Quantum noise-driven randomness for password generation: Analysis via simulation and FakeProvider Rounak Biswas, Utpal Roy International Journal of Quantum Information, 2025 This study introduces a quantum-enhanced approach to password generation using two distinct quantum randomness sources: classical measurement of superposition states and depolarizing noise. These sources overcome the shortcomings of classical pseudo-random number generators. Notably, this work pioneers integrating depolarizing noise as a controlled entropy source alongside superposition, offering a novel alternative to conventional quantum randomness methods. Quantum circuits, implemented via Qiskit, were executed on AerSimulator (idealized simulation) and FakeProvider (hardware-inspired noise model) backends, producing binary sequences through XOR and Concatenation modes. These sequences were converted into passwords of lengths 16 and 25 across datasets of 10K, 100K, and 500K, using Binary Character Mapping and Randomized reseeding methods. Binary entropy’s randomness was verified by the NIST Statistical Test Suite, with all p-values above 0.01. Generated password strength was evaluated through Clustering (Levenshtein distance), Entropy (3.84 to 4.40 bits per character), Hamming Distance, Uniqueness (100 percent), and ZXCVBN scoring (Score 4). Results from both backend-based password datasets were nearly identical, confirming simulated and hardware-based quantum randomness as a reliable and scalable alternative to systems. This work positions quantum noise-driven password generation as a robust cryptographic tool with the potential for real-world security applications.This research investigates the effectiveness of quantum noise, derived from superposition states and depolarizing channels, as a high-entropy source for generating cryptographically secure passwords. Quantum circuits implemented on the AerSimulator and FakeProvider backends produce random binary sequences, which are processed through chaotic mixing and rejection sampling to ensure uniform randomness. These sequences are rigorously evaluated using Shannon entropy, min-entropy and the NIST statistical test suite, alongside password strength assessments via tools like ZXCVBN. Results indicate exceptional randomness, with an average Shannon entropy of 3.84 ± 0.4 bits per character and 100% uniqueness across datasets of 20,000 passwords. The FakeProvider backend slightly outperforms the AerSimulator, achieving full compliance with NIST tests, while both produce passwords with top-tier strength scores (ZXCVBN Score 4). Comparative analyses demonstrate that quantum noise surpasses classical pseudo-random number generators in entropy density and resistance to brute-force and dictionary-based attacks. This study validates quantum noise as a superior entropy source, offering significant potential for enhancing password security in cryptographic applications and paving the way for quantum-enhanced cybersecurity solutions.
Efficacy of Keystroke Dynamics-based User Authentication in the Face of Language Complexity Sandip Dutta, Utpal Roy, Soumen Roy Recent Advances in Computer Science and Communications, 2025 Introduction: This study investigates the impact of language complexity on Keystroke Dynamics (KD) and its implications for accurate KD-based user authentication system performance in smartphones. Methods: This research meticulously analyzes keystroke patterns using 160 volunteers, including both frequently typed and infrequently typed texts. Our analysis of 12 anomaly detection algorithms reveals that a simple text-based KD system consistently outperforms its complex counterpart with superior Equal Error Rates (EERs). Results: As a result, the Scaled Manhattan anomaly detector achieves an EER of 2.48% for simple text and an improvement over 2.98% for complex text. The incorporation of soft biometrics further enhances algorithmic performance, emphasizing strategies to build resilience into KD-based user authentication systems. Conclusion: Throughout this study, the importance of text complexity is emphasized, and innovative pathways are introduced to strengthen KD-based user authentication paradigms.
