Testing methods for the efficiency of modern steganography solutions for mobile platforms

Fehér²,

et al. 2022

IJERPH

The purpose of this research was to analyze how different effects of the COVID pandemic, expressed through pandemic accentuated occupational stress, perceived job insecurity, occupational safety and health perception and perceived organizational effectiveness, may impact turnover intentions of the personnel in the hospitality industry. Our research team designed an online questionnaire which was analyzed with network analysis to depict the relationship between factors, and, then, a confirmatory factor analysis was employed to confirm the distribution of the items to the envisaged five factors. Based on a sample of 324 randomized Romanian hospitality industry staff, the results of our cross-sectional study revealed that occupational safety and health perception, perceived organizational effectiveness and perceived job insecurity in the pandemic accentuated occupational stress to indirectly and significantly impact hospitality industry staff turnover intentions (TI). The results indicated that, while the total effect of PAOS on TI was significant, the direct effect was still significant, while all three mediators remained significant predictors. Overall, mediators partially mediated the relationship between PAOS and TI, indicating that employees with low scores on occupational safety and health perception (OSHP), and perceived organizational effectiveness (POE) and high scores on perceived job insecurity (PJI) were more likely to have higher levels of TI turnover intentions.

Section: Measurementmentioning

confidence: 99%

A Parallel Mediation Analysis on the Effects of Pandemic Accentuated Occupational Stress on Hospitality Industry Staff Turnover Intentions in COVID-19 Context

Fehér²,

et al. 2022

IJERPH

“…As mentioned in [30], secret media are decomposed into HH, LL, LH, and HL to set the following coefficient values.…”

Section: Transform Domainmentioning

confidence: 99%

“…Any truncation in this coefficient may destroy the embedded information according to Arunkumar et al [31]. Xiong et al [30] adopt an integer wavelet transform to overcome the floating-point problem, which can map an integer input to integer output to prevent the floating-point of wavelet filters. The IWT LL sub-band is similar to the original image to the DWT LL [32][33] [34].…”

Section: Transform Domainmentioning

confidence: 99%

A Survey on Image Data Hiding Techniques**

Mahmoud

Ghoniemy²,

Ghali³

2022

IJICIS

Due to the observed growth in recent years of digital image communication, computer technologies, and image processing techniques image security has been an essential demand due to the different image attacks. Image security approaches are classified into cryptography and data hiding techniques, including digital watermarking and steganography.This study paper reviews existing picture data hiding techniques, their benefits and drawbacks, and future research directions. In addition to the survey, we included a brief explanation of several geometric and image processing attacks that impair picture transmission. General multimedia security ideas, primary requirements, and recent applications We addressed various approaches and their characteristics, types, requirements, and working mechanisms. We classify the techniques based on different domains. General concepts of data hiding approaches, their characteristics, recent applications used in, also recent research work for proposed techniques is discussed in the following sections, finally, a comparison between different methodologies has been presented in a table.

“…He has proposed his idea for embedding data in emoticons or using lingoes in SMS than the recipient can extract the hidden information. In [19] we find the information regarding different steganographic techniques and gives performance metrics for mobile image steganography. In [20], creators have built up an android application through which we can shroud information behind the picture, and we can share an apk document through WhatsApp.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of Novel Algorithm for Data Hiding on Mobile Application

Kumar¹,

Yadav²

2021

IJACSA

We can easily observe that in the current era of communication, Computers, mobile phones, and the Internet are widely used mediums. In such an environment, information security is an important issue. The most common techniques used for information security are Cryptography and Steganography. Many research works have been done on image Steganography. These images have different kinds of formats like BMP, GIF, and PNG. Several compression methods are available which applied to the images having the format BMP, GIF, and PNG is comparatively less effective than the JPEG image. JPEG compression steganography method is complex to implement even then some algorithms have been developed for it. They provide single-level or two-level information securities. This paper presents a method in which is the combination of Cryptography and Steganography is used over android mobile phones. Here we are performing encryption two times on data to be hidden and then that encrypted data hidden both in text and image. We are using the Advanced Encryption Standard (AES) algorithm to hide text within a text, Discrete Cosine transform (DCT) for image steganography, and Data Encryption Standard (DES) for encryption of text. This paper gives the idea of threelevel information security over the android environment.