Thesis Proposal: Toward a Theory of Steganography.

It provides mathematical methods for converting data into an unreadable form. Steganography is a technique by which the secret digital data is sent from side to side by hiding it in an innocent-looking digital cover, so the existence of hidden data is concealed. Combining Cryptography and Steganography provides two-layers protection.

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New Methods to Improve the Pixel Domain Steganography, Steganalysis, and Simplify the Assessment of Steganalysis Tools. By Omed Saleem Khalind. The thesis is submitted in partial fulfilment of the requirements for the award of the degree of Doctor of Philosophy of the University of Portsmouth Supervised By Dr. Benjamin Aziz.

Steganography is the hiding of information within a more obvious kind of communication. Although not widely used, digital steganography involves the hiding of data inside a sound or image file.

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This paper presents a survey of popular image steganography techniques and also discusses their advantages, limitations and effectiveness in comparision. The basics of image steganography, factors for evaluating an image steganography are covered in the paper. Image steganography techniques can be classified according to various criteria.

Digital Watermarking. Melinos Averkiou. 1. Introduction. Digital watermarking is the act of hiding a message related to a digital signal (i.e. an image, song, video) within the signal itseclosely related to lf. It is a concept steganography, in that they both hide a message inside a digital signal. However, what separates them is their goal.

Pure Steganography is a Steganography system that doesn’t require prior exchange of some secret information before sending message; therefore, no information is required to start the communication process: the security of the system thus depends entirely on its secrecy .The pure Steganography can be defined as the quadruple (C, M, D, and E.

The work presented in this thesis is directed at steganography detection in HTML les. The most common HTML steganography methods from the literature are considered in the thesis: (i) Attribute Permutation Steganography (APS) (ii) Invisible characters Steganography (ICS) and (iii) Tag Letters Case Switching Steganography (TLCSS).

After the introduction on steganography, steganalysis and the aims of the dissertation, the next chapter provides details on the history of steganography, describes in more depth these two terms and discusses about their different types and scenarios. Chapter 3 gives a brief introduction to.

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It has been thought that the ability of sending a secret message through a network nowadays becomes more complicated and complex. One of the reasons why do we need tools to hide message is to keep conceal a secret message from being accessed by unauthorized and non-respective person. A technique such as steganography is one example method to send a secret message.