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Chaithanya Naik Mude

Side-Channel Security in Multi-Tenant Quantum Computers

225 words·2 mins

When multiple users share a quantum computer, crosstalk leaks information across tenant boundaries. This project designed an attack that deduces confidential user data by exploiting a crosstalk-based side channel on quantum hardware, using a graph neural network to decipher the victim’s circuit from the information leak — and examined side-channel vulnerabilities in superconducting qubit readout architectures.

Key results
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  • Demonstrated circuit-recovery attacks over crosstalk side channels on multi-tenant NISQ computers (NDSS 2025).
  • Characterized side-channel vulnerabilities specific to superconducting readout architectures (QCE 2024).

Papers
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Crosstalk-induced Side Channel Threats in Multi-Tenant NISQ Computers Navnil Choudhury, Chaithanya Naik Mude, Sanjay Das, Preetham Tikkireddi, Swamit Tannu, Kanad Basu. NDSS 2025. [Paper]

Understanding Side-Channel Vulnerabilities in Superconducting Qubit Readout Architectures Satvik Maurya, Chaithanya Naik Mude, Benjamin Lienhard, Swamit Tannu. QCE 2024. [Paper]

Code
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Code available upon request — public release coming soon.

BibTeX
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@inproceedings{choudhury2025crosstalk,
  title     = {Crosstalk-induced Side Channel Threats in Multi-Tenant NISQ Computers},
  author    = {Choudhury, Navnil and Mude, Chaithanya Naik and Das, Sanjay and Tikkireddi, Preetham and Tannu, Swamit and Basu, Kanad},
  booktitle = {Network and Distributed System Security Symposium (NDSS)},
  year      = {2025}
}

@inproceedings{maurya2024sidechannel,
  title     = {Understanding Side-Channel Vulnerabilities in Superconducting Qubit Readout Architectures},
  author    = {Maurya, Satvik and Mude, Chaithanya Naik and Lienhard, Benjamin and Tannu, Swamit},
  booktitle = {IEEE International Conference on Quantum Computing and Engineering (QCE)},
  year      = {2024}
}