نتایج جستجو برای: steganography
تعداد نتایج: 3630 فیلتر نتایج به سال:
Steganography, an information-hiding technique, is that embedding secret information into a cover-media to generate a meaningful stego-media. This paper proposes a novel image steganography scheme using 3D-Sudoku. In this paper, a cyclically moving algorithm is used to construct a 3D-Sudoku. The data-embedding phase is that the pixels of the cover-image as the coordinate of 3D-Sudoku are modifi...
Steganography is the art of covered, or hidden, writing. The purpose of steganography is covert communication to hide the existence of a message from a third party. This proposed system deals with implementing security-using Steganography. In this technology, the end user identifies an image which is going to act as the carrier of data. The data file is encrypted and authenticated. This message...
Steganography refers to the technique of hiding secret messages into media such as text, audio, image and video without any suspicion, while steganalysis is the art and science of detection of the presence of steganography. Steganography can be used for the benefit of the mankind to serve us as well as by terrorists and criminals for malicious purposes. Both steganography and steganalysis have ...
HUGO is the content-based adaptive steganography method for spatial images which can approximately preserve the joint statistic of differences between up to four neighboring pixels in four different directions. But the steganalysis method based on the higher order local model can fail HUGO. In view of the above problem, an improved steganography is proposed. Firstly, by analyzing the higher ord...
Steganography is the art of inconspicuously hiding data within data.Steganograhy goal in general is to hide data well enough so that unintended recipients do not suspect the Steganographic medium of containing hidden data. As privacy concern to develop along with the digital communication domain, steganography will undoubtedly play a growing role in the society. For this reason, it is important...
Images, especially colored JPEG images, are increasingly being used as cover by many steganography techniques. Steganalysis detects the presence of message embedded by steganography techniques. Many authors have given different steganalysis techniques which differ mainly on the feature sets being used. In this paper we are comparing feature sets of six of these steganalysis techniques for multi...
The recent approach of a model-based framework for steganography fruitfully contributes to the discussion on the security of steganography. In addition, the first proposal for an embedding algorithm constructed under the model-based paradigm reached remarkable performance in terms of capacity and security. In this paper, we review the emerging of model-based steganography in the context of dece...
This paper presents a method for improving steganography and enhancing the security using combinatorial Meta-heuristic algorithms. The goal is to achieve an improved PSNR value in order to preserve the image quality in the steganography process. Steganography algorithms, in order to insert message signal information inside the host data, create small changes based on the message signal in the ...
: Steganography is an art and science of writing hidden messages in such a way that no one apart from the intended recipient knows the existence of the message.The maximum number of bits that can be used for LSB audio steganography without causing noticeable perceptual distortion to the host audio signal is 4 LSBs, if 16 bits per sample audio sequences are used.We propose two novel approaches o...
In this paper encryption and steganography algorithms are implemented using JAVATM with android platform to provide the security for real time multimedia messaging service system. Establishing hidden communication for mobile has become an important subject of security. One of the methods to provide security is steganography. Steganography is used to hide secret information inside some carrier. ...
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