an article by Lingyun Xiang Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, China; Changsha University of Science and Technology, Hunan Province, China) and Xiao Yang, Jiahe Zhang and Weizheng Wang (Changsha University of Science and Technology, Hunan Province, China) published in International Journal of Computational Science and Engineering Volume 19 Number 1 (May 2019)
Abstract
Text steganography is a widely used technique to protect communication privacy yet it suffers from a variety challenges.
One of these challenge is synonym substitution-based method, which may change the statistical characteristics of the content. For example, the word frequency may be changed, which may be easily detected by steganalysis. In order to overcome this disadvantage, this paper proposes a synonym substitution-based steganographic method taking the word frequency into account.
This method dynamically divides the synonyms appearing in the text into groups, and substitutes some synonyms to alter the positions of the relative low frequency synonyms in each group to encode the secret information. By maintaining the number of relative low frequency synonyms across the substitutions, it preserves some characteristics of the synonyms with various frequencies in the stego and the original cover texts.
The experimental results illustrate that the proposed method can effectively resist the attack from the detection using relative frequency analysis of synonyms.
Hazel’s comment:
This is one of those articles which I find fascinating even when I don’t understand entirely what it is about!!
Showing posts with label steganography. Show all posts
Showing posts with label steganography. Show all posts
Thursday, 23 May 2019
Saturday, 3 February 2018
Increased level of security using DNA steganography
an article by P. Vijayakumar (VIT University, Chennai, India), V. Vijayalakshmi (Pondicherry Engineering College, India) and R. Rajashree (GKM College of Engineering and Technology, Chennai, India) published in International Journal of Advanced Intelligence Paradigms Volume 10 Number 1/2 (2018)
Abstract
Security has become one of the important fields of concern when the scenario of information transport is viewed. Cryptology is a traditional technique that hides the message by encoding it.
Nevertheless, now it is not only demanded that the data that is being transmitted is encoded, but the very existence of knowledge of data transmission should be concealed. Steganography is thus a technique where the data are not only encoded, but hidden within a carrier. This therefore provides a two-level security.
The proposed paper describes a highly secured steganography technique using DNA sequence. The report suggests a technique of hiding an image in an image using DNA sequence.
I can’t imagine how it can be done but I can see the value of hidden DNA used to secure important information.
Abstract
Security has become one of the important fields of concern when the scenario of information transport is viewed. Cryptology is a traditional technique that hides the message by encoding it.
Nevertheless, now it is not only demanded that the data that is being transmitted is encoded, but the very existence of knowledge of data transmission should be concealed. Steganography is thus a technique where the data are not only encoded, but hidden within a carrier. This therefore provides a two-level security.
The proposed paper describes a highly secured steganography technique using DNA sequence. The report suggests a technique of hiding an image in an image using DNA sequence.
I can’t imagine how it can be done but I can see the value of hidden DNA used to secure important information.
Tuesday, 14 August 2012
An innovative information hiding technique utilizing cumulative peak histogram regions
an article by Faruq A. Al-Omari (Yarmouk University, Irbid, Jordan), Osama D. Al-Khaleel and Ghassan A. Rayyashi, (Jordan University of Science and Technology, Irbid, Jordan) and Sameh H. Ghwanmeh, (WISE University, Amman, Jordan) published in Journal of Systems and Information Technology Volume 14 Issue 3 (2012)
Abstract
Purpose
The purpose of this paper is to develop an innovative information hiding algorithm.
Design/methodology/approach
The proposed algorithm is based on image histogram statistics. Cumulative-peak histogram regions are utilized to hide multiple bits of the secret message by performing histogram bin substitution. The embedding capacity, otherwise known as payload, and peak signal to noise ratio (PSNR), as well as security, are the main metrics used to evaluate the performance of the proposed algorithm.
Findings
According to the obtained results, the proposed algorithm shows high embedding capacity and security at comparable PSNR compared with existing hiding information techniques.
Originality/value
The simplicity, security, random distribution of embedding pixels, and on-demand high capacity are the key advantages of the proposed approach.
Abstract
Purpose
The purpose of this paper is to develop an innovative information hiding algorithm.
Design/methodology/approach
The proposed algorithm is based on image histogram statistics. Cumulative-peak histogram regions are utilized to hide multiple bits of the secret message by performing histogram bin substitution. The embedding capacity, otherwise known as payload, and peak signal to noise ratio (PSNR), as well as security, are the main metrics used to evaluate the performance of the proposed algorithm.
Findings
According to the obtained results, the proposed algorithm shows high embedding capacity and security at comparable PSNR compared with existing hiding information techniques.
Originality/value
The simplicity, security, random distribution of embedding pixels, and on-demand high capacity are the key advantages of the proposed approach.
Saturday, 28 August 2010
Comprehensive linguistic steganography survey
an article by Abdelrahman Desoky published in International Journal of Information and Computer Security Volume 4 Number 2 (2010)
Abstract
Contemporary steganography approaches suffer from many serious deficiencies; generally, they attempt to hide data as detectable and suspicious noise in a cover that is assumed to look innocent. In addition, steganography approaches found in literature have focused on how to conceal a message and not on how to camouflage its transmittal. This paper presents a comprehensive survey that focuses mainly on, but not limited to, computational linguistics aspects of steganography and it is organised as follows:
There are several articles about steganography in the “stuff” that I’ve been reading recently. And, yes, I did feel a bit uneducated that I had to use Google define: to find out what on earth the fuss is all about. This is the definition I thought best fitted what this article is talking about:
Abstract
Contemporary steganography approaches suffer from many serious deficiencies; generally, they attempt to hide data as detectable and suspicious noise in a cover that is assumed to look innocent. In addition, steganography approaches found in literature have focused on how to conceal a message and not on how to camouflage its transmittal. This paper presents a comprehensive survey that focuses mainly on, but not limited to, computational linguistics aspects of steganography and it is organised as follows:
- Section 1 concisely details the fundamental concepts related to steganography, summarises the current state of the research, and highlights the technical concerns. Then, it briefly describes the modern steganography, namely noiseless steganography (Nostega).
- Section 2 discusses the contemporary steganography and Nostega paradigm (the modern steganography).
- Section 3 demonstrates Nostega-based methodologies.
- Section 4 presents a brief overview of steganalysis.
- Section 5 concludes the survey and highlights directions for future research.
There are several articles about steganography in the “stuff” that I’ve been reading recently. And, yes, I did feel a bit uneducated that I had to use Google define: to find out what on earth the fuss is all about. This is the definition I thought best fitted what this article is talking about:
“Steganography is the technique whereby a message, possibly encrypted, is concealed within another medium. In the world of computing, this means that a seemingly innocuous graphic or sound file (say) can conceal a message which could be used to disguise corporate espionage. (cityofseattle.net/informationsecurity/glossary)”
So, in the computer age, steganography, which was the art of hiding your real message inside a seemingly innocuous one, is now something to be feared or, at the very least, guarded against!
On a more prosaic front I’ve seen messages on Facebook from some of my teenage friends which appear to be innocent – but they carry hidden messages to those “in the know”. Do they know they are using steganography?
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