Security of the digital information is becoming primary concern prior to transmitting the information itself via some media. Information security means protecting information and information systems from unauthorized access, use, disclosure, disruption, modification or destruction. In this proposed method, the carrier file and the secret message are taken into audio format and a pattern matchin...

According to the analysis of the effect of the texture complexity on steganalysis, we propose a data hiding algorithm based on texture complexity and difference pixel value. Firstly, the image is decomposed into blocks, after which the texture complexity of each block is calculated and blocks with high complexity are selected. Then the different pixel values on two directions of the selected bl...

This paper investigates the detection of information hidden by the Least Significant Bit (LSB) matching scheme. In a theoretical context of known image media parameters, two important results are presented. First, the use of hypothesis testing theory allows us to design the Most Powerful (MP) test. Second, a study of the MP test gives us the opportunity to analytically calculate its statistical...

Color interpolation is a form of upsampling, which introduces constraints on the relationship between neighboring pixels in a color image. These constraints can be utilized to substantially boost the accuracy of steganography detectors. In this paper, we introduce a rich model formed by 3D co-occurrences of color noise residuals split according to the structure of the Bayer color filter array t...

This paper addresses the problem of detecting the presence of data hidden in digital media by the Least Significant Bit (LSB) matching scheme. In a theoretical context of known digital medium parameters, two important results are presented. First, the use of hypothesis testing theory allows the design of the Most Powerful (MP) test. Second, a study of the MP test provides the opportunity to ana...

In this paper, we present a scheme based on feature mining and neuro-fuzzy inference system for detecting LSB matching steganography in grayscale images, which is a very challenging problem in steganalysis. Four types of features are proposed, and a Dynamic Evolving Neural Fuzzy Inference System (DENFIS) based feature selection is proposed, as well as the use of Support Vector Machine Recursive...

A new LSB matching steganalysis scheme for gray images is proposed in this paper. This method excavates the relevance between pixels in the LSB matching stego image from the co-occurrence matrix. This method can acquire high accuracy near to 100% at high embedding rate. In order to increase the accuracy at low embedding rate, we strengthen the differences between the cover image and the stego i...

In the paper, we advocate a new approach to blind steganalysis based on classifying higher-order statistical features derived from an estimation of the stego signal in the wavelet domain. The proposed approach is flexible and enables reliable detection of presence of stego messages embedded using a wide range of steganographic methods that include ±1 embedding (LSB matching), LSB embedding, Sto...

A 6-bit weighted-current-sink video digital-to-analog converter (DAC) with 10-90 percent rise/fall time of 4 ns, integrated with a double-metal 3pm CMOS technology, is described. Current-source matching, glitch reduction, and differential switch driving aspects are considered. A new circuit solution and a nonconventional layout technique yield a high conversion rate with a standard CMOS technol...