Cryptographic Substitution-boxes are source of nonlinearity in modern block encryption systems. The robustness and confusion imparted through these systems heavily rely on the strength of their S-boxes. This brings new challenges to design cryptographically potent S-boxes to develop strong...

In the recent past, a new statistically efficient digital image watermarking scheme based on chaotic map was proposed. The authors of this watermarking scheme claimed under study that their scheme is efficient, secure, and highly robust against various attacks. However, the security analysis of...

Chaos systems consistently play an active role in today’s image encryption techniques. The ergodicity of chaos systems makes them suitable for image encryption. A number of image encryption algorithms based on chaotic systems have been proposed. In this paper, a new color image encryption...

Purpose: The paper answers the following questions: (1) Do firms located in rural areas experience greater problems in accessing financial services? (2) If this is the case, what can these firms do to improve their access to finance? Design/methodology/approach: This paper uses the pooled...

Purpose: This paper aims to document the relationship between advertising expenditures and analyst coverage in a sample of Indian firms during the period between 2000 and 2019. Design/methodology/approach: In order to test the...

Purpose: The aim of this paper is to document the impact of dividend policies on the downside risk in stock prices. Design/methodology/approach: The authors use the data for non-financial firms from the MENA region to test our arguments by estimating the pooled OLS regressions. The data cover...

Purpose: This paper documents the effect of different types of information on the value of financial analysts. Design/methodology/approach: The authors use the pooled OLS regression and the data of nonfinancial firms from...

In this paper a modified function for wavelet-based denoising scheme is proposed and tested for speaker independent noisy Hindi digits recognition using Mel-Frequency Cepstral Coefficients (MFCC) features. Recognition performance achieved by using the proposed scheme is found to be superior to...

Do different institutional investors possess different sets of information? The extent to which different institutional investors offer different information to individual/naive investors remains an interesting question in information poor emerging stock markets. Using a comprehensive data of...