mind, it’s essential to get first a basic …
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Difference-expansion based reversible data hiding and its steganalysis
… and experimentally evaluated. An effective steganalysis scheme for this DE-based reversible data embedding method was proposed, which used 12-dimensional feature vectors and a Bayes Classifier. The proposed steganalysis scheme steadily achieved a correct classification rate of 99%.
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Adaptive spatial image steganography and steganalysis using perceptual modelling and machine learning
… To counter this kind of technique, image steganalysis is proposed to detect the presence of secret messages.After many years of development, current image steganography uses the adaptive algorithm for embedding the secrets, which automatically finds the complex area in the cover source to …
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Analysis of MHPDM algorithm for data hiding in JPEG images
… There has also been a lot of research in steganalysis of images, which deals with the detection of hidden information in supposedly natural images. The first section of this thesis reviews the steganography algorithms and steganalysis techniques developed in the last few years. It …
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FORMULATION OF DETECTION STRATEGIES IN IMAGES
… using various steganography methods. A new steganalysis strategy is introduced to blindly detect hidden messages that have been embedded in JPEG images using various steganography techniques. The key contribution is the formulation of a multi-domain feature extraction, ranking, and selection …
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Synthetic steganography: Methods for generating and detecting covert channels in generated media
… method that we present and show that existing steganalysis techniques cannot accurately detect the usage of the covert channels. We develop targeted steganalysis techniques which improve detection accuracy and then use the insights gained from those methods to improve the security of the …
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Graph-based decoders and divergence-rate estimators for data-hiding problems
… blind watermark decoding and timing channels steganalysis. The central problem considered, loosely speaking, is that of implementing optimal (or near-optimal) strategies at the receiver, which is typically tasked to perform reliable decoding or detection, depending on the application at hand, …
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Information similarity metrics in information security and forensics
… the chosen security metric or the existence of steganalysis detectors. In other words, this makes it possible to show that a stegosystem with a large similarity metric is inherently insecure, even if it has not yet been broken.
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Image statistical frameworks for digital image forensics
… is evaluated on two forensic applications: 1) steganalysis with emphasis on HUGO (Highly Undetectable Steganography), an advanced steganographic scheme embedding hidden data in a content-adaptive manner locally into some image regions which are difficult for modeling image statics; 2) image …
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Side-information for steganography design and detection
<p>Today, the most secure steganographic schemes for digital images embed secret messages while minimizing a distortion function that describes the local complexity of the content. Distortion functions are heuristically designed to predict the modeling error, or in other words, how difficult it …