Nilima S.

Work place: School of Computer Science, Department of Virtualization, University of Petroleum & Energy Studies, Dehradun, India.



Research Interests: Program Analysis and Transformation, Comparative Programming Language Analysis, Analysis of Algorithms


Dr. Nilima S. working as Assistant Professor (Selection Grade) at University of Petroleum & Energy Studies, Dehradun. She has 14 years of teaching experience. Her research interest areas are signal processing, EEG, cryptography and statistical analysis.

Author Articles
Randamization Technique for Desiging of Substitution Box in Data Encryption Standard Algorithm

By Nilima S. Alind Nitin Aror

DOI:, Pub. Date: 8 Jul. 2019

A new approach for the generation of randomized substitution box (S-box) based on the concept of a redesign of S-box with fewer numbers of input bits processed at a time as compared to existing S-box in Data Encryption Standard (DES) Algorithm. The results of experimentation prove that proposed randomized approach also generate promising results, which can be particularly useful for devices with less processing power. Proposed approach retains the diffusion and confusion property of a good cryptosystem algorithm.

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