publications

2026

1. ASIACCS

   SCREAM: Secure Channels for Real-time Evaluation of Additive Manufacturing

   Prithwish Basu Roy, Jason Blocklove, Mudit Bhargava, and 6 more authors

   In Proceedings of the ACM Asia Conference on Computer and Communications Security , Bangalore, India, 2026

   Abs

   Additive Manufacturing (AM), also known as 3D printing, offers several advantages, including on-site production, enhanced throughput, and efficient use of raw materials. However, the rise in its usage has also led to an increase in potential threats that aim to disrupt the printing process. These attacks can subtly alter the design (CAD or STL) files or machine instructions (g-code), which can cause significant economic and reputational harm to the victim company. Current detection techniques, based on acoustic, magnetic, and accelerationbased side-channel analysis, have proven to be ineffective. Although power side-channel analysis is more effective than other means, it is expensive and not scalable. This paper proposes a novel detection method, SCREAM, that assumes the user has access to a trusted STL source and an untrusted g-code. SCREAM leverages the pulse trains sent to the motors to reconstruct the executing g-code. To ensure the safe and accurate execution of g-code, a three-level comparison is performed between recovered and untrusted g-code, as well as trusted STL ensuring successful detection of any anomalies present in the executing g-code. Our testing has shown that this method can detect a range of existing attacks on AM, including malicious firmware manipulation, FLAW3D, and Needle in a Haystack.

2023

1. arXiv

   A survey of Digital Manufacturing Hardware and Software Trojans

   Prithwish Basu Roy, Mudit Bhargava, Chia-Yun Chang, and 4 more authors

   arXiv preprint, 2023

   Abs arXiv Bib HTML PDF

   

   Digital manufacturing systems are increasingly vulnerable to hardware and software Trojans that can compromise the integrity, confidentiality, and availability of manufactured products. This comprehensive survey examines the landscape of Trojans in digital manufacturing, analyzing attack vectors, detection methods, and defense mechanisms across the manufacturing lifecycle.

   @article{basuroy2023trojans,
     title = {A survey of Digital Manufacturing Hardware and Software Trojans},
     author = {Basu Roy, Prithwish and Bhargava, Mudit and Chang, Chia-Yun and Hui, Ellen and Gupta, Nikhil and Karri, Ramesh and Pearce, Hammond},
     journal = {arXiv preprint},
     year = {2023},
     url = {https://arxiv.org/abs/2301.10336},
     google_scholar_id = {d1gkVwhDpl0C},
     dimensions = {true},
   }

2021

1. J. Phys.

   Towards development of performance metrics for benchmarking SLAM algorithms

   Mudit Bhargava, Rushad Mehta, Chandan Das Adhikari, and 1 more author

   Journal of Physics: Conference Series, 2021

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   This paper presents a comprehensive approach to developing performance metrics for benchmarking Simultaneous Localization and Mapping (SLAM) algorithms. We propose standardized evaluation criteria that enable fair comparison across different SLAM implementations, addressing key aspects such as accuracy, robustness, and computational efficiency.

   @article{bhargava2021slam,
     title = {Towards development of performance metrics for benchmarking SLAM algorithms},
     author = {Bhargava, Mudit and Mehta, Rushad and Adhikari, Chandan Das and Sivanathan, K.},
     journal = {Journal of Physics: Conference Series},
     volume = {1964},
     number = {6},
     pages = {062115},
     year = {2021},
     publisher = {IOP Publishing},
     doi = {10.1088/1742-6596/1964/6/062115},
     url = {https://iopscience.iop.org/article/10.1088/1742-6596/1964/6/062115},
     google_scholar_id = {u5HHmVD_uO8C},
     dimensions = {true},
   }

2019

1. IEEE-NANO

   Performance Enhancement of MEMS based Piezoelectric Pressure Sensor using Multistep Configuration

   Mudit Bhargava, Alkausil Tamboli, and K. Sivanathan

   In 2019 IEEE 19th International Conference on Nanotechnology (IEEE-NANO) , 2019

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   This paper presents a novel multistep configuration approach for enhancing the performance of MEMS-based piezoelectric pressure sensors. The proposed design demonstrates improved sensitivity and linearity compared to conventional single-step configurations, making it suitable for precision measurement applications.

   @inproceedings{bhargava2019mems,
     title = {Performance Enhancement of MEMS based Piezoelectric Pressure Sensor using Multistep Configuration},
     author = {Bhargava, Mudit and Tamboli, Alkausil and Sivanathan, K.},
     booktitle = {2019 IEEE 19th International Conference on Nanotechnology (IEEE-NANO)},
     pages = {576--579},
     year = {2019},
     organization = {IEEE},
     doi = {10.1109/NANO46743.2019.8993875},
     url = {https://ieeexplore.ieee.org/abstract/document/8993875},
     google_scholar_id = {9yKSN-GCB0IC},
     dimensions = {true},
   }