Protection of kids from internet threats: A machine learning approach for classification of age-group based on typing pattern Lecture Notes in Engineering and Computer Science, 2018
Color based image segmentation Anandarup Roy, Swapan Kumar Parui, Amitav Paul, Utpal Roy Proceedings 11th International Conference on Information Technology Icit 2008, 2008
Coinciding the features of emerging adulthood with the traits of the second demographic transition: Prominent spatial patterns in developed countries I Maity, U Roy, CMN Barry Social Sciences & Humanities Open 13, 102674 , 2026 2026
Health Affairs-A Matter of Concern of Emerging Adulthood: Research Trends, Themes, and Typology I Maity, U Roy, S Karak Journal of Adult Development, 1-16 , 2026 2026
Multifaceted Research Trends on Parenting in Emerging Adulthood: A Bibliometric Review I Maity, U Roy Emerging Adulthood, 21676968251395340 , 2026 2026
Learning Phase-Flip Noise Using Balanced Datasets and Hybrid Models for Noise Classification in Quantum Circuits R Biswas, B Basu, U Roy IEEE Access 13, 207257-207276 , 2025 2025 Citations: 1
Efficacy of Keystroke Dynamics-based User Authentication in the Face of Language Complexity S Dutta, U Roy, S Roy Recent Advances in Computer Science and Communications 18 (6), E120724231940 , 2025 2025 Citations: 1
Importance–performance analysis in assessing LoS (Level of Service): A study on the ferry service of Kolkata-Howrah twin city S Pramanick, U Roy Case Studies on Transport Policy 21, 101524 , 2025 2025 Citations: 1
A novel approach to identify parkinson’s disease and other similar neural stress by analysing keystrokes on modern active devices with ensemble classification S Roy, U Roy, D Sinha, RK Pal Multimedia Tools and Applications 84 (29), 36163-36202 , 2025 2025 Citations: 1
A predictive contrivance for recognising traits in keystroke dynamics S Roy, U Roy, D Sinha, RK Pal Advances in Computational Intelligence 5 (2), 3 , 2025 2025
Multilingual ASR Model for Kudmali Voice Recognition C Senapati, U Roy International Journal of Computer Applications 186 (64), 27-35 , 2025 2025 Citations: 1
Quantum noise-driven randomness for password generation: Analysis via simulation and FakeProvider R Biswas, U Roy International Journal of Quantum Information 23 (7), 2550025 , 2025 2025
Refining the Impact of Quantum Noise: From Chaotic Effects to Contribution in Randomness Generation R Biswas, U Roy 2024 Citations: 1
Unsupervised Feature Selection for High-Dimensional Data Using Clustering and Multi-Objective Optimization S Laha, U Roy International Conference on Biologically Inspired Techniques in Many … , 2024 2024
Advanced Keystroke Dynamics for Secure Smartphone Authentication S Dutta, S Roy, U Roy International Conference on Biologically Inspired Techniques in Many … , 2024 2024 Citations: 1
A low resource multi-lingual simultaneous script identification and text recognition model J Mukherjee, U Roy SN Computer Science 5 (6), 740 , 2024 2024 Citations: 5
Advancing smartphone sensor-based keystroke dynamics for implicit and active authentication: Addressing challenges and enhancing usability control S Roy, U Roy, D Sinha, RK Pal International Symposium on Applied Computing for Software and Smart Systems … , 2024 2024 Citations: 2
Space–time clusters and co-occurrence of Plasmodium vivax and Plasmodium falciparum malaria in West Bengal, India M Maiti, U Roy Malaria Journal 23 (1), 189 , 2024 2024 Citations: 3
Spatial environment and open defecation: in pursuit of social valuation of sanitation ecosystem services S Chakraborty, J Novotný, J Das, PP Patel, I Maity, U Roy The Professional Geographer 76 (3), 303-317 , 2024 2024 Citations: 4
Mimicking photon source measurement with quantum digital twin: A framework for high-quality randomness R Biswas, U Roy International Journal of Information Technology, Research and Applications 3 … , 2024 2024 Citations: 1
Exploring the Limits of Classical Random Number Generation and Unveiling Quantum Alternatives R Biswas, DR Talukdar, U Roy International Conference on Network Security and Blockchain Technology, 35-45 , 2024 2024
Learning from imbalanced data in healthcare: State-of-the-art and research challenges D Roy, A Roy, U Roy Computational Intelligence in Healthcare Informatics, 19-32 , 2024 2024 Citations: 23
