Ramakant Kumar

About

Ramakant Kumar is an Assistant Professor at the School of Computer Science at University of Petroleum and Energy Studies, Dehradun. He has obtained his PhD. degree from MNNIT Allahabad, Prayagraj, India. His research area is Cryptography particularly digital Signature, secret sharing and time lock puzzle. He is a life member of the Cryptology Research Society of India.

Employment

• University of Petroleum and Energy Studies Assistant professor
  2025 - Present
• Motilal Nehru National Institute of Technology Research Scholar
  2020 - 2025

Education

Education history is unavailable.

Projects & Funding

Projects & funding information is unavailable.

Publications (11)

• Cryptanalysis of a Lattice-based Multi-signature Scheme
  National Academy Science Letters 2026 DOI: 10.1007/s40009-024-01583-1
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• Privacy-Preserving Image Retrieval Based on Threshold Secret Sharing
  2026 DOI: 10.1007/978-981-95-3671-9_35
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• An efficient essential secret sharing: Application to gray and color images
  Computers and Electrical Engineering 2025 DOI: 10.1016/j.compeleceng.2025.110630
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• Cryptanalysis of a Lattice-Based Blind Ring Signature Scheme
  National Academy Science Letters 2025 DOI: 10.1007/s40009-025-01759-3
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• A Quantum Secure Convertible Ring Signature Scheme Over SIS Problem
  International Journal of Foundations of Computer Science 2025 DOI: 10.1142/S0129054125500315
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• Chained time lock puzzle with small puzzle size
  Information and Computation 2025 DOI: 10.1016/j.ic.2025.105301
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• A lattice-based ring signature scheme with gradual revelation of non-signers
  International Journal of Information Technology Singapore 2025 DOI: 10.1007/s41870-024-02275-1
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• Improved lattice-based multistage secret sharing scheme
  Sadhana Academy Proceedings in Engineering Sciences 2025 DOI: 10.1007/s12046-025-02729-7
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• Cryptanalysis of Lattice-Based Threshold Changeable Multi-secret Sharing Scheme
  Algorithms for Intelligent Systems 2024 DOI: 10.1007/978-981-99-2229-1_10
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• Cryptanalysis of Short and Provable Secure Lattice-Based Signature Scheme
  Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics 2024 DOI: 10.1007/978-3-031-51583-5_5
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