MOST CITED SCHOLAR PUBLICATIONS
PANDA Phase One: PANDA collaboration G Barucca, F Davì, G Lancioni, P Mengucci, L Montalto, PP Natali, ... The European physical journal A 57 (6), 184 , 2021 2021 Citations: 126
Ecotoxicological Assessment of Tannery Effluent Using Guppy Fish ( Poecilia reticulata ) as an Experimental Model: A Biomarker Study A Aich, AR Goswami, US Roy, SK Mukhopadhyay Journal of Toxicology and Environmental Health, Part A 78 (4), 278-286 , 2015 2015 Citations: 81
In pursuit of sustainability–Spatio-temporal pathways of urban growth patterns in the world's largest megacities S Chakraborty, H Dadashpoor, J Novotný, I Maity, A Follmann, PP Patel, ... Cities 131, 103919 , 2022 2022 Citations: 74
Feasibility studies of time-like proton electromagnetic form factors at ANDA at FAIR PANDA Collaboration, B Singh, W Erni, B Krusche, M Steinacher, ... The European Physical Journal A 52 (10), 325 , 2016 2016 Citations: 64
Feasibility study for the measurement of transition distribution amplitudes at in B Singh, W Erni, B Krusche, M Steinacher, N Walford, H Liu, Z Liu, B Liu, ... Physical Review D 95 (3), 032003 , 2017 2017 Citations: 63
Precision resonance energy scans with the PANDA experiment at FAIR: Sensitivity study for width and line shape measurements of the X (3872) Panda Collaboration, G Barucca, F Davı, G Lancioni, P Mengucci, ... The European Physical Journal A 55 (3), 42 , 2019 2019 Citations: 59
A systematic literature review on latest keystroke dynamics based models S Roy, J Pradhan, A Kumar, DRD Adhikary, U Roy, D Sinha, RK Pal IEEE Access 10, 92192-92236 , 2022 2022 Citations: 57
Study on avifaunal diversity from three different regions of North Bengal, India SK Mukhopadhyay Asian Journal of Conservation Biology , 2012 2012 Citations: 57
Coastal dilemma: climate change, public assistance and population displacement S Dasgupta, D Wheeler, S Bandyopadhyay, S Ghosh, U Roy World Development 150, 105707 , 2022 2022 Citations: 54
Coalition formation for cooperative service-based message sharing in vehicular ad hoc networks B Das, S Misra, U Roy IEEE Transactions on Parallel and Distributed Systems 27 (1), 144-156 , 2015 2015 Citations: 51
Study of doubly strange systems using stored antiprotons B Singh, W Erni, B Krusche, M Steinacher, N Walford, B Liu, H Liu, Z Liu, ... Nuclear Physics A 954, 323-340 , 2016 2016 Citations: 48
A novel approach to skew detection and character segmentation for handwritten Bangla words A Roy, TK Bhowmik, SK Parui, U Roy Digital Image Computing: Techniques and Applications (DICTA'05), 30-30 , 2005 2005 Citations: 46
Changes in densities of waterbird species in Santragachi Lake, India: potential effects on limnochemical variables US Roy Zoological… , 2011 2011 Citations: 43
Spatial analysis and modelling for primary healthcare site selection in Midnapore town, West Bengal B Dutta, M Das, U Roy, S Das, S Rath GeoJournal 87 (6), 4807-4836 , 2022 2022 Citations: 41
Characterization of brinjal (Solanum melongena L.) germplasm P Hazra, A Rout, U Roy, S Nath, T Roy, R Dutta, S Acharya, AK Mondal Veg. Sci 30 (2), 145-149 , 2003 2003 Citations: 41
Butterfly diversity and abundance with reference to habitat heterogeneity in and around Neora Valley National Park, West Bengal, India US Roy, M Mukherjee, SK Mukhopadhyay Our Nature 10 (1), 53-60 , 2012 2012 Citations: 39
Design and optimization of parity generator and parity checker based on quantum-dot cellular automata S Santra, U Roy World Academy of Science, Engineering and Technology, International Journal … , 2014 2014 Citations: 38
Design and implementation of quantum cellular automata based novel adder circuits S Santra, U Roy International Journal of Computer, Electrical, Automation, Control and … , 2014 2014 Citations: 38
Imbalanced ensemble learning in determining Parkinson’s disease using Keystroke dynamics S Roy, U Roy, D Sinha, RK Pal Expert Systems with Applications 217, 119522 , 2023 2023 Citations: 37
SWGMM: a semi-wrapped Gaussian mixture model for clustering of circular–linear data A Roy, SK Parui, U Roy Pattern Analysis and Applications 19 (3), 631-645 , 2016 2016 Citations: 36
